public static bool SetViewport(int x, int y, int w, int h)
{
PushAll();
Viewport viewport = new Viewport();
viewport.set_MinZ(0f);
viewport.set_MaxZ(1f);
int v = x;
int num2 = y;
int num3 = x + w;
int num4 = y + h;
Fix(ref v, Engine.ScreenWidth);
Fix(ref num2, Engine.ScreenHeight);
Fix(ref num3, Engine.ScreenWidth);
Fix(ref num4, Engine.ScreenHeight);
viewport.set_X(v);
viewport.set_Y(num2);
viewport.set_Width(num3 - v);
viewport.set_Height(num4 - num2);
if ((viewport.get_Width() == 0) || (viewport.get_Height() == 0))
{
return false;
}
Engine.m_Device.set_Viewport(viewport);
return true;
}