Files not updating in folder

This is a discussion on Files not updating in folder within the Tech Board forums, part of the Community Boards category; I have a HTML application that interfaces to my Hauppage WinTv card. This HTML app takes a snapshot of 3 ...

  1. #1
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    Files not updating in folder

    I have a HTML application that interfaces to my Hauppage WinTv card. This HTML app takes a snapshot of 3 different channels at approximately 30 second intervals and saves the snapshot to a jpeg file in a selected folder. The jpeg files will be replaced by more current files for the first 10 minutes the app is running. But eventually, the snapshots in the folder will NOT be replaced by more current snapshots. But if I open a command prompt to the folder storing the jpeg files and do a DIR command several times, the current files start to be replaced by the latest snapshot.

    Thus, I have to execute DIR commands every so often in the folder to force the jpeg files to be updated.

    Can anybody help me resolve this file update problem?

    thanx

    Bob

  2. #2
    5|-|1+|-|34|) ober's Avatar
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    Umm... running a directory command on the folder will not do anything, unless you need to update the listing for some program to read it, in which case I'd imagine you'd get a directory listing before you try to grab any files.

    Again, I don't fully understand the problem, so maybe you could explain it a little better?!

  3. #3
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    My HTML app is writing three jpeg files to one directory. File 1 is written after 30 seconds, file 2 is written after 60 seconds and file 3 is written after 90 seconds. Then at 120 seconds, file 1 is written to the directory, overwriting the original file 1 at 150 seconds file 2 is written to the directory, overwriting file 2 etc. Let's say I start the app at 15:00 and check the app at 18:00, I will find that the time stamps for the three files are at around 16:10 even though the HTML app indicates that a file is being written every 30 seconds. Now if I open up a command prompt and go to the destination directory (where the JPEG files are being written to) and do a DIR command a few times, the time stamp on the JPEG files will start to change to 18:00 indicating that the directory is now again getting updated files every 30 seconds. The 30 second updating of each file will continue for about an hour and then the files are no longer updated in the directory EVEN though the app indicates that files are written every 30 seconds. Now I again open a command prompt and do a DIR a few times and AGAIN the time stamps on the files start changing again.

  4. #4
    5|-|1+|-|34|) ober's Avatar
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    It sounds to me like either your app isn't working correctly or your filesystem is taking a poop after a certain period. Is there anyway to reset your app after each image creation? I would assume that you're eating memory.

    And just as a technical note, an "HTML app" is incorrect usage since HTML alone cannot create/manage jpeg files. You're probably using a scripting language like Perl/PHP/Javascript.

    Can you show us the code? And how are you running the script? Crontab? Windows Task Scheduler? Javascript timer?

  5. #5
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    I'm using javascript in HTML. Listed below is the complete code. I modified an example from Hauppage to just display channels 75, 77 and 79
    Code:
    <HTML>
    <HEAD>
      <style type="text/css">
        P { margin-top:2px;}
        FORM { margin-bottom:1px;}
      </style>
      <SCRIPT LANGUAGE="JavaScript" FOR="window">
      <!--
        /* To do: keys for volume change */
        
        var filecounter=1;
        var folder = "c:\\progra~1\\apache~1\\apache2\\realdocs";
        var filename = "wtv";
        var fileformat = 2;
        var fileformat_desc = "JPG";
        var interval = 30.0;
        var filename_fmt_desc = "date_time";
        var quality = 85;
        var ch = 75; 
    	var tmp = 0;
        var vol = 50; /* Volume in % */
        var videowidth = 320;
        var videoheight = 240;
        var preview = true;
    
        var hotkeys = 1;
        var frozen = 0; /* used to unfreeze image when changing channels and image was frozen */
    
        /* Declare global variables used for window.setInterval */
        var folder1;
        var filename1;
        var fileformat1;
        var quality1;
        var filename_fmt_desc1;
    
        function TVsource(source) {
          WinTVocx1.VideoSource = source;
          window.focus();
        }
        
        function TVtune(channel) {
          WinTVocx1.Channel = channel;
        }
        
        function display_volume(v) {
          window.status = "Volume = " + v + "%";
        }
    
        function TVvolume_up() {
          WinTVocx1.VolumeUp();
          vol = WinTVocx1.Volume;
          display_volume(vol);
        }
        
