catching close button

  • Thread starter Thread starter lord.zoltar
  • Start date Start date
L

lord.zoltar

How can I prevent the big close button in the top of the window from
closing the window?
I want to have and "are you sure?" confirmation so the user must press
"Yes" before the program ends. Right now, I've tried catching the
FormClosing and FormClosed events. The message box appears at the right
time, but since the form is already closing, it doesn't matter if the
user presses "Yes" or "No". how do I cancel the FormClosing?
 
[email protected] said:
How can I prevent the big close button in the top of the window from
closing the window?
I want to have and "are you sure?" confirmation so the user must press
"Yes" before the program ends. Right now, I've tried catching the
FormClosing and FormClosed events. The message box appears at the right
time, but since the form is already closing, it doesn't matter if the
user presses "Yes" or "No". how do I cancel the FormClosing?
Click to expand...


nevermind... solution is e.Cancel (to stop the Closing event) and
e.CloseReason.
(e is the FormClosing eventarg)
 
Just in case you (or other readers) may want to know about how to trap
the messages from the title bar buttons (maximize/minimize, restore,
and exit) then here's a post from Herfried Wagner a while back that may
help:

Thanks,

Seth Rowe

------------------------------------------------------
Is there a way I can get into a form's close/minimize/maximize events when
those buttons (the 3 small squared button in the upper right corner of a
form) are clicked?
Click to expand...

\\\
Private Const WM_SYSCOMMAND As Int32 = &H112

Private Const SC_MAXIMIZE As Int32 = &HF030
Private Const SC_MINIMIZE As Int32 = &HF020
Private Const SC_RESTORE As Int32 = &HF120
Private Const SC_CLOSE As Int32 = &HF060

Protected Overrides Sub WndProc(ByRef m As Message)
If m.Msg = WM_SYSCOMMAND Then
Select Case m.WParam.ToInt32()
Case SC_MAXIMIZE
Debug.WriteLine("Form gets maximized.")
Case SC_MINIMIZE
Debug.WriteLine("Form gets minimized.")
Case SC_RESTORE
Debug.WriteLine("Form gets restored.")
Case SC_CLOSE
Debug.WriteLine("Form gets closed.")
End Select
End If
MyBase.WndProc(m)
End Sub
///

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://classicvb.org/petition/>

------------------------------------------------------
 
Rowe,

Not in this case, the e.cancel is in this exit question in my idea the best.

Cor
 
Not in this case, the e.cancel is in this exit question in my idea the best.

I know - whenever I see a post about catching the close button I figure
the next question will be "ok, now how do I trap the other buttons?." I
figured posted it here would help out someone searching the archives
(well, if any one does that anymore :-) )

Thanks,

Seth Rowe
 
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