1>LINK : warning LNK4098: defaultlib 'LIBCMTD' conflicts with use of other libs; use /NODEFAULTLIB:library
1>QtGuid.lib(qpaintengine_d3d.obj) : error LNK2001: unresolved external symbol _IID_ID3DXEffectStateManager
1>E:\Projects\MyQT\Debug\MyQT.exe : fatal error LNK1120: 1 unresolved externals
这个是什么问题?我QT编译的时候支持Direct3D的。