C# 在父窗体中居中 MessageBox
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原文地址: http://stackoverflow.com/questions/1732443/
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StackOverFlow
center MessageBox in parent form
提问by Ramji
Is there a easy way to center MessageBox in parent form in .net 2.0
有没有一种简单的方法可以在 .net 2.0 的父表单中将 MessageBox 居中
采纳答案by dtb
From a comment on Joel Spolsky's blog:
来自Joel Spolsky 博客的评论：
A Messagebox is always centered on the screen. You can provide an owner, but that is just for Z-order, not centering. The only way is to use Win32 hooks and center it yourself. You can find code doing that online if you search for it.
Much easier is to just write your own message box class and add centering functionality. Then you can also add default captioning, Do not show again-checkbox and making them modeless.
消息框始终位于屏幕中央。您可以提供所有者，但这仅适用于 Z 顺序，而不是居中。唯一的方法是使用 Win32 钩子并自己居中。如果您搜索它，您可以在网上找到执行此操作的代码。
简单得多的是编写自己的消息框类并添加居中功能。然后您还可以添加默认字幕，不再显示 - 复选框并使它们无模式。
"Win32 hooks" probably refers to using SetWindowsHookExas shown in this example.
“Win32 hooks”可能是指使用SetWindowsHookEx如本例所示。
回答by Joe
I really needed this in C# and found Center MessageBox C#
我真的需要在 C# 中使用它并找到了Center MessageBox C#
Here's a nicely formatted version
这是一个格式很好的版本
using System;
using System.Windows.Forms;
using System.Text;
using System.Drawing;
using System.Runtime.InteropServices;
public class MessageBoxEx
{
private static IWin32Window _owner;
private static HookProc _hookProc;
private static IntPtr _hHook;
public static DialogResult Show(string text)
{
Initialize();
return MessageBox.Show(text);
}
public static DialogResult Show(string text, string caption)
{
Initialize();
return MessageBox.Show(text, caption);
}
public static DialogResult Show(string text, string caption, MessageBoxButtons buttons)
{
Initialize();
return MessageBox.Show(text, caption, buttons);
}
public static DialogResult Show(string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon)
{
Initialize();
return MessageBox.Show(text, caption, buttons, icon);
}
public static DialogResult Show(string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defButton)
{
Initialize();
return MessageBox.Show(text, caption, buttons, icon, defButton);
}
public static DialogResult Show(string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defButton, MessageBoxOptions options)
{
Initialize();
return MessageBox.Show(text, caption, buttons, icon, defButton, options);
}
public static DialogResult Show(IWin32Window owner, string text)
{
_owner = owner;
Initialize();
return MessageBox.Show(owner, text);
}
public static DialogResult Show(IWin32Window owner, string text, string caption)
{
_owner = owner;
Initialize();
return MessageBox.Show(owner, text, caption);
}
public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons)
{
_owner = owner;
Initialize();
return MessageBox.Show(owner, text, caption, buttons);
}
public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon)
{
_owner = owner;
Initialize();
return MessageBox.Show(owner, text, caption, buttons, icon);
}
public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defButton)
{
_owner = owner;
Initialize();
return MessageBox.Show(owner, text, caption, buttons, icon, defButton);
}
public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defButton, MessageBoxOptions options)
{
_owner = owner;
Initialize();
return MessageBox.Show(owner, text, caption, buttons, icon,
