PDFiumPas-kehittäjäviite

Tyhjentää PDFium-lomakekahvan nykyisen kohdistetun lomake-widgetin

Syntax

function ClearFocusedFormField(FormHandle: FPDF_FORMHANDLE): Boolean;

FormHandle FPDF_FORMHANDLE

Boolean

ClearFocusedFormField removes focus from the currently focused widget associated with the supplied PDFium form handle

TPdf.ClearFormFieldFocus and TPdfView.ClearFormFieldFocus use this helper for component-level focus clearing

Returns True when the helper changed the focused widget state
Reload or repaint the page after clearing focus when the caller owns the visual surface

if ClearFocusedFormField(Pdf1.FormHandle) then
Pdf1.ReloadPage;