Issue with QPixmap in Qt 3.2.1

[filmfreak]

Hi, I am trying to get an image to display on a button. The code belows does the job

void Form1::init() {
pushButton1->setPixmap(QPixmap::fromMimeSource("ulquarter4.jpg "));
.
.
.
}

However, I'd like to be able to use a pixmap variable instead. After declaring QPixmap *Pixmap 1 as a private member, I tried the following:

void Form1::init() {
*Pixmap1 = QPixmap::fromMimeSource("ulquarter4.jpg);
pushButton1->setPixmap(*Pixmap1);
.
.
.
}

It compiled without errors in the command prompt, but when I tried to execute it, I got a popup dialog box declaring that there was an error trying to open the executable.

Can anyone help me?

[jacek]

Did you initialize that Pixmap1 variable or did you left it as a dangling pointer?

[filmfreak]

Did you initialize that Pixmap1 variable or did you left it as a dangling pointer?

Is this line in the init() function not the same thing as initializing it?

*Pixmap1 = QPixmap::fromMimeSource("ulquarter4.jpg");

Please note that I am new to Qt Designer...I've been using it for only a few days now.

[jacek]

Is this line in the init() function not the same thing as initializing it?

*Pixmap1 = QPixmap::fromMimeSource("ulquarter4.jpg");

No, because you first dereference that pointer. You need something like this:

Pixmap1 = new QPixmap(); // initialize Pixmap1 and make it point to a null pixmap
*Pixmap1 = QPixmap::fromMimeSource("ulquarter4.jpg"); // fill that null pixmap with new data

Pixmap1 = new QPixmap(); // initialize Pixmap1 and make it point to a null pixmap
*Pixmap1 = QPixmap::fromMimeSource("ulquarter4.jpg"); // fill that null pixmap with new data

To copy to clipboard, switch view to plain text mode 

Although it will be much easier, if you just use QPixmap instead of QPixmap *.

Please note that I am new to Qt Designer...I've been using it for only a few days now.

It has nothing to do with Qt Designer or ever Qt itself --- it's C++ issue.

[filmfreak]

Thanks, I think that solved the problem.