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  • VB用API实现各种对话框(总结)(转载)

    ''标准对话框(SmDialog)
       ''
       Option Explicit
       ''''定义一个全局变量,用于保存字体的各种属性
       Public Type SmFontAttr
       FontName As String ''字体名
       FontSize As Integer ''字体大小
       FontBod As Boolean ''是否黑体
       FontItalic As Boolean ''是否斜体
       FontUnderLine As Boolean ''是否下划线
       FontStrikeou As Boolean
       FontColor As Long
       WinHwnd As Long
       End Type
       Dim M_GetFont As SmFontAttr
       ''''**系统常量------------------------------------------
       Private Const SWP_NOOWNERZORDER = &H200
       Private Const SWP_HIDEWINDOW = &H80
       Private Const SWP_NOACTIVATE = &H10
       Private Const SWP_NOMOVE = &H2
       Private Const SWP_NOREDRAW = &H8
       Private Const SWP_NOREPOSITION = SWP_NOOWNERZORDER
       Private Const SWP_NOSIZE = &H1
       Private Const SWP_NOZORDER = &H4
       Private Const SWP_SHOWWINDOW = &H40
       Private Const RESOURCETYPE_DISK = &H1 ''网络驱动器
       Private Const RESOURCETYPE_PRINT = &H2 ''网络打印机
       ''/------------------------------------------------------------
       Private Const NoError = 0
       Private Const CSIDL_DESKTOP = &H0
       Private Const CSIDL_PROGRAMS = &H2
       Private Const CSIDL_CONTROLS = &H3
       Private Const CSIDL_PRINTERS = &H4
       Private Const CSIDL_PERSONAL = &H5
       Private Const CSIDL_FAVORITES = &H6
       Private Const CSIDL_STARTUP = &H7
       Private Const CSIDL_RECENT = &H8
       Private Const CSIDL_SENDTO = &H9
       Private Const CSIDL_BITBUCKET = &HA
       Private Const CSIDL_STARTMENU = &HB
       Private Const CSIDL_DESKTOPDIRECTORY = &H10
       Private Const CSIDL_DRIVES = &H11
       Private Const CSIDL_NETWORK = &H12
       Private Const CSIDL_NETHOOD = &H13
       Private Const CSIDL_FONTS = &H14
       Private Const CSIDL_TEMPLATES = &H15
       Private Const LF_FACESIZE = 32
       Private Const MAX_PATH = 260
       Private Const CF_INITTOLOGFONTSTRUCT = &H40&
       Private Const CF_FIXEDPITCHONLY = &H4000&
       Private Const CF_EFFECTS = &H100&
       Private Const ITALIC_FONTTYPE = &H200
       Private Const BOLD_FONTTYPE = &H100
       Private Const CF_NOFACESEL = &H80000
       Private Const CF_NOSCRIPTSEL = &H800000
       Private Const CF_PRINTERFONTS = &H2
       Private Const CF_SCALABLEONLY = &H20000
       Private Const CF_SCREENFONTS = &H1
       Private Const CF_SHOWHELP = &H4&
       Private Const CF_BOTH = (CF_SCREENFONTS Or CF_PRINTERFONTS)
       ''/------------------------------------------
       Private Type CHOOSECOLOR
       lStructSize As Long
       hwndOwner As Long
       hInstance As Long
       rgbResult As Long
       lpCustColors As String
       flags As Long
       lCustData As Long
       lpfnHook As Long
       lpTemplateName As String
       End Type
       Private Type OPENFILENAME
       lStructSize As Long
       hwndOwner As Long
       hInstance As Long
       lpstrFilter As String
       lpstrCustomFilter As String
       nMaxCustFilter As Long
       nFilterIndex As Long
       lpstrFile As String
       nMaxFile As Long
