C # completely shield the right-click menu of Flash

Using System;
Using System. Collections. Generic;
Using System. componentmodel;
Using System. Data;
Using System. drawing;
Using System. text;
Using System. Windows. forms;
Using System. runtime. interopservices;

Namespace Flashplayer
{
Public Partial Class Form1: Form
{
Disable Flash's context menu # Region Disable Flash's context menu
Private   Const   Int Gwl_wndproc =   - 4 ;
Public   Delegate Intptr flawndproc (intptr hwnd, Int MSG, intptr wparam, intptr lparam );

Private Intptr oldwndproc = Intptr. zero;
Private Flawndproc WPR =   Null ;

[Dllimport ( " User32.dll " , Charset = Charset. Auto)]
Public   Static   Extern Intptr setwindowlong (intptr hwnd, Int Nindex, flawndproc wndproc );
[Dllimport ( " User32.dll " , Charset = Charset. Auto)]
Public   Static   Extern Intptr callwindowproc (intptr wndproc, intptr hwnd, Int MSG, intptr wparam, intptr lparam );

Private Intptr flashwndproc (intptr hwnd, Int MSG, intptr wparam, intptr lparam) {< br> If (MSG = 516 )
return (intptr) 0 ;< br> return callwindowproc (oldwndproc, hwnd, MSG, wparam, lparam );
}
# Endregion

Public Form1 ()
{
Initializecomponent ();
}

Private   Void Form1_load ( Object Sender, eventargs E) {
This. WPR= NewFlawndproc (This. Flashwndproc );
This. Oldwndproc=Setwindowlong (axshockwaveflash1.handle, gwl_wndproc, WPR );
}
}
}