wx.AppTraits¶The wx.AppTraits class defines various configurable aspects of a wx.App.
You can access it using wx.App.GetTraits function and you can create your own wx.AppTraits overriding the wx.App.CreateTraits function.
Note that wx.AppTraits is an abstract class since it contains many pure virtual functions. In fact, by default, wxWidgets creates a ConsoleAppTraits object for console applications (i.e. those applications linked against Base library only - see the page) and a GUIAppTraits object for GUI applications. Both these classes are derived by wx.AppTraits and represent concrete implementation of the wx.AppTraits interface.
See also
Class Hierarchy¶
Inheritance diagram for class AppTraits:

Methods Summary¶Called by wxWidgets to create the default configuration object for the application. |
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Used by wxWidgets to create the main event loop used by |
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Creates a wx.Log class for the application to use for logging errors. |
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Helper function mostly useful for derived classes |
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Returns the name of the desktop environment currently running on a Unix desktop. |
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Returns the wx.StandardPaths object for the application. |
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Returns the wxWidgets port |
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Returns |
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Returns |
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Shows a message box with the given text and title if possible. |
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Shows the assert dialog with the specified message in GUI mode or just prints the string to stderr in console mode. |
Properties Summary¶See |
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Class API¶wx.AppTraits(object)¶The AppTraits class defines various configurable aspects of a App.
CreateConfig(self)¶Called by wxWidgets to create the default configuration object for the application.
The default version creates a registry-based RegConfig class under MSW and wx.FileConfig under all other platforms.
The wx.App.GetAppName and wx.App.GetVendorName methods are used to determine the registry key or file name.
CreateEventLoop(self)¶Used by wxWidgets to create the main event loop used by wx.App.OnRun .
The default implementation of this method in GUIAppTraits returns the usual platform-specific GUI event loop. The version in ConsoleAppTraits returns a console-specific event loop which can be used to handle timer and socket events in console programs under Unix and MSW or None under the other platforms where console event loops are not supported yet.
CreateLogTarget(self)¶Creates a wx.Log class for the application to use for logging errors.
The default implementation returns a new wx.LogGui class.
See also
GetAssertStackTrace(self)¶Helper function mostly useful for derived classes ShowAssertDialog implementation.
Returns the stack frame as a plain (and possibly empty) String .
This function is only available when USE_STACKWALKER is 1.
string
New in version 4.1/wxWidgets-3.1.5.
GetDesktopEnvironment(self)¶Returns the name of the desktop environment currently running on a Unix desktop.
It returns an empty string for platforms other than wxGTK, or if the desktop environment could not be determined.
string
GetStandardPaths(self)¶Returns the wx.StandardPaths object for the application.
It’s normally the same for Base and GUI except in the case of Mac and Cocoa.
Note
The returned reference is to a StandardPathsBase class but you can consider it to be equivalent to wx.StandardPaths (which is documented).
GetToolkitVersion(self)¶Returns the wxWidgets port ID used by the running program and eventually fills the given pointers with the values of the major, minor, and micro digits of the native toolkit currently used.
The version numbers returned are thus detected at run-time and not compile-time (except when this is not possible e.g. Motif).
E.g. if your program is using wxGTK port this function will return wx.PORT_GTK and put in given pointers the versions of the GTK library in use. See PlatformInfo for more details.
If a micro version is not available it will have a value of 0.
tuple
( wx.PortId, major, minor, micro )
HasStderr(self)¶Returns True if fprintf(stderr) goes somewhere, False otherwise.
bool
IsUsingUniversalWidgets(self)¶Returns True if the library was built as wxUniversal.
Always returns False for Base-only apps.
bool
SafeMessageBox(self, text, title)¶Shows a message box with the given text and title if possible.
In some ports, e.g. wxMSW, a message box will always be shown, while in the other ones it will be only done if the GUI is available (e.g. X11 display was successfully opened for X11-based ports) and the function simply returns False without doing anything otherwise.
This function is safe in the sense that it can always be called, even before creating wx.App, similarly to wx.SafeShowMessage which is implemented by calling this function and then logging the message to standard error stream if it returned False.
text (string) – The text to show to the user.
title (string) – The title of the message box shown to the user.
bool
True if the message box was shown or False otherwise.
New in version 4.1/wxWidgets-3.1.5.
ShowAssertDialog(self, msg)¶Shows the assert dialog with the specified message in GUI mode or just prints the string to stderr in console mode.
Returns True to suppress subsequent asserts, False to continue as before.
msg (string) –
bool
AssertStackTrace¶DesktopEnvironment¶StandardPaths¶See GetStandardPaths
ToolkitVersion¶