Oracle Forms Developer – Form Builder Reference, Volume 1

IMAGE_ZOOM built-in
Description
Zooms the image in or out using the effect specified in zoom_type and the amount specified in
zoom_factor.
Syntax
PROCEDURE IMAGE_ZOOM
(image_id ITEM,
zoom_type NUMBER);
PROCEDURE IMAGE_ZOOM
(image_name VARCHAR2,
zoom_type NUMBER);
PROCEDURE IMAGE_ZOOM
(image_id ITEM,
zoom_type NUMBER,
zoom_factor NUMBER);
PROCEDURE IMAGE_ZOOM
(image_name VARCHAR2,
zoom_type NUMBER,
zoom_factor NUMBER);
Built-in Type unrestricted procedure
Enter Query Mode yes
Parameters
image_id Specifies the unique ID Form Builder assigns when it creates the image
item. The data type of the ID is ITEM.
image_name Specifies the name you gave the image when defining it.
zoom_type Specify one of the following constants to describe the effect you want to
have on the image displayed:
258
ADJUST_TO_FIT Scales the image to fit within the display rectangle:
the entire image is visible and the image fills as much of the image item as
possible without distorting the image.
SELECTION_RECTANGLE Scales the image so the selected region
fully fills the image item.
ZOOM_IN_FACTOR Enlarges the image by the zoom_factor.
ZOOM_OUT_FACTOR Reduces the image by the zoom_factor.
ZOOM_PERCENT Scales the image to the percentage indicated in
zoom_factor.
zoom_factor Specifies either the factor or the percentage to which you want the image
zoomed. Supply a whole number for this argument.
Usage Notes
• Check zoom_factor for reasonableness. For example, specifying a ZOOM_IN_FACTOR of 100