程序在连接的时候报错，请大家帮忙 error LNK2019

wpyax

main.obj : error LNK2019: unresolved external symbol _Direct3DCreate9@4 referenced in function "long __cdecl InitD3D(struct HWND__ *)" (?InitD3D@@YAJPAUHWND__@@@Z)
main.obj : error LNK2019: unresolved external symbol _D3DXLoadMeshFromXW@32 referenced in function "long __cdecl InitGeometry(void)" (?InitGeometry@@YAJXZ)
main.obj : error LNK2019: unresolved external symbol _D3DXMatrixPerspectiveFovLH@20 referenced in function "void __cdecl SetupMatrices(void)" (?SetupMatrices@@YAXXZ)
main.obj : error LNK2019: unresolved external symbol _D3DXMatrixLookAtLH@16 referenced in function "void __cdecl SetupMatrices(void)" (?SetupMatrices@@YAXXZ)
C:\Documents and Settings\wpyax\My Documents\Visual Studio 2005\Projects\2\Debug\2.exe : fatal error LNK1120: 4 unresolved externals
Build log was saved at "file://c:\Documents and Settings\wpyax\My Documents\Visual Studio 2005\Projects\2\2\Debug\BuildLog.htm"

hanma

D3D9.LIB未加入工程。