GetPackageFullNameFromToken function (appmodel.h)

Gets the package full name for the specified token.

Syntax

LONG GetPackageFullNameFromToken(
 [in] HANDLE token,
 [in, out] UINT32 *packageFullNameLength,
 [out, optional] PWSTR packageFullName
);

Parameters

[in] token

A token that contains the package identity.

[in, out] packageFullNameLength

On input, the size of the packageFullName buffer, in characters. On output, the size of the package full name returned, in characters, including the null terminator.

[out, optional] packageFullName

The package full name.

Return value

If the function succeeds it returns ERROR_SUCCESS. Otherwise, the function returns an error code. The possible error codes include the following.

Remarks

For info about string size limits, see Identity constants.

Examples

/***************************************************
* *
* Copyright (C) Microsoft. All rights reserved. *
* *
***************************************************/

#define _UNICODE 1
#define UNICODE 1

#include <Windows.h>
#include <appmodel.h>
#include <appmodelp.h>
#include <malloc.h>
#include <stdlib.h>
#include <stdio.h>

int ShowUsage();
void ShowProcessPackageFullName(__in const UINT32 pid, __in HANDLE token);

int ShowUsage()
{
 wprintf(L"Usage: GetPackageFullNameFromToken <pid> [<pid>...]\n");
 return 1;
}

int __cdecl wmain(__in int argc, __in_ecount(argc) WCHAR * argv[])
{
 if (argc <= 1)
 return ShowUsage();

 for (int i=1; i<argc; ++i)
 {
 UINT32 pid = wcstoul(argv[i], NULL, 10);
 if (pid > 0)
 {
 HANDLE process = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, pid);
 if (process == NULL)
 wprintf(L"Error %d in OpenProcess (pid=%u)\n", GetLastError(), pid);
 else
 {
 HANDLE token;
 if (!OpenProcessToken(process, TOKEN_QUERY, &token))
 wprintf(L"Error %d in OpenProcessToken (pid=%u)\n", GetLastError(), pid);
 else
 {
 ShowProcessPackageFullName(pid, token);
 CloseHandle(token);
 }
 CloseHandle(process);
 }
 }
 }
 return 0;
}

void ShowProcessPackageFullName(__in const UINT32 pid, __in HANDLE token)
{
 wprintf(L"Process %u (token=%p)\n", pid, token);

 UINT32 length = 0;
 LONG rc = GetPackageFullNameFromToken(token, &length, NULL);
 if (rc != ERROR_INSUFFICIENT_BUFFER)
 {
 if (rc == APPMODEL_ERROR_NO_PACKAGE)
 wprintf(L"Token has no package identity\n");
 else
 wprintf(L"Error %d in GetPackageFullNameFromToken\n", rc);
 return;
 }

 PWSTR fullName = (PWSTR) malloc(length * sizeof(*fullName));
 if (fullName == NULL)
 {
 wprintf(L"Error allocating memory\n");
 return;
 }

 rc = GetPackageFullNameFromToken(token, &length, fullName);
 if (rc != ERROR_SUCCESS)
 wprintf(L"Error %d retrieving PackageFullName\n", rc);
 else
 wprintf(L"%s\n", fullName);

 free(fullName);
}

Requirements