CanSnapPoint Method (GoGrid)

This predicate is called by GoView.GoView.SnapPoint to decide whether this grid should take part.

Syntax

Visual Basic
C#

'Declaration
 
Public Overridable Function CanSnapPoint( _
   ByVal p As PointF, _
   ByVal obj As GoObject, _
   ByVal view As GoView _
) As Boolean

public virtual bool CanSnapPoint( 
   PointF p,
   GoObject obj,
   GoView view
)

Parameters

p: a PointF in document coordinates
obj: the object being moved or resized (may be null/nothing)
view: the GoView in which the snapping is occuring; may be null/nothing

Return Value

true if GoView.GoView.SnapPoint should call GoGrid.SnapPoint

Remarks

This considers the SnapDrag property (or the SnapResize property if resizing). If view is not null and the current GoView.Tool is either GoToolResizing or GoToolDragging, this method checks whether the GoView.LastInput point is within the grid; if the view is null or another type of tool is currently in use, it checks whether the given point p is within the grid. This predicate is false if GoObject.CanView returns false, but this predicate is not affected by the value of Style or any other properties that control this grid's appearance. To avoid confusion in some common cases, this predicate is also false if the obj is this grid itself, or if this grid GoObject.IsChildOf the obj, or if this grid is part of the view's Selection.

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

GoGrid Class
GoGrid Members