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PowerBuilder 2022 - Why is the Resize event firing before the Constructor/Open events?
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  1. Devasenaapathy S
  2. PowerBuilder
  3. Friday, 7 August 2026 05:52 AM UTC

Hi Everyone,

I'm facing a very strange issue in a PowerBuilder 2022 application and would appreciate any suggestions from experienced PowerBuilder developers.

I have a window (w_open_wo) that is opened using the standard OPEN() function:

OPEN(w_open_wo)

Inside the Open event of this window, I create a resize service object:

invoResize = CREATE n_cst_resize

Later, in the Resize event, I call:

invoResize.Event pfc_Resize(sizetype, This.WorkSpaceWidth(), This.WorkSpaceHeight())

When I step through the code (F8) after executing:

OPEN(w_open_wo)

the debugger does not enter any of the following events:

Constructor Event
Open Event

Instead, it immediately enters the Resize event.

When I check:

IsValid(invoResize)

it returns FALSE, because the Open event never executed and therefore:

invoResize = CREATE n_cst_resize

was never reached.

As a result, I am getting Null Object Reference.

 

Thanks, and Regards

Devasenaapathy S

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