        function TVvolume_dn() {
          WinTVocx1.VolumeDown();
          vol = WinTVocx1.Volume;
          display_volume(vol);
        }
        
        function TVtogglemute() {
          WinTVocx1.ToggleMute();
        }
        
        function TVtogglemute2() {
          WinTVocx1.ToggleMute();
          if (WinTVocx1.Mute) frm2.button_mute.value = "UnMute"; else frm2.button_mute.value = "Mute";
        }
        
        function TVtogglefreeze2() {
          WinTVocx1.ToggleFreezeVideo();
          if (WinTVocx1.FreezeVideo) {
            frozen = 1;
            frm3.button_freeze.value = "Unfreeze"; }
          else { 
            frozen = 0;
            frm3.button_freeze.value = "Freeze";
          }
          defaultStatus = "frozen = " + frozen;
        }
        
        function TVget_channel() {
          return WinTVocx1.Channel;
        }
    
        function TVchannelup() {
          WinTVocx1.ChannelUp();
          window.focus();
        }
        
        function TVchanneldn() {
          WinTVocx1.ChannelDown();
          window.focus();
        }
        
        function TVchannelup2() {
          if (frozen == 1) TVtogglefreeze2();
          WinTVocx1.ChannelUp();
          ch = TVget_channel();
          frm3.channel_field.value = ch;
          window.focus();
        }
        
        function TVchanneldn2() {
          if (frozen == 1) TVtogglefreeze2();
          WinTVocx1.ChannelDown();
          ch = TVget_channel();
          frm3.channel_field.value = ch;
          window.focus();
        }
        
        function TVsavetodisk() {
          WinTVocx1.SaveToDisk();
        }
        
        function TVsavetodiskEx(FileName, fileformat, ColorDepth, CompressionOption, Quality) {
          WinTVocx1.SaveToDiskEx(FileName, fileformat, ColorDepth, CompressionOption, Quality);
        }
        
        function TVtoolbar(position) {
          WinTVocx1.ToolBarPosition = position;
        }
        
        function TVcolordialog() {
          WinTVocx1.ShowColorControlBox();
        }
    
        function TVsuite() {
          WinTVocx1.ShowChannelExplorer();
          ch = WinTVocx1.Channel;
          frm3.channel_field.value = ch;
        }
    
        function TVsize(w, h) {
          WinTVocx1.Height = h;
          WinTVocx1.Width = w;
          defaultStatus="width=" + w + " height=" + h;
        }
        
        function find_height(w) {
          switch(w) {
            case 320: return 240;
            case 352: return 288;
            case 384: return 288;
            case 576: return 432;
            case 640: return 480;
            case 720: return 576;
            case 768: return 576;
            default: alert("Could not find height");
          }
        }
    
        function check_first_line() {
          if (document.all.tags("!")[0]) {
            var x = document.all.tags("!")[0].outerHTML;
            if (x.indexOf("saved from url") >= 0) alert("Please edit this HTML document and remove the first line:\n\n" + x);
          }
        }
    
        function replace_char(str1, c1, c2) {
          var str2 = "";
          for (i = 0; i <= str1.length-1; i++) {
            if (str1.charAt(i) == c1) str2 = str2 + c2; else str2 = str2 + str1.charAt(i);
          }
          return str2;
        }
    
        function str(n, len) {
          nstr = "" + n;
          while (nstr.length <len) {
          nstr = "0" + nstr; }
          return nstr; 
        }
        
        function date_str(separator) {
          var now = new Date();
          var day = now.getDate();
          var month = now.getMonth() + 1;
          var year = now.getYear();
          d_str = "" + year + separator + str(month, 2) + separator + str(day, 2);
          return d_str;
        }
        
        function time_str(separator) {
          var now = new Date();
          var h = now.getHours();
          var m = now.getMinutes();
          var s = now.getSeconds();
          t_str = "" + str(h, 2) + separator + str(m, 2) + separator + str(s, 2);
          return t_str;
        }
        
        function close_window() {
          window.close();
        }
        
        function set_cookie_value(name, val, lifetime) {
          /* varname, value, lifetime (days) */
          /* sets one varname/value pair in cookie and updates expiring date */
          /* empty strings are not saved correctly! */
          var d = new Date();
          d.setTime(d.getTime() + (24*60*60*1000*lifetime));
          document.cookie = name + "=" + escape(val) + ';expires=' + d.toGMTString(); 
        }
        
