sizeit.cpp

《Windows CE 权威指南》（作者：(美)CHRIS MUENCH

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

#include "stdafx.h"
#include "SizeIt.h"
#include <commctrl.h>

// <BOOK_ADDON Chapter 11.1.3> ************************
#include <aygshell.h>
typedef BOOL (*SHCREATEMENUBARPROC)(SHMENUBARINFO *pmbi);
typedef BOOL (*SHINIDIALOGPROC)(PSHINITDLGINFO pshidi);
typedef BOOL (*SHSIPINFOPROC)(UINT uiAction, UINT uiParam, PVOID pvParam, UINT fWinIni);
	SHSIPINFOPROC	  g_hSHSipInfo	   = NULL;
	SHINIDIALOGPROC	  g_hSHInitDialog	   = NULL;
	SHCREATEMENUBARPROC g_hSHCreateMenuBar = NULL;
	HINSTANCE	hAygDll;
	BOOL	isRapier=FALSE;
	int	MENU_HEIGHT;
// </BOOK_ADDON Chapter 11.1.3> ************************


#define MAX_LOADSTRING 100

// Global Variables:
HINSTANCE			hInst;			// The current instance
HWND				hwndCB;			// The command bar handle

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

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

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

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

	// 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, LPTSTR szWindowClass)
{
	WNDCLASS	wc;

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

	return RegisterClass(&wc);
}

//
//  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;
	TCHAR	szTitle[MAX_LOADSTRING];			// The title bar text
	TCHAR	szWindowClass[MAX_LOADSTRING];		// The window class name

	hInst = hInstance;		// Store instance handle in our global variable
	// Initialize global strings
	LoadString(hInstance, IDC_SIZEIT, szWindowClass, MAX_LOADSTRING);
	MyRegisterClass(hInstance, szWindowClass);

	LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);

// <BOOK_ADDON Chapter 11.1.3> ************************
	int iDelta, x = CW_USEDEFAULT, y = CW_USEDEFAULT, 
			    cx= CW_USEDEFAULT, cy= CW_USEDEFAULT;

	hAygDll = LoadLibrary(TEXT("aygshell.dll"));
	if (hAygDll)
	{
		g_hSHInitDialog =(SHINIDIALOGPROC)GetProcAddress(hAygDll,
						 TEXT("SHInitDialog"));
		if (g_hSHInitDialog) isRapier=TRUE;

		SIPINFO si = {0};
		si.cbSize = sizeof(si);
		g_hSHSipInfo =(SHSIPINFOPROC)GetProcAddress(hAygDll,
					  TEXT("SHSipInfo"));
		(*g_hSHSipInfo)(SPI_GETSIPINFO, 0, &si, 0);
		MENU_HEIGHT = (isRapier) ? 26 : 0;
		iDelta = (si.fdwFlags & SIPF_ON) ? 0 : MENU_HEIGHT;

		cx = si.rcVisibleDesktop.right - si.rcVisibleDesktop.left;
		cy = si.rcVisibleDesktop.bottom - si.rcVisibleDesktop.top - iDelta;
	}
	hWnd = CreateWindow(szWindowClass, szTitle, WS_VISIBLE,
		x, y, cx, cy, NULL, NULL, hInstance, NULL);
// </BOOK_ADDON Chapter 11.1.3> ************************

	if (!hWnd)
	{	
		return FALSE;
	}

	ShowWindow(hWnd, nCmdShow);
	UpdateWindow(hWnd);
	if (!isRapier)	// <BOOK_ADDON Chapter 11.1.3/> ************************
		if (hwndCB)
			CommandBar_Show(hwndCB, TRUE);

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

	switch (message) 
	{
		case WM_COMMAND:
			wmId    = LOWORD(wParam); 
			wmEvent = HIWORD(wParam); 
			// Parse the menu selections:
			switch (wmId)
			{
				case IDM_HELP_ABOUT:
				   DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
				   break;
				case IDM_FILE_EXIT:
				   DestroyWindow(hWnd);
				   break;
				default:
				   return DefWindowProc(hWnd, message, wParam, lParam);
			}
			break;
		case WM_CREATE:
// <BOOK_ADDON Chapter 11.1.3> ************************
	if (isRapier)
	{
	    SHMENUBARINFO mbi;
	    memset(&mbi, 0, sizeof(SHMENUBARINFO));
          mbi.cbSize     = sizeof(SHMENUBARINFO);
          mbi.hwndParent = hWnd;
          mbi.nToolBarId = IDR_MAIN_MENU;
          mbi.hInstRes   = hInst;
          mbi.nBmpId     = 0;
          mbi.cBmpImages = 0;	
          
  	    g_hSHCreateMenuBar =(SHCREATEMENUBARPROC)
GetProcAddress(hAygDll, TEXT("SHCreateMenuBar"));
          (*g_hSHCreateMenuBar)(&mbi);
          hwndCB = mbi.hwndMB;
	}         
	else
	{
// </BOOK_ADDON Chapter 11.1.3> ************************
 
			hwndCB = CommandBar_Create(hInst, hWnd, 1);			
			CommandBar_InsertMenubar(hwndCB, hInst, IDM_MENU, 0);
			CommandBar_AddAdornments(hwndCB, 0, 0);
	}
			break;
		case WM_PAINT:
			RECT rt;
			hdc = BeginPaint(hWnd, &ps);
			GetClientRect(hWnd, &rt);
			LoadString(hInst, IDS_HELLO, szHello, MAX_LOADSTRING);
			DrawText(hdc, szHello, _tcslen(szHello), &rt, 
				DT_SINGLELINE | DT_VCENTER | DT_CENTER);
			EndPaint(hWnd, &ps);
			break;
		case WM_DESTROY:
			CommandBar_Destroy(hwndCB);
			PostQuitMessage(0);
			break;
		default:
			return DefWindowProc(hWnd, message, wParam, lParam);
   }
   return 0;
}

// Mesage handler for the About box.
LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
	RECT rt, rt1;
	int DlgWidth, DlgHeight;	// dialog width and height in pixel units
	int NewPosX, NewPosY;

	switch (message)
	{
		case WM_INITDIALOG:
// <BOOK_ADDON Chapter 11.1.3> ************************
			if (isRapier)
			{
				SHINITDLGINFO shidi;
				shidi.dwMask = SHIDIM_FLAGS;
				shidi.dwFlags = SHIDIF_DONEBUTTON | 
								SHIDIF_SIPDOWN |
								SHIDIF_SIZEDLGFULLSCREEN;
				shidi.hDlg = hDlg;
				(*g_hSHInitDialog)(&shidi);
			}
			else
			{
// </BOOK_ADDON Chapter 11.1.3> ************************
			// trying to center the About dialog
				if (GetWindowRect(hDlg, &rt1)) {
					GetClientRect(GetParent(hDlg), &rt);
					DlgWidth	= rt1.right - rt1.left;
					DlgHeight	= rt1.bottom - rt1.top ;
					NewPosX		= (rt.right - rt.left - DlgWidth)/2;
					NewPosY		= (rt.bottom - rt.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 TRUE;

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