How do read bitmap x,y pixel coords?

This is a discussion on How do read bitmap x,y pixel coords? within the Game Programming forums, part of the General Programming Boards category; How can I tell if pixel 3x9 on my bitmap (which is loaded into a HBITMAP var) is the color ...

  1. #1
    Registered User Queatrix's Avatar
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    Question How do read bitmap x,y pixel coords?

    How can I tell if pixel 3x9 on my bitmap (which is loaded into a HBITMAP var) is the color RGB(0,10,250)?
    I have tried to use GetPixel() but that only reads the color of a pixel that is currently printed on the screen.

    Please help!

  2. #2
    vae victus! skorman00's Avatar
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    GetPixel() does not get pixels on the screen, it gets pixels that are on a device context, which may or may not be drawn to the screen (yes I am a smart arse). With just that, you can draw to the dc, GetPixel(), then clear the dc again.

    But that would be silly, use GetBitmapBits().

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