        /* x=4; y=2 */
        /* 01234567 */
        /* */
        function get_cookie_value(name) {
          var data;
          var val =  "undefined";
          var found = 0;
          var semi;
          if (document.cookie) {
            data = document.cookie;
            while (data.length > 0 && found == 0 ) {
              if (data.slice(0,1) == ' ') data = data.slice(1, data.length)
              if ((name + '=') == data.slice(0, name.length + 1)) {
                found = 1; 
                data = data.slice(1 + name.length, data.length);
                semi = data.indexOf(";");
                if (semi < 0) semi = data.length;
                val = data.slice(0, semi);
              } else {
                semi = data.indexOf(";");
                if (semi < 0) {semi = data.length}
                data = data.slice(1 + semi, data.length);
              }
            }
          }
          return unescape(val);
        }
    
        function save_to_cookie() {
          read_form1(document.frm1);
          set_cookie_value("filename", filename, 365);
          set_cookie_value("fileformat", fileformat, 365);
          set_cookie_value("folder", folder, 365);
          set_cookie_value("fileformat_desc", fileformat_desc, 365);
          set_cookie_value("filename_fmt_desc", filename_fmt_desc, 365);
          
          read_form2(document.frm2);
          set_cookie_value("videowidth", videowidth, 365);
          set_cookie_value("videoheight", videoheight, 365);
          set_cookie_value("preview", preview, 365);
          
          read_form3(document.frm3);
          set_cookie_value("interval", interval, 365);
    
          /* Also save some global vars */
          set_cookie_value("vol", vol, 365);
          set_cookie_value("filecounter", filecounter, 365);
        }
        
        function read_from_cookie() {
          var x;
          var undef = "undefined";
          x = get_cookie_value("filename"); if (x != undef) filename = x;
          x = get_cookie_value("fileformat"); if (x != undef) fileformat = x;
          x = get_cookie_value("folder"); if (x != undef) folder = x;
          x = get_cookie_value("fileformat_desc"); if (x != undef) fileformat_desc = x;
          x = get_cookie_value("filename_fmt_desc"); if (x != undef) filename_fmt_desc = x;
          x = get_cookie_value("videowidth"); if (x != undef) videowidth = parseInt(x);
          x = get_cookie_value("videoheight"); if (x != undef) videoheight = parseInt(x);
          x = get_cookie_value("preview"); preview = (x == "true");
    
          x = get_cookie_value("interval"); if (x != undef) interval = Number(x);
          
          /* Also read some global vars */
          x = get_cookie_value("vol"); if (x != undef) vol = parseInt(x);
          x = get_cookie_value("filecounter"); if (x != undef) filecounter = parseInt(x);
        }
        
        function save(folder, filename, fileformat, quality, filename_fmt_desc) {
          var fullname;
          var extension;
          var ColorDepth=32;
          var CompressionOption=64;
          var part2 = "";
          if (fileformat ==  2) extension = ".jpg";
          if (fileformat ==  7) extension = ".png";
          if (fileformat == 12) extension = ".bmp";
          if (filename_fmt_desc == "time") part2 = time_str("");
          if (filename_fmt_desc == "date_time") part2 = date_str("") + "_" + time_str("");
          if (filename_fmt_desc == "counter") {
            part2 = str(filecounter, 4);
            filecounter = filecounter + 1;
          }
          if (filename_fmt_desc == " ") part2 = "";
          var f = folder;
          if (f.length > 0) if (f.charAt(f.length - 1) != '\\') f = f + "\\";
    	  fullname = f + frm3.channel_field.value + extension;
         /* fullname = f + filename + part2 + extension; */
          defaultStatus = "Saving " + fullname; 
        
    /*	var fso; */
      /* fso = new ActiveXObject("Scripting.FileSystemObject"); */
    /*   fso.DeleteFile(fullname); */
    
    	  TVsavetodiskEx(fullname, fileformat, ColorDepth, CompressionOption, quality);
          defaultStatus = "Saving " + fullname + " ... done.";
          if (preview) view_image(fullname);
    	  tmp = ch;
    	  if(tmp == 75) ch =77;
    	  if(tmp == 77) ch = 79;
    	  if(tmp == 79) ch = 75;
    	  frm3.channel_field.value = ch;
    	  TVtune(ch);
    	  
