EW_Output

ew

1998 12-05

CLASS

EW_Output - general purpose output object

SYNOPSIS

Class EW_Output provides general purpose system non-specific output. It uses OS-abstracted routines from the Operating System Dependency (OSD) library. EW defines a global EW_Output named ewGlobalOutput which it previously used for the ewPrint() function. ewPrint() now uses the logging mechanism from the Well Behaved Application (WBA) library.

PUBLIC MEMBER FUNCTIONS

long Open(void)

long Close(void)
Open/Close the OS-dependent items used to express the output.

long SetFlags(unsigned long flags)

unsigned long GetFlags(void)
Set/Get the flags associated with the output. The current acceptable OR'ed options are:

OSD_OUT_FILE Send output to a log file.

OSD_OUT_STDOUT Send output to a standard out.

OSD_OUT_STDERR Send output to a standard error.

OSD_OUT_MESSAGEBOX Send output to a a message window.

long SetFilename(char *filename)
Set the filename used for the output log when such option is activated.

FILES

wds/error.h Error-handling header file

NOTES

This mechanism is present and partially active, but outdated by a WBA-based mechanism. You should still use the EW_PRINT() macro to the ewPrint() log handler.

Currently, message boxes only appear on applications running on Win32 environments.

OSD_OUT_FILE	Send output to a log file.
OSD_OUT_STDOUT	Send output to a standard out.
OSD_OUT_STDERR	Send output to a standard error.
OSD_OUT_MESSAGEBOX	Send output to a a message window.