Variable handleOnce

Type Declaration

• • <TArgs extends any[] = any[], TResult = any>(
        fn: IpcHandler<TArgs, TResult, IpcEventMap>,
    ): CloneableChannel<HandlerDef<TArgs, TResult, IpcEventMap>, TArgs, TResult>

  • Register a one-shot request/response channel via ipcMain.handleOnce.

    Scoped to the process, not a window: ipcMain is global, so the first caller from any window consumes the handler and every later invoke — including from other windows — rejects with "No handler registered". Use handle for anything a multi-window app can call more than once.

    Type Parameters

    • TArgs extends any[] = any[]
    • TResult = any

    Parameters

    • fn: IpcHandler<TArgs, TResult, IpcEventMap>

    Returns CloneableChannel<HandlerDef<TArgs, TResult, IpcEventMap>, TArgs, TResult>