// Handle the "apply" button on this dialog.
private void ApplyButtonClicked(Object sender, EventArgs e)
{
// Copy the font details into the dialog object.
SetFont();
// Make sure that the font cannot be disposed just
// in case the surrounding application keeps a copy.
FontInfo info = new FontInfo(dialog.Font, false);
info = (FontInfo)(fonts[info]);
if (info != null)
{
info.disposable = false;
}
// Emit the "Apply" signal.
dialog.EmitApply(e);
}