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关于win7和xp的屏设置类

DisplayInfo.h

 1 #pragma once
 2 
 3 enum WinVerDef
 4 {
 5     WIN_VER_UNKNOWN = -1,
 6     WIN_VER_95 = 0,
 7     WIN_VER_98,
 8     WIN_VER_ME,
 9     WIN_VER_NT4,
10     WIN_VER_2K,
11     WIN_VER_XP,
12     WIN_VER_XP64,
13     WIN_VER_2K3,
14     WIN_VER_2K3R2,
15     WIN_VER_VISTA,
16     WIN_VER_2K8,
17     WIN_VER_2K8R2,
18     WIN_VER_WIN7,
19 };
20 
21 
22 
23 class CDisplayInfo
24 {
25 private:
26     CDisplayInfo(void);
27     ~CDisplayInfo(void);
28 public:
29     enum {DISPLAY_TYPE_SINGLE=8,DISPLAY_TYPE_CLONE=2,DISPLAY_TYPE_EXTEND=4};
30     static int GetDisplayMode();
31     static int GetDisplayModeXP();
32     static int GetDisplayModeWin7();
33     static BOOL SetScreenSaver(BOOL bCancle=TRUE,UINT newTime=-1);
34     static BOOL SetPowerSaver(BOOL bCancle=TRUE,UINT newTime=-1);
35     static BOOL SetDisplayMode(int iType,BOOL ExChange=FALSE);
36     static BOOL SetDisplayModeXP(int iType,BOOL ExChange=FALSE);
37     static BOOL SetDisplayModeWin7(int iType,BOOL ExChange=FALSE);
38     static int GetDisplayCardType();
39     static int AnalyCardType(LPCTSTR cardStr);
40     static BOOL GetOSVersion( WinVerDef* winVer );
41     static BOOL IsOlderSystem( WinVerDef specVer, INT* iResult );
42     static BOOL GetPrimaryMonitorInfo(DEVMODE *dvm);
43 };

View Code

DisplayInfo.cpp

   1 #include "StdAfx.h"
   2 #include "DisplayInfo.h"
   3 
   4 
   5 enum WinVerMajor
   6 {
   7     WIN_MAJOR_NT4_ME_98_95          = 4,
   8     WIN_MAJOR_2K3R2_2K3_XP_2K       = 5,
   9     WIN_MAJOR_WIN7_2K8R2_2K8_VISTA  = 6,
  10 };
  11 
  12 // 定义目前存在的操作系统次版本号
  13 
  14 enum WinVerminor
  15 {
  16     WIN_MINOR_2K8_VISTA_2K_NT4_95   = 0,
  17     WIN_MINOR_WIN7_2K8R2_XP         = 1,
  18     WIN_MINOR_2K3R2_2K3_XP64        = 2,
  19     WIN_MINOR_98                    = 10,
  20     WIN_MINOR_ME                    = 90,
  21 };
  22 //typedef void (WINAPI *GetNativeSystemInfoFunc)(LPSYSTEM_INFO);
  23 
  24 #define QDC_ALL_PATHS                   0x00000001
  25 #define QDC_ONLY_ACTIVE_PATHS           0x00000002
  26 #define QDC_DATABASE_CURRENT            0x00000004
  27 
  28 //
  29 // Definitions used by SetDisplayConfig.
  30 //
  31 
  32 #define SDC_TOPOLOGY_INTERNAL           0x00000001
  33 #define SDC_TOPOLOGY_CLONE              0x00000002
  34 #define SDC_TOPOLOGY_EXTEND             0x00000004
  35 #define SDC_TOPOLOGY_EXTERNAL           0x00000008
  36 #define SDC_TOPOLOGY_SUPPLIED           0x00000010
  37 #define SDC_USE_DATABASE_CURRENT        (SDC_TOPOLOGY_INTERNAL | SDC_TOPOLOGY_CLONE | SDC_TOPOLOGY_EXTEND | SDC_TOPOLOGY_EXTERNAL)
  38 
  39 #define SDC_USE_SUPPLIED_DISPLAY_CONFIG 0x00000020
  40 #define SDC_VALIDATE                    0x00000040
  41 #define SDC_APPLY                       0x00000080
  42 #define SDC_NO_OPTIMIZATION             0x00000100
  43 #define SDC_SAVE_TO_DATABASE            0x00000200
  44 #define SDC_ALLOW_CHANGES               0x00000400
  45 #define SDC_PATH_PERSIST_IF_REQUIRED    0x00000800
  46 #define SDC_FORCE_MODE_ENUMERATION      0x00001000
  47 #define SDC_ALLOW_PATH_ORDER_CHANGES    0x00002000
  48 
  49 typedef enum  {
  50     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_OTHER                  = -1,
  51     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_HD15                   = 0,
  52     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_SVIDEO                 = 1,
  53     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_COMPOSITE_VIDEO        = 2,
  54     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_COMPONENT_VIDEO        = 3,
  55     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_DVI                    = 4,
  56     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_HDMI                   = 5,
  57     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_LVDS                   = 6,
  58     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_D_JPN                  = 8,
  59     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_SDI                    = 9,
  60     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_DISPLAYPORT_EXTERNAL   = 10,
  61     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_DISPLAYPORT_EMBEDDED   = 11,
  62     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_UDI_EXTERNAL           = 12,
  63     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_UDI_EMBEDDED           = 13,
  64     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_SDTVDONGLE             = 14,
  65     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_INTERNAL               = 0x80000000,
  66     DISPLAYCONFIG_OUTPUT_TECHNOLOGY_FORCE_UINT32           = 0xFFFFFFFF 
  67 } DISPLAYCONFIG_VIDEO_OUTPUT_TECHNOLOGY;
  68 
  69 typedef enum  {
  70     DISPLAYCONFIG_ROTATION_IDENTITY       = 1,
  71     DISPLAYCONFIG_ROTATION_ROTATE90       = 2,
  72     DISPLAYCONFIG_ROTATION_ROTATE180      = 3,
  73     DISPLAYCONFIG_ROTATION_ROTATE270      = 4,
  74     DISPLAYCONFIG_ROTATION_FORCE_UINT32   = 0xFFFFFFFF 
  75 } DISPLAYCONFIG_ROTATION;
  76 
  77 typedef enum  {
  78     DISPLAYCONFIG_SCALING_IDENTITY                 = 1,
  79     DISPLAYCONFIG_SCALING_CENTERED                 = 2,
  80     DISPLAYCONFIG_SCALING_STRETCHED                = 3,
  81     DISPLAYCONFIG_SCALING_ASPECTRATIOCENTEREDMAX   = 4,
  82     DISPLAYCONFIG_SCALING_CUSTOM                   = 5,
  83     DISPLAYCONFIG_SCALING_PREFERRED                = 128,
  84     DISPLAYCONFIG_SCALING_FORCE_UINT32             = 0xFFFFFFFF 
  85 } DISPLAYCONFIG_SCALING;
  86 typedef struct DISPLAYCONFIG_RATIONAL {
  87     UINT32 Numerator;
  88     UINT32 Denominator;
  89 } DISPLAYCONFIG_RATIONAL;
  90 typedef enum  {
  91     DISPLAYCONFIG_SCANLINE_ORDERING_UNSPECIFIED                  = 0,
