wxPaintDC(3)

NAME
wxPaintDC - A wxPaintDC must be constructed if an application wishes to paint on the client area of a window from within an EVT_PAINT() event handler.

DESCRIPTION

This should normally be constructed as a temporary stack object; don't store a wxPaintDC object. If you have an EVT_PAINT() handler, you must create a wxPaintDC object within it even if you don't actually use it.

Using wxPaintDC within your EVT_PAINT() handler is important because it automatically sets the clipping area to the damaged area of the window. Attempts to draw outside this area do not appear.

A wxPaintDC object is initialized to use the same font and colours as the window it is associated with.

See:

    • wxDC

    • wxClientDC

    • wxMemoryDC

    • wxWindowDC

    • wxScreenDC

This class is derived, and can use functions, from:

    • wxWindowDC

    • wxDC

wxWidgets docs: wxPaintDC

DATA TYPES

wxPaintDC() :: wx:wx_object().

FUNCTIONS

destroy(This :: wxPaintDC()) -> ok.

    Destroys the object
new(Window) -> wxPaintDC() when Window :: wxWindow:wxWindow().

    Constructor.

    Pass a pointer to the window on which you wish to paint.