c++ Programming Glossary: ppv
Function pointers casting in C++ http://stackoverflow.com/questions/1096341/function-pointers-casting-in-c convert it to void which is also an object pointer void ppv reinterpret_cast void object_ptr ppv gptr assign the address.. object pointer void ppv reinterpret_cast void object_ptr ppv gptr assign the address in the memory cell named by 'gptr' .. that is pointed to by the memory cell that is named by 'ppv' Since the above code is a little cryptic the following explanation..
Virtual Webcam Driver http://stackoverflow.com/questions/1627448/virtual-webcam-driver to HRESULT CVCamStream QueryInterface REFIID riid void ppv 8th call when it reaches to last if I mean return CSourceStream.. to last if I mean return CSourceStream QueryInterface riid ppv It's in 17th line of Filters.cpp Why do you think I'm getting..
When implementing several COM interfaces at once how do I upcast to IUnknown? http://stackoverflow.com/questions/1742329/when-implementing-several-com-interfaces-at-once-how-do-i-upcast-to-iunknown to use either of the two ways if iid __uuidof IUnknown ppv static_cast IPersistFile this static_cast IPersistFile this.. this AddRef return S_OK or if iid __uuidof IUnknown ppv static_cast IPersistStream this static_cast IPersistStream this..
Why exactly do I need an explicit upcast when implementing QueryInterface() in an object with multiple interfaces() http://stackoverflow.com/questions/1742848/why-exactly-do-i-need-an-explicit-upcast-when-implementing-queryinterface-in-a pointer to one of the interfaces if iid __uuidof IUnknown ppv static_cast IInterface1 this call Addref return S_OK The question.. is why can't I just copy this if iid __uuidof IUnknown ppv this call Addref return S_OK The documents usually say that.. share improve this question The problem is that ppv is usually a void directly assigning this to it will simply..
Calling C++ function from JavaScript script running in a web browser control http://stackoverflow.com/questions/3747414/calling-c-function-from-javascript-script-running-in-a-web-browser-control HRESULT STDMETHODCALLTYPE QueryInterface REFIID riid void ppv virtual ULONG STDMETHODCALLTYPE AddRef virtual ULONG STDMETHODCALLTYPE.. STDMETHODCALLTYPE JSObject QueryInterface REFIID riid void ppv ppv NULL if riid IID_IUnknown riid IID_IDispatch ppv static_cast.. JSObject QueryInterface REFIID riid void ppv ppv NULL if riid IID_IUnknown riid IID_IDispatch ppv static_cast..
Will a “variableName;” C++ statement be a no-op at all times? http://stackoverflow.com/questions/4030959/will-a-variablename-c-statement-be-a-no-op-at-all-times WINAPI blindQuery void currentObject REFIID iid void ppv DWORD_PTR param DEBUG_LOG __FUNCTION__ DEBUG_LOG macro expands.. in non debug DEBUG_LOG iid iid silence compiler warning if ppv 0 return E_POINTER ppv 0 return E_NOINTERFACE In the above example.. iid iid silence compiler warning if ppv 0 return E_POINTER ppv 0 return E_NOINTERFACE In the above example iid parameter is..
Using SqlServer CE without installation http://stackoverflow.com/questions/9102471/using-sqlserver-ce-without-installation REFCLSID rclsid LPUNKNOWN pUnkOuter REFIID riid LPVOID FAR ppv HRESULT hr S_OK if hModule NULL return E_INVALIDARG BOOL WINAPI.. hr return spIClassFactory CreateInstance pUnkOuter riid ppv Open a close a SDF file int _tmain int argc _TCHAR..
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