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'\" te .\" Copyright (c) 1989, AT&T. All rights reserved. .\" Portions Copyright (c) 1996, Oracle and/or its affiliates. All rights reserved. .TH curs_touch 3CURSES "31 Dec 1996" "Oracle Solaris 11.4" "Curses Library Functions" .SH NAME curs_touch, touchwin, touchline, untouchwin, wtouchln, is_linetouched, is_wintouched \- curses refresh control routines .SH SYNOPSIS .LP .nf \fBcc\fR [ \fIflag\fR ... ] \fIfile\fR ... \fB-lcurses\fR [ \fIlibrary\fR ... ] #include <curses.h> \fBint\fR \fBtouchwin\fR(\fBWINDOW *\fR\fIwin\fR); .fi .LP .nf \fBint\fR \fBtouchline\fR(\fBWINDOW *\fR\fIwin\fR, \fBint\fR \fIstart\fR, \fBint\fR \fIcount\fR); .fi .LP .nf \fBint\fR \fBuntouchwin\fR(\fBWINDOW *\fR\fIwin\fR); .fi .LP .nf \fBint\fR \fBwtouchln\fR(\fBWINDOW *\fR\fIwin\fR, \fBint\fR \fIy\fR, \fBint\fR \fIn\fR, \fBint\fR \fIchanged\fR); .fi .LP .nf \fBint\fR \fBis_linetouched\fR(\fBWINDOW *\fR\fIwin\fR, \fBint\fR \fIline\fR); .fi .LP .nf \fBint\fR \fBis_wintouched\fR(\fBWINDOW *\fR\fIwin\fR); .fi .SH DESCRIPTION .sp .LP The \fBtouchwin()\fR and \fBtouchline()\fR routines throw away all optimization information about which parts of the window have been touched, by pretending that the entire window has been drawn on. This is sometimes necessary when using overlapping windows, since a change to one window affects the other window, but the records of which lines have been changed in the other window do not reflect the change. The routine \fBtouchline()\fR only pretends that \fIcount\fR lines have been changed, beginning with line \fIstart\fR. .sp .LP The \fBuntouchwin()\fR routine marks all lines in the window as unchanged since the last call to \fBwrefresh()\fR. .sp .LP The \fBwtouchln()\fR routine makes \fIn\fR lines in the window, starting at line \fIy\fR, look as if they have (\fIchanged\fR\fB=1\fR) or have not (\fIchanged\fR\fB=0\fR) been changed since the last call to \fBwrefresh()\fR. .sp .LP The \fBis_linetouched()\fR and \fBis_wintouched()\fR routines return \fBTRUE\fR if the specified line/window was modified since the last call to \fBwrefresh()\fR; otherwise they return \fBFALSE\fR. In addition, \fBis_linetouched()\fR returns \fBERR\fR if \fBline\fR is not valid for the given window. .SH RETURN VALUES .sp .LP All routines return the integer \fBERR\fR upon failure and an integer value other than \fBERR\fR upon successful completion, unless otherwise noted in the preceding routine descriptions. .SH ATTRIBUTES .sp .LP See \fBattributes\fR(7) for descriptions of the following attributes: .sp .TS tab( ) box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) . ATTRIBUTE TYPE ATTRIBUTE VALUE _ MT-Level Unsafe .TE .sp .SH SEE ALSO .sp .LP \fBcurs_refresh\fR(3CURSES), \fBcurses\fR(3CURSES), \fBattributes\fR(7) .SH NOTES .sp .LP The header <\fBcurses.h\fR> automatically includes the headers <\fBstdio.h\fR> and <\fBunctrl.h\fR>. .sp .LP Note that all routines except \fBwtouchln()\fR may be macros.