private void videoSourcePlayer1_Click(object sender, EventArgs e)
{

MouseEventArgs arg = (MouseEventArgs)e;
if (this.btZoomIn.Checked == true)
{
//float zoom = this.videoSourcePlayer1.zoomFactor * 2; <-- CHANGE THIS LINE TO SET YOUR DESIRED FACTOR
float zoom = this.videoSourcePlayer1.zoomFactor * 3/8; <-- THIS WOULD BE THE NEW VALUE
if (zoom > 10) zoom = 10F; //maximum value is 10
//minimum value is 0.2
this.videoSourcePlayer1.Zoom(zoom, arg.Location);
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