Jeffrey Morlan 6b4f247e21 - NtGdiAlphaBlend: If hDCSrc == hDCDest and a bitmap can't be locked, don't unlock the DC twice. Fix typo in if condition which prevented detection of bad source bitmap.
- NtGdiBitBlt: Fix null pointer access when cleaning up after failure to lock source bitmap.
- NtGdiStretchBlt: Fail gracefully if a bitmap can't be locked. Don't delete XlateObj if it couldn't be created.
- NtGdiPolyPatBlt: Actually *use* the safe copy that so much code was dedicated to creating. :)
- Trim a few bits of redundant code.

svn path=/trunk/; revision=34267
2008-07-02 17:20:28 +00:00
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