Hi Christoph, I tried this in sound.h:
const unsigned int SOUND_COMMAND_INIT_HANDLE = (const)RegisterWindowMessage(UM_SOUND_COMMAND_INIT_HANDLE_MSG); and got the error: d:\src\freesci\src\include\sound.h(76) : error C2099: initializer is not a constant Even with both const's removed I still get the same error. When trying to do a case statement with SOUND_COMMAND_xxx then, I get this error: d:\src\freesci\src\sound\sound.c(127) : error C2051: case expression not constant That's why I had to ditch the case statements. Do you have any suggestions? Alex.
