tinymce.full.js
function queryCommandState(command) {
        var func;

        // Is hidden then return undefined
        if (editor.quirks.isHidden()) {
          return;
        }

        command = command.toLowerCase();
        if ((func = commands.state[command])) {
          return func(command);
        }

        // Browser commands
        try {
          return editor.getDoc().queryCommandState(command);
        } catch (ex) {
          // Fails sometimes see bug: 1896577
        }

        return false;
      }
function queryCommandState(command) {
        var func;

        // Is hidden then return undefined
        if (editor.quirks.isHidden()) {
          return;
        }

        command = command.toLowerCase();
        if ((func = commands.state[command])) {
          return func(command);
        }

        // Browser commands
        try {
          return editor.getDoc().queryCommandState(command);
        } catch (ex) {
          // Fails sometimes see bug: 1896577
        }

        return false;
      }
function queryCommandState ( command ) { var func ; // Is hidden then return undefined if ( editor . quirks . isHidden ( ) ) { return ; } command = command . toLowerCase ( ) ; if ( ( func = commands . state [ command ] ) ) { return func ( command ) ; } // Browser commands try { return editor . getDoc ( ) . queryCommandState ( command ) ; } catch ( ex ) { // Fails sometimes see bug: 1896577 } return false ; }
Queries the current state for a command for example if the current selection is "bold".

@method queryCommandState
@param {String} command Command to check the state of.
@return {Boolean/Number} true/false if the selected contents is bold or not, -1 if it's not found.
Queries the current state for a command for example if the current selection is bold .