Delphi TWebBrowser 屏蔽右键菜单-木庄网络博客

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 TWebBrowser 屏蔽右键菜单

//Here's the code to disable the context menu (the one a user gets when it right-clicks inside a TWebBrowser) for TWebBrowser in a Delphi application:


function MouseProc(nCode: Integer; wParam, lParam: Longint): LongInt; stdcall;
var
   classbuf: array[0..255] of Char;
const
   ie = 'Internet Explorer_Server';
begin
   case nCode < 0 of
     True:
       Result := CallNextHookEx(MouseHook, nCode, wParam, lParam) ;
     False:
       case wParam of
       WM_RBUTTONDOWN, WM_RBUTTONUP:
       begin
         GetClassName(PMOUSEHOOKSTRUCT(lParam)^.HWND, classbuf, SizeOf(classbuf)) ;
         if lstrcmp(@classbuf[0], @ie[1]) = 0 then
           Result := HC_SKIP
         else
           Result := CallNextHookEx(MouseHook, nCode, wParam, lParam) ;
       end
       else
       begin
         Result := CallNextHookEx(MouseHook, nCode, wParam, lParam) ;
       end;
     end; //case wParam
   end; //case nCode
end; (*MouseProc*)


//Form OnCreate
procedure TWebBrowserForm.FormCreate(Sender: TObject) ;
begin
   MouseHook := SetWindowsHookEx(WH_MOUSE, MouseProc, 0, GetCurrentThreadId()) ;
end;

//Form OnDestroy
procedure TWebBrowserForm.FormDestroy(Sender: TObject) ;
begin
   if MouseHook <> 0 then UnHookWindowsHookEx(MouseHook) ;
end;


If you want to find more about Windows hooks, read the :An introduction to hook procedures
Delphi TWebBrowser 屏蔽右键菜单

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