View Source wxGCDC (wx v2.4.2)

Functions for wxGCDC class

wxGCDC is a device context that draws on a wxGraphicsContext.

wxGCDC does its best to implement wxDC API, but the following features are not (fully) implemented because wxGraphicsContext doesn't support them:

See: wxDC, wxGraphicsContext

This class is derived (and can use functions) from: wxDC

wxWidgets docs: wxGCDC

Summary

Types

wxGCDC()

Functions

destroy(This)

getGraphicsContext(This)

Retrieves associated wxGraphicsContext.

new()

new(WindowDC)

Constructs a wxGCDC from a wxWindowDC.

setGraphicsContext(This, Context)

Set the graphics context to be used for this wxGCDC.

Types

wxGCDC()

-type wxGCDC() :: wx:wx_object().

Functions

destroy(This)

-spec destroy(This :: wxGCDC()) -> ok.

getGraphicsContext(This)

-spec getGraphicsContext(This) -> wxGraphicsContext:wxGraphicsContext() when This :: wxGCDC().

Retrieves associated wxGraphicsContext.

new()

-spec new() -> wxGCDC().

new(WindowDC)

-spec new(WindowDC) -> wxGCDC()
             when
                 WindowDC ::
                     wxWindowDC:wxWindowDC() |
                     wxMemoryDC:wxMemoryDC() |
                     wxGraphicsContext:wxGraphicsContext().

Constructs a wxGCDC from a wxWindowDC.

setGraphicsContext(This, Context)

-spec setGraphicsContext(This, Context) -> ok
                            when This :: wxGCDC(), Context :: wxGraphicsContext:wxGraphicsContext().

Set the graphics context to be used for this wxGCDC.

Note that this object takes ownership of context and will delete it when it is destroyed or when setGraphicsContext/2 is called again.

Also, unlike the constructor taking wxGraphicsContext, this method will reapply the current font, pen and brush, so that this object continues to use them, if they had been changed before (which is never the case when constructing wxGCDC directly from wxGraphicsContext).