如何从 WPF 中可调整大小的窗口中删除最小化和最大化？
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How do I remove minimize and maximize from a resizable window in WPF?
提问by Nidonocu
WPF doesn't provide the ability to have a window that allows resize but doesn't have maximize or minimize buttons. I'd like to able to make such a window so I can have resizable dialog boxes.
WPF 不提供允许调整大小但没有最大化或最小化按钮的窗口的功能。我希望能够制作这样一个窗口，以便我可以拥有可调整大小的对话框。
I'm aware the solution will mean using pinvoke but I'm not sure what to call and how. A search of pinvoke.net didn't turn up any thing that jumped out at me as what I needed, mainly I'm sure because Windows Forms does provide the CanMinimizeand CanMaximizeproperties on its windows.
我知道该解决方案将意味着使用 pinvoke，但我不确定该调用什么以及如何调用。搜索 pinvoke.net 并没有发现任何我需要的东西，主要是我确定因为 Windows 窗体确实在其窗口上提供了CanMinimize和CanMaximize属性。
Could someone point me towards or provide code (C# preferred) on how to do this?
有人可以指点我或提供有关如何执行此操作的代码（首选 C#）吗？
回答by Matt Hamilton
I've stolen some code I found on the MSDN forums and made an extension method on the Window class, like this:
我偷了一些在 MSDN 论坛上找到的代码，并在 Window 类上创建了一个扩展方法，如下所示：
internal static class WindowExtensions
{
// from winuser.h
private const int GWL_STYLE = -16,
WS_MAXIMIZEBOX = 0x10000,
WS_MINIMIZEBOX = 0x20000;
[DllImport("user32.dll")]
extern private static int GetWindowLong(IntPtr hwnd, int index);
[DllImport("user32.dll")]
extern private static int SetWindowLong(IntPtr hwnd, int index, int value);
internal static void HideMinimizeAndMaximizeButtons(this Window window)
{
IntPtr hwnd = new System.Windows.Interop.WindowInteropHelper(window).Handle;
var currentStyle = GetWindowLong(hwnd, GWL_STYLE);
SetWindowLong(hwnd, GWL_STYLE, (currentStyle & ~WS_MAXIMIZEBOX & ~WS_MINIMIZEBOX));
}
}
The only other thing to remember is that for some reason this doesn't work from a window's constructor. I got around that by chucking this into the constructor:
唯一要记住的另一件事是，由于某种原因，这在窗口的构造函数中不起作用。我通过将它放入构造函数来解决这个问题：
this.SourceInitialized += (x, y) =>
{
this.HideMinimizeAndMaximizeButtons();
};
Hope this helps!
希望这可以帮助！
回答by Musikero31
One way is to set your ResizeMode="NoResize". It will behave like this.
一种方法是设置您的ResizeMode="NoResize". 它会像这样。
I hope this helps!
我希望这有帮助！
回答by Gishu
Don't know if this works for your req. visually.. This is
不知道这是否适合您的要求。视觉上..这是
<Window x:Class="DataBinding.MyWindow" ...Title="MyWindow" Height="300" Width="300"
WindowStyle="ToolWindow" ResizeMode="CanResizeWithGrip">
回答by Eldar
If anyone use Devexpress window (DXWindow) accepted answer doesn't work. One ugly approach is
如果有人使用 Devexpress 窗口 (DXWindow)，则接受的答案不起作用。一种丑陋的方法是
public partial class MyAwesomeWindow : DXWindow
{
public MyAwesomeWIndow()
{
Loaded += OnLoaded;
}
private void OnLoaded(object sender, RoutedEventArgs routedEventArgs)
{
// hides maximize button
Button button = (Button)DevExpress.Xpf.Core.Native.LayoutHelper.FindElementByName(this, DXWindow.ButtonParts.PART_Maximize.ToString());
button.IsHitTestVisible = false;
button.Opacity = 0;
// hides minimize button
button = (Button)DevExpress.Xpf.Core.Native.LayoutHelper.FindElementByName(this, DXWindow.ButtonParts.PART_Minimize.ToString());
button.IsHitTestVisible = false;
button.Opacity = 0;
// hides close button
button = (Button)DevExpress.Xpf.Core.Native.LayoutHelper.FindElementByName(this, DXWindow.ButtonParts.PART_CloseButton.ToString());
button.IsHitTestVisible = false;
button.Opacity = 0;
}
}
回答by Andrej
Here's a solution I'm using. Note that maximize button is still displayed.
这是我正在使用的解决方案。请注意，最大化按钮仍会显示。
Markup:
标记：
<Window x:Class="Example"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Example"
StateChanged="Window_StateChanged">
Code behind:
后面的代码：
// Disable maximizing this window
private void Window_StateChanged(object sender, EventArgs e)
{
if (this.WindowState == WindowState.Maximized)
this.WindowState = WindowState.Normal;
}
回答by Chinmay Behera
You can set the ResizeMode="NoResize" of the window if you want to remove Minimize and Maximize button
如果要删除最小化和最大化按钮，可以设置窗口的 ResizeMode="NoResize"
回答by Olivier Jacot-Descombes
This variant of the solution proposedby @MattHamilton can (and must) be called in the constructor of the Window. The trick is to subscribe a delegate to the SourceInitializedevent within the extension method.
@MattHamilton提出的解决方案的这个变体可以（并且必须）在 Window 的构造函数中调用。诀窍是SourceInitialized在扩展方法中为事件订阅一个委托。
private const int GWL_STYLE = -16, WS_MAXIMIZEBOX = 0x10000, WS_MINIMIZEBOX = 0x20000;
[DllImport("user32.dll")]
extern private static int GetWindowLong(IntPtr hwnd, int index);
[DllImport("user32.dll")]
extern private static int SetWindowLong(IntPtr hwnd, int index, int value);
/// <summary>
/// Hides the Minimize and Maximize buttons in a Window. Must be called in the constructor.
/// </summary>
/// <param name="window">The Window whose Minimize/Maximize buttons will be hidden.</param>
public static void HideMinimizeAndMaximizeButtons(this Window window)
{
window.SourceInitialized += (s, e) => {
IntPtr hwnd = new System.Windows.Interop.WindowInteropHelper(window).Handle;
int currentStyle = GetWindowLong(hwnd, GWL_STYLE);
SetWindowLong(hwnd, GWL_STYLE, currentStyle & ~WS_MAXIMIZEBOX & ~WS_MINIMIZEBOX);
};
}
