SetupInstallFromInfSection这个函数怎么用老返回错误呢？

bResult = SetupInstallFromInfSection(
            hWnd,
            hInf,
            INF_OPTION1,
            SPINST_ALL,//SPINST_REGISTRY | SPINST_INIFILES,
            NULL,
            szSourcePath,//szSourcePath,    // Path where the source files are located
            0,//SP_COPY_NEWER,
            NULL,//(PSP_FILE_CALLBACK) MyQueueCallback,
            &MyInstallData,//NULL,
            NULL,
            NULL
            );
就这样用怎么不行呢，返回1010

第五个参数不能为空。

RelativeKeyRoot
This optional parameter must be specified if Flags includes SPINST_REGISTRY or SPINST_INI2REG. Specifies a handle to a registry key to be used as the root when the INF file specifies HKR as the key.