BITMAPINFO bmi;
		bmi.bmiHeader.biSize = sizeof(BITMAPINFO);
		bmi.bmiHeader.biWidth = wndWidth;
		bmi.bmiHeader.biHeight = verticalFlip==0?wndHeight:-wndHeight;
		bmi.bmiHeader.biPlanes = 1;
		bmi.bmiHeader.biBitCount = 24;
		bmi.bmiHeader.biCompression = BI_RGB;
		bmi.bmiHeader.biSizeImage = 0;
		bmi.bmiHeader.biXPelsPerMeter = 0;
		bmi.bmiHeader.biYPelsPerMeter = 0;
		bmi.bmiHeader.biClrUsed = 0;
		bmi.bmiHeader.biClrImportant = 0;
		bmi.bmiColors[0].rgbBlue = 0;
		bmi.bmiColors[0].rgbGreen = 0;
		bmi.bmiColors[0].rgbRed = 0;
		bmi.bmiColors[0].rgbReserved = 0;