I have my own minimize button with the following code on the Click event:
this.WindowState = FormWindowState.Minimized;
this.ShowInTaskbar = false;
this.notifyIcon.Visible = true;
Sometimes when I click on it, the form appears in the left bottom corner of the screen like this:
Why? What am I doing wrong? How can I fix it?
Thanks in advance.
It is a counter-measure against you setting ShowInTaskbar to false. The user won't be able to restore it so Windows makes it a minimum size window instead of hiding it. Otherwise without paying attention to the fact that you've prevented that from working as well by making it a borderless window.
You need to call Hide() instead.
According to this link
you need to add
this.FormBorderStyle = FormBorderStyle.None;
to your minimization event.
How can I disable the restore button in the control box of a windows form in c#. i need to make the form in maximized condition when it loads. is it possible? even the maximize box property is false, the restore box is shown automatically on the screen.
So from my comment you do this:
// Define the border style of the form to a dialog box.
form1.FormBorderStyle = FormBorderStyle.FixedDialog;
// Set the MaximizeBox to false to remove the maximize box.
form1.MaximizeBox = false;
// Set the MinimizeBox to false to remove the minimize box.
form1.MinimizeBox = false;
This is from MSDN
To maximize your form you simply do this:
form1.WindowState = FormWindowState.Maximized;
Again this can be found on MSDN
Have a look at this question:
How do I remove minimize and maximize from a resizable window in WPF?
The first and most upvoted answer doesn't belong to WPF only. So it should also work with a Winforms application.
Set ResizeMode = CanMinimize and windowState = Maximized in the property panel.
I want to prevent my desktop application from being maximized. It should not become maximized by any means - by double clicking on title bar, or by clicking Windows + Up arrow on the keyboard, etc.
-> I disable both the MaximizeBox and MinimizeBox.
-> I also set the MaximumSize and MinimumSize for my WinForm
Still when I press Windows + Up arrow, my win form Shifts to top left of the screen, I mean it gets maximized.
So please tell me any way to prevent this thing happening...
There are actually two completely separate issues at work here. Granted, they look basically the same from a functional perspective, but from an implementation-model perspective (as Windows itself would naturally use) they are unrelated.
As others have answered, you can prevent your form from being maximized by setting its MaximizeBox property to false. This removes the WS_MAXIMIZEBOX style on the form's underlying window, which prevents the window manager from allowing the window to be maximized. It disables the maximize box on the window's caption bar (the one between the minimize box and the close box), disables the "Maximize" option on the window/system menu, and any other methods of maximizing a window that I may have forgotten.
However, this has nothing to do with the Win+↑ keyboard shortcut, which invokes Aero Snap the same as would dragging the window to the the magic position sat the edges of the screen. The window manager, whether as a result of a bug or a feature of Aero Snap, still allows you to effectively "maximize" windows that should not otherwise be maximized. Setting the MaximizeBox property doesn't affect this, so if you truly want to prevent the user from changing the window's size this way, you will need to disable Aero Snap's effect on your window.
Unfortunately, there's no method (at least, not to my knowledge) of programmatically disabling Aero Snap on a per-window or per-process basis (also see this related question). If the user has Aero Snap enabled, you can assume that they want that behavior and applications aren't supposed to tamper with it. The only thing you can do is completely disable resizing your window. In WinForms, you do that by setting the FormBorderStyle property to one of the following: FormBorderStyle.FixedSingle, FormBorderStyle.Fixed3D, or FormBorderStyle.FixedDialog. If you still want your window to be resizable in other ways, you will need to write the code to handle that manually, which is not a particularly easy task.
Thus, I encourage you to very carefully consider whether this is really necessary. All other non-maximizable windows accomplish this simply by setting the MaximizeBox property (or doing the equivalent in their UI framework), which means that they can still be effectively maximized via Aero Snap. If this works for everyone else's windows, including those that are part of Windows itself, it should probably work for you.
The form has a property called MaximizeBox - set this to false.
In regard to your second question, check out this question and it's answers for the best ways to implement keyboard shortcuts in WinForms.
this.FormBorderStyle = FormBorderStyle.FixedSingle;
That line of code will prevent the user from re-sizing the Window.
In addition to that you hide/disable the maximize box and that should do what you asked.
To disable the maximize box use this
this.MaximizeBox = false;
To hide the maximize box use this as well
this.MinimizeBox = false;
If Maximize and Minimize are set to false the buttons disappear.
Setting the MaximumSize equal to the Size (or some size) at least stops the windows from going full-screen. It still snaps to the top left corner but it's still a window at least and looks right - like it's Windows being stupid instead of your program.
You can prevent the windows snapping to the upper left corner by setting:
private void toolbox_Move(object sender, EventArgs e)
{
this.WindowState = FormWindowState.Normal;
}
in the move event of the form.
There is a property of the Form class named "MaximumBox" you have to set False in the properties window of your form... This actually will disable the form from being maximized by any way... Also if you want to control your form sizes you can work with such properties as "MinimumSize, MaximumSize" setting their values at your discretion or creating an event handler for the MaximumSizeChanged and MinimumSizeChanged events...
You can try to RegisterHotKey Win+Up if your window or application is activated and unregister this hot key if it is deactivated. You must catch the hotkey and return appropriate value to prevent further processing.
Look at WM_ACTIVATEAPP, WM_ACTIVATE and WM_NCACTIVATE. The first can be used if you want to disable the Win+UP for all your windows.
Set formborderstyle to fixedsingle
Maximizebox=false
Set the maximumsize to the size of winform's default size
Ex: if size(646,385) then set maximumsize(646,385)
One thing you can do is set the MaximumSize and MinimumSize in the same value but not 0,0.
It's easy easy! Apply the folling code to maintain window's state to normal when a resize event is triggered.
protected override void OnResize(EventArgs e) {
base.OnResize(e);
WindowState = FormWindowState.Normal;
}
Greetings,
I have a simple winform application of which I want to remove the minimize, maximize and close buttons but I want to keep the top bar so people can keep moving the application.
I've been searching for some hooks to do this but sadly I havn't found anything yet.
Does anyone know if this is possible ?
Simply set ControlBox to false:
ControlBox = false;
Make sure your form still has a title so that the title bar shows in full.
Set the ControlBox Property for the window to false.
How can I create in C# a Windows Form without taskbar (where the minimize and maximize button are placed).
Thanks.
That's called a Title bar.
Set the FormBorderStyle property to None.
Set Form.ControlBox to false and Form.Text to "". This is not the same as the TaskBar (which is the strip along the bottom (typically) in Windows)
To completely remove the title bar you'll need to set the FormBorderStyle to "None" as indicated by SLaks; however, you'll loose all of the other properties of the form's border. If you want anything more customized than that I'd recommend you override the form's OnPaint method but if you don't know what you're doing there your in for a world of hurt.