使用 C++ 将操作分组到任务中

在授权管理器中，任务是应用程序用户需要完成的高级操作。 任务由操作组成，这些操作是应用程序的低级别函数和方法。 然后，将任务分配给那些必须执行该任务的角色。 任务由 IAzTask 对象表示。 有关操作和任务的详细信息，请参阅 操作和任务。

以下示例演示如何对操作进行分组以创建任务。 该示例假定驱动器 C 根目录中有一个名为 MyStore.xml 的现有 XML 策略存储，此存储包含名为 Expense 的应用程序，并且此应用程序包含主题 定义 C++ 中的操作。

#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0502
#endif
#pragma comment(lib, "duser.lib")

#include <windows.h>
#include <stdio.h>
#include <azroles.h>
#include <objbase.h>

void main(void){
    IAzAuthorizationStore* pStore = NULL;
    IAzApplication* pApp = NULL;
    IAzTask* pTask = NULL;
    HRESULT hr;
    void MyHandleError(char *s);
    BSTR storeName = NULL;
    BSTR appName = NULL;
    BSTR taskName = NULL;
    BSTR opName = NULL;
    
    //  Initialize COM.
    hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not initialize COM.");

    //  Create the AzAuthorizationStore object.
    hr = CoCreateInstance(
   /*"b2bcff59-a757-4b0b-a1bc-ea69981da69e"*/
         __uuidof(AzAuthorizationStore),
         NULL,
         CLSCTX_ALL,
   /*"edbd9ca9-9b82-4f6a-9e8b-98301e450f14"*/
         __uuidof(IAzAuthorizationStore),
         (void**)&pStore);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not create AzAuthorizationStore object.");
    
    //  Create null VARIANT for parameters.
    VARIANT myVar; 
    VariantInit(&myVar);

    //  Allocate a string for the name of the store.
    if(!(storeName = SysAllocString(L"msxml://c:\\MyStore.xml")))
        MyHandleError("Could not allocate string.");
    
    //  Initialize the store.
    hr = pStore->Initialize(AZ_AZSTORE_FLAG_MANAGE_STORE_ONLY,
  storeName, myVar);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not initialize store.");

    //  Create an application object.
    if (!(appName = SysAllocString(L"Expense")))
        MyHandleError("Could not allocate application name string.");
    hr = pStore->OpenApplication(appName, myVar, &pApp);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not open application.");

    //  Create a task object.
    if (!(taskName = SysAllocString(L"Submit Expense")))
        MyHandleError("Could not allocate task name string.");
    hr = pApp->CreateTask(taskName, myVar, &pTask);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not create task.");

    //  Add operations to the task.
    if (!(opName = SysAllocString(L"RetrieveForm")))
        MyHandleError("Could not allocate operation name string.");
    hr = pTask->AddOperation(opName, myVar);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not add 1st operation to the task.");
    SysFreeString(opName);

    if (!(opName = SysAllocString(L"EnqueRequest")))
        MyHandleError("Could not allocate operation name string.");
    hr = pTask->AddOperation(opName, myVar);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not add 2nd operation to the task.");
    SysFreeString(opName);

    if (!(opName = SysAllocString(L"UseFormControl")))
        MyHandleError("Could not allocate operation name string.");
    hr = pTask->AddOperation(opName, myVar);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not add 3rd operation to the task.");
    SysFreeString(opName);

    //  Save information to the store.
    hr = pTask->Submit(0, myVar);
    if (!(SUCCEEDED(hr)))
        MyHandleError("Could not save task data to the store.");

    //  Clean up resources.
    pStore->Release();
    pApp->Release();
    pTask->Release();
    SysFreeString(storeName);
    SysFreeString(appName);
    VariantClear(&myVar);
    CoUninitialize();
}

void MyHandleError(char *s)
{
    printf("An error occurred in running the program.\n");
    printf("%s\n",s);
    printf("Error number %x\n.",GetLastError());
    printf("Program terminating.\n");
    exit(1);
}