MouseDown Event

In This Topic

Description

Fired on mouse down

Syntax

Visual Basic
Public Event MouseDown( _ ByVal Button As Integer, _ ByVal Shift As Integer, _ ByVal x As Long, _ ByVal y As Long _ )

Visual Basic

Public Event MouseDown( _
   ByVal Button As Integer, _
   ByVal Shift As Integer, _
   ByVal x As Long, _
   ByVal y As Long _
)

Parameters

Button: Represents the mouse button pressed or released
Shift: State of the Ctrl, Shift and Alt keys
x: The mouse position, relative to the DicomViewer control.
y: The mouse position, relative to the DicomViewer control.

Remarks

These events are essentially Microsoft standard mouse events, except that the x and y positions are specified as long integers representing display pixels rather than OLE_PIXELS. This avoids the transformations applied by some clients such as Visual Basic, guaranteeing that the values are compatible with DicomObject’s scrolling and drawing functions.
Due to a bug in Visual Basic, DicomViewer controls placed on a VB form do not receive events related to pressing arrow keys.