Amebis/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

documented static_data parameter of SetAlpha()

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

8
docs/latex/wx/image.tex
View File

@@ -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. 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. 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 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 {\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} \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 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 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 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 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 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}} \func{void}{SetAlpha}{\param{int }{x}, \param{int }{y}, \param{unsigned char }{alpha}}