$INCLUDE

$INCLUDE is a metacommand that is used to insert a source code file into your program which is then executed at the point of the insertion.

Syntax

{REM | ' } $INCLUDE: _'sourceFile_'

Description

• QBasic metacommands must be commented with REM or an apostrophe.
• The sourceFile name must be enclosed in apostrophes and can include a path.
• $INCLUDE is often used to add functions and subs from an external text QBasic code library.
• The $INCLUDE metacommand should be the only statement on a line.

How to $INCLUDE a BAS or Text file with a QB64 Program

• Assemble the code to be reused into a file.
• Common extensions are .BI (for declarations, usually included in the beginning of a program) or .BM (with SUBs and FUNCTIONs, usually included at the end of a program).
  • Any extension can be used, as long as the file contains code in plain text (binary files are not accepted).
• $INCLUDE any DIM, CONST, SHARED arrays or DATA at the beginning of the main program code.
• $INCLUDE SUBs or FUNCTIONs at the bottom of the main program code after any SUB procedures.
  • Note: TYPE definitions, DATA and DECLARE LIBRARY can be placed inside of sub-procedures.
• Compile the program.
• Note: Once the program is compiled, the included text files are no longer needed with the program EXE.

Examples

'$INCLUDE: 'QB.BI'

More examples

• SelectScreen (member-contributed $INCLUDE demo)
• FILELIST$ (member-contributed file search function)
• SAVEIMAGE (SUB program that creates bitmaps)

See also

• INTERRUPT, INTERRUPTX
• TYPE, DIM
• Metacommand

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