ITBarCodeEvents.MouseDown
void MouseDown([in] SHORT nButton, [in] SHORT nShift, [in] OLE_XPOS_PIXELS x, [in] OLE_YPOS_PIXELS y)Fired when a mouse button is pressed over the control.
void MouseDown([in] SHORT nButton, [in] SHORT nShift, [in] OLE_XPOS_PIXELS x, [in] OLE_YPOS_PIXELS y)Fired when a mouse button is pressed over the control.