private void menuItemGamma_Click(object sender, EventArgs e)
{
GammaForm gFrm = new GammaForm();
gFrm.RedComponent = gFrm.GreenComponent = gFrm.BlueComponent = 0;
if (gFrm.ShowDialog() == DialogResult.OK)
{
this.Cursor = Cursors.WaitCursor;
imageHandler.RestorePrevious();
imageHandler.SetGamma(gFrm.RedComponent, gFrm.GreenComponent, gFrm.BlueComponent);
this.Invalidate();
this.Cursor = Cursors.Default;
}
}