[GDI32]

[GDI32]
  - remove useless memory reallocation : the buffer size must be dword aligned, we have no way to guarantee the buffer location will be.
  - pass BITMAPINFO pointer size to NtGdiGetDIBitsInternal
[WIN32K]
  - Improve "not enough memory" check when creating a bitmap
  - use correct function to set the last error.

svn path=/trunk/; revision=50133