I'm trying to get the current processor speeds/throttlings through CallNtPowerInformation() with the ProcessorInformation input:
SYSTEM_INFO systemInfo;
GetSystemInfo( &systemInfo );
numProcessors = (unsigned char)systemInfo.dwNumberOfProcessors;
powerInformations = new PROCESSOR_POWER_INFORMATION[numProcessors];
long status = CallNtPowerInformation( ProcessorInformation, NULL, 0, powerInformations, numProcessors*sizeof(PROCESSOR_POWER_INFORMATION) );
Unfortunately, status is always equal to STATUS_ACCESS_DENIED. I can't find any documentation on why this would be, can anyone point me to some reasons why I would not be able to get the current processor information?
This is running on Windows 8, on a Surface Pro (using Desktop APIs), and I've tried starting VS2012 with elevated permissions to no effect.
It turns out that if I run this code in a Console application, it works, but if I run it inside of a Metro application, it fails. I will ask a new question on how to execute code like this inside of a windows store app.
Related
We have developed the tools to read the emails from the Domino mailboxes and write those into the separate file in local disk(Its look like a backup). Recently we have created a new domino 9 test environment with our lab. But, our tools not working properly with our new domino work environment. To identify the problem about this issue, I have added some debug logs and it seems to look like the control hanged with the function "NAMELookup2". Here, I have added the code snippet,
DHANDLE hLookup;
char *pLookup;
if (NAMELookup2("Local", 0, 1, "$users", 1, dominoUser, 2, "FullName", &hLookup) == NOERROR) // hunged with this line
{
pLookup = (char *) OSLockObject(hLookup);
}
The same tool working fine with our other test environment. So, I think there is no problem with the code. I suspect that maybe the problem with our new work environment setup creation, or maybe missed to provide some kind permission to the users, or maybe I missed to add the mailboxes somewhere, etc.
Note:
I have run the tool with admin privilege user.
It would be great if anyone gives some direction on this.
Thanks,
See this NAMELookup2 page for reference. The function is declared as:
STATUS LNPUBLIC NAMELookup2(const char far *ServerName, DWORD Flags,
WORD NumNameSpaces, const char far *NameSpaces,
WORD NumNames, const char far *Names,
WORD NumItems, const char far *Items,
DHANDLE far *rethBuffer);
where NumItems is the number of null-terminated item names starting at the Items address. The code snippet in your question is passing a single item name ("FullName"), but is setting NumItems to 2. That is clearly wrong and could explain the hang. NumItems should be 1.
I am also suspicious of the ServerName argument. The documentation recommends passing NULL when you want to do a local lookup. Passing "Local" may be another way to accomplish the same, but you need to change your code in any case. I recommend changing the first argument to NULL.
My goal is to write a c-dll (compiled with MinGW) that is able to search for certain models of USB sticks connected to the computer and deliver the serial number, the vendor ID, the product ID and the drive letter.
I have searched on the internet for several hours know but could not find an approach that works for me.
I am using the Setup Api to get a list of all connected USB devices. For each USB device I get a path that looks like this:
\?\usb#vid_048d&pid_1172#00000020370220#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
From that string I can get the vendor ID, product ID and the serial number I am looking for.
My problem is now to determine the drive letter of the USB drive that is related to this device path.
During my internet research I found the following approach multiple times (for example here http://oroboro.com/usb-serial-number/):
Once the device path is found, the USB drive must be opened by CreateFile. The handle returned by that function can be used to get the device number by function DeviceIOControl with IOCTL_STORAGE_GET_DEVICE_NUMBER.
After that, the CreateFile function could be used to open each drive letter (starting from a:) and try to get the device number the same way like described above. Once the same device number is found again, the relation between device path and drive letter is made.
My Problem is that the IOCTL_STORAGE_GET_DEVICE_NUMBER call is not working. The DeviceIOControl function returns error code 50 which means "The request is not supported".
I am not able to create a link between the device path of a USB stick and the drive letter. I have tried several IOCTL_STORAGE and IOCTL_VOLUME calls but none worked for the USB sticks I tried.
I also read in another Forum that people had problems with the results of the DeviceIOControl function. It was returning the desired result on some PCs while it was making trouble on others.
Is there another way of achieving my goal?
I already had a look into the registry where I can also find the desired data. But again I had the problem to create the connection between device path and drive letter.
I would not like to use the WMI. I have read that it is still not really supported by MinGW.
