|
Part two of the thumbnail
control is about low level interface
support and development for the Image
SDK and Document Imaging SDK. The low
level interface of the thumbnail control
doesn’t provide a visual interface like
the high level interface, but the
programming interface provides great
flexibility and the developers can
create unique graphical user interfaces
with their own thumbnail design. |
The
thumbnail control has a powerful built
in directory browsing capability.
Developers can recursively browse a
directory structure including sub
directories or browse through multi page
image files at the same time. The multi
page image support is available for GIF,
TIFF, DCX, etc. For example, when
browsing through a directory with single
page JPEG files and the browser
encounters a ten page Tiff file,
|
all ten image pages will
be displayed as single thumbnail.
When the browser generates a thumbnail,
it generates an event, and the developer
can handle this event for each file. In
the “event handler function” a user can
display a thumbnail in a Window, in any
device context DC or get information
about the image. The thumbnail control has
many different sets of properties which
developers can
(Continued on Page 2) |