       lpstrFileTitle As String
       nMaxFileTitle As Long
       lpstrInitialDir As String
       lpstrTitle As String
       flags As Long
       nFileOffset As Integer
       nFileExtension As Integer
       lpstrDefExt As String
       lCustData As Long
       lpfnHook As Long
       lpTemplateName As String
       End Type
       ''/-----------------------------------------------------------
       Private Type LOGFONT
       lfHeight As Long
       lfWidth As Long
       lfEscapement As Long
       lfOrientation As Long
       lfWeight As Long
       lfItalic As Byte
       lfUnderline As Byte
       lfStrikeOut As Byte
       lfCharSet As Byte
       lfOutPrecision As Byte
       lfClipPrecision As Byte
       lfQuality As Byte
       lfPitchAndFamily As Byte
       lfFaceName As String * LF_FACESIZE
       End Type
       Private Type CHOOSEFONT
       lStructSize As Long
       hwndOwner As Long
       hdc As Long
       lpLogFont As Long
       iPointSize As Long
       flags As Long
       rgbColors As Long
       lCustData As Long
       lpfnHook As Long
       lpTemplateName As String
       hInstance As Long
       lpszStyle As String
       nFontType As Integer
       MISSING_ALIGNMENT As Integer
       nSizeMin As Long
       nSizeMax As Long
       End Type
       ''/--------------
       Private Type SHITEMID
       cb As Long
       abID() As Byte
       End Type
       Private Type ITEMIDLIST
       mkid As SHITEMID
       End Type
       ''/------------------------------------------
       Private Declare Function SHGetPathFromIDList Lib "shell32.dll" Alias
       "SHGetPathFromIDListA" _
       (ByVal Pidl As Long, ByVal pszPath As String) As Long
       Private Declare Function SHGetSpecialFolderLocation Lib "shell32.dll" _
       (ByVal hwndOwner As Long, ByVal nFolder As Long, _
       Pidl As ITEMIDLIST) As Long
       ''/------------------------------------------
       Private Declare Function GetSaveFileName Lib "comdlg32.dll" Alias "GetSaveFileNameA"
       (pOpenfilename As OPENFILENAME) As Long
       Private Declare Function GetOpenFileName Lib "comdlg32.dll" Alias "GetOpenFileNameA"
       (pOpenfilename As OPENFILENAME) As Long
       Private Declare Function CHOOSECOLOR Lib "comdlg32.dll" Alias "ChooseColorA"
       (pChoosecolor As CHOOSECOLOR) As Long
       Private Declare Function WNetConnectionDialog Lib "mpr.dll" (ByVal hWnd As Long,
       ByVal dwType As Long) As Long
       Private Declare Function CHOOSEFONT Lib "comdlg32.dll" Alias "ChooseFontA"
       (pChooseFont As CHOOSEFONT) As Long
       ''/=======显示断开网络资源对话框============
       Private Declare Function WNetDisconnectDialog Lib "mpr.dll" _
       (ByVal hWnd As Long, ByVal dwType As Long) As Long
       ''/================================================================================
       Private Declare Sub CoTaskMemFree Lib "ole32.dll" (ByVal pv As Long)
       Private Declare Function SHBrowseForFolder Lib "shell32.dll" Alias
       "SHBrowseForFolderA" _
       (lpBrowseInfo As BROWSEINFO) As Long
       Private Type BROWSEINFO
       hOwner As Long
       pidlRoot As Long
