Windows / Win32

Win32

Win32 API error codes are possibly the most known code structure in Windows. These codes are used for various modules including the user-mode kernel modules (ntdll.dll).

All Windows error code should fit under 16-bit numbers between 0x0 (0) to 0xffff (65,535). However, some error codes may use a 32-bit number space with extended fields (i.e., HRESULT).