Technical Reference Manual - InduSoft

Screens and Graphics
• Disable text box: Configure a tag/expression in this field to control when sliding is disabled. When the
value of the tag/expression is TRUE (i.e., any non-zero value), sliding is disabled. When the value is
FALSE (i.e., 0 or a blank space), sliding is enabled.
• Security text box: Enter the security level required to use the object as a slider.
• Move area: Configure these settings to determine how the object moves on the screen:
• Tag / Expression text boxes: The meaning of these boxes depends on whether the Slider option is enabled
(see above):
• Expression text box: If the Slider option is not enabled, then configure either a tag or an expression in
this field. The current value of the tag / expression determines the current position of the object. As
the value changes, the object is moved on the screen.
• Tag text box: If the Slider option is enabled, then enter only an Integer or Real tag in this field. The
tag will receive a value that is equivalent to the current position of the object. As the user moves the
object, the value is changed.
For the horizontal position, the value increases as the object moves to the right and it decreases at the
object moves to the left. For the vertical position, the value increases as the object moves to the bottom
and it decreases at the object moves to the top.
• Range text boxes: Enter the minimum and maximum values for the tag / expression. If the actual value
goes outside of its range, then the value is ignored and the limit is used instead.
• Position text boxes: Enter values to specify how far (in pixels) the object can move from its starting
position. The starting position is equal to "0,0". Values greater than 0 allow the object to move right and
down, and values less than 0 allow the object to move left and up.
During runtime, the object's position is proportional to the tag / expression value within its range. For
example, if Position is 0 to 100 and Range is 0 to 10, then each increment in the value will move the object
10 pixels. This is true for both Horz and Vert.
• Reference drop-down lists: Select a reference point on the object. The following table shows how your
selections for Horz and Vert work in combination:
TOP
LEFT CENTER RIGHT
CENTER
BOTTOM
This reference point is meaningful only if you have the Size animation added to the same object. The
position of the object is always based on this reference point, regardless of the size or shape of the
object.
InduSoft Web Studio Page 229