       pszDisplayName As String
       lpszTitle As String
       ulFlags As Long
       lpfn As Long
       lParam As Long
       iImage As Long
       End Type
       ''/结构说明: _
       hOwner 调用这个对话框的窗口的句柄 _
       pidlRoot 指向你希望浏览的最上面的文件夹的符列表 _
       pszDisplayName 用于保存用户所选择的文件夹的显示名的缓冲区 _
       lpszTitle 浏览对话框的标题 _
       ulFlags 决定浏览什么的标志(见下) _
       lpfn 当事件发生时对话框调用的回调函数的地址.可将它设定为NULL _
       lparam 若定义了回调函数,则为传递给回调函数的值 _
       iImage As Long 保存所选文件夹映像索引的缓冲区 _
       ulFlags参数(见下:)
       Private Const BIF_RETURNONLYFSDIRS = &H1 ''仅允许浏览文件系统文件夹
       Private Const BIF_DONTGOBELOWDOMAIN = &H2 ''利用这个值强制用户仪在网上邻居的域级别
       中
       Private Const BIF_STATUSTEXT = &H4 ''在选择对话中显示状态栏
       Private Const BIF_RETURNFSANCESTORS = &H8 ''返回文件系统祖先
       Private Const BIF_BROWSEFORCOMPUTER = &H1000 ''允许浏览计算机
       Private Const BIF_BROWSEFORPRINTER = &H2000 ''允许游览打印机文件夹
       ''/--------------------------------------------------------------------------------
       Dim FontInfo As SmFontAttr ''字体
       ''/--------------------------------------------------------------------------------
       Private Function GetFolderValue(wIdx As Integer) As Long
       If wIdx < 2 Then
       GetFolderValue = 0
       ElseIf wIdx < 12 Then
       GetFolderValue = wIdx
       Else
       GetFolderValue = wIdx + 4
       End If
       End Function
       ''
       Private Function GetReturnType() As Long
       Dim dwRtn As Long
       dwRtn = dwRtn Or BIF_RETURNONLYFSDIRS
       GetReturnType = dwRtn
       End Function
       ''
       ''文件夹选择对话框
       ''函数:SaveFile
       ''参数:Title 设置对话框的标签.
       '' hWnd 调用此函数的HWND
       '' FolderID SmBrowFolder枚举(默认:我的电脑).
       ''返回值:String 文件夹路径.
       ''例子:
       Public Function GetFolder(Optional Title As String, _
       Optional hWnd As Long, _
       Optional FolderID As SmBrowFolder = MyComputer) As String
       Dim Bi As BROWSEINFO
       Dim Pidl As Long
       Dim Folder As String
       Dim IDL As ITEMIDLIST
       Dim nFolder As Long
       Dim ReturnFol As String
       Dim Fid As Integer
       Fid = FolderID
       Folder = String$(255, Chr$(0))
       With Bi
       .hOwner = hWnd
       nFolder = GetFolderValue(Fid)
       If SHGetSpecialFolderLocation(ByVal hWnd, ByVal nFolder, IDL) = NoError Then
       .pidlRoot = IDL.mkid.cb
       End If
       .pszDisplayName = String$(MAX_PATH, Fid)
       If Len(Title) > 0 Then
       .lpszTitle = Title & Chr$(0)
       Else
       .lpszTitle = "请选择文件夹:" & Chr$(0)
       End If
       .ulFlags = GetReturnType()
       End With
       Pidl = SHBrowseForFolder(Bi)
       ''/返回所选的文件夹路径
       If SHGetPathFromIDList(ByVal Pidl, ByVal Folder) Then
       ReturnFol = Left$(Folder, InStr(Folder, Chr$(0)) - 1)
       If Right$(Trim$(ReturnFol), 1) <> "\" Then ReturnFol = ReturnFol & "\"
       GetFolder = ReturnFol
       Else
       GetFolder = ""
       End If
       End Function
       ''
       ''文件保存对话框
       ''函数:SaveFile
       ''参数:WinHwnd 调用此函数的HWND
       '' BoxLabel 设置对话框的标签.
       '' StartPath 设置初始化路径.
       '' FilterStr 文件过滤.
       '' Flag 标志.(参考MSDN)
       ''返回值:String 文件名.
