[Harrison Pratt]

I have a 64 bit VIP 9x application in which I cannot set custom tab stops in a dialog listbox control.
The listbox uses the default tab stops, no matter how I set the custom tab stops.

So, I created a tiny test application and found that custom tab stops work when compiled to a 32 bit application, but NOT when compiled to a 64 bit application with VIP 9x -- I haven't tested 10x yet.

64 BIT Dialog

Screenshot 2023-10-04 102150 64 BIT.png

32 BIT Dialog

Screenshot 2023-10-04 102053 32 BIT.png

[Thomas Linder Puls]

Perhaps you could zip and attach the project (without exe(64) and obj(64) directories).

[Harrison Pratt]

Test project is attached.
Press F8 to open the dialog, as usual.

Unravelling that glitch was breaking my brain for a while.

[Thomas Linder Puls]

I think it may be caused by a violation of some restrictions on the run stack. If that is indeed the case then it is caused by some kind of code generation bug. We will of course investigate it further.