  92     DISPLAYCONFIG_SCANLINE_ORDERING_PROGRESSIVE                  = 1,
  93     DISPLAYCONFIG_SCANLINE_ORDERING_INTERLACED                   = 2,
  94     DISPLAYCONFIG_SCANLINE_ORDERING_INTERLACED_UPPERFIELDFIRST   = DISPLAYCONFIG_SCANLINE_ORDERING_INTERLACED,
  95     DISPLAYCONFIG_SCANLINE_ORDERING_INTERLACED_LOWERFIELDFIRST   = 3,
  96     DISPLAYCONFIG_SCANLINE_ORDERING_FORCE_UINT32                 = 0xFFFFFFFF 
  97 } DISPLAYCONFIG_SCANLINE_ORDERING;
  98 
  99 typedef enum  {
 100     DISPLAYCONFIG_PIXELFORMAT_8BPP           = 1,
 101     DISPLAYCONFIG_PIXELFORMAT_16BPP          = 2,
 102     DISPLAYCONFIG_PIXELFORMAT_24BPP          = 3,
 103     DISPLAYCONFIG_PIXELFORMAT_32BPP          = 4,
 104     DISPLAYCONFIG_PIXELFORMAT_NONGDI         = 5,
 105     DISPLAYCONFIG_PIXELFORMAT_FORCE_UINT32   = 0xffffffff 
 106 } DISPLAYCONFIG_PIXELFORMAT;
 107 typedef enum  {
 108     DISPLAYCONFIG_MODE_INFO_TYPE_SOURCE         = 1,
 109     DISPLAYCONFIG_MODE_INFO_TYPE_TARGET         = 2,
 110     DISPLAYCONFIG_MODE_INFO_TYPE_FORCE_UINT32   = 0xFFFFFFFF 
 111 } DISPLAYCONFIG_MODE_INFO_TYPE;
 112 
 113 typedef enum  {
 114     DISPLAYCONFIG_TOPOLOGY_INTERNAL       = 0x00000001,
 115     DISPLAYCONFIG_TOPOLOGY_CLONE          = 0x00000002,
 116     DISPLAYCONFIG_TOPOLOGY_EXTEND         = 0x00000004,
 117     DISPLAYCONFIG_TOPOLOGY_EXTERNAL       = 0x00000008,
 118     DISPLAYCONFIG_TOPOLOGY_FORCE_UINT32   = 0xFFFFFFFF 
 119 } DISPLAYCONFIG_TOPOLOGY_ID;
 120 
 121 typedef struct DISPLAYCONFIG_PATH_TARGET_INFO {
 122     LUID                                  adapterId;
 123     UINT32                                id;
 124     UINT32                                modeInfoIdx;
 125     DISPLAYCONFIG_VIDEO_OUTPUT_TECHNOLOGY outputTechnology;
 126     DISPLAYCONFIG_ROTATION                rotation;
 127     DISPLAYCONFIG_SCALING                 scaling;
 128     DISPLAYCONFIG_RATIONAL                refreshRate;
 129     DISPLAYCONFIG_SCANLINE_ORDERING       scanLineOrdering;
 130     BOOL                                  targetAvailable;
 131     UINT32                                statusFlags;
 132 } DISPLAYCONFIG_PATH_TARGET_INFO;
 133 typedef struct DISPLAYCONFIG_PATH_SOURCE_INFO {
 134     LUID   adapterId;
 135     UINT32 id;
 136     UINT32 modeInfoIdx;
 137     UINT32 statusFlags;
 138 } DISPLAYCONFIG_PATH_SOURCE_INFO;
 139 typedef struct DISPLAYCONFIG_PATH_INFO {
 140     DISPLAYCONFIG_PATH_SOURCE_INFO sourceInfo;
 141     DISPLAYCONFIG_PATH_TARGET_INFO targetInfo;
 142     UINT32                         flags;
 143 } DISPLAYCONFIG_PATH_INFO;
 144 typedef struct DISPLAYCONFIG_2DREGION {
 145     UINT32 cx;
 146     UINT32 cy;
 147 } DISPLAYCONFIG_2DREGION;
 148 typedef struct DISPLAYCONFIG_VIDEO_SIGNAL_INFO {
 149     UINT64                          pixelRate;
 150     DISPLAYCONFIG_RATIONAL          hSyncFreq;
 151     DISPLAYCONFIG_RATIONAL          vSyncFreq;
 152     DISPLAYCONFIG_2DREGION          activeSize;
 153     DISPLAYCONFIG_2DREGION          totalSize;
 154     UINT32                          videoStandard;
 155     DISPLAYCONFIG_SCANLINE_ORDERING scanLineOrdering;
 156 } DISPLAYCONFIG_VIDEO_SIGNAL_INFO;
 157 
 158 typedef struct DISPLAYCONFIG_TARGET_MODE {
 159     DISPLAYCONFIG_VIDEO_SIGNAL_INFO targetVideoSignalInfo;
 160 } DISPLAYCONFIG_TARGET_MODE;
 161 
 162 typedef struct DISPLAYCONFIG_SOURCE_MODE {
 163     UINT32                    width;
 164     UINT32                    height;
 165     DISPLAYCONFIG_PIXELFORMAT pixelFormat;
 166     POINTL                    position;
 167 } DISPLAYCONFIG_SOURCE_MODE;
 168 
 169 typedef struct DISPLAYCONFIG_MODE_INFO {
 170     DISPLAYCONFIG_MODE_INFO_TYPE infoType;
 171     UINT32                       id;
 172     LUID                         adapterId;
 173     union {
 174         DISPLAYCONFIG_TARGET_MODE targetMode;
 175         DISPLAYCONFIG_SOURCE_MODE sourceMode;
 176     };
 177 } DISPLAYCONFIG_MODE_INFO;
 178 typedef LONG (WINAPI *SETDISPLAYCONFIGFUNC)(__in      UINT32 numPathArrayElements,
 179                                         __in_opt  DISPLAYCONFIG_PATH_INFO *pathArray,
 180                                         __in      UINT32 numModeInfoArrayElements,
 181                                         __in_opt  DISPLAYCONFIG_MODE_INFO *modeInfoArray,
 182                                         __in      UINT32 Flags
 183                                         );
 184 typedef LONG (WINAPI *GETDISPLAYBUFFERSIZESFUNC)(
 185                                  __in   UINT32 Flags,
 186                                  __out  UINT32 *pNumPathArrayElements,
 187                                  __out  UINT32 *pNumModeInfoArrayElements
 188                                  );
 189 
 190 typedef LONG (WINAPI *QUERYDISPLAYCONFIGFUNC)(
 191                         __in       UINT32 Flags,
 192                         __inout    UINT32 *pNumPathArrayElements,
 193                         __out      DISPLAYCONFIG_PATH_INFO *pPathInfoArray,
 194                         __inout    UINT32 *pNumModeInfoArrayElements,
 195                         __out      DISPLAYCONFIG_MODE_INFO *pModeInfoArray,
 196                         __out_opt  DISPLAYCONFIG_TOPOLOGY_ID *pCurrentTopologyId
 197                         );
 198 
 199 
 200 CDisplayInfo::CDisplayInfo(void)
 201 {
 202 }
 203 
 204 CDisplayInfo::~CDisplayInfo(void)
 205 {
 206 }
 207 
 208 //功能: 设置/取消屏保
 209 //参数: bCancle: TRUE取消屏保,此时会自动记录原来的屏保时间.FALSE设置屏保,如果newTime为-1,则恢复原来的屏保时间.
 210 //      newTime:屏保时间,如果为-1,则被忽略.
 211 BOOL CDisplayInfo::SetScreenSaver(BOOL bCancle/* =TRUE */,UINT newTime/* =-1 */)
 212 {
 213     static UINT ScrSaverTimeOut=600;
 214     if(bCancle)
 215     {
 216         //读取原来的屏保时间,以便恢复
 217         ::SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT,0,&ScrSaverTimeOut,0);
 218 
 219         //取消屏保.
