1.列舉系統裝置
hdevinfo hdevinfo;
sp_devinfo_data deviceinfodata;
dword dwdevid;
// 得到所有裝置 hdevinfo
hdevinfo = setupdigetclassdevs(null, 0, 0,
digcf_present | digcf_allclasses);
//根據此處引數不同可分類列舉裝置，這裡列舉了所有裝置
if (hdevinfo == invalid_handle_value)
deviceinfodata.cbsize = sizeof(sp_devinfo_data);
for (dwdevid = 0; setupdienumdeviceinfo(hdevinfo, dwdevid, &deviceinfodata); dwdevid++)
else
break;
}tchar strguid[512] = _t("");//裝置guid
_stprintf_s(strguid, _t("%x-%x-%x-%x%x%x%x%x%x%x%x "),
deviceinfodata.classguid.data1,
deviceinfodata.classguid.data2,
deviceinfodata.classguid.data3,
deviceinfodata.classguid.data4[0],
deviceinfodata.classguid.data4[1],
deviceinfodata.classguid.data4[2],
deviceinfodata.classguid.data4[3],
deviceinfodata.classguid.data4[4],
deviceinfodata.classguid.data4[5],
deviceinfodata.classguid.data4[6],
deviceinfodata.classguid.data4[7]);
deviceinfo.devid = dwdevid;//裝置id
deviceinfo.bdisabled =
isdisabled(dwdevid, hdevinfo);//是否已禁用
deviceinfo.bdisableable =
isdisableable(dwdevid, hdevinfo);//是否可禁用
wcscpy_s(deviceinfo.devicename, buffer);,//裝置名
if (buffer)
heapfree(getprocessheap(), 0, buffer);
}if (getlasterror() != no_error &&
getlasterror() != error_no_more_items)
setupdidestroydeviceinfolist(hdevinfo);
return true;
//根據裝置id判斷指定裝置是否可禁用
boolisdisableable(dword dwdevid, hdevinfo hdevinfo)
;dword dwdevstatus, dwproblem;
if (!setupdienumdeviceinfo(hdevinfo, dwdevid, &devinfodata))
//查詢裝置狀態
if (cm_get_devnode_status(&dwdevstatus, &dwproblem, devinfodata.devinst, 0) != cr_success)
return ((dwdevstatus & dn_disableable) && (dwproblem != cm_prob_hardware_disabled));
}//根據裝置id判斷指定裝置是否已禁用
bool isdisabled(dword dwdevid, hdevinfo hdevinfo)
;dword dwdevstatus, dwproblem;
if (!setupdienumdeviceinfo(hdevinfo, dwdevid, &devinfodata))
//查詢裝置狀態
if (cm_get_devnode_status(&dwdevstatus, &dwproblem, devinfodata.devinst, 0) != cr_success)
return ((dwdevstatus & dn_has_problem) && (dwproblem == cm_prob_disabled));
}//根據裝置id以及dwnewstate：dics_enable，dics_disable兩個引數來啟用，禁用裝置
bool statechange(dword dwnewstate, dword dwdevid, hdevinfo hdevinfo)
;sp_devinstall_params devparams;
//查詢裝置資訊
if (!setupdienumdeviceinfo(hdevinfo, dwdevid, &devinfodata))
//設定裝置屬性變化引數
propchangeparams.classinstallheader.cbsize = sizeof(sp_classinstall_header);
propchangeparams.classinstallheader.installfunction = dif_propertychange;
propchangeparams.scope = dics_flag_global; //使修改的屬性儲存在所有的硬體屬性檔案
propchangeparams.statechange = dwnewstate;
propchangeparams.hwprofile = 0;
//改變裝置屬性
if (!setupdisetclassinstallparams(hdevinfo,
&devinfodata,
(sp_classinstall_header *)&propchangeparams,
sizeof(propchangeparams)))
propchangeparams.classinstallheader.cbsize = sizeof(sp_classinstall_header);
propchangeparams.classinstallheader.installfunction = dif_propertychange;
propchangeparams.scope = dics_flag_configspecific;//使修改的屬性儲存在指定的屬性檔案
propchangeparams.statechange = dwnewstate;
propchangeparams.hwprofile = 0;
//改變裝置屬性並呼叫安裝服務
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