Pass MessageBox.Show to Virtual Pads schemata as callback

src/BizHawk.Client.EmuHawk/tools/VirtualPads/VirtualpadsTool.cs

@@ -86,7 +86,7 @@ namespace BizHawk.Client.EmuHawk
 			if (schemaType == null) return;
 
 			var padSchemata = ((IVirtualPadSchema) Activator.CreateInstance(schemaType))
-				.GetPadSchemas(Emulator)
+				.GetPadSchemas(Emulator, s => MessageBox.Show(s))
 				.ToList();
 
 			if (VersionInfo.DeveloperBuild)

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/A26Schema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Emulation.Common;
@@ -10,7 +11,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class A26Schema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			var ss = ((Atari2600)core).GetSyncSettings().Clone();
 

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/A78Schema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 using BizHawk.Emulation.Common;
 
@@ -15,7 +16,7 @@ namespace BizHawk.Client.EmuHawk
 		private static string ProLineControllerName => typeof(ProLineController).DisplayName();
 		private static string LightGunControllerName => typeof(LightGunController).DisplayName();
 
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			var ss = ((A7800Hawk)core).GetSyncSettings().Clone();
 

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/AppleIISchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Emulation.Common;
@@ -9,7 +10,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class AppleIISchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return Keyboard();
 			yield return DiskSelection();

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/C64Schema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Emulation.Common;
@@ -9,7 +10,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class C64Schema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return StandardController(1);
 			yield return StandardController(2);

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/ColecoSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;
 using BizHawk.Emulation.Common;
@@ -10,7 +11,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class ColecoSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			var deck = ((ColecoVision)core).ControllerDeck;
 			var ports = new[] { deck.Port1.GetType(), deck.Port2.GetType() };

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/DualGBSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Emulation.Common;
@@ -9,7 +10,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class DualGbSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return StandardController(1);
 			yield return StandardController(2);

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/GBASchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Emulation.Common;
@@ -10,7 +11,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class GbaSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return StandardController();
 			yield return ConsoleButtons();

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/GBSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Emulation.Common;
@@ -9,7 +10,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class GbSchema : IVirtualPadSchema
 	{
-		public virtual IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public virtual IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			switch (core.ControllerDefinition.Name)
 			{
@@ -113,7 +114,7 @@ namespace BizHawk.Client.EmuHawk
 	[Schema("GB3x")]
 	public class Gb3XSchema : GbSchema
 	{
-		public override IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public override IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return StandardControllerH(1);
 			yield return StandardControllerH(2);
@@ -125,7 +126,7 @@ namespace BizHawk.Client.EmuHawk
 	[Schema("GB4x")]
 	public class Gb4XSchema : GbSchema
 	{
-		public override IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public override IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return StandardControllerH(1);
 			yield return StandardControllerH(2);

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/GGLSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Emulation.Common;
@@ -9,7 +10,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class GGLSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return StandardController(1);
 			yield return StandardController(2);

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/GenSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;
 
@@ -11,7 +12,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class GenSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			if (core is GPGX gpgx)
 			{

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/IVirtualPadSchema.cs

@@ -1,10 +1,11 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using BizHawk.Emulation.Common;
 
 namespace BizHawk.Client.EmuHawk
 {
 	public interface IVirtualPadSchema
 	{
-		IEnumerable<PadSchema> GetPadSchemas(IEmulator core);
+		IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox);
 	}
 }

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/IntvSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;
 
@@ -15,7 +16,7 @@ namespace BizHawk.Client.EmuHawk
 		private string StandardControllerName => typeof(StandardController).DisplayName();
 		private string AnalogControllerName => typeof(FakeAnalogController).DisplayName();
 
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			var intvSyncSettings = ((Intellivision)core).GetSyncSettings().Clone();
 			var port1 = intvSyncSettings.Port1;

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/LynxSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Emulation.Common;
@@ -9,7 +10,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class LynxSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return new PadSchema
 			{

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/N64Schema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Common;
@@ -11,7 +12,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class N64Schema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			var ss = ((N64)core).GetSyncSettings();
 			for (var i = 0; i < 4; i++)

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/NdsSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 using BizHawk.Emulation.Common;
 
@@ -8,7 +9,7 @@ namespace BizHawk.Client.EmuHawk.tools.VirtualPads.schema
 	// ReSharper disable once UnusedMember.Global
 	public class NdsSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return Controller();
 			yield return Console();

