RESIZE Attribute in Dialog Box¶
This feature included as of FWD v4.0.0. See #4247.
The subject of this 4GL language extension is the
RESIZE attribute for
DIALOG-BOX widget. The semantics of the introduced attribute is the same as the attribute
WINDOW widget. When the attribute is set to
true the target
DIALOG-BOX window becomes user resizable, i.e. the window can be resized with a mouse. The default value of the attribute is
false, and so the behavior defaults to the legacy 4GL.
Similarly as with the
WINDOW widget, when the resizable
DIALOG-BOX is resized a
WINDOW-RESIZED event gets triggered for the target frame. See the example below how the feature is used.
The attribute is only assignable before the
DIALOG-BOX has been realized.
default-window:visible = true. define button b label "Close". define frame f "This frame will fill the window when the dialog is resized." b with view-as dialog-box size 60 by 15. frame f:resize = true. enable all with frame f. on window-resized of frame f do: message "Dialog resized". run layout. end. run layout. procedure layout: b:column = frame f:width / 2 - b:width in frame f / 2. b:row = frame f:height / 2 - b:height in frame f / 2. end. wait-for close of this-procedure or choose of b in frame f.
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