The Machine Perception Toolbox

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MPFaceDetectorApp.cpp

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// MPFaceDetectorApp.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include "resource.h"
#include <atlbase.h>
#include <streams.h>
#include <initguid.h>
#include "DirectShow/MPDirectShow.h"
#include <cstdio>

#define MAX_LOADSTRING 100

// Global Variables:
HINSTANCE hInst;                                                                // current instance
TCHAR szTitle[MAX_LOADSTRING];                                                          // The title bar text
TCHAR szWindowClass[MAX_LOADSTRING];                                                            // The title bar text

// Foward declarations of functions included in this code module:
ATOM                            MyRegisterClass(HINSTANCE hInstance);
BOOL                            InitInstance(HINSTANCE, int);
LRESULT CALLBACK        WndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK        About(HWND, UINT, WPARAM, LPARAM);

//
//HWND WINAPI CreateTrackbar(
//       HWND hwndDlg,
//       UINT iMin,
//       UINT iMax,
//       UINT iSelMin,
//       UINT iSelMAx,
//       UINT iXPosition,
//       UINT iYPosition,
//       UINT iLength);

//LRESULT CALLBACK DlgProc(HWND hGlg, UINT message, WPARAM wParam, LPARAM lParam);
#define WM_GRAPHNOTIFY   WM_APP + 1

MPDirectShow m_directShow;

//return from callback 'cause graph is stopping
BYTE bReturnImmediatelyFromCallback = 0;


// ================================================================

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
        // TODO: Place code here.
        MSG msg;
        HACCEL hAccelTable;

        // Initialize global strings
        LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
        LoadString(hInstance, IDC_MPFACEDETECTORAPP, szWindowClass, MAX_LOADSTRING);
        MyRegisterClass(hInstance);

        // Perform application initialization:
        if (!InitInstance (hInstance, nCmdShow))
        {
                return FALSE;
        }

        hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_MPFACEDETECTORAPP);

        // Main message loop:
        while (GetMessage(&msg, NULL, 0, 0))
        {
                if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
                {
                        TranslateMessage(&msg);
                        DispatchMessage(&msg);
                }
        }

        return msg.wParam;
}

// ================================================================

//
//  FUNCTION: MyRegisterClass()
//
//  PURPOSE: Registers the window class.
//
//  COMMENTS:
//
//    This function and its usage is only necessary if you want this code
//    to be compatible with Win32 systems prior to the 'RegisterClassEx'
//    function that was added to Windows 95. It is important to call this function
//    so that the application will get 'well formed' small icons associated
//    with it.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
        WNDCLASSEX wcex;

        wcex.cbSize = sizeof(WNDCLASSEX);

        wcex.style                      = CS_HREDRAW | CS_VREDRAW;
        wcex.lpfnWndProc        = (WNDPROC)WndProc;
        wcex.cbClsExtra         = 0;
        wcex.cbWndExtra         = 0;
        wcex.hInstance          = hInstance;
        wcex.hIcon                      = LoadIcon(hInstance, (LPCTSTR)IDI_MPFACEDETECTORAPP);
        wcex.hCursor            = LoadCursor(NULL, IDC_ARROW);
        wcex.hbrBackground      = (HBRUSH)(COLOR_WINDOW+1);
        wcex.lpszMenuName       = (LPCSTR)IDC_MPFACEDETECTORAPP;
        wcex.lpszClassName      = szWindowClass;
        wcex.hIconSm            = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);

        return RegisterClassEx(&wcex);
}

// ================================================================

//
//   FUNCTION: InitInstance(HANDLE, int)
//
//   PURPOSE: Saves instance handle and creates main window
//
//   COMMENTS:
//
//        In this function, we save the instance handle in a global variable and
//        create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
   HWND hWnd;

   hInst = hInstance; // Store instance handle in our global variable

   hWnd = CreateWindow(szWindowClass, szTitle, WS_DLGFRAME|WS_SYSMENU|WS_MINIMIZEBOX,
      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);

   if (!hWnd)
   {
      return FALSE;
   }
#ifdef USE_ADA
         m_directShow.SetProject(ds_mpisearchAda);
#else
         m_directShow.SetProject(ds_mpisearch);
#endif
         m_directShow.SetInput(320, 240);
         m_directShow.RunDirectShow(hWnd);
   SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_NORMAL-1);

   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);

   return TRUE;
}

// ================================================================

//
//  FUNCTION: WndProc(HWND, unsigned, WORD, LONG)
//
//  PURPOSE:  Processes messages for the main window.
//
//  WM_COMMAND  - process the application menu
//  WM_PAINT    - Paint the main window
//  WM_DESTROY  - post a quit message and return
//
//
void HandleEvent()
{

}

// ================================================================

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
        int wmId, wmEvent;
//      PAINTSTRUCT ps;
//      HDC hdc;
        TCHAR szHello[MAX_LOADSTRING];
        LoadString(hInst, IDS_HELLO, szHello, MAX_LOADSTRING);

        switch (message)
        {
                case WM_GRAPHNOTIFY:
                    HandleEvent();
                        break;
                case WM_COMMAND:
                        wmId    = LOWORD(wParam);
                        wmEvent = HIWORD(wParam);
                        // Parse the menu selections:
                        switch (wmId)
                        {
                                case IDM_ABOUT:
                                   DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
                                   break;
                                case IDM_EXIT:

                                   DestroyWindow(hWnd);
                                   break;
                                default:
                                   return DefWindowProc(hWnd, message, wParam, lParam);
                        }
                        break;


                case WM_PAINT:
//                      hdc = BeginPaint(hWnd, &ps);
//                      // TODO: Add any drawing code here...
//                      RECT rt;
//                      GetClientRect(hWnd, &rt);
//                      DrawText(hdc, szHello, strlen(szHello), &rt, DT_CENTER);
//                      EndPaint(hWnd, &ps);
                        break;
//              case WM_SIZE:
//              {
//                      int nWidth = LOWORD(lParam);  // width of client area
//                      int nHeight = HIWORD(lParam); // height of client area
//                      switch(wParam)
//                      {
//                      case SIZE_MINIMIZED:
//                              pWindow->put_Visible(OAFALSE);
//                              break;
//                      default:
//                              pWindow->put_Visible(OATRUE);
//                              break;
//                      }
//                      break;
//              }
                case WM_DESTROY:
                        PostQuitMessage(0);
                        break;
                default:
                        return DefWindowProc(hWnd, message, wParam, lParam);
   }
   return 0;
}

// ================================================================

// Mesage handler for about box.
LRESULT CALLBACK About(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
        switch (message)
        {
                case WM_INITDIALOG:
                                return TRUE;

                case WM_COMMAND:
                        if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
                        {
                                EndDialog(hWnd, LOWORD(wParam));
                                return TRUE;
                        }
                        break;
        }
    return FALSE;
}

// ================================================================

void Msg(TCHAR *szFormat, ...)
{
    TCHAR szBuffer[1024];  // Large buffer for very long filenames (like HTTP)

    // Format the input string

        va_list pArgs;
    va_start(pArgs, szFormat);
    _vstprintf(szBuffer, szFormat, pArgs);
    va_end(pArgs);

    // Display a message box with the formatted string
    MessageBox(NULL, szBuffer, TEXT("First Grab Sample"), MB_OK);
}

// ================================================================

---