Changed sf::WindowHandle from void* to HWND on Windows

git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/branches/sfml2@1580 4e206d99-4929-0410-ac5d-dfc041789085

src/SFML/Window/Win32/WglContext.cpp

@@ -71,7 +71,7 @@ myContext      (NULL),
 myOwnsWindow   (false)
 {
     // Get the owner window and its device context
-    myWindow = static_cast<HWND>(owner->GetSystemHandle());
+    myWindow = owner->GetSystemHandle();
     myDeviceContext = GetDC(myWindow);
 
     // Create the context

src/SFML/Window/Win32/WindowImplWin32.cpp

@@ -64,16 +64,13 @@ namespace priv
 {
 ////////////////////////////////////////////////////////////
 WindowImplWin32::WindowImplWin32(WindowHandle handle) :
-myHandle          (NULL),
+myHandle          (handle),
 myCallback        (0),
 myCursor          (NULL),
 myIcon            (NULL),
 myKeyRepeatEnabled(true),
 myIsCursorIn      (false)
 {
-    // Save window handle
-    myHandle = static_cast<HWND>(handle);
-
     if (myHandle)
     {
         // Get window client size