surprise why this simple statement doesnt work

[salmanmanekia]

Hi,
I want to disable my button on the click of it ...so i wrote this but it doesnt seem to work...

connect(navigate->recordButton,SIGNAL(clicked()),this,SLOT(setDisabled(TRUE)));

connect(navigate->recordButton,SIGNAL(clicked()),this,SLOT(setDisabled(TRUE)));

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i am surprised ..why ?