$UNSTABLE

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The $UNSTABLE metacommand is used to enable the use of features that have not yet been made a permanent part of the language. Features hidden behind this metacommand may have breaking changes or be removed between releases.


Syntax

$UNSTABLE: {MIDI, HTTP}


Parameters

  • The current unstable features are as follows:
    • MIDI allows usage of the $MIDISOUNDFONT metacommand (no longer required, see Availability below)
    • HTTP allows opening HTTP connections using _OPENCLIENT


Description

  • $UNSTABLE exists as a way to allow usage of new language features before they are finalized as part of the language.
  • Any languages features hidden behind $UNSTABLE may be changed in breaking ways in the next version of QB64-PE.
  • Language features that become a permanent part of the language will no longer require $UNSTABLE to be used.
  • More than one $UNSTABLE can be used in a program.


Availability

  • MIDI keyword added in QB64-PE v3.2.0
  • HTTP keyword added in QB64-PE v3.5.0
  • MIDI keyword no longer required, MIDI support is stable since QB64-PE v3.14.0. See _MIDISOUNDBANK.


Examples

$UNSTABLE:MIDI

' This line is only allowed when $UNSTABLE:MIDI is used
$MIDISOUNDFONT: Default

_SNDPLAYFILE "example.mid"


See also



Navigation:
Main Page with Articles and Tutorials
Keyword Reference - Alphabetical
Keyword Reference - By usage
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