catch minimization

[iwdu15]

hi, how can i catch when the user clicks the minimize button on the form and
do a certain event then? what im looking to do is when the user minimizes the
form, to put the form on the system tray. i kno how to put it on the tray but
how do i catch when its been minimized? thanks
--
-iwdu15

[jdm]

Re: catch minimization

=?Utf-8?B?aXdkdTE1?= <iwdu15@discuss ions.microsoft. com> wrote in
news:B3374D3F-A458-413F-B25E-876843247474@mi crosoft.com:
[color=blue]
> hi, how can i catch when the user clicks the minimize button on the
> form and do a certain event then? what im looking to do is when the
> user minimizes the form, to put the form on the system tray. i kno how
> to put it on the tray but how do i catch when its been minimized?
> thanks[/color]

there's an example here

http://www.visualbasicforum.com/showthread.php?t=241017

:

Protected Overrides Sub WndProc(ByRef m As _
System.Windows. Forms.Message)
Const WM_SYSCOMMAND As Long = &H112
Const SC_MINIMIZE As Long = &HF020&
Const SC_MAXIMIZE As Long = &HF030&
' See if this is WM_SYSCOMMAND.
If m.Msg = WM_SYSCOMMAND Then
' Ignore SC_MINIMIZE and SC_MAXIMIZE commands.
If (m.WParam.ToInt 32 And &HFFF0&) = SC_MINIMIZE Then
MsgBox("Can't Minimize!!")
Exit Sub
End If
If (m.WParam.ToInt 32 And &HFFF0&) = SC_MAXIMIZE Then
MsgBox("Can't Maximize!!")
Exit Sub
End If
End If
MyBase.WndProc( m)
End Sub

[iwdu15]

Re: catch minimization

awsome thanks

[Herfried K. Wagner [MVP]]

Re: catch minimization

"jdm" <null@invalid.c om> schrieb:[color=blue]
> Protected Overrides Sub WndProc(ByRef m As _
> System.Windows. Forms.Message)
> Const WM_SYSCOMMAND As Long = &H112
> Const SC_MINIMIZE As Long = &HF020&
> Const SC_MAXIMIZE As Long = &HF030&[/color]

Note that 'Long' is a 64-bit datatype in VB.NET. Thus you'll have to change
the longs to ints:

\\\
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.ToInt3 2()
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/>

[Jay B. Harlow [MVP - Outlook]]

Re: catch minimization

iwdu15,
In addition to the other comments.

I normally simply handle the Resize event.

Something like:

Protected Overrides Sub OnResize(ByVal e As System.EventArg s)
MyBase.OnResize (e)
Select Case Me.WindowState
Case FormWindowState .Normal
MessageBox.Show ("Form was restored",
Application.Pro ductName)
Case FormWindowState .Minimized
MessageBox.Show ("Form was minimized",
Application.Pro ductName)
Case FormWindowState .Maximized
MessageBox.Show ("Form was maximized",
Application.Pro ductName)
End Select
End Sub


--
Hope this helps
Jay [MVP - Outlook]
T.S. Bradley - http://www.tsbradley.net


"iwdu15" <iwdu15@discuss ions.microsoft. com> wrote in message
news:B3374D3F-A458-413F-B25E-876843247474@mi crosoft.com...
| hi, how can i catch when the user clicks the minimize button on the form
and
| do a certain event then? what im looking to do is when the user minimizes
the
| form, to put the form on the system tray. i kno how to put it on the tray
but
| how do i catch when its been minimized? thanks
| --
| -iwdu15