        }
        
        var autosave_hdl;
        var autosave_flg = 0;
        
        function start_autosave(folder, filename, fileformat, quality, sec, filename_fmt_desc) {
          if (autosave_flg == 0) {
            autosave_flg = 1;
            document.frm3.button_autosave.value = "--- Stop ---";
            folder1 = folder;
            filename1 = filename;
            fileformat1 = fileformat;
            quality1 = quality;
            filename_fmt_desc1 = filename_fmt_desc;
            save(folder1, filename1, fileformat1, quality1, filename_fmt_desc1); /* save the first image */
            autosave_hdl = window.setInterval("save(folder1, filename1, fileformat1, quality1, filename_fmt_desc1)", 1000 * sec);
          } else {
            autosave_flg = 0;
            window.clearInterval(autosave_hdl);
            document.frm3.button_autosave.value = "AutoSave";
          }
        }
        
        function stop_autosave() {
          autosave_flg = 0;
          window.clearInterval(autosave_hdl);
          document.frm3.button_autosave.value = "AutoSave";
        }
        
        function reset_filecounter() {
          if (confirm("Counter = " + filecounter + "\n\nSet Counter to 1 ?")) filecounter = 1;
          defaultStatus = "Counter = " + filecounter;
        }
    
        function init_form1(form) {
          form.field_folder.value = folder;
          form.field_filename.value = filename;
          var i = -1;
          var j = 0;
          while ((j < form.fileformat.length) && i < 0 ) {
            if (form.fileformat.options[j].text == fileformat_desc) {i = j};
            j = j + 1;
          }
          form.fileformat.selectedIndex = i;
          var i = -1;
          var j = 0;
          while ((j < form.filename_fmt.length) && i < 0 ) {
            if (form.filename_fmt.options[j].text == filename_fmt_desc) {i = j};
            j = j + 1;
          }
          form.filename_fmt.selectedIndex = i;
        }
        
        function init_form2(form) {
          var i = -1;
          var j = 0;
          while ((j < form.videowidth_selector.length) && i < 0 ) {
            if (form.videowidth_selector.options[j].text == "" + videowidth) {i = j};
            j = j + 1;
          }
          if (i < 0) i = 0;
          form.videowidth_selector.selectedIndex = i;
          i = -1;
          j = 0;
          while ((j < form.videoheight_selector.length) && i < 0 ) {
            if (form.videoheight_selector.options[j].text == "" + videoheight) {i = j};
            j = j + 1;
          }
          if (i < 0) i = 0;
          form.videoheight_selector.selectedIndex = i;
          form.preview_checkbox.checked = preview;
        }
        
        function init_form3(form) {
          form.channel_field.value = TVget_channel();
          form.interval_field.value = interval;
        }
    
        function read_form1(form) {
          filename = form.field_filename.value;
          folder = form.field_folder.value;
          var i = form.fileformat.selectedIndex;
          fileformat_desc = form.fileformat.options[i].text;
          if (fileformat_desc == "JPG") fileformat =  2;
          if (fileformat_desc == "PNG") fileformat =  7;
          if (fileformat_desc == "BMP") fileformat = 12;
          var j = form.filename_fmt.selectedIndex;
          filename_fmt_desc = form.filename_fmt.options[j].text;
        }
        
        function read_form2(form) {
          var i = form.videowidth_selector.selectedIndex;
          videowidth = parseInt(form.videowidth_selector.options[i].text);
          var j = form.videoheight_selector.selectedIndex;
          videoheight = parseInt(form.videoheight_selector.options[j].text);
          preview = form.preview_checkbox.checked;
        }
        
        function read_form3(form) {
          var x;
          x = form.interval_field.value;
          if (isNaN(x)) {
            x = replace_char(x, ',', '.');
            x = Number(x);
          }
          if (isNaN(x)) interval = 1; else interval = x;
          defaultStatus = "interval = " + interval + " seconds";
        }
    
        function check_keypress() {
          if (hotkeys == 1) {
            k = event.keyCode;
            defaultStatus = "" + k;
            if (k == 32) save(folder, filename, fileformat, 75, filename_fmt_desc);
            if (k == 27) stop_autosave();
            if (k == 43) TVchannelup2();
            if (k == 45) TVchanneldn2();
          }
        }
        
        document.onkeypress = check_keypress;
        
