Width/Height return % unit instead px

Hi willy.sm,

the preferences.rulerUnits are your friend:

if(documents.length >1) {
var startRulerUnits = preferences.rulerUnits;
preferences.rulerUnits = Units.PIXELS;
//var imgR = documents[0];
//var imgD = documents[1];
//alert (documents[0].width);
alert (documents[0].width.as('px'));
//alert (documents[0].width.as('px'),'px');
//alert (documents[1].width);
alert (documents[1].width.as('px'));
//alert (documents[1].width.as('px'),'px');
preferences.rulerUnits = startRulerUnits; // Reset units to original settings  
}

Have fun

Set Photoshop units.  Ypu may want to add some boiler plate code before you get int your processing code. for example:

function main() {
  // declare local variables
  var orig_ruler_units = app.preferences.rulerUnits;
  var orig_type_units = app.preferences.typeUnits;
  var orig_display_dialogs = app.displayDialogs;
  app.preferences.rulerUnits = Units.PIXELS; // Set the ruler units to PIXELS
  app.preferences.typeUnits = TypeUnits.POINTS;   // Set Type units to POINTS
  app.displayDialogs = DialogModes.NO; // Set Dialogs off
  try { code(); }
  // display error message if something goes wrong
  catch(e) { alert(e + ': on line ' + e.line, 'Script Error', true); }
        // catch(e){$.writeln(e)}  
  app.displayDialogs = orig_display_dialogs; // Reset display dialogs 
  app.preferences.typeUnits  = orig_type_units; // Reset ruler units to original settings 
  app.preferences.rulerUnits = orig_ruler_units; // Reset units to original settings
}

You are also using Document canvas as image width  and height Image can be on layers and layers be any size  if thers are areas outside the document canvas the document canvas size is like a clipping mask.  Layer have rectangle bounds.

// enable double-clicking from Mac Finder or Windows Explorer
#target photoshop // this command only works in Photoshop CS2 and higher
// bring application forward for double-click events
app.bringToFront();
// Save the current preferences
var startRulerUnits = app.preferences.rulerUnits;
// Set Photoshop to use pixels 
app.preferences.rulerUnits = Units.PIXELS;
try{
  var LB = activeDocument.activeLayer.bounds;
  var LWidth = (LB[2].value) - (LB[0].value);
  var LHeight = (LB[3].value) - (LB[1].value);
  MarkX((LB[0].value + LWidth/2));
  MarkX(LB[0].value);
  MarkX(LB[2].value);
  MarkY((LB[1].value + LHeight/2));
  MarkY(LB[1].value)
  MarkY(LB[3].value)
  alert("'" + activeDocument.activeLayer.name + "' Layer Bounds\nTop Left " +  LB[0].value + "X," +  LB[1].value + "Y   Bottom Right "  +  LB[2].value + "X," +  LB[3].value
  + "Y\nWidth " +  LWidth + "px   Height " + LHeight +"px" 
  + "\nLayer center relative to canvas " + (LB[0].value + LWidth/2) + "X," +  (LB[1].value + LHeight/2) +"Y" 
  );
}
catch(e){alert("Requires a layer targered");}
// Return the app preferences
app.preferences.rulerUnits = startRulerUnits;
function MarkX(x) {
// =======================================================
var idMk = charIDToTypeID( "Mk  " );
    var desc61 = new ActionDescriptor();
    var idNw = charIDToTypeID( "Nw  " );
        var desc62 = new ActionDescriptor();
        var idPstn = charIDToTypeID( "Pstn" );
        var idPxl = charIDToTypeID( "#Pxl" );
        desc62.putUnitDouble( idPstn, idPxl, x);
        var idOrnt = charIDToTypeID( "Ornt" );
        var idOrnt = charIDToTypeID( "Ornt" );
        var idVrtc = charIDToTypeID( "Vrtc" );
        desc62.putEnumerated( idOrnt, idOrnt, idVrtc );
    var idGd = charIDToTypeID( "Gd  " );
    desc61.putObject( idNw, idGd, desc62 );
executeAction( idMk, desc61, DialogModes.NO );
}
function MarkY(y) {
// =======================================================
var idMk = charIDToTypeID( "Mk  " );
    var desc63 = new ActionDescriptor();
    var idNw = charIDToTypeID( "Nw  " );
        var desc64 = new ActionDescriptor();
        var idPstn = charIDToTypeID( "Pstn" );
        var idPxl = charIDToTypeID( "#Pxl" );
        desc64.putUnitDouble( idPstn, idPxl, y );
        var idOrnt = charIDToTypeID( "Ornt" );
        var idOrnt = charIDToTypeID( "Ornt" );
        var idHrzn = charIDToTypeID( "Hrzn" );
        desc64.putEnumerated( idOrnt, idOrnt, idHrzn );
    var idGd = charIDToTypeID( "Gd  " );
    desc63.putObject( idNw, idGd, desc64 );
executeAction( idMk, desc63, DialogModes.NO );
}