📄 screencapture.txt
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procedure TForm1.Timer1Timer(Sender:TObject);//抓取屏幕,并保存到Image控件中
var
Fullscreen:Tbitmap;
FullscreenCanvas:TCanvas;
dc:HDC;
begin
Fullscreen:=TBitmap.Create;
//创建一个BITMAP来存放图象
Fullscreen.Width:=screen.width;
Fullscreen.Height:=screen.Height;
DC:=GetDC(0); //取得屏幕的DC,参数0指的是屏幕
FullscreenCanvas:=TCanvas.Create;
//创建一个CANVAS对象
FullscreenCanvas.Handle:=DC;
Fullscreen.Canvas.CopyRect(Rect(0,0,screen.Width,screen.Height),
fullscreenCanvas,Rect(0,0,Screen.Width,Screen.Height));
//把整个屏幕复制到BITMAP中
FullscreenCanvas.Free;
//释放CANVAS对象
ReleaseDC(0,DC); //释放DC
//*******************************
image1.picture.Bitmap:=fullscreen; //拷贝下的图象赋给IMAGE对象
image1.Width:=fullscreen.Width;
image1.Height:=fullscreen.Height;
fullscreen.free; //释放bitmap
form1.WindowState:=wsNormal; //复原窗口状态
form1.show; //显示窗口
messagebeep(1); //BEEP叫一声,报告图象已经截取好了。
end;
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