Object Inquiry Built-in Functions
Return the coordinates of a region's window or the first line in a list box.
{window xposition|window yposition} of OBJECT_NAME
OBJECT_NAME
The identifier for a region or list box.
Description
Use these functions to find and use: the origin coordinates of a graphical, image, sense, dialog, or textual region's window; or the line number of the first line displayed in a list box.
If you use these functions with any other type of object, ESL returns values of zero, along with an appropriate error message.
Note that only window yposition of can be applied to a list box or a combination box.
The keyword of is not required when you use these functions in a drawing statement.
The values returned are expressed in the coordinates of the specified object, as follows:
Graphical, Image, Sense, or Dialog Region
Function |
Value Returned |
|
window xposition of |
The X coordinate of the origin of the window. (For dialog regions, this is expressed in dialog units.) |
|
window yposition of |
The Y coordinate of the origin of the window. (For dialog regions, this is expressed in dialog units.) |
|
Textual Region
Function |
Value Returned |
|
window xposition of |
Column number of the leftmost character in the window. |
|
window yposition of |
Line number of the topmost line in the window. |
|
List and Combination Boxes
Function |
Value Returned |
|
window yposition of |
Line number of the first line displayed in list and combination boxes. |
|
Example
response to Pandown_PB
change Book_TR window position by 0 (StepSize_IV)
if ((window yposition of Book_TR) > (10)) then
make Pandown_PB invisible
end if
See Also
window xsize and window ysize Object Inquiry Built-in Functions
