Ottieni il nome dell'applicazione attiva corrente

Question

Desidero ottenere il nome dell'applicazione correntemente attiva quando il timer si arresta. Dopo la registrazione di 20 secondi dovrebbe mostrarmi il nome attuale dell'applicazione attiva. Ho provato un po 'di codice. Puoi vedere qui. Ma non mi mostra niente dopo che il timer si ferma.

codice C#:

public class Win32wrapper 
{ 
    private System.Timers.Timer pingTimer; 
    private Timer recordTimer; 

    private List<HarvestApp.ProcessInformation> ProcessList = new List<HarvestApp.ProcessInformation>(); 

    [DllImport("user32.dll")] 
    public static extern IntPtr GetForegroundWindow(); 

    [DllImport("user32.dll")] 
    public static extern IntPtr GetWindowThreadProcessId(IntPtr hWnd, out uint processId); 

    private DateTime recordStartTime; 

    public void startTimer(int pingTimerValue=5000, int recordTimerValue=20000) 
    { 

     pingTimer = new System.Timers.Timer(pingTimerValue); 
     pingTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent); 
     pingTimer.Interval = pingTimerValue; 
     pingTimer.Enabled = true; 

     recordTimer = new Timer(recordTimerValue); 
     recordTimer.Elapsed += new ElapsedEventHandler(OnRecordEvent); 
     recordTimer.Interval = recordTimerValue; 
     recordTimer.Enabled = true; 

     recordStartTime = DateTime.Now; 
    } 

    private void OnTimedEvent(object source, ElapsedEventArgs e) 
    { 
     Console.WriteLine("The Ping Elapsed event was raised at {0}", e.SignalTime); 


     //Record through win32dll the application foreground caption 

     GetActiveFileNameTitle(); 

     //Store into collection object, Push into ArrayList, Push into process id 
    } 


    public String GetActiveFileNameTitle() 
    { 
     IntPtr hWnd = GetForegroundWindow(); 
     uint processId; 
     GetWindowThreadProcessId(hWnd, out processId); 
     Process p = Process.GetProcessById((int)processId); 
     //p.MainModule.FileName.Dump(); 
     return p.ProcessName; 
    } 

     private void OnRecordEvent(object source, ElapsedEventArgs e) 
    { 
     Console.WriteLine("The Record Elapsed event was raised at {0}", e.SignalTime); 

     ProcessInformation procTemp = GetMaxRunTimeForApplicationsBetween(recordStartTime, DateTime.Now); 
     Harvest_TimeSheetEntry tempEntry = new Harvest_TimeSheetEntry(procTemp, recordStartTime, DateTime.Now); 

     //Add to the list of the specific day Only not the entire 
     // Globals._globalController.harvestManager._TIMESHEETENTRYDICTIONARY[recordStartTime.Date].Add(tempEntry); 


     Globals._globalController.getDayViewWindow.Dispatcher.BeginInvoke(new Action(delegate() 
     { 
      Globals._globalController.getDayViewWindow.addHarvestEntrytoView(tempEntry); 
     })); 
     //Clean Out the ProcessList? 

     recordStartTime = DateTime.Now; 
    } 


    public void stopTimer() 
    { 
     pingTimer.Stop(); 
     recordTimer.Stop(); 
    } 

Answer 1

Edit: Titolo è missleading.

Guarda il tuo codice:

private void OnTimedEvent(object source, ElapsedEventArgs e) 
{ 
    Console.WriteLine("The Ping Elapsed event was raised at {0}", e.SignalTime); 

    //Record through win32dll the application foreground caption 

    // You miss the output or usage of the return value here. 
    GetActiveFileNameTitle(); 
    // Try 
    var procName = GetActiveFileNameTitle(); 
    Console.WriteLine(procName); 

    //Store into collection object, Push into ArrayList, Push into process id 
} 

esempio di lavoro:

[DllImport("user32.dll")] 
public static extern IntPtr GetForegroundWindow(); 

per ottenere la finestra in primo piano e:

[DllImport("user32.dll", SetLastError = true)] 
public static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId); 

Per determinare il ProcessID. Con ProcessID è possibile ottenere il nome del processo. Con la classe processo: http://msdn.microsoft.com/de-de/library/system.diagnostics.process.mainmodule.aspx

class Program 
{ 
    static void Main(string[] args) 
    { 
     Thread.Sleep(5000); // Test it with 5 Seconds, set a window to foreground, and you see it works! 
     IntPtr hWnd = GetForegroundWindow(); 
     uint procId = 0; 
     GetWindowThreadProcessId(hWnd, out procId); 
     var proc = Process.GetProcessById((int)procId); 
     Console.WriteLine(proc.MainModule); 
     Console.ReadKey(); 
    } 

    [DllImport("user32.dll")] 
    public static extern IntPtr GetForegroundWindow(); 

    [DllImport("user32.dll", SetLastError = true)] 
    public static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId); 
}