set postion of child window to center of parent window

[gnosic]

How can i set postion of child window to center of parent window?

my child window :

 this.myWindow = new Ext.Window({

....
)};

[Animal]

What version? alignTo works in later versions.

[bslater]

Like animal said using alignTo, so maybe something like:

var me = this;

me.myWindow = new Ext.Window({

....
)};

me.myWindow.on('afterrender', function () {
    me.myWindow.alignTo(me.getEl(), "c-c");
});