Query an Image File

ImagXpress® provides the ability to query images without loading them into ImagXpress.

The images may be remote or local but may not have an HTTP or FTP address.

Query Image Files

Querying enables the user to gain information about the file before choosing to process it using ImagXpress. For example: The user may decide to load only images that are smaller than a threshold size, or images that are of a specified type.

The QueryFile2 and QueryFileV2 methods enables the user to obtain information about a specified page in a TIFF file. Using these methods obtains the following file information: image height and width in pixels, bits per pixel, image format, image file size and image resolution.

The NumPages method enables the user to query a multiple page TIFF or DCX file to determine the number of pages in the file. This enables a user to query multiple pages, by iterating the page number in the QueryFile and QueryFileV methods.