$UNSTABLE: Difference between revisions
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* Language features that become a permanent part of the language will no longer require [[$UNSTABLE]] to be used. | * 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. | * More than one [[$UNSTABLE]] can be used in a program. | ||
* MIDI keyword was deprecated in '''QB64-PE v3.14.0'''. Use [[_MIDISOUNDBANK]] instead. | * '''MIDI''' keyword was deprecated in '''QB64-PE v3.14.0'''. Use [[_MIDISOUNDBANK]] instead. | ||
Revision as of 18:02, 21 July 2024
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
- 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.
- MIDI keyword was deprecated in QB64-PE v3.14.0. Use _MIDISOUNDBANK instead.
Availability
- MIDI keyword added in QB64-PE v3.2.0
- HTTP keyword added in QB64-PE v3.5.0
Examples
$UNSTABLE:MIDI ' This line is only allowed when $UNSTABLE:MIDI is used $MIDISOUNDFONT: Default _SNDPLAYFILE "example.mid" |
See also