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Mention graphics device classes

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@53342 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
2008-04-25 10:06:26 +00:00
parent 28792a701f
commit 12133c3b42
1 changed files with 6 additions and 3 deletions
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9
interface/dc.h
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@@ -15,6 +15,10 @@
a window can have a device context associated with it, and a printer also a window can have a device context associated with it, and a printer also
has a device context. In this way, the same piece of code may write to a has a device context. In this way, the same piece of code may write to a
number of different devices, if the device context is used as a parameter. number of different devices, if the device context is used as a parameter.
wxWidgets offers alternative drawing classes based on the modern drawing
backends GDI+, CoreGraphics and Cairo. See wxGraphicsContext, wxGraphicsRenderer
and related classes.
Notice that wxDC is an abstract base class and can't be created directly, Notice that wxDC is an abstract base class and can't be created directly,
please use wxPaintDC, wxClientDC, wxWindowDC, wxScreenDC, wxMemoryDC or please use wxPaintDC, wxClientDC, wxWindowDC, wxScreenDC, wxMemoryDC or
@@ -32,9 +36,8 @@
@section dc_alpha Support for Transparency / Alpha Channel @section dc_alpha Support for Transparency / Alpha Channel
On Mac OS X, when using Core Graphics (wxMAC_USE_CORE_GRAPHICS set to 1), On Mac OS X colors with alpha are supported. Instances wxPen or wxBrush
colors with alpha are supported. Instances wxPen or wxBrush that are built that are built from wxColour use the color's alpha values when stroking or filling.
from wxColour use the color's alpha values when stroking or filling.
@library{wxcore} @library{wxcore}
@category{dc,gdi} @category{dc,gdi}