maxon::String Fails to Display "º" in Control Name

[Viktor Velicko]

Hi guys,
I'm having an issue creating attribute panel control names that include the degree symbol "º".
For example, when creating a button control with the following Maxon string:

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Example A (works):

const char* name_char = "Slope 90";
maxon::String name_maxon(name_char);

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Example B (fails – button name is blank):

const char* name_char = "Slope 90º";
maxon::String name_maxon(name_char);

---

The name_char variable is just for testing purposes. In the actual application, the string is read from the file system.
The name_maxon string is then used to set the control name in the attribute panel.

Any ideas why the degree symbol causes the control name to appear blank?

Thanks!

[ferdinand]

Hey @Viktor-Velicko,

Thank you for reaching out to us. Generally, our codebase supports Unicode, but in C++ source code and in *.str resource files, we only support Unicode escape sequences, not Unicode symbols directly. In Python, we do support Unicode symbols directly. In the 2025.3 SDK, I just added a code example for how to use Python to create a Unicode escaping pipeline around *.str files.

So, the Unicode string const String slopeLabel = "Slope 90º"_s; would be written as const String slopeLabel = "Slope 90\\u00b0"_s; in C++. A bit more verbose variant would be const String slopeLabel ="Slope 90"_s + String("\\u00b0", STRINGENCODING::BIT7HEX));. In Python, you can use the string directly as slopeLabel: str = "Slope 90°".

Cheers,
Ferdinand