XScreenSaver(1) XScreenSaver(1) NNAAMMEE slidescreen - permute the screen image like an 8-puzzle SSYYNNOOPPSSIISS sslliiddeessccrreeeenn [-display _h_o_s_t_:_d_i_s_p_l_a_y_._s_c_r_e_e_n] [-background _c_o_l_o_r] [-grid-size _p_i_x_e_l_s] [-ibw _p_i_x_e_l_s] [-increment _p_i_x_- _e_l_s] [-delay _u_s_e_c_s] [-delay2 _u_s_e_c_s] [-window] [-root] [-install] [-visual _v_i_s_u_a_l] DDEESSCCRRIIPPTTIIOONN The _s_l_i_d_e_s_c_r_e_e_n program takes an image of the screen, divides it into a grid, deletes a random square of that grid, and then randomly slides one of the neighbors of this "hole" into the hole (and repeat.) OOPPTTIIOONNSS _s_l_i_d_e_s_c_r_e_e_n accepts the following options: --wwiinnddooww Draw on a newly-created window. This is the default. --rroooott Draw on the root window. --iinnssttaallll Install a private colormap for the window. --vviissuuaall _v_i_s_u_a_l Specify which visual to use. Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual. --ggrriidd--ssiizzee _p_i_x_e_l_s The size of the grid cells. Default 70 pixels. --iibbww _p_i_x_e_l_s The size of the "gutter" between grid cells. Default 1 pixel. --iinnccrreemmeenntt _p_i_x_e_l_s How many pixels by which a piece should be moved when sliding to a new location. Default 10 pix- els. --ddeellaayy _m_i_c_r_o_s_e_c_o_n_d_s How much of a delay should be introduced between steps of the animation of the motion of each seg- ment. Default 50000, which is 0.05 seconds. This is closely related to the _-_i_n_c_r_e_m_e_n_t parameter. --ddeellaayy _m_i_c_r_o_s_e_c_o_n_d_s How much of a delay should be introduced between the end of the motion of one segment and the beginning of the motion of another. Default 1000000, which is one second. X Version 11 24-Nov-97 1 XScreenSaver(1) XScreenSaver(1) RREESSOOUURRCCEESS On some systems (currently, only SGIs), this program can, instead of grabbing a desktop image, grab a frame of video from an external camera and manipulate that instead. The following resources control that. ggrraabbVViiddeeooPPrroobbaabbiilliittyy (Float) What portion of the time to grab video rather than a screen image, between 0.0 and 1.0. Defaults to 0.5, or half the time. vviiddeeooDDeevviiccee (Integer) The number of the default video input device to check first. If unspecified, the default camera (from videopanel(1)) will be checked first. After that, all other available video input devices will be checked in order. The first one which produces a non-black image will be used. If all images are black, the others will be re-checked a few times before giving up and falling back to simply grabbing a desktop image (but note that this takes a few seconds, so if you don't actually have any video sources hooked up, you should consider turning off video grabbing by setting ggrraabbVViiddeeooPPrroobbaabbiilliittyy to 0.0.) vviiddeeooGGaaiinn (Float) The amount by which to brighten the grabbed image. This defaults to 2.2. EENNVVIIRROONNMMEENNTT DDIISSPPLLAAYY to get the default host and display number. XXEENNVVIIRROONNMMEENNTT to get the name of a resource file that overrides the global resources stored in the RESOURCE_MAN- AGER property. SSEEEE AALLSSOO XX(1), xxssccrreeeennssaavveerr(1) CCOOPPYYRRIIGGHHTT Copyright (C) 1992 by Jamie Zawinski. Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. No representations are made about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty. X Version 11 24-Nov-97 2 XScreenSaver(1) XScreenSaver(1) AAUUTTHHOORR Jamie Zawinski , 3-dec-92. X Version 11 24-Nov-97 3