enumerate Multifunction printer in vc++

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hi guys i tried to find a sollution like windows os does when i install a multifunction printer (that has a scanner and fax and printers and .....) i want to access to those device on vc++ i did a snipet of code that allows me to get the list of available printers but i want to enumirate what a printer has like internal devices

example >> printer : hp xxy

has a scanner : zyw

has a fax : abc

---------------

printer : samsung

has a phone

has a fax : abc

---------------

code for colleciton of available printers

C++

void outAllDevicesDrivers()
{
    //>> try to get all drivers of printers
    unsigned long level =6; // equivalent to DWORD
    DRIVER_INFO_6 * listOfDrivers;  // appropiete driver params
    unsigned long pointedSizeOfDriverInfo;
    unsigned long sizeOfDriverInfo;
    unsigned long sizeOfStructure;
    int result;
    EnumPrinterDrivers(
            NULL, //context of search local Drivers
            NULL, // Environment of search
            level,
            NULL ,// collection 
            0,    // the buffer
            &sizeOfDriverInfo,
            &sizeOfStructure
        );
    cout<<"the size of driver info "<<sizeOfDriverInfo<<endl;
    //>> allocating the required space
    if(sizeOfDriverInfo>0)
    {
        //cout<<"the number of collection "<<sizeOfDriverInfo/sizeof(DRIVER_INFO_6)<<endl;
    listOfDrivers=new DRIVER_INFO_6[sizeOfDriverInfo];

    result=EnumPrinterDrivers(
        NULL, //context of search local Drivers
        NULL, // Environment of search
        level,
        (LPBYTE)listOfDrivers ,// collection 
        sizeOfDriverInfo ,     // the buffer
        &sizeOfDriverInfo,
        &sizeOfStructure
    );


    if(result>0)
    {
        cout<<"the size of collection "<<sizeOfStructure<<endl;
        for(int index=0;index<sizeOfStructure;index++)
        // for(int index=sizeOfStructure-1;index>=0;index--) reverse loop 
        {
            cout<<" ------------------------------------------------------------- "<<endl;
                //wcout<<"Driver Name "<<listOfDrivers[index].<<endl;
            wcout<<"Driver Name "<<listOfDrivers[index].pName<<endl;
            wcout<<"Driver path "<<listOfDrivers[index].pDriverPath<<endl;
            //wcout<<"DriverType  "<<listOfDrivers[index].pDependentFiles<<endl;
            wcout<<"platform : "<<listOfDrivers[index].pEnvironment<<endl;
            if(listOfDrivers[index].pszHardwareID)
                wcout<<"HardWare ID : "<<listOfDrivers[index].pszHardwareID<<endl;
            if(listOfDrivers[index].dwlDriverVersion)
                wcout<<"Driver Version : "<<listOfDrivers[index].dwlDriverVersion<<endl;
            if(listOfDrivers[index].pConfigFile)
                wcout<<"Driver configuration : "<<listOfDrivers[index].pConfigFile<<endl;
            if(listOfDrivers[index].pDependentFiles)
                wcout<<"Driver dependecies  : "<<listOfDrivers[index].pDependentFiles<<endl;
            if(listOfDrivers[index].pszMfgName)
                wcout<<"Driver Manufacture  : "<<listOfDrivers[index].pszMfgName<<endl;

            cout<<""<<endl;
        }


    }
    //>>

        //for(int index=0;index




        //>> free the space 
        delete [] listOfDrivers;
}

}

is there any idea ?

i did this but i don't know what next

C++

//SetupDiGetClassDevs
// GUID_DEVINTERFACE_IMAGE defined in ==> Wiaintfc.h
// i think it extends from a handler
 HDEVINFO deviceHandler;
 // data
SP_DEVINFO_DATA deviceInfoData;
  unsigned long deviceCount=0;
 DEVPROPTYPE ulPropertyType;
//DWORD size=0,propDataType=0;

BYTE * propertyBuffer=0;

/*
DWORD Property;
PDWORD PropertyRegDataType=NULL; //
PBYTE PropertyBuffer=NULL;*/


DWORD dataT=0;
LPTSTR buffer=NULL;
DWORD requiredSize;


 deviceHandler= SetupDiGetClassDevsW(&GUID_DEVINTERFACE_VOLUME, NULL, NULL,DIGCF_ALLCLASSES);
    if(deviceHandler==INVALID_HANDLE_VALUE)
    {
        cout<<" handler error "<<endl;
    }
    //define size
    deviceInfoData.cbSize=sizeof(SP_DEVINFO_DATA);
    // loop on the devices
    while(SetupDiEnumDeviceInfo(deviceHandler,deviceCount,&deviceInfoData))
    {
        ++deviceCount;
        cout<<deviceCount<<endl;


                                SetupDiGetDeviceRegistryProperty
                                (
                                deviceHandler,
                                &deviceInfoData,
                                SPDRP_DEVICEDESC,           // const property
                                &dataT,     // in out NULL
                                (PBYTE)buffer,//PropertyBuffer,     // in out NULL => required size
                                requiredSize,//PropertyBufferSize, // in 0=========>
                                &requiredSize
                                );




        cout<<"required"<<requiredSize<<endl;





    }

    SetupDiDestroyDeviceInfoList(deviceHandler);

i have improved little bit the code inside the loop

C++

if(	SetupDiGetDeviceRegistryProperty
									(
									deviceHandler,
									&deviceInfoData,
									SPDRP_DEVICEDESC,			// const property
									&dataT,		// in out NULL
									/**************/
									(BYTE*)buffer,//PropertyBuffer,     // in out NULL => required size
									sizeof(buffer),//PropertyBufferSize, // in 0=========>
									&requiredSize
									))
								{
								cout<<"required"<<requiredSize<<endl;
								cout<<buffer<<endl;
								_tprintf (TEXT("    Device Description: \"%s\"\n"), buffer);
								
