QUERY_GIF

QUERY_GIF

QUERY_GIF is a method of obtaining information about a GIF image file without having to read the file. See QUERY_* Routines for more information.

Note

The GIF format uses compression technologies that may be subject to license restrictions. If you receive a warning when attempting to use this routine, contact RSI for information about licensing options.

Syntax

Result = QUERY_GIF ( Filename [, Info] )

Return Value

This routine returns a long with the value of 1 (one) if the query was successful (and the file type was correct) or 0 (zero) on failure.

Arguments

Filename

A scalar string containing the pathname of the GIF file to query.

Info

Returns an anonymous structure containing information about the image in the file. The Info.TYPE field will return the value `GIF'.

Note

See QUERY_* Routines for detailed structure info.

Keywords

None

QUERY_GIF

Syntax

Return Value

Arguments

Filename

Info

Keywords

See Also