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.TH xzoom 1 "22 Jun 2020" "xzoom-0.3-26" "magnify part of X display"
.SH NAME
\fBxzoom \fP- magnify part of X display, with real-time updates
\fB
.SH SYNOPSIS
.nf
.fam C
\fBxzoom\fP

\fBxzoom\fP [\fIargs\fP]

\fBxzoom\fP [\fB-x\fP ] [\fB-y\fP ] [\fB-mag\fP \fImagnification\fP]
      [\fB-geometry\fP 'width size' \fIx\fP 'height size']

.fam T
.fi
.fam T
.fi
.SH DESCRIPTION
Xzoom displays in its window a magnified area of the X11 display. The user
can interactively change the zoomed area, the window size, \fImagnification\fP
(optionally different \fImagnification\fP for X and Y axes) or rotate or mirror
the image.
.PP
Use commands to change rotation, zoom or mirror the image.
.SH OPTIONS
.TP
.B
\fB-d\fP <displayname>, \fB-display\fP <displayname>
The name of the display to use.
.TP
.B
\fB-mag\fP <\fImagnification\fP [ \fImagnification\fP ]>
What \fImagnification\fP to use. If two
number arguments are supplied the first is used for X magnications and the
second is used for Y \fImagnification\fP. Magnification should be greater than 0.
.TP
.B
\fB-geometry\fP <geometry>
Size and position \fBxzoom\fP's window.
.TP
.B
\fB-source\fP <geometry>
Size and position the initial source area which is
magnified. The dimensions of this area are multiplied by the \fImagnification\fP
to get the size of \fBxzoom\fP's window. If these dimensions are given separately
(by use of \fB-geometry\fP) then an error is reported.
.TP
.B
-\fIx\fP
Mirror horizontally.
.TP
.B
\fB-y\fP
Mirror vertically.
.TP
.B
\fB-xy\fP
Exchange X and Y axes before any \fImagnification\fP is performed.
.SH COMMANDS
.TP
.B
+
Increase \fImagnification\fP value by 1.
.TP
.B
-
Decrease \fImagnification\fP value by 1.
.TP
.B
\fIx\fP
Mirror the display image horizontally.
.TP
.B
y
Mirror the display image vertically.
.TP
.B
z
Rotate 90 degrees counter-clockwise.
.TP
.B
w
Next '+' or '-' only change width scaling.
.TP
.B
h
Next '+' or '-' only change height scaling.
.TP
.B
d
Sets the delay between frame updates. Built-in delays are 200, 100, 50,
10 and 0 ms.
.TP
.B
q
Quit.
.TP
.B
Arrow keys
Scroll the zoomed area 1 pixel in the direction of the arrow.
if the control key is pressed the zoomed area will scroll 10
pixels.
.TP
.B
Mouse buttons
To set the location of the magnified area, click the left mouse
button inside \fBxzoom\fP's window and then move it (keep the button
pressed) to the place which you want to see magnified.
.PP
Xzoom allow you to resize it's window at any time.
.PP
When \fBxzoom\fP is iconified it simply waits to get deiconified.
.SH EXAMPLES
.TP
.B
\fBxzoom\fP \fB-mag\fP 5
# Open \fBxzoom\fP with \fImagnification\fP 5.
.TP
.B
\fBxzoom\fP \fB-mag\fP 2 \fB-geometry\fP 800x400
# Open \fBxzoom\fP with \fImagnification\fP 2 and windows size 800x400.
.TP
.B
\fBxzoom\fP -\fIx\fP
# Open display flipping right and left.
.SH SEE ALSO
\fBxmag\fP(1), \fBxzoom\fP help page.
.SH AUTHORS
\fBxzoom\fP was written by Itai Nahshon.
.PP
This manual page was written by Daniel Lenharo de Souza <lenharo@debian.org> for the Debian project (but may be used by others).