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Questions tagged [message-loop]

70 questions
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Fireing Android Dialogs from another thread without Message Loop

In a SurfaceView, I'm dispatching new thread that draws on canvas within standard "LockCanvas-Draw-unlockCanvasAndPost" loop. (note that thread doesn't contains message loop). How to show Android standard Dialog from that thread? As thread doesn't…
Jox
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Is a CPU fetch / execute cycle an :"event loop"

I'm reading about event loops that pass messages, as I have to design one for a project I am working on. To understand it better, I am trying to analogize it to other things that I know somewhat better, to aid my understanding. Is the fetch /…
Seb Silver
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AutoResetEvent and COM Objects

I've noticed that AutoResetEvent completely freezes the message loop (sometimes) when in the middle of a WaitOne() call, effectively even blocking the signal message. IE: (UI) New thread spawned (UI) Code calls WaitOne(); timeout: 10s (T2) Thread…
hb.
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MFC messageloop in dialog window

i created a MFC dialog application. now i want to use a messageloop, but i can not find it. I read that mfc will create it for me but that it will be hidden. so how can i manipulate the messageloop? i need the messageloop to recieve events from my…
Laokoon
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WPF form and Windows messaging for Modal Dialogs

I have a simple WPF form with a textbox and button and on lost focus it simply simply shows a message box. My code looks like this private void TextBox_LostFocus(object sender, RoutedEventArgs e) { Debug.WriteLine("Lost Focus 1"); …
Ankit
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WTL 8.0 _Module and Message Loop

I'm working on a WTL project, actually WTL 8.1 with VS2008. In many tutorials I've seen the usage of _Module global variable, e.g: _Module.AddMessageLoop. My current application creates a CMessageLoop in the stack at WinMain and later calls the…
Hernán
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Create child window in WM_CREATE, relevance of same thread?

A typical pattern is to create a child window in the message callback (WndProc) at message WM_CREATE: LRESULT APIENTRY WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) { ... switch (message) { case WM_CREATE: .... hwndChild[i] =…
Horst Walter
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role of message loop in this program ? and few more questions

The following code works fine. It gives out the message when the user presses a key. But there are certain things I am not aware of. What is the role of Message Loop here ? I read that calling SetWindowsHookEx(...) registers a function with the…
Suhail Gupta
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Window message loop ( WndProc | While (GetMEssage)) thread in .NET Core

I am trying to subscribe to window messages using .Net Core I am able to receive initial messages to create a window ( through pinvoke) and destroy messages. But after that my created windows gets blocked and does not receive any other messages. …
Aistis Taraskevicius
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How to invoke into message loop after Application.Run()

How can I invoke into the message loop of the tread/form after calling Application.Run() without a dialog? The reason is that I want to prepare (and later show) a dialog that is clickable even if a modal dialog is shown in the main…
LionAM
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