I have a implementaion for all this with C# where it is really easy to get the desired information, but now I also need one that is created with unmanaged code and can be used to replace a c-dll also included in Delphi projects.
I would appreciate any suggestions for a solution to my problem.
Best regards,
Florian
And here the code if someone is interested. The position with this comment "//HERE IS WHERE I WOULD LIKE TO GET THE DEVICE NUMBER!!!" is where the request of the device number would be used if it would work.
typedef struct ty_TUSB_Device
{
PSP_DEVICE_INTERFACE_DETAIL_DATA deviceDetailData;
char devicePath[300];
}TUSB_Device;
int
GetUSBDevices (TUSB_Device *devList[], int size)
{
HANDLE hHCDev;
HDEVINFO deviceInfo;
SP_DEVICE_INTERFACE_DATA deviceInfoData;
ULONG index;
ULONG requiredLength;
int devCount = 0;
//SP_DEVINFO_DATA DevInfoData;
// Now iterate over host controllers using the new GUID based interface
//
deviceInfo = SetupDiGetClassDevs((LPGUID)&GUID_DEVINTERFACE_USB_DEVICE,
NULL,
NULL,
(DIGCF_PRESENT | DIGCF_DEVICEINTERFACE));
if (deviceInfo != INVALID_HANDLE_VALUE)
{
deviceInfoData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
for (index=0;
SetupDiEnumDeviceInterfaces(deviceInfo,
0,
(LPGUID)&GUID_DEVINTERFACE_USB_DEVICE,
index,
&deviceInfoData);
index++)
{
SetupDiGetDeviceInterfaceDetail(deviceInfo,
&deviceInfoData,
NULL,
0,
&requiredLength,
NULL);
//allocate memory for pointer to TUSB_Device structure
devList[devCount] = malloc(sizeof(TUSB_Device));
devList[devCount]->deviceDetailData = GlobalAlloc(GPTR, requiredLength);
devList[devCount]->deviceDetailData->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
SetupDiGetDeviceInterfaceDetail(deviceInfo,
&deviceInfoData,
devList[devCount]->deviceDetailData,
requiredLength,
&requiredLength,
NULL);
//open the usb device
hHCDev = CreateFile(devList[devCount]->deviceDetailData->DevicePath,
GENERIC_WRITE,
FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
0,
NULL);
// If the handle is valid, then we've successfully found a usb device
//
if (hHCDev != INVALID_HANDLE_VALUE)
{
strncpy(devList[devCount]->devicePath, devList[devCount]->deviceDetailData->DevicePath, sizeof(devList[devCount]->devicePath));
//HERE IS WHERE I WOULD LIKE TO GET THE DEVICE NUMBER!!!
CloseHandle(hHCDev);
devCount++;
}
//GlobalFree(devList[devCount]->deviceDetailData);
}
SetupDiDestroyDeviceInfoList(deviceInfo);
}
return devCount;
}
I found out what my problem was. From what I read on the internet it seems there where other people having the same problems like me, so I will post my solution.
The whole point is that there are obviously different path values one can obtain for a USB device using the SetupApi. All path values can be used to get a handle to that device, but there are obviously differences about what can be done with the handle.
My failure was to use GUID_DEVINTERFACE_USB_DEVICE to list the devices. I found out that when I use GUID_DEVINTERFACE_DISK, I get a different path value that lets me request the device number. That way I am able to get the link to the drive letter.
That path value obtained with GUID_DEVINTERFACE_DISK also contains the serial number but not the vendor and product IDs. But since both path values do contain the serial, it is no problem to get them both and build the relation.
I tested the code with Windows XP, 7 and 8 and it works fine. Only the FileCreate code of the code sample above must be adjusted (replace GENERIC_WRITE by 0). Otherwise Administrator rights or compatibility mode are required.
I did not try to find out what these different GUID values really stand for. Someone with a deeper knowledge in this area could probably provide a better explanation.
Best regards,
Florian
I have created a Windows application for installing features (like SQL server silent installation, vlc and others) in batch where user can select which features to install. Now I want to detect if any of the installation is completed successfully or aborted or did not installed successfully. How can I catch this event in the windows application?
used the following code to launch each set up:
If chkVLC.Checked = True Then
Process.Start("E:\Personal Projects\VS Works\Win App\testLastinstallation\testLastinstallation\testLastinstallation\Executables\vlc-1.1.7-win32-Tatilley.exe")
End If
I tried to do same kind of thing using installationSheild wizard, which seemed very complex to me. That's why I created this windows application which i intend to use as custom action in installationSheild wizard Frown | :(
Can you guys give any solution/example?
using Process.ExitCode, after Process.HasExited. ie: after Loop While Not WaitForExit(1000)
Like this : MSDN - Process.ExitCode
of course, process exit codes vary by application. some return -# for errors, some return #, some return -1/1, some return 0-# = success.
technically/usually 0 = no error.
