windows: add "background input" option to the menu.

desmume/src/windows/inputdx.cpp

@@ -260,6 +260,7 @@ SPiano Piano;
 SPiano DefaultPiano = { false, 'Z', 'S', 'X', 'D', 'C', 'V', 'G', 'B', 'H', 'N', 'J', 'M', VK_OEM_COMMA };
 
 bool allowUpAndDown = false;
+bool allowBackgroundInput = false;
 
 extern volatile bool paused;
 
@@ -450,6 +451,7 @@ static void LoadInputConfig()
 #undef DO
 
 	allowUpAndDown = GetPrivateProfileInt("Controls","AllowUpAndDown",0,IniName) != 0;
+	allowBackgroundInput = GetPrivateProfileInt("Controls","AllowBackgroundInput",0,IniName) != 0;
 }
 
 static void WriteControl(char* name, WORD val)
@@ -2193,8 +2195,7 @@ bool S9xGetState (WORD KeyIdent)
 	if(KeyIdent == 0 || KeyIdent == 0xFF || KeyIdent == VK_ESCAPE) // if it's the 'disabled' key, it's never pressed
 		return true;
 
-	//TODO - option for background game keys
-	if(MainWindow->getHWnd() != GetForegroundWindow())
+	if(!allowBackgroundInput && MainWindow->getHWnd() != GetForegroundWindow())
 		return true;
 
     if (KeyIdent & 0x8000) // if it's a joystick 'key':

desmume/src/windows/main.cpp

@@ -406,6 +406,7 @@ extern HWND RamSearchHWnd;
 static bool lostFocusPause = true;
 static bool lastPauseFromLostFocus = false;
 static bool FrameLimit = true;
+extern bool allowBackgroundInput;
 
 std::vector<HWND> LuaScriptHWnds;
 LRESULT CALLBACK LuaScriptProc(HWND, UINT, WPARAM, LPARAM);
@@ -3979,6 +3980,7 @@ LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM
 			MainWindow->checkMenu(ID_DISPLAYMETHOD_DIRECTDRAWSW, (GetStyle()&DWS_DDRAW_SW)!=0);
 
 			MainWindow->checkMenu(IDC_BACKGROUNDPAUSE, lostFocusPause);
+			MainWindow->checkMenu(IDC_BACKGROUNDINPUT, allowBackgroundInput);
 
 			MainWindow->checkMenu(IDM_CHEATS_DISABLE, CommonSettings.cheatsDisable == true);
 
@@ -5133,6 +5135,11 @@ DOKEYDOWN:
 			WritePrivateProfileInt("Focus", "BackgroundPause", (int)lostFocusPause, IniName);
 			return 0;
 
+		case IDC_BACKGROUNDINPUT:
+			allowBackgroundInput = !allowBackgroundInput;
+			WritePrivateProfileInt("Controls", "AllowBackgroundInput", (int)allowBackgroundInput, IniName);
+			return 0;
+
 		case ID_DISPLAYMETHOD_VSYNC:
 			SetStyle(GetStyle()^DWS_VSYNC);
 			WritePrivateProfileInt("Video","VSync", (GetStyle()&DWS_VSYNC)?1:0, IniName);

desmume/src/windows/resource.h

@@ -107,6 +107,7 @@
 #define IDC_16_BIT                      303
 #define IDC_32_BIT                      304
 #define IDC_BACKGROUNDPAUSE             305
+#define IDC_BACKGROUNDINPUT             306
 #define IDC_LUACONSOLE                  309
 #define IDC_EDIT_LUAPATH                310
 #define IDC_BUTTON_LUARUN               311