Must clear property selection in wxPGProperty::SetChoices() or risk a crash

[wxWidgets.git] / interface / wx / utils.h

diff --git a/interface/wx/utils.h b/interface/wx/utils.h
index 096429dee5b0087a83ad04a84977aac3f3d6c2f9..9bb227a63d50518abda7e36e80a387ffdc26612c 100644 (file)
--- a/interface/wx/utils.h
+++ b/interface/wx/utils.h
@@ -169,8 +169,9 @@ void wxInfoMessageBox(wxWindow parent = NULL);
 wxChar* wxGetenv(const wxString& var);
 
 /**
-    Returns the current value of the environment variable @c var in @c value.
-    @c value may be @NULL if you just want to know if the variable exists and
+    Returns the current value of the environment variable @a var in @a value.
+
+    @a value may be @NULL if you just want to know if the variable exists and
     are not interested in its value.
 
     Returns @true if the variable exists, @false otherwise.
@@ -180,10 +181,24 @@ wxChar* wxGetenv(const wxString& var);
 bool wxGetEnv(const wxString& var, wxString* value);
 
 /**
-    Sets the value of the environment variable @c var (adding it if necessary)
-    to @c value.
-
-    Returns @true on success.
+    Sets the value of the environment variable @a var (adding it if necessary)
+    to @a value.
+
+    Notice that under Windows platforms the program may have two different
+    environment blocks: the first one is that of a Windows process and is
+    always present, but the CRT may maintain its own independent copy of the
+    environment. wxSetEnv() will always update the first copy, which means that
+    wxGetEnv(), which uses it directly, will always return the expected value
+    after this call. But wxSetEnv() only updates the second copy for some
+    compilers/CRT implementations (currently only MSVC) and so using wxGetenv()
+    (notice the difference in case) may not return the updated value.
+
+    @param var
+        The environment variable to be set, must not contain @c '=' character.
+    @param value
+        New value of the variable.
+    @return
+        @true on success or @false if changing the value failed.
 
     @see wxUnsetEnv()
 
@@ -192,8 +207,9 @@ bool wxGetEnv(const wxString& var, wxString* value);
 bool wxSetEnv(const wxString& var, const wxString& value);
 
 /**
-    Removes the variable @c var from the environment. wxGetEnv() will return
-    @NULL after the call to this function.
+    Removes the variable @a var from the environment.
+
+    wxGetEnv() will return @NULL after the call to this function.
 
     Returns @true on success.
 
@@ -668,6 +684,23 @@ bool wxIsPlatform64Bit();
 */
 bool wxIsPlatformLittleEndian();
 
+/**
+    Returns a structure containing informations about the currently running
+    Linux distribution.
+    
+    This function uses the @c lsb_release utility which is part of the 
+    <tt>Linux Standard Base Core</tt> specification 
+    (see http://refspecs.linux-foundation.org/lsb.shtml) since the very first LSB 
+    release 1.0 (released in 2001).
+    The @c lsb_release utility is very common on modern Linux distributions but in
+    case it's not available, then this function will return a ::wxLinuxDistributionInfo
+    structure containing empty strings.
+    
+    This function is Linux-specific and is only available when the @c __LINUX__
+    symbol is defined.
+*/
+wxLinuxDistributionInfo wxGetLinuxDistributionInfo();
+
 //@}
 
 
@@ -747,9 +780,7 @@ bool wxIsPlatformLittleEndian();
     @header{wx/utils.h}
 
     @beginWxPerlOnly
-    This function is called @c Wx::ExecuteStdoutStderr and it only takes the
-    @a command argument, and returns a 3-element list (@c status, @c output,
-    @c errors), where @c output and @c errors are array references.
+    In wxPerl this function is called @c Wx::ExecuteCommand.
     @endWxPerlOnly
 */
 long wxExecute(const wxString& command, int flags = wxEXEC_ASYNC,
@@ -782,6 +813,10 @@ long wxExecute(const wxString& command, int flags = wxEXEC_ASYNC,
          wxLaunchDefaultApplication(), wxLaunchDefaultBrowser()
 
     @header{wx/utils.h}
+
+    @beginWxPerlOnly
+    In wxPerl this function is called @c Wx::ExecuteArgs.
+    @endWxPerlOnly
 */
 long wxExecute(char** argv, int flags = wxEXEC_ASYNC,
                 wxProcess* callback = NULL);
@@ -814,6 +849,12 @@ long wxExecute(wchar_t** argv, int flags = wxEXEC_ASYNC,
          wxLaunchDefaultApplication(), wxLaunchDefaultBrowser()
 
     @header{wx/utils.h}
+
+    @beginWxPerlOnly
+    This function is called @c Wx::ExecuteStdout: it only takes the
+    @a command argument, and returns a 2-element list (@c status, @c output),
+    where @c output in an array reference.
+    @endWxPerlOnly
 */
 long wxExecute(const wxString& command, wxArrayString& output, int flags = 0);
 
@@ -841,6 +882,12 @@ long wxExecute(const wxString& command, wxArrayString& output, int flags = 0);
          wxLaunchDefaultApplication(), wxLaunchDefaultBrowser()
 
     @header{wx/utils.h}
+
+    @beginWxPerlOnly
+    This function is called @c Wx::ExecuteStdoutStderr: it only takes the
+    @a command argument, and returns a 3-element list (@c status, @c output,
+    @c errors), where @c output and @c errors are array references.
+    @endWxPerlOnly
 */
 long wxExecute(const wxString& command, wxArrayString& output,
                 wxArrayString& errors, int flags = 0);