C / C++ / MFC

Getting IP Address through WMI

12-Oct-05 7:33

See these two links:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dllproc/base/creating_a_child_process_with_redirected_input_and_output.asp[^]

http://support.microsoft.com/default.aspx?scid=kb;en-us;190351[^]

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

qrverona12-Oct-05 4:23

qrverona

12-Oct-05 4:23

Dear all,
I'm writing a C++ (.NET 2003 with MFC) application that needs to query several data through WMI. I have a problem while accessing to the "IPAddress" data managed by the Win32_NetworkAdapterConfiguration WMI class.

It is stored as a string array, the first Get returns me this information, but I did not found any issue on how to get the array.

bool CMyDoc::GetWMIItemValue( IWbemClassObject *pInstance,
LPCWSTR pItemName,
CStringArray& strArray)
{
VARIANT val;
LONG lFlavour;
HRESULT hGet;
CIMTYPE cimType;

VariantInit(&val);
strArray.RemoveAll();

hGet = pInstance->Get( pItemName,
0,
&val, // val cannot hold the result
&cimType, // returns 2008 = string array
&lFlavour); // returns 0

if (hGet == WBEM_S_NO_ERROR)
{
if (cimType == (CIM_STRING | CIM_FLAG_ARRAY))
{
// val holds 0x2008 too, unusable
// how can I access the array?
}
}

Thank you for you help...

PS: Using C# is a piece of cake, but my application has been developed in C++ and I cannot convert it.

Daniele

Re: Getting IP Address through WMI

David Crow12-Oct-05 6:31

Application getting stuck because of load ?

12-Oct-05 6:31

qrverona wrote:
I have a problem while accessing to the "IPAddress" data managed by the Win32_NetworkAdapterConfiguration WMI class.

I would employ something like:

HRESULT                 hr;
_variant_t              v;
ULONG                   ulReturned;
DWORD                   dwAuthLevel;
IWbemLocator            *pLocator;
IWbemServices           *pService = NULL;
IEnumWbemClassObject    *pEnum = NULL;
IWbemClassObject        *pClass;        
        
hr = CoCreateInstance(CLSID_WbemLocator, 0, CLSCTX_INPROC_SERVER, IID_IWbemLocator, (LPVOID *) &pLocator);
if (S_OK == hr)
{
    hr = pLocator->ConnectServer(_bstr_t(L"root\\cimv2"), NULL, NULL, NULL, NULL, 0, NULL, &pService);
    if (WBEM_S_NO_ERROR == hr)
    {
        hr = CoQueryProxyBlanket(pService, NULL, NULL, NULL, &dwAuthLevel, NULL, NULL, NULL);
        hr = CoSetProxyBlanket(pService, 
                               RPC_C_AUTHN_DEFAULT, 
                               RPC_C_AUTHZ_NONE, 
                               NULL, 
                               dwAuthLevel, 
                               RPC_C_IMP_LEVEL_IMPERSONATE, 
                               NULL, 
                               EOAC_NONE);
 
        hr = pService->CreateInstanceEnum(_bstr_t("Win32_NetworkAdapterConfiguration"), 
                                          WBEM_FLAG_RETURN_IMMEDIATELY | WBEM_FLAG_FORWARD_ONLY, 
                                          NULL, 
                                          &pEnum);
        if (WBEM_S_NO_ERROR == hr)
        {
            do
            {
                hr = pEnum->Next(WBEM_INFINITE, 1, &pClass, &ulReturned);
                if (WBEM_S_NO_ERROR == hr)
                {
                    hr = pClass->Get(L"IPAddress", 0, &v, NULL, NULL);
                    if (v.vt != VT_NULL)
                        ...
 
                    pClass->Release();
                }
            } while (WBEM_S_NO_ERROR == hr);
        }
    }
}

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Amarelia12-Oct-05 3:25

12-Oct-05 3:25

Hi I have a simple dialog based MFC application which I have developed using CBannerStatic project available here at "http://www.codeproject.com/staticctrl/bannerstatic2.asp#xxxx"

Here when I make my font size very big, the banner gets very slow and stucks sometime when I have more load on my CPU by some other application running

Is there a way to give some amount of CPU to only my Banner application or is there a way to assign some value through which Banner doesn't gets affected because other running application ?

