How do I know if my GDI is leaking?

How do I know if my GDI is leaking?

Leaking GDI objects can be seen from the task manager or from Process Explorer. (Well you don’t see the leaks, but you can see if object uasage count continually goes up.) There are also tools that allow to view GDI objects by type, such as GDIView[a], DeLeaker, DPUS or the GDIDebug (sourecode).

How can we reduce GDI objects?

Suggested Solution:

1. Open Regedit (via Run > type ‘regedit’)
2. Locate to the key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\GDIProcessHandleQuota.
3. Right click on the ‘GDIProcessHandleQuota’ and click ‘Edit’.
4. Change the registry key to the maximum process limit 16,384; set the BASE to DECIMAL.

What is GDI view?

Description. GDIView is a unique tool that displays the list of GDI handles (brushes, pens, fonts, bitmaps, and others) opened by every process. It displays the total count for each type of GDI handle, as well as detailed information about each handle.

How do I change GDI object limits?

In summary, the workaround is:

1. Increase the registry setting for GDIProcessHandleQuota in HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Windows.
2. The default setting is 10000 decimal. It can be increased to 65535 decimal.
3. It may be necessary to reboot the computer for the change to get applied.

How do I increase my GDI object limit?

How to solve the problem of GDI object leakage?

When we call DeleteObject (hFont); after each use (In line 75 and line 88 of my sample), and repeat the above steps, we will find that GDI Objects will not increase, thus solving the problem of object leakage. Thanks for contributing an answer to Stack Overflow!

How to see the number of objects that wrap GDI resources?

You will need to use any profiler to view whether the number of objects that wrap GDI resources (Sytem.Drawing.Brush, Bitmap, Pen, Region, Graphics) increases. If it is the case, you can stop reading this article.

Did adding release DC to GDI+ do anything?

edit: added release DC did not do anything! My GDI objects still rises up to 10,000! Show activity on this post. GdiplusShutdown must be called after all GDI+ objects are removed.

Where is critical 10000 in GDI+?

The GDI objects column on the Details tab of Task Manager shows critical 10000 (if this column is absent, you can add it by right-clicking the table header and selecting Select Columns). Message: A generic error occurred in GDI+. During development in С/С++, all GDI methods, like Create%SOME_GDI_OBJECT%, began to return NULL. Why?