TcxGdiBasedCanvas Class

The base class for classes that implement GDI-based canvas in DevExpress controls.

Declaration

delphi

TcxGdiBasedCanvas = class(
    TcxCustomGdiBasedCanvas
)

This class implements multiple inherited abstract methods and extends its ancestor with the following members that allow you to:

Access a handle to the device context of the GDI-based canvas (Handle).
Obtain the initial and current origin points of the device context (BaseOrigin and DCOrigin).
Specify a position of the viewport origin (ViewportOrg).
Exclude a specified rectangle from the clip region (ExcludeClipRect).

Refer to the TcxCustomCanvas class description for detailed information on a common canvas API.

Do not use the TcxGdiBasedCanvas class directly. Use its descendants instead.