1 files changed, 38 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl/lib/auto/Tk/Scrollbar/ScrlByPages.al b/Master/tlpkg/tlperl/lib/auto/Tk/Scrollbar/ScrlByPages.al
new file mode 100644
index 00000000000..9d4018e9128
--- /dev/null
+++ b/Master/tlpkg/tlperl/lib/auto/Tk/Scrollbar/ScrlByPages.al
@@ -0,0 +1,38 @@
+# NOTE: Derived from ..\blib\lib\Tk\Scrollbar.pm.
+# Changes made here will be lost when autosplit is run again.
+# See AutoSplit.pm.
+package Tk::Scrollbar;
+
+#line 346 "..\blib\lib\Tk\Scrollbar.pm (autosplit into ..\blib\lib\auto\Tk\Scrollbar\ScrlByPages.al)"
+# tkScrlByPages --
+# This procedure tells the scrollbar's associated widget to scroll up
+# or down by a given number of screenfuls.  It notifies the associated
+# widget in different ways for old and new command syntaxes.
+#
+# Arguments:
+# w -		The scrollbar widget.
+# orient -	Which kinds of scrollbars this applies to:  "h" for
+#		horizontal, "v" for vertical, "hv" for both.
+# amount -	How many screens to scroll:  typically 1 or -1.
+
+sub ScrlByPages
+{
+ my $w = shift;
+ my $orient = shift;
+ my $amount = shift;
+ my $cmd    = $w->cget('-command');
+ return unless (defined $cmd);
+ return if (index($orient,substr($w->cget('-orient'),0,1)) < 0);
+ my @info = $w->get;
+ if (@info == 2)
+  {
+   $cmd->Call('scroll',$amount,'pages');
+  }
+ else
+  {
+   $cmd->Call($info[2]+$amount*($info[1]-1));
+  }
+}
+
+# end of Tk::Scrollbar::ScrlByPages
+1;