Thanking you.

Amarelia Maehsh
Gujarat
India

John M. Drescher12-Oct-05 5:08

John M. Drescher

12-Oct-05 5:08

Please quit posting the same question in the wrong forum multiple times.

John

Bob Stanneveld12-Oct-05 6:01

Bob Stanneveld

12-Oct-05 6:01

Hello,

You could try the following:

::SetPriorityClass(::GetCurrentProcess(), ABOVE_NORMAL_PRIORITY_CLASS);

IMHO you should not change your process priority for reasons like this. If the user has a high CPU load, he or she is doing something important most of the time. The user would get very annoyed if your banner will consume more CPU than the users 'important' processes.

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Amarelia12-Oct-05 22:17

12-Oct-05 22:17

Hi Bob

Thankx a lot to give kind attention to my question

I tried but it gives error at compile time if i use ABOVE_NORMAL_PRIORITY_CLASS flag, Instead if i use HIGH_PRIORITY_CLASS it works but it takes all the CPU and takes too long time to execute other processes....

What seems to be the reason that it gives error for ABOVE_NORMAL_PRIORITY_CLASS ? The error is :

"error C2065: 'ABOVE_NORMAL_PRIORITY_CLASS' : undeclared identifier"

Any idea what to do ?

Thankx

Amarelia Maehsh
Gujarat
India

David Crow13-Oct-05 3:05

13-Oct-05 3:05

Amarelia wrote:
What seems to be the reason that it gives error for ABOVE_NORMAL_PRIORITY_CLASS ? The error is :

"error C2065: 'ABOVE_NORMAL_PRIORITY_CLASS' : undeclared identifier"

Are you on a Windows 2000 or XP machine? What is the value of _WIN32_WINNT?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Amarelia13-Oct-05 3:09

13-Oct-05 3:09

Hi David

I am using Windows 2000

And not getting what do you mean by ,"What is the value of _WIN#@_WINNT?"

Thankx

Amarelia Maehsh
Gujarat
India

David Crow13-Oct-05 3:38

Application getting stuck because of load ?

13-Oct-05 3:38

Amarelia wrote:
And not getting what do you mean by ,"What is the value of _WIN#@_WINNT?"

I was going to suggest that it had to be greater than or equal to a certain value, but after looking in winbase.h, I see that is not the issue. I can only suggest that you verify the spelling of ABOVE_NORMAL_PRIORITY_CLASS.

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Amarelia12-Oct-05 3:21

Application getting stuck because of load ?

12-Oct-05 3:21

Hi

Amarelia Maehsh
Gujarat
India

Amarelia12-Oct-05 3:21

CBitmapButton Transparency

12-Oct-05 3:21

Hi

Amarelia Maehsh
Gujarat
India

NewVCbie12-Oct-05 3:18

NewVCbie

12-Oct-05 3:18

Good day,

How can I make transparency in CBitmapButton. I dont want to display image part with color RGB(255,0,255).

Thanks.

WebBrowser Problem, Please.

GhostEx12-Oct-05 2:47

GhostEx

12-Oct-05 2:47

hi, everybody,

I create a WebBrowser control in a dialog, then i get a pointer to CWebBrowser2 which is named m_pBrowser, after that i use the "navigate2" to open some site. As the pages of the site contains many pictures, so the m_pBrowser alloc memory itself to get and display the HTML page.

but , after i use "m_pBrowser->DestroyWindow()" and "delete m_pBrowser" to destroy the control, m_pBrowser disappeared but the memory which was alloced by itself could not be freed. And the sizeof these memories is large, always larger than 20M.

