Added fix to send scroll messages from mouse wheel instead of scrolling directly

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

diff --git a/docs/latex/wx/tbitmap.tex b/docs/latex/wx/tbitmap.tex
index 856b8df22045c166e04b26d2d509372b7bd68bdd..a5ed1140118d37b965f02255c006c56fd5d1240a 100644 (file)
--- a/docs/latex/wx/tbitmap.tex
+++ b/docs/latex/wx/tbitmap.tex
@@ -80,7 +80,7 @@ it to wxBitmap form. Note that using wxImage is the preferred way to
 load images in wxWindows, with the exception of resources (XPM-files or
 native Windows resources). Writing an image format handler for wxImage
 is also far easier than writing one for wxBitmap, because wxImage has
-exactly one format on all platforms wheras wxBitmap can store pixel data
+exactly one format on all platforms whereas wxBitmap can store pixel data
 very differently, depending on colour depths and platform.
 
 \wxheading{wxBitmap}
@@ -172,21 +172,23 @@ then call the static function \helpref{wxBitmap::AddHandler}{wxbitmapaddhandler}
 
 {\small
 \begin{verbatim}
-  #include <wx/pnghand.h>
   #include <wx/xpmhand.h>
   ...
   // Initialisation
-  wxBitmap::AddHandler(new wxPNGFileHandler);
   wxBitmap::AddHandler(new wxXPMFileHandler);
   wxBitmap::AddHandler(new wxXPMDataHandler);
   ...
 \end{verbatim}
 }
 
-Assuming the handlers have been written correctly, you should now be able to load and save PNG files
-and XPM files using the usual wxBitmap API.
+Assuming the handlers have been written correctly, you should now be able to load and save
+XPM files using the usual wxBitmap API.
 
 {\bf Note:} bitmap handlers are not implemented on all platforms. Currently, the above is only necessary on
 Windows, to save the extra overhead of formats that may not be necessary (if you don't use them, they
-are not linked into the executable). Unix platforms have PNG and XPM capability built-in (where supported).
+are not linked into the executable). Unix platforms have XPM capability built-in (where supported).
+
+Also, just because a handler (such as a PNG handler) is not present does not mean that
+wxBitmap does not support that file format. If wxBitmap fails to find a suitable handler,
+the file-loading capabilities of wxImage are used instead.