Invokes the Microsoft Multimedia application.
WndViewer(sViewerFile, Command, Data)
The Multimedia Viewer file to display.
The type of help:
1 - Displays a Viewer topic (specified in the Data field) in the main Viewer window.
2 - Displays a Viewer topic (specified in the Data field) in a pop-up window.
The context string of the Multimedia Viewer topic.
0 (zero) if successful, otherwise an error is returned.
Note: CitectSCADA cannot test if the topic has been found or displayed correctly. For example, if you pass an invalid topic, the viewer will open with "Viewer topic does not exist" - but this function will return 0.
! Displays the contents topic in the Multimedia file "MyFile.MVB".
! Displays the HelpTip topic in the Multimedia file "HelpFile.MVB" in a popup.