Function XPLMGetDirectoryContents 

pub unsafe extern "C" fn XPLMGetDirectoryContents(
    inDirectoryPath: *const c_char,
    inFirstReturn: c_int,
    outFileNames: *mut c_char,
    inFileNameBufSize: c_int,
    outIndices: *mut *mut c_char,
    inIndexCount: c_int,
    outTotalFiles: *mut c_int,
    outReturnedFiles: *mut c_int,
) -> c_int

XPLMGetDirectoryContents

This routine returns a list of files in a directory (specified by a full path, no trailing : or / ). The output is returned as a list of NULL terminated strings. An index array (if specified) is filled with pointers into the strings. The last file is indicated by a zero-length string (and NULL in the indices). This routine will return 1 if you had capacity for all files or 0 if you did not. You can also skip a given number of files.

• inDirectoryPath - a null terminated C string containing the full path to the directory with no trailing directory char.

• inFirstReturn - the zero-based index of the first file in the directory to return. (Usually zero to fetch all in one pass.)

• outFileNames - a buffer to receive a series of sequential null terminated C-string file names. A zero-length C string will be appended to the very end.

• inFileNameBufSize - the size of the file name buffer in bytes.

• outIndices - a pointer to an array of character pointers that will become an index into the directory. The last file will be followed by a NULL value. Pass NULL if you do not want indexing information.

• inIndexCount - the max size of the index in entries.

• outTotalFiles - if not NULL, this is filled in with the number of files in the directory.

• outReturnedFiles - if not NULL, the number of files returned by this iteration.

Return value: 1 if all info could be returned, 0 if there was a buffer overrun.

WARNING: Before X-Plane 7 this routine did not properly iterate through directories. If X-Plane 6 compatibility is needed, use your own code to iterate directories.