• Home
 · 
• Windows API Call/Explanation
 · 
• Fixing Popupmenu 'bug' from system tray

Fixing Popupmenu 'bug' from system tray

Simple code + explaination of why popup menus don't disapear like most app's menus when called from the system tray. Very hard problem, very simple answer. (this has no minimize to system tray code in it)

Rate Fixing Popupmenu 'bug' from system tray

• 1
• 2
• 3
• 4
• 5

(30(30 Vote))

Fixing PopupMenu Fault when used in
a System Tray Project
    If you have ever sent your app to the system tray and created a click event to popup a menu using Popupmenu (menuname) you will be aware of the small 'bug'.
    By default, your application  WILL NOT be set as the active app so when you call the popupmenu function, it will create the menu out of focus. This means it cannot recieve the 'lost focus' message and will not close when you click somewhere else. This is a very simple thing to fix but nobody seems to use it. All you have to do is set the Form owner of the menu to Focus :)


eg: (from standard sys tray form_mousemove event)

'(place in module)

Public  Declare Function SetForegroundWindow
 Lib "user32" (ByVal hwnd
 As Long)  As Long







'(place in form_mousemove event)

Private Sub Form_MouseMove(Button  As
Integer, Shift  As Integer, X
 As Single, Y  As
Single)


        If Me.WindowState
 = vbMinimized then

           
' window is minimized must be in system tray or MouseMove event would not
execute

            Dim
lngMsg  As Long

            Dim result
 As Long

               
' get the WM Message passed via X

               
' since X is by default mes. in Twips, 

               
' devide it by the number of twips / pixel

               
' so we recieve the proper value

            lngMsg  = X / Screen.TwipsPerPixelX

            
            Select Case lngMsg

                
case WM_RBUTTONUP ' right button 

                           
SetForegroundWindow Me.hwnd

                           
Popupmenu Me.mnuFile

            end select

        end if

end sub

 
 and it's that simple. Can't remember who told me this but thanks if it were ye. :)