VB6 SetFocus and Windows XP - error 5 1

[Paddyo]

Hi

I have a problem when running executable code under Windows XP.

Sometimes i get an 'invalid procedure call or Argument' Error 5, when I try to set the focus to a control.

Im my code I check to see if the control is enabled and only then do I try to set the focus to it - but sometimes I still get the error.

Is this a problem with Windows XP - Im confident my code is correct. I have read else where that a doevents might solve the porblem. However I do not really want to use the DoEvents.

has anyone else come up with this problem and if so was there a resolution to it.

Thank you in advance
Paul

 

[CmPaiva]

Please verify that the control is LOADED, AND VISIBLE at the time of SetFocus. Probably, by doing

if ctrl.Visible then ctrl.SetFocus

will avoid timing problems related with events being processed out of order we expected!

I hope this help you

Lucky
Carlos Paiva

 

[Paddyo]

Thanks for replying Paiva

The control is indeed loaded and visible.

The program and code works fine most of the time, infact it works all of the time on Windows 98 machines.

The error occurs imtermittantly.

Paul

 

[rzs0502]

Hi

I'm having the same problem but mine occurs constantly.
I've just seen that the object is not visible even though it is...
ie

if text1.visible=true then
msgbox("visible&quot
end if

I'm trying to find a solution

 

[rzs0502]

Hi Paul

Managed to work around it

I've had to show the form before all the objects could getfocus

Hope it helps...

Rakesh Singh
AIX/Linux Div. STANLIB

 

[Paddyo]

I dont think this will solve my problem.

The form is already loaded and details have been entered.

The user clicks the save button, the data is saved and then I want to disable lots of controls, enable the control I want to set the focus and then set the focus.

Quite striaght forward - but does not work all of the time.

Glad you got your problem sorted.

Paul

 

[rzs0502]

Mine occured on a logon dialog
Error appeared when trying to setfocus on the password textbox when an incorrect password was entered
Even though the form was loaded and visiible, I requested a frmlogon.show (on the theory that the objects visiblity state could not be correctly determined) and the error vanished.

Good luck

 

[Paddyo]

Thanks for the replies

I think I will try the visibility property.

My other problem is that I cannot get it to happen. Its only happening on customers sites. So testing is a reall problem.

I will let you know how I get on

Paul

 

[Paddyo]

Hi Again

Well we finally got the error to happen in our offices maybe once out of every 20 times.

After taking the suggestion of rzs0502 to put in a formname.show before the setfocus we could not get the error to happen again. So thank you for you help. You deserve a star.

Paul

 

[rzs0502]

Glad it worked...

Thanks