你可以把一个设备无关位图（DIB）在不转换成设备相关位图（DDB）的情况下显示到设备环境中，但是，这样做显示速度将慢很多。如果进行转换，将提高显示速度。下面是其实现代码。
HBITMAP DIBToDDB( HANDLE hDIB ) { LPBITMAPINFOHEADER lpbi; HBITMAP hbm; CPalette pal; CPalette* pOldPal; CClientDC dc(NULL); if (hDIB == NULL) return NULL; lpbi = (LPBITMAPINFOHEADER)hDIB; int nColors = lpbi->biClrUsed ? lpbi->biClrUsed : 1 << lpbi->biBitCount; BITMAPINFO &bmInfo = *(LPBITMAPINFO)hDIB ; LPVOID lpDIBBits; if( bmInfo.bmiHeader.biBitCount > 8 ) lpDIBBits = (LPVOID)((LPDWORD)(bmInfo.bmiColors + bmInfo.bmiHeader.biClrUsed) + ((bmInfo.bmiHeader.biCompression == BI_BITFIELDS) ? 3 : 0)); else lpDIBBits = (LPVOID)(bmInfo.bmiColors + nColors); // Create and select a logical palette if needed if( nColors <= 256 && dc.GetDeviceCaps(RASTERCAPS) & RC_PALETTE) { UINT nSize = sizeof(LOGPALETTE) + (sizeof(PALETTEENTRY) * nColors); LOGPALETTE *pLP = (LOGPALETTE *) new BYTE[nSize]; pLP->palVersion = 0x300; pLP->palNumEntries = nColors; for( int i=0; i < nColors; i++) { pLP->palPalEntry[i].peRed = bmInfo.bmiColors[i].rgbRed; pLP->palPalEntry[i].peGreen = bmInfo.bmiColors[i].rgbGreen; pLP->palPalEntry[i].peBlue = bmInfo.bmiColors[i].rgbBlue; pLP->palPalEntry[i].peFlags = 0; } pal.CreatePalette( pLP ); delete[] pLP; // Select and realize the palette pOldPal = dc.SelectPalette( &pal, FALSE ); dc.RealizePalette(); } hbm = CreateDIBitmap(dc.GetSafeHdc(), // handle to device context (LPBITMAPINFOHEADER)lpbi, // pointer to bitmap info header (LONG)CBM_INIT, // initialization flag lpDIBBits, // pointer to initialization data (LPBITMAPINFO)lpbi, // pointer to bitmap info DIB_RGB_COLORS ); // color-data usage if (pal.GetSafeHandle()) dc.SelectPalette(pOldPal,FALSE); return hbm; }