AsyncWaitHandleWriteSignalled (open)

Returns whether a handle is read signalled in within a specific period. If immediately signalled, returns TRUE, else a promise. That promise that resolves to TRUE when the handle becomes signalled before waituntil, and to FALSE on timeout


LOADLIB "wh::ipc.whlib";

VARIANT FUNCTION AsyncWaitHandleWriteSignalled(INTEGER handle, DATETIME waituntil)


INTEGER handle

handle to wait become read signalled

DATETIME waituntil

Timeout time

Return value


TRUE on immediately signalled, promise otherwise