stream.gDataInputStreamReadUint32(object, cancellable = NULL, .errwarn = TRUE)objectGDataInputStream.cancellableGCancellable object, NULL to ignore.stream or 0 if
an error occurred.errorGError for error reporting.gDataStreamGetByteOrder() and gDataStreamSetByteOrder().
If cancellable is not NULL, then the operation can be cancelled by
triggering the cancellable object from another thread. If the operation
was cancelled, the error G_IO_ERROR_CANCELLED will be returned.