怎样自动获取电脑所能支持的分辨率、刷新率、色彩度等参数？？？(100分)

[][]怎样自动获取电脑所能支持的分辨率、刷新率、色彩度等参数？？？

procedure GetVideoModes(ModeList: TStringList);

var
i, j: integer;
MoreModes,
AddMode: boolean;
dm: TDeviceMode;
Mode: string;
begin
ModeList.Clear;
MoreModes := True;
Mode := ';
i := 0;
while MoreModes do
begin
MoreModes := EnumDisplaySettings(nil, i, dm);
Mode := IntToStr(dm.dmBitsPerPel) + ' Bits Per Pixel ' +
IntToStr(dm.dmPelsWidth) + ' x ' +
IntToStr(dm.dmPelsHeight);
AddMode := True;
{ Check to make sure this mode is not already in the list. }
for j := 0 to ModeList.Count-1 do
if Mode = ModeList[j] then
AddMode := False;
if AddMode then
ModeList.Add(Mode);
Inc(i);
end;
end;

var
x:longint;
a:string;
begin
x := GetSystemMetrics(SM_CXSCREEN);
Str(x,a);
Label1.Caption := '显示器水平分辨率' + a;
x := GetSystemMetrics(SM_CYSCREEN);
Str(x,a);
Label2.Caption := '显示器垂直分辨率' + a;
end;

严重同意tseug的方法

多人接受答案了。