What about USERSEEUSERDO and GDISEEGDIDO?

1 · Raymond Chen · July 31, 2019, 3:15 p.m.
In Windows 3.1, there were undocumented functions named USER­SEE­USER­DO and GDI­SEE­GDI­DO. Surely there’s a story behind these funny names. Of course. These functions were used for internal testing purposes. They allowed stress tests to do things like allocate extra memory in the desktop heap in order to trigger low-memory conditions in the window manager. The post What about USERSEEUSERDO and GDISEEGDIDO? appeared first on The Old New Thing....
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