Scroll

Description

This event is fired each time the live video display has been scrolled. Returns the horizontal and vertical scroll positions.


Syntax

[VB]
Private Sub objActiveDcam_Scroll( ByVal X As Integer, ByVal Y As Integer )

[C/C++]
HRESULT Fire_Scroll( SHORT ScrollX, SHORT ScrollY );


Data Types [VB]

ScrollX: Integer
ScrollY: Integer


Parameters [C/C++]

ScrollX [in]

The X-coordinate of the pixel pointed by the cursor.

ScrollY [in]

The Y-coordinate of the pixel pointed by the cursor.

   

Return Values

S_OK

Success

E_FAIL

Failure.

Example

This VB example uses the Scroll event to display the position of the live video in the control window:

Private Sub ActiveDcam1_Scroll(ByVal ScrollX As Integer, ByVal ScrollY As Integer)

Label1.Caption = ScrollX

Label2.Caption = ScrollY

End Sub

Remarks

Note that the scroll positions returned by this event refer to the image coordinate system, not to the screen coordinates.

The ScrollBars properties to TRUE in order for the Scroll event to be fired.