how to control device disable with source code in visual studio 2019? - visual-studio

Question

my pc is OS: windows10 x64.
i want to enable / disable virtual com port using code.
actually, error is happened below,
errorcode = #define ERROR_ACCESS_DENIED 5L
in window10, i cannot not control device disable or enable ???
or source code is wrong ??
if you know that, please help me
used code is below. that is get from stackoverflow.com
bool COhCoachView::ControlDeviceDriver(bool bStatus) {
IN LPTSTR HardwareId;
//HardwareId = L"DAUDIO\\FUNC_01&VEN_10DE&DEV_0018&SUBSYS_10DE0101";
// dock device name : \\?\USB#VID_0462&PID_5740#00000000001A#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
CString debug;
char* ptr;
::SendMessage(hwndLogBar, MSG_WRITE_LOG, 0, (LPARAM)(LPCTSTR)"ControlDeviceDriver");
DWORD NewState;
if (bStatus) {
NewState = DICS_ENABLE;
}
else {
NewState = DICS_DISABLE;
}
DWORD i, err;
bool found = false;
HDEVINFO hDevInfo;
SP_DEVINFO_DATA spDevInfoData;
hDevInfo = SetupDiGetClassDevs(NULL, 0, NULL, DIGCF_ALLCLASSES | DIGCF_PRESENT);
if (hDevInfo == INVALID_HANDLE_VALUE)
{
printf("blad1");
return false;
}
spDevInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
for (i = 0; SetupDiEnumDeviceInfo(hDevInfo, i, &spDevInfoData); i++)
{
DWORD DataT;
LPTSTR p, buffer = NULL;
DWORD buffersize = 0;
// get all devices info
while (!SetupDiGetDeviceRegistryProperty(hDevInfo,
&spDevInfoData,
SPDRP_HARDWAREID,
&DataT,
(PBYTE)buffer,
buffersize,
&buffersize))
{
if (GetLastError() == ERROR_INVALID_DATA) {
break;
}
else if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
if (buffer)
LocalFree(buffer);
buffer = (TCHAR*)LocalAlloc(LPTR, buffersize);
}
else {
goto cleanup_DeviceInfo;
}
}
if (GetLastError() == ERROR_INVALID_DATA)
continue;
ptr = strstr(buffer, "VID_0462&PID_5740");
if (ptr != NULL)
{
debug.Format("device name: %s", buffer);
::SendMessage(hwndLogBar, MSG_WRITE_LOG, 0, (LPARAM)(LPCTSTR)debug);
found = true;
}
//find device with HardwerId
/*
for (p = buffer; *p && (p < &buffer[buffersize]); p += lstrlen(p) + sizeof(TCHAR)) {
//debug.Format("device name: %s", p);
//::SendMessage(hwndLogBar, MSG_WRITE_LOG, 0, (LPARAM)(LPCTSTR)debug);
if (!_tcscmp(HardwareId, p)) {
found = true;
break;
}
}
*/
if (buffer)
LocalFree(buffer);
// if device found change it's state
if (found)
{
SP_PROPCHANGE_PARAMS params;
params.ClassInstallHeader.cbSize = sizeof(SP_CLASSINSTALL_HEADER);
params.ClassInstallHeader.InstallFunction = DIF_PROPERTYCHANGE;
params.Scope = DICS_FLAG_GLOBAL;
params.StateChange = NewState;
// setup proper parameters
if (!SetupDiSetClassInstallParams(hDevInfo, &spDevInfoData, &params.ClassInstallHeader, sizeof(params))) {
DWORD errorcode = GetLastError();
debug.Format("==== error %x ======", errorcode);
::SendMessage(hwndLogBar, MSG_WRITE_LOG, 0, (LPARAM)(LPCTSTR)debug);
}
// use parameters
if (!SetupDiCallClassInstaller(DIF_PROPERTYCHANGE, hDevInfo, &spDevInfoData)) {
DWORD errorcode = GetLastError(); // error here
if (errorcode == 0x05)
{
for (int i = 0; i < 5; i++)
{
if (SetupDiCallClassInstaller(DIF_PROPERTYCHANGE, hDevInfo, &spDevInfoData))
{
::SendMessage(hwndLogBar, MSG_WRITE_LOG, 0, (LPARAM)(LPCTSTR)"retry succeeded for disabling device");
break;
}
::SendMessage(hwndLogBar, MSG_WRITE_LOG, 0, (LPARAM)(LPCTSTR)"retry failed for disabling device");
Sleep(20);
}
}
debug.Format("==== error2 %x ======", errorcode);
::SendMessage(hwndLogBar, MSG_WRITE_LOG, 0, (LPARAM)(LPCTSTR)debug);
}
switch (NewState) {
case DICS_DISABLE:
::SendMessage(hwndLogBar, MSG_WRITE_LOG, 0, (LPARAM)(LPCTSTR)"Device OFF");
printf("off");
break;
case DICS_ENABLE:
::SendMessage(hwndLogBar, MSG_WRITE_LOG, 0, (LPARAM)(LPCTSTR)"Device ON");
printf("on");
break;
}
break;
}
}
cleanup_DeviceInfo:
err = GetLastError();
SetupDiDestroyDeviceInfoList(hDevInfo);
SetLastError(err);
return true;
return true;
}
thanks a lot