This function returns the current selected state of the radio button.
Input:
radio_button : SYSHANDLE
A handle to the radio button to get the state of.
Returns: INT
1
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- Radio button is selected.
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0
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- Radio button is not selected.
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-1
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- Interface is not open (see guiOpen).
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-3
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- Invalid handle.
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-11
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- The GUI API is not supported.
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Declaration:
FUNCTION guiRadioButtonIsSelected : INT;
VAR_INPUT
radio_button : SYSHANDLE;
END_VAR;
Example:
INCLUDE rtcu.inc
PROGRAM test;
VAR
radio1 : SYSHANDLE;
radio2 : SYSHANDLE;
END_VAR;
BEGIN
...
IF guiRadioButtonIsSelected(radio_button := radio1) = 1 THEN
DebugMsg(message := "Radio 1 selected");
END_IF;
IF guiRadioButtonIsSelected(radio_button := radio2) = 1 THEN
DebugMsg(message := "Radio 2 selected");
END_IF;
...
END;
END_PROGRAM;
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