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| Thanks There is sufficient light for those who desire to see, and there is sufficient darkness for those of a contrary disposition.
Blaise Pascal
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you're welcome.
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Hey ,
i study technical computer science and now i want to start with my first driver under WINXP and WINDDK.
I have written two programs to display all connected devices to the computer and a real life detection of adding and removing to the system on two different ways.
/***************/
first:
i build a console application like "usb view" from microsoft to list all devices connected to the pc. After detecting the descriptor i want to start with reading and writing.
To get the usb device i used the IOCTL commands from <a href="http://msdn.microsoft.com/en-us/library/aa476229.aspx">http://msdn.microsoft.com/en-us/library/aa476229.aspx</a>[<a href="http://msdn.microsoft.com/en-us/library/aa476229.aspx" target="_blank" title="New Window">^</a>]
1.) detect host controller (worked)
2.) connect to root hub (worked)
3.) list all ports and connected devices (worked)
4.) fill structe with device desciptor and more
usefull data with this code
IOCTL_USB_GET_NODE_CONNECTION_INFORMATION (worked)
5.) create handle to usb device (problems)
i dont know on which way i can detect the full device path like
\\\\?\\USB#Vid_####&Pid_#####879fe23a000000e83230303630313130#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
or detect a direct handle, i have only the handle to the root hub and the port number.
this is my structure
------------------------------------------
<code>
typedef struct _USB_DEVICES {
HANDLE hDeviceHandle; //RotHubHandle
HANDLE hUSBDeviceHandle; //USBDeviceHandle -> ???
DWORD dwPort; //Port
UCHAR CurrentConfigurationValue;
UCHAR DeviceAddress[2];
UCHAR NumberOfOpenPipes[4];
UCHAR ConnectionStatus[4];
BOOLEAN LowSpeed;
BOOLEAN DeviceIsHub;
USB_PIPE_INFO PipeList[32];
USB_DEVICE_DESCRIPTOR DeviceDescriptor;
USB_CONNECTION_STATUS DeviceStatus;
USB_CONFIGURATION_DESCRIPTOR ConfigurationDescriptor;
USB_INTERFACE_DESCRIPTOR InterfaceDescriptor;
} Ts_UsbDevices;
</code>
------------------------------------------
and now my code
------------------------------------------
<code>
......
//get information aber the connected device connected on "dwPort"
ConnectionInformation.ConnectionIndex = s_UsbDevice[dwActiveDevice].dwPort;
bSuccess = DeviceIoControl(s_UsbDevice[dwActiveDevice].hDeviceHandle, -> RootHubHandle
IOCTL_USB_GET_NODE_CONNECTION_INFORMATION,
&ConnectionInformation,
sizeof(ConnectionInformation),
&ConnectionInformation,
sizeof(ConnectionInformation),
&dwBytesReturned,
NULL);
if(bSuccess)
{
// get DeviceName or Handle to start with reading and writing
...
}
</code>
------------------------------------------
i dont know which IOCTL i have to use or on which way i can try to implement some read and wirte functions...
after this problems i checked the internet and found the SetupDi functions and that was the reasen why i started to write a seccond programm
/***************/
seccond:
like the first programm, i build a console application which list all devices. With this function i can detect the device path to create a handle
1.) get all connected devices with SetupDiGetClassDevs() (worked)
2.) get inferfaces with SetupDiEnumDeviceInterfaces() (worked)
3.) get interface details with SetupDiGetInterfaceDeviceDetail() (worked)
4.) CreateFile / DeviceIoControl failed (problems)
i have 3 devices connected to my computer via usb (keyboard, mouse, mtp device (iriver clix), when i tried to create a hanlde to the mouse and keyboard i get this message:
ERROR_GEN_FAILURE 31 (0x1F) - A device attached to the system is not functioning.
ok.. i found out, that microsoft has blocked this devices.. no problem... i dont want to use this.
Then i create a handle to the mtp device and their i have at first no problem. (no error code)
then i tried to test a lot a IOCTL codes with DeviceIoControl to get somme information or to read but erverytime i get the same error message (ERROR_GEN_FAILURE)
i looked in the internet and a lot of people do it on the same way and have no problem. i dont know whats going wrong.
------------------------------------------
<code>
#include <stdio.h>
#include <windows.h>
#include <setupapi.h>
#include <devguid.h>
#include <regstr.h>
#include "initguid.h"
static GUID GUID_DEVINTERFACE_USB_DEVICE = { 0xA5DCBF10L, 0x6530, 0x11D2, { 0x90, 0x1F, 0x00, 0xC0, 0x4F, 0xB9, 0x51, 0xED } };
int main( int argc, char *argv[ ], char *envp[ ] )
{
//HidD_GetHidGuid(&GUID);
DWORD i;
DWORD InterfaceNumber= 0;
HDEVINFO hDevInfo;
SP_DEVINFO_DATA DeviceInfoData;
SP_DEVICE_INTERFACE_DATA DeviceInterfaceData;
struct _GUID GUID = GUID_DEVINTERFACE_USB_DEVICE;
// Create a HDEVINFO with all present devices.
hDevInfo = SetupDiGetClassDevs(&GUID_DEVINTERFACE_USB_DEVICE,NULL,NULL,DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
if (hDevInfo == INVALID_HANDLE_VALUE)
{
// Insert error handling here.
return 1;
}
// Enumerate through all devices in Set.
DeviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
for (i=0;SetupDiEnumDeviceInfo(hDevInfo,i,&DeviceInfoData);i++)
{
DWORD DataT;
LPTSTR buffer = NULL;
DWORD buffersize = 0;
while (!SetupDiGetDeviceRegistryProperty(hDevInfo,&DeviceInfoData,SPDRP_LOCATION_INFORMATION ,&DataT,(PBYTE)buffer,buffersize,&buffersize))
{
if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
{
// Change the buffer size.
if (buffer) LocalFree(buffer);
buffer = (LPTSTR)LocalAlloc(LPTR,buffersize);
}
else
{
// Insert error handling here.
break;
}
}
if(buffer != NULL)
{
printf("\nDevice Number %i is: %ws",i, buffer);
InterfaceNumber = 0; // this just returns the first one, you can iterate on this
DeviceInterfaceData.cbSize = sizeof(DeviceInterfaceData);
if (SetupDiEnumDeviceInterfaces(hDevInfo,&DeviceInfoData,&GUID,InterfaceNumber,&DeviceInterfaceData))
{
DWORD needed;
SetupDiGetInterfaceDeviceDetail(hDevInfo, &DeviceInterfaceData,NULL, 0, &needed, NULL);
PSP_INTERFACE_DEVICE_DETAIL_DATA detail = (PSP_INTERFACE_DEVICE_DETAIL_DATA) malloc(needed);
if (detail)
{
// fill the device details
detail->cbSize = sizeof(SP_INTERFACE_DEVICE_DETAIL_DATA);
if (SetupDiGetInterfaceDeviceDetail(hDevInfo,&DeviceInterfaceData,detail, needed,NULL, NULL))
{
OpenDevice(detail->DevicePath));
}
}
}
else
{
printf("\n\nNo interface");
}
}
if (buffer) LocalFree(buffer);
}
if ( GetLastError()!=NO_ERROR && GetLastError()!=ERROR_NO_MORE_ITEMS )
{
// Insert error handling here.
return false;
}
// Cleanup
SetupDiDestroyDeviceInfoList(hDevInfo);
getchar();
return 0;
}
void OpenDevice(CHAR DevicePath)
{
HANDLE hUSBDevice = CreateFile(DevicePath,
GENERIC_READ || GENERIC_WRITE,
FILE_SHARE_READ || FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
FILE_FLAG_OVERLAPPED,
NULL);
if(hUSBDevice != INVALID_HANDLE_VALUE)
{
// get pipe configuration
bSuccess = DeviceIoControl(s_UsbDevice->hUSBDevice,
IOCTL_GET_PIPE_CONFIGURATION, NULL,
0, &sUSBPipeInformation, sizeof(sUSBPipeInformation),
&dwBytesReturned,NULL);
if(!bSuccess)
{
//mpt device failed here
// print error message
USB_HW_ErrMsg();
}
}
else
{
//KeyBoad and Mouse failed here
}
}
</code>
------------------------------------------
i hope you can help me.
best regards
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Hai,
I am having a C++ exe. I want to connect the exe to a databse that is present in another computer(server) and get images from that system.How I can accomplish this?
Thanks,
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What sort of database are the images stored in?"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"Man who follows car will be exhausted." - Confucius
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Hi,
Could any one tell me the Difference between AVIStreamWrite and AVIStreamWriteData?
Thanks
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| It is explained here[^] in the MSDN documentation. txtspeak is the realm of 9 year old children, not developers. Christian Graus
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I didnt get the clear picture from MSDN.
Could u brief it?
Thanks
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Hi all
I am trying to fetch data from ORACLE.Connection part is working.When i try to fetch the data then i am getting error.
Microsoft OLE DB Provider for Oracle Error: -2147467259
Data type is not supported.
Unspecified error
I am trying give some details.
Table
CREATE TABLE "SYSTEM"."TEST" ( "OID" RAW(16), "EVENTID" NUMBER NOT NULL ,
"NAME" VARCHAR2(30) NOT NULL , "TABLE_OBJNO" NUMBER NOT NULL ,
"USAGE" NUMBER NOT NULL , "ENABLE_FLAG" NUMBER NOT NULL ,
"MAX_RETRIES" NUMBER, "RETRY_DELAY" NUMBER, "PROPERTIES" NUMBER,
"RET_TIME" NUMBER, "QUEUE_COMMENT" VARCHAR2(2000),
"SUBSCRIBERS" "SYS"."AQ$_SUBSCRIBERS", "MEMORY_THRESHOLD" NUMBER,
"SERVICE_NAME" VARCHAR2(64), "NETWORK_NAME" VARCHAR2(256),
CONSTRAINT "AQ$_QUEUES_CHECK" UNIQUE ("NAME", "TABLE_OBJNO") VALIDATE ,
CONSTRAINT "AQ$_QUEUES_PRIMARY" PRIMARY KEY ("OID") VALIDATE ) TABLESPACE "SYSTEM" PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 STORAGE ( INITIAL 64K FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT) LOGGING
Through this way i am trying to fetch the data.
