Simple cross-platform Qt popup messagebox based on Evileg PopUp notification, link: https://evileg.com/en/post/146/

What has been developed:

• added multiple animated messages with expire timer
• added a separate thread event loop for messages

Demostration video
The example application demonstrates popup messages

Simple use:

#include "PopMsgBox.h"
/*
 * some code
 */
 
/*
 * place where need to show message
 */
pmb::PopMsgBox::instance().enqueueMessage("some title", "some message", QColor(0, 0, 0, 180));

Qt5 needs to be installed

Windows

mkdir build
cd build
cmake ..
cmake --build .

Linux

mkdir build
cd build
cmake ..
make

You can use it on Windows and Linux