If the variable does not exist, just return.
[wine] / dlls / d3d8 / volumetexture.c
2005-01-24  Paul Vriens- use Interlocked* functions in AddRef and Release.
2004-09-08  Alexandre JulliardRemoved some more uses of the non-standard ICOM_THIS...
2004-09-08  Hans LeidekkerFix signed/unsigned comparison warnings.
2004-08-23  Alexandre JulliardGet rid of the no longer used ICOM_MSVTABLE_COMPAT_Dumm...
2004-08-12  Alexandre JulliardGet rid of the non-standard ICOM_VTABLE macro.
2003-09-05  Alexandre JulliardFixed header dependencies to be fully compatible with...
2003-06-18  Raphael Junqueira- dsound and d3d works better when x11drv locks/unlocks...
2003-06-04  Raphael Junqueira- cleaning of volume.c/volumetexture.c as done previous...
2003-06-04  Raphael Junqueira- some cleanups
2003-06-04  Raphael Junqueira- implemented render to surfaces (and render to new...
2003-05-13  Raphael Junqueira- moved loading code of volume texture to VolumeTexture...
2003-05-12  Raphael Junqueira- surface pool init fixes
2003-05-11  Raphael Junqueira- minor COM fixes (fixes some crashes on stupid games)
2003-04-12  Alexandre JulliardHeader files must not include config.h.
2003-01-14  Raphael JunqueiraBeginning of more COM compliant behavior:
2002-12-18  Raphael Junqueira - some fixes in CreateDevice init
2002-10-21  Jason EdmeadesAdd the basic support for volume textures / volumes...
2002-09-27  Jason EdmeadesInitial D3D8 implementation.