Re: [Foxgui-users]Methods vs messages

[jeroen <je...@fo...>]

On Tuesday 29 June 2004 04:48 pm, GORIS Mal wrote:
> Hi
>
> I am trying to understand whether it is better to use methods or messages
> to modify a widget.  For example, a user makes a selection in "FXComboBox
> *myComboBox" and within the "onCmdComboBox" function I retrieve a "char
> *str" from a database which I want to display in "FXTextField
> *myTextField".  Then, should I do
>
> myTextField->setText(str);
>
> or should I do
>
> myTextField->handle(myComboBox, FXSEL(SEL_COMMAND, ID_DELETE_ALL), NULL);
> myTextField->handle(myComboBox, FXSEL(SEL_COMMAND, ID_INSERT_STRING),
> (void*) str);
>
> I am guessing that the myTextField->handle way queues the messages to be
> dealt with at leisure, allowing the application to be more responsive to
> user input.  But is it going overboard to use messages when a simple
> myTextField->setText will suffice?

No, if you call handle it is done immediately.

It depends.  The messages allow a certain isolation between the sender and
the receiver, in the sense that the sender doesn't need to know the type
of the receiver.

However, calling API's directly is definitly faster.  I recommend the latter
unless there are reasons that your sender should not know the type of the
receiver.

	
		- Jeroen


-- 
+----------------------------------------------------------------------------+
| Copyright (C) 21:50 06/29/2004 Jeroen van der Zijp.   All Rights Reserved. |
+----------------------------------------------------------------------------+