How could i free these memories manual? Confused | :confused:

Thank all of you very much!!!

PS: i used the codes blow to create a WebBrowser control :
m_pBrowser=new CWebBrowser2;
m_pBrowser->Create("",WS_CHILD|WS_VISIBLE,rt,this,9000);
m_pBrowser->SetRegisterAsBrowser(FALSE);
m_pBrowser->SetSilent(TRUE);
m_pBrowser->ShowWindow(SW_SHOW);

Terminate sqlservr.exe process

sirtimid12-Oct-05 2:23

sirtimid

12-Oct-05 2:23

Hello everybody,
Does anyone know ho can I terminate the sqlservr.exe process?
I tried the TerminateProcess() but it didn't work and I guess that it must be the child processes or threads that might be running with it.
So how can I terminate all the tree process?

Thanks in Advance!

sirtimid

David Crow12-Oct-05 3:12

12-Oct-05 3:12

sirtimid wrote:
I tried the TerminateProcess() but it didn't work...

Which means nothing unless you tell us why it failed? What does GetLastError() return?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

sirtimid12-Oct-05 22:02

sirtimid

12-Oct-05 22:02

This is the process that the MSSQLSERVER runs.

It returned 6 (The handle is invalid. - ERROR_INVALID_HANDLE)
I got the Process ID as shown below:
HANDLE hProcessSnap = NULL;
BOOL bRet = FALSE;
PROCESSENTRY32 pe32 = {0};

hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
if (hProcessSnap == INVALID_HANDLE_VALUE)
return FALSE;

pe32.dwSize = sizeof(PROCESSENTRY32);

if (Process32First(hProcessSnap, &pe32)) {
DWORD dwPriorityClass,excd;
BOOL bGotModule = FALSE;
bool found = false;
MODULEENTRY32 me32 = {0};
do {
HANDLE hProcess;
hProcess = OpenProcess (PROCESS_ALL_ACCESS | PROCESS_TERMINATE | PROCESS_QUERY_INFORMATION,
FALSE, pe32.th32ProcessID);
if(!memcmp(pe32.szExeFile,"sqlservr.exe",12)) {
bGotModule = GetExitCodeProcess(hProcess, &excd);
TerminateProcess(hProcess, excd);
err = GetLastError();
found = true;
} else {
found = false;
}
CloseHandle (hProcess);
} while (Process32Next(hProcessSnap, &pe32) && !found);
}
CloseHandle (hProcessSnap);

David Crow13-Oct-05 3:02

13-Oct-05 3:02

sirtimid wrote:
hProcess = OpenProcess (PROCESS_ALL_ACCESS | PROCESS_TERMINATE | PROCESS_QUERY_INFORMATION,
FALSE, pe32.th32ProcessID);
if(!memcmp(pe32.szExeFile,"sqlservr.exe",12)) {

Shouldn't you be checking the return value from OpenProcess() before attempting to call memcmp()?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Increase Text speed in CBanner class ?

Tim Smith12-Oct-05 3:54

Tim Smith

12-Oct-05 3:54

It is probably a service that can be shutdown using the service manager.

Tim Smith

I'm going to patent thought. I have yet to see any prior art.

Amarelia12-Oct-05 2:13

Re: Increase Text speed in CBanner class ?

12-Oct-05 2:13

Hi
I have used the BannerTester project given at

http://www.codeproject.com/staticctrl/bannerstatic2.asp

Here when I increase the size of the Font, it becomes very very slow speed.

I want to increase the speed of the text...is there any idea how to achieve it ?

Regards,

Mahesh

Amarelia Maehsh
Gujarat
India

Cedric Moonen12-Oct-05 2:16

Cedric Moonen

12-Oct-05 2:16

Why don't you post the question on the 'forum' below the article ?

Re: Increase Text speed in CBanner class ?

Amarelia12-Oct-05 2:17