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The TextFormatFlags.ModifyString field is obsolete, as a warning, and may be removed in a future .NET version.
Change description
In previous .NET versions, the TextFormatFlags.ModifyString enumeration field is not marked obsolete. In .NET 5 and later versions, it is marked obsolete as a warning. This field may be removed in a future .NET version.
Reason for change
Passing a string to TextRenderer.MeasureText with TextFormatFlags.ModifyString alters the string in some situations. This behavior breaks the string immutability promise and may lead to a fatal .NET runtime state corruption.
Version introduced
.NET 5.0
Recommended action
Update any code that relies on TextFormatFlags.ModifyString.
Affected APIs
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