[OpenLayers-Users] How to select on CTRL key + click

[Alexandre Dube]

I'm been scratching my head for a while on this : how can I add select a 
feature using this customized control on click + ctrl key down only ?  
I've tried to add a keyMask but the checkModifiers never seems to trigger.

I tried to set it to the Control, the Handler, no success.  I tried to 
remove the navigation control which seemed to be the only one to trigger 
checkModifiers but again no success.  I must be missing something 
obvious here.  Any hint ?

See code below ( borrowed this one from an wfs-t example )

/**
 * Class: DeleteFeature
 */
OpenLayers.Control.DeleteFeature = OpenLayers.Class(OpenLayers.Control, {
    keyMask:OpenLayers.Handler.MOD_CTRL, // tried there
    initialize: function(layer, options) {
        OpenLayers.Control.prototype.initialize.apply(this, [options]);
        this.layer = layer;
        this.handler = new OpenLayers.Handler.Feature(
            this, layer, {
              click: this.clickFeature,
              keyMask:OpenLayers.Handler.MOD_CTRL // tried there
            }
        );
    },
    clickFeature: function(feature) {
        // if feature doesn't have a fid, destroy it
        if(feature.fid == undefined) {
            removeRoadInfoPopup(oLastHoverFeature); // HARDCODED adube
            oLastHoverFeature = null; // HARDCODED adube
            this.layer.destroyFeatures([feature]);
        } else if (feature.state != OpenLayers.State.DELETE){
            feature.state = OpenLayers.State.DELETE;
            this.layer.events.triggerEvent("afterfeaturemodified",
                                           {feature: feature});
            feature.renderIntent = "select";
            this.layer.drawFeature(feature);
        } else {
            feature.state = null;
            feature.renderIntent = "default";
            this.layer.drawFeature(feature);
        }
    },
    setMap: function(map) {
        this.handler.setMap(map);
        OpenLayers.Control.prototype.setMap.apply(this, arguments);
    },
    CLASS_NAME: "OpenLayers.Control.DeleteFeature"
});

-- 
Alexandre Dubé
Mapgears
www.mapgears.com