 220         ::SystemParametersInfo(SPI_SETSCREENSAVEACTIVE,FALSE,0,SPIF_UPDATEINIFILE|SPIF_SENDCHANGE);
 221     }
 222     else
 223     {
 224         UINT TimeOut=ScrSaverTimeOut;
 225         if(newTime != UINT(-1))
 226         {
 227             TimeOut=newTime;
 228         }
 229         //设置原来的屏保时间
 230         ::SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT,TimeOut,NULL,SPIF_UPDATEINIFILE|SPIF_SENDCHANGE);
 231         //激活屏保.
 232         ::SystemParametersInfo(SPI_SETSCREENSAVEACTIVE,TRUE,0,SPIF_UPDATEINIFILE|SPIF_SENDCHANGE);
 233     }
 234     return TRUE;
 235 }
 236 
 237 //功能: 设置/取消显示器电源自动关闭.
 238 //参数: bCancle: TRUE取消自动关闭显示器电源,FLASE设置自动关闭显示器电源.
 239 //      newTime: 新的显示器电源自动关闭时间,如果为-1,设置时按原来显示器电源时间设置.
 240 BOOL CDisplayInfo::SetPowerSaver(BOOL bCancle/* =TRUE */,UINT newTime/* =-1 */)
 241 {
 242     static UINT PowerTimeout=900;
 243     if(bCancle)
 244     {
 245         //获得原来电源时间.
 246         ::SystemParametersInfo(SPI_GETPOWEROFFTIMEOUT,0,&PowerTimeout,0);
 247         //取消自动关闭显示器
 248         //这里不能用SPI_SETPOWEROFFACTIVE,用这个标记不能成功.
 249         ::SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT,FALSE,0,SPIF_UPDATEINIFILE|SPIF_SENDCHANGE);
 250     }
 251     else
 252     {
 253         UINT TimeOut=PowerTimeout;
 254         if(newTime != UINT(-1))
 255         {
 256             TimeOut=newTime;
 257         }
 258         //设置原来的电源时间.
 259         ::SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT,TimeOut,NULL,SPIF_UPDATEINIFILE|SPIF_SENDCHANGE);
 260         //激活自动关闭显示器.
 261         ::SystemParametersInfo(SPI_SETPOWEROFFACTIVE,TRUE,0,SPIF_UPDATEINIFILE|SPIF_SENDCHANGE);
 262     }
 263     return TRUE;
 264 }
 265 
 266 //功能: 获得Win7n以前OS当前多显示器的显示模式.
 267 //返回值: DISPLAY_TYPE_SINGLE:单显示器; 
 268 //        DISPLAY_TYPE_CLONE ;复制模式
 269 //        DISPLAY_TYPE_EXTEND:扩展模式;
 270 int CDisplayInfo::GetDisplayModeXP()
 271 {
 272     if( 1 != GetDisplayCardType())//是否ATI显卡
 273     {
 274         return 0;
 275     }
 276     DISPLAY_DEVICE DispDev; 
 277     TCHAR szSaveDeviceName[0x60];
 278     BOOL bRet = TRUE;
 279 
 280     DEVMODE dvm;
 281     dvm.dmSize=sizeof(DEVMODE);
 282     dvm.dmDriverExtra=0;
 283     dvm.dmFields=DM_POSITION;
 284 
 285     ZeroMemory(&DispDev, sizeof(DISPLAY_DEVICE));
 286     DispDev.cb = sizeof(DISPLAY_DEVICE); 
 287 
 288 
 289     DWORD d1=0,d2=0,d1m0=0,d1m1=0,d2m0=0,d2m1=0;
 290 
 291     CString Str,outStr;
 292     int i=0,j=0;
 293     BOOL bRet2=TRUE;
 294     DWORD erro=0;
 295     int jDev=0;
 296     while(bRet)
 297     {
 298         bRet=EnumDisplayDevices(NULL,i,&DispDev,0);//遍历当前设备.
 299         if(bRet)
 300         {
 301             memset(szSaveDeviceName,0,0x60);
 302             lstrcpy(szSaveDeviceName, DispDev.DeviceName);
 303             bRet2=TRUE;
 304             j=0;
 305             OutputDebugString(szSaveDeviceName);
 306             Str.Format(TEXT("%08X  ------------------------------------"),DispDev.StateFlags);
 307             OutputDebugString(Str);
 308             if(i==0)
 309             {
 310                 d1=DispDev.StateFlags;
 311             }
 312             else if(i==1)
 313             {
 314                 d2=DispDev.StateFlags;
 315             }
 316             while(bRet2)
 317             {
 318                 bRet2=EnumDisplayDevices(szSaveDeviceName,j,&DispDev,0);//遍历指定设备下的其它设备参数.
 319                 if(bRet2)
 320                 {
 321                     j++;
 322                     if(_tcsstr(DispDev.DeviceName,TEXT("Default_Monitor"))!=NULL)
 323                     {
 324                         continue;
 325                     }
 326                     BOOL t=EnumDisplaySettings(DispDev.DeviceName,ENUM_CURRENT_SETTINGS,&dvm);//遍历指定设备的当前配置.
 327                     if(t==FALSE)
 328                     {
 329                         erro=GetLastError();
 330                     }
 331                     OutputDebugString(DispDev.DeviceName);
 332                     //OutputDebugString(DispDev.DeviceString);
 333                     OutputDebugString(DispDev.DeviceID);//LED
 334                     //OutputDebugString(DispDev.DeviceKey);
 335                     Str.Format(TEXT("%08X
"),DispDev.StateFlags);
 336                     OutputDebugString(Str);
 337                     if(i==0)
 338                     {
 339                         if(jDev==0)
 340                         {
 341                             d1m0=DispDev.StateFlags;
 342                         }
 343                         else if(jDev==1)
 344                         {
 345                             d1m1=DispDev.StateFlags;
 346                         }
 347                     }
 348                     else if(i==1)
 349                     {
 350                         if(jDev==0)
 351                         {
 352                             d2m0=DispDev.StateFlags;
 353                         }
 354                         else if(jDev==1)
 355                         {
 356                             d2m1=DispDev.StateFlags;
 357                         }
 358                     }
 359                     jDev++;
 360                 }
 361 
 362             }
 363         }
 364         ++i;
 365     }
 366 
 367     if((d1&DISPLAY_DEVICE_ATTACHED_TO_DESKTOP)==DISPLAY_DEVICE_ATTACHED_TO_DESKTOP && 
 368         (d2&DISPLAY_DEVICE_ATTACHED_TO_DESKTOP)==DISPLAY_DEVICE_ATTACHED_TO_DESKTOP)
 369     {
 370         OutputDebugString(TEXT("扩展模式"));
 371         return DISPLAY_TYPE_EXTEND;
 372     }
 373 
 374     if( (d1m0&DISPLAY_DEVICE_ATTACHED_TO_DESKTOP)==DISPLAY_DEVICE_ATTACHED_TO_DESKTOP &&
 375         (d1m1&DISPLAY_DEVICE_ATTACHED_TO_DESKTOP)==DISPLAY_DEVICE_ATTACHED_TO_DESKTOP )
 376     {
 377         OutputDebugString(TEXT("复制模式"));
 378         return DISPLAY_TYPE_CLONE;
 379     }
 380 
 381     OutputDebugString(TEXT("单显示器"));
 382     return DISPLAY_TYPE_SINGLE;
 383 }
 384 
 385 //功能: 获得Win7下当前多显示器的显示模式.