defButton, options);
}
public delegate IntPtr HookProc(int nCode, IntPtr wParam, IntPtr lParam);
public delegate void TimerProc(IntPtr hWnd, uint uMsg, UIntPtr nIDEvent, uint dwTime);
public const int WH_CALLWNDPROCRET = 12;
public enum CbtHookAction : int
{
HCBT_MOVESIZE = 0,
HCBT_MINMAX = 1,
HCBT_QS = 2,
HCBT_CREATEWND = 3,
HCBT_DESTROYWND = 4,
HCBT_ACTIVATE = 5,
HCBT_CLICKSKIPPED = 6,
HCBT_KEYSKIPPED = 7,
HCBT_SYSCOMMAND = 8,
HCBT_SETFOCUS = 9
}
[DllImport("user32.dll")]
private static extern bool GetWindowRect(IntPtr hWnd, ref Rectangle lpRect);
[DllImport("user32.dll")]
private static extern int MoveWindow(IntPtr hWnd, int X, int Y, int nWidth, int nHeight, bool bRepaint);
[DllImport("User32.dll")]
public static extern UIntPtr SetTimer(IntPtr hWnd, UIntPtr nIDEvent, uint uElapse, TimerProc lpTimerFunc);
[DllImport("User32.dll")]
public static extern IntPtr SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, IntPtr lParam);
[DllImport("user32.dll")]
public static extern IntPtr SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);
[DllImport("user32.dll")]
public static extern int UnhookWindowsHookEx(IntPtr idHook);
[DllImport("user32.dll")]
public static extern IntPtr CallNextHookEx(IntPtr idHook, int nCode, IntPtr wParam, IntPtr lParam);
[DllImport("user32.dll")]
public static extern int GetWindowTextLength(IntPtr hWnd);
[DllImport("user32.dll")]
public static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int maxLength);
[DllImport("user32.dll")]
public static extern int EndDialog(IntPtr hDlg, IntPtr nResult);
[StructLayout(LayoutKind.Sequential)]
public struct CWPRETSTRUCT
{
public IntPtr lResult;
public IntPtr lParam;
public IntPtr wParam;
public uint message;
public IntPtr hwnd;
} ;
static MessageBoxEx()
{
_hookProc = new HookProc(MessageBoxHookProc);
_hHook = IntPtr.Zero;
}
private static void Initialize()
{
if (_hHook != IntPtr.Zero)
{
throw new NotSupportedException("multiple calls are not supported");
}
if (_owner != null)
{
_hHook = SetWindowsHookEx(WH_CALLWNDPROCRET, _hookProc, IntPtr.Zero, AppDomain.GetCurrentThreadId());
}
}
private static IntPtr MessageBoxHookProc(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode < 0)
{
return CallNextHookEx(_hHook, nCode, wParam, lParam);
}
CWPRETSTRUCT msg = (CWPRETSTRUCT)Marshal.PtrToStructure(lParam, typeof(CWPRETSTRUCT));
IntPtr hook = _hHook;
if (msg.message == (int)CbtHookAction.HCBT_ACTIVATE)
{
try
{
CenterWindow(msg.hwnd);
}
finally
{
UnhookWindowsHookEx(_hHook);
_hHook = IntPtr.Zero;
}
}
return CallNextHookEx(hook, nCode, wParam, lParam);
}
private static void CenterWindow(IntPtr hChildWnd)
{
Rectangle recChild = new Rectangle(0, 0, 0, 0);
bool success = GetWindowRect(hChildWnd, ref recChild);
int width = recChild.Width - recChild.X;
int height = recChild.Height - recChild.Y;
Rectangle recParent = new Rectangle(0, 0, 0, 0);
success = GetWindowRect(_owner.Handle, ref recParent);
Point ptCenter = new Point(0, 0);
ptCenter.X = recParent.X + ((recParent.Width - recParent.X) / 2);
ptCenter.Y = recParent.Y + ((recParent.Height - recParent.Y) / 2);
Point ptStart = new Point(0, 0);
ptStart.X = (ptCenter.X - (width / 2));
ptStart.Y = (ptCenter.Y - (height / 2));
ptStart.X = (ptStart.X < 0) ? 0 : ptStart.X;
ptStart.Y = (ptStart.Y < 0) ? 0 : ptStart.Y;
int result = MoveWindow(hChildWnd, ptStart.X, ptStart.Y, width,
height, false);
}
}
回答by Joe
Try this, it's simple enough to justify the time...
