Adding ProcessBuilder class

This way only this file has to use System.Diagnostics

Password Manager/ProcessBuilder.cs

@@ -0,0 +1,83 @@
+using System.Diagnostics;
+
+namespace Password_Manager
+{
+	public delegate void ProcessSuccess();
+	public delegate void ProcessFailure(Exception e);
+	static class ProcessBuilder
+	{
+		public ProcessSuccess? ProcessFinished;
+		public ProcessFailure? ProcessFailed;
+
+		public static void Run(string procName, string args)
+		{
+			try
+			{
+				Process.Start(procName, args);
+				ProcessFinished?.Invoke();
+			}
+			catch (Exception e)
+			{
+				ProcessFailed?.Invoke(e);
+			}
+
+			ClearDelegate()
+		}
+
+		private void ClearDelegate()
+		{
+			//clear delegate because static
+			if (ProcessFinished != null)
+			{
+				foreach (ProcessSuccess p in ProcessFinished)
+				{
+					ProcessFinished -= p;
+				}
+			}
+			if (ProcessFailed != null)
+			{
+				foreach (ProcessFailure p in ProcessFailed)
+				{
+					ProcessFailed -= p;
+				}
+			}
+		}
+		
+		public static string? GetOutput(string procName, string args)
+		{
+			try
+			{
+				Process proc = new Process()
+				{
+					StartInfo = new ProcessStartInfo
+					{
+						FileName = procName,
+						Arguments = args,
+						UseShellExecute = false,
+						RedirectStandardOutput = true;
+						CreateNoWindow = true;
+					}
+				};
+
+				proc.Start();
+
+				StringBuilder builder = new StringBuilder();
+				while (!proc.StandardOutput.EndOfStream)
+				{
+					builder.Append(proc.StandardOutput.ReadLine());
+				}
+
+				ProcessFinished?.Invoke();
+				return builder.ToString();
+			} catch (Exception e)
+			{
+                MessageBox.Show(ex.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
+				ProcessFailed.Invoke(e);
+			}
+
+			ClearDelegate();
+			
+			return null;
+		}
+	}
+}