Context Menu in Dialog based application

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Hi,

I have an application where I need to show context menu in List Control. Does anybody have idea how to show it.

Regds
SNI

Posted 12-Apr-13 23:35pm

SNI

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2 solutions

Solution 2

Take a look at this step-by-step explanation: http://www.functionx.com/visualc/howto/contextmenu.htm[^]

Sometimes you may want to display a context menu. That is, if the user right-clicks, instead of a (left) click, you may want to display a particular menu. Many MFC controls don't provide this functionality on their own; you would have to apply the action on the parent control.

1.Start Microsoft Visual C++ MFC Application named ControlContext
2.Create it as Dialog Box without the AboutBox
3.Set the Dialog Title to Context-Sensitive Menu on Controls
4.Add a button to dialog box. Change its ID to IDC_SUBMIT_BTN and its Caption to Submit
5.Add a check box to the dialog box. Change its ID to IDC_APPROVED_CHK and its Caption to Approved: .... (and so long)

Posted 13-Apr-13 3:19am

Leo Chapiro

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Jochen Arndt · Accepted Answer · 2013-04-13T03:19:00

Solution 1

There is no difference between dialog and frame based applications regarding context menus of controls. To add a context menu to a list control, create the menu using the resource editor and add the ON_WM_CONTEXTMENU() / OnContextMenu() handler to your list control class:

C++

void CMyListCtrl::OnContextMenu(CWnd* pWnd, CPoint point)
{
    CMenu menu;
    VERIFY(menu.LoadMenu(IDR_MYLIST_POPUP_MENU));
    CMenu *pSub = menu.GetSubMenu(0);
    // Modify menu items here if necessary (e.g. gray out items)
    int nCmd = pSub->TrackPopupMenuEx(
        TPM_LEFTALIGN | TPM_RIGHTBUTTON | TPM_VERPOSANIMATION | TPM_RETURNCMD | TPM_NONOTIFY,
        point.x, point.y, AfxGetMainWnd(), NULL);
    if (nCmd)
        SendMessage(WM_COMMAND, nCmd);
}

Note that using AfxGetMainWnd() requires that the pointer to your main dialog window is assigned to the CWinApp member variable m_pMainWnd in InitInstance().

Posted 13-Apr-13 3:19am

Jochen Arndt

Comments

SNI 16-Apr-13 13:20pm

Thanks for ur reply. Is there any way to show background image for menu and changing text color for menu options.

Jochen Arndt 16-Apr-13 14:16pm

This requires owner drawn menus. Examples can be found searching for "cmenu owner draw" and "cmenu user draw". This CP article might help: http://www.codeproject.com/Articles/2354/Owner-Drawn-Menu-with-Icons-Titles-and-Shading

Premnath Mali 22-Feb-17 7:00am

for this I'm getting error
Unhandled exception at 0x00fc8689 in MenuPratice.exe: 0xC0000005: Access violation reading location 0x00000004.

Jochen Arndt 22-Feb-17 7:19am

It is a general example about creating a context menu. It must be adapted to your project.

Ensure that:
- The menu resource exists (this is checked in debug builds using the VERIFY() macro)
- It is a valid menu resource (pSub will be NULL if not)
- Your CWinApp derived class has initialised the m_pMainWnd member variable (as clearly stated)

If you still have problems create a debug build and use the debugger to find which variable is out of range generating the access violation.

Because this is an old answered thread you should not use it to ask new questions. You might open your own question if you are still stuck.

Premnath Mali 22-Feb-17 7:01am

I just wanted to show on right click anywhere in the dialog please help

Premnath Mali 22-Feb-17 7:04am

instead of using submenu I used menu to track after that When I right click on the area, a thin rectangle pops up instead of full menu