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I recently went through this also... This very simple HTML/_javascript_ example uses a timer rather than an actual command button, but I think you can make that jump. In the example the timer merely calls the cgi and prints the response in the textbox (in your case it would print a blank line). You would -- as mentioned in a previous e-mail -- use a command click action rather than the timer event. Replace 'fastcgi.fcgi?'+Date() with the name of your cgi program and arguments (in this example my only arguments are the date). Hope this helps... I do think your question has many things to do with embedded systems and TS equipment in general... a HMI is a very useful thing for an embedded device. Content-type: text/html <HTML><HEAD> <TITLE>This is an interface to a fcgi program</TITLE> <META HTTP-EQUIV="expires" CONTENT="0" </HEAD> <script language="_javascript_"> <!-- var httpRequest = new XMLHttpRequest() ; var c=0 ;function status() { var x = document.getElementsByName("comments") ; x[0].value=httpRequest.status+': '+httpRequest.statusText ; InitializeTimer() ; } function InitializeTimer() { test() ; var t=self.setTimeout( "InitializeTimer()", 250 ) ; } function test() { var x = document.getElementsByName("comments") ; httpRequest.open( 'POST', 'fastcgi.fcgi?'+Date(), false ) ; httpRequest.send(null) ; c=c+1 ; x[0].value=c+' '+httpRequest.responseText ; } //--> </script> <BODY > <PRE>Argument 0: ./testA.cgi </PRE><textarea name="comments" cols="40" rows="10">Enter your comments here...</textarea><br><input type="submit" value="Submit" /> </BODY> </HTML> This is a CGI (but more fundementally just an HTTP/HTML question) and has nothing to do with: 1) embedded systems 2) the TS-7xxx series of ARM board 3) any TS equipment wrote on 09/05/2008 11:44:10 PM: > Hi, > > I've designed a html web page GUI, with buttons that invoke C > executables to control GPIO on my ts-7260. This works very nice. > After the C executable is complete, the web page GUI changes to a > blank page. The brouser's url is, for example, 192.168.0.50/cgi- > bin/button.cgi? > The html form method is GET, where I pass parameters from the GUI to > the C executable via the environment variable QUERY_STRING. This again > happens from the button push, and the form action="" The > button.cgi has a standard header, as: printf("Context-type: > text/plain\n\n"). It then does its GPIO operations, and returns 0; > Button.cgi is not meant to send anything back to the GUI. > > Is there a way to keep the web page GUI from switching to blank after > pushing the button? > Any help is appreciated...if you need more info, let me know. > Thanks, > Steve > > > ------------------------------------ > > Yahoo! Groups Links > > <*> To visit your group on the web, go to: > http://groups.yahoo.com/group/ts-7000/ > > <*> Your email settings: > Individual Email | Traditional > > <*> To change settings online go to: > http://groups.yahoo.com/group/ts-7000/join > (Yahoo! ID required) > > <*> To change settings via email: > > > > <*> To unsubscribe from this group, send an email to: > > > <*> Your use of Yahoo! Groups is subject to: > http://docs.yahoo.com/info/terms/ > __._,_.___
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