function ParamsFromStream(Stream: TStream; Format: TIOFileType = ioUnknown): Boolean;
Reads the image properties
without loading the image (and without changing the current image). Result is false if a loading error is encountered due to a corrupt or unknown image format.Stream
is a TStream that contains the image.Format
is the file format that the stream or file contains. If ioUnknown
is specified then the file content is analyzed to determine the format.