试试这个，这很简单，可以证明时间是合理的......
This is for Win32 API, written in C. Translate it as you need...
这是用于 Win32 API，用 C 编写。根据需要翻译它...
case WM_NOTIFY:{
HWND X=FindWindow("#32770",NULL);
if(GetParent(X)==H_frame){int Px,Py,Sx,Sy; RECT R1,R2;
GetWindowRect(hwnd,&R1); GetWindowRect(X,&R2);
Sx=R2.right-R2.left,Px=R1.left+(R1.right-R1.left)/2-Sx/2;
Sy=R2.bottom-R2.top,Py=R1.top+(R1.bottom-R1.top)/2-Sy/2;
MoveWindow(X,Px,Py,Sx,Sy,1);
}
} break;
Add that to the WndProc code... You can set position as you like, in this case it just centres over the main program window. It will do this for any messagebox, or file open/save dialog, and likely some other native controls. I'm not sure, but I think you may need to include COMMCTRL or COMMDLG to use this, at least, you will if you want open/save dialogs.
将其添加到 WndProc 代码中...您可以根据需要设置位置，在这种情况下，它只是以主程序窗口为中心。它将为任何消息框或文件打开/保存对话框执行此操作，可能还有其他一些本机控件。我不确定，但我认为您可能需要包含 COMMCTRL 或 COMMDLG 才能使用它，至少，如果您想打开/保存对话框，您会这样做。
I experimented with looking at the notify codes and hwndFrom of NMHDR, then decided it was just as effective, and far easier, not to. If you really want to be very specific, tell FindWindow to look for a unique caption (title) you give to the window you want it to find.
我尝试查看 NMHDR 的通知代码和 hwndFrom，然后决定它同样有效，而且容易得多，而不是。如果您真的想要非常具体，请告诉 FindWindow 查找您为希望它查找的窗口提供的唯一标题（标题）。
This fires before the messagebox is drawn onscreen, so if you set a global flag to indicate when action is done by your code, and look for a unique caption, you be sure that actions you take will only occur once (there will likely be multiple notifiers). I haven't explored this in detail, but I managed get CreateWindow to put an edit box on a messagebox dialog. It looked as out of place as a rat's ear grafted onto the spine of a cloned pig, but it works. Doing things this way may be far easier than having to roll your own.
这会在消息框绘制在屏幕上之前触发，因此如果您设置全局标志来指示代码何时完成操作，并寻找唯一的标题，您可以确保您执行的操作只会发生一次（可能会有多个通知者）。我没有详细探讨过这个问题，但我设法让 CreateWindow 在消息框对话框上放置了一个编辑框。它看起来就像一只老鼠的耳朵移植到克隆猪的脊椎上一样不合适，但它确实有效。以这种方式做事可能比自己动手要容易得多。
Crow.
乌鸦。
EDIT: Small correction to make sure that the right window is handled. Make sure that parent handles agree throughout, and this should work ok. It does for me, even with two instances of the same program...
编辑：小更正以确保处理正确的窗口。确保父句柄始终一致，这应该可以正常工作。它对我有用，即使有同一个程序的两个实例......
回答by Coops
Surely using your own panel or form would be by far the simplest approach if a little more heavy on the background (designer) code. It gives all the control in terms of centring and manipulation without writing all that custom code.
如果背景（设计器）代码稍微重一点，那么使用您自己的面板或表单肯定是迄今为止最简单的方法。它在居中和操作方面提供了所有控制，而无需编写所有自定义代码。
回答by Alezis
I have changed a little bit previous answer and compose WPF version of the MessageBoxEx. This code works for me great. Feel free to notify about issues of the code.
我已经更改了一点以前的答案并编写了 MessageBoxEx 的 WPF 版本。这段代码对我很有用。请随时通知有关代码的问题。
Please note:
I use GeneralObjects.MainWindowInstanceat ctor to initialize class with my main window, but actually I use it for any window due to some kind of cache for last parent window. Therefore you can simple remove out everything from ctor.
