Создание прямоугольных импульсов разной длительности -> Форум на Исходниках.RU [Powered by Invision Power Board]

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#define WIN32_LEAN_AND_MEAN

#include <windows.h>

#include <windowsx.h>

#include <commctrl.h>

#include <tchar.h>

#include <mmsystem.h>

#include <stdio.h>

#include "main.h"

#pragma comment(lib, "winmm.lib")

#define UNICODE

#define NELEMS(a) (sizeof(a) / sizeof((a)[0]))

#define nRate 44100

#define nBits 8

#define nBytesPerSample nBits / 8

#define nBytes 10000 //

/** Prototypes **************************************************************/

static INT_PTR CALLBACK MainDlgProc(HWND, UINT, WPARAM, LPARAM);

/** Global variables ********************************************************/

static HANDLE ghInstance;

HWAVEOUT hWaveOut;

WAVEFORMATEX wfx; // для получения описателя звукового устройства:

WAVEHDR whdr1;

WAVEHDR whdr2;

static UCHAR Buffer1[nBytes];

static UCHAR Buffer2[nBytes];

UCHAR numBuff ;

/****************************************************************************

* *

* Function: WinMain *

* *

* Purpose : Initialize the application. Register a window class, *

* create and display the main window and enter the *

* message loop. *

* *

* History : Date Reason *

* 00/00/00 Created *

* *

****************************************************************************/

int PASCAL WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmdLine, int nCmdShow)

{

INITCOMMONCONTROLSEX icc;

WNDCLASSEX wcx;

ghInstance = hInstance;

icc.dwSize = sizeof(icc);

icc.dwICC = ICC_WIN95_CLASSES /*|ICC_COOL_CLASSES|ICC_DATE_CLASSES|ICC_PAGESCROLLER_CLASS|ICC_USEREX_CLASSES|... */;

InitCommonControlsEx(&icc);

wcx.cbSize = sizeof(wcx);

if (!GetClassInfoEx(NULL, MAKEINTRESOURCE(32770), &wcx))

return 0;

wcx.hInstance = hInstance;

wcx.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDR_ICO_MAIN));

wcx.lpszClassName = _T("ppmClass");

if (!RegisterClassEx(&wcx))

return 0;

/* The user interface is a modal dialog box */

return DialogBox(hInstance, MAKEINTRESOURCE(DLG_MAIN), NULL, (DLGPROC)MainDlgProc);

}

/****************************************************************************

* *

* Function: MainDlgProc *

* *

* Purpose : Process messages for the Main dialog. *

* *

* History : Date Reason *

* 00/00/00 Created *

* *

****************************************************************************/

static INT_PTR CALLBACK MainDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)

{

switch (uMsg)

{

case WM_INITDIALOG:

* TODO: Add code to initialize the dialog.

for (UINT i = 0; i < nBytes; i++)

{

if((i/100)%2)

Buffer1[i] = 255;

else

Buffer1[i] = 0;

}

for (UINT i = 0; i < nBytes; i++)

{

if((i/10)%2)

Buffer2[i] = 255;

else

Buffer2[i] = 0;

}

wfx.wFormatTag = WAVE_FORMAT_PCM; // wav-формат

wfx.nChannels = 1; // моно - звук

wfx.nSamplesPerSec = nRate; // 44100 Гц

wfx.nAvgBytesPerSec = nBytesPerSample * nRate; // байт в секунду

wfx.nBlockAlign = nBytesPerSample;

wfx.wBitsPerSample = nBits;

wfx.cbSize = 0; // For only WAVE_FORMAT_PCM formats, this member is ignored

numBuff=0;

return TRUE;

case WM_SIZE:

* TODO: Add code to process resizing, when needed.

return TRUE;

case MM_WOM_DONE:

if (numBuff==0)

{

waveOutWrite(hWaveOut, &whdr1, sizeof(whdr1));

numBuff=1;

}

else

{

numBuff=0;

waveOutWrite(hWaveOut, &whdr2, sizeof(whdr2));

}

return TRUE;

case WM_COMMAND:

switch (GET_WM_COMMAND_ID(wParam, lParam))

{

* TODO: Add more control ID's, when needed.

case IDSTART:

waveOutOpen(&hWaveOut, WAVE_MAPPER, &wfx, (UINT)hwndDlg, 0L, CALLBACK_WINDOW);

whdr1.lpData = (LPSTR)Buffer1;

whdr1.dwBufferLength = nBytes; // размер буфера в байтах.

whdr1.dwFlags = 0; // Буфер подготовлен (зафиксирован в памяти)

whdr1.dwLoops = 0; // без циклов, поле должно быть нулевым.

whdr2.lpData = (LPSTR)Buffer2;

whdr2.dwBufferLength = nBytes; // размер буфера в байтах.

whdr2.dwFlags = 0; // Буфер подготовлен (зафиксирован в памяти)

whdr2.dwLoops = 0; // без циклов, поле должно быть нулевым.

waveOutPrepareHeader(hWaveOut, &whdr1, sizeof(WAVEHDR));

waveOutPrepareHeader(hWaveOut, &whdr2, sizeof(WAVEHDR));

waveOutWrite(hWaveOut, &whdr1, sizeof(whdr1));

return TRUE;

case IDOK:

EndDialog(hwndDlg, TRUE);

waveOutUnprepareHeader (hWaveOut, &whdr1, sizeof(WAVEHDR));

waveOutUnprepareHeader (hWaveOut, &whdr2, sizeof(WAVEHDR));

waveOutReset (hWaveOut);

waveOutClose (hWaveOut);

return TRUE;

}

break;

case WM_CLOSE:

EndDialog(hwndDlg, 0);

return TRUE;

* TODO: Add more messages, when needed.

}

return FALSE;

}