MV>
  > I sometimes get a "PMERR_OUT_OF_MEMORY (0x203e) error from
  > GpiCreateBitmap, and sometimes it works just fine.
MV>

  Always remember to properly initialise all members of a structure
  variable that has automatic storage duration, otherwise the values of
  members will vary each time that the function is called.

  The wasy way to do this in C++ is to write

     BITMAPINFOHEADER2 bmih = { 0 } ;

  This initialises the whole structure to zero (the first member is
  explicitly set to zero, and the remainder are zero-initialised).

  I'll leave it as an exercise for you to spot the one important member
  of `bmih' in your original code that you forgot to initialise.  (-:

  > JdeBP <
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