Tag Archives: SLS_PRN()

SP Printer Issues

Posted on by vivaclipper 
 This is how printing is handled by the library
 functions. You need not follow this method except where it is
 imbedded in SuperLib metafunctions.

 The function SLS_PRN() is a SET/RETRIEVE function
 which sets and retrieves the default printer port as a string
 with the default as "LPT1". This function may be called with any
 valid printer port name as a parameter to set a new printer port
 for SuperLib usage.

 Valid values are "LPT1", "LPT2", "LPT3", "COM1",
 "COM2" - anything you could issue a SET PRINTER TO
 <cPort> with.

 Another SET/RETRIEVE function - SLS_PRNC() - points
 to the setting which determines if the printer port will be
 checked for readiness before printing. Passing it a False causes
 it to not check the printer before printing - handy in some
 network situations.

 At print time, LPT* ports are checked for readiness
 via the P_READY() function. (COM ports are not checked for
 readiness.) However, if SLS_PRNC() has been passed a .f., no
 check for readiness is done.

 P_READY() uses the .ASM function ISPRN() to check for
 readiness.

 If the port is not ready, the user is given
 the option to:       Try Again
                      Ignore the Warning
                      Select a Different Printer Port
                      Abort the print request

 If Abort is selected, P_READY() returns false.

 

SP_SLS_PRN

Posted on by vivaclipper 
SLS_PRN()

  Short:
  ------
 SLS_PRN() A Superlib printer setting function

 Returns
 <cSetting> => Current value of the setting

 Syntax
 SLS_PRN([cNew])

 Function                   Setting                     Default
 --------------------------------------------------------------
 SLS_PRN([cNew])            Default printer             'LPT1'

 [cNew] sets the setting to a new setting
 If [cNew] is passed, the setting is changed and the
 new setting is returned.

 Examples

  SLS_PRN("LPT2")
  SET PRINTER TO (SLS_PRN())

 Notes:

 Source: S_GLOBAL.PRG