        function disable_hotkeys() {
          hotkeys = 0;
        }
        
        function enable_hotkeys() {
          hotkeys = 1;
        }
        
        function view_image(filename) {
          window.open(filename, "window_preview", "width=340,height=260,toolbar=yes,location=no,status=no,menubar=no,resizable=yes,scrollbars=no");
    /*      window.open(filename, "window_preview", "width=" + videowidth + 20 + ",height=" + videoheight + 20 + ",toolbar=yes,location=no,status=no,menubar=no,resizable=yes,scrollbars=no"); */
        }
    
        function open_folder(foldername) {
          window.open(foldername, "window_folder", "toolbar=yes,location=yes,status=yes,menubar=yes,resizable=yes,scrollbars=yes");
        }
    
        function check_WinTVocx() {
          if (! WinTVocx1.Height) alert("Please install the WinTV OCX and MS Visual Basic Runtime 6.0 !");
        }
    
        function check_colors() {
          if (WinTVocx1.Brightness < 10 || WinTVocx1.Contrast < 10) {
            alert("Click OK to check color values!");
            TVcolordialog();
          }
        }
    
        function tbl_width() {
          /* window.resizeTo(document.all.tbl2.offsetWidth,document.all.tbl2.offsetHeight); */
          window.defaultStatus = "" + document.all.tbl2.offsetWidth + ", " + document.body.clientWidth;
          while (document.all.tbl2.offsetWidth + 8 > document.body.clientWidth) window.resizeBy(8,0);
          while (document.all.tbl2.offsetHeight + 8 > document.body.clientHeight) window.resizeBy(0,8);
        }
    