       ''例子:
       Public Function SaveFile(WinHwnd As Long, _
       Optional BoxLabel As String = "", _
       Optional StartPath As String = "", _
       Optional FilterStr = "*.*|*.*", _
       Optional Flag As Variant = &H4 Or &H200000) As String
       Dim Rc As Long
       Dim pOpenfilename As OPENFILENAME
       Dim Fstr1() As String
       Dim Fstr As String
       Dim I As Long
       Const MAX_Buffer_LENGTH = 256
       On Error Resume Next
       If Len(Trim$(StartPath)) > 0 Then
       If Right$(StartPath, 1) <> "\" Then StartPath = StartPath & "\"
       If Dir$(StartPath, vbDirectory + vbHidden) = "" Then
       StartPath = App.Path
       End If
       Else
       StartPath = App.Path
       End If
       If Len(Trim$(FilterStr)) = 0 Then
       Fstr = "*.*|*.*"
       End If
       Fstr1 = Split(FilterStr, "|")
       For I = 0 To UBound(Fstr1)
       Fstr = Fstr & Fstr1(I) & vbNullChar
       Next
       ''/--------------------------------------------------
       With pOpenfilename
       .hwndOwner = WinHwnd
       .hInstance = App.hInstance
       .lpstrTitle = BoxLabel
       .lpstrInitialDir = StartPath
       .lpstrFilter = Fstr
       .nFilterIndex = 1
       .lpstrDefExt = vbNullChar & vbNullChar
       .lpstrFile = String(MAX_Buffer_LENGTH, 0)
       .nMaxFile = MAX_Buffer_LENGTH - 1
       .lpstrFileTitle = .lpstrFile
       .nMaxFileTitle = MAX_Buffer_LENGTH
       .lStructSize = Len(pOpenfilename)
       .flags = Flag
       End With
       Rc = GetSaveFileName(pOpenfilename)
       If Rc Then
       SaveFile = Left$(pOpenfilename.lpstrFile, pOpenfilename.nMaxFile)
       Else
       SaveFile = ""
       End If
       End Function
       ''
       ''文件打开对话框
       ''函数:OpenFile
       ''参数:WinHwnd 调用此函数的HWND
       '' BoxLabel 设置对话框的标签.
       '' StartPath 设置初始化路径.
       '' FilterStr 文件过滤.
       '' Flag 标志.(参考MSDN)
       ''返回值:String 文件名.
       ''例子:
       Public Function OpenFile(WinHwnd As Long, _
       Optional BoxLabel As String = "", _
       Optional StartPath As String = "", _
       Optional FilterStr = "*.*|*.*", _
       Optional Flag As Variant = &H8 Or &H200000) As String
       Dim Rc As Long
       Dim pOpenfilename As OPENFILENAME
       Dim Fstr1() As String
       Dim Fstr As String
       Dim I As Long
       Const MAX_Buffer_LENGTH = 256
       On Error Resume Next
       If Len(Trim$(StartPath)) > 0 Then
       If Right$(StartPath, 1) <> "\" Then StartPath = StartPath & "\"
       If Dir$(StartPath, vbDirectory + vbHidden) = "" Then
       StartPath = App.Path
       End If
       Else
       StartPath = App.Path
       End If
       If Len(Trim$(FilterStr)) = 0 Then
       Fstr = "*.*|*.*"
       End If
       Fstr = ""
       Fstr1 = Split(FilterStr, "|")
       For I = 0 To UBound(Fstr1)
       Fstr = Fstr & Fstr1(I) & vbNullChar
       Next
       With pOpenfilename
       .hwndOwner = WinHwnd
       .hInstance = App.hInstance
       .lpstrTitle = BoxLabel
       .lpstrInitialDir = StartPath
       .lpstrFilter = Fstr
       .nFilterIndex = 1
       .lpstrDefExt = vbNullChar & vbNullChar
       .lpstrFile = String(MAX_Buffer_LENGTH, 0)
       .nMaxFile = MAX_Buffer_LENGTH - 1
       .lpstrFileTitle = .lpstrFile
       .nMaxFileTitle = MAX_Buffer_LENGTH
       .lStructSize = Len(pOpenfilename)
       .flags = Flag
       End With
       Rc = GetOpenFileName(pOpenfilename)
       If Rc Then
       OpenFile = Left$(pOpenfilename.lpstrFile, pOpenfilename.nMaxFile)
       Else
       OpenFile = ""
       End If
       End Function
       ''
       ''颜色对话框
       ''函数:GetColor
       ''参数:
       ''返回值:Long,用户所选择的颜色.
