How to create my own QPixmap Or QImage

[sagirahmed]

Hi,

I want create my own QPixmap or QImage using my own data. so that I able to set this QPixmap to QLabel instead of drawing the same content again and again in paintEvent()

Thanks & Regards

[nish]

QPixmap pix;
QPainter p(&pix);
p.drawXYZ();
 
lablel->setPixmap(pix);

QPixmap pix;
QPainter p(&pix);
p.drawXYZ();

lablel->setPixmap(pix);

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[aamer4yu]

QPixmap pix;
QPainter p(&pix);
p.drawXYZ();
 
lablel->setPixmap(pix);

QPixmap pix;
QPainter p(&pix);
p.drawXYZ();

lablel->setPixmap(pix);

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One mistake.. always specify a size for the pixmap / image while creating it.
Something like - QPixmap pix(600,480);
You cannot paint on null pixmap !!

[nish]

One mistake..

That was not a mistake. That was left as an exercise for the reader.

always specify a size for the pixmap / image while creating it.
Something like - QPixmap pix(600,480);
You cannot paint on null pixmap !!

You PASSED!!