| 1 | .TH XScreenSaver 1 "10-Oct-03" "X Version 11" |
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| 2 | .SH NAME |
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| 3 | xanalogtv - Simulate reception on an old analog TV set |
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| 4 | .SH SYNOPSIS |
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| 5 | .B xanalogtv |
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| 6 | [\-display \fIhost:display.screen\fP] [\-window] [\-root] [\-install] |
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| 7 | [\-visual \fIvisual\fP] |
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| 8 | [\-cycle] [\-no-cycle] |
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| 9 | .SH DESCRIPTION |
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| 10 | .I xanalogtv |
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| 11 | shows a simulation of an old TV set showing test patterns and any |
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| 12 | other images you have provided. It reproduces a wide range of TV |
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| 13 | reception bummage: snow, bloom, ghosting, and loss of vertical and |
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| 14 | horizontal sync. It also simulates the TV warming up. It will cycle |
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| 15 | through 12 channels, some with images you give it, and some with color |
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| 16 | bars or nothing but static. |
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| 17 | .PP |
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| 18 | The images that it uses will be grabbed from the portion of the screen |
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| 19 | underlying the window, or from the system's video input, or from a |
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| 20 | random file on disk, as indicated by the \fIgrabDesktopImages\fP, |
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| 21 | \fIgrabVideoFrames\fP, and \fIchooseRandomImages\fP options in the |
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| 22 | \fI~/.xscreensaver\fP file; see |
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| 23 | .BR xscreensaver-demo (1) |
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| 24 | for more details. It looks best with a video input or |
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| 25 | your digital photo collection. |
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| 26 | .PP |
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| 27 | .SH OPTIONS |
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| 28 | .I xanalogtv |
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| 29 | accepts the following options: |
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| 30 | .TP 8 |
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| 31 | .B \-window |
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| 32 | Draw on a newly-created window. This is the default. |
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| 33 | .TP 8 |
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| 34 | .B \-root |
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| 35 | Draw on the root window. |
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| 36 | .TP 8 |
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| 37 | .B \-install |
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| 38 | Install a private colormap for the window. |
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| 39 | .TP 8 |
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| 40 | .B \-visual \fIvisual\fP |
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| 41 | Specify which visual to use. Legal values are the name of a visual class, |
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| 42 | or the id number (decimal or hex) of a specific visual. |
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| 43 | .TP 8 |
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| 44 | .B \-cycle |
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| 45 | Cycle through all the available modes. This is the default. |
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| 46 | .TP 8 |
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| 47 | .B \-no-cycle |
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| 48 | Don't cycle modes. |
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| 49 | .SH ENVIRONMENT |
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| 50 | .PP |
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| 51 | .TP 8 |
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| 52 | .B DISPLAY |
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| 53 | to get the default host and display number. |
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| 54 | .TP 8 |
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| 55 | .B XENVIRONMENT |
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| 56 | to get the name of a resource file that overrides the global resources |
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| 57 | stored in the RESOURCE_MANAGER property. |
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| 58 | .SH X RESOURCES |
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| 59 | Notable X resources supported include the following which correspond |
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| 60 | to standard TV controls: |
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| 61 | .BR analogTVTint , |
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| 62 | .BR analogTVColor , |
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| 63 | .BR analogTVBrightness , |
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| 64 | and |
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| 65 | .BR analogTVContrast . |
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| 66 | They range from 0 to 100, except for tint which is an angle |
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| 67 | between -180 and +180. |
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| 68 | |
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| 69 | .SH SEE ALSO |
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| 70 | .BR X (1), |
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| 71 | .BR xteevee (1), |
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| 72 | .BR apple2 (1), |
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| 73 | .BR bsod (1), |
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| 74 | .BR xscreensaver (1), |
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| 75 | .BR xscreensaver\-demo (1), |
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| 76 | .BR xscreensaver\-getimage (1) |
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| 77 | .SH COPYRIGHT |
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| 78 | Copyright \(co 2003 by Trevor Blackwell. Permission to use, copy, modify, |
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| 79 | distribute, and sell this software and its documentation for any purpose is |
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| 80 | hereby granted without fee, provided that the above copyright notice appear |
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| 81 | in all copies and that both that copyright notice and this permission notice |
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| 82 | appear in supporting documentation. No representations are made about the |
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| 83 | suitability of this software for any purpose. It is provided "as is" without |
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| 84 | express or implied warranty. |
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| 85 | .SH AUTHOR |
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| 86 | Trevor Blackwell <tlb@tlb.org> |
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