changing name of a CheckBox by 2 time left clicking

[Alex22]

Hi

thre is a Check Box (object of QChecjBox). I want to change it's name and set my desired name by typing.
for example i have this:

QCheckBox ch;
ch.setText("hi");
ch.show();

QCheckBox ch;
ch.setText("hi");
ch.show();

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now i need when "ch" is showing, change it's name by clicking 2 times on it. I think I must create SIGNAL and SLOT for this.
Thanks for any help