- if (M_BITMAPDATA->m_hBitmap)
- M_BITMAPDATA->m_ok = TRUE;
- else
- M_BITMAPDATA->m_ok = FALSE;
+ char *data;
+ if ( depth == 1 )
+ {
+ // we assume that it is in XBM format which is not quite the same as
+ // the format CreateBitmap() wants because the order of bytes in the
+ // line is inversed!
+ static const size_t bytesPerLine = (width + 7) / 8;
+ static const size_t padding = bytesPerLine % 2;
+ static const size_t len = height * ( padding + bytesPerLine );
+ data = (char *)malloc(len);
+ const char *src = bits;
+ char *dst = data;
+
+ for ( int rows = 0; rows < height; rows++ )
+ {
+ for ( size_t cols = 0; cols < bytesPerLine; cols++ )
+ {
+ unsigned char val = *src++;
+ unsigned char reversed = 0;
+
+ for ( int bits = 0; bits < 8; bits++)
+ {
+ reversed <<= 1;
+ reversed |= (val & 0x01);
+ val >>= 1;
+ }
+ *dst++ = reversed;
+ }
+
+ if ( padding )
+ *dst++ = 0;
+ }
+ }
+ else
+ {
+ // bits should already be in Windows standard format
+ data = (char *)bits; // const_cast is harmless
+ }
+
+ HBITMAP hbmp = ::CreateBitmap(width, height, 1, depth, data);
+ if ( !hbmp )
+ {
+ wxLogLastError("CreateBitmap");
+ }