Visual Basic - Need list of form events that always happen?

Author

Need list of form events that always happen?

U-CDK_CHARLES\\Charles

2004-09-28, 3:55 pm

List:

I'm searching the helpfiles and not finding the information. I'm
probably using the wrong terms.

Anyway.

When I display a form, what methods are invoked when?

When I hide a form, same question.

I'm chasing what seems to be a race condition, but what I suspect is
really happening is that I don't fully understand what methods are being
invoked when.

Is there a difference between invoking a form from another method and
using Me.Show?

Thanks

Charles

Ken Halter

2004-09-28, 3:55 pm

U-CDK_CHARLES\Charles wrote:
> List:
>
> I'm searching the helpfiles and not finding the information. I'm
> probably using the wrong terms.
>
> Anyway.
>
> When I display a form, what methods are invoked when?

The best way to find this kind of info is to create a new project and
place a Debug.Print line in each of the forms events. Save that form in
your Templates folder for future use. Here.... I have an addin that
makes this kind of thing quick and easy... watch for word wrap before
running.... comment out the events you don't want to see (most likely
MouseMove cause you'll get "information overload")
'=============
Option Explicit

Private Sub Form_Activate()
Debug.Print "'Form1:Form_Activate", Timer
End Sub
Private Sub Form_Click()
Debug.Print "'Form1:Form_Click", Timer
End Sub
Private Sub Form_DblClick()
Debug.Print "'Form1:Form_DblClick", Timer
End Sub
Private Sub Form_Deactivate()
Debug.Print "'Form1:Form_Deactivate", Timer
End Sub
Private Sub Form_DragDrop(Source As Control, X As Single, Y As Single)
Debug.Print "'Form1:Form_DragDrop", Timer
End Sub
Private Sub Form_DragOver(Source As Control, X As Single, Y As Single,
State As Integer)
Debug.Print "'Form1:Form_DragOver", Timer
End Sub
Private Sub Form_GotFocus()
Debug.Print "'Form1:Form_GotFocus", Timer
End Sub
Private Sub Form_Initialize()
Debug.Print "'Form1:Form_Initialize", Timer
End Sub
Private Sub Form_KeyDown(KeyCode As Integer, Shift As Integer)
Debug.Print "'Form1:Form_KeyDown", Timer
End Sub
Private Sub Form_KeyPress(KeyAscii As Integer)
Debug.Print "'Form1:Form_KeyPress", Timer
End Sub
Private Sub Form_KeyUp(KeyCode As Integer, Shift As Integer)
Debug.Print "'Form1:Form_KeyUp", Timer
End Sub
Private Sub Form_LinkClose()
Debug.Print "'Form1:Form_LinkClose", Timer
End Sub
Private Sub Form_LinkError(LinkErr As Integer)
Debug.Print "'Form1:Form_LinkError", Timer
End Sub
Private Sub Form_LinkExecute(CmdStr As String, Cancel As Integer)
Debug.Print "'Form1:Form_LinkExecute", Timer
End Sub
Private Sub Form_LinkOpen(Cancel As Integer)
Debug.Print "'Form1:Form_LinkOpen", Timer
End Sub
Private Sub Form_Load()
Debug.Print "'Form1:Form_Load", Timer
End Sub
Private Sub Form_LostFocus()
Debug.Print "'Form1:Form_LostFocus", Timer
End Sub
Private Sub Form_MouseDown(Button As Integer, Shift As Integer, X As
Single, Y As Single)
Debug.Print "'Form1:Form_MouseDown", Timer
End Sub
Private Sub Form_MouseMove(Button As Integer, Shift As Integer, X As
Single, Y As Single)
Debug.Print "'Form1:Form_MouseMove", Timer
End Sub
Private Sub Form_MouseUp(Button As Integer, Shift As Integer, X As
Single, Y As Single)
Debug.Print "'Form1:Form_MouseUp", Timer
End Sub
Private Sub Form_OLECompleteDrag(Effect As Long)
Debug.Print "'Form1:Form_OLECompleteDrag", Timer
End Sub
Private Sub Form_OLEDragDrop(Data As DataObject, Effect As Long, Button
As Integer, Shift As Integer, X As Single, Y As Single)
Debug.Print "'Form1:Form_OLEDragDrop", Timer
End Sub
Private Sub Form_OLEDragOver(Data As DataObject, Effect As Long, Button
As Integer, Shift As Integer, X As Single, Y As Single, State As Integer)
Debug.Print "'Form1:Form_OLEDragOver", Timer
End Sub
Private Sub Form_OLEGiveFeedback(Effect As Long, DefaultCursors As Boolean)
Debug.Print "'Form1:Form_OLEGiveFeedback", Timer
End Sub
Private Sub Form_OLESetData(Data As DataObject, DataFormat As Integer)
Debug.Print "'Form1:Form_OLESetData", Timer
End Sub
Private Sub Form_OLEStartDrag(Data As DataObject, AllowedEffects As Long)
Debug.Print "'Form1:Form_OLEStartDrag", Timer
End Sub
Private Sub Form_Paint()
Debug.Print "'Form1:Form_Paint", Timer
End Sub
Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
Debug.Print "'Form1:Form_QueryUnload", Timer
End Sub
Private Sub Form_Resize()
Debug.Print "'Form1:Form_Resize", Timer
End Sub
Private Sub Form_Terminate()
Debug.Print "'Form1:Form_Terminate", Timer
End Sub
Private Sub Form_Unload(Cancel As Integer)
Debug.Print "'Form1:Form_Unload", Timer
End Sub
'=============

