枚举系统设备
来源:岁月联盟
时间:2008-09-08
#include <stdio.h>
#include <setupapi.h>
#include <devguid.h>
#include <regstr.h>
#include <shlwapi.h>
#pragma comment(lib,"setupapi.lib")
<!--[if !supportEmptyParas]--><!--[endif]-->
#define BUFSIZE1024
#define SM_SERVERR289
void main()
{
HDEVINFO hDevInfo;
SP_DEVINFO_DATA DeviceInfoData;
DWORD i;
hDevInfo = SetupDiGetClassDevs((LPGUID) &GUID_DEVCLASS_CDROM, 0, 0,DIGCF_PRESENT);
/*
GUID_DEVCLASS_FDC软盘控制器
GUID_DEVCLASS_DISPLAY显示卡
GUID_DEVCLASS_CDROM光驱
GUID_DEVCLASS_KEYBOARD键盘
GUID_DEVCLASS_COMPUTER计算机
GUID_DEVCLASS_SYSTEM系统
GUID_DEVCLASS_DISKDRIVE磁盘驱动器
GUID_DEVCLASS_MEDIA声音、视频和游戏控制器
GUID_DEVCLASS_MODEMMODEM
GUID_DEVCLASS_MOUSE鼠标和其他指针设备
GUID_DEVCLASS_NET网络设备器
GUID_DEVCLASS_USB通用串行总线控制器
GUID_DEVCLASS_FLOPPYDISK软盘驱动器
GUID_DEVCLASS_UNKNOWN未知设备
GUID_DEVCLASS_SCSIADAPTERSCSI 和 RAID 控制器
GUID_DEVCLASS_HDCIDE ATA/ATAPI 控制器
GUID_DEVCLASS_PORTS端口(COM 和 LPT)
GUID_DEVCLASS_MONITOR监视器
*/
if (hDevInfo == INVALID_HANDLE_VALUE)
{
// Insert error handling here.
return 1;
}
// Enumerate through all devices in Set.
DeviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
for (i=0;SetupDiEnumDeviceInfo(hDevInfo,i,
&DeviceInfoData);i++)
{
DWORD DataT;
//LPTSTR buffer = NULL;
char buffer[2048];
DWORD buffersize =sizeof(buffer);
while (!SetupDiGetDeviceRegistryProperty(
hDevInfo,
&DeviceInfoData,
SPDRP_FRIENDLYNAME,
&DataT,
(PBYTE)buffer,
buffersize,
&buffersize))
{
if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
{
// Change the buffer size.
//if (buffer) LocalFree(buffer);
//buffer = (PSP_INF_INFORMATION)LocalAlloc(LPTR,buffersize);
<!--[if !supportEmptyParas]--><!--[endif]-->
}
else
{
// Insert error handling here.
break;
}
}
if (buffer != NULL && i == 0)
{
temp.Format("<光盘驱动器>");
str += temp;
}
temp.Format("<VALUE>%s</VALUE>",buffer);
str += temp;
if (buffer) LocalFree(buffer);
}
if (i != 0)
{
temp.Format("</光盘驱动器>");
str += temp;
}
if ( GetLastError()!=NO_ERROR &&
GetLastError()!=ERROR_NO_MORE_ITEMS )
{
return 1;
}
<!--[if !supportEmptyParas]--><!--[endif]-->
// Cleanup
SetupDiDestroyDeviceInfoList(hDevInfo);
}
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