QPainter *painter vs. QPainter painter

[gebbissimo]

Hi again,

probably a really simple question, but I have searched the web for quite a while now, without resolving it:

void Field::paintEvent(QPaintEvent *)
{
    QPainter *painter;
    (*painter).begin(this);
}

void Field::paintEvent(QPaintEvent *)
{
    QPainter *painter;
    (*painter).begin(this);
}

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This doesn't work (I get no compile error, just a warning message "uninitialized local variable 'painter' used". When I run it however, the error message pops up: "read access violiation...". ) However, if I remove the asterix it works. Looking forward to an answer...