 386 //返回值: DISPLAY_TYPE_SINGLE:单显示器; 
 387 //        DISPLAY_TYPE_CLONE ;复制模式
 388 //        DISPLAY_TYPE_EXTEND:扩展模式;
 389 int CDisplayInfo::GetDisplayModeWin7()
 390 {
 391     QUERYDISPLAYCONFIGFUNC    QueryDisplayConfig=NULL;
 392     HMODULE hMod=LoadLibrary(TEXT("user32.dll"));
 393     if(hMod)
 394     {
 395         QueryDisplayConfig=(QUERYDISPLAYCONFIGFUNC)GetProcAddress(hMod,"QueryDisplayConfig");
 396         if( QueryDisplayConfig)
 397         {
 398             UINT32 NumPathArrayElements = 0; 
 399             UINT32 NumModeInfoArrayElements = 0; 
 400             LONG returnValue=0;
 401             DISPLAYCONFIG_TOPOLOGY_ID topID=DISPLAYCONFIG_TOPOLOGY_FORCE_UINT32;
 402             returnValue = QueryDisplayConfig(
 403                 QDC_DATABASE_CURRENT,
 404                 NULL, NULL,
 405                 NULL, NULL,
 406                 &topID); 
 407             if(returnValue == ERROR_SUCCESS)
 408             {
 409                 int ret=0;
 410                 switch(topID)
 411                 {
 412                 case DISPLAYCONFIG_TOPOLOGY_CLONE:
 413                     ret=DISPLAY_TYPE_CLONE;
 414                     break;
 415                 case DISPLAYCONFIG_TOPOLOGY_EXTEND:
 416                     ret=DISPLAY_TYPE_EXTEND;
 417                     break;
 418                 default:
 419                     ret=DISPLAY_TYPE_SINGLE;
 420                     break;
 421                 }
 422                 return ret;
 423             }
 424         }
 425     }
 426     return 0;
 427 }
 428 
 429 
 430 //功能: 获得当前多显示器的显示模式.
 431 //返回值: DISPLAY_TYPE_SINGLE:单显示器; 
 432 //        DISPLAY_TYPE_CLONE ;复制模式
 433 //        DISPLAY_TYPE_EXTEND:扩展模式;
 434 int CDisplayInfo::GetDisplayMode()
 435 {
 436     WinVerDef OsVer;
 437     int ret=0;
 438     if(GetOSVersion(&OsVer))
 439     {
 440         switch(OsVer)
 441         {
 442         case WIN_VER_WIN7:
 443             ret=GetDisplayModeWin7();
 444             break;
 445         default:
 446             ret=GetDisplayModeXP();
 447             break;
 448         }
 449     }
 450     return ret;
 451 }
 452 
 453 BOOL CDisplayInfo::GetPrimaryMonitorInfo(DEVMODE *dvm)
 454 {
 455     if(dvm==NULL)
 456     {
 457         return FALSE;
 458     }
 459     dvm->dmSize=sizeof(DEVMODE);
 460 
 461     DISPLAY_DEVICE DispDev; 
 462     BOOL bRet = TRUE;
 463     ZeroMemory(&DispDev, sizeof(DISPLAY_DEVICE));
 464     DispDev.cb = sizeof(DISPLAY_DEVICE); 
 465     int i=0;
 466     DWORD erro=0;
 467     while(bRet)
 468     {
 469         bRet=EnumDisplayDevices(NULL,i,&DispDev,0);
 470         if(bRet)
 471         {
 472             if(DispDev.StateFlags&DISPLAY_DEVICE_PRIMARY_DEVICE)
 473             {
 474                 bRet=EnumDisplaySettings(DispDev.DeviceName,ENUM_CURRENT_SETTINGS,dvm);
 475                 if(bRet)
 476                 {
 477                     return TRUE;
 478                 }
 479             }
 480         }
 481         i++;
 482     }
 483     return FALSE;
 484 }
 485 
 486 //功能:设置多显示器显示模式
 487 //参数:iType;显示模式,可选以下三种:
 488 //     DISPLAY_TYPE_SINGLE; 单显示器
 489 //     DISPLAY_TYPE_CLONE;  复制模式
 490 //     DISPLAY_TYEP_EXTEND; 扩展模式
 491 
 492 BOOL CDisplayInfo::SetDisplayMode(int iType,BOOL ExChange/* =FALSE */)
 493 {
 494     WinVerDef osVer;
 495     if(GetOSVersion(&osVer))
 496     {
 497         if(osVer==WIN_VER_WIN7)
 498         {
 499             OutputDebugString(TEXT("Win7"));
 500             SetDisplayModeWin7(iType,ExChange);
 501         }
 502         else
 503         {
 504             OutputDebugString(TEXT("Other OS"));
 505             SetDisplayModeXP(iType,ExChange);
 506         }
 507         return TRUE;
 508     }
 509     return FALSE;
 510 }
 511 
 512 //临时测试用
 513 void OutPath(DISPLAYCONFIG_PATH_INFO *pPath)
 514 {
 515     CString Str;
 516     Str=TEXT("--------------------PATH-----------------------
");
 517     OutputDebugString(Str);
 518     Str.Format(TEXT("state:%08X
"),pPath->flags);
 519     OutputDebugString(Str);
 520     Str.Format(TEXT("source:
adapterID_H:%08X L:%08X
ID:%08X
ModeIndex:%08X
Flag:%08X"),
 521         pPath->sourceInfo.adapterId.HighPart,pPath->sourceInfo.adapterId.LowPart,
 522         pPath->sourceInfo.id,pPath->sourceInfo.modeInfoIdx,pPath->sourceInfo.statusFlags);
 523     OutputDebugString(Str);
 524     Str.Format(TEXT("target:
adapterId H: %08X L:%08X ID:%08X Index:%08X"),
 525         pPath->targetInfo.adapterId.HighPart,pPath->targetInfo.adapterId.LowPart,
 526         pPath->targetInfo.id,pPath->targetInfo.modeInfoIdx);
 527     OutputDebugString(Str);
 528     
 529     switch(pPath->targetInfo.outputTechnology)//输出类型.
