Delphi图象截取编程示例(5)

1317612404

1317612404

2016-02-19 14:20

图老师小编精心整理的Delphi图象截取编程示例(5)希望大家喜欢,觉得好的亲们记得收藏起来哦!您的支持就是小编更新的动力~
 

  
     抓取窗体或控件图片,即要用到一个新的Form2,参见《Delphi图象截取编程示例(7)》
     在Main单元implementation的uses中添加Capture2。
    
  [Capture Windows or Controls]窗体或控件抓图的Action 事件

  procedure TMainForm.cptWindowsExecute(Sender: TObject);
  var p:TPoint; Handles:HWnd;
  begin
    Inc(CaptureNum,1);
    Application.Minimize ;
    Delay(500);
    FileName:='Capture'+IntTOStr(CaptureNum);
    FileName:=DefaultDirectory+FileName;
    with TForm2.Create(Application) do
    try
      if ShowModal=mrOK then
      begin
        CreateMDIChild(FileName,true);
        StatusBar.SimpleText := FileName;
        Delay(500);
        ABitmap:=TBitmap.Create ;
        GetCursorPos(P);
        Handles:=WindowFromPoint(P);
        ABitmap:=CaptureWindowImage(Handles);
        Child.Image1.Picture.Bitmap:=ABitmap;
        Child.ClientWidth := Child.Image1.Picture.Width ;
        Child.ClientHeight:= Child.Image1.Picture.Height;
        Child.HorzScrollBar.Range := Child.Image1.Picture.Width ;
        Child.VertScrollBar.Range := Child.Image1.Picture.Height;
        Child.Image1.Hint := 'Height:'+intToStr(child.Image1.Picture.Height)+'pixels'
                       + ' Width:'+intToStr(child.Image1.Picture.Width)+'pixels';
        ABitmap.Free ;
      end;
    finally
      Free;
      Application.Restore ;
    end;
  end;

(本文来源于图老师网站,更多请访问https://m.tulaoshi.com/bianchengyuyan/)

  
  抓取 ICON 图片,即要用到一个新的Form3,参见《Delphi图象截取编程示例(8)》
  在Main单元implementation的uses中添加Capture3。
  在Main单元添加私有过程CaptureICON :

  procedure TMainForm.CaptureICON; // [二十]
  begin
    with TForm3.Create(Application) do
    try
      if ShowModal = mrOK then
        with fRect do begin
          if (RightLeft)and(BottomTop) then begin
            Delay(300);
            ABitmap:=TBitmap.Create ;
            ABitmap.Assign(CaptureScreenRect(fRect));
            Child.Image1.Picture.Bitmap:=ABitmap;
            Child.HorzScrollBar.Range:=Child.Image1.Picture.Width;
            Child.VertScrollBar.Range:=Child.Image1.Picture.Height;
            ABitmap.Free;
          end else begin
            MessageDlg('边框选择错误,重试!',mtInformation,[mbOK],0);
            Child.Close ;
            Form3.Free ;
            exit;
          end;
        end;
    finally
      Free;
    end;
  end;

  [Capture ICON ] ICON 抓图的Action 事件
  procedure TMainForm.cptIconExecute(Sender: TObject);
  begin
    Application.Minimize ;
    Delay(400);
    Inc(CaptureNum,1);
    FileName:='Capture'+intToStr(CaptureNum);
    FileName:=DefaultDirectory+FileName;
    CreateMDIChild(FileName,true);
    StatusBar.SimpleText := FileName;
    CaptureICON;
    Child.ClientWidth := Child.Image1.Picture.Width ;
    Child.ClientHeight:= Child.Image1.Picture.Height;
    Child.HorzScrollBar.Range := Child.Image1.Picture.Width ;
    Child.VertScrollBar.Range := Child.Image1.Picture.Height;
    Child.Image1.Hint := 'Height:'+intToStr(child.Image1.Picture.Height)+'pixels'
                       + ' Width:'+intToStr(child.Image1.Picture.Width)+'pixels';
    Application.Restore ;
  end;

(本文来源于图老师网站,更多请访问https://m.tulaoshi.com/bianchengyuyan/)
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