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  • اضيف في: 2012-11-09 00:00:00
  • اخر تحديث: 11/09/2012
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Description




X11::Protocol::Other is a Perl module that provides various helper functions for the X11::Protocol class.SYNOPSIS use X11::Protocol::Other;FUNCTIONSScreen Finding$number = root_to_screen ($X, $root)$hashref = root_to_screen_info ($X, $root) Return the screen number or screen info hash for a given root window. $root can be any XID integer on $X. If it's not one of the root windows then the return is undef.$number = default_colormap_to_screen ($X, $colormap)$hashref = default_colormap_to_screen_info ($X, $colormap) Return the screen number or screen info hash for a given default colormap.  $colormap can be any XID integer on $X. If it's not one of the screen default colormaps then the return is undef.Visuals$bool = visual_is_dynamic ($X, $visual_id)$bool = visual_class_is_dynamic ($X, $visual_class) Return true if the given visual is dynamic, meaning colormap entries on it can be changed to change the colour of a given pixel value. $visual_id is one of the visual ID numbers, ie. one of the keys in $X->{'visuals'}. Or $visual_class is a VisualClass string like "PseudoColor" or corresponding integer such as 3.Window Info($width, $height) = window_size ($X, $window)$visual_id = window_visual ($X, $window) Return the size or visual ID of a given window. $window is an integer XID on $X. If it's one of the root windows then the return values are from the screen info hash in $X, otherwise the server is queried with GetGeometry or GetWindowAttributes. These functions are handy when there's a good chance $window might be a root window and therefore not need a server round trip.Colour Parsing($red16, $green16, $blue16) = hexstr_to_rgb($str) Parse a given RGB colour string like "#FF00FF" into 16-bit red, green, blue components. The return values are always in the range 0 to 65535. The strings recognised are 1, 2, 3 or 4 digit hex. #RGB #RRGGBB #RRRGGGBBB #RRRRGGGGBBBB If $str is unrecognised then the return is an empty list, so for instance my @rgb = hexstr_to_rgb($str) or die "Unrecognised colour: $str"; The digits of the 1, 2 and 3 forms are replicated as necessary to give a 16-bit range. For example 3-digit style "#321FFF000" gives return values 0x3213, 0xFFFF, 0. Or 1-digit "#F0F" is 0xFFFF, 0, 0xFFFF. Notice "F" expands to 0xFFFF so an "F", "FF" or "FFF" all mean full saturation the same as a 4-digit "FFFF". Would it be worth recognising the Xcms style "rgb:RR/GG/BB"? Perhaps that's best left to full Xcms, or general colour conversion modules. The X11R6 X(7) man page describes the "rgb:" form, but just "#" is much more common.Product's homepage Requirements:

· Perl









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