Steamapi Writeminidump [verified] -

pvExceptionInfo (void ): * A pointer targeting the Win32 EXCEPTION_POINTERS structure, which contains the processor context record at the exact moment of failure.

: The .dmp file writes directly to the local disk space inside the application root directory or the dedicated Steam installation cache folder.

When a game crashes, SteamAPI can call WriteMiniDump to save debugging information (stack trace, memory state, etc.) into a .dmp file. This file is often sent back to the developer via Steam's crash reporting system. SteamAPI WriteMiniDump

#include #include #include // Custom exception filter callback LONG WINAPI CustomUnhandledExceptionFilter(struct _EXCEPTION_POINTERS* pExceptionInfo) std::cerr << "A fatal exception occurred. Writing minidump..." << std::endl; // Retrieve the exception code DWORD exceptionCode = pExceptionInfo->ExceptionRecord->ExceptionCode; // Invoke the SteamAPI minidump writer // Passing 0 for buffer lines, but you can pass log lines if tracked SteamAPI_WriteMiniDump(static_cast (exceptionCode), pExceptionInfo, 0); // Tell Windows to terminate the process cleanly after handling return EXCEPTION_EXECUTE_HANDLER; void InitializeCrashReporting() // Ensure SteamAPI is initialized before setting the filter if (SteamAPI_Init()) // Register the crash handler with the Windows OS SetUnhandledExceptionFilter(CustomUnhandledExceptionFilter); int main() InitializeCrashReporting(); // Game loop and logic goes here SteamAPI_Shutdown(); return 0; Use code with caution. Managing and Analyzing the Output

SteamAPI_WriteMiniDump is a critical function provided by the Steamworks SDK that allows game developers to generate crash dumps (minidumps) when a game encounters an unhandled exception. These dumps, when combined with Valve's error reporting infrastructure, provide detailed call stacks, register values, and system information, significantly reducing time-to-fix for stability issues. This paper details the mechanism of WriteMiniDump , its implementation best practices, and the benefits of integrating it into the Steamworks pipeline. 1. Introduction pvExceptionInfo (void ): * A pointer targeting the

The Win32 structured exception code (e.g., 0xC0000005 for Access Violation). pvExceptionInfo void*

Do not call this function arbitrarily. It writes to disk (I/O operation). If you call it every frame, you will kill performance. Call it only during exception handling. This file is often sent back to the

: The game engine encounters a fatal operation. The system redirects thread execution to a registered custom exception translator function.

files, they can see the exact line of code that failed, even if the crash happened on a computer halfway across the world. Stack Overflow A Warning on Stability