关于分辨率的 unit Unit1;interfaceuses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls;type TfrmMain = class(TForm) btn800600: TButton; btn640480: TButton; procedure btn640480Click(Sender: TObject); procedure btn800600Click(Sender: TObject); private { Private declarations } public { Public declarations } function DynamicResolution(X, Y: word): BOOL; end;var frmMain: TfrmMain;implementation{$R *.dfm}function TfrmMain.DynamicResolution(X, Y: word): BOOL; var lpDevMode: TDeviceMode; begin Result := EnumDisplaySettings(nil, 0, lpDevMode); if Result then begin lpDevMode.dmFields := DM_PELSWIDTH Or DM_PELSHEIGHT; lpDevMode.dmPelsWidth := X; lpDevMode.dmPelsHeight := Y; Result := ChangeDisplaySettings(lpDevMode, 0) = DISP_CHANGE_SUCCESSFUL; end; end;procedure TfrmMain.btn640480Click(Sender: TObject); begin if DynamicResolution(640, 480) then begin ShowMessage('现在的分辨率是640*480'); end; end;procedure TfrmMain.btn800600Click(Sender: TObject); begin if DynamicResolution(800, 600) then begin ShowMessage('现在的分辨率是800*600'); end; end;end.
unit Unit1;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;type
TfrmMain = class(TForm)
btn800600: TButton;
btn640480: TButton;
procedure btn640480Click(Sender: TObject);
procedure btn800600Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
function DynamicResolution(X, Y: word): BOOL;
end;var
frmMain: TfrmMain;implementation{$R *.dfm}function TfrmMain.DynamicResolution(X, Y: word): BOOL;
var
lpDevMode: TDeviceMode;
begin
Result := EnumDisplaySettings(nil, 0, lpDevMode);
if Result then
begin
lpDevMode.dmFields := DM_PELSWIDTH Or DM_PELSHEIGHT;
lpDevMode.dmPelsWidth := X;
lpDevMode.dmPelsHeight := Y;
Result := ChangeDisplaySettings(lpDevMode, 0) = DISP_CHANGE_SUCCESSFUL;
end;
end;procedure TfrmMain.btn640480Click(Sender: TObject);
begin
if DynamicResolution(640, 480) then
begin
ShowMessage('现在的分辨率是640*480');
end;
end;procedure TfrmMain.btn800600Click(Sender: TObject);
begin
if DynamicResolution(800, 600) then
begin
ShowMessage('现在的分辨率是800*600');
end;
end;end.
mouse_event
keybd_event
var
hdc: THandle;
color: COLORREF;
R,G,B: byte;
begin
hdc:= windows.GetDC(0);//0就是桌面的,如果是窗体就传self.handle
color:= windows.GetPixel(hdc,100,100);
R:= windows.GetRValue(color);
G:= windows.GetGValue(color);
B:= windows.GetBValue(color);
end;delphi帮助里用法都写的比较明白的。看看把
这个似乎没有提到
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其实你这个问题非得用API吗?其实的方法也可以做得到啊。
我不知道
px = Form1.Left;
py = Fomr1.Top;
这样行吗?
SystemParametersInfo
EnumDisplaySettings
mouse_event / keybd_event