请注意：我使用GeneralObjects.MainWindowInstanceat ctor 用我的主窗口初始化类，但实际上由于最后一个父窗口的某种缓存，我将它用于任何窗口。因此，您可以简单地从 ctor 中删除所有内容。
public class MessageBoxEx
{
private static HwndSource source_ = null;
private static HwndSourceHook hook_ = null;
static MessageBoxEx()
{
try
{
// create cached
createHwndSource_(GeneralObjects.MainWindowInstance);
hook_ = new HwndSourceHook(HwndSourceHook);
}
finally
{
if (null == source_ ||
null == hook_)
{
source_ = null;
hook_ = null;
}
}
}
private static void createHwndSource_(Window owner)
{
source_ = (HwndSource)PresentationSource.FromVisual(owner);
}
public static void Initialize_(Window owner = null)
{
try
{
if (null != owner)
{
if(source_.RootVisual != owner)
{
createHwndSource_(owner);
}
}
}
finally
{
if (null == source_ ||
null == hook_)
{
source_ = null;
hook_ = null;
}
}
if (null != source_ &&
null != hook_)
{
source_.AddHook(hook_);
}
}
public static MessageBoxResult Show(string messageBoxText)
{
Initialize_();
return System.Windows.MessageBox.Show(messageBoxText);
}
public static MessageBoxResult Show(string messageBoxText, string caption)
{
Initialize_();
return System.Windows.MessageBox.Show(messageBoxText, caption);
}
public static MessageBoxResult Show(Window owner, string messageBoxText)
{
Initialize_(owner);
return System.Windows.MessageBox.Show(owner, messageBoxText);
}
public static MessageBoxResult Show(string messageBoxText, string caption, MessageBoxButton button)
{
Initialize_();
return System.Windows.MessageBox.Show(messageBoxText, caption, button);
}
public static MessageBoxResult Show(Window owner, string messageBoxText, string caption)
{
Initialize_(owner);
return System.Windows.MessageBox.Show(owner, messageBoxText, caption);
}
public static MessageBoxResult Show(string messageBoxText, string caption, MessageBoxButton button, MessageBoxImage icon)
{
Initialize_();
return System.Windows.MessageBox.Show(messageBoxText, caption, button, icon);
}
public static MessageBoxResult Show(Window owner, string messageBoxText, string caption, MessageBoxButton button)
{
Initialize_(owner);
return System.Windows.MessageBox.Show(owner, messageBoxText, caption, button);
}
public static MessageBoxResult Show(string messageBoxText, string caption, MessageBoxButton button, MessageBoxImage icon, MessageBoxResult defaultResult)
{
Initialize_();
return System.Windows.MessageBox.Show(messageBoxText, caption, button, icon, defaultResult);
}
public static MessageBoxResult Show(Window owner, string messageBoxText, string caption, MessageBoxButton button, MessageBoxImage icon)
{
Initialize_(owner);
return System.Windows.MessageBox.Show(owner, messageBoxText, caption, button, icon);
}
public static MessageBoxResult Show(string messageBoxText, string caption, MessageBoxButton button, MessageBoxImage icon, MessageBoxResult defaultResult, System.Windows.MessageBoxOptions options)
{
Initialize_();
return System.Windows.MessageBox.Show(messageBoxText, caption, button, icon, defaultResult, options);
}
public static MessageBoxResult Show(Window owner, string messageBoxText, string caption, MessageBoxButton button, MessageBoxImage icon, MessageBoxResult defaultResult)
{
Initialize_(owner);
return System.Windows.MessageBox.Show(owner, messageBoxText, caption, button, icon, defaultResult);
}
public static MessageBoxResult Show(Window owner, string messageBoxText, string caption, MessageBoxButton button, MessageBoxImage icon, MessageBoxResult defaultResult, System.Windows.MessageBoxOptions options)
{
Initialize_(owner);
return System.Windows.MessageBox.Show(owner, messageBoxText, caption, button, icon, defaultResult, options);
}
private enum WM : int
{
WM_ACTIVATE = 0x0006
}
private static IntPtr HwndSourceHook(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
if ((int)WM.WM_ACTIVATE == msg &&
source_.Handle == hwnd &&
0 == (int)wParam)
{
try
{
CenterWindow(lParam);
}
finally
{
// remove hook at once after moved message box window.
