WinAPI: GetSystemMetrics 获取系统度量等数值信息

声明:

---

GetSystemMetrics(
  nIndex: Integer {参数, 详见下表}
): Integer;

举例 - 获取屏幕分辨率:

---

var
  cx,cy: Integer;
begin
  {通过 GetSystemMetrics 函数获取屏幕分辨率}
  cx := GetSystemMetrics(SM_CXSCREEN);
  cy := GetSystemMetrics(SM_CYSCREEN);
  ShowMessageFmt('Width:%d; Height:%d', [cx,cy]);

  {通过 Screen 对象获取屏幕分辨率}
  cx := Screen.Width;
  cy := Screen.Height;
  ShowMessageFmt('Width:%d; Height:%d', [cx,cy]);
end;

可选参数:

---

SM_CXSCREEN          = 0;
SM_CYSCREEN          = 1;
SM_CXVSCROLL         = 2;
SM_CYHSCROLL         = 3;
SM_CYCAPTION         = 4;
SM_CXBORDER          = 5;
SM_CYBORDER          = 6;
SM_CXDLGFRAME        = 7;
SM_CYDLGFRAME        = 8;
SM_CYVTHUMB          = 9;
SM_CXHTHUMB          = 10;
SM_CXICON            = 11;
SM_CYICON            = 12;
SM_CXCURSOR          = 13;
SM_CYCURSOR          = 14;
SM_CYMENU            = 15;
SM_CXFULLSCREEN      = $10;
SM_CYFULLSCREEN      = 17;
SM_CYKANJIWINDOW     = 18;
SM_MOUSEPRESENT      = 19;
SM_CYVSCROLL         = 20;
SM_CXHSCROLL         = 21;
SM_DEBUG             = 22;
SM_SWAPBUTTON        = 23;
SM_RESERVED1         = 24;
SM_RESERVED2         = 25;
SM_RESERVED3         = 26;
SM_RESERVED4         = 27;
SM_CXMIN             = 28;
SM_CYMIN             = 29;
SM_CXSIZE            = 30;
SM_CYSIZE            = 31;
SM_CXFRAME           = $20;
SM_CYFRAME           = 33;
SM_CXMINTRACK        = 34;
SM_CYMINTRACK        = 35;
SM_CXDOUBLECLK       = 36;
SM_CYDOUBLECLK       = 37;
SM_CXICONSPACING     = 38;
SM_CYICONSPACING     = 39;
SM_MENUDROPALIGNMENT = 40;
SM_PENWINDOWS        = 41;
SM_DBCSENABLED       = 42;
SM_CMOUSEBUTTONS     = 43;
SM_SECURE            = 44;
SM_CXEDGE            = 45;
SM_CYEDGE            = 46;
SM_CXMINSPACING      = 47;
SM_CYMINSPACING      = 48;
SM_CXSMICON          = 49;
SM_CYSMICON          = 50;
SM_CYSMCAPTION       = 51;
SM_CXSMSIZE          = 52;
SM_CYSMSIZE          = 53;
SM_CXMENUSIZE        = 54;
SM_CYMENUSIZE        = 55;
SM_ARRANGE           = 56;
SM_CXMINIMIZED       = 57;
SM_CYMINIMIZED       = 58;
SM_CXMAXTRACK        = 59;
SM_CYMAXTRACK        = 60;
SM_CXMAXIMIZED       = 61;
SM_CYMAXIMIZED       = 62;
SM_NETWORK           = 63;
SM_CLEANBOOT         = 67;
SM_CXDRAG            = 68;
SM_CYDRAG            = 69;
SM_SHOWSOUNDS        = 70;
SM_CXMENUCHECK       = 71;
SM_CYMENUCHECK       = 72;
SM_SLOWMACHINE       = 73;
SM_MIDEASTENABLED    = 74;
SM_MOUSEWHEELPRESENT = 75;
SM_CMETRICS          = 76;
SM_XVIRTUALSCREEN    = 76;
SM_YVIRTUALSCREEN    = 77;
SM_CXVIRTUALSCREEN   = 78;
SM_CYVIRTUALSCREEN   = 79;
SM_CMONITORS         = 80;
SM_SAMEDISPLAYFORMAT = 81;
SM_IMMENABLED        = 82;
SM_CXFOCUSBORDER     = 83;
SM_CYFOCUSBORDER     = 84;
SM_REMOTESESSION     = $1000;

参数详解:

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