Using @Error

[CaptainBeardsEyesBeard]

Hi I'm just trying to figure out error handling in Autoit 

I'm trying to learn error handling in Autoit and at the moment I'm having trouble with switching to the correct window however it is executing the Else statement not the If statement. 

I'll also point out it's not switching to the Solcase application

 

WinActivate("SolCase 7 - a LexisNexis Visualsfiles product") ; Focus Elite window
If @error Then
    MsgBox($MB_SYSTEMMODAL, "Error", "Switching window")
 Else
    MsgBox($MB_SYSTEMMODAL, "Error", "blah blah")
    EndIf

Thanks

Edited March 26, 2018 by CaptainBeardsEyesBeard

[Jos]

I guess you need:

$wHnd=WinActivate("SolCase 7 - a LexisNexis Visualsfiles product") ; Focus Elite window
If $wHnd Then
    MsgBox($MB_SYSTEMMODAL, "Found window", "Switching window")
Else
    MsgBox($MB_SYSTEMMODAL, "Error", "$wHnd is 0 so window not found")
EndIf

since the helpfile states:

Quote

Return Value

Success:	the handle of the window.
Failure:	0 if window is not found or cannot be activated.

Remarks

You can use the WinActive() function to check if WinActivate() succeeded. If multiple windows match the criteria, the window that was most recently active is the one activated. WinActivate() works on minimized windows. However, a window that is "Always On Top" could still cover up a window you Activated.

After a successful activation @extended is set to 1 if the the window was already active, 2 if not.

Jos

[CaptainBeardsEyesBeard]

Nice one thanks. 

 

I had read previously that the @error is used as a try/catch method in autoit. 

 

In what instance would I use @error?