An alternative way to capture the screen? (C ++, Windows OS)

Question

keybd_event(VK_SNAPSHOT, 0x45, KEYEVENTF_EXTENDEDKEY, 0);
keybd_event(VK_SNAPSHOT, 0x45, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
HBITMAP h;

OpenClipboard(NULL);
h = (HBITMAP)GetClipboardData(CF_BITMAP);
CloseClipboard();
...

this usually works well. but if the foreground window changes and locks the clipboard, then it cannot open the clipboard.

Is there any alternative way to capture a screen that can work in the background?

thank,

Answer 1

A simple screen capture scheme for monitor 1, which served me well, but does not cover all angular cases:

• Get screen device context.
• Create a device context that is compatible with the on-screen device context.
• Create a device-independent bitmap (needed to obtain pixel data), the same as the screen resolution.
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Answer 2

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