RE: custom menu tear off?

["Luc-Eric Rousseau" <lucer(at)Softimage.COM>]

he's the thing that's missing from the explanation of SetMenu.

In Win32 samples, you'll often see code that loads a menu and does a SetMenu on the window (HWND).  When that window is destroyed, it destroys the menu, as it has taken its ownership.  However for context menus, there is no SetMenu, and a call to DestroyMenu after the TrackPopupMenu.

 

About context menu tear offs, it's logged we'll probably do that in the future.

 

------------------
Luc-Eric Rousseau
Team Leader, User Interface
Softimage|XSI

-----Original Message-----
From: owner-xsi@Softimage.COM [mailto:owner-xsi@Softimage.COM]On Behalf Of Luc-Eric Rousseau
Posted At: Tuesday, April 04, 2006 12:39 PM
Posted To: xsi
Conversation: custom menu tear off?
Subject: RE: custom menu tear off?

This code leaks a the handle for the menu (perhaps you just forgot to put the DestroyMenu?) and therefore will eventually starve XSI for resources.

 SetMenu((HWND)__g__hInstance,MyMenu);

More seriously SetMenu() takes the handle of a window, but you're passing the handle of a DLL and casting that as a HWND.  That's potentially changing the windows menu of a random window in the system, if one happens to have that same random value.  I remember mentionning in a previous thread about the animation editor, the WIN32 SetMenu call is only used to set the top menu of a WS_POPUP application window and there is no conceivable reason why one would call this function in a plug-in, since there is no such window.

 

Also, not a bug but could confuse people trying to use this sample, it's adding a menu item with ID zero, but zero is the value that is also returned when the menu is closed without selecting anything

------------------
Luc-Eric Rousseau
Team Leader, User Interface
Softimage|XSI

-----Original Message-----
From: owner-xsi@Softimage.COM [mailto:owner-xsi@Softimage.COM]On Behalf Of Andrea Padovan
Posted At: Tuesday, November 29, 2005 9:42 PM
Posted To: xsi
Conversation: custom menu tear off?
Subject: Re: custom menu tear off?

I forgot...

You could create your menu like a window and a CDH like container of it.

I had same problem and I resolved it in this way.

 

----- Original Message -----

From: Andrea Padovan

To: XSI@Softimage.COM

Sent: Wednesday, November 30, 2005 11:25 AM

Subject: Re: custom menu tear off?

Hi Juan,

 

If your goal is to create your custom contextual menu inside XSI, it is very simple with C++.

 

#include <windows.h>

 

HINSTANCE __g__hInstance = NULL;

 

BOOL APIENTRY DllMain( HANDLE hModule,
                       DWORD  ul_reason_for_call,
                       LPVOID lpReserved
      )
{

    switch (ul_reason_for_call)
 {
  case DLL_PROCESS_ATTACH:
  case DLL_THREAD_ATTACH:
  case DLL_THREAD_DETACH:
  case DLL_PROCESS_DETACH:
  break;
    }

 

 __g__hInstance = (HINSTANCE)hModule;
    return TRUE;
}

 

// Command_Execute

Application app;

 POINT GlobalMousePosition;
 GetCursorPos(&GlobalMousePosition);

 

 HMENU MyMenu = CreatePopupMenu();
 AppendMenu(MyMenu,MF_STRING,0,"Item zero");
 AppendMenu(MyMenu,MF_STRING,1,"Item one");
 AppendMenu(MyMenu,MF_STRING,2,"Item two");

 

 SetMenu((HWND)__g__hInstance,MyMenu);

 

 int retval = TrackPopupMenuEx( MyMenu,
         TPM_RETURNCMD,
         GlobalMousePosition.x,
         GlobalMousePosition.y,
         GetForegroundWindow(),NULL);

 

 app.LogMessage(L"Global Cursor Position : ");
 app.LogMessage(CValue(GlobalMousePosition.x).GetAsText());
 app.LogMessage(CValue(GlobalMousePosition.y).GetAsText());

 

 app.LogMessage(L"Returned Value : " + CValue((long)retval).GetAsText() );

 

And you could call command for to show menu...

I don't Know in linux.

 

ããããããããããã
Andrea Padovan
 
Tool Designer @
SEGA CORPORATION
AM R&D Dept.#1 Arcade Team
AM R&D Div.
http://www.sega.co.jp/
Blr. Founder
http://www.borderliner.it
Actually located in Tokyo Japan

 

----- Original Message -----

From: "Juan Brockhaus" <Juan@glassworks.co.uk>

To: <XSI@Softimage.COM>

Sent: Tuesday, November 29, 2005 9:23 PM

Subject: custom menu tear off?

> Hi,
>
> probably this was asked before, but is it possible to create your custom
> menus as tear off menus?
> couldn't find it in the manuals.
> ...and it's still not possible to embed them into the right menus like edit,
> select, etc...?
>
> thanks,
>
> Juan
> ---
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