 530     {
 531     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_OTHER:
 532         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_OTHER
");
 533         break;
 534     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_HD15:
 535         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_HD15
");
 536         break;
 537     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_SVIDEO:
 538         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_SVIDEO
");
 539         break;
 540     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_COMPOSITE_VIDEO :
 541         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_COMPOSITE_VIDEO
");
 542         break;
 543     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_COMPONENT_VIDEO :
 544         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_COMPONENT_VIDEO
");
 545         break;
 546     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_DVI:
 547         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_DVI
");
 548         break;
 549     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_HDMI:
 550         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_HDMI
");
 551         break;
 552     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_LVDS:
 553         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_LVDS
");
 554         break;
 555     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_D_JPN:
 556         OutputDebugStringA("outputTechnology: outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_D_JPN
");
 557         break;
 558     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_SDI:
 559         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_SDI
");
 560         break;
 561     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_DISPLAYPORT_EXTERNAL:
 562         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_DISPLAYPORT_EXTERNAL
");
 563         break;
 564     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_DISPLAYPORT_EMBEDDED:
 565         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_DISPLAYPORT_EMBEDDED
");
 566         break;
 567     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_UDI_EXTERNAL:
 568         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_UDI_EXTERNAL
");
 569         break;
 570     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_UDI_EMBEDDED:
 571         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_UDI_EMBEDDED
");
 572         break;
 573     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_SDTVDONGLE:
 574         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_SDTVDONGLE
");
 575         break;
 576     case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_INTERNAL :
 577         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_INTERNAL
");
 578         break;
 579     /*case DISPLAYCONFIG_OUTPUT_TECHNOLOGY_FORCE_UINT32:
 580         OutputDebugStringA("outputTechnology: DISPLAYCONFIG_OUTPUT_TECHNOLOGY_FORCE_UINT32
");
 581         break;*/
 582     }
 583 
 584     Str.Format(TEXT("refreshRate--Numerator:%-08X Denominator:%08X"),
 585         pPath->targetInfo.refreshRate.Numerator,pPath->targetInfo.refreshRate.Denominator);
 586 
 587     switch(pPath->targetInfo.rotation)
 588     {
 589     case DISPLAYCONFIG_ROTATION_IDENTITY:
 590         OutputDebugString(TEXT("rotation: DISPLAYCONFIG_ROTATION_IDENTITY
"));
 591         break;
 592     case DISPLAYCONFIG_ROTATION_ROTATE90:
 593         OutputDebugString(TEXT("rotation: DISPLAYCONFIG_ROTATION_ROTATE90
"));
 594         break;
 595     case DISPLAYCONFIG_ROTATION_ROTATE180:
 596         OutputDebugString(TEXT("rotation: DISPLAYCONFIG_ROTATION_ROTATE180
"));
 597         break;
 598     case DISPLAYCONFIG_ROTATION_ROTATE270:
 599         OutputDebugString(TEXT("rotation: DISPLAYCONFIG_ROTATION_ROTATE270
"));
 600         break;
 601     case DISPLAYCONFIG_ROTATION_FORCE_UINT32:
 602         OutputDebugString(TEXT("rotation: DISPLAYCONFIG_ROTATION_FORCE_UINT32
"));
 603         break;
 604     }
 605 
 606     switch(pPath->targetInfo.scaling)
 607     {
 608     case DISPLAYCONFIG_SCALING_IDENTITY:
 609         OutputDebugString(TEXT("scaling: DISPLAYCONFIG_SCALING_IDENTITY
"));
 610         break;
 611     case DISPLAYCONFIG_SCALING_CENTERED:
 612         OutputDebugString(TEXT("scaling: DISPLAYCONFIG_SCALING_CENTERED
"));
 613         break;
 614     case DISPLAYCONFIG_SCALING_STRETCHED:
 615         OutputDebugString(TEXT("scaling: DISPLAYCONFIG_SCALING_STRETCHED
"));
 616         break;
 617     case DISPLAYCONFIG_SCALING_ASPECTRATIOCENTEREDMAX:
 618         OutputDebugString(TEXT("scaling: DISPLAYCONFIG_SCALING_ASPECTRATIOCENTEREDMAX
"));
 619         break;
 620     case DISPLAYCONFIG_SCALING_CUSTOM:
 621         OutputDebugString(TEXT("scaling: DISPLAYCONFIG_SCALING_CUSTOM
"));
 622         break;
 623     case DISPLAYCONFIG_SCALING_PREFERRED:
 624         OutputDebugString(TEXT("scaling: DISPLAYCONFIG_SCALING_PREFERRED
"));
 625         break;
 626     case DISPLAYCONFIG_SCALING_FORCE_UINT32:
 627         OutputDebugString(TEXT("scaling: DISPLAYCONFIG_SCALING_FORCE_UINT32
"));
 628         break;
 629     }
 630     switch(pPath->targetInfo.scanLineOrdering)
 631     {
 632     case DISPLAYCONFIG_SCANLINE_ORDERING_UNSPECIFIED:
 633         OutputDebugString(TEXT("scanLineOrdering: DISPLAYCONFIG_SCANLINE_ORDERING_UNSPECIFIED
"));
 634         break;
 635     case DISPLAYCONFIG_SCANLINE_ORDERING_PROGRESSIVE:
 636         OutputDebugString(TEXT("scanLineOrdering: 
"));
 637         break;
 638     case DISPLAYCONFIG_SCANLINE_ORDERING_INTERLACED:
 639         OutputDebugString(TEXT("scanLineOrdering: DISPLAYCONFIG_SCANLINE_ORDERING_PROGRESSIVE
"));
 640         break;
 641     /*case DISPLAYCONFIG_SCANLINE_ORDERING_INTERLACED_UPPERFIELDFIRST:
 642         OutputDebugString(TEXT("scanLineOrdering: DISPLAYCONFIG_SCANLINE_ORDERING_INTERLACED_UPPERFIELDFIRST
"));
 643         break;*/
 644     case DISPLAYCONFIG_SCANLINE_ORDERING_INTERLACED_LOWERFIELDFIRST:
 645         OutputDebugString(TEXT("scanLineOrdering: DISPLAYCONFIG_SCANLINE_ORDERING_INTERLACED_LOWERFIELDFIRST
"));
 646         break;
 647     case DISPLAYCONFIG_SCANLINE_ORDERING_FORCE_UINT32:
 648         OutputDebugString(TEXT("scanLineOrdering: DISPLAYCONFIG_SCANLINE_ORDERING_FORCE_UINT32
"));
 649         break;
 650     }
 651     Str.Format(TEXT("state:%08X  valiable:%08X"),
 652         pPath->targetInfo.statusFlags,pPath->targetInfo.targetAvailable);
 653     OutputDebugString(Str);
 654 
 655 }
 656 //临时测试用
 657 void OutMode(DISPLAYCONFIG_MODE_INFO *pMode)
 658 {
 659     CString Str;
 660     OutputDebugString(TEXT("-----------------------MODE------------------------
"));
