Type Definition gdal_sys::VSIFilesystemPluginOpenCallback

pub type VSIFilesystemPluginOpenCallback = Option<unsafe extern "C" fn(pUserData: *mut c_void, pszFilename: *const c_char, pszAccess: *const c_char) -> *mut c_void>;

Open a handle. Mandatory. Returns an opaque pointer that will be used in subsequent file I/O calls. Should return null and/or set errno if the handle does not exist or the access mode is incorrect. @since GDAL 3.0