winmain.cpp

这个程序主要是在WinCE环境下开发访问SQLCE数据库程序的例子程序

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

#include "stdafx.h"
#include "WinMain.h"
#include <windows.h>
#include <commctrl.h>
#include "ALTCOMM.h"

#define MAX_LOADSTRING 100
#define MaxWordLength 32

typedef struct {
	HWND hDlg;
} DlgParams, *pDlgParam;

// Global Variables:
HINSTANCE			g_hInst;			// current instance
HWND				g_hWndCommandBar;	// command bar handle

// Forward declarations of functions included in this code module:
ATOM			MyRegisterClass(HINSTANCE, LPTSTR);
BOOL			InitInstance(HINSTANCE, int);
LRESULT CALLBACK	WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK	About(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK	DictDailog(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK	MutiDailog(HWND, UINT, WPARAM, LPARAM);
INT_PTR GetDictQuery(LPVOID);
DWORD WINAPI ServPorc(LPVOID lpv);

const IID IID_IDictionary={0x47FF4B66,0x3C27,0x4CB1,{0x8D,0xE0,0x80,0xA1,0x27,0xBF,0x63,0x22}};
const CLSID CLSID_Dictionary = {0xDC4BF39F,0x1D68,0x4584,{0x9D,0x52,0x76,0xD8,0x86,0xA2,0x6B,0x46}};

int WINAPI WinMain(HINSTANCE hInstance,
                   HINSTANCE hPrevInstance,
                   LPTSTR    lpCmdLine,
                   int       nCmdShow)
{
	MSG msg;

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

	HACCEL hAccelTable;
	hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_WINMAIN));

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

	return (int) msg.wParam;
}

//
//  FUNCTION: MyRegisterClass()
//
//  PURPOSE: Registers the window class.
//
//  COMMENTS:
//
ATOM MyRegisterClass(HINSTANCE hInstance, LPTSTR szWindowClass)
{
	WNDCLASS wc;

	wc.style         = CS_HREDRAW | CS_VREDRAW;
	wc.lpfnWndProc   = WndProc;
	wc.cbClsExtra    = 0;
	wc.cbWndExtra    = 0;
	wc.hInstance     = hInstance;
	wc.hIcon         = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_WINMAIN));
	wc.hCursor       = 0;
	wc.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
	wc.lpszMenuName  = 0;
	wc.lpszClassName = szWindowClass;

	return RegisterClass(&wc);
}

//
//   FUNCTION: InitInstance(HINSTANCE, 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;
    TCHAR szTitle[MAX_LOADSTRING];		// title bar text
    TCHAR szWindowClass[MAX_LOADSTRING];	// main window class name

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


    LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING); 
    LoadString(hInstance, IDC_WINMAIN, szWindowClass, MAX_LOADSTRING);


    if (!MyRegisterClass(hInstance, szWindowClass))
    {
    	return FALSE;
    }

    hWnd = CreateWindow(szWindowClass, szTitle, WS_VISIBLE,
        CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);

    if (!hWnd)
    {
        return FALSE;
    }


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

    if (g_hWndCommandBar)
    {
        CommandBar_Show(g_hWndCommandBar, TRUE);
    }

    return TRUE;
}

//
//  FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
//  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
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    int wmId, wmEvent;
    PAINTSTRUCT ps;
    HDC hdc;

    switch (message) 
    {
        case WM_COMMAND:
            wmId    = LOWORD(wParam); 
            wmEvent = HIWORD(wParam); 
            // Parse the menu selections:
            switch (wmId)
            {
                case IDM_HELP_ABOUT:
                    DialogBox(g_hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, About);
                    break;
                case ID_FDICT:
                    DialogBox(g_hInst, (LPCTSTR)IDD_DDict, hWnd, DictDailog);
                    break;
				case ID_FILE_MUTITHREAD:
                    DialogBox(g_hInst, (LPCTSTR)IDD_DMult, hWnd, MutiDailog);
                    break;
                case IDM_FILE_EXIT:
                    DestroyWindow(hWnd);
                    break;
                default:
                    return DefWindowProc(hWnd, message, wParam, lParam);
            }
            break;
        case WM_CREATE:
            g_hWndCommandBar = CommandBar_Create(g_hInst, hWnd, 1);
            CommandBar_InsertMenubar(g_hWndCommandBar, g_hInst, IDR_MENU, 0);
            CommandBar_AddAdornments(g_hWndCommandBar, 0, 0);
            break;
        case WM_PAINT:
            hdc = BeginPaint(hWnd, &ps);
            
            // TODO: Add any drawing code here...
            
