关于问题中的代码:
免责声明:请记住雷蒙德·陈(Raymond Chen)的博客文章中所述内容:
在进程间是否合法拥有父/子或者所有者/拥有窗口关系。换句话说,这是一个“因为你问了”的事情 :)
设置以下字段(或适合的任何内容):
windowdHwnd
是要重新设置父级的窗口句柄
oldParent
是先前父级的句柄,由 SetParent()
返回
oldStyles
将存储先前窗口的样式,由 GetWWindowLongPtr()
返回
IntPtr windowdHwnd = IntPtr.Zero;
IntPtr oldParent = (IntPtr)(-1);
int oldStyles = 0;
// [...]
当您拥有所关注的窗口句柄时,请将windowdHwnd
设置为该值。在此代码之后调用(可以是方法,传递窗口句柄和将成为新父级容器控件的容器控件 - 在此处,一个名为somePanel
的控件)。
// Already parented, resets the previous styles, clean up and return
if (windowdHwnd != IntPtr.Zero && oldParent != (IntPtr)(-1)) {
NativeMethods.SetParent(windowdHwnd, oldParent);
NativeMethods.SetWindowLongPtr(windowdHwnd, NativeMethods.GWL_Flags.GWL_STYLE, new IntPtr(oldStyles));
windowdHwnd = IntPtr.Zero;
oldParent = (IntPtr)(-1);
return;
}
// Store the existing Styles, to restore when the Window is dismissed
oldStyles = NativeMethods.GetWindowLongPtr(windowdHwnd, NativeMethods.GWL_Flags.GWL_STYLE);
if (oldStyles == IntPtr.Zero) {
int error = Marshal.GetLastWin32Error(); // Show the error code or throw an exception
return;
}
// Removes the System Menu from the Window: it will also remove the Buttons from the Caption
int newStyle = oldStyles.ToInt32()^ (int)NativeMethods.WinStyles.WS_SYSMENU;
NativeMethods.SetLastError(0);
// Sets the new Styles
IntPtr result = NativeMethods.SetWindowLongPtr(windowdHwnd, NativeMethods.GWL_Flags.GWL_STYLE, (IntPtr)newStyle);
if (result == IntPtr.Zero) {
int error = Marshal.GetLastWin32Error(); // Show the error code or throw an exception
return;
}
oldParent = NativeMethods.SetParent(windowdHwnd, somePanel.Handle);
// Repositions the Window and shows it, if needed
var flags = NativeMethods.SWP_Flags.SWP_ASYNCWINDOWPOS | NativeMethods.SWP_Flags.SWP_SHOWWINDOW;
NativeMethods.SetWindowPos(windowdHwnd, IntPtr.Zero, 0, 0, somePanel.Width, somePanel.Height, flags);
您可以这样写(这只是删除):
int newStyle = oldStyles &~(int)NativeMethods.WinStyles.WS_SYSMENU
替代的选项(开/关):
int newStyle = oldStyles ^ (int)NativeMethods.WinStyles.WS_SYSMENU
NativeMethods
类:
using System.Runtime.InteropServices;
public class NativeMethods
{
[Flags]
public enum SWP_Flags : uint
{
SWP_NOSIZE = 0x0001,
SWP_NOMOVE = 0x0002,
SWP_NOZORDER = 0x0004,
SWP_NOREDRAW = 0x0008,
SWP_NOACTIVATE = 0x0010,
SWP_DRAWFRAME = 0x0020,
SWP_FRAMECHANGED = 0x0020,
SWP_SHOWWINDOW = 0x0040,
SWP_HIDEWINDOW = 0x0080,
SWP_NOCOPYBITS = 0x0100,
SWP_NOOWNERZORDER = 0x0200,
SWP_NOREPOSITION = 0x0200,
SWP_NOSENDCHANGING = 0x0400,
SWP_NOCLIENTSIZE = 0x0800,
SWP_NOCLIENTMOVE = 0x1000,
SWP_DEFERERASE = 0x2000,
SWP_ASYNCWINDOWPOS = 0x4000
}
[Flags]
public enum WinStyles : uint
{
WS_BORDER = 0x00800000,
WS_CAPTION = 0x00C00000,
WS_CHILD = 0x40000000,
WS_CHILDWINDOW = 0x40000000,
WS_CLIPCHILDREN = 0x02000000,
WS_CLIPSIBLINGS = 0x04000000,
WS_DISABLED = 0x08000000,
WS_DLGFRAME = 0x00400000,
WS_GROUP = 0x00020000,
WS_HSCROLL = 0x00100000,
WS_ICONIC = 0x20000000,
WS_MAXIMIZE = 0x01000000,
WS_MAXIMIZEBOX = 0x00010000,
WS_MINIMIZE = 0x20000000,
WS_MINIMIZEBOX = 0x00020000,
WS_OVERLAPPED = 0x00000000,
WS_OVERLAPPEDWINDOW = WS_OVERLAPPED |
WS_CAPTION |
WS_SYSMENU |
WS_THICKFRAME |
WS_MINIMIZEBOX |
WS_MAXIMIZEBOX,
WS_POPUP = 0x80000000,
WS_POPUPWINDOW = WS_POPUP |
WS_BORDER |
WS_SYSMENU,
WS_SIZEBOX = 0x00040000,
WS_SYSMENU = 0x00080000,
WS_TABSTOP = 0x00010000,
WS_THICKFRAME = 0x00040000,
WS_TILED = 0x00000000,
WS_TILEDWINDOW = WS_OVERLAPPED |
WS_CAPTION |
WS_SYSMENU |
WS_THICKFRAME |
WS_MINIMIZEBOX |
WS_MAXIMIZEBOX,
WS_VISIBLE = 0x10000000,
WS_VSCROLL = 0x00200000,
}
public enum GWL_Flags : int
{
GWL_USERDATA = -21,
GWL_EXSTYLE = -20,
GWL_STYLE = -16,
GWL_ID = -12,
GWLP_HWNDPARENT = -8,
GWLP_HINSTANCE = -6,
GWL_WNDPROC = -4,
DWLP_MSGRESULT = 0x0,
DWLP_DLGPROC = 0x4,
DWLP_USER = 0x8
}
[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
internal static extern IntPtr GetWindowLongPtr(IntPtr hWnd, GWL_Flags nIndex);
[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
internal static extern IntPtr SetWindowLongPtr(IntPtr hWnd, GWL_Flags nIndex, IntPtr dwNewLong);
[DllImport("user32.dll", SetLastError = true)]
internal static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);
[DllImport("user32.dll", SetLastError = true)]
internal static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int cx, int cy, SWP_Flags uFlags);
[DllImport("kernel32.dll")]
internal static extern void SetLastError(uint dwErrCode);
}