Reading a control in Igor Pro

ControlInfo asks a control what it holds, without keeping a copy yourself.

Function ReadPanel()
    ControlInfo/W=AnalysisPanel thrSet
    Variable threshold = V_value

    ControlInfo/W=AnalysisPanel waveSel
    String chosen = S_value

    ControlInfo/W=AnalysisPanel smoothChk
    if (V_flag == 0)
        Print "no such control"
        return -1
    endif

    Printf "%s at %g, smoothing %d\r", chosen, threshold, V_value
    return 0
End

How it works

1. It fills V_value, S_value and S_dataFolder in the local scope.
2. V_flag says what kind of control it found, or zero for none.
3. It is the way to read one control from another control's action.

Keywords and builtins used here

• ControlInfo
• End
• Function
• Print
• Printf
• String
• Variable
• endif
• if
• return

The run, in numbers

Lines

16

Characters to type

317

Tokens

50

Three-star pace

90 tpm

At the three-star pace of 90 tokens a minute, this run takes about 33 seconds.

Type this snippet

Step 1 of 5 in Wiring it up, step 13 of 18 in Panels & GUI.

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