ALIAS - QB64Official/qb64 GitHub Wiki

See DECLARE LIBRARY.

The ALIAS clause in a DECLARE LIBRARY statement block tells the program the name of the procedure used in the external library.

Syntax

SUB pseudoname ALIAS actualname [(parameters)]

Parameter(s)

  • The pseudo name is the name of the SUB or FUNCTION the QB64 program will use.
  • The actual name is the same procedure name as it is inside of the DLL library.
  • QB64 must use all parameters of imported procedures including optional ones.

Description

  • The ALIAS name clause is optional as the original library procedure name can be used.
  • The procedure name does not have to be inside of quotes when using DECLARE LIBRARY.
  • QB64 does not support optional parameters.

Example(s)

Instead of creating a SUB with the Library statement inside of it, just rename it:


DECLARE LIBRARY
    SUB MouseMove ALIAS glutWarpPointer (BYVAL xoffset&, BYVAL yoffset&)
END DECLARE

DO UNTIL _SCREENEXISTS: LOOP
PRINT "Hit a key..."
SLEEP

MouseMove 1, 1

Explanation: When a Library procedure is used to represent another procedure name use ALIAS instead. Saves creating a SUB! Just place your name for the procedure first with the actual Library name after ALIAS.

See Also