How to make beautiful loading?

Question

Qt

I want to make a loading image in my program. You know, that's when the .exe is just starting to load and a picture of the program appears with the progress of the download.
But how to do that?

Answer 1

This window is implemented in Qt using the QSplashScreen class
Create a QSplashScreen with a QPixmap for the background
Next, show this box AND set the text (this just shows the text, can be used between QSplashScreen::show(); and QSplashScreen::finish();

splashScreen.showMessage(
    /*const QString &message*/ "Сообщение",
    /*int alignment = Qt::AlignLeft*/ Положение текста,
    /*const QColor &color = Qt::black*/ Цвет QColor);

Text position - bitwise combination of vertical and horizontal alignment
Qt::Alignment
Horizontal alignment

Constant	Meaning	Description
Qt::AlignLeft	0x0001	Left alignment
Qt::AlignRight	0x0002	Right alignment
Qt::AlignHCenter	0x0004	Center alignment (horizontal)

Vertical alignment

Constant	Meaning	Description
Qt::AlignTop	0x0020	Top alignment
Qt::AlignBottom	0x0040	Bottom alignment
Qt::AlignVCenter	0x0080	Center alignment (vertical)

A little more flags (English)
You can use no more than one key from one group.
Example: Qt::AlighVCenter | Qt::AlignHCenter - absolute center of the window
To finish QSplashScreen, call the finish function:
This function will wait for the mainWin window to be displayed and only after that QSplashScreen closes.
These are the simplest functions. If you need "something more complicated", then we take and create our own SplashScreen and draw it ourselves (just like in QWidget)
I hope that my answer helped you.