/// <summary>
/// Retrieves the IContextMenu for specific items
/// </summary>
/// <param name="parent">the parent IShellFolder which contains the items</param>
/// <param name="pidls">the pidls of the items for which to retrieve the IContextMenu</param>
/// <param name="icontextMenuPtr">the pointer to the IContextMenu</param>
/// <param name="iContextMenu">the IContextMenu for the items</param>
/// <returns>true if the IContextMenu has been retrieved succesfully, false otherwise</returns>
public static bool GetIContextMenu(
IShellFolder2 parent,
IntPtr[] pidls,
out IntPtr iContextMenuPtr,
out IContextMenu iContextMenu)
{
if (parent.GetUIObjectOf(
IntPtr.Zero,
(uint)pidls.Length,
pidls,
ref ShellAPI.IID_IContextMenu,
IntPtr.Zero,
out iContextMenuPtr) == ShellAPI.S_OK)
{
iContextMenu =
(IContextMenu)Marshal.GetTypedObjectForIUnknown(
iContextMenuPtr, typeof(IContextMenu));
return(true);
}
else
{
iContextMenuPtr = IntPtr.Zero;
iContextMenu = null;
return(false);
}
}
private static bool isVistaUp = Environment.OSVersion.Version.Major >= 6; //5 = XP, 6 = Vista
//http://msdn.microsoft.com/en-us/library/bb761848(VS.85).aspx
public static bool GetIExtractImage(
IShellFolder2 parent,
IntPtr filePidl,
out IntPtr iExtractImagePtr,
out IExtractImage iExtractImage)
{
if (!isVistaUp)
{
throw new NotSupportedException("Require Vista or above.");
}
if (parent.GetUIObjectOf(
IntPtr.Zero,
1,
new IntPtr[] { filePidl },
ref ShellAPI.IID_IExtractImage,
IntPtr.Zero,
out iExtractImagePtr) == ShellAPI.S_OK)
{
iExtractImage =
(IExtractImage)Marshal.GetTypedObjectForIUnknown(
iExtractImagePtr, typeof(IExtractImage));
return(true);
}
else
{
iExtractImagePtr = IntPtr.Zero;
iExtractImage = null;
return(false);
}
}
//http://msdn.microsoft.com/en-us/library/bb761848(VS.85).aspx
public static bool GetIExtractImage(
IShellFolder2 parent,
IntPtr filePidl,
out IntPtr iExtractImagePtr,
out IExtractImage iExtractImage)
{
if (parent.GetUIObjectOf(
IntPtr.Zero,
1,
new IntPtr[] { filePidl },
ref ShellAPI.IID_IExtractImage,
IntPtr.Zero,
out iExtractImagePtr) == ShellAPI.S_OK)
{
iExtractImage =
(IExtractImage)Marshal.GetTypedObjectForIUnknown(
iExtractImagePtr, typeof(IExtractImage));
return(true);
}
else
{
iExtractImagePtr = IntPtr.Zero;
iExtractImage = null;
return(false);
}
}
//http://msdn.microsoft.com/en-us/library/bb761848(VS.85).aspx
public static bool GetIExtractImage(
IShellFolder2 parent,
IntPtr filePidl,
out IntPtr iExtractImagePtr,
out IExtractImage iExtractImage)
{
if (parent.GetUIObjectOf(
IntPtr.Zero,
1,
new IntPtr[] { filePidl },
ref ShellAPI.IID_IExtractImage,
IntPtr.Zero,
out iExtractImagePtr) == ShellAPI.S_OK)
{
iExtractImage =
(IExtractImage)Marshal.GetTypedObjectForIUnknown(
iExtractImagePtr, typeof(IExtractImage));
return true;
}
else
{
iExtractImagePtr = IntPtr.Zero;
iExtractImage = null;
return false;
}
}
public int GetUIObjectOf(IntPtr hwndOwner, uint cidl, IntPtr[] apidl, ref Guid riid, IntPtr rgfReserved, out IntPtr ppv)
{
checkDisposed();
return(_iShellFolder2.GetUIObjectOf(hwndOwner, cidl, apidl, ref riid, rgfReserved, out ppv));
}
/// <summary>
/// Retrieves the IContextMenu for specific items
/// </summary>
/// <param name="parent">the parent IShellFolder which contains the items</param>
/// <param name="pidls">the pidls of the items for which to retrieve the IContextMenu</param>
/// <param name="icontextMenuPtr">the pointer to the IContextMenu</param>
/// <param name="iContextMenu">the IContextMenu for the items</param>
/// <returns>true if the IContextMenu has been retrieved succesfully, false otherwise</returns>
public static bool GetIContextMenu(
IShellFolder2 parent,
IntPtr[] pidls,
out IntPtr iContextMenuPtr,
out IContextMenu iContextMenu)
{
if (parent.GetUIObjectOf(
IntPtr.Zero,
(uint)pidls.Length,
pidls,
ref ShellAPI.IID_IContextMenu,
IntPtr.Zero,
out iContextMenuPtr) == ShellAPI.S_OK)
{
iContextMenu =
(IContextMenu)Marshal.GetTypedObjectForIUnknown(
iContextMenuPtr, typeof(IContextMenu));
return true;
}
else
{
iContextMenuPtr = IntPtr.Zero;
iContextMenu = null;
return false;
}
}
//http://msdn.microsoft.com/en-us/library/bb761848(VS.85).aspx
public static bool GetIExtractImage(
IShellFolder2 parent,
IntPtr filePidl,
out IntPtr iExtractImagePtr,
out IExtractImage iExtractImage)
{
if (!isVistaUp)
throw new NotSupportedException("Require Vista or above.");
if (parent.GetUIObjectOf(
IntPtr.Zero,
1,
new IntPtr[] { filePidl },
ref ShellAPI.IID_IExtractImage,
IntPtr.Zero,
out iExtractImagePtr) == ShellAPI.S_OK)
{
iExtractImage =
(IExtractImage)Marshal.GetTypedObjectForIUnknown(
iExtractImagePtr, typeof(IExtractImage));
return true;
}
else
{
iExtractImagePtr = IntPtr.Zero;
iExtractImage = null;
return false;
}
}
