This function returns the index of the selected item in the list. When the selection is changed, the list selection changed event is sent.
Input:
list : SYSHANDLE
The handle to the list to find the selection in.
Returns: INT
>0
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- The index of the selected item.
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0
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- No item 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 guiListGetSelected : INT;
VAR_INPUT
list : SYSHANDLE;
END_VAR;
Example:
INCLUDE rtcu.inc
PROGRAM test;
VAR
rc : INT;
list : SYSHANDLE;
form : SYSHANDLE;
END_VAR;
BEGIN
...
rc := guiListGetSelected(list := list);
IF rc > 0 THEN
DebugFmt(message:="Selected item: \1", v1:= rc);
END_IF;
...
END;
END_PROGRAM;
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