details of installed devices

[shobaradha]

hi

it will be very helpful to me if anyone tells me a way to find out the details of the installed devices in a system like display adapters, network adapters, keyboard, mouse, monitor etc., through code, which in general we see in the 'device manager'.

thanking u in adance

[Mick]

attached is a DDK sample project, run the enable.exe and you'll see how to enumerate the devices, or look at the code, it should point you in the right direction.

[shobaradha]

hi

i downloaded the file. the exe found in it is working fine. but i do not know how to execute the source code provided. i tried it by including them in a win32 application project. but it gives so many errors in CFGMGR32.h.

plz tell me what to do?

[Mick]

Originally posted by shobaradha
hi

i downloaded the file. the exe found in it is working fine. but i do not know how to execute the source code provided. i tried it by including them in a win32 application project. but it gives so many errors in CFGMGR32.h.

plz tell me what to do?

That is because it comes from the DDK (Driver Device Kit) which I'm sure you don't have installed. You have to take what is given and translate it into a VC++ IDE project, that was what I meant by getting you a start in the right direction.

But, look at the .c files, look how it uses SetupDiOpenClassRegKey(...) etc, those calls can be found in the platform SDK, via the setupapi.h, remove the CM_get_devnode_status, which is where the CFGMGR32.h (DDK header) comes into play, those calls are depreciated anyways.

[Sam Hobbs]

Try QueryDosDevice. The description of it implies it only works for DOS, but it works for most NT/2000/XP device drivers too. It might not work for what you need but it might.

[RookieRitwik]

Well i tried using ConstructDevice and GetRegisterProperty but i got an error in GetRegisterProperty on parameter 5 saying

SetupDiGetDeviceRegistryPropertyA' : cannot convert parameter 5 from 'void *' to 'unsigned char *'

Help....any alternate function would also be helpful

BOOL GetRegistryProperty(HDEVINFO DeviceInfoSet,
PSP_DEVINFO_DATA DeviceInfoData,
ULONG Property,
PVOID Buffer,
PULONG Length)
{
while (!SetupDiGetDeviceRegistryProperty(DeviceInfoSet,
DeviceInfoData,
Property,
NULL,
(PVOID)*(TCHAR **)Buffer,
*Length,
Length
))
{
if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
{
//
// We need to change the buffer size.
//
if (*(LPTSTR *)Buffer)
LocalFree(*(LPTSTR *)Buffer);
*(LPTSTR *)Buffer = LocalAlloc(LPTR,*Length);
}
else
{
//
// Unknown Failure.
//
if (GetLastError() != ERROR_INVALID_DATA)
DisplayError(TEXT("GetDeviceRegistryProperty"));
return FALSE;
}
}

return (*(LPTSTR *)Buffer)[0];
}


#define UnknownDevice TEXT("<Unknown Device>")
BOOL ConstructDeviceName( HDEVINFO DeviceInfoSet,
PSP_DEVINFO_DATA DeviceInfoData,
PVOID Buffer,
PULONG Length)
{
if (!GetRegistryProperty(DeviceInfoSet,
DeviceInfoData,
SPDRP_FRIENDLYNAME ,
Buffer,
Length))
{
if (!GetRegistryProperty(DeviceInfoSet,
DeviceInfoData,
SPDRP_DEVICEDESC ,
Buffer,
Length))
{
if (!GetRegistryProperty(DeviceInfoSet,
DeviceInfoData,
SPDRP_CLASS ,
Buffer,
Length))
{
if (!GetRegistryProperty(DeviceInfoSet,
DeviceInfoData,
SPDRP_CLASSGUID ,
Buffer,
Length))
{
*Length = (_tcslen(UnknownDevice)+1)*sizeof(TCHAR);
*(LPTSTR *)Buffer = LocalAlloc(LPTR,*Length);
_tcscpy(*(LPTSTR *)Buffer,UnknownDevice);
}
}
}
}
return TRUE;
}

[vcprog]

Originally Posted by Mick

attached is a DDK sample project, run the enable.exe and you'll see how to enumerate the devices, or look at the code, it should point you in the right direction.

Hi all

How can i download and attached DDk sample project,run the enable.exe.

[yulin11]

you can find a open source library, it will save your lots of time.

[daAnde]

Hi guys,
sorry I am new here - maybe my question is stupid,
but i cannot find the DDK sample project.
Where can I download it?