> When I hide a form, same question.

You'll see when you run the code above.

> I'm chasing what seems to be a race condition, but what I suspect is
> really happening is that I don't fully understand what methods are being
> invoked when.
>
> Is there a difference between invoking a form from another method and
> using Me.Show?

Not as far as the events are concerned. Try it with the code above.

These may come in handy....

Differences Among Form's Initialize, Load, and Activate Events
http://support.microsoft.com/defaul...kb;en-us;138819

Life Cycle of Visual Basic Forms
http://msdn.microsoft.com/library/d...lbasicforms.asp

btw... if you ever create a usercontrol, the Events template (you'll see
it when adding a usercontrol to the project) is basically the
Debug.Print stuff above in usercontrol events instead of form events.

--
Ken Halter - MS-MVP-VB - http://www.vbsight.com
Please keep all discussions in the groups..

Brian H.

2004-09-28, 3:55 pm

Hey Charles,

Main points for you to know are:
- Me.Hide will not inherently trigger an event, it may trigger
Form_Deactivate to fire if the form were active when Me.Hide ran but I'm not
sure about this and it's not something you would want to rely on.
- When you load a form the Form_Load event will run. Using Me.Show means
that the form is already loaded, so Form_Load will not fire again, however if
you show the form from another form/module using FormName.Show, the Form_Load
event will run.
-When the form is unloaded (Unload Me, or Unload FormName when doing from
another form) the Form_Unload event will run.
-If you need certain actions to occur when showing or hiding a form that is
already loaded, you could make a custom procedure that has a boolean argument
(i.e. blnHide) and just call that procedure instead of using me.show or
me.hide, passing the appropriate value to the procedure and then within the
procedure, depending on the value of blnHide, either hide or show the form
and run appropriate actions at the same time.

Hope this helps,

Brian H.

"U-CDK_CHARLES\\Charles" <"Charles Krug" wrote:

> List:
>
> I'm searching the helpfiles and not finding the information. I'm
> probably using the wrong terms.
>
> Anyway.
>
> When I display a form, what methods are invoked when?
>
> When I hide a form, same question.
>
> I'm chasing what seems to be a race condition, but what I suspect is
> really happening is that I don't fully understand what methods are being
> invoked when.
>
> Is there a difference between invoking a form from another method and
> using Me.Show?
>
> Thanks
>
>
> Charles
>
>

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