      //-->
      </SCRIPT>
      <TITLE>WinTV window</TITLE>
    </HEAD>
    <BODY bgcolor="#A0A0A0" text="#000000" topmargin="4" leftmargin="4" NAME="bdy" onUnload="save_to_cookie()" >
        <TABLE ID="tbl2" BORDER="0" CELLSPACING="0" CELLPADDING="5" bgcolor="#A0A0A0">
          <TR>
            <TD COLSPAN=3 NOWRAP>
              <P align="center">
              <FORM NAME="frm1">
                <INPUT TYPE=button VALUE="Folder:" NAME="button_folder" TITLE="Open folder" onClick="open_folder(form.field_folder.value)">&nbsp;
                <INPUT TYPE="text" TITLE="Enter name of existing folder" NAME="field_folder" SIZE="35" onChange="read_form1(this.form)" onfocus="disable_hotkeys()" onBlur="enable_hotkeys()">
                File:
                <INPUT TYPE="text" TITLE="Enter first part of the filename" NAME="field_filename" SIZE="8" onChange="read_form1(this.form)" onfocus="disable_hotkeys()" onBlur="enable_hotkeys()">
                + 
                <SELECT NAME="filename_fmt" onChange="read_form1(this.form)" onfocus="disable_hotkeys()" onBlur="enable_hotkeys()">
                  <OPTION SELECTED>date_time 
                  <OPTION>time 
                  <OPTION>counter
                  <OPTION>&nbsp;
                </SELECT>
                <SELECT NAME="fileformat" onChange="read_form1(this.form)" onfocus="disable_hotkeys()" onBlur="enable_hotkeys()"> 
                  <OPTION SELECTED>JPG 
                  <OPTION>PNG 
                  <OPTION>BMP
                </SELECT>
              </FORM>
              <P>
            </TD>
          </TR>
          <TR valign=top>
          <TD>
            <P>
            <FORM NAME="frm2">
              <P align="right">
              <INPUT TYPE=button VALUE="Color" TITLE="Open color settings dialog" NAME="button_color" onClick="TVcolordialog()">
              <P align="right">
              <SELECT NAME="videowidth_selector" onChange="read_form2(this.form);videoheight=find_height(videowidth);init_form2(this.form);TVsize(videowidth,videoheight)" onfocus="disable_hotkeys()" onBlur="enable_hotkeys()">
                <OPTION SELECTED>320
                <OPTION>352
                <OPTION>384
                <OPTION>576
                <OPTION>640
                <OPTION>720
                <OPTION>768
              </SELECT>
              <P align="right">
              <SELECT NAME="videoheight_selector" onChange="read_form2(this.form);TVsize(videowidth,videoheight)" onfocus="disable_hotkeys()" onBlur="enable_hotkeys()"> 
                <OPTION SELECTED>240
                <OPTION>288
                <OPTION>432
                <OPTION>480
                <OPTION>576
              </SELECT>
              <P align="right">
              <INPUT TYPE=button VALUE="Vol &uarr;" NAME="button_volume_up" TITLE="Volume up" onClick="TVvolume_up()">
              <P align="right">
              <INPUT TYPE=button VALUE="Vol &darr;" NAME="button_volume_dn" TITLE="Volume down" onClick="TVvolume_dn()">
              <P align="right">
              <INPUT TYPE=button VALUE="Mute" NAME="button_mute" TITLE="Mute on/off" onClick="TVtogglemute2()">
              <P align="right">
              <INPUT TYPE=button VALUE="Close" TITLE="Close window" onClick="close_window()">
              <P align="right">
              <INPUT TYPE=button VALUE="Reload" TITLE="Reload page" onClick="location.reload();window.focus()">
              <P align="right">
              <INPUT TYPE="checkbox" NAME="preview_checkbox" VALUE="on" TITLE="Enable preview of saved image" onChange="read_form2(this.form)" onfocus="disable_hotkeys()" onBlur="enable_hotkeys()">&nbsp;Preview
            </FORM>
            <P>
          </TD>
          <TD>
            <P align="center">
            <OBJECT ID="WinTVocx1" WIDTH=320 HEIGHT=240 CLASSID="CLSID:41F3F2F6-0ABE-11D8-BEB2-00A0C9F21FC7" CODEBASE="hcwWinTV.ocx"></OBJECT>
          </TD>
          <TD>
            <P>
            <FORM NAME="frm3">
              <P>
              <INPUT TYPE=button VALUE="Suite" NAME="button_suite" TITLE="Open Channel Manager" onClick="TVsuite()">
              <P>
              <INPUT TYPE=text VALUE="" NAME="channel_field" TITLE="Current tuner channel" SIZE=3 READONLY>
              <P>
              <INPUT TYPE=button VALUE="Channel &uarr;" NAME="button_channel_up" TITLE="Channel up" onClick="TVchannelup2()">&nbsp;
              <P>
              <INPUT TYPE=button VALUE="Channel &darr;" NAME="button_channel_dn" TITLE="Channel down" onClick="TVchanneldn2()">&nbsp;
              <P>
              <INPUT TYPE=button VALUE="Freeze" NAME="button_freeze" TITLE="Freeze / Unfreeze image" onClick="TVtogglefreeze2()">
              <P>
              <INPUT TYPE=button VALUE="Save As" NAME="button_save_as" TITLE="Save image as..." onClick="TVsavetodisk()">
              <P>
              <INPUT TYPE=button VALUE="Save" NAME="button_save" TITLE="Save image" onClick="save(folder, filename, fileformat, quality, filename_fmt_desc)">
              <P>
              <INPUT TYPE=button VALUE="AutoSave" NAME="button_autosave" TITLE="Start / Stop auto saving of images" onClick="start_autosave(folder, filename, fileformat, quality, interval, filename_fmt_desc)">
              <P>
              <INPUT TYPE="text" NAME="interval_field" SIZE="6" TITLE="Enter intervall in seconds" onChange="read_form3(this.form)" onfocus="disable_hotkeys()" onBlur="enable_hotkeys()">&nbsp;sec
              <P>
              <INPUT TYPE=button VALUE="Reset" TITLE="Reset counter" NAME="button_reset" onClick="reset_filecounter()">
            </FORM>
            <P>
          </TD>
          </TR>
          <TR>
            <TD COLSPAN=3>&nbsp;
            </TD>
          </TR>
        </TABLE>
    <SCRIPT LANGUAGE="JavaScript" FOR="window">
      <!--
      check_first_line()
      check_WinTVocx()
        WinTVocx1.Enabled = 1;
      check_colors();
      WinTVocx1.ToolBarPosition = 4; /* hide toolbar */
      WinTVocx1.AspectRatio = 1;
      
      init_form1(document.frm1);
      read_form1(document.frm1);
      init_form2(document.frm2);
      read_form2(document.frm2);
      init_form3(document.frm3);
      WinTVocx1.Volume = vol;
      document.frm3.channel_field.value = 77;
      window.setTimeout("TVsize(videowidth,videoheight)",250); 
      ch = 77;
      TVtune(ch);
      //-->
    </SCRIPT>
    </BODY></HTML>

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