Interface MultiSourceEvent
Description
In BBj 7.0 and higher, a number of BBjEvent Objects can be generated from numerous controls. These BBjEvents implement the interface MultiSourceEvent. The interface allows a program to retrieve the source of the event cast to a specifed type.
Implementing Classes
BBjDragSourceDropEvent, BBjDropTargetDropEvent, BBjGainedFocusEvent, BBjLostFocusEvent, BBjMouseEnterEvent, BBjMouseExitEvent, BBjPopupRequestEvent, BBjRightMouseDownEvent
Methods of MultiSourceEvent
|
Return Value |
Method |
|
getCEdit() |
|
|
getTree() |
Example
open(unt)"X0"
sg!=BBjAPI().getSysGui()
win! = sg!.addWindow(10,10,300,300,"")
cedit! = win!.addCEdit(101, 10,10,80,140,"cedit")
button! = win!.addButton(102, 10,210,80,40,"button")
handler! = new EventHandler()
cedit!.setCallback(cedit!.ON_GAINED_FOCUS, handler!, "handleEvent")
button!.setCallback(button!.ON_GAINED_FOCUS, handler!, "handleEvent")
process_events
class public EventHandler
field public BBjControl control!
method public void handleEvent(MultiSourceEvent event!)
#control! = event!.getCEdit(err = getButton)
print "CEdit received focus"
methodret
getButton:
#control! = event!.getButton(err = getWindow)
print "button received focus"
methodret
getWindow:
#control! = event!.getTopLevelWindow()
print "window received focus"
methodret
methodend
classend