fix win cmake flags for swig

Author: thiesmoeller

CMakeLists.txt

@@ -188,6 +188,15 @@ if(UNIX AND NOT APPLE)
     else()
         list(APPEND CMAKE_SWIG_FLAGS -DSWIGWORDSIZE32)
     endif()
+elseif(WIN32)
+    # Windows needs the word size defined as well
+    if(CMAKE_SIZEOF_VOID_P EQUAL 8)
+        list(APPEND CMAKE_SWIG_FLAGS -DSWIGWORDSIZE64)
+    else()
+        list(APPEND CMAKE_SWIG_FLAGS -DSWIGWORDSIZE32)
+    endif()
+    # Also define _WIN32 for the genicam.i file
+    list(APPEND CMAKE_SWIG_FLAGS -D_WIN32)
 endif()
 
 # Function to create a SWIG Python module