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// WifiSwitch.cpp : 定义应用程序的入口点。
//

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

#define MAX_LOADSTRING 100
#define WM_CTLCENTER WM_USER+112
#define WM_BTHSwitch WM_USER+7229
#define BTH_STATUS_ON 1
#define BTH_STATUS_OFF 0

HINSTANCE            g_hInst;            // 当前实例
HWND                hWndDes = NULL;
int                    nRet;
DWORD                dwMode;

ATOM            MyRegisterClass(HINSTANCE, LPTSTR);
BOOL            InitInstance(HINSTANCE, int);
LRESULT CALLBACK    WndProc(HWND, UINT, WPARAM, LPARAM);

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

    if (!InitInstance(hInstance, nCmdShow)) 
    {
        return FALSE;
    }

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

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

    return (int) msg.wParam;
}

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_BTHSWITCH));
    wc.hCursor       = 0;
    wc.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
    wc.lpszMenuName  = 0;
    wc.lpszClassName = szWindowClass;

    return RegisterClass(&wc);
}

BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
    HWND hWnd;
    TCHAR szTitle[MAX_LOADSTRING] = _T("Bluetooth Switcher");        // 标题栏文本
    TCHAR szWindowClass[MAX_LOADSTRING] = _T("TBWidget");    // 主窗口类名

    g_hInst = hInstance; // 将实例句柄存储在全局变量中

    SHInitExtraControls();

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

    hWnd = FindWindow(szWindowClass, szTitle);    
    if (hWnd) 
    {
        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;
    }

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

    hWndDes = FindWindow(_T("TBClass"), _T("TBMainWnd"));
    SendMessage(hWnd, WM_BTHSwitch, 0, 0);

    return TRUE;
}

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message) 
    {
    case WM_BTHSwitch:
        nRet = BthGetMode(&dwMode);

        if (nRet == ERROR_SUCCESS)
        {
            if (dwMode == BTH_CONNECTABLE)    // enabled
            {
                nRet = BthSetMode(BTH_POWER_OFF);
                if (nRet == ERROR_SUCCESS)
                {
                    //off
                    SendMessage(hWndDes, WM_CTLCENTER, WM_BTHSwitch, BTH_STATUS_OFF);
                }
            }
            else if (dwMode == BTH_POWER_OFF)
            {
                nRet = BthSetMode(BTH_CONNECTABLE);
                if (nRet == ERROR_SUCCESS)
                {
                    //on
                    SendMessage(hWndDes, WM_CTLCENTER, WM_BTHSwitch, BTH_STATUS_ON);
                }
            }
        }

        exit(0);
        break;

    case WM_DESTROY:
        PostQuitMessage(0);
        break;

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