Second Window properties

[felo188]

Hi.

I'm trying to set a second window (called pir1) size and fill a background. i don't have problem to set this in first window (MainWindow).
I created pir1.h, pir1.cpp and in MainWindow.cpp i have this (below code is in event filter):

...
PIRWindow = new pir1();
PIRWindow->show();
PIRWindow->raise();
PIRWindow->activateWindow();
...

...
PIRWindow = new pir1();
PIRWindow->show();
PIRWindow->raise();
PIRWindow->activateWindow();
...

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I tried use a code that works with MainWindow so I created in pir1.cpp paint event with draw pixmap but it's didn't works.

[tbscope]

but it's didn't works.

Please explain what it is that does not work in great details.
Otherwise a possible answer would be to adjust your Heisenberg Compensator to the correct compensation level.

[felo188]

In my ui i have some buttons. When the button is clicked shows new window pir1 so showing new window is working. In MainWindow I set pixmap on background. I want to set background in the new window pir1 too.
In MainWindow.cpp i have some code that is in eventFilter:

...
PIRButton->animateClick();
PIRWindow = new pir1();
PIRWindow->show();
PIRWindow->raise();
PIRWindow->activateWindow();
...

...
PIRButton->animateClick();
PIRWindow = new pir1();
PIRWindow->show();
PIRWindow->raise();
PIRWindow->activateWindow();
...

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In mainwindow.h:

...
private:
pir1 *PIRWindow;
...

...
private:
pir1 *PIRWindow;
...

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I created new file pir1.cpp, pir1.h and pir1.ui just following in qt File->New File or Project->QT Designer Form Class.
The background in MainWindow is set in paintEvent where is declared what and how should be displayed. And it's working as I wanted.
In the pir1.cpp i try to display background in the same way so I declared paintEvent in the same way as in mainwindow class but it's don't working (the background isn't change to my pixmap).
In pir1.cpp:

...
void pir1::paintEvent(QPaintEvent *ev)
{
    QPainter painter;
    background = new QPixmap("path to file");//path is correct
    QPixmap scaledPixMap = background->scaled(QSize(300,300));//I set window size in pir1.ui
    if(!background->isNull())
    {
        painter.drawPixmap(QPoint(0,0),scaledPixMap);
    }
}
...

...
void pir1::paintEvent(QPaintEvent *ev)
{
    QPainter painter;
    background = new QPixmap("path to file");//path is correct
    QPixmap scaledPixMap = background->scaled(QSize(300,300));//I set window size in pir1.ui
    if(!background->isNull())
    {
        painter.drawPixmap(QPoint(0,0),scaledPixMap);
    }
}
...

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In pir1.h:

...
private:
    QPixmap *background;
...

...
private:
    QPixmap *background;
...

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I don't know where I'm doing wrong.

[felo188]

Enybody can help me? I don't know why I can add some buttons on second window pir1 but i'm not able to draw anythink.

Edit:
I found a solution The simplest thinks are the best.

...
QPainter painter(this);
...

...
QPainter painter(this);
...

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