Fix a couple of high-DPI problems.

src/AddIns/DisplayBindings/HexEditor/Project/Src/Editor.cs

@@ -115,7 +115,10 @@ namespace HexEditor
 			selection = new SelectionManager(ref buffer);
 			undoStack = new UndoManager();
 			insertmode = true;
-			underscorewidth = MeasureStringWidth(this.CreateGraphics(), "_", Settings.DataFont);
+			using (var g = this.CreateGraphics()) {
+				VScrollBar.Width = (int)(VScrollBar.Width * (g.DpiX / 96f));
+				underscorewidth = MeasureStringWidth(g, "_", Settings.DataFont);
+			}
 			underscorewidth3 = underscorewidth * 3;
 			fontheight = GetFontHeight(Settings.DataFont);
 			selregion = new Rectangle[] {};

src/Main/Base/Project/Resources/CommonAboutDialog.xfrm

@@ -11,6 +11,8 @@
 	<StartPosition   value = "CenterScreen"/>
 	<AcceptButton    value = "okButton"/>
 	<CancelButton    value = "okButton"/>
+	<AutoScaleMode   value = "Dpi"/>
+	<AutoScaleDimensions value = "{Width=96, Height=96}"/>
 
 	<Controls>
 		

src/Main/Base/Project/Resources/NewFileDialog.xfrm

@@ -4,6 +4,8 @@
     <MinimizeBox value="False" />
     <MinimumSize value="350, 190" />
     <MaximizeBox value="False" />
+    <AutoScaleMode value="Dpi" />
+    <AutoScaleDimensions value="{Width=96, Height=96}" />
     <ShowInTaskbar value="False" />
     <Text value="${res:Dialog.NewFile.DialogName}" />
     <ClientSize value="{Width=510, Height=366}" />

src/Main/Base/Project/Resources/NewFileWithNameDialog.xfrm

@@ -4,6 +4,8 @@
     <MinimumSize value="350, 200" />
     <MinimizeBox value="False" />
     <MaximizeBox value="False" />
+    <AutoScaleMode value="Dpi" />
+    <AutoScaleDimensions value="{Width=96, Height=96}" />
     <ShowInTaskbar value="False" />
     <Text value="${res:Dialog.NewFile.DialogName}" />
     <ClientSize value="{Width=542, Height=372}" />

src/Main/ICSharpCode.Core.WinForms/MessageService/CustomDialog.cs

@@ -155,6 +155,8 @@ namespace ICSharpCode.Core.WinForms
 			this.KeyPreview = true;
 			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
 			this.Text = "CustomDialog";
+			this.AutoScaleMode = AutoScaleMode.Dpi;
+			this.AutoScaleDimensions = new SizeF(96, 96);
 		}
 	}
 }

src/Main/SharpDevelop/Logging/ExceptionBox.cs

@@ -333,11 +333,14 @@ namespace ICSharpCode.SharpDevelop.Logging
 			this.pictureBox.Location = new System.Drawing.Point(0, 0);
 			this.pictureBox.Name = "pictureBox";
 			this.pictureBox.Size = new System.Drawing.Size(224, 464);
+			this.pictureBox.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
 			this.pictureBox.TabIndex = 0;
 			this.pictureBox.TabStop = false;
 			// 
 			// ExceptionBox
 			// 
+			this.AutoScaleDimensions = new System.Drawing.SizeF(96F, 96F);
+			this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Dpi;
 			this.ClientSize = new System.Drawing.Size(688, 453);
 			this.Controls.Add(this.closeButton);
 			this.Controls.Add(this.label3);

src/Main/SharpDevelop/Startup/SplashScreen.cs

@@ -104,8 +104,10 @@ namespace ICSharpCode.SharpDevelop.Startup
 					}
 					
 					string param = arg.Substring(markerLength);
-					// work around .NET "feature" that causes trouble with /addindir:"c:\temp\"
-					// http://www.mobzystems.com/code/bugingetcommandlineargs.aspx
+					// The SharpDevelop AddIn project template uses /addindir:"c:\temp\"
+					// but that actually means the last quote is escaped.
+					// This HACK makes this work anyways by replacing the trailing quote
+					// with a backslash:
 					if (param.EndsWith("\"", StringComparison.Ordinal))
 						param = param.Substring(0, param.Length - 1) + "\\";
 					parameterList.Add(param);