Agilent Technologies EPM-P Series Programming Manual page 269

DISPlay Subsystem
DISPlay:CONTrast <numeric_value>
Reset Condition
On reset, the contrast is not affected.
Query
DISPlay:CONTrast? [MIN|MAX]
The query returns the current setting of the contrast or the values
associated with MIN and MAX. The response format is <NR3>.
Query Example
DISP:CONT?
5-4
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This command queries the current
contrast setting.
EPM-P Series Power Meters Programming Guide