Dynamic Toolbars

**nvoigt** · 01-10-2002, 11:38 AM

Hi guys,

I'm using VC6 SP5 with MFC to create my application. I have a Framewindow and a Toolbar. I can dynamically set the toolbars buttons. BUT: Obviously Framewindow/Toolbar pairs have some kind of automation that when the parent window has no command handler ( ON_COMMAND() ) of the toolbar buttons command ID, the toolbar button is disabled. What a funny idea. I can dynamically create buttons, but not their command handlers, as I need a unique function for each... who was the genius that thought this plan up ? If you have any clue what I'm talking about and/or any helpful hints, demo sources, tutorials, please share.
Because dynamic buttons are no fun if I don't have a chance to enable them.

I surfed the .net, but nothing really dynamic came up. I need it to be really dynamic, not cheats like create a hundred and hope that's the limit. I need it to be customizable in the code, not by the user of my app.

I know I can create the button. I can set the command handler ID. But If I have no hard-coded command handler, the framework will disable the button.

Tearing my hair out already...

[Edit: If you know how to do it in API only, your welcome... I will write the Toolbar class myself if I have to, I just need those *#&% dynamic stuff... ]

**nvoigt** · 01-11-2002, 10:21 AM

Just to keep you in the loop:

I dug up countless tutorials from the net. Not one did what I needed. Probably it's mentioned nowhere how to do it. So I scanned the MFC sourcecode for a solution and after 2 hours of searching, I turned up this:

PHP Code:

  class CSAZToolBar : public CToolBar

{

   virtual void OnUpdateCmdUI(CFrameWnd* pTarget, BOOL bDisableIfNoHandler)

   {

      CToolBar::OnUpdateCmdUI( pTarget, FALSE ); 

   }

};

If you overwrite the function that checks if there is a commandhandler and never disable any button, it works.

I'm still quite annoyed, this is something not that uncommon... and it's not even documented, because OnUpdateCmdUI is a method of CControlBar, CToolbars baseclass... *grrrrr*

Case closed.

01-10-2002, 11:38 AM	#1
nvoigt the hat of redundancy hat Join Date: Aug 2001 Location: Hannover, Germany Posts: 2,768	Dynamic Toolbars Hi guys, I'm using VC6 SP5 with MFC to create my application. I have a Framewindow and a Toolbar. I can dynamically set the toolbars buttons. BUT: Obviously Framewindow/Toolbar pairs have some kind of automation that when the parent window has no command handler ( ON_COMMAND() ) of the toolbar buttons command ID, the toolbar button is disabled. What a funny idea. I can dynamically create buttons, but not their command handlers, as I need a unique function for each... who was the genius that thought this plan up ? If you have any clue what I'm talking about and/or any helpful hints, demo sources, tutorials, please share. Because dynamic buttons are no fun if I don't have a chance to enable them. I surfed the .net, but nothing really dynamic came up. I need it to be really dynamic, not cheats like create a hundred and hope that's the limit. I need it to be customizable in the code, not by the user of my app. I know I can create the button. I can set the command handler ID. But If I have no hard-coded command handler, the framework will disable the button. Tearing my hair out already... [Edit: If you know how to do it in API only, your welcome... I will write the Toolbar class myself if I have to, I just need those #&% dynamic stuff... ] __________________ hth -nv She was so Blonde, she spent 20 minutes looking at the orange juice can because it said "Concentrate." When in doubt, read the FAQ. Then* ask a smart question.
nvoigt is offline

01-11-2002, 10:21 AM	#2
nvoigt the hat of redundancy hat Join Date: Aug 2001 Location: Hannover, Germany Posts: 2,768	Just to keep you in the loop: I dug up countless tutorials from the net. Not one did what I needed. Probably it's mentioned nowhere how to do it. So I scanned the MFC sourcecode for a solution and after 2 hours of searching, I turned up this: PHP Code: `class CSAZToolBar : public CToolBar { virtual void OnUpdateCmdUI(CFrameWnd* pTarget, BOOL bDisableIfNoHandler) { CToolBar::OnUpdateCmdUI( pTarget, FALSE ); } };` If you overwrite the function that checks if there is a commandhandler and never disable any button, it works. I'm still quite annoyed, this is something not that uncommon... and it's not even documented, because OnUpdateCmdUI is a method of CControlBar, CToolbars baseclass... grrrrr Case closed. __________________ hth -nv She was so Blonde, she spent 20 minutes looking at the orange juice can because it said "Concentrate." When in doubt, read the FAQ. Then ask a smart question.
nvoigt is offline

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