FormCanRedo method

이 API 항목은 식별자, 시그니처, 코드 블록, PDF 용어를 원래 형태로 유지합니다.

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