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Re: How do I create a loop for a window to react to volatile changes to a global variable? [message #54776 is a reply to message #51335]

Thu, 10 September 2020 19:13

JeyCi
Messages: 69
Registered: July 2020

Member

Oblivion wrote on Mon, 11 March 2019 12:44

In some cases you may want to create a customized event loop in the main thread.

Yes it helps - thank you for the example.
But first example in your message also works U++ 13664 IN WIN32-MINGW_9.3-compiled - only if using

	void SetArray(int n)
	{
		PostCallback([=](){
			array.Add(n);
			if(n == 10) { // Resize window from within thread...
				SetRect(50, 50, 640, 480);
			}
		});
	}

otherwise, I suppose, I'm getting into deadlock (with GuiLock & even with Call)app don't show changes to arrayCtrl & crashes... I think, that compiler matters!.. MSVC probably could compile ok MT app with GuiLock, or perhaps OS matters (probably Linux can have ok with GuiLock)...
But now with your example I see some possible changes to do to my own code Embarassed

- I could'n even assume, that answer is so easy - I thought (in my own code) that I made some mistakes in the code itself... of course will check again... but I agree with your proposal concerning MainThread... thank you for useful advice!
In any case, it seems, that compiler matters for Upp::Thread dealing with??... Shocked

therefore your suggestion seems suitable... thanks

Best regards.

[Updated on: Thu, 10 September 2020 19:26]

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