void Main_FormClosing(object sender, FormClosingEventArgs e)
{
tmr.Stop();
DllNative.CleanUpDirect3D();
}
void tmr_Tick(object sender, EventArgs e)
{
DllNative.Render();
}
void Main_Load(object sender, EventArgs e)
{
DllNative.InitDirect3D(pnx.Handle.ToPointer());
}