CComControl::FireOnChanged
Notifies the container's sink that a control property has changed.
HRESULT FireOnChanged(
DISPID dispID
);
Parameters
- dispID
[in] Identifier of the property that has changed.
Return Value
One of the standard HRESULT values.
Remarks
If your control class derives from IPropertyNotifySink, this method calls CFirePropNotifyEvent::FireOnChanged to notify all connected IPropertyNotifySink interfaces that the specified control property has changed. If your control class does not derive from IPropertyNotifySink, this method returns S_OK.
This method is safe to call even if your control doesn't support connection points.
Example
STDMETHODIMP CMyControl::put_MyText(BSTR newVal)
{
// store newVal in CComBstr member
m_bstrMyText = newVal;
// note the DISPID for the MyText property is 3 in this example
FireOnChanged(3);
return S_OK;
}
Requirements
Header: atlctl.h