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CreateCompatibleBitmap() from Un-released DC
Oct 12, 2014 at 6:54am
Hey there,
I just tracked down a bug within my source code, where my use of CreateCompatibleBitmap() is returning NULL.
I have a hunch that it is because I haven't released the DC, before trying to use it to create a bitmap.
If a DC is not released, can you still create a bitmap from it?
NOTE: The device context in question is not a WindowDC, it's a PrivateDC. Hence, the reason I didn't release it.
I just tracked down a bug within my source code, where my use of CreateCompatibleBitmap() is returning NULL.
I have a hunch that it is because I haven't released the DC, before trying to use it to create a bitmap.
If a DC is not released, can you still create a bitmap from it?
NOTE: The device context in question is not a WindowDC, it's a PrivateDC. Hence, the reason I didn't release it.
Oct 12, 2014 at 9:55am| If a DC is not released, can you still create a bitmap from it? |
Yes. Are you sure the DC handle is valid?
Oct 12, 2014 at 11:05am
What exactly is a "PrivateDC" ? Where does it came from ? It is a class ?
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