TTMSFNCPlanner.OnBeforeDrawItemHelperText Event
Occurs before item helper text is drawn.
API unit family: TMSFNCPlanner
Declaring type: TTMSFNCPlanner
Inherited from: TTMSFNCCustomPlanner
Syntax
OnBeforeDrawItemHelperText: TTMSFNCPlannerBeforeDrawItemHelperTextEvent;
Parameters
| Name | Description |
|---|---|
Sender |
Object that triggered the event. |
AGraphics |
Graphics context used for drawing. |
ARect |
Rectangle affected by the event in control coordinates. |
AItem |
Planner item affected by the event. |
AIsStartTime |
Indicates whether the helper represents the start time. |
AValue |
Time or coordinate value associated with the event. |
AText |
Text value that can be inspected or changed by the handler. |
AAllow |
Set to False to cancel the drawing or operation. |