QSound wont work, because "return a.exec();" will never be executed.

BD9a

Hello. I want to do Loop in main function what one time hide window, one time play sound and Looping random cursor position but if "return a.exec(); will never be executed" my QSound dont play sound.

#include <QCoreApplication>
#include <iostream>
#include <windows.h>
#include <QSound>
#include <cstdlib>

void noEscape(){
    INPUT input[2];
    ZeroMemory(input, sizeof(input));
    input[0].type = input[1].type = INPUT_KEYBOARD;
    input[0].ki.wVk = input[1].ki.wVk = VK_ESCAPE;
    input[1].ki.dwFlags = KEYEVENTF_KEYUP;
    SendInput(2, input, sizeof(INPUT));
}

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    int width = GetSystemMetrics(SM_CXSCREEN);
    int height = GetSystemMetrics(SM_CYSCREEN);

    HWND hWnd = GetConsoleWindow();
    ShowWindow( hWnd, SW_HIDE);

    QSound::play(":/Untitled.wav");

    while(true){

        SetCursorPos(rand () % (width + 1), rand () % (height +1));

        noEscape();

        if(GetAsyncKeyState(VK_HOME)){
            exit(0);
        }

    }

    return a.exec();
}

BD9a

Thanks, working. Used QTimer.

Christian Ehrlicher

QSound can also do it's job when the eventloop is reached which will never be the case due to your while(true) loop.

BD9a

So, where I have to place this QSound if It's endless loop?

Pl45m4

@bd9a

Why do you need to call noEscape() so frequently?

Check https://doc.qt.io/qt-5/qsound.html#isFinished and https://doc.qt.io/qt-5/qsound.html#setLoops

BD9a

I want to use QSound::play only once. I want this loop because it's "core" of this app. QSound dont work because "return a.exec(); will never be executed."...

Pl45m4

@bd9a

I would create a worker thread which will start doing its work after the QSoundwas played.
You can connect / start the noEscape-Worker in your main

BD9a

This post is deleted!

BD9a

Thanks, working. Used QTimer.

Pablo J. Rogina

@bd9a said in QSound wont work, because "return a.exec();" will never be executed.:

Thanks, working.

please don't forget to mark your post as solved! Thanks.