Toolkit Pro - How to enable or disable the toolbar buttons?

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How to enable or disable the toolbar buttons?

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Category: Codejock Products
Forum Name: Toolkit Pro
Forum Description: Topics Related to Codejock Toolkit Pro
URL: http://forum.codejock.com/forum_posts.asp?TID=13137
Printed Date: 18 April 2024 at 10:29am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: How to enable or disable the toolbar buttons?

Posted By: evoX
Subject: How to enable or disable the toolbar buttons?
Date Posted: 09 January 2009 at 1:43pm

How I can disable the buttons on a toolbar? then after the application completes a task to enable the buttons back?

I have tried

GetCommandBars()->GetToolBar(0)->EnableWindow(FALSE);

but the application crashes.

-------------
Product: Xtreme ToolkitPro 19.30
Platform: Windows 10 64bit
Language: Visual C++ (VS 2019)

Replies:

Posted By: mgampi
Date Posted: 09 January 2009 at 3:18pm

Hi;
The easiest way is by using the ON_UPDATE_COMMAND_UI handler of the button.
When you start the task set a bool variable to false and after finishing the task reset the variable to true.
In your ON_UPDATE_COMMAND_UI handler set pCmdUI->Enable(m_bTaskFinished==true)
Thats it!

-------------
Martin

Product: Xtreme Toolkit v 19.0.0, new Projects v 19.1.0
Platform: Windows 10 v 1909 (64bit)
Language: VC++ 2017

Posted By: evoX
Date Posted: 09 January 2009 at 9:05pm

Hi,

Thanks !, but this means that I need an ON_UPDATE_COMMAND_UI handler for each toolbar command/button ?

Isn't there an easier way to disable all the toolbar buttons at once?

-------------
Product: Xtreme ToolkitPro 19.30
Platform: Windows 10 64bit
Language: Visual C++ (VS 2019)

Posted By: tNgLoo
Date Posted: 10 January 2009 at 9:16am

m_pTheToolBar->SetVisible(FALSE);

Posted By: evoX
Date Posted: 10 January 2009 at 3:50pm

If I use this, the application crashes

GetCommandBars()->GetToolBar(0)->SetVisible(FALSE);

Also the I think that SetVisible will completly hide the toolbar which is not what I want. I just want the buttons to be disabled.

-------------
Product: Xtreme ToolkitPro 19.30
Platform: Windows 10 64bit
Language: Visual C++ (VS 2019)

Posted By: mdoubson
Date Posted: 10 January 2009 at 8:33pm

You crashing problems related to your dirty programming style:

I am sure you have no GetCommandBars()->GetToolBar(0) at all

You don't check it before asking action:

if (GetCommandBars()->GetToolBar(0))

{

GetCommandBars()->GetToolBar(0)->SetVisible(FALSE);

GetCommandBars()->GetToolBar(0)->SetContextMenuPresent(FALSE);

}

e.g. for most app this code will works

GetCommandBars()->GetToolBar(IDR_MAINFRAME)->SetVisible(FALSE);

Posted By: mdoubson
Date Posted: 10 January 2009 at 9:14pm

You can access individual toolbar button or other elements with:

CXTPControl* pBarControl = GetCommandBars()->GetToolBar(IDR_MAINFRAME)->GetControl(1);//0=New, 1=Open and so on

if (pBarControl)

pBarControl->SetEnabled(FALSE);

BUT IT WILL NOT HELP YOU as System will enable it because you don't like to use ON_UPDATE_COMMAND_UI and by default all will be enable again

while code

void CMainFrame::OnUpdateFileOpen(CCmdUI* pCmdUI)

{

pCmdUI->Enable(FALSE);

}

do proper work

Posted By: evoX
Date Posted: 10 January 2009 at 10:23pm

well I don't think that it's my dirty programming style, because even with this line it crashes

CXTPControl* pBarControl = GetCommandBars()->GetToolBar(IDR_TOOLBAR_START)->GetControl(0);//0=New, 1=Open and so on

It crashes in this XTP function with access violation

int CXTPCommandBar::GetControlCount() const
{
return m_pControls->GetCount();
}

I will try to use ON_UPDATE_COMMAND_UI

-------------
Product: Xtreme ToolkitPro 19.30
Platform: Windows 10 64bit
Language: Visual C++ (VS 2019)

