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# LogiView

## Command 'field_set_acc'

| This command initializes (interactive) access of a mask field. The command works similar to the DataView programming interface function 'mas_fld_set.acc'.
| This command must not be called in a conditional instruction.
| ### Syntax:
| field_set_acc({WDG_ID},{FLD},{"m"|"w"|"r"})
| ### I/O parameters:
| {WDG_ID} | ID of mask widget
| {FLD} | Name of field
| {"m"|"w"|"r"} |
"m" | mandatory field
"w" | write access
"r" | read access
| - |
| ### Return value:
| - |
| ### Example:
| Declaration of Variables
    10 field_set_acc(widget_id(),"T_DOC_DAT.DOC_ID","r")
| Result: In the mask of the current widget, interactive access of field "T_DOC_DAT.DOC_ID" is set to read access.
| Functions and commands: Modification of Fields