Thread: IMAQdx -- how do I set the camera mode?
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Unread 12-03-2015, 00:29
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Post IMAQdx -- how do I set the camera mode?
In C++. I've dumped the modes and I want #95 (this is part of the list):

Video mode[94] is 320 x 240 JPEG 20.00 fps = 94
Video mode[95] is 320 x 240 JPEG 15.00 fps = 95
Video mode[96] is 320 x 240 JPEG 10.00 fps = 96

can one of the NI guys tell me how to form the proper IMAQdxSetAttribute call to get that mode? I'm thinking I pass in IMAQdxAttributeVideoMode (uisitionAttributes::VideoMode"), but what's the IMAQdxValueType? IMAQdxValueTypeU32? and I just pass a 95?

I'm still experimenting, but if one of you is online..

When I enumerate the attributes, I get:

attr[38] is AcquisitionAttributes::VideoMode, type 4, writeable 0, value=0

Should I be worried about the Writable being zero? Does that mean I can't change video modes by writing to this attribute (.h file says its "get/set").

But does type 4 mean I set it as a character string and not an integer?