How can I get properties of global virtual channels using DAQmx?

[mfrazer_99]

I'm using DAQmx with VB6. In my app, I would like to be able to present the user with a list of available predefined channels to select from. I can use DAQmxGetSysGlobalChans to get a list of the channels, but I need a way to sort out which of these channels are defined as inputs, and which are outputs. It would also be nice to be able to query other properties of the virtual channel (for example, the device and physical channel being used). These all seem very simple things, but I haven't found anything like this in the documentation so far.

Thanks.

[lrallen]

Try using  DAQmxGetChanType(TaskHandle taskHandle, const char channel[ ], int32 *data)DAQmxGetChanType(TaskHandle taskHandle, const char channel[ ], int32 *data).  This will return one of the following types:

DAQmx_Val_AI	10100	Analog input channel.
DAQmx_Val_AO	10102	Analog output channel.
DAQmx_Val_DI	10151	Digital input channel.
DAQmx_Val_DO	10153	Digital output channel.
DAQmx_Val_CI	10131	Counter input channel.
DAQmx_Val_CO	10132	Counter output channel.

Let me know if this works. 

Regards,

L. Allen

[mfrazer_99]

Thanks L. Allen.

That was exactly what I was looking for. In my searches of the DAQmx help file I completely missed that one.

I appreciate your help.

MFrazer