TdxNavBarCustomDrawEvent Type
The NavBar control’s general custom draw event type.
Declaration
TdxNavBarCustomDrawEvent = procedure(Sender: TObject; ACanvas: TCanvas; AViewInfo: TdxNavBarViewInfo; var AHandled: Boolean) of object;
Parameters
Name | Type |
---|---|
Sender | TObject |
ACanvas | TCanvas |
AViewInfo | TdxNavBarViewInfo |
AHandled | Boolean |
Remarks
Use the Sender parameter to access the NavBar control that raised a TdxNavBarCustomDrawEvent
event. Cast the parameter value to the TdxNavBar class to access the control’s API members.
The ACanvas and AViewInfo parameters allow you to access the drawing surface and ViewInfo information (refer to the TdxNavBarViewInfo class description for details) used to draw the NavBar control.
Assign True
to the AHandled parameter to disable the default NavBar draw routines.
See Also