#include <wx/event.h>
An erase event is sent when a window's background needs to be repainted.
On some platforms, such as GTK+, this event is simulated (simply generated just before the paint event) and may cause flicker. It is therefore recommended that you set the text background colour explicitly in order to prevent flicker. The default background colour under GTK+ is grey.
To intercept this event, use the EVT_ERASE_BACKGROUND macro in an event table definition.
You must call wxEraseEvent::GetDC and use the returned device context if it is non-NULL. If it is NULL, create your own temporary wxClientDC object.
The following event handler macros redirect the events to member function handlers 'func' with prototypes like:
Event macros:
wxEVT_ERASE_BACKGROUND
event. Public Member Functions | |
wxEraseEvent (int id=0, wxDC *dc=NULL) | |
Constructor. | |
wxDC * | GetDC () const |
Returns the device context associated with the erase event to draw on. |
wxEraseEvent::wxEraseEvent | ( | int | id = 0 , |
|
wxDC * | dc = NULL | |||
) |
Constructor.
wxDC* wxEraseEvent::GetDC | ( | ) | const |
Returns the device context associated with the erase event to draw on.
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