WIP bare-bones fix for #4555

Author: Andrew Mansell

Rubberduck.Core/Settings/GeneralSettings.cs

@@ -18,6 +18,7 @@ public interface IGeneralSettings
         int AutoSavePeriod { get; set; }
         bool UserEditedLogLevel { get; set; }
         int MinimumLogLevel { get; set; }
+        bool SetDpiUnaware { get; set; }
         List<ExperimentalFeatures> EnableExperimentalFeatures { get; set; }
     }
 
@@ -56,6 +57,8 @@ public int MinimumLogLevel
             }
         }
 
+        public bool SetDpiUnaware { get; set; }
+
         public List<ExperimentalFeatures> EnableExperimentalFeatures { get; set; } = new List<ExperimentalFeatures>();
 
         public GeneralSettings()
@@ -79,7 +82,8 @@ public bool Equals(GeneralSettings other)
                    UserEditedLogLevel == other.UserEditedLogLevel &&
                    MinimumLogLevel == other.MinimumLogLevel &&
                    EnableExperimentalFeatures.All(a => other.EnableExperimentalFeatures.Contains(a)) &&
-                   EnableExperimentalFeatures.Count == other.EnableExperimentalFeatures.Count;
+                   EnableExperimentalFeatures.Count == other.EnableExperimentalFeatures.Count &&
+                   SetDpiUnaware == other.SetDpiUnaware;
         }
     }
 }

Rubberduck.Core/UI/Settings/GeneralSettings.xaml

@@ -131,6 +131,8 @@
                               IsChecked="{Binding CheckVersionAtStartup}" />
                     <CheckBox Margin="5,0,0,5" Content="{Resx ResxName=Rubberduck.Resources.RubberduckUI, Key=GeneralSettings_CompileBeforeParse}"
                               IsChecked="{Binding CompileBeforeParse}" />
+                    <CheckBox Margin="5,0,0,5" Content="{Resx ResxName=Rubberduck.Resources.RubberduckUI, Key=GeneralSettings_SetDpiUnaware}"
+                              IsChecked="{Binding SetDpiUnaware}" />
                     <StackPanel Orientation="Horizontal"/>
 
                     <Label Content="{Resx ResxName=Rubberduck.Resources.RubberduckUI, Key=GeneralSettings_MinimumLogLevelLabel}" FontWeight="SemiBold" />

Rubberduck.Core/UI/Settings/GeneralSettingsViewModel.cs

@@ -158,6 +158,20 @@ public bool CompileBeforeParse
             }
         }
 
+        private bool _setDpiUnaware;
+        public bool SetDpiUnaware
+        {
+            get => _setDpiUnaware;
+            set
+            {
+                if (_setDpiUnaware != value)
+                {
+                    _setDpiUnaware = value;
+                    OnPropertyChanged();
+                }
+            }
+        }
+
         private bool SynchronizeVBESettings()
         {
             if (!_messageBox.ConfirmYesNo(RubberduckUI.GeneralSettings_CompileBeforeParse_WarnCompileOnDemandEnabled,
@@ -243,6 +257,7 @@ private Rubberduck.Settings.GeneralSettings GetCurrentGeneralSettings()
                 CanShowSplash = ShowSplashAtStartup,
                 CanCheckVersion = CheckVersionAtStartup,
                 CompileBeforeParse = CompileBeforeParse,
+                SetDpiUnaware =  SetDpiUnaware,
                 IsSmartIndenterPrompted = _indenterPrompted,
                 IsAutoSaveEnabled = AutoSaveEnabled,
                 AutoSavePeriod = AutoSavePeriod,
@@ -259,6 +274,7 @@ private void TransferSettingsToView(IGeneralSettings general, IHotkeySettings ho
             ShowSplashAtStartup = general.CanShowSplash;
             CheckVersionAtStartup = general.CanCheckVersion;
             CompileBeforeParse = general.CompileBeforeParse;
+            SetDpiUnaware = general.SetDpiUnaware;
             _indenterPrompted = general.IsSmartIndenterPrompted;
             AutoSaveEnabled = general.IsAutoSaveEnabled;
             AutoSavePeriod = general.AutoSavePeriod;

Rubberduck.Main/Extension.cs

@@ -160,6 +160,17 @@ private void InitializeAddIn()
                 catch (CultureNotFoundException)
                 {
                 }
+                try
+                {
+                    if (_initialSettings.SetDpiUnaware)
+                    {
+                        SetProcessDpiAwareness(PROCESS_DPI_AWARENESS.Process_DPI_Unaware);
+                    }
+                }
+                catch (Exception)
+                {
+                    Debug.Assert(false, "Could not set DPI awareness.");
+                }
             }
             else
             {
@@ -300,5 +311,15 @@ private void ShutdownAddIn()
                 }
             }
         }
+
+        [DllImport("SHCore.dll", SetLastError = true)]
+        private static extern bool SetProcessDpiAwareness(PROCESS_DPI_AWARENESS awareness);
+
+        private enum PROCESS_DPI_AWARENESS
+        {
+            Process_DPI_Unaware = 0,
+            Process_System_DPI_Aware = 1,
+            Process_Per_Monitor_DPI_Aware = 2
+        }
     }
 }

Rubberduck.Resources/RubberduckUI.resx

@@ -1295,4 +1295,7 @@ NOTE: Restart is required for the setting to take effect.</value>
   <data name="TodoMarkerTodo" xml:space="preserve">
     <value>TODO</value>
   </data>
+  <data name="GeneralSettings_SetDpiUnaware" xml:space="preserve">
+    <value>Set DPI Unaware</value>
+  </data>
 </root>