FOUNDATIONUnder review

Interface

Container → controls → callbacks → application rule

Organizes windows, controls, events and application state.

InterfaceAdvPL

01 · OVERVIEW

Overview

MSDialog is a container; TSay displays text, TGet edits a variable and TButton triggers an action. TDN’s Interface index supplied no detailed technical content; this subset uses those specific pages. Visual events should delegate validation and persistence to clearly scoped functions. (Sources: refs. 1–4.)

02 · SYNTAX

Syntax

Container → controls → callbacks → application rule

03 · PRACTICAL EXAMPLE

Commented example

#Include "Protheus.ch"

User Function Ed491()
    Local oDlg
    // Empty window to observe the modal lifecycle.
    DEFINE MSDIALOG oDlg TITLE "Test interface" FROM 0,0 TO 120,260 PIXEL
    ACTIVATE MSDIALOG oDlg CENTERED
Return Nil

Expected result

Opens a test window without fields or persistence. Under review: editorial example neither compiled nor run in Protheus. Check includes, release, RDD and context before testing.

BEST PRACTICES

Validate focus, keyboard, scaling and client; do not activate UI in a headless execution.
Under review: editorial example neither compiled nor run in Protheus. Check includes, release, RDD and context before testing.

Interface

Overview

Syntax

Commented example

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