CPro-Forms, Dyalog14 & W10

[MBaas]

I recently moved to W10 on a new PC. Running Causeway-Forms on that machine has the strange effect that the Forms are shown w/o caption:

I noticed that the caption is displayed when the form looses focus and gets it back:

But it cannot be the solution to programmatically change focus etc.? Did anyone come across this already?

[Vince|Dyalog]

Hi Michael,

We have had reports of this before on Windows 8.1.

We investigated and are convinced that this is an issue with Windows that we cannot solve.

Regards,

Vince

[Dick Bowman]

Have you tried ⎕DL with a very small delay time? I've had similar anomalies and sorted them out that way - not a very clever thing to do, but it's been effective.

There's a more direct way to force window/queue flushes, but I can't remember it offhand.

[MBaas]

After investigating a further, I think I found the solution: these forms were using the old '3D' property (set to 'Dialog') and this caused the problems. So there is an easy repro:

Code: Select all

 'f'⎕WC'form'('caption' 'hello world')('3D' 'Dialog') ⋄ ⎕DQ'f'

Fix: omit '3D'

So I guess there is something Dyalog could do: ignore the (legacy & undocumented) property "3D" and all is well! :-) I will change my forms now and get rid of this.

[Vince|Dyalog]

Hi Michael,

Thanks for your investigations and your finding a workaround.

Regards,

Vince