WSASetEvent function (winsock2.h)

The WSASetEvent function sets the state of the specified event object to signaled.

Syntax

BOOL WSAAPI WSASetEvent(
  [in] WSAEVENT hEvent
);

[in] hEvent

Handle that identifies an open event object.

If the function succeeds, the return value is TRUE.

If the function fails, the return value is FALSE. To get extended error information, call WSAGetLastError.

Error code	Meaning
WSANOTINITIALISED	A successful WSAStartup call must occur before using this function.
WSAENETDOWN	The network subsystem has failed.
WSAEINPROGRESS	A blocking Windows Sockets 1.1 call is in progress, or the service provider is still processing a callback function.
WSA_INVALID_HANDLE	The hEvent parameter is not a valid event object handle.

The WSASetEvent function sets the state of the event object to be signaled.

Windows Phone 8: This function is supported for Windows Phone Store apps on Windows Phone 8 and later.

Windows 8.1 and Windows Server 2012 R2: This function is supported for Windows Store apps on Windows 8.1, Windows Server 2012 R2, and later.

Requirement	Value
Minimum supported client	Windows 8.1, Windows Vista [desktop apps \| UWP apps]
Minimum supported server	Windows Server 2003 [desktop apps \| UWP apps]
Target Platform	Windows
Header	winsock2.h
Library	Ws2_32.lib
DLL	Ws2_32.dll