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Implementación de Planes Nacionales de Adaptación

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{steamAPI Unregistercallresult}

What is steamAPI Unregistercallresult and how to use it?

SteamAPI Unregistercallresult is a function in the Steamworks API, which is a set of tools and services that enable game developers to integrate Steam features into their games. The Steamworks API allows games to communicate with the Steam client and access various functions such as achievements, leaderboards, multiplayer, etc.


The steamAPI Unregistercallresult function is used to unregister a callback function that was previously registered with the steamAPI Registercallresult function. The callback function is called when an asynchronous operation, such as a network request or a file download, is completed. The callback function receives the result of the operation and can perform any necessary actions based on it.

The steamAPI Unregistercallresult function takes two parameters: a pointer to a CCallbackBase object, which contains information about the callback function, and a SteamAPICall_t handle, which identifies the asynchronous operation. The function unregisters the callback function from the specified operation and frees any memory associated with it.

Why use steamAPI Unregistercallresult?

The steamAPI Unregistercallresult function is useful for avoiding memory leaks and ensuring that the callback function is only called once for each operation. If the callback function is not unregistered, it will remain in memory and may be called again if the same operation is repeated. This can cause unexpected behavior and errors in the game.

For example, suppose that a game uses the steamAPI Registercallresult function to register a callback function that unlocks an achievement when a file download is completed. If the game does not use the steamAPI Unregistercallresult function to unregister the callback function after the first download, then the callback function will be called again every time the same file is downloaded. This will result in unlocking the same achievement multiple times, which may not be desired by the game developer or the player.

How to use steamAPI Unregistercallresult?

The steamAPI Unregistercallresult function should be called after the callback function has been executed and has performed all the necessary actions based on the result of the operation. The function should be called with the same parameters that were used to register the callback function with the steamAPI Registercallresult function.

Here is an example of how to use the steamAPI Unregistercallresult function in C++:

// Define a class that inherits from CCallbackBase class MyCallback : public CCallbackBase public: // Override GetCallbackSizeBytes to return the size of the result structure virtual int GetCallbackSizeBytes() return sizeof(MyResult_t); // Define a method that will be called when the operation is completed void OnOperationCompleted(MyResult_t *pResult, bool bIOFailure) // Check if the operation was successful if (pResult->m_eResult == k_EResultOK && !bIOFailure) // Perform any actions based on the result // For example, unlock an achievement SteamUserStats()->SetAchievement("MY_ACHIEVEMENT"); SteamUserStats()->StoreStats(); // Unregister the callback function SteamAPI_UnregisterCallResult(this, m_hAPICall); // Store the handle of the asynchronous operation SteamAPICall_t m_hAPICall; ; // Create an instance of the callback class MyCallback g_MyCallback; // Register the callback function with an asynchronous operation // For example, initiate a file download g_MyCallback.m_hAPICall = SteamRemoteStorage()->UGCDownload(hContent, 0); SteamAPI_RegisterCallResult(&g_MyCallback, g_MyCallback.m_hAPICall);

For more information about the Steamworks API and its functions, please refer to [the official documentation] or [the Rust API reference].

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