compile test app on Win32 at /W4 (Warning level 4), rather than /W3.  I.e. turn on more warnings.
compile test app on Win32 at /W4 (Warning level 4), rather than /W3.  I.e. turn on more warnings.

DavidLudwig/DL_Raster,DavidLudwig/DLRaster,DavidLudwig/DL_Raster