Precautions for system. Windows. Forms. Timer In the thread

Use the system. Windows. Forms. Timer object in winform. Single threadYou can directly set the enabled attribute value of the object to start the timer. MultithreadingMulti-thread in the form EventTo call the timer, you must use the delegate object to set the value of the timer enabled on the UI form. If you do not use invoke, the timer will not be started.

The delegation statement is as follows:
Public Delegate void settimer (timer TM, bool enabled );

Call:

Void stmer (timer TM, bool enabled)
{
Invoke (New settimer (_ settimer), new object [] {TM, enabled });
}

Void _ settimer (timer TM, bool O)
{
TM. Enabled = O;
}