MMRESULT WINAPI mmioDescend(HMMIO,LPMMCKINFO,const MMCKINFO*,UINT);
MMRESULT WINAPI mmioAscend(HMMIO,LPMMCKINFO,UINT);
MMRESULT WINAPI mmioCreateChunk(HMMIO,LPMMCKINFO,UINT);
MMRESULT WINAPI mmioDescend(HMMIO,LPMMCKINFO,const MMCKINFO*,UINT);
MMRESULT WINAPI mmioAscend(HMMIO,LPMMCKINFO,UINT);
MMRESULT WINAPI mmioCreateChunk(HMMIO,LPMMCKINFO,UINT);