ImageGear provides two ways to access image attributes: via the HIGEAR handle, and via the special object HIGDIBINFO, which encapsulates the image attributes.

Image Attribute	To Access via HIGEAR	To Access via HIGDIBINFO
Width	IG_image_dimensions_get	IG_DIB_width_get
Height	IG_image_dimensions_get	IG_DIB_height_get
Color Space	IG_image_colorspace_get	IG_DIB_colorspace_get
Channel Depths	IG_image_channel_count_get IG_image_channel_depth_get IG_image_channel_depths_get	IG_DIB_channel_count_get IG_DIB_channel_depth_get IG_DIB_channel_depths_get
Palette (for images that have Indexed colorspace)	IG_palette_get IG_palette_set	IG_DIB_palette_alloc IG_DIB_palette_length_get IG_DIB_palette_size_get IG_DIB_palette_pointer_get
Resolution	IG_image_resolution_get IG_image_resolution_set	IG_DIB_resolution_get IG_DIB_resolution_set
Signed attribute	IG_image_is_signed_get IG_image_is_signed_set

The HIGDIBINFO object only contains the attributes and does not contain the pixels.

Use IG_DIB_info_create to create a DIB info object. Use IG_DIB_info_copy to create a copy of an existing object. Use IG_image_DIB_info_get to obtain DIB information from a HIGEAR handle.

When the HIGDIBINFO object is no longer in use, you must delete it using IG_DIB_info_delete.