关于nsis调用COM库,通过DllGetClassObject地址找到IID_IClassFactory类厂,然后通过->13偏移调用,这个->13是啥意思呢
例子
System::Call "kernel32::GetProcAddress(i $hUtility, m 'DllGetClassObject') i .r2"
System::Call "::$2(g '$CLSID_SOME', g '${IID_IClassFactory}', *i .r3) i .r10"
System::Call "$3->3(i 0, g '${IID_IWrapper}', *i .r4) i .r10"
这里的->3是标识啥?偏移多少呢?