UpdateAppearanceStream

Form fields

Description

Generates an appearance stream for the form field. Appearance streams can be generated for text, pushbutton, choice, checkbox and radio-button form fields

Syntax

Delphi

Function TPDFlib.UpdateAppearanceStream(Index: Integer): Integer;

ActiveX

Function PDFlib::UpdateAppearanceStream(Index As Long) As Long

DLL

int DLUpdateAppearanceStream(int InstanceID, int Index);

Parameters

Index	The index of the form field to work with; the first form field has an index of 1

Return values

0	The form field could not be found or an appearance stream could not be created for the specified field
1	The appearance stream for the specified form field was created successfully

Remarks

A successful call removes the Widget from the current-session appearance dirty set. If generation fails, the Widget remains dirty and

NeedAppearances remains true so a later batch refresh can retry it