Keys. Flush Method
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Processes all the Windows messages currently in the message queue.
public: static void Flush();
public static void Flush ();
static member Flush : unit -> unit
Public Shared Sub Flush ()
Use Flush to wait for the application to process keystrokes and other operating system messages that are in the message queue. This is equivalent to calling Application.DoEvents until there are no more keys to process.
Because there is no managed method to activate another application, you can either use this class within the current application or use native Windows methods, such as
SetForegroundWindow, to force focus on other applications.