Then you did not read
properly.
Zitat:
pMountInfo
[out opt] Pointer to a variable that receives the array of mounted image structures. The size of the information written varies depending on the type of structured defined by the fInfoLevelId parameter.
cbMountInfoLength
[in] The size of the buffer pointed to by the pMountInfo parameter, in bytes.
pcbReturnLength ( @created ? )
[out] A pointer to a variable in which the function returns the size of the requested information. If ...