谁给我一个CreateCompatibleBitmap()的例子！

Question

xiexie

Answer 1

HDC hDC = ::GetDC(your hWnd);
HDC hMemDC = ::CreateCompatibleDC(hDC);
HBITMAP hBmp = ::CreateCompatibleBitmap(hdc, nWidth, nHeight);
HBITMAP hBmpOld = (HBITMAP)::SelectObject(hMemDC, hBmp);
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你的操作
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::BitBlt(hDC, 0, 0, nWidth, nHeight, hMemDC, 0, 0, SRCCOPY);
::SelectObject(hMemDC, hBmpOld);
::DeleteObject(hBmp);::DeleteObject(hMemDC);
::ReleaseDC(your hWnd, hDC);