Initial community commit

Src/Plugins/Library/ml_nowplaying/external.cpp

@@ -0,0 +1,110 @@
+#include "main.h"
+#include "./resource.h"
+#include "./external.h"
+
+ExternalDispatch::ExternalDispatch() 
+	: ref(1)
+{
+}
+
+ExternalDispatch::~ExternalDispatch()
+{
+}
+
+HRESULT ExternalDispatch::CreateInstance(ExternalDispatch **instance)
+{
+	if (NULL == instance) return E_POINTER;
+	
+	*instance = new ExternalDispatch();
+	if (NULL == *instance) return E_OUTOFMEMORY;
+	
+	return S_OK;
+}
+
+LPCWSTR ExternalDispatch::GetName()
+{
+	return L"NowPlaying";
+}
+
+
+ULONG ExternalDispatch::AddRef(void)
+{
+	return InterlockedIncrement((LONG*)&ref);
+}
+
+
+ULONG ExternalDispatch::Release(void)
+{ 
+	if (0 == ref)
+		return ref;
+	
+	LONG r = InterlockedDecrement((LONG*)&ref);
+	if (0 == r)
+		delete(this);
+	
+	return r;
+}
+
+STDMETHODIMP ExternalDispatch::QueryInterface(REFIID riid, void **ppvObject)
+{
+	if (NULL == ppvObject) return E_POINTER;
+
+	if (IsEqualIID(riid, IID_IDispatch))
+		*ppvObject = static_cast<IDispatch*>(this);
+	else if (IsEqualIID(riid, IID_IUnknown))
+		*ppvObject = static_cast<IUnknown*>(this);
+	else
+	{
+		*ppvObject = NULL;
+		return E_NOINTERFACE;
+	}
+
+	AddRef();
+	return S_OK;
+}
+
+HRESULT ExternalDispatch::GetIDsOfNames(REFIID riid, OLECHAR FAR* FAR* rgszNames, unsigned int cNames, LCID lcid, DISPID FAR* rgdispid)
+{
+	bool unknowns = false;
+	for (unsigned int i = 0;i != cNames;i++)
+	{
+		if (_wcsicmp(rgszNames[i], L"hidden") == 0)
+			rgdispid[i] = DISPATCH_HIDDEN;
+		else
+		{
+			rgdispid[i] = DISPID_UNKNOWN;
+			unknowns = true;
+		}
+	}
+	if (unknowns)
+		return DISP_E_UNKNOWNNAME;
+	else
+		return S_OK;
+}
+
+HRESULT ExternalDispatch::GetTypeInfo(unsigned int itinfo, LCID lcid, ITypeInfo FAR* FAR* pptinfo)
+{
+	return E_NOTIMPL;
+}
+
+HRESULT ExternalDispatch::GetTypeInfoCount(unsigned int FAR * pctinfo)
+{
+	return E_NOTIMPL;
+}
+
+HRESULT ExternalDispatch::Invoke(DISPID dispId, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS FAR *pdispparams, VARIANT FAR *pvarResult, EXCEPINFO FAR * pexecinfo, unsigned int FAR *puArgErr)
+{
+	switch(dispId)
+	{
+	case DISPATCH_HIDDEN:
+			if (NULL != pvarResult)
+			{
+				HWND hLibrary = Plugin_GetLibrary();
+				VariantInit(pvarResult);
+				V_VT(pvarResult) = VT_BOOL;
+				V_BOOL(pvarResult) = (NULL == hLibrary || FALSE == SENDMLIPC(hLibrary, ML_IPC_IS_VISIBLE, 0));
+			}
+			return S_OK;
+	}
+	return DISP_E_MEMBERNOTFOUND;
+}