cross platform native open/save file dialogs

I'm writing a UI for my program using opengl with SDL in a combination of Lua and C++

What I need now is some library that will allow me to call a function that presents the user with a file select dialog for opening/saving a file. But if the OS offers native functionality for such a dialog, then I want to use that dialog (eg Window's GetOpenFileName).

The only pl开发者_StackOverflow中文版atforms I need to support are Windows and Linux, but I want to be able to still use most of the SDL & openGL code I've already written.

What options are available?

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tinyfiledialogs offers many modal dialogs and popup notifications (both for graphic and console modes). It is a cross-platform C file (with a header) to add to your C or C++ project. It aims to be extremely easy to use, has no init, no main loop, and no external dependencies. It is used by hundreds of projects on GitHub and of course, I am the author. Get it here: http://tinyfiledialogs.sourceforge.net

Usage example:

    char const * selection = tinyfd_openFileDialog( // there is also a wchar_t version
        "Select file", // title
        "C:\\", // optional initial directory
        2, // number of filter patterns
        lFilterPatterns, // char const * lFilterPatterns[2] = { "*.txt", "*.jpg" };
        NULL, // optional filter description
        0 // forbid multiple selections
        );

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You should take a good look at Native File Dialog. It is a small, portable C library that lets you use load and save dialogs in a cross platform manner without linking huge dependencies like qt or wxWidgets.

I am the author, and I use it with SDL2 and OpenGL on Linux, Mac and Windows.

https://github.com/mlabbe/nativefiledialog

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In my opinion, wxWidgets is the open source, battle tested, mature, cross platform, cross language, free, open source, GUI library. Beside wxWidgets, there are also many other such cross platform libraries, such as:

• Tk
• FLTK
• FOX
• XUL
• AbiWord's cross platform layer

... and more.

You will most likely find you're looking for in the AbiWord source code. Look for "FileOpen" inside the src directory:

./af/xap/cocoa/xap_CocoaDlg_FileOpenSaveAs.cpp
./af/xap/cocoa/xap_CocoaDlg_FileOpenSaveAs.h
./af/xap/cocoa/xap_CocoaFileOpen_Views.nib
./af/xap/cocoa/xap_CocoaFileOpen_Views.nib/classes.nib
./af/xap/cocoa/xap_CocoaFileOpen_Views.nib/info.nib
./af/xap/cocoa/xap_CocoaFileOpen_Views.nib/keyedobjects.nib
./af/xap/gtk/xap_UnixDlg_FileOpenSaveAs.cpp
./af/xap/gtk/xap_UnixDlg_FileOpenSaveAs.h
./af/xap/win/xap_Win32Dlg_FileOpenSaveAs.cpp
./af/xap/win/xap_Win32Dlg_FileOpenSaveAs.h
./af/xap/xp/xap_Dlg_FileOpenSaveAs.cpp
./af/xap/xp/xap_Dlg_FileOpenSaveAs.h

The Windows version does indeed use GetOpenFileName().

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Of course, as Andre points out while downvoting a valid alternative answer, there's also Qt, as you already know. Refer to raj's answer for a link.

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https://doc.qt.io/qt-5/qfiledialog.html provides a good abstraction of os file open services

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I have used another good library:

https://github.com/samhocevar/portable-file-dialogs

It is a single header library with support for Linux / Mac / Windows