CString tabledetail="Select utl_raw.cast_to_varchar2("OID"),"EVENTID","NAME",
"TABLE_OBJNO","USAGE","ENABLE_FLAG",
"MAX_RETRIES","RETRY_DELAY","PROPERTIES","RET_TIME","QUEUE_COMMENT",
"SUBSCRIBERS","MEMORY_THRESHOLD","SERVICE_NAME","NETWORK_NAME" from system.TEST";
try
{
pRecordset=m_pConn->Execute(_bstr_t(tabledetail), 0, adCmdText);
}
catch(_com_error pCE)
{
CString error;
error.Format(_T("\n%s Error: %ld\r\n%s\r\n%s\r\n"),(TCHAR*)pCE.Source(),pCE.Error(),(TCHAR*)pCE.Description(),(TCHAR*)pCE.ErrorMessage());
AfxMessageBox(error);
}
Please help me where i am wrong.
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I would look at
MsmVc wrote: "SUBSCRIBERS" "SYS"."AQ$_SUBSCRIBERS"
- Im not sure that has a mapping from Oracle to OLE DB - not sure what you do to get around it -
everything else you specify has raw, number, varchar2 etc which seem ok.
Do a test - remove the
MsmVc wrote: "SUBSCRIBERS"
from the query
MsmVc wrote: CString tabledetail="Select utl_raw.cast_to_varchar2("OID"),"EVENTID","NAME","TABLE_OBJNO","USAGE","ENABLE_FLAG","MAX_RETRIES","RETRY_DELAY","PROPERTIES","RET_TIME",
"QUEUE_COMMENT","SUBSCRIBERS","MEMORY_THRESHOLD","SERVICE_NAME","NETWORK_NAME" from system.TEST";try
and see if it chucks a farley then - if it works, thats the issue !
'g'
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yes you are right.I had check remove the "SUBSCRIBERS" column then it's working fine.But Can you tell me some different way to do that because we can't remove column.I think it's "SUBSCRIBERS" a use define data type.
If you have different idea then plz help me
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pretty sure you cant do anything with Oracle AQ through the OLE DB Layer - you might have to use OCI - you might want to check the Oracle dev site for what the .NET client offers as well
'g'
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thanks for vital information...
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one more problem when data type is LONG RAW.Then i am getting error.
Microsoft OLE DB Provider for Oracle Error: -2147217900
ORA-00997: illegal use of LONG datatype
IDispatch error #3092
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iirc, in Ora 8i and above, LONG RAW is deprecated, and they are a pretty restricted use data type anyway - the closest equivalent is a blob.
You would have to read the Oracle manuals on how to deal with them, I dont think OLE DB Maps them - leastwise a quick look doesnt show anything useful - possibly you might get a variable array of bytes back, up to 2 GB in length
have a look at using TO_LOB to go from a LONG RAW to a BLOB
'g'
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How can i use this?
Wheb i am useing like this
INSERT INTO "SYSTEM"."DEMO" VALUES('6565',0.0,TO_LOB('0001'),5000.0,0.0051,'5665','57');
Then show error.
ORA-00932: inconsistent datatypes: expected - got CHAR
Please help me
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I want to get HWND from process id. Below function return correct HWND in XP but not in Vista and Win7.
How to get HWND in Vista?
HWND CQemuConfig::GetWindowHWND(DWORD dwProcessID)
{
HWND h = ::GetTopWindow(0 );
while ( h )
{
DWORD pid;
DWORD dwTheardId = ::GetWindowThreadProcessId( h,&pid);
if ( pid == dwProcessID)
{
return h;
}
h = ::GetNextWindow( h , GW_HWNDNEXT);
}
return NULL;
}
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| I hope u checked the error code. Величие не Бога может быть недооценена.
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Actually this function returning some handle that is not related to desired window in vista.
I came to know when I pass windows HWND to message box to make it model.
In XP message box is model, but in vista it is modeless So I think HWND is not correct in vista?
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You could try to place and test the code
inside a service, that would be started by user SYSTEM...
(if you know the title or class (discovered by Spy) of your dialog,
you could try the function FindWindow(..) too )Check your definition of Irrationality[ ^]
1 - Avicenna
5 - Hubbard
3 - Own definition
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I want to place the window at top,left corner..
any idea
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Your idea is fully correct:
you need the windows handle
(
Did you try your previous posted context (5 min waiting) with
while (!FindWindow(..) &&
!WaitTimeLimit()) {
Sleep(100);
})Check your definition of Irrationality[ ^]
1 - Avicenna
5 - Hubbard
3 - Own definition
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Could you give answer according to my problem / code?
I print the title of window, in vista I am getting different window title.
It means there are same process id for 2 process.
How to get correct one?
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