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CMenu

Posted on 2000-03-09
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Last Modified: 2013-11-20
Hi,

I want to show popup menu in my program (when user click right mouse button). I do this by followin way:

void CTESTDlg::OnRButtonDown(UINT nFlags, CPoint point) {
      CDialog::OnRButtonDown(nFlags, point);
 
  CMenu *PopupMenu;

  PopupMenu = new CMenu;
  PopupMenu->CreatePopupMenu();
  PopupMenu->AppendMenu(MF_STRING, 1, "Test1");
  PopupMenu->AppendMenu(MF_STRING, 2, "Test2");
  PopupMenu->AppendMenu(MF_STRING, 3, "Test3");
  PopupMenu->AppendMenu(MF_STRING, 4, "Test4");
  PopupMenu->AppendMenu(MF_STRING, 5, "Test5");

  POINT DesktopPoint;
  DesktopPoint.x = point.x;
  DesktopPoint.y = point.y;
  ClientToScreen(&DesktopPoint);
 
  BOOL bResponse = PopupMenu->TrackPopupMenu(TPM_LEFTALIGN, DesktopPoint.x, DesktopPoint.y, this);
}

How can I get selected item ID (witch element user select in popmenu) after PopupMenu->TrackPopupMenu()?

regards,
  mahno
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Question by:mahno
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2 Comments
 
LVL 31

Accepted Solution

by:
Zoppo earned 80 total points
ID: 2600543
Hi mahno,

by default you do not get the selected id but the framework sends to your application a WM_COMMAND message with the menu identifier in the same manner as frame window menu does. So, you can simply add a command message handler and a update command message handler using ClassWizard.

The other possibility is to pass the TrackPopupMenu the TPM_RETURNCMD flag. This causes the TrackPopupMenu function to wait until a item is selected or the menu is canceled. The return value is the id. I.e.:


UINT mId = PopupMenu->TrackPopupMenu(TPM_RETURNCMD|TPM_LEFTALIGN, DesktopPoint.x, DesktopPoint.y, this);
if ( mId == 0 )
{
 // canceled or error
}

BTW, I'm not really sure if the TPM_RETURNCMD flag is fully supported by CMenu::TrackPopupMenu(), but I know it is with ::TrackPopupMenu()...

hope that helps,

ZOPPO
0
 
LVL 1

Author Comment

by:mahno
ID: 2600643
Thanks, Zoppo
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