rilsample.cpp

windows mobile 6下查询ril层信号强度的例子程序

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

#include "stdafx.h"
#include "RILSample.h"
#include <windows.h>
#include <commctrl.h>
#include "ril.h"
#pragma comment(lib, "ril.lib")



#define MAX_LOADSTRING 100
#define WM_SQCHANGE		WM_USER + 150

// Global Variables:
HINSTANCE			g_hInst;			// current instance
HWND				g_hWndMenuBar;		// menu bar handle
HRIL				g_hRil;				// ril handle
RILRESULT			g_srr;				// ril result

// 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);
void CALLBACK RilResultProc(DWORD dwCode, HRESULT hrCmdID, const void* lpData, DWORD cbData, DWORD dwParam);
void CALLBACK RilNotifyProc(DWORD dwCode, const void* lpData, DWORD cbData, DWORD dwParam);


LPCTSTR UseString( UINT uID )
{
	//Return a pointer to a const resource string
	return (LPCTSTR)LoadString( g_hInst, uID, NULL, 0 );
}

DWORD GetSignalStrength(LPRILSIGNALQUALITY pRilSQ)
{
	if ((pRilSQ->dwParams & RIL_PARAM_SQ_SIGNALSTRENGTH) &&
		(pRilSQ->dwParams & RIL_PARAM_SQ_MAXSIGNALSTRENGTH) &&
		(pRilSQ->dwParams & RIL_PARAM_SQ_MINSIGNALSTRENGTH))
	{	
		return 100*(pRilSQ->nSignalStrength - pRilSQ->nMinSignalStrength) / (pRilSQ->nMaxSignalStrength - pRilSQ->nMinSignalStrength);
	}
	return 0;
}


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_RILSAMPLE));

	// 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_RILSAMPLE));
	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

    // SHInitExtraControls should be called once during your application's initialization to initialize any
    // of the device specific controls such as CAPEDIT and SIPPREF.
    SHInitExtraControls();

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

    //If it is already running, then focus on the window, and exit
    hWnd = FindWindow(szWindowClass, szTitle);	
    if (hWnd) 
    {
        // set focus to foremost child window
        // The "| 0x00000001" is used to bring any owned windows to the foreground and
        // activate them.
        SetForegroundWindow((HWND)((ULONG) hWnd | 0x00000001));
        return 0;
    } 

    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;
    }

    // When the main window is created using CW_USEDEFAULT the height of the menubar (if one
    // is created is not taken into account). So we resize the window after creating it
    // if a menubar is present
    if (g_hWndMenuBar)
    {
        RECT rc;
        RECT rcMenuBar;

        GetWindowRect(hWnd, &rc);
        GetWindowRect(g_hWndMenuBar, &rcMenuBar);
        rc.bottom -= (rcMenuBar.bottom - rcMenuBar.top);
		
        MoveWindow(hWnd, rc.left, rc.top, rc.right-rc.left, rc.bottom-rc.top, FALSE);
    }

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


    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)
{	
	static BOOL fRilOpen;
	static BOOL fProcessSQNotify;
    int wmId, wmEvent;
    PAINTSTRUCT ps;
    HDC hdc;
	DWORD dwWait;
	LPRILSIGNALQUALITY pRilSQ = NULL;
	TCHAR szResult[MAX_LOADSTRING];	
	static HWND	s_hButton1, s_hButton2;
	static HWND	s_hWndStaticText;
    static SHACTIVATEINFO s_sai;
	
    switch (message) 
    {
        case WM_COMMAND:
            wmId    = LOWORD(wParam); 
            wmEvent = HIWORD(wParam); 
            // Parse the menu selections:
            switch (wmId)
            {
				case IDB_BUTTON1:
					fProcessSQNotify = FALSE;

					// 获取当前信号强度
					g_srr.hrID = RIL_GetSignalQuality(g_hRil);
					// 等待结果
					dwWait = WaitForSingleObject(g_srr.hEvent, 5000);

					if (dwWait == WAIT_TIMEOUT)
					{
						// RIL函数返回超时
						DEBUGMSG(1, (TEXT("Timed out while waiting on RIL call!\r\n")));
						SetWindowText(s_hWndStaticText, UseString(IDS_RIL_TIMEOUT));
					}

					if (ISRESULTANDDATAOK())
					{
						pRilSQ = (RILSIGNALQUALITY *)g_srr.pData;
						
						wsprintf(szResult, UseString(IDS_SIGNALQUALITY_RESULT), GetSignalStrength(pRilSQ));
						SetWindowText(s_hWndStaticText, szResult);
					}
					else
					{
						SetWindowText(s_hWndStaticText, UseString(IDS_RIL_RETURNERROR));
					}

					break;
				case IDB_BUTTON2:
					fProcessSQNotify = TRUE;
					break;
                case IDM_HELP_ABOUT:
                    DialogBox(g_hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, About);
                    break;
                case IDM_OK:
                    SendMessage (hWnd, WM_CLOSE, 0, 0);				
                    break;
                default:
                    return DefWindowProc(hWnd, message, wParam, lParam);
            }
            break;
		case WM_SQCHANGE:
			if (fProcessSQNotify)
			{
				pRilSQ = (RILSIGNALQUALITY *)lParam;			
				wsprintf(szResult, UseString(IDS_SIGNALQUALITY_RESULT), GetSignalStrength(pRilSQ));
				SetWindowText(s_hWndStaticText, szResult);				
			}
			break;
        case WM_CREATE:
            SHMENUBARINFO mbi;

            memset(&mbi, 0, sizeof(SHMENUBARINFO));
            mbi.cbSize     = sizeof(SHMENUBARINFO);
            mbi.hwndParent = hWnd;
            mbi.nToolBarId = IDR_MENU;
            mbi.hInstRes   = g_hInst;

            if (!SHCreateMenuBar(&mbi)) 
            {
                g_hWndMenuBar = NULL;
            }
            else
            {
                g_hWndMenuBar = mbi.hwndMB;
            }

