Graphics

Using Xpression version 9.5

I like to make utility functions when some task needs to be done again and again. In this case I am enabling/disabling tracks in scene directors.

However, when I try to access a track that doesn't exist, xpDbgMon.exe throws an alert box/notification. 

This is the function:

Sub SetTrack(SDir as xpSceneDirector, Name as String, OnOff as Boolean)  Dim Track as xpSceneDirectorTrack  Try    SDir.GetTrackByName(Name,Track)    Track.Enabled=OnOff  Catch    'Do Nothing  End TryEnd Sub

I thought the Try/Catch would suppress the message. I would also hope an error like this would show in the log. It doesn't.

I initially used the following but I got the alerts.

Sub SetTrack(SDir as xpSceneDirector, Name as String, OnOff as Boolean)  Dim Track as xpSceneDirectorTrack  If SDir.GetTrackByName(Name,Track) Then    Track.Enabled=OnOff  End IfEnd Sub

I solved the problem by adding an empty track with the missing name in the offending scene director. But I thought the way I was writing the code would suppress the alerts.

Any thoughts?

Hi,

First check SDir.TrackExistsByName(Name). If this results in False, skip the rest because the track is not there. If it results in true do the SDir.GetTrackByName(Name,Track).

Using Xpression version 9.5

I like to make utility functions when some task needs to be done again and again. In this case I am enabling/disabling tracks in scene directors.

However, when I try to access a track that doesn't exist, xpDbgMon.exe throws an alert box/notification. 

This is the function:

Sub SetTrack(SDir as xpSceneDirector, Name as String, OnOff as Boolean)  Dim Track as xpSceneDirectorTrack  Try    SDir.GetTrackByName(Name,Track)    Track.Enabled=OnOff  Catch    'Do Nothing  End TryEnd Sub

I thought the Try/Catch would suppress the message. I would also hope an error like this would show in the log. It doesn't.

I initially used the following but I got the alerts.

Sub SetTrack(SDir as xpSceneDirector, Name as String, OnOff as Boolean)  Dim Track as xpSceneDirectorTrack  If SDir.GetTrackByName(Name,Track) Then    Track.Enabled=OnOff  End IfEnd Sub

I solved the problem by adding an empty track with the missing name in the offending scene director. But I thought the way I was writing the code would suppress the alerts.

Any thoughts?