Posted By: evoX
Date Posted: 10 January 2009 at 10:40pm

I used ON_UPDATE_COMMAND_UI, but now the problem is that the button remains disabled forever because ON_UPDATE_COMMAND_UI is called only when you press the button

(and yes, the m_bTaskRunning is set correctly to FALSE after the task is finished, but the toolbar button still remains disabled)

void CMainPropertySheet::OnUpdateMenuStart(CCmdUI* pCmdUI)
{
if (m_bTaskRunning == TRUE) pCmdUI->Enable(FALSE);
else pCmdUI->Enable(TRUE);
}

-------------
Product: Xtreme ToolkitPro 19.30
Platform: Windows 10 64bit
Language: Visual C++ (VS 2019)

Posted By: mdoubson
Date Posted: 10 January 2009 at 10:48pm

Same story: you don't check

if (GetCommandBars()->GetToolBar(IDR_TOOLBAR_START))

{

}

I guess it give NULL

Posted By: mdoubson
Date Posted: 10 January 2009 at 11:36pm

void CMainPropertySheet::OnUpdateMenuStart(CCmdUI* pCmdUI)
{
pCmdUI->Enable(!m_bTaskRunning);
}

ProperySheets - Wizards have little bit another handling - look in any sample where you have "Finish" button which disable until some condition

I gave you some standard ideas for SDI - MDI architecture

Posted By: mdoubson
Date Posted: 10 January 2009 at 11:55pm

this is that you need:

Using ON_UPDATE_COMMAND_UI message maps in property pages is the same as in dialogs except for one extra step required.
You need to derive a class from CPropertySheet and intercept the WM_KICKIDLE messages.

1. Create a new class called CMyPropSheet with a base class of CPropertSheet.
2. In the header add the message function. afx_msg LRESULT OnIdleUpdateCmdUI(WPARAM, LPARAM);
3. In the source file #include afxpriv.h
4. Add the message map ON_MESSAGE(WM_KICKIDLE, OnKickIdle)
5. Implement the function.

LRESULT CMyPropSheet::OnKickIdle(WPARAM, LPARAM)
{
SendMessageToDescendants(WM_WM_KICKIDLE, 0, 0, FALSE, FALSE);
return 0;
}

The property sheet now passes all WM_KICKIDLE message to its property pages.

In the property page class, just add a message map for WM_KICKIDLE and call UpdateDialogControls.

LRESULT CMyPropPage::OnKickIdle(WPARAM, LPARAM)
{
UpdateDialogControls(this, FALSE);
return 0L;
}

Then all you need is ON_UPDATE_COMMAND_UI message maps.

P.S. This does not work for modeless property sheets. You need to trap the WM_IDLEUPDATECMDUI message in the property sheet's owner window and send it WK_KICKIDLE messages.

Posted By: evoX
Date Posted: 11 January 2009 at 10:51am

Hi,

CXTPCommandBars* pCommandBars = GetCommandBars(); // This returns the correct pointer

CXTPToolBar* pToolbar = pCommandBars->GetToolBar(IDR_TOOLBAR_START); // here I get NULL (I don't know why because the toolbar is created when I call this)

CXTPToolBar* pToolbar = pCommandBars->GetAt(0); // This will return a correct pointer !

why do I need to add OnKickIdle in the property page? because the toolbar is in the propertysheet in place of the standard wizard buttons.

I need to modify the MFC source code afxpriv.h ?

Thanks !

-------------
Product: Xtreme ToolkitPro 19.30
Platform: Windows 10 64bit
Language: Visual C++ (VS 2019)

Posted By: mdoubson
Date Posted: 11 January 2009 at 12:17pm

CXTPToolBar* pToolbar = pCommandBars->GetToolBar(IDR_TOOLBAR_START); // here I get NULL (I don't know why because the toolbar is created when I call this) - This is very bad situation - it means that you created temporary object which disapear later (like you leave a scoop?)

I need to modify the MFC source code afxpriv.h ? - No, you just use some private MFC feature