拍摄Delphi 7中特定区域的屏幕截图 [英] Take a screenshot of a particular area in Delphi 7

问题描述

我有一个delphi形式的面板，其中包含图片，标签和其他内容。我需要在面板区域中截屏。
如何执行此操作？

I have a panel in the form delphi that contains pictures, labels and others. I need to take screenshots in the panel area. How can I perform this ?

推荐答案

假设您有一个名为Panel1的面板要截图，一个名为的按钮Button1进行屏幕截图，Image1显示屏幕截图，下面是可以使用的简单代码：

Assuming that you have a panel named Panel1 to be screenshot, a button named Button1 to do the screen shoot, and Image1 to display the screenshot, here is simple code you can use:

procedure TForm1.Button3Click(Sender: TObject);
var
  bitmap: TBitmap;
  dc: HDC;
begin
  bitmap := TBitmap.Create();
  try
    dc := GetDC(Panel1.Handle);
    try
      bitmap.Width := Panel1.Width;
      bitmap.Height := Panel1.Height;
      BitBlt(
        bitmap.Canvas.Handle, 0, 0, Panel1.Width, Panel1.Height,
        dc, 0, 0,
        SRCCOPY
      );
      Image1.Picture.Bitmap.Assign(bitmap);
      // bitmap.SaveToFile('c:\filename.bmp');
    finally
      ReleaseDC(panel1.Handle, dc);
    end;
  finally
    bitmap.Free;
  end;
end;

希望有帮助。

这篇关于拍摄Delphi 7中特定区域的屏幕截图的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！