diff options
Diffstat (limited to 'vendor/github.com/go-ole/go-ole/oleutil/connection_windows.go')
-rw-r--r-- | vendor/github.com/go-ole/go-ole/oleutil/connection_windows.go | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/vendor/github.com/go-ole/go-ole/oleutil/connection_windows.go b/vendor/github.com/go-ole/go-ole/oleutil/connection_windows.go new file mode 100644 index 000000000..ab9c0d8dc --- /dev/null +++ b/vendor/github.com/go-ole/go-ole/oleutil/connection_windows.go @@ -0,0 +1,58 @@ +// +build windows + +package oleutil + +import ( + "reflect" + "syscall" + "unsafe" + + ole "github.com/go-ole/go-ole" +) + +// ConnectObject creates a connection point between two services for communication. +func ConnectObject(disp *ole.IDispatch, iid *ole.GUID, idisp interface{}) (cookie uint32, err error) { + unknown, err := disp.QueryInterface(ole.IID_IConnectionPointContainer) + if err != nil { + return + } + + container := (*ole.IConnectionPointContainer)(unsafe.Pointer(unknown)) + var point *ole.IConnectionPoint + err = container.FindConnectionPoint(iid, &point) + if err != nil { + return + } + if edisp, ok := idisp.(*ole.IUnknown); ok { + cookie, err = point.Advise(edisp) + container.Release() + if err != nil { + return + } + } + rv := reflect.ValueOf(disp).Elem() + if rv.Type().Kind() == reflect.Struct { + dest := &stdDispatch{} + dest.lpVtbl = &stdDispatchVtbl{} + dest.lpVtbl.pQueryInterface = syscall.NewCallback(dispQueryInterface) + dest.lpVtbl.pAddRef = syscall.NewCallback(dispAddRef) + dest.lpVtbl.pRelease = syscall.NewCallback(dispRelease) + dest.lpVtbl.pGetTypeInfoCount = syscall.NewCallback(dispGetTypeInfoCount) + dest.lpVtbl.pGetTypeInfo = syscall.NewCallback(dispGetTypeInfo) + dest.lpVtbl.pGetIDsOfNames = syscall.NewCallback(dispGetIDsOfNames) + dest.lpVtbl.pInvoke = syscall.NewCallback(dispInvoke) + dest.iface = disp + dest.iid = iid + cookie, err = point.Advise((*ole.IUnknown)(unsafe.Pointer(dest))) + container.Release() + if err != nil { + point.Release() + return + } + return + } + + container.Release() + + return 0, ole.NewError(ole.E_INVALIDARG) +} |