1 files changed, 75 insertions, 0 deletions
diff --git a/wintable/new/accessibility.h b/wintable/new/accessibility.h
new file mode 100644
index 0000000..bb50dd3
--- /dev/null
+++ b/wintable/new/accessibility.h
@@ -0,0 +1,75 @@
+// 24 december 2014
+
+struct tableAcc {
+	IAccessibleVtbl *vtbl;
+	ULONG refcount;
+	struct table *t;
+};
+
+static HRESULT STDMETHODCALLTYPE tableAccQueryInterface(IUnknown *this, REFIID riid, void **ppvObject)
+{
+	if (ppvObject == NULL)
+		return E_POINTER;
+	if (IsEqualIID(riid, IID_IUnknown) ||
+0)//		IsEqualIID(riid, IID_IDispatch)
+{//		IsEqualIID(riid, IID_IAccessible) {
+		*ppvObject = (void *) this;
+		return S_OK;
+	}
+	*ppvObject = NULL;
+	return E_NOINTERFACE;
+}
+
+#define TA ((struct tableAcc *) this)
+
+// TODO use InterlockedIncrement()/InterlockedDecrement() for these?
+
+static ULONG STDMETHODCALLTYPE tableAccAddRef(IUnknown *this)
+{
+	TA->refcount++;
+	return TA->refcount;
+}
+
+static ULONG STDMETHODCALLTYPE tableAccRelease(IUnknown *this)
+{
+	TA->refcount--;
+	if (TA->refcount == 0) {
+		tableFree(TA, "error freeing Table accessibility object");
+		return 0;
+	}
+	return TA->refcount;
+}
+
+static const IAccessibleVtbl tableAccVtbl = {
+	.QueryInterface = tableAccQueryInterface,
+	.AddRef = tableAccAddRef,
+	.Release = tableAccRelease,
+};
+
+static struct tableAcc *newTableAcc(struct table *t)
+{
+	struct tableAcc *ta;
+
+	ta = (struct tableAcc *) tableAlloc(sizeof (struct tableAcc), "error creating Table accessibility object");
+	ta->vtbl = &tableAccVtbl;
+	ta->vtbl->AddRef(vtbl);
+	ta->t = t;
+	return ta;
+}
+
+static void freeTableAcc(struct tableAcc *ta)
+{
+	ta->t = NULL;
+	ta->vtbl->Release(ta);
+}
+
+HANDLER(accessibilityHandler)
+{
+	if (uMsg != WM_GETOBJECT)
+		return FALSE;
+	if (wParam != OBJID_CLIENT)
+		return FALSE;
+	*lResult = LresultFromObject(IID_IUnknown, wParam, t->ta);
+	// TODO check *lResult
+	return TRUE;
+}