GetPixel Problem

PHP Code:

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HDC bitmapDC;
HBITMAP bitmapHandle;
COLORREF bmpSample;
    bitmapHandle=(HBITMAP)LoadImage(0,"e:\\mytestsample.bmp",IMAGE_BITMAP,0,0,LR_LOADFROMFILE);
    bitmapDC = GetDC((HWND)bitmapHandle);
    bmpSample = GetPixel(bitmapDC, 23, 31);
    cout << "aaa " << bmpSample << '\n'; 


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I get a 9 digit value for bmpSample lol.

this question belongs on the windows board...

// bitmapDC = GetDC((HWND)bitmapHandle);

first of all, why are you casting an HBITMAP to HWND? their completely incompatible types. you need to create a compatible device context with the one you'll be drawing to (in this case, the screen), then select the bitmap into it.

Code:

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HDC sdc = GetDC(NULL); // ie: the screen
HDC cdc = CreateCompatibleDC(sdc);
SelectObject(cdc, bmp);

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Moved to the Windows board.

Maybe if you can put bitmapHandle in a static control..you can use correctly GetPixel