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.TH XpStartPage 3Xp "libXp 1.0.4" "X Version 11" "XPRINT FUNCTIONS"
.SH NAME
XpStartPage \- Indicates the beginning of a print page.
.SH SYNOPSIS
.br
      cc [ flag... ] file... -lXp [ library... ]
.br
      #include <X11/extensions/Print.h>
.LP
.B void XpStartPage
(
.I display,
.I window
)
.br
      Display *\fIdisplay\fP\^;
.br
      Window \fIwindow\fP\^;
.if n .ti +5n
.if t .ti +.5i
.SH ARGUMENTS
.TP
.I display
Specifies a pointer to the Display structure; returned from XOpenDisplay.
.TP
.I window
Specifies the window ID.
.SH DESCRIPTION
.LP
XpStartPage signals the beginning of a new print page, with window serving as
the drawable representing the page.
.I window
is required to be a descendant of the root window of the current print context
window, else a BadWindow is generated. No generation of document data will occur
for rendering operations against window or its inferiors prior to XpStartPage.

XpStartPage causes window to be mapped. See XpGetPageDimensions and
XResizeWindow for details on resizing window to the size of the media selected
prior to calling XpStartPage. Within the XpStartPage and XpEndPage sequence,
attempts to resize, move or unmap window will yield undefined results. To resize
or move inferiors of window the standard semantics of ConfigureWindow apply,
except that the contents of any configured window may be discarded. An Expose
event will be generated if a window's contents are discarded.

All changes to the XPPageAttr attribute pool (see XpSetAttributes) must be made
prior to calling XpStartPage, after which an XPBadSequence error will be
generated if changes are attempted, until XpEndPage is called.

For clients selecting XPPrintMask (see XpSelectInput), the event XPPrintNotify
will be generated with its detail field set to XPStartPageNotify when the
.I X Print Server
has completed XpStartPage. If the event Expose is also selected for (see
XSelectInput), the exposure events will be generated prior to XPPrintNotify.

The client need not wait for XPStartPageNotify prior to calling any other X
rendering routines.

.SH DIAGNOSTICS
.TP 15
.SM BadWindow
The value specified for window is not valid.
.TP 15
.SM XPBadContext
A valid print context-id has not been set prior to making this call.
.TP 15
.SM XPBadSequence
The function was not called in the proper order with respect to the
other X Print Service Extension calls; for example, XpStartPage was
called before XpStartJob or was called for a type XPDocRaw document.
.SH "SEE ALSO"
.BR XpEndPage (3Xp),
.BR XpGetPageDimensions (3Xp),
.BR XpSelectInput (3Xp),
.BR XpSetAttributes (3Xp)