Re: Are there any solution or work-around to this CToolBar bug?

"Mohamed Abdel-Monem" <mmonem_at_gmail_com>
Mon, 21 Aug 2006 10:45:20 +0300
I tried this with the tool bar and with the CtoolBarCtrl also ... but it
does not work

"Joseph M. Newcomer" <> wrote in message

If I were seeing this, I might try forcing an Invalidate on the toolbar to
see if it
repaints properly. That's just a guess.

On Sun, 20 Aug 2006 12:21:12 +0300, "Mohamed Abdel-Monem"
<mmonem_at_gmail_com> wrote:

Adding buttons in runtime to a CToolBar when it is docked to the right or
the left results in a weird phenomenon, the last button in the tool bar is
not displayed until the mouse pointer moves over it for the first time.
I found some others suffering from the same problem but they included a
complicated scenario to reproduce the bug. I played with my code to give
minimal code to reproduce than problem.

In the command handler of CMainFrame of a newly generated SDI application,
add the following code:

void CMainFrame::OnBlaBlaBla()
 CToolBarCtrl& tbc = m_wndToolBar.GetToolBarCtrl();

 // Delete existing tool bar buttons
 for (int i = tbc.GetButtonCount() - 1; i >= 0 ; i--)

 // Deleting the tool bar images inside the image list
 CImageList * il = tbc.GetImageList();
 ImageList_RemoveAll (il->m_hImageList);
 tbc.SetImageList (il);

 // Adding the 3 buttons
 TBBUTTON button[3];
 int sz = sizeof (button);
 ZeroMemory (&button, sz);
 button[0].idCommand = ID_FILE_NEW;
 button[0].iBitmap = tbc.GetImageList()->Add (AfxGetApp()->LoadIcon
 button[1].idCommand = ID_FILE_NEW;
 button[1].iBitmap = tbc.GetImageList()->Add (AfxGetApp()->LoadIcon
 button[2].idCommand = ID_FILE_NEW;
 button[2].iBitmap = tbc.GetImageList()->Add (AfxGetApp()->LoadIcon
 tbc.AddButtons(3, button);

Run the application then drag the toolbar to dock it to the left. Now fire
the command to execute the previous function, you will see only two
instead of 3. Then move the mouse pointer below the second button, the
button appears!!!
This behavior happens if we dock the tool bar to the left or to the right.

I tried playing with all flags including CBRS_LEFT and tool tip flags and
others. I also tried playing with SetSizes of the CToolBar and the
underlying CToolBarCtrl. Nothing helps.

Any has a solution?


Joseph M. Newcomer [MVP]
MVP Tips:

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