On 19/11/2012 11:43, Michael Schnell wrote:
On 11/19/2012 10:08 AM, Eric Kom wrote:
after included the Crt library in my lazarus file, when I called the
functions sleep() or delay(), the function do not execute the
previous statement, pass and execute the next as below:
StatusBar.SimpleText := 'My name is Tux';
sleep(100);
StatusBar.SimpleText := 'am ready';
Using sleep in this way does not make sense at all.
- Any GUI action (i.e. displaying changes) is blocked while the main
is sleeping.
- the GUI actions are performed by events and can will be performed
at "some reasonable point in time" after the action is scheduled by
the user program.
the Connection procedure is declared as a private
procedure Tfrmform1.Connection(Sender: TObject);
begin
StatusBar.SimpleText := 'My name is Tux';
sleep(100);
StatusBar.SimpleText := 'am ready';
end;
The purpose of sleep() is nothing but "allowing for other threads and
processes to use the CPU for at least the given milliseconds".
-Michael
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Kind Regards
Eric Kom
System Administrator - Metropolitan College
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