add option to not show error message

AssetStudioGUI/AssetStudioGUIForm.cs

@@ -85,6 +85,8 @@ partial class AssetStudioGUIForm : Form
         private string openDirectoryBackup = string.Empty;
         private string saveDirectoryBackup = string.Empty;
 
+        private GUILogger logger;
+
         [DllImport("gdi32.dll")]
         private static extern IntPtr AddFontMemResourceEx(IntPtr pbFont, uint cbFont, IntPtr pdv, [In] ref uint pcFonts);
 
@@ -100,7 +102,8 @@ public AssetStudioGUIForm()
             enablePreview.Checked = Properties.Settings.Default.enablePreview;
             FMODinit();
 
-            Logger.Default = new GUILogger(StatusStripUpdate);
+            logger = new GUILogger(StatusStripUpdate);
+            Logger.Default = logger;
             Progress.Default = new GUIProgress(SetProgressBarValue);
             Studio.StatusStripUpdate = StatusStripUpdate;
         }
@@ -2036,6 +2039,11 @@ private void tabControl2_SelectedIndexChanged(object sender, EventArgs e)
             }
         }
 
+        private void toolStripMenuItem15_Click(object sender, EventArgs e)
+        {
+            logger.ShowErrorMessage = toolStripMenuItem15.Checked;
+        }
+
         private void glControl1_MouseWheel(object sender, MouseEventArgs e)
         {
             if (glControl1.Visible)

AssetStudioGUI/GUILogger.cs

@@ -6,6 +6,7 @@ namespace AssetStudioGUI
 {
     class GUILogger : ILogger
     {
+        public bool ShowErrorMessage = true;
         private Action<string> action;
 
         public GUILogger(Action<string> action)
@@ -18,7 +19,10 @@ public void Log(LoggerEvent loggerEvent, string message)
             switch (loggerEvent)
             {
                 case LoggerEvent.Error:
-                    MessageBox.Show(message);
+                    if (ShowErrorMessage)
+                    {
+                        MessageBox.Show(message);
+                    }
                     break;
                 default:
                     action(message);