枚举vc ++中的多功能打印机 [英] enumerate Multifunction printer in vc++
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问题描述
0下来投票最爱
嗨我们试图找到一个类似windows os的解决方案，当我安装多功能打印机时（有一个扫描仪和传真和打印机和.....）我想访问vc ++上的那些设备我做了一个代码的snipet，允许我获得可用的打印机列表，但我想掩盖打印机有什么样的内部设备
示例>>打印机：hp xxy
有扫描仪：zyw
有传真：abc
---------------
printer：samsung
有一部电话
有传真：abc
---------------
可用打印机收藏代码
0 down vote favorite
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
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;
}
}
有什么想法吗？
i这样做但我不知道是什么下一页
is there any idea ?
i did this but i don''t know what next
//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里面的代码改善了一点点循环
i have improved little bit the code inside the loop
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不知道，但我看不到打印机里面的扫描仪
也许我应该更改
i don''t know but i don''t see the scanner that is inside my printer
maybe i should change
deviceHandler= SetupDiGetClassDevsW(NULL, TEXT("USB"),NULL, DIGCF_PRESENT|DIGCF_ALLCLASSES);
与其他东西
和给我的结果是
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 />
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推荐答案
您可以通过枚举USB设备并读取其描述符来实现此目的。
对于USB设备，内部层次结构如下 -
设备---包含 - >配置 - 包含 - >界面 - 包含 - >端点。
对于多功能设备，每个功能都有一个接口。
因此任何具有多个接口的USB设备都是多功能的功能设备。
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.
我认为这是不可能的。系统可以判断存在哪些打印机，但如果它们也是扫描仪等，则不会。您可以做的最多，是注意到扫描仪也已连接，并且可能比较它们的名称。
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.
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