Comment 1 by jteh on 2012-01-29 21:54
It has nothing to do with the size of the combo box control. The issue is that the Windows API function we use to retrieve the device names only returns a maximum of 32 (or maybe 31) characters.
Changes:
Changed title from "The Output Device Combo Box in Synthesizer preferences needs resizing" to "Audio output device names truncated to 32 characters"

@jcsteh As you indicated in #2067 (comment), the reported issue is a limitation of the Windows API function we use. Do we have alternatives to use with a more relaxed character limit? CC @feerrenrut for GUI expertise

I don't know. There are newer APIs, but the question is whether we can map these back to WinMM device identifiers. Further research is required.

@hkatic is this also in Windows 10 the case?

I can reproduce this in NVDA alpha-20097,6a573cd9.
cc: @JulienCochuyt

Found a few hints here: https://stackoverflow.com/questions/1449162/get-the-full-name-of-a-wavein-device/43396412

Long story short:

• First pass a WAVEOUTCAPS2 structure to gain the device GUID then lookup in registry
• If this fails (no info in registry), use DirectSound to fetch device info

It's doable, but a bit complicated for what it attempts to solve...