1
1
Fork 0
mirror of https://github.com/QB64Official/qb64.git synced 2024-07-20 22:05:15 +00:00
qb64/internal/help/DECLARE.txt
Luke Ceddia b586eafd3b Integrated _BLINEINPUT into regular LINE INPUT for BINARY files
LINE INPUT will now use the faster method if passed a file handle
that has been opened FOR BINARY. As such, the _BLINEINPUT command
has been removed.

qb64.bas now takes advantage of this for reading from '$include files,
at least in Include Manager 1. Some tweaking of internal/source/main.txt
was required to get things into a sane state, so I'm holing off changing
the compiler any further so the auto-builder can make sure everything's
smoothed over.

Note: Everything should still compile as normal; I'm just being overcautious.
2014-07-27 00:06:17 +10:00

25 lines
1 KiB
Plaintext

The '''DECLARE''' statement is used to tell Qbasic that a [[SUB]] or [[FUNCTION]] is to be used in the program with specific parameter types.
{{PageSyntax}}
:: DECLARE SUB ProcedureName ([parameters [[AS]] type])
* '''QB64 ignores DECLARE statements, so define the parameter [[TYPE]]s in the SUB procedure!'''
* Parameters MUST be placed in parenthesis separated by commas when necessary.
* Empty parenthesis are required when no parameters are used.
* Declarations should be placed at the top of the main program code after {{KW|Metacommand}} and {{KW|DEFINT|DEF}} statements if used.
* Parameters can be defined in a DECLARE statement [[AS]] [[INTEGER]], [[SINGLE]], [[DOUBLE]], [[LONG]], [[STRING]] or [[ANY]].
* The Qbasic IDE can automatically DECLARE a SUB or FUNCTION once the procedure is called and the module is Saved.
* If a procedure is never called, it will not be automatically be DECLAREd by the Qbasic IDE when the program is saved.
''See also:''
* [[SUB]], [[FUNCTION]], [[BYVAL]]
* [[DECLARE LIBRARY]] (QB64 ONLY)
{{PageNavigation}}