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/NesSchema.cs

@@ -15,7 +15,7 @@ namespace BizHawk.Client.EmuHawk
 	public class NesSchema : IVirtualPadSchema
 	{
 		/// <exception cref="Exception">found <c>ControllerSNES</c></exception>
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			if (core is NES || core is SubNESHawk)
 			{

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/NgpSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Emulation.Common;
@@ -9,7 +10,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class NgpSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return Controller();
 			yield return ConsoleButtons();

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/O2Schema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 using BizHawk.Emulation.Common;
 
@@ -8,7 +9,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class O2Schema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return StandardController(1);
 			yield return StandardController(2);

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/PSXSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Common;
@@ -11,7 +12,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class PsxSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			var psx = (Octoshock)core;
 			var settings = psx.GetSyncSettings();

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/PceSchema.cs

@@ -1,7 +1,7 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;
-using System.Windows.Forms;
 
 using BizHawk.Common;
 using BizHawk.Emulation.Common;
@@ -21,17 +21,17 @@ namespace BizHawk.Client.EmuHawk
 	[Schema("PCE")]
 	public class PceSchema : IVirtualPadSchema
 	{
-		public virtual IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public virtual IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			return core switch
 			{
-				PCEngine pce => PceHawkSchemas(pce),
-				NymaCore nyma => NymaSchemas(nyma),
+				PCEngine pce => PceHawkSchemas(pce, showMessageBox),
+				NymaCore nyma => NymaSchemas(nyma, showMessageBox),
 				_ => Enumerable.Empty<PadSchema>()
 			};
 		}
 
-		private static IEnumerable<PadSchema> PceHawkSchemas(PCEngine core)
+		private static IEnumerable<PadSchema> PceHawkSchemas(PCEngine core, Action<string> showMessageBox)
 		{
 			var ss = core.GetSyncSettings();
 
@@ -44,18 +44,18 @@ namespace BizHawk.Client.EmuHawk
 					ss.Port5
 				}
 				.Where(p => p != PceControllerType.Unplugged)
-				.Select((p, i) => PceHawkGenerateSchemaForPort(p, i + 1))
+				.Select((p, i) => PceHawkGenerateSchemaForPort(p, i + 1, showMessageBox))
 				.Where(s => s != null);
 
 			return padSchemas;
 		}
 
-		private static PadSchema PceHawkGenerateSchemaForPort(PceControllerType type, int controller)
+		private static PadSchema PceHawkGenerateSchemaForPort(PceControllerType type, int controller, Action<string> showMessageBox)
 		{
 			switch (type)
 			{
 				default:
-					MessageBox.Show($"{type} is not supported yet");
+					showMessageBox($"{type} is not supported yet");
 					return null;
 				case PceControllerType.Unplugged:
 					return null;
@@ -83,7 +83,7 @@ namespace BizHawk.Client.EmuHawk
 			};
 		}
 
-		private static IEnumerable<PadSchema> NymaSchemas(NymaCore nyma)
+		private static IEnumerable<PadSchema> NymaSchemas(NymaCore nyma, Action<string> showMessageBox)
 		{
 			foreach (NymaCore.PortResult result in nyma.ActualPortData)
 			{
@@ -99,7 +99,7 @@ namespace BizHawk.Client.EmuHawk
 				}
 				else if (device != "none")
 				{
-					MessageBox.Show($"Controller type {device} not supported yet.");
+					showMessageBox($"Controller type {device} not supported yet.");
 				}
 			}
 

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/PcfxSchema.cs

@@ -1,7 +1,7 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;
-using System.Windows.Forms;
 
 using BizHawk.Common;
 using BizHawk.Emulation.Common;
@@ -13,13 +13,13 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class PcfxSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			var nyma = (NymaCore) core;
-			return NymaSchemas(nyma);
+			return NymaSchemas(nyma, showMessageBox);
 		}
 
-		private static IEnumerable<PadSchema> NymaSchemas(NymaCore nyma)
+		private static IEnumerable<PadSchema> NymaSchemas(NymaCore nyma, Action<string> showMessageBox)
 		{
 			foreach (NymaCore.PortResult result in nyma.ActualPortData)
 			{
@@ -35,7 +35,7 @@ namespace BizHawk.Client.EmuHawk
 				}
 				else if (device != "none")
 				{
-					MessageBox.Show($"Controller type {device} not supported yet.");
+					showMessageBox($"Controller type {device} not supported yet.");
 				}
 			}
 

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/SGBSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Emulation.Common;
@@ -9,7 +10,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class SgbSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return StandardController(1);
 			yield return StandardController(2);

