C / C++ / MFC

	FILE* fp = fopen("E:\\ATrainerNew\\AS3Train\\STrain23d\\Pallett.bmp","rb");

	fseek(fp,0,SEEK_SET);
	fseek(fp,0,SEEK_END);

	long sz = ftell(fp);

	if (sz == -1L) return(1);
	
	char* pImagePointer  = new char[sz];;

	fseek(fp,0,SEEK_SET);

	int rtn = fread(pImagePointer,sz,1,fp);

	fclose(fp);

	if (rtn != 1) return(1);

	PBITMAPINFO pBMInfo = (PBITMAPINFO)(pImagePointer + sizeof(PBITMAPFILEHEADER));

	int numberOfRows    =  32;
	int numberOfColumns = 256;

	pBMInfo->bmiHeader.biWidth = numberOfColumns;

	pBMInfo->bmiHeader.biHeight = numberOfRows;

	unsigned char* pPixel = (unsigned char*)(pBMInfo->bmiColors) + 1024;

	int i,j;

	for (i = 0 ; i < numberOfRows ; i++)
		for (j = 0 ; j < numberOfColumns ; j++) *pPixel++ = j;

	FILE* fpOut = fopen("e:\\rainbow.bmp","wb");

	int nPixel = numberOfColumns * numberOfRows;

	int size = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + 1024 + nPixel;;
	fwrite(pImagePointer,size,1,fpOut);
	fclose(fpOut);

	return 0;
}