how we can use qml as a class with some method and property in our app?

stackprogramer

hi, i want to use myclass.qml for defining "myclass" class,with some property and some method in qml;
myclass.qml

import quick 2.0
Window{id:myclass
property1=1;
property2=2;
...
function f1(){}
function f2(){}
function f3(){}
..........



}

in main.qml i want to detect myclass detect for example:
when i write these source:

myclass.f1();
myclass.property1();

i can execute and run in my main.qml file.
can any one help me?
thanks for reply.

stackprogramer

for more info, how main.qml can inheritance from myclass.qml?????????
i write in main.qml this type.

myclass{id:class1;}

but the methods and the propery is undefined in main.qml!!!!!
can any help me?
i.e. when in my main.qml i write

var x:class1.f1();

the result is :

f1 is not defined.

stackprogramer

i after examine the qml i concluded that we define objects in myclass.qml,and for calling in my main.qml we define type:

myclass{.....}

this type inherited functions and attributes from myclass.qml and we can use it only in our main.qml file
thanks for attention