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If yes, it's either an NTSTATUS (0xCxxxxxxx) or HRESULT (0x8xxxxxxx). Use the Visual Studio tool err.exe or net helpmsg :
These are STILL_ACTIVE (thread) and STATUS_PENDING (process). Seeing them from GetExitCodeProcess means you called it before the process actually exited. This is a classic race. exit codes windows
In cmd.exe , the exit code of a batch file is the exit code of the last command executed . A batch file that copies a file and then echoes a message will return 0 even if the copy failed, because echo always succeeds. This forces developers to use exit /b %errorlevel% explicitly. If yes, it's either an NTSTATUS (0xCxxxxxxx) or
If your main() throws an uncaught C++ exception, the CRT catches it, calls terminate() , and then ExitProcess(3) . The code 3 means nothing about your logic—it simply signals "CRT abnormal termination." This is a classic race
If yes, it's either an NTSTATUS (0xCxxxxxxx) or HRESULT (0x8xxxxxxx). Use the Visual Studio tool err.exe or net helpmsg :
These are STILL_ACTIVE (thread) and STATUS_PENDING (process). Seeing them from GetExitCodeProcess means you called it before the process actually exited. This is a classic race.
In cmd.exe , the exit code of a batch file is the exit code of the last command executed . A batch file that copies a file and then echoes a message will return 0 even if the copy failed, because echo always succeeds. This forces developers to use exit /b %errorlevel% explicitly.
If your main() throws an uncaught C++ exception, the CRT catches it, calls terminate() , and then ExitProcess(3) . The code 3 means nothing about your logic—it simply signals "CRT abnormal termination."