disable maximize capacity in a wpf window

Question

I'm trying to disable the maximize capacity (not the maximize button) in a wpf window, but so far nothing has succeded.

I'm using a window with WindowStyle="none", but when I drag the window to the far top of the screen, the OS "maximizes" the window (terribly bad, by the way).

I uploaded 3 pictures to show what is happening exactly.

(however, due to the fact that I don't have 10 reputation, I have to post the links instead. Sorry about that. And I can't put all 3 links, only 2 of them, but the first one is just of the window working normally)

During:

After:

Try to set maxwidth and maxheight property then try again. Let me know if this works. — Abin, Jun 04 '15 at 16:57
Hi Abin. I set it to 2000 just to give it a try, but it didn't work. — Julian David Bautista Osorio, Jun 04 '15 at 17:09

score 6 · Accepted Answer · answered Sep 15 '16 at 00:52

6

use the window state change event:

private void Window_StateChanged(object sender, EventArgs e)
{
    if (this.WindowState == System.Windows.WindowState.Maximized) 
    {
        this.WindowState = System.Windows.WindowState.Normal; 
    }
}

answered Sep 15 '16 at 00:52

Anant Anand Gupta

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Works, but it's a horribly ugly thing to watch as it jumps out and back. That event is way too late to be useful in production. – DonBoitnott Nov 06 '18 at 16:54
Unfortunately that's the only solution I know and use. I will be curious to know alternate solutions, if you could find and share here. – Anant Anand Gupta Nov 09 '18 at 18:17
The best solution thus far has been the p/invoke on message preview. – DonBoitnott Nov 09 '18 at 20:31

score 1 · Answer 2 · edited May 23 '17 at 12:25

1

Set MaxHeight,MinHeight and MaxWidth,MinWidth property for the window.

Example

 <Window x:Class="test.MainWindow"        
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"                
    Title="MainWindow" MaxHeight="350" MaxWidth="525" MinHeight="350" MinWidth="525">
</Window>

How do you disable Aero Snap in an application?

edited May 23 '17 at 12:25

Community

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answered Jun 04 '15 at 17:00

Abin

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Hi. I just did that, with 525 in both fields. It still let me maximize the window when I move it to the top of the window. (However, now the area covered from the maximized window is not all of the screen but just 525x525 in the top left corner. – Julian David Bautista Osorio Jun 04 '15 at 17:14
Nop, it still let me maximize the window, but now the "maximized" window has an area of "maxwidth" by "maxheight". – Julian David Bautista Osorio Jun 04 '15 at 17:30
@JulianDavidBautistaOsorio Did u tried this way ? MaxHeight="350" MaxWidth="525" MinHeight="350" MinWidth="525" – Abin Jun 04 '15 at 17:31
Yes, my window has values for those minheight and minwidth fields as well. This is what happens: I drag the window to the top: The borders of my working window are set to the min values, and the dark area ocupied (but useless) by the maximized window are set to the max values. It wont let me drag it after maximizing the window. – Julian David Bautista Osorio Jun 04 '15 at 17:38
And by the way, I can't just set small values for my window, since its resizable and the user can expand it or contract it. – Julian David Bautista Osorio Jun 04 '15 at 17:41
http://stackoverflow.com/questions/19475258/how-to-disable-maximizing-of-a-window-when-the-window-is-moved-to-the-top-left-c – Abin Jun 04 '15 at 17:44
1

http://stackoverflow.com/questions/2470685/how-do-you-disable-aero-snap-in-an-application – Abin Jun 04 '15 at 17:49
The first link didn't help me. But the guy in the second link was having the same problem I did, and his solution, even though it's not "pretty", it works well. THANK YOU FOR YOUR HELP!!! :) – Julian David Bautista Osorio Jun 04 '15 at 18:42

disable maximize capacity in a wpf window

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