屏幕捕获特定窗口 [英] Screen Capture Specific Window

问题描述

是否可以截取特定窗口（也可能是另一个进程）？

Is it possible to screen capture a specific window (also possibly of another process)?

目前我正在捕获特定显示器的整个桌面，真正想要的是捕获特定窗口的内容（不管它的位置）。

Currently I am capturing the entire desktop of a specific monitor, however what I truly want is to capture the content of a specific window (regardless of its position).

推荐答案

所有你需要的是获取处理窗口你要捕获和使用WinAPI函数PrintWindow例如：

Yes it is. All what you need is get handle to window which you want to capture and use WinAPI function PrintWindow for example:

// Get the window handle of calculator application.
HWND hWnd = ::FindWindow( 0, _T( "Calculator" ));

// Take screenshot.
PrintWindow( hWnd, getDC(hWnd), 0 );

这里有PrintWindow文档。

Here you have PrintWindow documentation.

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