VB.NET使用ProcessName

Question

我創建了一個程序，該程序具有按進程名稱讀取應用程序的功能...

運行Calc.exe時，Label31從CLOSE更改為OPEN，但是當我關閉Calc.exe Label31時，不想從OPEN更改回CLOSE...。

我的密碼

Private Sub Timer2_Tick(sender As Object, e As EventArgs) Handles Timer2.Tick
Dim myProcess() As Process = System.Diagnostics.Process.GetProcessesByName("calc")
    For Each Read As Process In myProcess
        Label31.Text = "OPEN"
    Next
End Sub

有人可以幫我計算關閉的label31從OPEN變為CLOSE時的計算方式嗎？

Answer 1

如果您要進行輪詢，則只需執行以下操作：

Private Sub Timer2_Tick(sender As Object, e As EventArgs) Handles Timer2.Tick
    Dim myProcess() As Process = System.Diagnostics.Process.GetProcessesByName("calc")
    Label31.Text = If(myProcess.Length > 0, "OPEN", "CLOSED")
End Sub