截取特定窗口的截图 - C ++ / Qt [英] Taking screenshot of a specific window - C++ / Qt

问题描述

在Qt中，如何截取特定窗口的屏幕截图（即假设我有记事本，我想要截取一个标题为Untitled - Notepad的窗口）？
在他们的屏幕截图示例代码中，他们显示如何截取整个桌面的屏幕截图：

In Qt, how do I take a screenshot of a specific window (i.e. suppose I had Notepad up and I wanted to take a screenshot of the window titled "Untitled - Notepad")? In their screenshot example code, they show how to take a screenshot of the entire desktop:

originalPixmap = QPixmap::grabWindow(QApplication::desktop()->winId());

如何获取特定窗口的winId（）（假设我知道窗口的标题） Qt？

How would I get the winId() for a specific window (assuming I knew the window's title) in Qt?

感谢

推荐答案

-具体。 winIds是Windows上的HWND，因此您可以在您给出的示例中调用 FindWindow（NULL，Untitled - Notepad）。

I'm pretty sure that's platform-specific. winIds are HWNDs on Windows, so you could call FindWindow(NULL, "Untitled - Notepad") in the example you gave.

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