f53561f1f0
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2806 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
42 lines
1.3 KiB
TeX
42 lines
1.3 KiB
TeX
\section{\class{wxPaintDC}}\label{wxpaintdc}
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A wxPaintDC must be constructed if an application wishes to paint on the
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client area of a window from within an {\bf OnPaint} event.
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This should normally be constructed as a temporary stack object; don't store
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a wxPaintDC object. If you have an OnPaint handler, you {\it must} create a wxPaintDC
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object within it even if you don't actually use it.
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Using wxPaintDC within OnPaint is important because it automatically
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sets the clipping area to the damaged area of the window. Attempts to draw
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outside this area do not appear.
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To draw on a window from outside {\bf OnPaint}, construct a \helpref{wxClientDC}{wxclientdc} object.
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To draw on the whole window including decorations, construct a \helpref{wxWindowDC}{wxwindowdc} object
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(Windows only).
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\wxheading{Derived from}
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\helpref{wxWindowDC}{wxwindowdc}\\
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\helpref{wxDC}{wxdc}
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\wxheading{Include files}
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<wx/dcclient.h>
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\wxheading{See also}
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\helpref{wxDC}{wxdc}, \helpref{wxMemoryDC}{wxmemorydc}, \helpref{wxPaintDC}{wxpaintdc},\rtfsp
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\helpref{wxWindowDC}{wxwindowdc}, \helpref{wxScreenDC}{wxscreendc}
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\latexignore{\rtfignore{\wxheading{Members}}}
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\membersection{wxPaintDC::wxPaintDC}
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\func{}{wxPaintDC}{\param{wxWindow*}{ window}}
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Constructor. Pass a pointer to the window on which you wish to paint.
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