 661     Str.Format(TEXT("adpterID H:%08X L:%98X ID:%08X"),
 662         pMode->adapterId.HighPart,pMode->adapterId.LowPart,pMode->id);
 663     OutputDebugString(Str);
 664     switch(pMode->infoType)
 665     {
 666     case DISPLAYCONFIG_MODE_INFO_TYPE_SOURCE:
 667         OutputDebugString(TEXT("infotype DISPLAYCONFIG_MODE_INFO_TYPE_SOURCE
"));
 668         break;
 669     case DISPLAYCONFIG_MODE_INFO_TYPE_TARGET:
 670         OutputDebugString(TEXT("infotype DISPLAYCONFIG_MODE_INFO_TYPE_TARGET
"));
 671         break;
 672     case DISPLAYCONFIG_MODE_INFO_TYPE_FORCE_UINT32:
 673         OutputDebugString(TEXT("infotype DISPLAYCONFIG_MODE_INFO_TYPE_FORCE_UINT32
"));
 674         break;
 675     }
 676     switch(pMode->sourceMode.pixelFormat)
 677     {
 678     case DISPLAYCONFIG_PIXELFORMAT_16BPP:
 679         OutputDebugString(TEXT("source pixelFormat: DISPLAYCONFIG_PIXELFORMAT_16BPP
"));
 680         break;
 681     case DISPLAYCONFIG_PIXELFORMAT_8BPP:
 682         OutputDebugString(TEXT("source pixelFormat: DISPLAYCONFIG_PIXELFORMAT_8BPP
"));
 683         break;
 684     case DISPLAYCONFIG_PIXELFORMAT_32BPP:
 685         OutputDebugString(TEXT("source pixelFormat: DISPLAYCONFIG_PIXELFORMAT_32BPP
"));
 686         break;
 687     case DISPLAYCONFIG_PIXELFORMAT_24BPP:
 688         OutputDebugString(TEXT("source pixelFormat: DISPLAYCONFIG_PIXELFORMAT_24BPP
"));
 689         break;
 690     case DISPLAYCONFIG_PIXELFORMAT_NONGDI:
 691         OutputDebugString(TEXT("source pixelFormat: DISPLAYCONFIG_PIXELFORMAT_NONGDI
"));
 692         break;
 693     case DISPLAYCONFIG_PIXELFORMAT_FORCE_UINT32:
 694         OutputDebugString(TEXT("source pixelFormat: DISPLAYCONFIG_PIXELFORMAT_FORCE_UINT32
"));
 695         break;
 696     }
 697     Str.Format(TEXT("source pos(%d,%d) Width:%d Height:%d
"),
 698         pMode->sourceMode.position.x,pMode->sourceMode.position.y,
 699         pMode->sourceMode.width,pMode->sourceMode.height);
 700     OutputDebugString(Str);
 701 
 702     Str.Format(TEXT("target activeSize(CX=%d,cy=%d)
"),
 703         pMode->targetMode.targetVideoSignalInfo.activeSize.cx,pMode->targetMode.targetVideoSignalInfo.activeSize.cy);
 704     OutputDebugString(Str);
 705     Str.Format(TEXT("target totalsize(cx=%d,cy=%d)"),
 706         pMode->targetMode.targetVideoSignalInfo.totalSize.cx,
 707         pMode->targetMode.targetVideoSignalInfo.totalSize.cy);
 708     OutputDebugString(Str);
 709     Str.Format(TEXT("target pixelRate:%016X videoStander:%08X
"),
 710         pMode->targetMode.targetVideoSignalInfo.pixelRate,
 711         pMode->targetMode.targetVideoSignalInfo.videoStandard);
 712     OutputDebugString(Str);
 713 
 714     Str.Format(TEXT("target Hfreq Numerator:%08X Denominator:%08X
"),
 715         pMode->targetMode.targetVideoSignalInfo.hSyncFreq.Numerator,
 716         pMode->targetMode.targetVideoSignalInfo.hSyncFreq.Denominator);
 717     OutputDebugString(Str);
 718     Str.Format(TEXT("target Vfreq Numerator:%08X Denominator:%08X
"),
 719         pMode->targetMode.targetVideoSignalInfo.vSyncFreq.Numerator,
 720         pMode->targetMode.targetVideoSignalInfo.vSyncFreq.Denominator);
 721     OutputDebugString(Str);
 722     switch(pMode->targetMode.targetVideoSignalInfo.scanLineOrdering)
 723     {
 724         case DISPLAYCONFIG_SCANLINE_ORDERING_UNSPECIFIED:
 725         OutputDebugString(TEXT("scanLineOrdering: DISPLAYCONFIG_SCANLINE_ORDERING_UNSPECIFIED
"));
 726         break;
 727     case DISPLAYCONFIG_SCANLINE_ORDERING_PROGRESSIVE:
 728         OutputDebugString(TEXT("scanLineOrdering: 
"));
 729         break;
 730     case DISPLAYCONFIG_SCANLINE_ORDERING_INTERLACED:
 731         OutputDebugString(TEXT("scanLineOrdering: DISPLAYCONFIG_SCANLINE_ORDERING_PROGRESSIVE
"));
 732         break;
 733     /*case DISPLAYCONFIG_SCANLINE_ORDERING_INTERLACED_UPPERFIELDFIRST:
 734         OutputDebugString(TEXT("scanLineOrdering: DISPLAYCONFIG_SCANLINE_ORDERING_INTERLACED_UPPERFIELDFIRST
"));
 735         break;*/
 736     case DISPLAYCONFIG_SCANLINE_ORDERING_INTERLACED_LOWERFIELDFIRST:
 737         OutputDebugString(TEXT("scanLineOrdering: DISPLAYCONFIG_SCANLINE_ORDERING_INTERLACED_LOWERFIELDFIRST
"));
 738         break;
 739     case DISPLAYCONFIG_SCANLINE_ORDERING_FORCE_UINT32:
 740         OutputDebugString(TEXT("scanLineOrdering: DISPLAYCONFIG_SCANLINE_ORDERING_FORCE_UINT32
"));
 741         break;
 742     }
 743     
 744     
 745 }
 746 
 747 BOOL CDisplayInfo::SetDisplayModeWin7(int iType,BOOL ExChange/* =FALSE */)
 748 {
 749     SETDISPLAYCONFIGFUNC      SetDisplayConfig=NULL;
 750     GETDISPLAYBUFFERSIZESFUNC GetDisplayConfigBufferSizes=NULL;
 751     QUERYDISPLAYCONFIGFUNC    QueryDisplayConfig=NULL;
 752     HMODULE hMod=LoadLibrary(TEXT("user32.dll"));
 753     if(hMod)
 754     {
 755         OutputDebugString(TEXT("Load OK"));
 756         SetDisplayConfig=(SETDISPLAYCONFIGFUNC)GetProcAddress(hMod,"SetDisplayConfig");
 757         GetDisplayConfigBufferSizes=(GETDISPLAYBUFFERSIZESFUNC)(GetProcAddress(hMod,"GetDisplayConfigBufferSizes"));
 758         QueryDisplayConfig=(QUERYDISPLAYCONFIGFUNC)GetProcAddress(hMod,"QueryDisplayConfig");
 759         if(SetDisplayConfig && GetDisplayConfigBufferSizes && QueryDisplayConfig)
 760         {
 761             UINT32 NumPathArrayElements = 0; 
 762             UINT32 NumModeInfoArrayElements = 0; 
 763             LONG returnValue;
 764             returnValue = GetDisplayConfigBufferSizes(
 765                 QDC_ALL_PATHS,
 766                 &NumPathArrayElements,
 767                 &NumModeInfoArrayElements); // Returns Success 
 768             if (returnValue != ERROR_SUCCESS)
 769             {
 770                 OutputDebugString(TEXT("GetDisplayConfigBufferSizes error"));   
 771             }
 772             DISPLAYCONFIG_PATH_INFO *pPathInfoArray =
 773                 new DISPLAYCONFIG_PATH_INFO[NumPathArrayElements]; 
 774 
 775             DISPLAYCONFIG_MODE_INFO *pModeInfoArray =
 776                 new DISPLAYCONFIG_MODE_INFO[NumModeInfoArrayElements]; 
 777 
 778             DISPLAYCONFIG_TOPOLOGY_ID topID=DISPLAYCONFIG_TOPOLOGY_FORCE_UINT32;
 779             returnValue = QueryDisplayConfig(
 780                 QDC_ALL_PATHS,
 781                 &NumPathArrayElements, pPathInfoArray,
 782                 &NumModeInfoArrayElements, pModeInfoArray,
 783                 NULL); 
 784             if(returnValue != ERROR_SUCCESS)
 785             {
 786                 OutputDebugString(TEXT(" QueryDisplayConfig erro"));
 787             }
 788             CString Str;
 789             for(int iPath=0;iPath<NumPathArrayElements;++iPath)
 790             {
 791                 OutPath(&pPathInfoArray[iPath]);
 792             }
