added wxEVT_SCROLL_CHANGED as synonym for wxEVT_SCROLL_ENDSCROLL

[wxWidgets.git] / docs / latex / wx / image.tex

diff --git a/docs/latex/wx/image.tex b/docs/latex/wx/image.tex
index 9d95417a0c4007b3c3aad84e40820b93597d64bd..9cf68bb2a00dd5a8af521cf4d360417e643410a8 100644 (file)
--- a/docs/latex/wx/image.tex
+++ b/docs/latex/wx/image.tex
@@ -270,7 +270,7 @@ Returns number of colours in the histogram.
 
 \membersection{wxImage::ConvertAlphaToMask}\label{wximageconvertalphatomask}
 
-\func{bool}{ConvertAlphaToMask}{\param{unsigned char}{ threshold = 128}}
+\func{bool}{ConvertAlphaToMask}{\param{unsigned char}{ threshold = $128$}}
 
 If the image has alpha channel, this method converts it to mask. All pixels
 with alpha value less than \arg{threshold} are replaced with mask colour
@@ -708,6 +708,15 @@ of a given handler class in an application session.}
 \helpref{wxImageHandler}{wximagehandler}
 
 
+\membersection{wxImage::IsTransparent}\label{wximageistransparent}
+
+\constfunc{bool}{IsTransparent}{\param{int }{x}, \param{int }{y}, \param{unsigned char}{ threshold = $128$}}
+
+Returns \true if the given pixel is transparent, i.e. either has the mask
+colour if this image has a mask or if this image has alpha channel and alpha
+value of this pixel is strictly less than \arg{threshold}.
+
+
 \membersection{wxImage::LoadFile}\label{wximageloadfile}
 
 \func{bool}{LoadFile}{\param{const wxString\&}{ name}, \param{long}{ type = wxBITMAP\_TYPE\_ANY}, \param{int}{ index = -1}}