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72 lines
2.4 KiB
Markdown
72 lines
2.4 KiB
Markdown
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The keywords listed here are not supported in QB64. QB64 is meant to be compatible with **QB 4.5 or lower** versions. **PDS (7.1) is not supported**. Older code that uses these keywords won't generate errors, as these are ignored by the compiler.
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* [ALIAS](ALIAS) (supported in [DECLARE LIBRARY](DECLARE-LIBRARY) only)
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* [ANY](ANY)
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* [BYVAL](BYVAL) (supported in [DECLARE LIBRARY](DECLARE-LIBRARY) only)
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* CALLS
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* CDECL
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* DATE$ (statement) (reading the current [DATE$](DATE$) is supported)
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* DECLARE (non-BASIC statement)
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* DEF FN, EXIT DEF, END DEF
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* ERDEV, ERDEV$
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* FILEATTR
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* FRE
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* IOCTL, IOCTL$
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* [OPEN](OPEN) with devices like **LPT, CON, KBRD**, and other devices is not supported. [LPRINT](LPRINT) and [OPEN COM](OPEN-COM) are supported.
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* ON PEN, PEN (statement), PEN (function)
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* ON PLAY(n), PLAY(n) ON/OFF/STOP. ([PLAY](PLAY) music is supported.)
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* ON UEVENT
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* SETMEM
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* SIGNAL
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* TIME$ (statement) (reading the current [TIME$](TIME$) is supported)
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* TRON, TROFF
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* **[WIDTH](WIDTH) [LPRINT](LPRINT)** combined statement is not supported.
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## Keywords Not Supported in Linux or MAC OSX versions
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The commands listed here contain platform-specific calls and may be implemented in the future in Linux and macOS. These commands currently result in stub calls which do nothing.
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NOTE: The IDE does not support the opening or retrieval of more than one program at a time, but multiple instances of the IDE can be used simultaneously.
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Some OS Specific window/desktop calls:
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* [_ACCEPTFILEDROP](_ACCEPTFILEDROP), [_TOTALDROPPEDFILES](_TOTALDROPPEDFILES), [_DROPPEDFILE](_DROPPEDFILE), [_FINISHDROP](_FINISHDROP)
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* [_SCREENPRINT](_SCREENPRINT)
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* [_SCREENCLICK](_SCREENCLICK)
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* [_SCREENMOVE](_SCREENMOVE) (available in macOS, not available in Linux)
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* [_CLIPBOARDIMAGE](_CLIPBOARDIMAGE), [_CLIPBOARDIMAGE (function)](_CLIPBOARDIMAGE-(function))
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* [_WINDOWHASFOCUS](_WINDOWHASFOCUS) (available in Linux, not available in macOS)
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* [_WINDOWHANDLE](_WINDOWHANDLE)
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* [_CAPSLOCK](_CAPSLOCK), [_NUMLOCK](_NUMLOCK), [_SCROLLLOCK](_SCROLLLOCK) (statements and functions)
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Modular: QB64 has no limit on file size so BAS file modules can be combined.
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* [CHAIN](CHAIN)
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* [RUN](RUN)
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Mouse related:
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* [_MOUSEWHEEL](_MOUSEWHEEL) (available in Linux, not available in macOS)
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Printing:
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* [LPRINT](LPRINT)
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* [_PRINTIMAGE](_PRINTIMAGE)
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Port access:
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* [OPEN COM](OPEN-COM)
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File locking:
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* [LOCK](LOCK)
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* [UNLOCK](UNLOCK)
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## Reference
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* [QB64 FAQ](QB64-FAQ)
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