public static extern bool GetMenuItemInfo(IntPtr hMenu, uint uItem, [MarshalAs(UnmanagedType.Bool)] bool fByPosition, ref MENUITEMINFO lpmii);
private void InitializeToolStripItems(ToolStripItemCollection itemCollection, IntPtr menu)
{
itemCollection.Clear();
int menuItemCount = Windows.GetMenuItemCount(menu);
MENUITEMINFO lpmii = new MENUITEMINFO {
cbSize = MENUITEMINFO.SizeOf
};
for (uint i = 0; i < menuItemCount; i++)
{
ToolStripItem item;
lpmii.fMask = MIIM.MIIM_DATA | MIIM.MIIM_STRING | MIIM.MIIM_FTYPE | MIIM.MIIM_BITMAP | MIIM.MIIM_CHECKMARKS | MIIM.MIIM_STATE | MIIM.MIIM_SUBMENU | MIIM.MIIM_ID;
lpmii.dwTypeData = null;
Windows.GetMenuItemInfo(menu, i, true, ref lpmii);
if ((lpmii.fType & MFT.MFT_SEPARATOR) > MFT.MFT_STRING)
{
item = new ToolStripSeparator();
}
else
{
item = new ToolStripMenuItem();
if (lpmii.cch > 0)
{
lpmii.cch++;
lpmii.dwTypeData = new string(' ', (int) lpmii.cch);
Windows.GetMenuItemInfo(menu, i, true, ref lpmii);
item.Text = lpmii.dwTypeData;
}
Image image = null;
if (((lpmii.fMask & MIIM.MIIM_BITMAP) > ((MIIM) 0)) && (lpmii.hbmpItem != IntPtr.Zero))
{
if (lpmii.hbmpItem == Windows.HBMMENU_CALLBACK)
{
lpmii.fType |= MFT.MFT_OWNERDRAW;
}
else
{
image = ImageHelper.FromHbitmapWithAlpha(lpmii.hbmpItem);
image.RotateFlip(RotateFlipType.Rotate180FlipX);
}
}
else if (((lpmii.fMask & MIIM.MIIM_CHECKMARKS) > ((MIIM) 0)) && (lpmii.hbmpUnchecked != IntPtr.Zero))
{
image = ImageHelper.FromHbitmapWithAlpha(lpmii.hbmpUnchecked);
item.ImageTransparentColor = SystemColors.Window;
}
if (image != null)
{
item.ImageScaling = ToolStripItemImageScaling.None;
item.Image = image;
}
if (((lpmii.fType & MFT.MFT_OWNERDRAW) > MFT.MFT_STRING) && ((this.ContextMenu3 != null) || (this.ContextMenu2 != null)))
{
item.Paint += new PaintEventHandler(this.ToolStripMenuItem_Paint);
}
if (lpmii.hSubMenu != IntPtr.Zero)
{
ToolStripMenuItem item2 = (ToolStripMenuItem) item;
item2.DropDownItemClicked += new ToolStripItemClickedEventHandler(this.ToolStrip_ItemClick);
if ((this.ContextMenu3 != null) || (this.ContextMenu2 != null))
{
item2.DropDownItems.Add(string.Empty);
item2.DropDownOpening += new EventHandler(this.ToolStripMenuItem_DropDownOpening);
}
else
{
this.InitializeToolStripItems(item2.DropDownItems, lpmii.hSubMenu);
}
}
}
item.Tag = new MenuItemInfo { Info = lpmii, Menu = menu, Index = i };
itemCollection.Add(item);
this.ItemContainer.Add(item);
}
}