private int RegisterMenuItem(uint id,
uint idCmdFirst,
string text,
bool enabled,
IntPtr bitmap,
IntPtr subMenu,
uint position,
IntPtr registerTo)
{
var sub = new MENUITEMINFO();
sub.cbSize = (uint)Marshal.SizeOf(sub);
var m = MIIM.MIIM_STRING | MIIM.MIIM_FTYPE | MIIM.MIIM_ID | MIIM.MIIM_STATE;
if (bitmap != IntPtr.Zero)
{
m |= MIIM.MIIM_BITMAP;
}
if (subMenu != IntPtr.Zero)
{
m |= MIIM.MIIM_SUBMENU;
}
sub.fMask = m;
sub.wID = idCmdFirst + id;
sub.fType = MFT.MFT_STRING;
sub.dwTypeData = text;
sub.hSubMenu = subMenu;
sub.fState = enabled ? MFS.MFS_ENABLED : MFS.MFS_DISABLED;
sub.hbmpItem = bitmap;
if (!NativeMethods.InsertMenuItem(registerTo, position, true, ref sub))
{
return(Marshal.GetHRForLastWin32Error());
}
return(0);
}
public static extern bool InsertMenuItem(
IntPtr hMenu,
uint uItem,
[MarshalAs(UnmanagedType.Bool)] bool fByPosition,
ref MENUITEMINFO mii);
/// <summary>
/// Add commands to a shortcut menu.
/// </summary>
/// <param name="hMenu">A handle to the shortcut menu.</param>
/// <param name="iMenu">
/// The zero-based position at which to insert the first new menu item.
/// </param>
/// <param name="idCmdFirst">
/// The minimum value that the handler can specify for a menu item ID.
/// </param>
/// <param name="idCmdLast">
/// The maximum value that the handler can specify for a menu item ID.
/// </param>
/// <param name="uFlags">
/// Optional flags that specify how the shortcut menu can be changed.
/// </param>
/// <returns>
/// If successful, returns an HRESULT value that has its severity value set
/// to SEVERITY_SUCCESS and its code value set to the offset of the largest
/// command identifier that was assigned, plus one.
/// </returns>
public int QueryContextMenu(
IntPtr hMenu,
uint iMenu,
uint idCmdFirst,
uint idCmdLast,
uint uFlags)
{
// If uFlags include CMF_DEFAULTONLY then we should not do anything.
if (((uint)CMF.CMF_DEFAULTONLY & uFlags) != 0)
{
return(WinError.MAKE_HRESULT(WinError.SEVERITY_SUCCESS, 0, 0));
}
// Add a separator.
var sep = new MENUITEMINFO();
sep.cbSize = (uint)Marshal.SizeOf(sep);
sep.fMask = MIIM.MIIM_TYPE;
sep.fType = MFT.MFT_SEPARATOR;
if (!NativeMethods.InsertMenuItem(hMenu, 0, true, ref sep))
{
return(Marshal.GetHRForLastWin32Error());
}
// Register item 0: Submenu
var hSubMenu = NativeMethods.CreatePopupMenu();
var item = menuItems[0];
RegisterMenuItem(0, idCmdFirst, item.Text, true, item.Bitmap, hSubMenu, 1, hMenu);
// Register item 1: RunDefault
item = menuItems[1];
RegisterMenuItem(1, idCmdFirst, item.Text, true, item.Bitmap, IntPtr.Zero, 0, hSubMenu);
// Add a separator.
sep = new MENUITEMINFO();
sep.cbSize = (uint)Marshal.SizeOf(sep);
sep.fMask = MIIM.MIIM_TYPE;
sep.fType = MFT.MFT_SEPARATOR;
NativeMethods.InsertMenuItem(hSubMenu, 1, true, ref sep);
// Register item 2 (Submenu->ManageApp).
item = menuItems[2];
RegisterMenuItem(2, idCmdFirst, item.Text, true, item.Bitmap, IntPtr.Zero, 2, hSubMenu);
// Register item 3 (Submenu->ManageAll).
item = menuItems[3];
RegisterMenuItem(3, idCmdFirst, item.Text, true, item.Bitmap, IntPtr.Zero, 3, hSubMenu);
//Register user-defined profiles.
//We should count down to 4.
for (var i = menuItems.Count - 1; i > 3; i--)
{
item = menuItems[i];
if (item.ShowInMainMenu == true)
{
RegisterMenuItem((uint)i, idCmdFirst, item.Text, item.Enabled, item.Bitmap, IntPtr.Zero, 1, hMenu);
}
else
{
RegisterMenuItem((uint)i, idCmdFirst, item.Text, item.Enabled, item.Bitmap, IntPtr.Zero, 0, hSubMenu);
}
}
// Add a separator.
sep = new MENUITEMINFO();
sep.cbSize = (uint)Marshal.SizeOf(sep);
sep.fMask = MIIM.MIIM_TYPE;
sep.fType = MFT.MFT_SEPARATOR;
NativeMethods.InsertMenuItem(hSubMenu,
(uint)menuItems.FindAll(t => t.ShowInMainMenu != true).Count - 4,
true,
ref sep);
// Return an HRESULT value with the severity set to SEVERITY_SUCCESS.
// Set the code value to the total number of items added.
return(WinError.MAKE_HRESULT(WinError.SEVERITY_SUCCESS, 0, 3 + (uint)menuItems.Count));
}