Beep

Beep

I'm making a windows form(c++/cli) and I need when user press start button its beep on a frquency and stop with a pause button so used a timer but dont ended right some suggestion?

Hello @KissU

Making a Hardware Beep would have a Good Effect, if you Use this Method

Code:

BOOL WINAPI Beep(
  _In_  DWORD dwFreq,
  _In_  DWORD dwDuration
);

So to use this Function, You'll need to use them Parameters.

Code:

Beep(200,450); //Will Produce a Hardware Beep with the Frequency of 200, and a Duration of 450ms

I'd also Suggest to Read up on the Basic's, it Really does Help alot.

Cheers
kJNR

I know the basics, but I need a function to beep async if I do Beep(100,10000); the world can explode and its only stops if app is killed or time is over.I need Beep until user press pause, so i tried a thread and doesn't worked.

Write a Simple Function, and play a Beep?
Thats Less than Basic Knowledge i'm Afraid.

:/ - Sorry, but i Dont really Spoonfeed, Dont it in the Past - therefor People learn't Nothing.
:/

Cheers,
kJNR

Originally Posted by KissU

Make a new thread and within it use a simple loop that keeps going untill the user pressed something. The beep duration can be 30ms as this is the average time the user press a key.

do something like that:

Code:

DWORD WINAPI beep(LPVOID)
{
    for(;;)
        Beep(100, 50);
}

INT WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR lpCmd, INT nShow)
{
    HANDLE hThread = CreateThread(NULL, 0, beep, NULL, 0, NULL);
    while (!GetAsyncKeyState(VK_F5)) Sleep(50);
    TerminateThread(hThread, 0);
    CloseHandle(hThread);
    return 0;
}

I give up can close thread.

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