HitTestCanvas Method

In This Topic

Returns the index of the mark located at the screen position [x, y].

Syntax

Visual Basic
C#
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Function HitTestCanvas( _
   ByVal devicePoint As ImGearDoublePoint, _
   ByVal pageView As IImGearScrollableView, _
   ByVal context As Canvas, _
   ByVal offsetLeft As Integer, _
   ByVal offsetTop As Integer _
) As Integer

'Usage
 
Dim instance As ImGearPresentationPageDisplay
Dim devicePoint As ImGearDoublePoint
Dim pageView As IImGearScrollableView
Dim context As Canvas
Dim offsetLeft As Integer
Dim offsetTop As Integer
Dim value As Integer
 
value = instance.HitTestCanvas(devicePoint, pageView, context, offsetLeft, offsetTop)

public int HitTestCanvas( 
   ImGearDoublePoint devicePoint,
   IImGearScrollableView pageView,
   Canvas context,
   int offsetLeft,
   int offsetTop
)

public: int HitTestCanvas( 
   ImGearDoublePoint devicePoint,
   IImGearScrollableView* pageView,
   Canvas* context,
   int offsetLeft,
   int offsetTop
)

public:
int HitTestCanvas( 
   ImGearDoublePoint devicePoint,
   IImGearScrollableView^ pageView,
   Canvas^ context,
   int offsetLeft,
   int offsetTop
)

Parameters

devicePoint: Screen position.
pageView: PageView control that contains the marks.
context: System context.
offsetLeft: Offset from left.
offsetTop: Offset from top.

Return Value

Integer value.

Remarks

If there are no marks at [x,y], the return value from this method is -1.

Reference

ImGearPresentationPageDisplay Class
ImGearPresentationPageDisplay Members

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