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documented static_data parameter of SetAlpha()

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@33283 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2005-04-02 21:20:23 +00:00
parent d2502f1471
commit 60b1fda237
1 changed files with 5 additions and 3 deletions
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8
docs/latex/wx/image.tex
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@@ -98,7 +98,7 @@ and forth without loss in that respect.
Creates an image with the given width and height. If {\it clear} is true, the new image will be initialized to black.
Otherwise, the image data will be uninitialized.
\func{}{wxImage}{\param{int}{ width}, \param{int}{ height}, \param{unsigned char*}{ data}, \param{bool}{ static\_data=false}}
\func{}{wxImage}{\param{int}{ width}, \param{int}{ height}, \param{unsigned char*}{ data}, \param{bool}{ static\_data = \false}}
Creates an image from given data with the given width and height. If
{\it static\_data} is true, then wxImage will not delete the actual
@@ -1023,14 +1023,16 @@ suitable mask colour for any newly exposed areas.
\membersection{wxImage::SetAlpha}\label{wximagesetalpha}
\func{void}{SetAlpha}{\param{unsigned char *}{alpha = {\tt NULL}}}
\func{void}{SetAlpha}{\param{unsigned char *}{alpha = {\tt NULL}},\param{bool}{ static\_data = \false}}
This function is similar to \helpref{SetData}{wximagesetdata} and has similar
restrictions. The pointer passed to it may however be {\tt NULL} in which case
the function will allocate the alpha array internally -- this is useful to add
alpha channel data to an image which doesn't have any. If the pointer is not
{\tt NULL}, it must have one byte for each image pixel and be allocated with
{\tt malloc()}. wxImage takes ownership of the pointer and will free it.
{\tt malloc()}. wxImage takes ownership of the pointer and will free it unless
\arg{static\_data} parameter is set.to \true -- in this case the caller should
do it.
\func{void}{SetAlpha}{\param{int }{x}, \param{int }{y}, \param{unsigned char }{alpha}}