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Editorial Team
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Asked: 2026-05-31T08:23:39+00:00

Have an application with a GDI leak that will eventually hit 10,000 allocated GDI

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Have an application with a GDI leak that will eventually hit 10,000 allocated GDI objects and crash. I tried increasing the GDIProcessHandleQuota to 20,000, but the program still crashed when it reached 10,000 objects. We’re currently working on patching this leak, but out of curiosity–is there a way to increase the GDI limit for a single process? Or is 10k an individual application’s hard limit?

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  1. Editorial Team

    There is a solution that might work. I deal with a misbehaved vendor’s app here that allocates tons of GDI objects and this solution allows it to work most of the time…

    Do

    reg query "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\SubSystems" /v windows

    Look for SharedSection= which should be 3 numbers separated by commas. Increase the middle number by 1024 at a time and see if that solves your problem. You are controlling the amount of “desktop heap” with this variable which has in the past allowed me to get a misbehaving GDI running.

    Look at KB184802 for a little more info. Search for SharedSection to find the relevant part of the page.

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