DtPrintResetConnection(library call) DtPrintResetConnection(library call)
NAME [Toc] [Back]
DtPrintResetConnection - resets the print display connection managed
by a DtPrintSetupBox
SYNOPSIS [Toc] [Back]
#include <Print.h>
XtEnum DtPrintResetConnection(
Widget wid,
DtPrintResetConnectionMode mode);
DESCRIPTION [Toc] [Back]
The DtPrintResetConnection function is a convenience function provided
by the DtPrintSetupBox widget that allows applications to direct the
widget to stop managing the X print server connection. A mode
parameter is included in order to direct the widget to close the print
connection by calling XpDestroyPrintContext and XCloseDisplay or to
simply relinquish control of the connection without closing it.
DtPrintResetConnection is intended to be used by applications that
fork a child process to perform the print rendering operation.
Immediately after the fork is performed, the parent process will close
its X print server connection, and retain its connection to the video
X server. The forked child on the other hand will close its video X
server connection and perform the rendering operation on the X print
server connection.
ARGUMENTS [Toc] [Back]
wid The DtPrintSetupBox widget ID.
mode Indicates whether DtPrintResetConnection should close the X
print server connection, or simply cause the DtPrintSetupBox
to cease managing the connection.
Valid values are:
DtPRINT_CLOSE_CONNECTION [Toc] [Back]
Set by the parent process when the application
forks a child to perform the print rendering. This
will cause the DtNclosePrintDisplayCallback list
set for the passed DtPrintSetupBox to be called.
DtPRINT_RELEASE_CONNECTION [Toc] [Back]
Set when the application wishes to destroy the
DtPrintSetupBox widget instance and still perform
print rendering using the X print server
connection initiated by the widget. For example,
the child process of an application that forks to
perform print rendering will close the video
display connection (thereby destroying the
DtPrintSetupBox widget) prior to print rendering.
No DtPrintSetupBox callbacks will be called as a
- 1 - Formatted: January 24, 2005
DtPrintResetConnection(library call) DtPrintResetConnection(library call)
result of this operation.
RETURN VALUE [Toc] [Back]
DtPRINT_SUCCESS
DtPrintResetConnection was successful.
DtPRINT_NO_CONNECTION [Toc] [Back]
An open X print server connection is not currently being
managed by the DtPrintSetupBox.
DtPRINT_BAD_PARM [Toc] [Back]
The value passed for wid is NULL, or an invalid mode was
passed.
ENVIRONMENT VARIABLES [Toc] [Back]
None.
RESOURCES [Toc] [Back]
None.
ACTIONS/MESSAGES
None.
ERRORS/WARNINGS
None.
EXAMPLES [Toc] [Back]
None.
FILES [Toc] [Back]
None.
SEE ALSO [Toc] [Back]
DtPrintSetupBox(3)
- 2 - Formatted: January 24, 2005 [ Back ] |