FormCanRedo method

Bu API girdisi tanımlayıcıları, imzaları, kod bloklarını ve PDF terimlerini özgün biçiminde korur.

Reports whether the focused AcroForm widget has at least one undone edit to redo.

FormCanRedo wraps PDFium's FORM_CanRedo. It returns True when the FOCUSED AcroForm widget has at least one undone edit in its redo stack that FormRedo could re-apply, and False otherwise.

Returns False safely when the view is inactive, the document has no AcroForm, or no widget is focused.

Making a fresh edit (typing, paste, etc.) clears the redo stack — FormCanRedo flips to False after the next edit. This matches the standard text-editor convention.

• FormCanRedo is the natural Enabled-state expression for a Redo menu item, toolbar button, or context-menu entry.
• Like FormCanUndo, FormCanRedo is per-widget — the answer changes as focus moves between widgets.
• The probe is cheap — no document mutation, no JavaScript fire.

FormRedo, FormCanUndo, FormUndo