       ''例子:
       Public Function GetColor() As Long
       Dim Rc As Long
       Dim pChoosecolor As CHOOSECOLOR
       Dim CustomColor() As Byte
       With pChoosecolor
       .hwndOwner = 0
       .hInstance = App.hInstance
       .lpCustColors = StrConv(CustomColor, vbUnicode)
       .flags = 0
       .lStructSize = Len(pChoosecolor)
       End With
       Rc = CHOOSECOLOR(pChoosecolor)
       If Rc Then
       GetColor = pChoosecolor.rgbResult
       Else
       GetColor = -1
       End If
       End Function
       ''
       ''显示映射网络驱动器对话框
       ''函数:ConnectDisk
       ''参数:hWnd 调用此函数的窗口HWND.(ME.HWN)
       ''返回值:=0,成功,<>0,失败.
       ''例子:
       Public Function ConnectDisk(Optional hWnd As Long) As Long
       Dim Rc As Long
       If IsNumeric(hWnd) Then
       Rc = WNetConnectionDialog(hWnd, RESOURCETYPE_DISK)
       Else
       Rc = WNetConnectionDialog(0, RESOURCETYPE_DISK)
       End If
       ConnectDisk = Rc
       End Function
       ''
       ''显示映射网络打印机对话框
       ''函数:ConnectPrint
       ''参数:hWnd 调用此函数的窗口HWND.(ME.HWN)
       ''返回值:=0,成功,<>0,失败.
       ''例子:
       Public Function ConnectPrint(Optional hWnd As Long) As Long
       Dim Rc As Long
       If IsNumeric(hWnd) Then
       Rc = WNetConnectionDialog(hWnd, RESOURCETYPE_PRINT)
       Else
       Rc = WNetConnectionDialog(0, RESOURCETYPE_PRINT)
       End If
       End Function
       ''
       ''断开映射网络驱动器对话框
       ''函数:DisconnectDisk
       ''参数:hWnd 调用此函数的窗口HWND.(ME.HWN)
       ''返回值:=0,成功,<>0,失败.
       ''例子:
       Public Function DisconnectDisk(Optional hWnd As Long) As Long
       Dim Rc As Long
       If IsNumeric(hWnd) Then
       Rc = WNetDisconnectDialog(hWnd, RESOURCETYPE_DISK)
       Else
       Rc = WNetDisconnectDialog(0, RESOURCETYPE_DISK)
       End If
       End Function
       ''
       ''断开映射网络打印机关话框
       ''函数:DisconnectPrint
       ''参数:hWnd 调用此函数的窗口HWND.(ME.HWN)
       ''返回值:=0,成功,<>0,失败.
       ''例子:
       Public Function DisconnectPrint(Optional hWnd As Long) As Long
       Dim Rc As Long
       If IsNumeric(hWnd) Then
       Rc = WNetDisconnectDialog(hWnd, RESOURCETYPE_PRINT)
       Else
       Rc = WNetDisconnectDialog(0, RESOURCETYPE_PRINT)
       End If
       End Function
       ''
       ''字体选择对话框
       ''函数:GetFont
       ''参数:WinHwnd 调用此函数的窗口HWND.(ME.HWN)
       ''返回值:SmFontAttr 结构变量.
