Using COM component invalid pointer error

[Ash_VCPP]

Hi All, I have created COM component(dll) and created one client to use it, Please finnd the code of client:-

HRESULT hr = CoInitialize(0); //CoCreateInstance( SCRIPTOBJLib::IScriptObjPtr sobj; //sobj->QueryInterface(IId_,void* &vp); //HRESULT hRes = CComObject<CScriptObj>::CreateInstance(&sobj); //CreateInstance(NULL,IID_IUnknown,(void*)&vp); //HRESULT hres = sobj.CreateInstance ( __uuidof(SCRIPTOBJLib::IScriptObj) ); //HRESULT hres = sobj.CreateInstance("ScriptObj 1.0 Type Library"); //at this point i am getting the error sobj->SetLanguage((unsigned short *)"VBScript"); CoUninitialize();

Please give me some solutions coz i tried every possible way.

Thanks A Ton Ash_VCPP walking over water is just knowing where the stones are.....

[KarstenK]

your code isnt readable. :wtf: What are the error codes? Google them

Press F1 for help or google it. Greetings from Germany

[Ash_VCPP]

Hi KarstenK, I am getting value of hresult= -2147221164 Please find the code below: HRESULT hr = CoInitialize(0); //CoCreateInstance( SCRIPTOBJLib::IScriptObjPtr sobj; //sobj->QueryInterface(IId_,void* &vp); //HRESULT hRes = CComObject<CScriptObj>::CreateInstance(&sobj); //CreateInstance(NULL,IID_IUnknown,(void*)&vp); HRESULT hres = sobj.CreateInstance ( __uuidof(SCRIPTOBJLib::IScriptObj) ); //HRESULT hres = sobj.CreateInstance("ScriptObj 1.0 Type Library"); sobj->SetLanguage((unsigned short *)"VBScript"); CoUninitialize();

Thanks A Ton Ash_VCPP walking over water is just knowing where the stones are.....

[Lost User]

I think that the issue is that you are using getting the ID of the interface: __uuidof(SCRIPTOBJLib::IScriptObj) You need the ID of the coclass in the CreateInstance call. It is probably __uuidof(SCRIPTOBJLib::ScriptObj) depending on how the object has been implemented.

[Ash_VCPP]

But from the library i am getting two things: 1.IScriptObj 2.IScriptObjptr So what else i can try.

Thanks A Ton Ash_VCPP walking over water is just knowing where the stones are.....

[KarstenK]

Please use for HRESULT hexadecimal values (Just do it! if you want to run COM) if you google that (-2147221164 => hex 80040154) you find things like "class not registered". This means that SCRIPTOBJLib::IScriptObj isnt registered properly. ->regsvr32

Press F1 for help or google it. Greetings from Germany

[Lost User]

I note the poster has two threads going on this question, one here and one in the C++ forum. I have now bowed out.