Tektronix TDS7000 Series Programmer's Manual page 461

SELect?
Description
This query-only command returns the selected waveform that is affected by the front-panel controls and
the display status (on or off) of all waveforms. This query command is equivalent to selecting
Measurement Setup from the Measure menu and viewing the Source waveform setting.
Group
Vertical
Syntax
SELect?
Example
SELect?
This query might return
:SELECT:CH1 1;CH2 0;CH3 0;CH4 0;MATH1 0;MATH2 0;MATH3 0;MATH4
0;REF1 0;REF2 0;REF3 0;REF4 0;CONTROL CH1
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