Problem with OnContextMenu and CTreeCtrl

Sanjay -- SGUPTA@aegonusa.com
Monday, April 22, 1996



OS: Win 95
VC++4.0

I am trying to create a dialog bar which behaves in a manner similar to 
dialog bar in
VC++ 4.0 developer studio - the dialog bar which contains tabs for class 
view, resource view etc. This is what I did to create the dialog bar:

I created the dialog template for the dialog bar. Derivved a class from 
CDialogBar as

CMyDialogBar : public CDialogBar.

In OnCreate for Mainframe, I create an object of type CMyDialogBar with 
template ID the one ICreated.

I override the Create function for CMyDialogBar. If Create returns fine, I 
create four
bitmap buttons which look like bitmaps. Bitmap buttons are members of 
CMyDialogBar.

 Also, I derived a class from CTreeCtrl as
CFormsTree : public CMyTree.
In the Create function for CMyDialogBar, I also create the
object for CMyTree. In OnCreate for CMyTree, I fill the tree with info. Now, 
to bring the
CMyDialogBar in command message routing, I override OnCmdMsg in my app 
classs, where I call OnCmdMsg for the dialog class first, if the message is 
not handled there, I pass the message along.

I want the popup menu to be handeled by the CFormsTree class itself, so I 
added the
popup context menu using component gallery to CFormsTree class. Now the 
problem is that when I click right mouse button in the tree control, popup 
menu soes not come up - I used spy++ to find out that the message is going 
to parent which inthis case is CMyDialogBar. If I double click with the 
right mouse button, then the message comes to tree control and pop up menu 
is displayed.

I wonder if I have to reflect the message back from the parent to the child. 
I will greatly appreciate any help on this.

Sanjay
sgupta@aegonusa.com

---

Klaus Guetter -- 100031.1400@CompuServe.COM
Thursday, April 25, 1996

This is how I solved the same problem fort a CTreeView inside a MDI child frame.

void CMyMDIChildFrame::OnContextMenu(CWnd* pWnd, CPoint point) 
{
	if (m_bLockOutMsg)
	{
		// Prevent infinite loop
		TRACE0("WM_CONTEXTMENU locked out\n");
		return;
	}

	if ((pWnd->GetStyle() & WS_CHILD) != 0 && pWnd->GetParent() == this)
	{
		// First reflect to the control (using the message map)
		m_bLockOutMsg = TRUE;
		AfxCallWndProc(pWnd, pWnd->m_hWnd, WM_CONTEXTMENU, (UINT)pWnd,
MAKELPARAM(point.x, point.y));
		m_bLockOutMsg = FALSE;
	}

	Default();
}

- Klaus

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Sanjay -- SGUPTA@aegonusa.com
Thursday, April 25, 1996




OS: Win 95
VC++4.0

I am trying to create a dialog bar which behaves in a manner similar to 
dialog bar in
VC++ 4.0 developer studio - the dialog bar which contains tabs for class 
view, resource view etc. This is what I did to create the dialog bar:

I created the dialog template for the dialog bar. Derivved a class from 
CDialogBar as

CMyDialogBar : public CDialogBar.

In OnCreate for Mainframe, I create an object of type CMyDialogBar with 
template ID the one ICreated.

I override the Create function for CMyDialogBar. If Create returns fine, I 
create four
bitmap buttons which look like bitmaps. Bitmap buttons are members of 
CMyDialogBar.

 Also, I derived a class from CTreeCtrl as
CFormsTree : public CMyTree.
In the Create function for CMyDialogBar, I also create the
object for CMyTree. In OnCreate for CMyTree, I fill the tree with info. Now, 
to bring the
CMyDialogBar in command message routing, I override OnCmdMsg in my app 
classs, where I call OnCmdMsg for the dialog class first, if the message is 
not handled there, I pass the message along.

I want the popup menu to be handeled by the CFormsTree class itself, so I 
added the
popup context menu using component gallery to CFormsTree class. Now the 
problem is that when I click right mouse button in the tree control, popup 
menu soes not come up - I used spy++ to find out that the message is going 
to parent which inthis case is CMyDialogBar. If I double click with the 
right mouse button, then the message comes to tree control and pop up menu 
is displayed.

I wonder if I have to reflect the message back from the parent to the child. 
I will greatly appreciate any help on this.

Sanjay
sgupta@aegonusa.com

---

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