I am looking for a simple way to lock a WPF window. Is there a simple window style or property I can set on a WPF window to locked the window?
我正在寻找一种锁定WPF窗口的简单方法。我可以在WPF窗口上设置一个简单的窗口样式或属性来锁定窗口吗?
By lock I mean the user can not move, resize, drag, minimize or maximize the window.
通过锁定我的意思是用户无法移动,调整大小,拖动,最小化或最大化窗口。
2 个解决方案
#1
18
Setup the window with:
设置窗口:
window.WindowStyle = WindowStyle.None;
window.ResizeMode = ResizeMode.NoResize;
This will prevent the user from minimizing, maximizing, or moving the Window.
这将阻止用户最小化,最大化或移动窗口。
#2
3
To prevent a window from being moved or resized, handle the WM_WINDOWPOSCHANGING
message in a WndProc
hook. Using WM_WINDOWPOSCHANGING
prevents the window from being moved even by Win + Shift + Left. An example of an attached property which adds this behavior is shown below.
要防止窗口被移动或调整大小,请在WndProc挂钩中处理WM_WINDOWPOSCHANGING消息。使用WM_WINDOWPOSCHANGING可以防止窗口被Win + Shift + Left移动。下面显示了添加此行为的附加属性的示例。
This can be combined with WindowStyle
and ResizeMode
to make the window look immovable too.
这可以与WindowStyle和ResizeMode结合使用,使窗口看起来也不可移动。
using static NativeMethods;
public class WindowPos : DependencyObject
{
public static bool GetIsLocked(DependencyObject obj)
{
return (bool)obj.GetValue(IsLockedProperty);
}
public static void SetIsLocked(DependencyObject obj, bool value)
{
obj.SetValue(IsLockedProperty, value);
}
public static readonly DependencyProperty IsLockedProperty =
DependencyProperty.RegisterAttached("IsLocked", typeof(bool), typeof(WindowPos),
new PropertyMetadata(false, IsLocked_Changed));
private static void IsLocked_Changed(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var window = (Window)d;
var isHooked = d.GetValue(IsHookedProperty) != null;
if (!isHooked)
{
var hook = new WindowLockHook(window);
d.SetValue(IsHookedProperty, hook);
}
}
private static readonly DependencyProperty IsHookedProperty =
DependencyProperty.RegisterAttached("IsHooked", typeof(WindowLockHook), typeof(WindowPos),
new PropertyMetadata(null));
private class WindowLockHook
{
private readonly Window Window;
public WindowLockHook(Window window)
{
this.Window = window;
var source = PresentationSource.FromVisual(window) as HwndSource;
if (source == null)
{
// If there is no hWnd, we need to wait until there is
window.SourceInitialized += Window_SourceInitialized;
}
else
{
source.AddHook(WndProc);
}
}
private void Window_SourceInitialized(object sender, EventArgs e)
{
var source = (HwndSource)PresentationSource.FromVisual(Window);
source.AddHook(WndProc);
}
public IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
if (msg == WM_WINDOWPOSCHANGING && GetIsLocked(Window))
{
var wp = Marshal.PtrToStructure<WINDOWPOS>(lParam);
wp.flags |= SWP_NOMOVE | SWP_NOSIZE;
Marshal.StructureToPtr(wp, lParam, false);
}
return IntPtr.Zero;
}
}
}
internal static class NativeMethods
{
[StructLayout(LayoutKind.Sequential)]
public struct RECT
{
public int left;
public int top;
public int right;
public int bottom;
}
[StructLayout(LayoutKind.Sequential)]
public struct WINDOWPOS
{
public IntPtr hwnd;
public IntPtr hwndInsertAfter;
public int x;
public int y;
public int cx;
public int cy;
public int flags;
}
public const int
SWP_NOMOVE = 0x0002,
SWP_NOSIZE = 0x0001;
public const int
WM_WINDOWPOSCHANGING = 0x0046;
}
Example use:
#1
18
Setup the window with:
设置窗口:
window.WindowStyle = WindowStyle.None;
window.ResizeMode = ResizeMode.NoResize;
This will prevent the user from minimizing, maximizing, or moving the Window.
这将阻止用户最小化,最大化或移动窗口。
#2
3
To prevent a window from being moved or resized, handle the WM_WINDOWPOSCHANGING
message in a WndProc
hook. Using WM_WINDOWPOSCHANGING
prevents the window from being moved even by Win + Shift + Left. An example of an attached property which adds this behavior is shown below.
要防止窗口被移动或调整大小,请在WndProc挂钩中处理WM_WINDOWPOSCHANGING消息。使用WM_WINDOWPOSCHANGING可以防止窗口被Win + Shift + Left移动。下面显示了添加此行为的附加属性的示例。
This can be combined with WindowStyle
and ResizeMode
to make the window look immovable too.
这可以与WindowStyle和ResizeMode结合使用,使窗口看起来也不可移动。
using static NativeMethods;
public class WindowPos : DependencyObject
{
public static bool GetIsLocked(DependencyObject obj)
{
return (bool)obj.GetValue(IsLockedProperty);
}
public static void SetIsLocked(DependencyObject obj, bool value)
{
obj.SetValue(IsLockedProperty, value);
}
public static readonly DependencyProperty IsLockedProperty =
DependencyProperty.RegisterAttached("IsLocked", typeof(bool), typeof(WindowPos),
new PropertyMetadata(false, IsLocked_Changed));
private static void IsLocked_Changed(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var window = (Window)d;
var isHooked = d.GetValue(IsHookedProperty) != null;
if (!isHooked)
{
var hook = new WindowLockHook(window);
d.SetValue(IsHookedProperty, hook);
}
}
private static readonly DependencyProperty IsHookedProperty =
DependencyProperty.RegisterAttached("IsHooked", typeof(WindowLockHook), typeof(WindowPos),
new PropertyMetadata(null));
private class WindowLockHook
{
private readonly Window Window;
public WindowLockHook(Window window)
{
this.Window = window;
var source = PresentationSource.FromVisual(window) as HwndSource;
if (source == null)
{
// If there is no hWnd, we need to wait until there is
window.SourceInitialized += Window_SourceInitialized;
}
else
{
source.AddHook(WndProc);
}
}
private void Window_SourceInitialized(object sender, EventArgs e)
{
var source = (HwndSource)PresentationSource.FromVisual(Window);
source.AddHook(WndProc);
}
public IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
if (msg == WM_WINDOWPOSCHANGING && GetIsLocked(Window))
{
var wp = Marshal.PtrToStructure<WINDOWPOS>(lParam);
wp.flags |= SWP_NOMOVE | SWP_NOSIZE;
Marshal.StructureToPtr(wp, lParam, false);
}
return IntPtr.Zero;
}
}
}
internal static class NativeMethods
{
[StructLayout(LayoutKind.Sequential)]
public struct RECT
{
public int left;
public int top;
public int right;
public int bottom;
}
[StructLayout(LayoutKind.Sequential)]
public struct WINDOWPOS
{
public IntPtr hwnd;
public IntPtr hwndInsertAfter;
public int x;
public int y;
public int cx;
public int cy;
public int flags;
}
public const int
SWP_NOMOVE = 0x0002,
SWP_NOSIZE = 0x0001;
public const int
WM_WINDOWPOSCHANGING = 0x0046;
}
Example use: