From 2d9fb029986e17218272e01ae1c629237e5c204d Mon Sep 17 00:00:00 2001
From: sr55 <sr55.hb@outlook.com>
Date: Wed, 25 Jul 2007 22:16:29 +0000
Subject: [PATCH] WinGui: - User is prevented from trying to launch more than 1
 encode process from frmMain.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@737 b64f7644-9d1e-0410-96f1-a4d463321fa5
---
 win/C#/frmMain.cs | 50 ++++++++++++++++++++++++-----------------------
 1 file changed, 26 insertions(+), 24 deletions(-)

diff --git a/win/C#/frmMain.cs b/win/C#/frmMain.cs
index c66cee0b6..f2471baad 100644
--- a/win/C#/frmMain.cs
+++ b/win/C#/frmMain.cs
@@ -646,6 +646,7 @@ namespace Handbrake
         // Encode / Cancel Buttons
         // Encode Progress Text Handler
         //---------------------------------------------------
+
         Functions.CLI process = new Functions.CLI();
 
         private void btn_encode_Click(object sender, EventArgs e)
@@ -675,38 +676,39 @@ namespace Handbrake
    
         private void procMonitor(object state)
         {
-            
-            hbProc = process.runCli(this, (string)state, true, true, false, true);
+            // Make sure we are not already encoding and if we are then display an error.
+            if (hbProc != null)
+            {
+                MessageBox.Show("Handbrake is already encoding a video!", "Status", MessageBoxButtons.OK, MessageBoxIcon.Warning);
+            }
+            else
+            {
+                hbProc = process.runCli(this, (string)state, true, true, false, true);
 
-            MessageBox.Show("The encode process has now started.", "Status", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
+                MessageBox.Show("The encode process has now started.", "Status", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
 
-            try
-            {
-                Parsing.Parser encode = new Parsing.Parser(hbProc.StandardError.BaseStream);
-                encode.OnEncodeProgress += encode_OnEncodeProgress;
-                while (!encode.EndOfStream)
+                try
                 {
-                    encode.ReadLine();
+                    Parsing.Parser encode = new Parsing.Parser(hbProc.StandardError.BaseStream);
+                    encode.OnEncodeProgress += encode_OnEncodeProgress;
+                    while (!encode.EndOfStream)
+                    {
+                        encode.ReadLine();
+                    }
+
+                    hbProc.WaitForExit();
+                    process.closeCLI();
+                    hbProc = null;
+                }
+                catch (Exception)
+                {
+                    // Do nothing
                 }
 
-                hbProc.WaitForExit();
-                process.closeCLI();
-                hbProc = null;
+                MessageBox.Show("The encode process has now ended.", "Status", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
             }
-            catch (Exception)
-            { 
-                // Do Nothing
-            }
-
-            //TODO: prevent this event from being subscribed more than once
-
-            
-            MessageBox.Show("The encode process has now ended.", "Status", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
         }
 
-
-
-
         private void encode_OnEncodeProgress(object Sender, int CurrentTask, int TaskCount, float PercentComplete, float CurrentFps, float AverageFps, TimeSpan TimeRemaining)
         {
             if (this.InvokeRequired)
-- 
2.40.0