wndproc

Normally when you open a Modal Dialog and try to click on it's parent window the Modal Dialog's titlebar flashes. When creating a custom, borderless, chromeless, window in WPF you lose all that functionality and must rebuild it yourself. I've looked high and low and for the life of me cannot figure out how to get my Modal window to flash. Though it still beeps... I figure I'm going to have to watch for some event(s) in WndProc that I'll have to handle, but I can't figure out which event or how to do it. I've tried watching the window changed and window changing event as well as the WM_ACTIVATE

I have some questions regarding overriding the WndProc method of a Windows Form / NativeWindow. What exactly is the difference between WndProc and DefWndProc (edit: I thought it is called "DefaultWndProc" before)? I can only override WndProc, but what is DefWndProc for, which I can call anytime? And where to call base.WndProc in my overridden method? Or should I call DefWndProc instead? The following positions came into my mind: protected override void WndProc(ref Message m) { // 1st: I call the base handler at the start, in front of my handling. // Are there disadvantages here? base.WndProc

I use the following code to drag a borderless form, by clicking and dragging the form itself. It works, but it doesn't for when you click and drag a control located on the form. I need to be able to drag it when clicked on some of the controls but not others - drag by labels, but don't by buttons and text boxes. How do I do it? protected override void WndProc(ref Message m) { base.WndProc(ref m); const int WM_NCHITTEST = 0x84; const int HTCLIENT = 0x1; const int HTCAPTION = 0x2; if (m.Msg == WM_NCHITTEST && (int)m.Result == HTCLIENT) m.Result = (IntPtr)HTCAPTION; } Actually, I found the

I have a simple windows form with no border and several label controls (nothing that needs to be clicked). I needed to be able to allow the user to move the form by clicking anywhere on it, so I found this question, and used the following code found there. private const int WM_NCHITTEST = 0x84; private const int HTCLIENT = 0x1; private const int HTCAPTION = 0x2; protected override void WndProc(ref Message m) { switch (m.Msg) { case WM_NCHITTEST: base.WndProc(ref m); if ((int)m.Result == HTCLIENT) { m.Result = (IntPtr)HTCAPTION; return; } else { return; } break; } base.WndProc(ref m); } This

Is there any event in C# that fires when the form STOPS being moved. Not while its moving. If there is no event for it, is there a way of doing it with WndProc? The ResizeEnd event fires after a move ends. Perhaps you could use that. This is not a failsafe solution, but it's pure .NET and it's dead simple. Add a timer to your form, set it to a relatively short delay (100-150 ms seemed OK for me). Add the following code for the Form.LocationChanged and Timer.Tick events: private void Form_LocationChanged(object sender, EventArgs e) { if (this.Text != "Moving") { this.Text = "Moving"; }