public void vlineRGBA()
{
this.InitSdl();
//Random rand = new Random();
int result = SdlGfx.vlineRGBA(surfacePtr, 100, 200, 100, 200, 0, (byte)0, 254);
result = Sdl.SDL_Flip(surfacePtr);
Thread.Sleep(sleepTime);
Assert.AreEqual(result, 0);
this.Quit();
}