source_.RemoveHook(hook_);
}
}
return IntPtr.Zero;
}
[DllImport("user32.dll")]
private static extern bool GetWindowRect(IntPtr hWnd, ref Rectangle lpRect);
[DllImport("user32.dll")]
private static extern int MoveWindow(IntPtr hWnd, int X, int Y, int nWidth, int nHeight, bool bRepaint);
private static void CenterWindow(IntPtr hChildWnd)
{
System.Drawing.Rectangle recChild = new System.Drawing.Rectangle(0, 0, 0, 0);
bool success = GetWindowRect(hChildWnd, ref recChild);
int width = recChild.Width - recChild.X;
int height = recChild.Height - recChild.Y;
System.Drawing.Rectangle recParent = new System.Drawing.Rectangle(0, 0, 0, 0);
success = GetWindowRect(source_.Handle, ref recParent);
System.Drawing.Point ptCenter = new System.Drawing.Point(0, 0);
ptCenter.X = recParent.X + ((recParent.Width - recParent.X) / 2);
ptCenter.Y = recParent.Y + ((recParent.Height - recParent.Y) / 2);
System.Drawing.Point ptStart = new System.Drawing.Point(0, 0);
ptStart.X = (ptCenter.X - (width / 2));
ptStart.Y = (ptCenter.Y - (height / 2));
// I have commented this code because of I have 2 monitors
// so If application located at 1st monitor
// message box can appear at second one.
/*
ptStart.X = (ptStart.X < 0) ? 0 : ptStart.X;
ptStart.Y = (ptStart.Y < 0) ? 0 : ptStart.Y;
*/
int result = MoveWindow(hChildWnd, ptStart.X, ptStart.Y, width,
height, false);
}
}
回答by Gman
But why stop with MessageBox-specific implementation? Use the class below like this:
但是为什么要停止特定于 MessageBox 的实现呢？像这样使用下面的类：
private void OnFormClosing(object sender, FormClosingEventArgs e)
{
DialogResult dg;
using (DialogCenteringService centeringService = new DialogCenteringService(this)) // center message box
{
dg = MessageBox.Show(this, "Are you sure?", "Confirm exit", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
}
if (dg == DialogResult.No)
{
e.Cancel = true;
}
}
The code that you can use with anything that shows dialog windows, even if they're owned by another thread (our app has multiple UI threads):
您可以与任何显示对话框窗口的代码一起使用，即使它们由另一个线程拥有（我们的应用程序有多个 UI 线程）：
(Hereis the updated code which takes monitor working areas into account, so that the dialog isn't centered between two monitors or is partly off-screen. With it you'll need enum SetWindowPosFlags, which is below)
（这是考虑到监视器工作区域的更新代码，因此对话框不会在两个监视器之间居中或部分离屏。有了它，您将需要enum SetWindowPosFlags，如下所示）
public class DialogCenteringService : IDisposable
{
private readonly IWin32Window owner;
private readonly HookProc hookProc;
private readonly IntPtr hHook = IntPtr.Zero;
public DialogCenteringService(IWin32Window owner)
{
if (owner == null) throw new ArgumentNullException("owner");
this.owner = owner;
hookProc = DialogHookProc;
hHook = SetWindowsHookEx(WH_CALLWNDPROCRET, hookProc, IntPtr.Zero, GetCurrentThreadId());
}
private IntPtr DialogHookProc(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode < 0)
{
return CallNextHookEx(hHook, nCode, wParam, lParam);
}
CWPRETSTRUCT msg = (CWPRETSTRUCT)Marshal.PtrToStructure(lParam, typeof(CWPRETSTRUCT));
IntPtr hook = hHook;
if (msg.message == (int)CbtHookAction.HCBT_ACTIVATE)
{
try
{
