diff options
Diffstat (limited to 'vendor/github.com/go-ole/go-ole/connect.go')
| -rw-r--r-- | vendor/github.com/go-ole/go-ole/connect.go | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/vendor/github.com/go-ole/go-ole/connect.go b/vendor/github.com/go-ole/go-ole/connect.go new file mode 100644 index 000000000..b2ac2ec67 --- /dev/null +++ b/vendor/github.com/go-ole/go-ole/connect.go @@ -0,0 +1,192 @@ +package ole + +// Connection contains IUnknown for fluent interface interaction. +// +// Deprecated. Use oleutil package instead. +type Connection struct { + Object *IUnknown // Access COM +} + +// Initialize COM. +func (*Connection) Initialize() (err error) { + return coInitialize() +} + +// Uninitialize COM. +func (*Connection) Uninitialize() { + CoUninitialize() +} + +// Create IUnknown object based first on ProgId and then from String. +func (c *Connection) Create(progId string) (err error) { + var clsid *GUID + clsid, err = CLSIDFromProgID(progId) + if err != nil { + clsid, err = CLSIDFromString(progId) + if err != nil { + return + } + } + + unknown, err := CreateInstance(clsid, IID_IUnknown) + if err != nil { + return + } + c.Object = unknown + + return +} + +// Release IUnknown object. +func (c *Connection) Release() { + c.Object.Release() +} + +// Load COM object from list of programIDs or strings. +func (c *Connection) Load(names ...string) (errors []error) { + var tempErrors []error = make([]error, len(names)) + var numErrors int = 0 + for _, name := range names { + err := c.Create(name) + if err != nil { + tempErrors = append(tempErrors, err) + numErrors += 1 + continue + } + break + } + + copy(errors, tempErrors[0:numErrors]) + return +} + +// Dispatch returns Dispatch object. +func (c *Connection) Dispatch() (object *Dispatch, err error) { + dispatch, err := c.Object.QueryInterface(IID_IDispatch) + if err != nil { + return + } + object = &Dispatch{dispatch} + return +} + +// Dispatch stores IDispatch object. +type Dispatch struct { + Object *IDispatch // Dispatch object. +} + +// Call method on IDispatch with parameters. +func (d *Dispatch) Call(method string, params ...interface{}) (result *VARIANT, err error) { + id, err := d.GetId(method) + if err != nil { + return + } + + result, err = d.Invoke(id, DISPATCH_METHOD, params) + return +} + +// MustCall method on IDispatch with parameters. +func (d *Dispatch) MustCall(method string, params ...interface{}) (result *VARIANT) { + id, err := d.GetId(method) + if err != nil { + panic(err) + } + + result, err = d.Invoke(id, DISPATCH_METHOD, params) + if err != nil { + panic(err) + } + + return +} + +// Get property on IDispatch with parameters. +func (d *Dispatch) Get(name string, params ...interface{}) (result *VARIANT, err error) { + id, err := d.GetId(name) + if err != nil { + return + } + result, err = d.Invoke(id, DISPATCH_PROPERTYGET, params) + return +} + +// MustGet property on IDispatch with parameters. +func (d *Dispatch) MustGet(name string, params ...interface{}) (result *VARIANT) { + id, err := d.GetId(name) + if err != nil { + panic(err) + } + + result, err = d.Invoke(id, DISPATCH_PROPERTYGET, params) + if err != nil { + panic(err) + } + return +} + +// Set property on IDispatch with parameters. +func (d *Dispatch) Set(name string, params ...interface{}) (result *VARIANT, err error) { + id, err := d.GetId(name) + if err != nil { + return + } + result, err = d.Invoke(id, DISPATCH_PROPERTYPUT, params) + return +} + +// MustSet property on IDispatch with parameters. +func (d *Dispatch) MustSet(name string, params ...interface{}) (result *VARIANT) { + id, err := d.GetId(name) + if err != nil { + panic(err) + } + + result, err = d.Invoke(id, DISPATCH_PROPERTYPUT, params) + if err != nil { + panic(err) + } + return +} + +// GetId retrieves ID of name on IDispatch. +func (d *Dispatch) GetId(name string) (id int32, err error) { + var dispid []int32 + dispid, err = d.Object.GetIDsOfName([]string{name}) + if err != nil { + return + } + id = dispid[0] + return +} + +// GetIds retrieves all IDs of names on IDispatch. +func (d *Dispatch) GetIds(names ...string) (dispid []int32, err error) { + dispid, err = d.Object.GetIDsOfName(names) + return +} + +// Invoke IDispatch on DisplayID of dispatch type with parameters. +// +// There have been problems where if send cascading params..., it would error +// out because the parameters would be empty. +func (d *Dispatch) Invoke(id int32, dispatch int16, params []interface{}) (result *VARIANT, err error) { + if len(params) < 1 { + result, err = d.Object.Invoke(id, dispatch) + } else { + result, err = d.Object.Invoke(id, dispatch, params...) + } + return +} + +// Release IDispatch object. +func (d *Dispatch) Release() { + d.Object.Release() +} + +// Connect initializes COM and attempts to load IUnknown based on given names. +func Connect(names ...string) (connection *Connection) { + connection.Initialize() + connection.Load(names...) + return +} |