d3d9: Set IDirect3DDevice9Impl_GetVertexShader return value to NULL on error

Henri Verbeet hverbeet at gmail.com
Tue Dec 23 07:07:42 CST 2008

2008/12/23 Stefan Dösinger <stefan at codeweavers.com>:
> Hi,
> Please write a test for this. This behavior differs from function to
> function unfortunately. Some functions do not set the value to NULL, and
> some apps depend on this.
> I think dlls/d3d9/tests/shader.c is a good place to put this test.
No, this patch is obviously correct.

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