CenterWindow(msg.hwnd);
}
finally
{
UnhookWindowsHookEx(hHook);
}
}
return CallNextHookEx(hook, nCode, wParam, lParam);
}
public void Dispose()
{
UnhookWindowsHookEx(hHook);
}
private void CenterWindow(IntPtr hChildWnd)
{
Rectangle recChild = new Rectangle(0, 0, 0, 0);
bool success = GetWindowRect(hChildWnd, ref recChild);
if (!success)
{
return;
}
int width = recChild.Width - recChild.X;
int height = recChild.Height - recChild.Y;
Rectangle recParent = new Rectangle(0, 0, 0, 0);
success = GetWindowRect(owner.Handle, ref recParent);
if (!success)
{
return;
}
Point ptCenter = new Point(0, 0);
ptCenter.X = recParent.X + ((recParent.Width - recParent.X) / 2);
ptCenter.Y = recParent.Y + ((recParent.Height - recParent.Y) / 2);
Point ptStart = new Point(0, 0);
ptStart.X = (ptCenter.X - (width / 2));
ptStart.Y = (ptCenter.Y - (height / 2));
//MoveWindow(hChildWnd, ptStart.X, ptStart.Y, width, height, false);
Task.Factory.StartNew(() => SetWindowPos(hChildWnd, (IntPtr)0, ptStart.X, ptStart.Y, width, height, SetWindowPosFlags.SWP_ASYNCWINDOWPOS | SetWindowPosFlags.SWP_NOSIZE | SetWindowPosFlags.SWP_NOACTIVATE | SetWindowPosFlags.SWP_NOOWNERZORDER | SetWindowPosFlags.SWP_NOZORDER));
}
// some p/invoke
// ReSharper disable InconsistentNaming
public delegate IntPtr HookProc(int nCode, IntPtr wParam, IntPtr lParam);
public delegate void TimerProc(IntPtr hWnd, uint uMsg, UIntPtr nIDEvent, uint dwTime);
private const int WH_CALLWNDPROCRET = 12;
// ReSharper disable EnumUnderlyingTypeIsInt
private enum CbtHookAction : int
// ReSharper restore EnumUnderlyingTypeIsInt
{
// ReSharper disable UnusedMember.Local
HCBT_MOVESIZE = 0,
HCBT_MINMAX = 1,
HCBT_QS = 2,
HCBT_CREATEWND = 3,
HCBT_DESTROYWND = 4,
HCBT_ACTIVATE = 5,
HCBT_CLICKSKIPPED = 6,
HCBT_KEYSKIPPED = 7,
HCBT_SYSCOMMAND = 8,
HCBT_SETFOCUS = 9
// ReSharper restore UnusedMember.Local
}
[DllImport("kernel32.dll")]
static extern int GetCurrentThreadId();
[DllImport("user32.dll")]
private static extern bool GetWindowRect(IntPtr hWnd, ref Rectangle lpRect);
[DllImport("user32.dll")]
private static extern int MoveWindow(IntPtr hWnd, int X, int Y, int nWidth, int nHeight, bool bRepaint);
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int cx, int cy, SetWindowPosFlags uFlags);
[DllImport("User32.dll")]
public static extern UIntPtr SetTimer(IntPtr hWnd, UIntPtr nIDEvent, uint uElapse, TimerProc lpTimerFunc);
[DllImport("User32.dll")]
public static extern IntPtr SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, IntPtr lParam);
[DllImport("user32.dll")]
public static extern IntPtr SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);
[DllImport("user32.dll")]
public static extern int UnhookWindowsHookEx(IntPtr idHook);
[DllImport("user32.dll")]
public static extern IntPtr CallNextHookEx(IntPtr idHook, int nCode, IntPtr wParam, IntPtr lParam);
[DllImport("user32.dll")]
public static extern int GetWindowTextLength(IntPtr hWnd);
[DllImport("user32.dll")]
public static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int maxLength);
[DllImport("user32.dll")]
public static extern int EndDialog(IntPtr hDlg, IntPtr nResult);
