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diff --git a/ppmtowinicon.html b/ppmtowinicon.html new file mode 100644 index 00000000..e8a5c991 --- /dev/null +++ b/ppmtowinicon.html @@ -0,0 +1,132 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN"> +<HTML><HEAD><TITLE>Ppmtowinicon User Manual</TITLE></HEAD> +<BODY> +<H1>ppmtowinicon</H1> +Updated: 01 May 2004 +<BR> +<A HREF="#index">Table Of Contents</A> + +<A NAME="lbAB"> </A> +<H2>NAME</H2> + +ppmtowinicon - convert PPM image into a Windows .ico file + +<A NAME="lbAC"> </A> +<H2>SYNOPSIS</H2> + +<B>ppmtowinicon</B> + +[<b>-andpgms</b>] + +[<b>-output=</b><i>output.ico</I>] + +[<I>ppmfile</I> [<i>andfile</i>] ...] + +<A NAME="lbAD"> </A> +<H2>DESCRIPTION</H2> + +<p>This program is part of <a href="index.html">Netpbm</a>. + +<p><b>ppmtowinicon</b> reads one or more PPM images as input and +produces a Microsoft Windows .ico file as output. + +<P>A Windows icon contains 1 or more images, at different resolutions +and color depths. When Windows wants to display the icon, it searches +through the images to find the one the best matches the number of colors +and resolution of the display. + +<P>Microsoft recommends including at least the following formats in each +icon. + +<ul> +<li>16 x 16 - 4 bpp +<li>32 x 32 - 4 bpp +<li>48 x 48 - 8 bpp +</ul> + +<p>If you don't specify any input files, input is from Standard Input. + +<p>Output is to Standard Output unless you specify <b>-output</b>. + +<h3 id="transparency">Transparency</h3> + +<p>If you specify the <b>-andmask</b> option, you get (partly) +transparent icons. In that case, your arguments are pairs of file +names, with the first file name being that of the image and the second +file name being that of a standard Netpbm PGM transparency mask (see +the <a href="pgm.html">pgm format specification</a>). + +<p>In a .ico file, there is no such thing as partial transparency +(translucency). Where the PGM mask says completely opaque, the icon will +be opaque. Everywhere else, the icon will be transparent. Note that +as with any Netpbm program, you can use a PBM image for the transparency +mask and <b>ppmtowinicon</b> will treat it like a PGM. + +<P>The and mask is like an alpha mask, except for what it signifies in +the "not opaque" areas. In the usual case, the foreground image is +black in those areas, and in that case the areas are fully transparent +-- the background shows through the icon. But in general, a not +opaque pixel signifies that the background and foreground should be +merged as follows: The intensities of the color components in the +forgeground and background are represented as binary numbers, then +corresponding bits of the background and foreground intensities are +exlusive-or'ed together. So there is a sort of reverse video effect. + +<p>If you don't want this special effect and instead want +straightforward transparency, use the <b>-truetransparent</b> option. +This causes <b>ppmtowinicon</b> to make the base image black +everywhere your transparency mask says transparent, regardless of what +color you input image is at that location. + +<p>If you don't specify <b>-andmask</b>, <b>ppmtowinicon</b> puts +all-opaque and masks into the .ico file. + +<A NAME="lbAE"> </A> +<H2>OPTIONS</H2> + +<DL COMPACT> +<DT><B>-andpgms</B> + +<DD>Include transparency information in the icons. +See the <a href="#transparency">transparency section</a>. + +<DT><B>-output=</b><i>output.ico</i> + +<DD>Name of output file. By default, <b>ppmtowinicon</b> writes the +icon to Standard Output. + +<DT><B>-truetransparent</b> + +<dd>Make transparency in the icon normal instead of the special reverse +video effect. See the <a href="#transparency">transparency section</a>. + +</DL> + +<A NAME="lbAF"> </A> +<H2>SEE ALSO</H2> + +<B><A HREF="winicontoppm.html">winicontoppm</A></B>, +<B><A HREF="ppm.html">ppm</A></B> +<B><A HREF="pgm.html">pgm</A></B> + +<A NAME="lbAG"> </A> +<H2>AUTHOR</H2> + +Copyright (C) 2000 by Lee Benfield. + +<HR> +<A NAME="index"> </A> +<H2>Table Of Contents</H2> +<UL> +<LI><A HREF="#lbAB">NAME</A> +<LI><A HREF="#lbAC">SYNOPSIS</A> +<LI><A HREF="#lbAD">DESCRIPTION</A> +<UL> + <LI><A HREF="#transparency">TRANSPARENCY</A> + </UL> +<LI><A HREF="#lbAE">OPTIONS</A> +<LI><A HREF="#lbAF">SEE ALSO</A> +<LI><A HREF="#lbAG">AUTHOR</A> +</UL> +</BODY> +</HTML> |