xpsetimageresolution(3xp) [x11r4 man page]

XpSetImageResolution(3Xp)					 XPRINT FUNCTIONS					 XpSetImageResolution(3Xp)

NAME

       XpSetImageResolution - Sets the resolution for subsequent PutImage requests

SYNOPSIS

	     cc [ flag... ] file... -lXp [ library... ]
	     #include <X11/extensions/Print.h>

       Bool XpSetImageResolution ( display, print_context, image_res, prev_res_return )
	     Display * display ;
	     XPContext	print_context ;
	     int  image_res ;
	     int * prev_res_return ;

ARGUMENTS

       - display
	      Specifies a pointer to the Display structure.

       - print_context
	      Specifies the print context on which to set the resolution.

       - image_res
	      Specifies the image resolution in pixels per inch.

       - prev_res_return
	      Returns the previous image resolution in pixels per inch.

DESCRIPTION

       XpSetImageResolution returns True if the printer server allowed the resolution to be set, otherwise False is returned.

       XpSetImageResolution sets the resolution for subsequent PutImage requests to the screen of the specified print context. If the return value
       is False, then the print server does not support image scaling for the  particular  resolution  given  the  current  configuration  of  the
       printer,  and  the  application	is  responsible  for any desired scaling. If the return value is True, then the contents of any subsequent
       PutImage request to a Pixmap or to a Window on the screen of the specified print context will automatically be scaled as part of the PutIm-
       age request. The scale factor is:

	   default_printer_resolution / image_res

       Where  default_printer_resolution is the current value of that page attribute. Only the image itself is scaled (meaning the effective width
       and height of the image change), the dst-x and dst-y parameters to PutImage are not altered.

       As a special case, a value of zero for image_res resets the resolution to automatically track the printer resolution; in this  case  (which
       is also the default setting for a newly created print context), subsequent images will not be scaled.

       If  the	return value is True and prev_res_return is a non-NULL pointer, then the previous image resolution that was set for the print con-
       text is stored in prev_res_return.

       XpSetImageResolution returns False immediately if image_res is negative or greater than 65535.

DIAGNOSTICS

       XpBadContext   A valid print context-id has not been set prior to making this call.

X Version 11							    libXp 1.0.0 					 XpSetImageResolution(3Xp)

XpSetContext(3Xp)						 XPRINT FUNCTIONS						 XpSetContext(3Xp)

NAME

       XpSetContext -  Sets or unsets a print context with the specified display connection to the X Print Server.

SYNOPSIS

	     cc [ flag... ] file... -lXp [ library... ]
	     #include <X11/extensions/Print.h>

       void XpSetContext ( display, print_context )
	     Display *display;
	     XPContext print_context;

ARGUMENTS

       display
	      Specifies a pointer to the Display structure; returned from XOpenDisplay.

       print_context
	      A pre-existing print context on the same X Server.

DESCRIPTION

       XpSetContext  sets the print context for a display connection. All subsequent print operations that do not explicitly take a print context-
       id (for example, XpStartJob) on display will use and act upon the print context set by this call, until the print context is unset or XpDe-
       stroyContext is called. The print context can be set and used on multiple jobs, if not destroyed.

       If print_context is None, XpSetContext will unset (disassociate) the print context previously associated with display. If there was no pre-
       viously associated print context, no action is taken. The content of the formerly associated print context is not affected  by  this  call,
       and other display connections may continue to use the print context.

       Since  font capabilities can vary from printer to printer, XpSetContext may modify the list of available fonts (see XListFonts) on display,
       and the actual set of usable fonts (see XLoadFont). A unique combination of fonts may be available from within a  given	print  context;  a
       client should not assume that all the fonts available when no print context is set will be available when a print context is set.

       When  a	print  context is set on a display connection, the default behavior of ListFonts and ListFontsWithInfo is to list all of the fonts
       normally associated with the X print server (i.e. fonts containing glyphs) as well as any internal printer fonts defined for  the  printer.
       The  xp-listfonts-modes attribute is provided so that applications can control the behavior of ListFonts and ListFontsWithInfo and is typi-
       cally used to show just internal printer fonts.	Using only internal printer fonts is useful for performance reasons; the glyphs associated
       with the font are contained within the printer and do not have to be downloaded.

       If the value of xp-listfonts-modes includes xp-list-glyph-fonts, ListFonts and ListFontsWithInfo will include all of the fonts available to
       the server that have glyphs associated with them. If the value of xp-listfonts-modes includes  xp-list-internal-printer-fonts,  then  List-
       Fonts and ListFontsWithInfo will include all of the fonts defined as internal printer fonts.

       When the print context is unset or XpDestroyContext is called, the available fonts on display revert back to what they were previously.

DIAGNOSTICS

       XPBadContext   A valid print context-id has not been set prior to making this call.

SEE ALSO

       XpDestroyContext(3Xp), XpStartJob(3Xp)

X Version 11							    libXp 1.0.0 						 XpSetContext(3Xp)