[StructLayout(LayoutKind.Sequential)]
public struct CWPRETSTRUCT
{
public IntPtr lResult;
public IntPtr lParam;
public IntPtr wParam;
public uint message;
public IntPtr hwnd;
};
// ReSharper restore InconsistentNaming
}
[Flags]
public enum SetWindowPosFlags : uint
{
// ReSharper disable InconsistentNaming
/// <summary>
/// If the calling thread and the thread that owns the window are attached to different input queues, the system posts the request to the thread that owns the window. This prevents the calling thread from blocking its execution while other threads process the request.
/// </summary>
SWP_ASYNCWINDOWPOS = 0x4000,
/// <summary>
/// Prevents generation of the WM_SYNCPAINT message.
/// </summary>
SWP_DEFERERASE = 0x2000,
/// <summary>
/// Draws a frame (defined in the window's class description) around the window.
/// </summary>
SWP_DRAWFRAME = 0x0020,
/// <summary>
/// Applies new frame styles set using the SetWindowLong function. Sends a WM_NCCALCSIZE message to the window, even if the window's size is not being changed. If this flag is not specified, WM_NCCALCSIZE is sent only when the window's size is being changed.
/// </summary>
SWP_FRAMECHANGED = 0x0020,
/// <summary>
/// Hides the window.
/// </summary>
SWP_HIDEWINDOW = 0x0080,
/// <summary>
/// Does not activate the window. If this flag is not set, the window is activated and moved to the top of either the topmost or non-topmost group (depending on the setting of the hWndInsertAfter parameter).
/// </summary>
SWP_NOACTIVATE = 0x0010,
/// <summary>
/// Discards the entire contents of the client area. If this flag is not specified, the valid contents of the client area are saved and copied back into the client area after the window is sized or repositioned.
/// </summary>
SWP_NOCOPYBITS = 0x0100,
/// <summary>
/// Retains the current position (ignores X and Y parameters).
/// </summary>
SWP_NOMOVE = 0x0002,
/// <summary>
/// Does not change the owner window's position in the Z order.
/// </summary>
SWP_NOOWNERZORDER = 0x0200,
/// <summary>
/// Does not redraw changes. If this flag is set, no repainting of any kind occurs. This applies to the client area, the nonclient area (including the title bar and scroll bars), and any part of the parent window uncovered as a result of the window being moved. When this flag is set, the application must explicitly invalidate or redraw any parts of the window and parent window that need redrawing.
/// </summary>
SWP_NOREDRAW = 0x0008,
/// <summary>
/// Same as the SWP_NOOWNERZORDER flag.
/// </summary>
SWP_NOREPOSITION = 0x0200,
/// <summary>
/// Prevents the window from receiving the WM_WINDOWPOSCHANGING message.
/// </summary>
SWP_NOSENDCHANGING = 0x0400,
/// <summary>
/// Retains the current size (ignores the cx and cy parameters).
/// </summary>
SWP_NOSIZE = 0x0001,
/// <summary>
/// Retains the current Z order (ignores the hWndInsertAfter parameter).
/// </summary>
SWP_NOZORDER = 0x0004,
/// <summary>
/// Displays the window.
/// </summary>
SWP_SHOWWINDOW = 0x0040,
// ReSharper restore InconsistentNaming
}
