a0298f3149
This is especially important under MSW, where the modality of the nested event loops actually ends as soon as wxModalEventLoop::Exit() is called, and so we must avoid dispatching any events in the current loop after it happens or we risk reentering the same loop again, which could result in e.g. parent modal dialog being closed before the child event loop returns (because the event closing the former was dispatched from the latter) and other unexpected sequences of events. To prevent this from happening, only dispatch pending events after the loop exit if it's the outermost loop, as there should be no danger in doing it in this case. Conversely, we don't lose anything by not doing this in nested event loops as the outer loop will take care of any remaining pending events anyhow. To make this work in an ABI-compatible way, add a global counter of the currently existing event loops which is used to check if there is more than one event loop currently running. Closes #11273, #11573, #11269.
About
wxWidgets is a free and open source cross-platform C++ framework for writing advanced GUI applications using native controls.
wxWidgets allows you to write native-looking GUI applications for all the major desktop platforms and also helps with abstracting the differences in the non-GUI aspects between them. It is free for the use in both open source and commercial applications, comes with the full, easy to read and modify, source and extensive documentation and a collection of more than a hundred examples. You can learn more about wxWidgets at https://www.wxwidgets.org/ and read its documentation online at http://docs.wxwidgets.org/
Platforms
wxWidgets currently supports the following primary platforms:
- Windows XP, Vista, 7, 8 and 10 (32/64 bits).
- Most Unix variants using the GTK+ toolkit (version 2.6 or newer or 3.x).
- OS X (10.7 or newer) using Cocoa (32/64 bits).
Most popular C++ compilers are supported including but not limited to:
- Microsoft Visual C++ 2003 or later (up to 2017).
- g++ 3.4 or later, including MinGW/MinGW-64/TDM under Windows.
- Clang under OS X and Linux.
- Intel icc compiler.
- Oracle (ex-Sun) aCC.
Licence
wxWidgets licence is a modified version of LGPL explicitly allowing not distributing the sources of an application using the library even in the case of static linking.
Building
For building the library, please see platform-specific documentation under
docs/<port> directory.
If you're building the sources checked out from Git, and not from a released versions, please see these additional Git-specific notes.
Further information
If you are looking for support, you can get it from
- Mailing Lists
- Discussion Forums
- #wxwidgets IRC channel
- Stack Overflow
(tag your questions with
wxwidgets) - Please report bugs at https://trac.wxwidgets.org/newticket
We would also gladly welcome your contributions.
Have fun!
The wxWidgets Team.