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Historical keyboard, calendar, symbol, bitmap and color constants

Checks include definitions without treating historical numbers as universal.

Historical keyboard, calendar, symbol, bitmap and color constantsAdvPL

01 · OVERVIEW

Overview

The eAdvpl guide annex groups keyboard, calendar, symbol, bitmap and color names such as KEYBOARD_ALPHA and SELECT_DAYBYDAY. They belong to that source environment; numeric values and resources must not be transferred to arbitrary Protheus includes. Prefer symbolic names available in the implementation and check definitions before use. The example conditionally inspects KEYBOARD_ALPHA only when defined by the include, without opening a keyboard, calendar or image. (Guia de referência eAdvpl, n.d., annex 14, ref. 1)

03 · PRACTICAL EXAMPLE

Commented example

#Include "Protheus.ch"
User Function Ed313()
    // Do not invent a number when the constant is absent.
    #IfDef KEYBOARD_ALPHA
        ConOut(cValToChar(KEYBOARD_ALPHA))
    #Else
        ConOut("Constant absent from this include")
    #EndIf
Return Nil

Expected result

Defined value or absence message; no particular number is assumed. Under review: editorial example neither compiled nor run in Protheus. Check includes, release, RDD and context before testing.

BEST PRACTICES

Record the include and version inspected. For graphics check resource availability and bitmap license; for colors check the component contract.
Under review: editorial example neither compiled nor run in Protheus. Check includes, release, RDD and context before testing.

Historical keyboard, calendar, symbol, bitmap and color constants

Overview

Commented example

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