[mboloz]

Hello there,

I have some example here..

[attachment=6663:Queue Thread.rar]

i have a button “execute” that proccess a thread that fill sProgressBar from 0-Max

but when i execute the button again and again, there is an overlaping thread, can someone fix this code

what i want is queue threading, for example if i click the button three times

the progressbar will execute from 0-max three times but waiting each execute thread over, not by overlaping it

Need Help please…

[Stertor]

maybe this will help.

[mboloz]

🙁 Thanks dude, but not yet like what i wanted..

try to click the button twice or more, the thread is overlaping by new execute,

what i want is, thread execute twice but waiting one by one done

[mboloz]

its not about detect the thread already running or not, i precisely need the thread execute many time

but the progress waiting each, not by overlaping by new execute

sorry for bad english…

[CheshireCat]

Hello,

you can use my class for save threads in a waiting list. Look at the attached demo 🙂

[attachment=6666:Queue Thread.zip]

Note:

I use TGauge instead TProgressBar, a TProgressBar is not suitable in threads!

[mboloz]

'CheshireCat' wrote:

Hello,

you can use my class for save threads in a waiting list. Look at the attached demo 🙂

[attachment=6666:Queue Thread.zip]

Note:

I use TGauge instead TProgressBar, a TProgressBar is not suitable in threads!

:a3: hey thanks, but the fmain.pas i cant found it, would you upload it again?

[CheshireCat]

Sorry for missing file, here is the complete demo with all files:

[attachment=6667:Queue Thread.zip]

[mboloz]

'CheshireCat' wrote:

Sorry for missing file, here is the complete demo with all files:

[attachment=6667:Queue Thread.zip]

:a3: many thanks, works perfectly… case closed

[Stertor]

ЧеширскийКот, он только-только стал изучать потоки, могу представить, как он разбирается в вашем примере )

Чем не устраивают критические секции? Просто вынести процедуру заполнения прогрессбара в основной поток (с помощью Synchronize) и все.

К тому же, в этом случае отпадают танцы с бубном около Tgauge, см. пример:

[CheshireCat]

Hello Stertor,

your code example is correct but it doesn't solve the problem. If you click on the button during ProgressBar is filling you don't create a new thread, it starts the Execute method from the begin only (same Thread-ID). Each click on the button should create a new thread that also runs to the end before the next is executed (various Thread-ID)!

[Author]

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