Forms.Timer - multithreaded?

[=?Utf-8?B?SmVzcGVyLCBEZW5tYXJr?=]

Hi,

Does the System.Windows.Forms.Timer invoke the main form thread? Or does it
start another thread so that I need to lock my objects on which it operates
in case the user of the program saves data while the Timer updates data.

regards Jesper.

[Peter Duniho]

On Sun, 13 Jul 2008 05:51:00 -0700, Jesper, Denmark
<Je***********@discussions.microsoft.comwrote:

Does the System.Windows.Forms.Timer invoke the main form thread? Or does
it
start another thread so that I need to lock my objects on which it
operates
in case the user of the program saves data while the Timer updates data.

From the main documentation page for the class: "This Windows timer is
designed for a single-threaded environment where UI threads are used to
perform processing"

[Peter Morris]

Works on the form's thread.

Pete

[Carl Daniel [VC++ MVP]]

Peter Morris wrote:

Works on the form's thread.

.... in contrast to System.Threading.Timer or System.Timers.Timer which both
raise their timing events on a worker thread. Getting the timing events in
the UI thread is the sole reason for the existence of
System.Windows.Forms.Timer.

-cd

[Chakravarthy]

Jesper,

First things first, you are violating the concept of timer by thinking to
execute that on a multi thread. thus it is not at all a practice to run the
timer on multi thread

Think once again.
"Jesper, Denmark" <Je***********@discussions.microsoft.comwrote in message
news:0E**********************************@microsof t.com...

Hi,

Does the System.Windows.Forms.Timer invoke the main form thread? Or does
it
start another thread so that I need to lock my objects on which it
operates
in case the user of the program saves data while the Timer updates data.

regards Jesper.