DispatchAction
Forms, interaction, input
Description
Internal helper of TPDFlibFormSession that runs one Widget trigger action through the OnAction host callback
The action is looked up with
GetFormFieldActionInfo
True
TPDFlibFormFieldActionInfo for the passed index, and a temporary Widget index without its own action entry falls back to the base field's action
Invalid indexes and fields without a matching action report Allow because there is nothing to veto
When an action exists, the callback receives the typed
Declaration
function DispatchAction(FieldIndex: Integer;
const TriggerEvent: AnsiString): Boolean;Parameters
| FieldIndex | Field or temporary Widget index whose action should run |
|---|---|
| TriggerEvent | PDF trigger name such as Fo, Bl, E, X, D, U, V, F or K |
Return value
Returns True when the operation may proceed, False when the OnAction handler vetoed it
See also
FocusField, Blur, ApplySelectionEdit, CommitEdit, TPDFlibFormSessionActionEvent, GetFormFieldActionInfo, TPDFlibFormFieldActionInfo, TPDFlibFormSession