C / C++ / MFC

18-Aug-08 19:08

Hi

I am geting error like this..Plz help me to solve that..

[code]

error C2011: '_STORAGE_BUS_TYPE' : 'enum' type redefinition
[/code]

Jijo.Raj18-Aug-08 19:44

Jijo.Raj

18-Aug-08 19:44

Reason is here[^]. Check whether you've defined your _STORAGE_BUS_TYPE more than once.

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

vcprog18-Aug-08 20:06

18-Aug-08 20:06

thax's problem solve.Just i comment it..

But i have found some more error..

[code]
error C2061: syntax error : identifier 'PSTORAGE_DEVICE_DESCRIPTOR'
error C2511: 'bool CMy4Dlg::GetDisksProperty(HANDLE,PSTORAGE_DEVICE_DESCRIPTOR)' : overloaded member function not found in 'CMy4Dlg'
error C2061: syntax error : identifier 'PSTORAGE_DEVICE_DESCRIPTOR'
[/code]
so plz help me

Jijo.Raj18-Aug-08 21:42

Jijo.Raj

18-Aug-08 21:42

From MSDN[^], i found STORAGE_DEVICE_DESCRIPTOR is declared in header file - Ntddstor.h. So check whether you've included it or not.

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

vcprog18-Aug-08 22:23

Re: error C2011 [modified]

18-Aug-08 22:23

yes i include Ntddstor.h..

Jijo.Raj18-Aug-08 22:31

Jijo.Raj

18-Aug-08 22:31

vcprog wrote:
error C2511: 'bool CMy4Dlg::GetDisksProperty(HANDLE,PSTORAGE_DEVICE_DESCRIPTOR)' : overloaded member function not found in 'CMy4Dlg'

Check whether the signature of CMy4Dlg::GetDisksProperty() is exactly same in header and in cpp file?

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

modified on Tuesday, August 19, 2008 5:20 AM

How to pass variables of type RecordSet from VB ocx to VC++ program???

savitri18-Aug-08 18:56

savitri

18-Aug-08 18:56

Hello everyone,
I am inserting vb activex control in VC program.In VB ocx program i am passing variables of type recordset from database.when i am inserting this ocx into my VC program those recordset datatypes are converting as LPDISPATCH* type. and my variables of type CRecordset. it is giving error like this:
C:\Program Files\Microsoft Visual Studio\My Projects\RecordSetPgm\RecordSetPgmDlg.cpp(255) : error C2664: 'Processattendacne' : cannot convert parameter 1 from 'class CRecordset' to 'struct IDispatch ** '
No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called
VB ocx Code is like this:
void C_UserControl1::Processattendacne(LPDISPATCH* rs, LPDISPATCH* rs1, BOOL* blnprocess)
{
static BYTE parms[] =
VTS_PDISPATCH VTS_PDISPATCH VTS_PBOOL;
InvokeHelper(0x60030000, DISPATCH_METHOD, VT_EMPTY, NULL, parms,
rs, rs1, blnprocess);
}

And VC++ Code is like this:
database.Open(NULL,false,false,sDsn); // Open Clients.MDB
CRecordset recset( &database );
SqlString="SELECT field1 FROM sample";
recset.Open(CRecordset::dynamic,SqlString,CRecordset::readOnly);
CRecordset recset1(&database);
Client= "SELECT field2 FROM sample";
recset1.Open(CRecordset::dynamic,Client,CRecordset::readOnly);
m_UserControl.Processattendacne(recset,recset1,bstr);
database.Close();
please tell me what type of parameters i have to take and how should i declare those please tell me...please Help me out..i am trying this but i am not getting...please give me some suggestions..

Thanks in Advance,
Savitri

Re: How to pass variables of type RecordSet from VB ocx to VC++ program???

User 21559718-Aug-08 19:06

Re: How to pass variables of type RecordSet from VB ocx to VC++ program???

18-Aug-08 19:06

I maybe wrong but you may need to use ADO instead of CRecordet. The VB ActiveX control you are using is expecting an IDispatch compatible interface as parameters.
Some ADO examples are listed below -
MSDN - ADO Code Examples in Visual C++[^]
Codeproject - Database - ADO[^]

Sohail

modified 21-Apr-21 21:01pm.

savitri18-Aug-08 19:35

savitri

18-Aug-08 19:35

hii
It is only with simple program but i am passing variable to activeX control to do the operations like adding ,deleting etc..It is not taking of type recodeset directly..so tell me what data type i have to use..

please see my code..I pasted my code in my first message please will u tell me how to do this ..

HELP ME OUT..
Thanks in advance,
savitri

Re: How to pass variables of type RecordSet from VB ocx to VC++ program???

User 21559718-Aug-08 19:53

Re: How to pass variables of type RecordSet from VB ocx to VC++ program???