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/SaturnSchema.cs

@@ -1,11 +1,12 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;
-using System.Windows.Forms;
 
 using BizHawk.Common;
 using BizHawk.Emulation.Common;
 using BizHawk.Emulation.Cores.Waterbox;
+
 namespace BizHawk.Client.EmuHawk
 {
 	[Schema("SAT")]
@@ -14,7 +15,7 @@ namespace BizHawk.Client.EmuHawk
 	{
 		private static readonly AxisSpec AxisRange = new AxisSpec(0.RangeTo(0xffff), 0x8000);
 
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			var nyma = (NymaCore)core;
 			foreach (var result in nyma.ActualPortData
@@ -22,7 +23,7 @@ namespace BizHawk.Client.EmuHawk
 			{
 				var num = int.Parse(result.Port.ShortName.Last().ToString());
 				var device = result.Device.ShortName;
-				var schema = GenerateSchemaForPort(device, num);
+				var schema = GenerateSchemaForPort(device, num, showMessageBox);
 				if (schema != null)
 				{
 					yield return schema;
@@ -32,12 +33,12 @@ namespace BizHawk.Client.EmuHawk
 			yield return ConsoleButtons();
 		}
 
-		private static PadSchema GenerateSchemaForPort(string device, int controllerNum)
+		private static PadSchema GenerateSchemaForPort(string device, int controllerNum, Action<string> showMessageBox)
 		{
 			switch (device)
 			{
 				default:
-					MessageBox.Show($"This peripheral `{device}` is not supported yet");
+					showMessageBox($"This peripheral `{device}` is not supported yet");
 					return null;
 				case "none":
 					return null;

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/SmsSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 using BizHawk.Emulation.Common;
 using BizHawk.Emulation.Cores.Sega.MasterSystem;
@@ -9,7 +10,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class SmsSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			if (((SMS)core).IsGameGear)
 			{

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/SnesSchema.cs

@@ -1,7 +1,7 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;
-using System.Windows.Forms;
 using BizHawk.Emulation.Common;
 using BizHawk.Emulation.Cores.Nintendo.SNES;
 using BizHawk.Emulation.Cores.Nintendo.SNES9X;
@@ -13,7 +13,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class SnesSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			if (core is LibsnesCore bsnes)
 			{
@@ -22,7 +22,7 @@ namespace BizHawk.Client.EmuHawk
 
 			if (core is NymaCore nyma)
 			{
-				return GetFaustSchemas(nyma);
+				return GetFaustSchemas(nyma, showMessageBox);
 			}
 
 			return GetSnes9xPadSchemas((Snes9x)core);
@@ -115,7 +115,7 @@ namespace BizHawk.Client.EmuHawk
 			yield return ConsoleButtons();
 		}
 
-		private static IEnumerable<PadSchema> GetFaustSchemas(NymaCore nyma)
+		private static IEnumerable<PadSchema> GetFaustSchemas(NymaCore nyma, Action<string> showMessageBox)
 		{
 			foreach (NymaCore.PortResult result in nyma.ActualPortData)
 			{
@@ -127,7 +127,7 @@ namespace BizHawk.Client.EmuHawk
 				}
 				else if (device != "none")
 				{
-					MessageBox.Show($"Controller type {device} not supported yet.");
+					showMessageBox($"Controller type {device} not supported yet.");
 				}
 			}
 

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/VECSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Emulation.Common;
@@ -10,7 +11,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class VecSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			var vecSyncSettings = ((VectrexHawk)core).GetSyncSettings().Clone();
 			var port1 = vecSyncSettings.Port1;

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/VirtualBoySchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Emulation.Common;
@@ -9,7 +10,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class VirtualBoySchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return StandardController();
 			yield return ConsoleButtons();

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/WonderSwanSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Emulation.Common;
@@ -9,7 +10,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	public class WonderSwanSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return StandardController(1);
 			yield return RotatedController(2);

src/BizHawk.Client.EmuHawk/tools/VirtualPads/schema/ZXSpectrumSchema.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Drawing;
 
 using BizHawk.Emulation.Common;
@@ -9,7 +10,7 @@ namespace BizHawk.Client.EmuHawk
 	// ReSharper disable once UnusedMember.Global
 	internal class ZxSpectrumSchema : IVirtualPadSchema
 	{
-		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core)
+		public IEnumerable<PadSchema> GetPadSchemas(IEmulator core, Action<string> showMessageBox)
 		{
 			yield return Joystick(1);
 			yield return Joystick(2);