private void MenuVideoUpdate()
{
if (this.currentGraphBuilder != null)
{
this.graphToolStripMenuItem.Enabled = true;
this.filtersToolStripMenuItem.Enabled = true;
this.videoToolStripMenuItem.Enabled = true;
}
else
{
this.graphToolStripMenuItem.Enabled = false;
this.filtersToolStripMenuItem.Enabled = false;
this.videoToolStripMenuItem.Enabled = false;
}
}