BBjMenuButton::removeDropdownMenu


Description

In BBj 7.0 and higher, this BBjMenuButton method removes the dropdown menu from a menu button control.

Syntax

Return Value

Method

void

removeDropdownMenu()

Parameters 

None.

Return Value

None.

Remarks

None.

Example

REM Remove the dropdown menu from a menu button control

REM Obtain the instance of the BBjAPI object
LET myAPI!=BBjAPI()

REM Open the SysGui device
SYSGUI=UNT
OPEN (SYSGUI)"X0"
DIM EVENT$:TMPL(SYSGUI)

REM Obtain the instance of the BBjSysGui object
LET mySysGui!=myAPI!.getSysGui()

REM Set addWindow param values
X=100
Y=100
WIDTH=200
HEIGHT=100
TITLE$="BBj Window"

REM Set the current context
mySysGui!.setContext(0)
REM Create a window with a title in the current context
myWindow! = mySysGui!.addWindow(X,Y,WIDTH,HEIGHT,TITLE$)

REM Create BBjMenuButtons
menuButton1! = myWindow!.addMenuButton(101,0,0,100,22,"MenuButton1")
menuButton2! = myWindow!.addMenuButton(102,100,0,100,22,"MenuButton2")

REM Create a dropdown menu
myDropdownMenu!=mySysGui!.addPopupMenu()
myDropdownItem1! = myDropdownMenu!.addMenuItem(-201,"Dropdown Item 1")
myDropdownItem2! = myDropdownMenu!.addMenuItem(-202,"Dropdown Item 2")

REM Associate dropdown menu with the buttons
menuButton1!.setDropdownMenu(myDropdownMenu!)
menuButton2!.setDropdownMenu(myDropdownMenu!)

REM Create a popup menu
myPopupMenu!=mySysGui!.addPopupMenu()
myPopupItem1! = myPopupMenu!.addMenuItem(-301,"Popup Item 1")
myPopupItem2! = myPopupMenu!.addMenuItem(-302,"Popup Item 2")

REM Associate popup menu with the buttons
menuButton1!.setPopupMenu(myPopupMenu!)
menuButton2!.setPopupMenu(myPopupMenu!)

REM Register the CALLBACK routines
CALLBACK(ON_BUTTON_PUSH,MenuButton1,mySysGui!.getContext(),MenuButton1!.getID())
CALLBACK(ON_BUTTON_PUSH,MenuButton2,mySysGui!.getContext(),MenuButton2!.getID())
CALLBACK(ON_POPUP_ITEM_SELECT,DropdownItem1,myDropdownMenu!.getID(),myDropdownItem1!.getID())
CALLBACK(ON_POPUP_ITEM_SELECT,DropdownItem2,myDropdownMenu!.getID(),myDropdownItem2!.getID())
CALLBACK(ON_POPUP_ITEM_SELECT,PopupItem1,myPopupMenu!.getID(),myPopupItem1!.getID())
CALLBACK(ON_POPUP_ITEM_SELECT,PopupItem2,myPopupMenu!.getID(),myPopupItem2!.getID())
CALLBACK(ON_CLOSE,APP_CLOSE,mySysGui!.getContext())

REM Process Events
PROCESS_EVENTS

REM Callback routine invoked when the user clicks the button
MenuButton1:
event! = mySysGui!.getLastEvent()
event$ = mySysGui!.getLastEventString()
i = msgbox("MenuButton1 was clicked")
return

REM Callback routine invoked when the user clicks the button
MenuButton2:
event! = mySysGui!.getLastEvent()
event$ = mySysGui!.getLastEventString()
if menuButton2!.getDropdownMenu() = null()
   i = msgbox("MenuButton2 was clicked.")
else
   menuButton2!.removeDropdownMenu()
   i = msgbox("MenuButton2 was clicked; dropdown menu was removed.")
endif
return

REM Callback routine invoked when the user selects the first dropdown item
DropdownItem1:
event! = mySysGui!.getLastEvent()
event$ = mySysGui!.getLastEventString()
i = msgbox("Dropdown Item 1 was selected on "+event!.getControl().getText())
return

REM Callback routine invoked when the user selects the second dropdown item
DropdownItem2:
event! = mySysGui!.getLastEvent()
event$ = mySysGui!.getLastEventString()
i = msgbox("Dropdown Item 2 was selected on "+event!.getControl().getText())
return

REM Callback routine invoked when the user selects the first popup item
PopupItem1:
event! = mySysGui!.getLastEvent()
event$ = mySysGui!.getLastEventString()
i = msgbox("Popup Item 1 was selected on "+event!.getControl().getText())
return

REM Callback routine invoked when the user selects the second popup item
PopupItem2:
event! = mySysGui!.getLastEvent()
event$ = mySysGui!.getLastEventString()
i = msgbox("Popup Item 2 was selected on "+event!.getControl().getText())
return

REM Callback routine called when the user closes the application window
APP_CLOSE:
RELEASE

See Also

BBjAPI

Object Variables

BBjDropdownMenu

BBjControl::addDropdownMenu

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