18-Aug-08 19:53

CRecordset is an MFC class which is not IDispatch compatible. VB ActiveX method that you are using, requires an IDispatch interface as parameter. If you use ActiveX Data Object (ADO) instead of CRecordset class then you will be able to pass the object to your VB ActiveX methods. I have included the link to samples in my previous post. These will help you get started.

I hope this helps.

Sohail

modified 21-Apr-21 21:01pm.

savitri18-Aug-08 20:08

savitri

18-Aug-08 20:08

Hii,
If so please tell me how to do the connections and which header files i have to include please..I dont have idea adout ADO..I am using access database.will you tell me about connection and all..i am doing that only ok..
Please help me out...

Thanks in advance,
Savitri

Re: How to pass variables of type RecordSet from VB ocx to VC++ program???

User 21559718-Aug-08 20:20

Re: How to pass variables of type RecordSet from VB ocx to VC++ program???

18-Aug-08 20:20

Please see the links from my previous post. Following might also help Using ADO from VC++[^]

Sohail

modified 21-Apr-21 21:01pm.

David Crow19-Aug-08 3:40

David Crow

19-Aug-08 3:40

Are you allergic to following directions? He's provided you with what you require...twice.

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

USB Information

NewVC++18-Aug-08 18:39

NewVC++

18-Aug-08 18:39

Hi All

I want to develop a USB Small project which show all information about USB Device like USB Device name,drive name and file or folder name.Plz help me..

User 21559718-Aug-08 18:54

18-Aug-08 18:54

You could use WMI to query information about the USB device. Following link will get you started with USB WMI script How Can I Determine Which USB Devices are Connected to a Computer?[^]

Sohail

modified 21-Apr-21 21:01pm.

NewVC++18-Aug-08 19:00

NewVC++

18-Aug-08 19:00

Thx's for help me through link..

But these thing i am geting through link:http://www.codeproject.com/KB/system/HwDetect.aspx[^]

and i want to know drive name..

In this artical it is showing me device name...So plz help me to get drive name..

Plz help me

User 21559718-Aug-08 19:47

18-Aug-08 19:47

OK. So you are using SetupAPI to query USB information. I believe, once you get hold of the device you can use the regular CreateFile, ReadFile, FindFirstFile etc API

Sohail

modified 21-Apr-21 21:01pm.

vcprog18-Aug-08 20:09

18-Aug-08 20:09

can you give me some example..

Plz help me

User 21559718-Aug-08 20:27

18-Aug-08 20:27

Read USB drive[^]

Sohail

modified 21-Apr-21 21:01pm.

vcprog18-Aug-08 21:02

18-Aug-08 21:02

thax's Sohail Kadiwala

it is working..thx's once again..

User 21559718-Aug-08 21:58

18-Aug-08 21:58

Glad I could help.

Sohail

modified 21-Apr-21 21:01pm.

NewVC++19-Aug-08 1:19

NewVC++

19-Aug-08 1:19

i have a problem to add these values in listbox.Problem is that i want to show according data.I mean first i want to show drive name then it's data then other drive name then it's data. Right now it is showing but mixed shoe.Code is here

[code]
DWORD dwDrives=GetLogicalDrives();
if(0==dwDrives)
{
// return FALSE;

}
DWORD dwCount=0;
char chDriveLabel='A';
char szRootpath[5]={0,0,0,0,0};
while(dwDrives !=0)
{
if ((dwDrives & 1) != 0)
{
sprintf(szRootpath,"%c:\\",chDriveLabel);
//removable drive
if(DRIVE_REMOVABLE==GetDriveType(szRootpath))
{
WIN32_FIND_DATA FindFileData;

HANDLE hFind;
//Removable dirve lable

// std::cout <<"Files in " << szRootpath << std::endl;

m_ListCountries.ActivateTopParent();

m_ListCountries.AddString(szRootpath);

AfxMessageBox(szRootpath);

//* represent search all files and directories

szRootpath[3]='*';
hFind=FindFirstFile(szRootpath,&FindFileData);
if (INVALID_HANDLE_VALUE == hFind)
{

// return FALSE;

}
// List all the files in the directory .
do
{
//ignore the sub directories

if (!(FindFileData.dwFileAttributes &

FILE_ATTRIBUTE_DIRECTORY))

{

// std::cout << FindFileData.cFileName << ":";

m_ListCountries.AddString(FindFileData.cFileName);

// m_ListCountries.UpdateData(false);

AfxMessageBox(FindFileData.cFileName);

}
}while (FindNextFile(hFind, &FindFileData) != 0);
FindClose(hFind);

}

}

dwDrives = dwDrives >> 1;//next drive

chDriveLabel++;

}
[/code]

plz help me..

Hamid_RT18-Aug-08 20:22

Hamid_RT

18-Aug-08 20:22

See Enumerate Properties of an Installed Device[^].