added support for reading alpha channel

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

diff --git a/docs/latex/wx/filedlg.tex b/docs/latex/wx/filedlg.tex
index 63d4a9bd1a1acdd32dbf617cb0460a2b8ef93647..36657dadfe73af7dc5f9d425a97bddc1c23ff9d7 100644 (file)
--- a/docs/latex/wx/filedlg.tex
+++ b/docs/latex/wx/filedlg.tex
@@ -26,7 +26,7 @@ If path is ``", the current directory will be used. If filename is ``",
 no default filename will be supplied. The wildcard determines what files
 are displayed in the file selector, and file extension supplies a type
 extension for the required filename. Flags may be a combination of wxOPEN,
-wxSAVE, wxOVERWRITE\_PROMPT, wxHIDE\_READONLY, wxMULTIPLE or 0.
+wxSAVE, wxOVERWRITE\_PROMPT, wxHIDE\_READONLY, wxFILE\_MUST\_EXIST, wxMULTIPLE or 0.
 
 Both the X and Windows versions implement a wildcard filter. Typing a
 filename containing wildcards (*, ?) in the filename text item, and
@@ -38,6 +38,13 @@ types of file with a description for each, such as:
  "BMP files (*.bmp)|*.bmp|GIF files (*.gif)|*.gif"
 \end{verbatim}
 
+It must be noted that wildcard support in the native Motif file
+dialog is quite limited: only one alternative is supported,
+and it is displayed without the descriptive test; ``BMP files (*.bmp)|*.bmp''
+is displayed as ``*.bmp'', and both
+``BMP files (*.bmp)|*.bmp|GIF files (*.gif)|*.gif'' and
+``Image files|*.bmp;*.gif'' are errors.
+
 \latexignore{\rtfignore{\wxheading{Members}}}
 
 \membersection{wxFileDialog::wxFileDialog}\label{wxfiledialogconstr}
@@ -58,7 +65,10 @@ Constructor. Use \helpref{wxFileDialog::ShowModal}{wxfiledialogshowmodal} to sho
 
 \docparam{defaultFile}{The default filename, or the empty string.}
 
-\docparam{wildcard}{A wildcard, such as ``*.*".}
+\docparam{wildcard}{A wildcard, such as ``*.*" or ``BMP files (*.bmp)|*.bmp|GIF files (*.gif)|*.gif".
+
+Note that the native Motif dialog has some limitations with respect to
+wildcards; see the Remarks section above.}
 
 \docparam{style}{A dialog style. A bitlist of:
 
@@ -66,14 +76,22 @@ Constructor. Use \helpref{wxFileDialog::ShowModal}{wxfiledialogshowmodal} to sho
 \begin{twocollist}
 \twocolitem{{\bf wxOPEN}}{This is an open dialog.}
 \twocolitem{{\bf wxSAVE}}{This is a save dialog.}
-\twocolitem{{\bf wxHIDE\_READONLY}}{Hide read-only files.}
-\twocolitem{{\bf wxOVERWRITE\_PROMPT}}{Prompt for a conformation if a file will be overridden.}
-\twocolitem{{\bf wxMULTIPLE}}{For open dialog only: allows selecting multiple files}
+\twocolitem{{\bf wxHIDE\_READONLY}}{For open dialog only: hide the checkbox allowing to open the file in read-only mode.}
+\twocolitem{{\bf wxOVERWRITE\_PROMPT}}{For save dialog only: prompt for a confirmation if a file will be overwritten.}
+\twocolitem{{\bf wxMULTIPLE}}{For open dialog only: allows selecting multiple files.}
+\twocolitem{{\bf wxCHANGE\_DIR}}{Change the current working directory to the directory where the file(s) chosen by the user are.}
 \end{twocollist}%
 }
 
 \docparam{pos}{Dialog position. Not implemented.}
 
+{\bf NB:} Previous versions of wxWindows used {\tt wxCHANGE\_DIR} by default
+under MS Windows which allowed the program to simply remember the last
+directory where user selected the files to open/save. This (desired)
+functionality must be implemented in the program itself now (manually remember
+the last path used and pass it to the dialog the next time it is called) or
+by using this flag.
+
 \membersection{wxFileDialog::\destruct{wxFileDialog}}
 
 \func{}{\destruct{wxFileDialog}}{\void}
@@ -156,7 +174,7 @@ Sets the default filename.
 
 \func{void}{SetFilterIndex}{\param{int }{filterIndex}}
 
-Sets the default filter index, starting from zero. Windows only.
+Sets the default filter index, starting from zero.
 
 \membersection{wxFileDialog::SetMessage}\label{wxfiledialogsetmessage}
 
@@ -180,13 +198,18 @@ Sets the dialog style. See \helpref{wxFileDialog::wxFileDialog}{wxfiledialogcons
 
 \func{void}{SetWildcard}{\param{const wxString\& }{wildCard}}
 
-Sets the wildcard, which in Windows can contain multiple file types.
+Sets the wildcard, which can contain multiple file types, for example:
+
+``BMP files (*.bmp)|*.bmp|GIF files (*.gif)|*.gif"
+
+Note that the native Motif dialog has some limitations with respect to
+wildcards; see the Remarks section above.
 
 \membersection{wxFileDialog::ShowModal}\label{wxfiledialogshowmodal}
 
 \func{int}{ShowModal}{\void}
 
-Shows the dialog, returning wxID\_OK if the user pressed OK, and wxOK\_CANCEL
+Shows the dialog, returning wxID\_OK if the user pressed OK, and wxID\_CANCEL
 otherwise.