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dotnet / pinvoke

A library containing all P/Invoke code so you don't have to import it every time. Maintained and updated to support the latest Windows OS.
MIT License
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SetWindowLongPtr on 32-bit #387

Closed ghost closed 6 years ago

ghost commented 6 years ago

According to the documentation for SetWindowLongPtr,

When compiling for 32-bit Windows, SetWindowLongPtr is defined as a call to the SetWindowLong function.

What this really means is that calls to PInvoke.User32.SetWindowLongPtr on 32-bit processes will (and do) result in an EntryPointNotFoundException

This fix exposes SetWindowLongPtr through User32.Helpers.cs by conditionally calling SetWindowLongPtr on 64-bit vs. SetWindowLong on 32-bit.

Also, adding a test.

Fixes #385