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Showing content from https://wxpython.org/Phoenix/docs/html/wx.ContextHelp.html below:

wx.ContextHelp — wxPython Phoenix 4.2.4a1 documentation

This class changes the cursor to a query and puts the application into a ‘context-sensitive help mode’.

When the user left-clicks on a window within the specified window, a wxEVT_HELP event is sent to that control, and the application may respond to it by popping up some help.

For example:

contextHelp = wx.ContextHelp(myWindow)

There are a couple of ways to invoke this behaviour implicitly:

• Use the wx.DIALOG_EX_CONTEXTHELP style for a dialog (Windows only). This will put a question mark in the titlebar, and Windows will put the application into context-sensitive help mode automatically, with further programming.

• Create a wx.ContextHelpButton, whose predefined behaviour is to create a context help object. Normally you will write your application so that this button is only added to a dialog for non-Windows platforms (use wx.DIALOG_EX_CONTEXTHELP on Windows).

Note that on macOS, the cursor does not change when in context-sensitive help mode.

Inheritance diagram for class

:

__init__

Constructs a context help object, calling BeginContextHelp if doNow is True (the default).

BeginContextHelp

Puts the application into context-sensitive help mode.

EndContextHelp

Ends context-sensitive help mode.

class wx.ContextHelp(Object)¶

Possible constructors:

ContextHelp(window=None, doNow=True) -> None

This class changes the cursor to a query and puts the application into a ‘context-sensitive help mode’.

Methods¶

__init__(self, window=None, doNow=True)¶

Constructs a context help object, calling BeginContextHelp if doNow is True (the default).

If window is None, the top window is used.

Parameters:

• window (wx.Window)

• doNow (bool)

Return type:

None

BeginContextHelp(self, window)¶

Puts the application into context-sensitive help mode.

window is the window which will be used to catch events; if None, the top window will be used.

Returns True if the application was successfully put into context-sensitive help mode. This function only returns when the event loop has finished.

Parameters:

window (wx.Window)

Return type:

bool

EndContextHelp(self)¶

Ends context-sensitive help mode.

Not normally called by the application.

Return type:

bool

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