fix memory corruption in clipboard copying

was copying WCHAR size instead of char (wtf)

src/platform_w32_common/Clipboard.cpp

@@ -5,19 +5,19 @@ namespace Clipboard
   void Copy( const char * data, int len )
   {
     HWND hWnd = GetForegroundWindow();
-    if (!::OpenClipboard( hWnd ))
+    if ( !::OpenClipboard( hWnd ) )
       return;
 
     EmptyClipboard();
 
-    HGLOBAL h = GlobalAlloc(GMEM_MOVEABLE,(len + 1) * sizeof(WCHAR));
-    WCHAR * pMem = (WCHAR*)GlobalLock(h);
+    HGLOBAL h = GlobalAlloc( GMEM_MOVEABLE, ( len + 1 ) * sizeof( char ) );
+    WCHAR * pMem = (WCHAR*) GlobalLock( h );
 
-    ZeroMemory( pMem, (len + 1) * sizeof(WCHAR) );
-    CopyMemory( pMem, data, (len + 1) * sizeof(WCHAR) );
+    ZeroMemory( pMem, ( len + 1 ) * sizeof( char ) );
+    CopyMemory( pMem, data, ( len + 1 ) * sizeof( char ) );
 
-    GlobalUnlock(h);
-    SetClipboardData(CF_TEXT,h);
+    GlobalUnlock( h );
+    SetClipboardData( CF_TEXT, h );
 
     CloseClipboard();
   }
@@ -25,12 +25,12 @@ namespace Clipboard
   int GetContentsLength()
   {
     HWND hWnd = GetForegroundWindow();
-    if (!::OpenClipboard( hWnd ))
+    if ( !::OpenClipboard( hWnd ) )
       return 0;
 
-    HANDLE hData = GetClipboardData(CF_TEXT);
-    const char * buffer = (const char*)GlobalLock( hData );
-    int n = strlen(buffer);
+    HANDLE hData = GetClipboardData( CF_TEXT );
+    const char * buffer = (const char*) GlobalLock( hData );
+    int n = strlen( buffer );
 
     CloseClipboard();
 
@@ -40,11 +40,11 @@ namespace Clipboard
   void GetContents( char * data, int len )
   {
     HWND hWnd = GetForegroundWindow();
-    if (!::OpenClipboard( hWnd ))
+    if ( !::OpenClipboard( hWnd ) )
       return;
 
-    HANDLE hData = GetClipboardData(CF_TEXT);
-    const char * buffer = (const char*)GlobalLock( hData );
+    HANDLE hData = GetClipboardData( CF_TEXT );
+    const char * buffer = (const char*) GlobalLock( hData );
     strncpy( data, buffer, len );
 
     CloseClipboard();