       ''例子:
       '' Dim mDialog As New SmDialog
       '' Dim mFontInfo As SmFontAttr
       '' mFontInfo = mDialog.GetFont(Me.hWnd)
       '' Set mDialog = Nothing
       Public Function GetFont(WinHwnd As Long) As SmFontAttr
       Dim Rc As Long
       Dim pChooseFont As CHOOSEFONT
       Dim pLogFont As LOGFONT
       With pLogFont
       .lfFaceName = StrConv(FontInfo.FontName, vbFromUnicode)
       .lfItalic = FontInfo.FontItalic
       .lfUnderline = FontInfo.FontUnderLine
       .lfStrikeOut = FontInfo.FontStrikeou
       End With
       With pChooseFont
       .hInstance = App.hInstance
       If IsNumeric(WinHwnd) Then .hwndOwner = WinHwnd
       .flags = CF_BOTH + CF_INITTOLOGFONTSTRUCT + CF_EFFECTS + CF_NOSCRIPTSEL
       If IsNumeric(FontInfo.FontSize) Then .iPointSize = FontInfo.FontSize *
       10
       If FontInfo.FontBod Then .nFontType = .nFontType + BOLD_FONTTYPE
       If IsNumeric(FontInfo.FontColor) Then .rgbColors = FontInfo.FontColor
       .lStructSize = Len(pChooseFont)
       .lpLogFont = VarPtr(pLogFont)
       End With
       Rc = CHOOSEFONT(pChooseFont)
       If Rc Then
       FontInfo.FontName = StrConv(pLogFont.lfFaceName, vbUnicode)
       FontInfo.FontName = Left$(FontInfo.FontName, InStr(FontInfo.FontName,
       vbNullChar) - 1)
       With pChooseFont
       FontInfo.FontSize = .iPointSize / 10 ''返回字体大
       小
       FontInfo.FontBod = (.nFontType And BOLD_FONTTYPE) ''返回是/否黑
       体
       FontInfo.FontItalic = (.nFontType And ITALIC_FONTTYPE) ''是/否斜体
       FontInfo.FontUnderLine = (pLogFont.lfUnderline) ''是/否下划线
       FontInfo.FontStrikeou = (pLogFont.lfStrikeOut)
       FontInfo.FontColor = .rgbColors
       End With
       End If
       GetFont = FontInfo
       End Function
       ''
       ''文件打开.(带预览文件功能)
       ''函数:BrowFile
       ''参数:Pattern 文件类型字符串,StarPath 开始路径,IsBrow 是否生成预览
       ''返回值:[确定] 文件路径.[取消] 空字符串
       ''例:Me.Caption =
       FileBrow.BrowFile("图片文件|*.JPG;*.GIF;*.BMP|媒体文件|*.DAT;*.MPG;*.SWF;*.MP3;*.MP2
       ")
       Public Function BrowFile(Optional Pattern As String = "*,*|*.*", _
       Optional StarPath As String = "C:\", _
       Optional IsBrow As Boolean = True) As String
       On Error Resume Next
       If Len(Trim$(Pattern)) = 0 Then Pattern = "*.*|*.*"
       P_FilePart = Pattern
       P_StarPath = StarPath
       P_IsBrow = IsBrow
       FrmBrowFile.Show 1
       BrowFile = P_FullFileName
       End Function
       ''
       ''显示网上邻居
       ''函数:ShowNetWork
       ''参数:FrmCap 窗口标题,Labction 提示标签名.
       ''返回值:[确定] 所选计算机名称.[取消] 空字符串.
       ''例:
       Public Function ShowNetWork(Optional FrmCap As String = "网上邻居", _
       Optional Labction As String = "选择计算机名称.") As
       String
       ShowLan.Hide
       ShowLan.Caption = FrmCap
       ShowLan.LabNNCaption = Labction
       ShowLan.Show 1
       ShowNetWork = P_NetReturnVal
       End Function

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  • 原文地址:https://www.cnblogs.com/bennylam/p/1591498.html
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