								}
								else
								{
								cout<<" false \n"<<endl;
								}

i don't know but i don't see the scanner that is inside my printer
maybe i should change

C++

deviceHandler= SetupDiGetClassDevsW(NULL, TEXT("USB"),NULL, DIGCF_PRESENT|DIGCF_ALLCLASSES);

with other thing

and the result that gives me is

1<br />
required50<br />
0035F520<br />
    Device Description: "Concentrateur USB racine"<br />
2<br />
required50<br />
0035F520<br />
    Device Description: "Concentrateur USB racine"<br />
3<br />
required50<br />
0035F520<br />
    Device Description: "Concentrateur USB racine"<br />
4<br />
required50<br />
0035F520<br />
    Device Description: "Concentrateur USB racine"<br />
5<br />
required50<br />
0035F520<br />
    Device Description: "Concentrateur USB racine"<br />
6<br />
required50<br />
0035F520<br />
    Device Description: "Concentrateur USB racine"<br />
7<br />
required50<br />
0035F520<br />
    Device Description: "Concentrateur USB racine"<br />
8<br />
required54<br />
0035F520<br />
    Device Description: "PÚriphÚrique USB composite"<br />
9<br />
required38<br />
0035F520<br />
    Device Description: "HP Officejet J4660"<br />
10<br />
required66<br />
0035F520<br />
    Device Description: "Prise en charge d?impression USB"<br />
11<br />
required52<br />
0035F520<br />
    Device Description: "Officejet J4660 (DOT4USB)"<br />
12<br />
required54<br />
0035F520<br />
    Device Description: "PÚriphÚrique USB composite"<br />
13<br />
required46<br />
0035F520<br />
    Device Description: "PÚriphÚrique audio USB"<br />
14<br />
required52<br />
0035F520<br />
    Device Description: "PÚriphÚrique d?entrÚe USB"<br />
15<br />
required52<br />
0035F520<br />
    Device Description: "PÚriphÚrique d?entrÚe USB"<br />
16<br />
required52<br />
0035F520<br />
    Device Description: "PÚriphÚrique d?entrÚe USB"<br />
17<br />
required54<br />
0035F520<br />
    Device Description: "PÚriphÚrique USB composite"<br />
18<br />
required46<br />
0035F520<br />
    Device Description: "PÚriphÚrique vidÚo USB"<br />
007E5828<br />
Appuyez sur une touche pour continuer...

Posted 8-Jan-13 6:44am

merousoft

Updated 9-Jan-13 22:38pm

v3

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Comments

Jochen Arndt 8-Jan-13 13:50pm

You may try to use the Setup API:
Use SetupDiGetClassDevs() to access specific classes or just all classes and enumerate the devices with SetupDiEnumDeviceInfo(). Then get the properties like SPDRP_DEVICEDESC for each device and check for identical manufacturer and model sub strings.

Posted as comment because I don't know if this can be achieved this way. Getting the info will work, but the properties may not contain enough information to identify devices belonging to a specific printer.

merousoft 9-Jan-13 13:19pm

i did what u told me but i don't know what next

Jochen Arndt 9-Jan-13 13:38pm

You should pass 0 for the buffer size when requesting the size rather than passing the var requiredSize (it is usually not zero with the next call when there are multiple devices).

Then allocate the buffer for the property string and retrieve it:
buffer = new TCHAR[requiredSize / sizeof(TCHAR)];
SetupDiGetDeviceRegistryProperty(...);
cout<<buffer<<endl;
delete [] buffer;
buffer = NULL;

You may also use a buffer of fixed size (e.g. 512 wide chars / 1024 bytes; that should be enough for all strings).

Now you should have the description string printed (the same string as displayed in the hardware control panel).

merousoft 10-Jan-13 5:22am

yea did it and i have a listing but what really what i'm looking for is to be able to deal with components example i have a printer that containts a scanner so i need to get access to this scanner provided by this printer

Jochen Arndt 10-Jan-13 5:33am

In my first post i said that there may be not enough information to get what you want. But you should have a look on the hardware control panel to see how you scanner is listed there. Most information shown there can be retrieved using the Setup API. Besides the device description you may also get other properties like the user friendly name SPDRP_FRIENDLYNAME.

Finally you have to get the name, model, and manufacturere of your printer and check if other devices match in some way.

JackDingler 8-Jan-13 14:42pm

Jochen is right. These devices are controlled by multiple drivers. A different driver for each function.

You'll need to iterate these different driver types separately.

2 solutions

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«_Superman_» · Answer 1 · 2013-01-09T18:28:00

Solution 2

You can do this by enumerating USB devices and reading its descriptors.
For USB devices the internal hierarchy is as follows -
Device ---contains--> Configuration --contains--> Interface --contains--> Endpoints.

For a multi-function device each function will have an interface each.
So any USB device having multiple interfaces is a multi-function device.

Posted 9-Jan-13 18:28pm

«_Superman_»

Comments

merousoft 10-Jan-13 4:50am

yea this is what i'm trying to do but how to get config is there any specifique method ? or is there any possibility to fetch devices from by category ?

«_Superman_» 10-Jan-13 6:16am

Open the root hub and use DeviceIoControl to send IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION.

merousoft 10-Jan-13 8:23am

is there any code snippet or example that shows this process ?
and if is there some methods to enumerate PnP manager ?

Christian Graus · Answer 2 · 2013-01-08T12:55:00

Solution 1

I don't think it's possible. The system can tell what printers exist, but not if they are also a scanner, etc. The most you can do, is notice that a scanner is also connected, and perhaps compare their names.

Posted 8-Jan-13 12:55pm

Christian Graus