private void WmDrawItemMenuItem(ref Message m)
{
System.Windows.Forms.NativeMethods.DRAWITEMSTRUCT lParam = (System.Windows.Forms.NativeMethods.DRAWITEMSTRUCT)m.GetLParam(typeof(System.Windows.Forms.NativeMethods.DRAWITEMSTRUCT));
MenuItem menuItemFromItemData = MenuItem.GetMenuItemFromItemData(lParam.itemData);
if (menuItemFromItemData != null)
{
menuItemFromItemData.WmDrawItem(ref m);
}
}
internal void WmDrawItem(ref Message m)
{
System.Windows.Forms.NativeMethods.DRAWITEMSTRUCT lParam = (System.Windows.Forms.NativeMethods.DRAWITEMSTRUCT)m.GetLParam(typeof(System.Windows.Forms.NativeMethods.DRAWITEMSTRUCT));
IntPtr handle = Control.SetUpPalette(lParam.hDC, false, false);
try
{
using (Graphics graphics = Graphics.FromHdcInternal(lParam.hDC))
{
this.OnDrawItem(new DrawItemEventArgs(graphics, SystemInformation.MenuFont, Rectangle.FromLTRB(lParam.rcItem.left, lParam.rcItem.top, lParam.rcItem.right, lParam.rcItem.bottom), this.Index, (DrawItemState)lParam.itemState));
}
}
finally
{
if (handle != IntPtr.Zero)
{
System.Windows.Forms.SafeNativeMethods.SelectPalette(new HandleRef(null, lParam.hDC), new HandleRef(null, handle), 0);
}
}
m.Result = (IntPtr)1;
}
