Keithley 2651A Reference Manual page 189

Section 3: Functions and features
display.getlastkey()
The display.getlastkey() function is used to immediately return the key code for the last
pressed key. The following programming example illustrates how to display the last key pressed:
key = display.getlastkey()
print(key)
The above code will return the key code value (see the following table). Remember that a value of 0
(display.KEY_NONE) indicates that the key code history had been cleared.
Key codes
Value
0
65
68
69
70
71
72
73
75
77
78
79
80
81
The OUTPUT ON/OFF control (for a source-measure unit (SMU)) cannot be tracked by this function.
display.waitkey()
The display.waitkey() function captures the key code value for the next key press:
key = display.waitkey()
After sending the display.waitkey() function, the script will pause and wait for the operator to
press a front-panel key. For example, if the MEAS key is pressed, the function will return the value
86, which is the key code for that key. The key code values are the same as listed in
display.getlastkey()
3-82
Model 2651A High Power System SourceMeter® Instrument Reference Manual
Key list
display.KEY_NONE
display.KEY_RANGEUP
display.KEY_MENU
display.KEY_MODEA
display.KEY_RELA
display.KEY_RUN
display.KEY_DISPLAY
display.KEY_AUTO
display.KEY_EXIT
display.KEY_FILTERA
display.KEY_STORE
display.KEY_SRCA
display.KEY_CONFIG
display.KEY_RANGEDOWN
(on page 3-82).
Value Key list
82 display.KEY_ENTER
85 display.KEY_RECALL
86 display.KEY_MEASA
87 display.KEY_DIGITSA
92 display.KEY_TRIG
93 display.KEY_LIMITA
94 display.KEY_SPEEDA
95 display.KEY_LOAD
97 display.WHEEL_ENTER
103 display.KEY_RIGHT
104 display.KEY_LEFT
107 display.WHEEL_LEFT
114 display.WHEEL_RIGHT
NOTE
2651A-901-01 Rev. A / March 2011