 793             for(int iMode=0;iMode<NumModeInfoArrayElements;++iMode)
 794             {
 795                 OutMode(&pModeInfoArray[iMode]);
 796             }
 797             /*switch(topID)
 798             {
 799             case DISPLAYCONFIG_TOPOLOGY_CLONE:
 800                 OutputDebugString(TEXT("DISPLAYCONFIG_TOPOLOGY_CLONE"));
 801                 break;
 802             case DISPLAYCONFIG_TOPOLOGY_INTERNAL:
 803                 OutputDebugString(TEXT("DISPLAYCONFIG_TOPOLOGY_INTERNAL"));
 804                 break;
 805             case DISPLAYCONFIG_TOPOLOGY_EXTEND:
 806                 OutputDebugString(TEXT("DISPLAYCONFIG_TOPOLOGY_EXTEND"));
 807                 break;
 808             case DISPLAYCONFIG_TOPOLOGY_EXTERNAL:
 809                 OutputDebugString(TEXT("DISPLAYCONFIG_TOPOLOGY_EXTERNAL"));
 810                 break;
 811             case DISPLAYCONFIG_TOPOLOGY_FORCE_UINT32:
 812                 OutputDebugString(TEXT("DISPLAYCONFIG_TOPOLOGY_FORCE_UINT32"));
 813                 break;
 814             default:
 815                 break;
 816             }*/
 817 
 818             OutputDebugString(TEXT("Get OK"));
 819             //returnValue=SetDisplayConfig(NumPathArrayElements,pPathInfoArray,NumModeInfoArrayElements,pModeInfoArray,SDC_TOPOLOGY_CLONE|SDC_APPLY);
 820             returnValue=SetDisplayConfig(0,NULL,0,NULL,iType|SDC_APPLY);//设置DC_TOPOLOGY_XXX前面4个参数must be 0;
 821             switch(returnValue)
 822             {
 823             case ERROR_SUCCESS:
 824                 OutputDebugString(TEXT("ERRO_SUCESS"));
 825                 break;
 826             case ERROR_INVALID_PARAMETER:
 827                 OutputDebugString(TEXT("ERROR_INVALID_PARAMETER"));
 828                 break;
 829             case ERROR_NOT_SUPPORTED:
 830                 OutputDebugString(TEXT("ERROR_NOT_SUPPORTED"));
 831                 break;
 832             case ERROR_ACCESS_DENIED:
 833                 OutputDebugString(TEXT("ERROR_ACCESS_DENIED"));
 834                 break;
 835             case ERROR_GEN_FAILURE:
 836                 OutputDebugString(TEXT("ERROR_GEN_FAILURE"));
 837                 break;
 838             case ERROR_INSUFFICIENT_BUFFER:
 839                 OutputDebugString(TEXT("ERROR_INSUFFICIENT_BUFFER"));
 840                 break;
 841             default:
 842                 OutputDebugString(TEXT("unkonw"));
 843             }
 844             FreeLibrary(hMod);
 845             return TRUE;
 846         }
 847         FreeLibrary(hMod);
 848     }
 849     return FALSE;
 850 }
 851 
 852 BOOL CDisplayInfo::SetDisplayModeXP(int iType,BOOL ExChange/*=0*/)
 853 {
 854     DEVMODE dvm1;
 855     memset(&dvm1, 0, sizeof(dvm1));
 856     dvm1.dmSize = sizeof(dvm1);
 857     DEVMODE dvm2;
 858     memset(&dvm2, 0, sizeof(DEVMODE));
 859     dvm2.dmSize = sizeof(DEVMODE);
 860 
 861     TCHAR PriDevName[0x100]={0};
 862     TCHAR AddDevName[0x100]={0};
 863 
 864     DISPLAY_DEVICE DispDev; 
 865     BOOL bRet = TRUE;
 866     ZeroMemory(&DispDev, sizeof(DISPLAY_DEVICE));
 867     DispDev.cb = sizeof(DISPLAY_DEVICE); 
 868     int i=0;
 869     int nOffset=0;
 870     BOOL bAnaly=FALSE;
 871     while(bRet)
 872     {
 873         bRet=EnumDisplayDevices(NULL,i,&DispDev,0);
 874         if(bAnaly==FALSE)
 875         {
 876             bAnaly=TRUE;
 877             if(1==AnalyCardType(DispDev.DeviceName))//只能是API显示卡
 878             {
 879                 return FALSE;
 880             }
 881             bAnaly=TRUE;
 882         }
 883         if(bRet)
 884         {
 885             if(DispDev.StateFlags&DISPLAY_DEVICE_PRIMARY_DEVICE)
 886             {
 887                 _tcscpy_s(PriDevName,0x100,DispDev.DeviceName);
 888                 bRet=EnumDisplaySettingsEx(DispDev.DeviceName,ENUM_CURRENT_SETTINGS,&dvm1,EDS_RAWMODE);
 889             }
 890             else if((DispDev.StateFlags&0xFFFF)<8)
 891             {
 892                 _tcscpy_s(AddDevName,0x100,DispDev.DeviceName);
 893             }
 894         }
 895         i++;
 896         if(i==2)
 897         {
 898             break;
 899         }
 900     }
 901     if(i==1)//只有一个显示器,不能进行模式设置.
 902     {
 903         return FALSE;
 904     }
 905 
 906     dvm1.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_POSITION ;
 907     dvm2.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_POSITION ;
 908     //dvm2=dvm1;
 909     dvm2.dmPelsHeight=dvm1.dmPelsHeight;
 910     dvm2.dmPelsWidth=dvm1.dmPelsWidth;
 911     switch(iType)
 912     {
 913     case DISPLAY_TYPE_SINGLE:
 914         dvm2.dmPelsHeight=0;//设置成单显示器.
 915         dvm2.dmPelsWidth=0;
 916         break;
 917     case DISPLAY_TYPE_CLONE://当两个显示器同时有效时,偏移不重叠.克隆模式就不能直接设置.
 918         //dvm2.dmPelsHeight=0;
 919         //dvm2.dmPelsWidth=0;
 920         break;
 921     case DISPLAY_TYPE_EXTEND:
 922         nOffset=dvm1.dmPelsWidth;//强制横向向右扩展,
 923         break;
 924     default:
 925         break;
 926     }
 927     dvm1.dmPosition.x=0;
 928     dvm1.dmPosition.y=0;
 929     dvm2.dmPosition.x=nOffset;
 930     dvm2.dmPosition.y=0;
 931     
 932     CString Str;
 933     Str.Format(TEXT("Pri: %s (%d,%d,%d,%d)
"),PriDevName,dvm1.dmPosition.x,dvm1.dmPosition.y,
 934         dvm1.dmPelsWidth,dvm1.dmPelsHeight);
 935     OutputDebugString(Str);
 936     Str.Format(TEXT("Add: %s (%d,%d,%d,%d)
"),AddDevName,dvm2.dmPosition.x,dvm2.dmPosition.y,
 937         dvm2.dmPelsWidth,dvm2.dmPelsHeight);
 938     OutputDebugString(Str);
 939 
 940     if(ExChange && (iType==DISPLAY_TYPE_EXTEND || iType==DISPLAY_TYPE_SINGLE))//如果需要交换显示,则改变主显示器
 941     {
 942         ChangeDisplaySettingsEx(PriDevName, &dvm2, NULL, CDS_NORESET | CDS_UPDATEREGISTRY , 0);
 943         ChangeDisplaySettingsEx(AddDevName, &dvm1, NULL, CDS_SET_PRIMARY | CDS_NORESET | CDS_UPDATEREGISTRY, 0);
 944     }
 945     else
 946     {
 947         ChangeDisplaySettingsEx(PriDevName, &dvm1, NULL, CDS_SET_PRIMARY | CDS_NORESET | CDS_UPDATEREGISTRY, 0);
 948         ChangeDisplaySettingsEx(AddDevName, &dvm2, NULL, CDS_NORESET | CDS_UPDATEREGISTRY , 0);
 949     }
 950     
 951     ChangeDisplaySettingsEx(NULL, NULL, NULL, 0, 0);//使有效
 952 
 953     return TRUE;
 954 }
 955 
 956 int CDisplayInfo::AnalyCardType(LPCTSTR cardStr)
 957 {
 958     if(cardStr==NULL)
 959     {
 960         return 0;
 961     }
 962     OutputDebugString(cardStr);
 963     TCHAR buf[0x100]={0};
 964     _tcscpy_s(buf,0x100,cardStr);
 965     _tcsupr_s(buf,100);
 966     if(_tcsstr(buf,TEXT("ATI")))
 967     {
 968         return 1;
 969     }
 970     else if(_tcsstr(buf,TEXT("NVIDIA")))
 971     {
 972         return 2;
 973     }
 974     else
 975     {
 976         return 3;
 977     }
 978 }
 979 
 980 //功能:获得显卡类型,ATI=1,NVDIA.=2...
