Difference between revisions of "OPEN"

From QB64 Wiki
Jump to navigation Jump to search
Line 4: Line 4:
  
  
''FileName$:'' as a string file name using the DOS 8.3 convention naming limits.
+
''FileName$:'' as a string file name using the DOS 8.3 naming convention limits.
  
  
Line 15: Line 15:
 
   [[INPUT]] : Only reads input from an existing file
 
   [[INPUT]] : Only reads input from an existing file
  
''FileNumber:'' as an Integer number or value from [[FREEFILE]]
+
''FileNumber:'' as a low Integer number or a value from the [[FREEFILE]] function.

Revision as of 07:49, 28 August 2009

OPEN is used to open a file, COM(serial) or LPT(parallel) port.

Syntax 1: OPEN FileName$ FOR Mode AS #FileNumber


FileName$: as a string file name using the DOS 8.3 naming convention limits.


Modes: Open can use 5 different modes:

 OUTPUT: Creates a new file or erases an existing file for program output
 APPEND: Creates a new file or appends data output to an existing file
 BINARY: Creates a new file or uses input and/or output from an existing file
 RANDOM: Creates a new file or uses input and/or output from an existing file
 INPUT : Only reads input from an existing file

FileNumber: as a low Integer number or a value from the FREEFILE function.