Remove code which was regarding to legacy windows version support

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@4149 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CIrrDeviceWin32.cpp

@@ -899,8 +899,7 @@ namespace irr
 
 //! constructor
 CIrrDeviceWin32::CIrrDeviceWin32(const SIrrlichtCreationParameters& params)
-: CIrrDeviceStub(params), HWnd(0), ChangedToFullScreen(false),
-	IsNonNTWindows(false), Resized(false),
+: CIrrDeviceStub(params), HWnd(0), ChangedToFullScreen(false), Resized(false),
 	ExternalWindow(false), Win32CursorControl(0), JoyControl(0)
 {
 	#ifdef _DEBUG
@@ -1228,20 +1227,12 @@ void CIrrDeviceWin32::resizeIfNecessary()
 //! sets the caption of the window
 void CIrrDeviceWin32::setWindowCaption(const wchar_t* text)
 {
+	// We use SendMessage instead of SetText to ensure proper
+	// function even in cases where the HWND was created in a different thread
 	DWORD_PTR dwResult;
-	if (IsNonNTWindows)
-	{
-		const core::stringc s = text;
-		SendMessageTimeout(HWnd, WM_SETTEXT, 0,
-				reinterpret_cast<LPARAM>(s.c_str()),
-				SMTO_ABORTIFHUNG, 2000, &dwResult);
-	}
-	else
-	{
-		SendMessageTimeoutW(HWnd, WM_SETTEXT, 0,
-				reinterpret_cast<LPARAM>(text),
-				SMTO_ABORTIFHUNG, 2000, &dwResult);
-	}
+	SendMessageTimeoutW(HWnd, WM_SETTEXT, 0,
+			reinterpret_cast<LPARAM>(text),
+			SMTO_ABORTIFHUNG, 2000, &dwResult);
 }
 
 
@@ -1632,8 +1623,6 @@ void CIrrDeviceWin32::getWindowsVersion(core::stringc& out)
 
 	case VER_PLATFORM_WIN32_WINDOWS:
 
-		IsNonNTWindows = true;
-
 		if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 0)
 		{
 			out.append("Microsoft Windows 95 ");
@@ -1654,8 +1643,6 @@ void CIrrDeviceWin32::getWindowsVersion(core::stringc& out)
 		break;
 
 	case VER_PLATFORM_WIN32s:
-
-		IsNonNTWindows = true;
 		out.append("Microsoft Win32s ");
 		break;
 	}

source/Irrlicht/CIrrDeviceWin32.h

@@ -389,7 +389,6 @@ namespace irr
 		HWND HWnd;
 
 		bool ChangedToFullScreen;
-		bool IsNonNTWindows;
 		bool Resized;
 		bool ExternalWindow;
 		CCursorControl* Win32CursorControl;