高效获取windows桌面截图 [英] efficiently acquiring a screenshot of the windows desktop
本文介绍了高效获取windows桌面截图的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
是否有比下面的代码更有效的方式来获取 Windows 桌面的副本(使用 GDI 或任何其他库)
Is there a more efficient way of getting a copy of the windows desktop ( using GDI or any other library ) than the code below
HDC dcDesktop;
HDC dcMem;
HBITMAP hbmpMem;
HBITMAP hOriginal;
BITMAP bmpDesktopCopy;
dcDesktop = GetDC( GetDesktopWindow() );
dcMem = CreateCompatibleDC( dcDesktop );
hbmpMem = CreateCompatibleBitmap( dcMem, m_lWidth, m_lHeight );
BitBlt( dcMem, 0, 0, m_lWidth, m_lHeight, dcDesktop, 0, 0, SRCCOPY );
// Copy the hbmpMem to the desktop copy
GetObject(hbmpMem, sizeof(BITMAP), (LPSTR)&bmpDesktopCopy);
推荐答案
http://www.codeproject.com/KB/dialog/screencap.aspx
此页面有几种不同的截屏方式.他们使用的 DirectX 方法似乎很简单.
This page has a couple different ways to take screenshots. The DirectX method they use seems simple enough.
除了那篇文章中提到的内容之外，我认为没有比这更有效的方法来捕获桌面了.
Aside from what's mentioned in that article, I don't think there's any more an efficient method of capturing the desktop.
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