// Also needed for SetFocus Keyboard navigation
private static bool IsSeparator (IntPtr hmenu, int position)
{
NativeMethods.MENUITEMINFO menuItemInfo = new NativeMethods.MENUITEMINFO ();
menuItemInfo.cbSize = Marshal.SizeOf (menuItemInfo.GetType ());
menuItemInfo.fMask = NativeMethods.MIIM_FTYPE | NativeMethods.MIIM_SUBMENU | NativeMethods.MIIM_STATE;
if (!Misc.GetMenuItemInfo(hmenu, position, true, ref menuItemInfo))
{
return false;
}
return (Misc.IsBitSet(menuItemInfo.fType, NativeMethods.MF_SEPARATOR) ||
Misc.IsBitSet(menuItemInfo.fType, NativeMethods.MF_MENUBARBREAK) ||
Misc.IsBitSet(menuItemInfo.fType, NativeMethods.MF_MENUBREAK));
}
// Retrieve type of menu item
private MenuItemType GetMenuItemType ()
{
if (_menuType == WindowsMenu.MenuType.System)
{
return MenuItemType.SubMenu;
}
NativeMethods.MENUITEMINFO menuItemInfo = new NativeMethods.MENUITEMINFO();
menuItemInfo.cbSize = Marshal.SizeOf(menuItemInfo.GetType());
menuItemInfo.fMask = NativeMethods.MIIM_FTYPE | NativeMethods.MIIM_SUBMENU | NativeMethods.MIIM_STATE;
if (Misc.GetMenuItemInfo(_hmenu, _item, true, ref menuItemInfo))
{
if (menuItemInfo.hSubMenu != IntPtr.Zero)
{
return MenuItemType.SubMenu;
}
if (Misc.IsBitSet(menuItemInfo.fType, NativeMethods.MF_SEPARATOR) ||
Misc.IsBitSet(menuItemInfo.fType, NativeMethods.MF_MENUBARBREAK) ||
Misc.IsBitSet(menuItemInfo.fType, NativeMethods.MF_MENUBREAK))
{
return MenuItemType.Spacer;
}
}
return MenuItemType.Command; // Everything else
}
private bool IsRadioCheck()
{
NativeMethods.MENUITEMINFO menuItemInfo = new NativeMethods.MENUITEMINFO();
menuItemInfo.cbSize = Marshal.SizeOf(menuItemInfo.GetType());
menuItemInfo.fMask = NativeMethods.MIIM_FTYPE | NativeMethods.MIIM_SUBMENU | NativeMethods.MIIM_STATE;
if (!Misc.GetMenuItemInfo(_hmenu, _item, true, ref menuItemInfo))
{
return false;
}
return (Misc.IsBitSet(menuItemInfo.fType, NativeMethods.MFT_RADIOCHECK) && menuItemInfo.hbmpChecked == IntPtr.Zero);
}