GetApplicationUserModelId function (appmodel.h)

Gets the application user model ID for the specified process.

Syntax

LONG GetApplicationUserModelId(
 [in] HANDLE hProcess,
 [in, out] UINT32 *applicationUserModelIdLength,
 [out] PWSTR applicationUserModelId
);

Parameters

[in] hProcess

A handle to the process. This handle must have the PROCESS_QUERY_LIMITED_INFORMATION access right. For more info, see Process Security and Access Rights.

[in, out] applicationUserModelIdLength

On input, the size of the applicationUserModelId buffer, in wide characters. On success, the size of the buffer used, including the null terminator.

[out] applicationUserModelId

A pointer to a buffer that receives the application user model ID.

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

#define _UNICODE 1
#define UNICODE 1

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

int ShowUsage();
void ShowProcessApplicationUserModelId(__in const UINT32 pid, __in HANDLE process);

int ShowUsage()
{
 wprintf(L"Usage: GetApplicationUserModelId <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
 {
 ShowProcessApplicationUserModelId(pid, process);
 CloseHandle(process);
 }
 }
 }
 return 0;
}

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

 UINT32 length = 0;
 LONG rc = GetApplicationUserModelId(process, &length, NULL);
 if (rc != ERROR_INSUFFICIENT_BUFFER)
 {
 if (rc == APPMODEL_ERROR_NO_APPLICATION)
 wprintf(L"Desktop application\n");
 else
 wprintf(L"Error %d in GetApplicationUserModelId\n", rc);
 return;
 }

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

 rc = GetApplicationUserModelId(process, &length, fullName);
 if (rc != ERROR_SUCCESS)
 wprintf(L"Error %d retrieving ApplicationUserModelId\n", rc);
 else
 wprintf(L"%s\n", fullName);

 free(fullName);
}

Requirements

See also

GetCurrentApplicationUserModelId

GetPackageFamilyName

GetPackageId

GetPackageInfo

GetPackagePath