public static bool UpdatePublishedFilePreviewFile(PublishedFileUpdateHandle_t updateHandle, string pchPreviewFile) { InteropHelp.TestIfAvailableClient(); using (var pchPreviewFile2 = new InteropHelp.UTF8StringHandle(pchPreviewFile)) { return NativeMethods.ISteamRemoteStorage_UpdatePublishedFilePreviewFile(updateHandle, pchPreviewFile2); } }