$UNSTABLE: Difference between revisions
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The [[$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. | The [[$UNSTABLE]] metacommand is used to enable the use of features that have not yet been made a permanent part of the language. Features hidden behind this metacommand may have breaking changes or be removed between releases. | ||
{{PageSyntax}} | {{PageSyntax}} | ||
:[[$UNSTABLE]]: {MIDI} | :[[$UNSTABLE]]: {MIDI, HTTP} | ||
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* The current unstable features are as follows: | * The current unstable features are as follows: | ||
** '''MIDI''' allows usage of the [[$MIDISOUNDFONT]] metacommand | ** '''MIDI''' allows usage of the [[$MIDISOUNDFONT]] metacommand | ||
** '''HTTP''' allows opening HTTP connections using [[_OPENCLIENT]] | |||
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{{PageSeeAlso}} | {{PageSeeAlso}} | ||
* [[$MIDISOUNDFONT]] | * [[$MIDISOUNDFONT]] | ||
* [[_OPENCLIENT]] | |||
{{PageNavigation}} | {{PageNavigation}} | ||
Revision as of 07:49, 6 January 2023
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}
- 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.
Availability
- QB64-PE v3.2 and up (QB64 Phoenix Edition)
Examples
$UNSTABLE:MIDI ' This line is only allowed when $UNSTABLE:MIDI is used $MIDISOUNDFONT: Default _SNDPLAYFILE "example.mid" |
See also