50 lines
1.6 KiB
HTML
50 lines
1.6 KiB
HTML
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<html>
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<head>
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<title>The Official FVWM Homepage - Important Changes Since Fvwm-1.xx</title>
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</head>
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<body BACKGROUND="black-stone1.jpg"
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bgcolor="#000000" text="#ffffff"
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link="#FFFF88" vlink="#EEDDDD" alink="#ff0000">
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<center>
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<h1><font color="pink">The Official FVWM Homepage - Important Changes Since Fvwm-1.xx</font></h1>
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</center>
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<P>
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The module interface remained fairly stable when going from Fvwm-1.xx
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to Fvwm-2.xx. The change most likely to affect modules is the addition
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of an extra value to the header. This value is a timestamp. Most
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modules contained the line:
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<FONT COLOR="YELLOW"><PRE>
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unsigned long header[3];
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</FONT></PRE>
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This must be changed to:
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<FONT COLOR="YELLOW"><PRE>
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unsigned long header[HEADER_SIZE];
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</FONT></PRE>
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The rest of the changes are handled in the library function
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ReadFvwmPacket.
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<P>
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Another notable change is that modules do not have to read the .fvwmrc
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file themselves. They can request the appropriate lines from fvwm:
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<!-- dje, from FvwmAnimate.c -->
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<FONT COLOR="YELLOW"><PRE>
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static void ParseOptions() {
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char *buf;
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while (GetConfigLine(Channel,&buf), buf != NULL) {
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ParseConfigLine(buf);
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} /* end config lines */
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} /* end function */
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</FONT></PRE>
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This is the preferred method of getting module-specific
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configuration lines.
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<P>
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Starting in fvwm-2.0 pl 1, fvwm2 passes command line arguments
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to the modules, so if the user said ``FvwmPager 2 4'', the module
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will see argv[6] = 2 and argv[7] = 4, instead of argv[6] = ``2 4''.
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<P>
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Some new packet types are defined, and a few values were added to
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some packet types.
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<P>
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<hr>
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</body>
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</html>
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