            EndPaint(hWnd, &ps);
            break;
        case WM_DESTROY:
            CommandBar_Destroy(g_hWndCommandBar);
            PostQuitMessage(0);
            break;


        default:
            return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}

// Message handler for about box.
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
        case WM_INITDIALOG:
            RECT rectChild, rectParent;
            int DlgWidth, DlgHeight;	// dialog width and height in pixel units
            int NewPosX, NewPosY;

            // trying to center the About dialog
            if (GetWindowRect(hDlg, &rectChild)) 
            {
                GetClientRect(GetParent(hDlg), &rectParent);
                DlgWidth	= rectChild.right - rectChild.left;
                DlgHeight	= rectChild.bottom - rectChild.top ;
                NewPosX		= (rectParent.right - rectParent.left - DlgWidth) / 2;
                NewPosY		= (rectParent.bottom - rectParent.top - DlgHeight) / 2;
				
                // if the About box is larger than the physical screen 
                if (NewPosX < 0) NewPosX = 0;
                if (NewPosY < 0) NewPosY = 0;
                SetWindowPos(hDlg, 0, NewPosX, NewPosY,
                    0, 0, SWP_NOZORDER | SWP_NOSIZE);
            }

            return (INT_PTR)TRUE;

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

        case WM_CLOSE:
            EndDialog(hDlg, message);
            return TRUE;

    }
    return (INT_PTR)FALSE;
}

// Message handler for about box.
INT_PTR CALLBACK DictDailog(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
	TCHAR tSourceLang[MaxWordLength + 2];
	TCHAR tDestLang[MaxWordLength + 2];
	BSTR  bstrSource, bstrDest, bstrFileName;
	HRESULT hr;
	static IDictionary *pDictionary;

    switch (message)
    {
        case WM_INITDIALOG:
            RECT rectChild, rectParent;
            int DlgWidth, DlgHeight;	// dialog width and height in pixel units
            int NewPosX, NewPosY;
			long lret;

            // trying to center the About dialog
            if (GetWindowRect(hDlg, &rectChild)) 
            {
                GetClientRect(GetParent(hDlg), &rectParent);
                DlgWidth	= rectChild.right - rectChild.left;
                DlgHeight	= rectChild.bottom - rectChild.top ;
                NewPosX		= (rectParent.right - rectParent.left - DlgWidth) / 2;
                NewPosY		= (rectParent.bottom - rectParent.top - DlgHeight) / 2;
				
                // if the About box is larger than the physical screen 
                if (NewPosX < 0) NewPosX = 0;
                if (NewPosY < 0) NewPosY = 0;
                SetWindowPos(hDlg, 0, NewPosX, NewPosY,
                    0, 0, SWP_NOZORDER | SWP_NOSIZE);
            }
	
			//在主线程中，对COM库进行初始化
			if (CoInitializeEx(NULL, COINIT_APARTMENTTHREADED) != S_OK) {
				printf("Initialize COM library failed!\n");
				CoUninitialize();
				return -1;
			}

			//if (GetDictQuery((void *)pDictionary) < 0)
			if (FAILED(hr = CoCreateInstance(CLSID_Dictionary, NULL, 
				CLSCTX_INPROC_SERVER, IID_IDictionary, (void **)(&pDictionary))))
			{
				EnableWindow(GetDlgItem( hDlg, IDOK ), false );
				EnableWindow(GetDlgItem( hDlg, IDC_Modify ), false );
				EnableWindow(GetDlgItem( hDlg, IDC_Delete ), false );
				EnableWindow(GetDlgItem( hDlg, IDC_Query ), false );
				return (INT_PTR)FALSE;
			}
			bstrFileName = SysAllocString(L"DictLib.txt");
			if (SUCCEEDED(pDictionary->InitialDict(bstrFileName)))
			{
				MessageBox(hDlg, _T("DictLib open succeeded\n"), _T("Information"), MB_OK);
			}