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Events for TreeView

View event list in hierarchical order.

Name Description Defining Class
Activating Sent by the object to itself whenever the object is first activated (placed on the screen) cUIObject
Command Sent from external controls DfBaseUIWindow
Construct_Object Object constructor. Initializes the object during object creation in class definitions cObject
Deactivating Sent to the object when it is being removed from the focus tree cUIObject
Destroy_Object Sent when an object is about to be destroyed cObject
End_Construct_Object End of object constructor. cObject
Entering Fires when the focus is about to move to a new object, sent to the object receiving the focus cUIObject
Entering_Scope Sent to the object if its scope_state is true, and one of the objects within its scope takes the focus cUIObject
Error_Report Used by the error object to display errors cUIObject
Exiting Fires when the focus is about to move to a new object, sent to the object losing the focus cUIObject
Exiting_Scope Sent whenever the focus is moving to an object that is outside the current scope cUIObject
Form_Button_Mouse_Down A notification that the form's button has been selected with the mouse DfBaseObject
Form_Button_Notification A notification of a form button event DfBaseObject
Item_Change A programming hook to perform an action when moving to another item DfBaseList
Key Augmented to implement the GUI keyboard interface DfBaseList
Mouse_Click Sent whenever the first button of the mouse is double clicked on an item or in the edit window of the object cUIObject
Mouse_Click2 Sent whenever the second button of the mouse is double clicked on an item or in the edit window of the object cUIObject
Mouse_Down Sent whenever the first button of the mouse is pressed down while on an item or in the edit window of the object cUIObject
Mouse_Down2 Sent whenever the second button of the mouse is pressed down while on an item or in the edit window of the object cUIObject
Mouse_Drag Sent whenever the first button of the mouse is being held down while users drag the mouse cursor from one item or edit line of the object to the next cUIObject
Mouse_Drag2 Sent whenever the second button of the mouse is being held down while users drag the mouse cursor from one item or edit line of the object to the next cUIObject
Mouse_Up Sent whenever the first button of the mouse is released while on an item is in the edit window of the object cUIObject
Mouse_Up2 Sent whenever the second button of the mouse is released while on an item is in the edit window of the object cUIObject
Notify_Application_Activation Sends OnActivateApp or OnDeactivateApp DfBaseObject
OnBeginDrag Fired on a mouse drag operation using the left mouse button AbstractTreeView
OnBeginLabelEdit Fired just prior to the user starting in-line editing of an item label AbstractTreeView
OnBeginningOfPanel Sent by panel to notify all its objects when a beginning_of_panel message is executed List
OnBeginRDrag Fired on a mouse drag operation using the right mouse button AbstractTreeView
OnChange Called when the data in this object changes List
OnCheckStateChange Fired when the checked state changes for an item TreeView
OnChildWrapping Called any time a wrapping event occurs cUIObject
OnCreateTree Fired when the tree is created TreeView
OnDeleteItem Fired prior to item deletion AbstractTreeView
OnDeltaPos Provides actions based on the amount of change in this object and/or its value at the point the focus is moved off it DfBaseObject
OnEndLabelEdit Fired if the user completes the edit when user performs in-line editing of the label AbstractTreeView
OnEnterArea Hook for entering an area, sent to the entered object's container and its parent containers cUIObject
OnEnterObject Hook for entering an object, sent to the entered object cUIObject
OnExitArea Hook for exiting an area, sent to the exited object's container and its parent containers cUIObject
OnExitObject Hook for exiting an object, sent to the exited object cUIObject
OnGetDispInfo Fired when control receives TVN_GETDISPINFO notification AbstractTreeView
OnGetInfoTip Fired when info tips for an item is requested AbstractTreeView
OnItemChanged Fired whenever the current item has just changed AbstractTreeView
OnItemChanging Fired whenever the current item is about to change AbstractTreeView
OnItemClick Fired whenever a user clicks an item AbstractTreeView
OnItemCollapsed Fired whenever a parent item has just been collapsed and its children hidden AbstractTreeView
OnItemCollapsing Fired whenever a parent item is about to be collapsed AbstractTreeView
OnItemDblClick Fired whenever a user double-clicks an item AbstractTreeView
OnItemEnter Fired whenever a user presses Enter on an item AbstractTreeView
OnItemExpanded Fired whenever a parent item has just been expanded to display its child items AbstractTreeView
OnItemExpanding Fired whenever an item is about to be opened AbstractTreeView
OnItemRClick Fired whenever a user clicks an item using the right mouse button AbstractTreeView
OnItemRDblClick Fired whenever a user double-clicks an item using the right mouse button AbstractTreeView
OnKeyDown Fired when a key is pressed AbstractTreeView
OnKillFocus Sent whenever the object is about to lose the focus List
OnSetDispInfo Fired when control receives TVN_SETDISPINFO notification AbstractTreeView
OnSetFocus Sent whenever windows is about to give this object the focus List
Page Used internally to create a Windows control for a DataFlex object cUIObject
Page_Delete Used internally to delete a Windows control for a DataFlex object cUIObject
Prompt_Callback Sends a callback event to an object that requested a prompt object List
Shadow_Display Called whenever a change in shadow state occurs, or when an object is paged List