Symptom

When a PowerBuilder application is complex and contains a lot of windows and controls, if the number of its GDI Objects or User Objects is getting close to 10000, the PowerBuilder application will crash easily.


Environment 

PowerBuilder 2017 or later


Cause

This is a Windows OS’s default feature. When the number of the GDI Objects or User Objects value exceeds the default 10000, the Windows application will crash.


Resolution

You can modify the Registry to increase the limit for GDI Objects and User Objects to solve this problem.

All following Windows registry key values are 10000 by default. We suggest that you change them to 18000 then verify if the problem is solved.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\GDIProcessHandleQuota

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\USERProcessHandleQuota

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Windows\GDIProcessHandleQuota

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Windows\USERProcessHandleQuota

Registry Editor

For more information about GDI Objects and User Objects, please refer to:

https://learn.microsoft.com/en-us/windows/win32/sysinfo/gdi-objects

https://learn.microsoft.com/en-us/windows/win32/sysinfo/user-objects

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