btfilter.cxx

Windows CE操作系统中适用的蓝牙驱动程序

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//
/**
THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED 
WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.


Abstract:
	Windows CE Bluetooth application sample

**/
#include <windows.h>

#include <windows.h>
#include <stdio.h>

#include <svsutil.hxx>

#include <bt_api.h>

static void SetFilter (BT_ADDR *pba) {
	DWORD iRes;

	if (pba)
		iRes = BthSetInquiryFilter (pba);
	else
		iRes = BthClearInquiryFilter ();

	if (iRes == ERROR_SUCCESS)
		wprintf (L"Successfully %s event filter.\n", pba ? L"set" : L"cleared");
	else
		wprintf (L"Failed to %s event filter. Error %d\n", pba ? L"set" : L"clear", iRes);
}

int GetBA (BT_ADDR *pba, WCHAR *p) {
	while (*p == ' ')
		++p;

	for (int i = 0 ; i < 12 ; ++i, ++p) {
		if (! iswxdigit (*p))
			return FALSE;

		int c = *p;
		if (c >= 'a')
			c = c - 'a' + 0xa;
		else if (c >= 'A')
			c = c - 'A' + 0xa;
		else c = c - '0';

		if ((c < 0) || (c > 16))
			return FALSE;

		*pba = *pba * 16 + c;
	}

	if ((*p != ' ') && (*p != '\0'))
		return FALSE;

	return TRUE;
}

int wmain (int argc, WCHAR **argv) {
    BT_ADDR ba;

    if (argc == 2) {
        if (wcsicmp (argv[1], L"clear") == 0)
            SetFilter (NULL);
        else if (GetBA (&ba, argv[1]))
            SetFilter (&ba);
        else
            wprintf (L"Command not understood. Available options: %s {clear|bluetooth address}\n", argv[0]);
        return 0;
    }
    wprintf (L"Bluetooth inquiry filter.\n");
    wprintf (L"Clear previous filter (y/n)?");

    WCHAR szResponse[_MAX_PATH];
    wscanf (L"%s", szResponse);
    if ((szResponse[0] == 'y') || (szResponse[0] == 'Y'))
        SetFilter (NULL);

    wprintf (L"Set new filter (y/n)?");
    wscanf (L"%s", szResponse);
    if ((szResponse[0] == 'y') || (szResponse[0] == 'Y')) {
        wprintf (L"Input Bluetooth address: ");
        wscanf (L"%s", szResponse);
        if (GetBA (&ba, szResponse))
            SetFilter(&ba);
        else
            wprintf (L"Incorrect Bluetooth address %s\n", szResponse);
    }

    return 0;
}