DeliverMessage function
Delivers a message (TLMessage) to the specified component, control or object.
Declaration
function DeliverMessage(const Target: TObject; var AMessage): PtrIntArguments
Target | Control or object where the message is delivered. |
AMessage | TLMessage instance with the message type constant and result code used in the routine. |
Function result
Pointer to the result code from the TLMessage instance.
Description
DeliverMessage ensures that the reference count for a TLCLComponent
descendant in Target is maintained during message delivery. The reference
count is incremented prior to message delivery, and decremented when the
operation is completed.
If Target is a TControl descendant, the TLMessage instance is sent to the WindowProc method in the control. For TObject descendants, the message is sent using the Dispatch method in the class instance.
An exception which occurs during message delivery is forwarded to the HandleException method in the Application.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.