guiClose (Function)

This function closes the GUI API.

Input:

keep : BOOL Default FALSE

Set to TRUE to keep the handles valid after the API is closed. Leave at FALSE to free all the used handles.

Returns: INT

Declaration:

FUNCTION guiClose : INT;
VAR_INPUT
  keep : BOOL := FALSE;
END_VAR;

Example:

INCLUDE rtcu.inc
 
PROGRAM test;
VAR
  rc : INT;
END_VAR;
 
BEGIN
  ...
  // Closes the GUI API
  rc := guiClose();
  ...
END;
END_PROGRAM;