BBjControl::isVisible

Description

Returns whether the BBjControl is visible.

Syntax

Return Value Method
boolean isVisible()

Parameters

None.

Return Value

Returns true (1) if the BBjControl is visible.

Returns false (0) if the BBjControl is not visible.

Remarks

By default, a BBjControl is visible.

Example

rem 'Determine if a control is visible/invisible

rem 'Obtain the instance of the BBjAPI object
let myAPI! = BBjAPI()

rem 'Open the SysGui device
SYSGUI = UNT
OPEN (SYSGUI) "X0"

rem 'Obtain the instance of the BBjSysGui object
let mySysGui! = myAPI!.getSysGui()

rem 'Set common addWindow param values
X = 10
Y = 10
WIDTH = 200
HEIGHT = 200

rem 'Create a window with a title in the current context
TITLE$="BBj Window"

rem 'Set the current context
mySysGui!.setContext(0)
myWindow! = mySysGui!.addWindow(X,Y,WIDTH,HEIGHT,TITLE$)

rem 'Add a button on the window
myButton! = myWindow!.addButton(101,50,100,90,30,"Button")

rem 'Create constants
FALSE = 0
TRUE = 1

rem 'Make the button invisible
myButton!.setVisible(FALSE)

rem 'Check if the button is visible/invisible, this will return 0 (invisible)
VISIBLE = myButton!.isVisible()

rem 'Wait 3 seconds
WAIT(3)

rem 'Make the button visible
myButton!.setVisible(TRUE)

rem 'Check if the button is visible/invisible, this will return 1 (visible)
VISIBLE = myButton!.isVisible()

rem 'Register the CALLBACK routines
CALLBACK(ON_CLOSE,APP_CLOSE,mySysGui!.getContext())

rem 'Process Events
process_events

rem 'Callback routine called when the user closes the application window
APP_CLOSE:
release

See Also

BBjAPI

BBjSysGui

BBjWindow

See the BBj Object Diagram for an illustration of the relationship between BBj Objects.