 981 int CDisplayInfo::GetDisplayCardType()
 982 {
 983     DISPLAY_DEVICE DispDev; 
 984     TCHAR szSaveDeviceName[0x60];
 985     BOOL bRet = TRUE;
 986 
 987     
 988 
 989     ZeroMemory(&DispDev, sizeof(DISPLAY_DEVICE));
 990     DispDev.cb = sizeof(DISPLAY_DEVICE); 
 991 
 992     CString Str,outStr;
 993     int i=0;
 994     BOOL bRet2=TRUE;
 995     DWORD erro=0;
 996     while(bRet)
 997     {
 998         bRet=EnumDisplayDevices(NULL,i,&DispDev,0);
 999         if(bRet)
1000         {
1001             memset(szSaveDeviceName,0,0x60);
1002             lstrcpy(szSaveDeviceName, DispDev.DeviceName);
1003             bRet2=TRUE;
1004             OutputDebugString(szSaveDeviceName);
1005             OutputDebugString(DispDev.DeviceString);
1006             return AnalyCardType(DispDev.DeviceString);
1007         }
1008         i++;
1009     }
1010     return 0;
1011 }
1012 
1013 //功能:返回系统版本号
1014 //参数:winVer返回版本号.
1015 BOOL CDisplayInfo::GetOSVersion( WinVerDef* winVer )
1016 {
1017     OSVERSIONINFOEX osversionInfo;
1018     ZeroMemory( &osversionInfo, sizeof(osversionInfo) );
1019     osversionInfo.dwOSVersionInfoSize = sizeof(osversionInfo);
1020     *winVer = WIN_VER_UNKNOWN;
1021 
1022     /*BOOL bOsVersionInfoEx=FALSE;//是否是早期版本,FALSE为早期版本,TRUE为校新版本.
1023     if( !(bOsVersionInfoEx = GetVersionEx ((OSVERSIONINFO *) &osversionInfo)) )
1024     {
1025         osversionInfo.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);//更早期系统需要从注册表中读取一些版本信息.
1026         if (! GetVersionEx ( (OSVERSIONINFO *) &osversionInfo) ) 
1027             return FALSE;
1028     }*/
1029 
1030      if ( NULL == winVer || FALSE == GetVersionEx((LPOSVERSIONINFO)&osversionInfo) )
1031      {
1032          return FALSE;
1033      }
1034     switch( osversionInfo.dwMajorVersion )
1035     {
1036     case WIN_MAJOR_NT4_ME_98_95:
1037         switch( osversionInfo.dwMinorVersion )
1038         {
1039         case WIN_MINOR_2K8_VISTA_2K_NT4_95:
1040             if ( VER_PLATFORM_WIN32_NT == osversionInfo.dwPlatformId )
1041             {
1042                 OutputDebugString(TEXT("WIN_VER_NT4"));
1043                 *winVer = WIN_VER_NT4;
1044             }
1045             else
1046             {
1047                 OutputDebugString(TEXT("WIN_VER_95"));
1048                 *winVer = WIN_VER_95;
1049             }
1050             break;
1051         case WIN_MINOR_98:
1052             OutputDebugString(TEXT("WIN_VER_98"));
1053             *winVer = WIN_VER_98;
1054             break;
1055         case WIN_MINOR_ME:
1056             *winVer = WIN_VER_ME;
1057             OutputDebugString(TEXT("WIN_VER_ME"));
1058             break;
1059         default:
1060             break;
1061         }
1062         break;
1063     case WIN_MAJOR_2K3R2_2K3_XP_2K:
1064         switch( osversionInfo.dwMinorVersion )
1065         {
1066         case WIN_MINOR_2K8_VISTA_2K_NT4_95:
1067             *winVer = WIN_VER_2K;
1068             OutputDebugString(TEXT("WIN_VER_2K"));
1069             break;
1070         case WIN_MINOR_WIN7_2K8R2_XP:
1071             *winVer = WIN_VER_XP;
1072             OutputDebugString(TEXT("WIN_VER_XP"));
1073             break;
1074         case WIN_MINOR_2K3R2_2K3_XP64:
1075             if ( VER_NT_WORKSTATION == osversionInfo.wProductType )
1076             {
1077                 *winVer = WIN_VER_XP64;
1078                 OutputDebugString(TEXT("WIN_VER_XP64"));
1079                 break;
1080             }
1081             if ( 0 != GetSystemMetrics( SM_SERVERR2 ) )
1082             {
1083                 *winVer = WIN_VER_2K3R2;
1084                 OutputDebugString(TEXT("WIN_VER_2K3_R2"));
1085             }
1086             else
1087             {
1088                 *winVer = WIN_VER_2K3;
1089                 OutputDebugString(TEXT("WIN_VER_2K3"));
1090             }
1091             break;
1092         default:
1093             break;
1094         }
1095         break;
1096     case WIN_MAJOR_WIN7_2K8R2_2K8_VISTA:
1097         switch( osversionInfo.dwMinorVersion )
1098         {
1099         case WIN_MINOR_2K8_VISTA_2K_NT4_95:
1100             if ( VER_NT_WORKSTATION == osversionInfo.wProductType )
1101             {
1102                 OutputDebugString(TEXT("WIN_VER_VISTA"));
1103                 *winVer = WIN_VER_VISTA;
1104             }
1105             else
1106             {
1107                 *winVer = WIN_VER_2K8;
1108                 OutputDebugString(TEXT("WIN_VER_2K8"));
1109             }
1110             break;
1111         case WIN_MINOR_WIN7_2K8R2_XP:
1112             if ( VER_NT_WORKSTATION == osversionInfo.wProductType )
1113             {
1114                 *winVer = WIN_VER_WIN7;
1115                 OutputDebugString(TEXT("WIN_VER_WIN7"));
1116             }
1117             else
1118             {
1119                 *winVer = WIN_VER_2K8R2;
1120                 OutputDebugString(TEXT("WIN_VER_2K8_R2"));
1121             }
1122             break;
1123         default:
1124             break;
1125         }
1126         break;
1127     default:
1128         break;
1129     }
1130     return TRUE;
1131 }
1132 
1133 //功能:判断当前操作系统是否比sepcVer指定的系统更新
1134 BOOL CDisplayInfo::IsOlderSystem( WinVerDef specVer, INT* iResult )
1135 {
1136     if ( NULL == iResult )
1137     {
1138         return FALSE;
1139     }
1140     WinVerDef currVer = WIN_VER_UNKNOWN;
1141     if ( FALSE == GetOSVersion( &currVer ) || WIN_VER_UNKNOWN == currVer )
1142     {
1143         return FALSE;
1144     }
1145     else
1146     {
1147         *iResult = currVer - specVer;
1148     }
1149     return TRUE;
1150 }

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原作者的下载包网址：http://download.csdn.net/detail/phmatthaus/9337081

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原文地址：https://www.cnblogs.com/fuge/p/5317051.html