TTMSFNCCustomTrackBarBaseBeforeDrawTrackLine Event Type
Event type fired before the track line is drawn.
API unit family: TMSFNCTrackBar
Parameters
| Name | Description |
|---|---|
Sender |
Control that is drawing the track line. |
AGraphics |
Graphics context used for custom drawing. |
ARect |
Track line bounds in control coordinates. |
AAllow |
Set to False to skip drawing the track line. |
ADefaultDraw |
Set to False after custom drawing to prevent the default track line rendering. |