			// 注册一个RIL Proxy, 注册成功后，可以调用RIL函数，可以接收指定类型的通知消息
			g_srr.hrID = RIL_Initialize(1, RilResultProc, RilNotifyProc, RIL_NCLASS_MISC, (DWORD)hWnd, &g_hRil);
			if (FAILED(g_srr.hrID))
			{
				// 注册RIL Proxy失败，无法操作RIL
				DEBUGMSG(TRUE, (TEXT("Can't initialize RIL. hr = 0x%8x\r\n"), g_srr.hrID));	
				MessageBox(hWnd, UseString(IDS_RILINIT_FAILED), UseString(IDS_TIPS), MB_OK | MB_ICONINFORMATION);
			}
			else
			{
				fRilOpen = TRUE;
			}
			g_srr.hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);

			// 创建按钮控件
			s_hButton1 = CreateWindowEx(0,TEXT("BUTTON"),
						UseString(IDS_GETSIGNALQUALITY),
						WS_CHILD | BS_PUSHBUTTON | WS_TABSTOP,
						20, 30, 200, 40, 
						hWnd,(HMENU)IDB_BUTTON1,
						g_hInst,
						NULL);
			s_hButton2 = CreateWindowEx(0,TEXT("BUTTON"),
						UseString(IDS_SIGNALQUALITY),
						WS_CHILD | BS_PUSHBUTTON | WS_TABSTOP,
						20, 100, 200, 40, 
						hWnd,(HMENU)IDB_BUTTON2,
						g_hInst,
						NULL);			
	
			ShowWindow(s_hButton1, SW_SHOWNORMAL);
			ShowWindow(s_hButton2, SW_SHOWNORMAL);
	

			// 创建静态文本控件，用来显示结果
			s_hWndStaticText = CreateWindowEx( 0, TEXT("STATIC"), UseString(IDS_RESULT),
				WS_VISIBLE | WS_CHILD, 20, 160, 400, 80, hWnd, NULL, g_hInst, NULL );
			
            // Initialize the shell activate info structure
            memset(&s_sai, 0, sizeof (s_sai));
            s_sai.cbSize = sizeof (s_sai);
            break;
        case WM_PAINT:
            hdc = BeginPaint(hWnd, &ps);
            
            // TODO: Add any drawing code here...
            
            EndPaint(hWnd, &ps);
            break;
        case WM_DESTROY:
            CommandBar_Destroy(g_hWndMenuBar);
			// 注销RIL Proxy
			RIL_Deinitialize(g_hRil);
			// 关闭事件量
			CloseHandle(g_srr.hEvent);
            PostQuitMessage(0);
            break;

        case WM_ACTIVATE:
            // Notify shell of our activate message
            SHHandleWMActivate(hWnd, wParam, lParam, &s_sai, FALSE);
            break;
        case WM_SETTINGCHANGE:
            SHHandleWMSettingChange(hWnd, wParam, lParam, &s_sai);
            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:
            {
                // Create a Done button and size it.  
                SHINITDLGINFO shidi;
                shidi.dwMask = SHIDIM_FLAGS;
                shidi.dwFlags = SHIDIF_DONEBUTTON | SHIDIF_SIPDOWN | SHIDIF_SIZEDLGFULLSCREEN | SHIDIF_EMPTYMENU;
                shidi.hDlg = hDlg;
                SHInitDialog(&shidi);
            }
            return (INT_PTR)TRUE;

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

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

    }
    return (INT_PTR)FALSE;
}

// RIL回调函数，用于接收RIL_XXX函数的结果，RIL_XXX函数是异步返回
void CALLBACK RilResultProc(DWORD dwCode, HRESULT hrCmdID, const void* lpData, DWORD cbData, DWORD dwParam)
{
	delete g_srr.pData;

    if (MAX_BUFFER_ALLOCATION > cbData)
    {
        g_srr.pData = new BYTE[cbData];
    }
    else 
    {
        // Incoming buffer size from notification is way too big
        // and may cause problems.
        ASSERT(FALSE);
        g_srr.pData = NULL;
    }
    
    if (g_srr.pData)
    {
        g_srr.dwResultCode = dwCode;
        g_srr.dwDataSize = cbData;
        memcpy(g_srr.pData, (LPBYTE) lpData, cbData);
    }
    else
    {
        // Out of memory
        g_srr.hrID = E_OUTOFMEMORY;
    }

    SetEvent(g_srr.hEvent);
}

// RIL回调函数，用于接收RIL的通知消息
void CALLBACK RilNotifyProc(DWORD dwCode, const void* lpData, DWORD cbData, DWORD dwParam)
{
	switch (dwCode)
	{
		// 我们只关心信号强度的改变
		case RIL_NOTIFY_SIGNALQUALITY:
			if (lpData && (cbData > 0))
			{
				SendMessage((HWND)dwParam, WM_SQCHANGE, 0, (DWORD)lpData);
			}
			break;
		                
		default:
			// 其他通知消息不处理
			break;
	}  
}