Lua - implement client.paint()

BizHawk.MultiClient/MainForm.cs

@@ -4565,5 +4565,10 @@ namespace BizHawk.MultiClient
 		{
 			LoadRom(CurrentlyOpenRom);
 		}
+
+		public void ForcePaint()
+		{
+			GlobalWinF.DisplayManager.NeedsToPaint = true;
+		}
 	}
 }

BizHawk.MultiClient/tools/Lua/Libraries/EmuLuaLibrary.Client.cs

@@ -33,6 +33,7 @@ namespace BizHawk.MultiClient
 					"opentasstudio",
 					"opentoolbox",
 					"opentracelogger",
+					"paint",
 					"pause",
 					"pause_av",
 					"reboot_core",
@@ -149,6 +150,11 @@ namespace BizHawk.MultiClient
 			GlobalWinF.MainForm.LoadTraceLogger();
 		}
 
+		public static void client_paint()
+		{
+			GlobalWinF.MainForm.ForcePaint();
+		}
+
 		public static void client_pause()
 		{
 			GlobalWinF.MainForm.PauseEmulator();