Win bug: file open truncates default filename

Windows
#1

We are seeing a Windows bug with the native file open dialog. Using a JUCE FileChooser class.
You can give the FileChooser a default filename with its “initialFileOrDirectory” parameter. Thats the file name the file chooser suggests the very first. But when that file name is too long, it gets initially shown truncated:

WinTruncationBug
WinTruncationBug626×506 21.2 KB

In the above screenshot I was setting “ThisIsAQuiteLongFilenameToTestABug.8proj” as the initial/default file name.
But as you can see, the file name box of the open dialog shows it truncated. Even though there would be space to show more.

I think this is a Windows bug. Because Google tells me, that other have had similar problems. Here is one thread for example:
https://social.msdn.microsoft.com/Forums/en-US/73791d22-49be-4721-84a5-9e6a960a22aa/cfiledialog-appears-to-truncate-offered-default-file-name?forum=vcgeneral

But the above link also gives a workaround.
Now I was wondering, if the JUCE team wants to implement that workaround in JUCE? :slight_smile:

I was testing using JUCE 6.1.5 on Windows 10 version 21H1.

#2

If you want to get that workaround implemented, you could always do it yourself! The code for opening the native file chooser on Windows is under modules/juce_gui_basics/native/juce_win32_FileChooser.cpp. (Github link)

Also, have you looked into the FileChooserDialogBox?

#3

Well, I try not to patch the JUCE sources themselves.

But I was not aware of FileChooserDialogBox. I’ll give that a try, thanks :slight_smile:

#4

I just tested FileChooserDialogBox. Thanks for suggesting.
But Unfortunately it is not a native dialog. We decided to go with native file browser, therefore it won’t work for us.