Application: Connecting to BigQuery using BigQuery APIs for Java
Environment: Eclipse, Windows 7
My application was running fine until last night. I've made no changes (except for restarting my computer) and my code is suddenly giving me this error:
Application name is not set. Call Builder#setApplicationName.
Thankfully I had a tar'd version of my workspace from last night. I ran a folder compare and found the local_db.bin file was different. I deleted the existing local_db.bin file and tried to run the program again. And it worked fine!
Any idea why this might have happened?
Hopefully this will help anyone else who stumbles upon this issue.
Try this to set your application name
Drive service = new Drive.Builder(httpTransport, jsonFactory, null)
.setHttpRequestInitializer(credential)
.setApplicationName("Your app name")
.build();
If you are working with only Firebase Dynamic Links without Android or iOS app
Try this.
builder.setApplicationName(firebaseUtil.getApplicationName());
FirebaseUtil is custom class add keys and application name to this class
FirebaseDynamicLinks.Builder builder = new FirebaseDynamicLinks.Builder(
GoogleNetHttpTransport.newTrustedTransport(), JacksonFactory.getDefaultInstance(), null);
// initialize with api key
FirebaseDynamicLinksRequestInitializer firebaseDynamicLinksRequestInitializer = new FirebaseDynamicLinksRequestInitializer(
firebaseUtil.getFirebaseApiKey());
builder.setFirebaseDynamicLinksRequestInitializer(firebaseDynamicLinksRequestInitializer);
builder.setApplicationName(firebaseUtil.getApplicationName());
// build dynamic links
FirebaseDynamicLinks firebasedynamiclinks = builder.build();
// create Firebase Dynamic Links request
CreateShortDynamicLinkRequest createShortLinkRequest = new CreateShortDynamicLinkRequest();
createShortLinkRequest.setLongDynamicLink(firebaseUtil.getFirebaseUrlPrefix() + "?link=" + urlToShorten);
Suffix suffix = new Suffix();
suffix.setOption(firebaseUtil.getShortSuffixOption());
createShortLinkRequest.setSuffix(suffix);
// request short url
FirebaseDynamicLinks.ShortLinks.Create request = firebasedynamiclinks.shortLinks()
.create(createShortLinkRequest);
CreateShortDynamicLinkResponse createShortDynamicLinkResponse = request.execute();
I am writing a launcher program, and when I go to start the process I get the "The directory name is invalid" error. Here is the code that is launching the process:
Const DEBUG_ROOT = _
"Z:\Kiosk_JC\KioskSignIn.root\KioskSignIn\KioskSignIn\KioskSignIn\bin\Debug"
Dim oKiosk As New System.Diagnostics.Process
oKiosk.StartInfo.UserName = oEnc.Decrypt(Username)
oKiosk.StartInfo.Password = oEnc.DecryptSecure(Password)
oKiosk.StartInfo.Domain = oEnc.Decrypt(Domain)
''// The AddBS function appends a '\' to the passed string if it is not present
oKiosk.StartInfo.WorkingDirectory = AddBS(DEBUG_ROOT)
oKiosk.StartInfo.FileName = "KioskSignIn.exe"
oKiosk.StartInfo.UseShellExecute = False
Dim proc As Process = Nothing
proc = System.Diagnostics.Process.Start(oKiosk.StartInfo)
I saw on another question here that I needed to set the WorkingDirectory (before I started searching I was getting the error). Even though I have this property set, I am still getting the error. Any thoughts?
More info
I should also note that my Z:\ is a on my network. I have a function that resolves a path to UNC. When I ran this function on DEBUG_ROOT, I get the same error.
I tried moving the application to c:\kiosk. Same result. I am logged in as the user I am impersonating, so I have access to all shares and files.
Here is the link, for some reason the URL formating wants to consume all the text after the link is designated:
Referred Post
Mapped drives are per-user. You are likely starting the process with a different user.
Sounds like the process can't see the Z: drive or doesn't have security access. What user context does the app run under? Perhaps the Z: drive is not available in that context.
I got the same error as you do. most likely the user you use to run the process does not have access to specified resource (exe file)
try to move your exe to some other location and/or give your user access rights to the file.