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Shell Programming and Scripting
How to search pattern in file?
Post 302909920 by Corona688 on Monday 21st of July 2014 11:00:05 AM
07-21-2014
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LEARN ABOUT OSX
img-png
img-png(n) img-png(n) __________________________________________________________________________________________________________________________________________________ NAME
img-png - Img, Portable Network Graphics format (png) SYNOPSIS
package require Tk package require img::png ?1.4? image create photo ?name? ?options? _________________________________________________________________ DESCRIPTION
The package img::png is a sub-package of Img. It can be loaded as a part of the complete Img support, via package require Img, or on its own, via package require img::png. Like all packages of Img it does not provide new commands, but extends the existing Tk command image so that it supports files containing raster images in the Portable Network Graphics format (png). More specifically img::png extends Tk's photo image type. The name of the new format handler is png. This handler provides new additional configuration options. See section PNG OPTIONS for more detailed explanations. All of the above means that in a call like image create photo ?name? ?options? [1] Image data in png format (options -data and -file) is detected automatically. [2] The format name png is recognized by the option -format. In addition the value for the option is treated as list and may contain any of the special options listed in section PNG OPTIONS. PNG OPTIONS
The handler provides no true options at all, but accepts pairs of keys and values when writing a PNG file. Each pair will be written as a named text chunk where the key provides the name of the chunk and the value its contents. For example png Author <name> Title <title> Description ... TRANSPARENCY
If you want to write images to disk which contain transparency information (e.g. PNG with alpha channel) you need at least Tk 8.3. SEE ALSO
img-bmp, img-dted, img-gif, img-ico, img-intro, img-jpeg, img-pcx, img-pixmap, img-png, img-ppm, img-ps, img-raw, img-sgi, img-sun, img- tga, img-tiff, img-window, img-xbm, img-xpm KEYWORDS
image handling, png, tk COPYRIGHT
Copyright (c) 1995-2009 Jan Nijtmans <nijtmans@users.sourceforge.net> Img 1.4 img-png(n)