Applies to:

DQChart Active X Control

Description:

Fires when the crosshair is activated pausing the continuous stream visually. Your device continues to acquire data when the crosshair is activated but visually pauses the chart. This event passes back the location of the crosshair as offset from the leftmost point in the chart in pixels (i.e., the leftmost point on the chart would output 0). The crosshair can only be activated when the Lock property is set to True.

Example:

Private Sub DataqSdk1_ NewData(ByVal Count As Integer)

DQChart1. Chart (DataqSdk1. GetData)

End Sub

Private Sub Form_Load()

DQChart1. Lock = True

End Sub

Private Sub Start_Click()

DataqSdk1. EventPoint = 20

DataqSdk1. Start

End Sub

Private Sub Stop_Click()

DataqSdk1. Stop

End Sub

Private Sub DQChart1_CrossHair(ByVal Offset As Long)

'this gives the location of the crosshair - the location is determined in terms of the Xmax of the chart so the leftmost point on the chart would be 0 (i.e., if you place the crosshair on the leftmost point of the chart the returned value would be 0)

Label1.Caption = Offset

End Sub