Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / Tools / System.Activities.Presentation / System / Activities / Presentation / View / WindowExtensionMethods.cs / 1305376 / WindowExtensionMethods.cs
//---------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. //--------------------------------------------------------------- namespace System.Activities.Presentation.View { using System.Runtime.InteropServices; using System.Windows; using System.Windows.Interop; static class WindowExtensionMethods { public static void ShowContextHelpButton(this Window window) { IntPtr hwnd = new WindowInteropHelper(window).Handle; IntPtr exStyle = Win32Interop.GetWindowLongPtr(hwnd, Win32Interop.GWL_EXSTYLE); if (IntPtr.Size == 4) { exStyle = new IntPtr(exStyle.ToInt32() | Win32Interop.WS_EX_CONTEXTHELP); } else { exStyle = new IntPtr(exStyle.ToInt64() | ((long)Win32Interop.WS_EX_CONTEXTHELP)); } Win32Interop.SetWindowLongPtr(new HandleRef(window, hwnd), Win32Interop.GWL_EXSTYLE, exStyle); } public static void HideMinMaxButton(this Window window) { IntPtr hwnd = new WindowInteropHelper(window).Handle; IntPtr style = Win32Interop.GetWindowLongPtr(hwnd, Win32Interop.GWL_STYLE); if (IntPtr.Size == 4) { int intValue = style.ToInt32(); intValue = SetBit(Win32Interop.WS_MAXIMIZEBOX, intValue, false); intValue = SetBit(Win32Interop.WS_MINIMIZEBOX, intValue, false); style = new IntPtr(intValue); } else { long longValue = style.ToInt64(); longValue = SetBit((long)Win32Interop.WS_MAXIMIZEBOX, longValue, false); longValue = SetBit((long)Win32Interop.WS_MINIMIZEBOX, longValue, false); style = new IntPtr(longValue); } Win32Interop.SetWindowLongPtr(new HandleRef(window, hwnd), Win32Interop.GWL_STYLE, style); } public static void AddWindowsHook(this Window window, HwndSourceHook wmHandler) { IntPtr hwnd = new WindowInteropHelper(window).Handle; HwndSource source = HwndSource.FromHwnd(hwnd); source.AddHook(wmHandler); } public static void RemoveWindowsHook(this Window window, HwndSourceHook wmHandler) { IntPtr hwnd = new WindowInteropHelper(window).Handle; HwndSource source = HwndSource.FromHwnd(hwnd); source.RemoveHook(wmHandler); } public static void HideIcon(this Window window) { IntPtr hwnd = new WindowInteropHelper(window).Handle; IntPtr exStyle = Win32Interop.GetWindowLongPtr(hwnd, Win32Interop.GWL_EXSTYLE); if (IntPtr.Size == 4) { exStyle = new IntPtr(exStyle.ToInt32() | Win32Interop.WS_EX_DLGMODALFRAME); } else { exStyle = new IntPtr(exStyle.ToInt64() | ((long)Win32Interop.WS_EX_DLGMODALFRAME)); } Win32Interop.SetWindowLongPtr(new HandleRef(window, hwnd), Win32Interop.GWL_EXSTYLE, exStyle); Win32Interop.SendMessage(hwnd, Win32Interop.WM_SETICON, new IntPtr(Win32Interop.ICON_SMALL), IntPtr.Zero); Win32Interop.SendMessage(hwnd, Win32Interop.WM_SETICON, new IntPtr(Win32Interop.ICON_BIG), IntPtr.Zero); } private static long SetBit(long mask, long value, bool flag) { if (flag) { return value | mask; } else { return value & ~mask; } } private static int SetBit(int mask, int value, bool flag) { if (flag) { return value | mask; } else { return value & ~mask; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. //--------------------------------------------------------------- namespace System.Activities.Presentation.View { using System.Runtime.InteropServices; using System.Windows; using System.Windows.Interop; static class WindowExtensionMethods { public static void ShowContextHelpButton(this Window window) { IntPtr hwnd = new WindowInteropHelper(window).Handle; IntPtr exStyle = Win32Interop.GetWindowLongPtr(hwnd, Win32Interop.GWL_EXSTYLE); if (IntPtr.Size == 4) { exStyle = new IntPtr(exStyle.ToInt32() | Win32Interop.WS_EX_CONTEXTHELP); } else { exStyle = new IntPtr(exStyle.ToInt64() | ((long)Win32Interop.WS_EX_CONTEXTHELP)); } Win32Interop.SetWindowLongPtr(new HandleRef(window, hwnd), Win32Interop.GWL_EXSTYLE, exStyle); } public static void HideMinMaxButton(this Window window) { IntPtr hwnd = new WindowInteropHelper(window).Handle; IntPtr style = Win32Interop.GetWindowLongPtr(hwnd, Win32Interop.GWL_STYLE); if (IntPtr.Size == 4) { int intValue = style.ToInt32(); intValue = SetBit(Win32Interop.WS_MAXIMIZEBOX, intValue, false); intValue = SetBit(Win32Interop.WS_MINIMIZEBOX, intValue, false); style = new IntPtr(intValue); } else { long longValue = style.ToInt64(); longValue = SetBit((long)Win32Interop.WS_MAXIMIZEBOX, longValue, false); longValue = SetBit((long)Win32Interop.WS_MINIMIZEBOX, longValue, false); style = new IntPtr(longValue); } Win32Interop.SetWindowLongPtr(new HandleRef(window, hwnd), Win32Interop.GWL_STYLE, style); } public static void AddWindowsHook(this Window window, HwndSourceHook wmHandler) { IntPtr hwnd = new WindowInteropHelper(window).Handle; HwndSource source = HwndSource.FromHwnd(hwnd); source.AddHook(wmHandler); } public static void RemoveWindowsHook(this Window window, HwndSourceHook wmHandler) { IntPtr hwnd = new WindowInteropHelper(window).Handle; HwndSource source = HwndSource.FromHwnd(hwnd); source.RemoveHook(wmHandler); } public static void HideIcon(this Window window) { IntPtr hwnd = new WindowInteropHelper(window).Handle; IntPtr exStyle = Win32Interop.GetWindowLongPtr(hwnd, Win32Interop.GWL_EXSTYLE); if (IntPtr.Size == 4) { exStyle = new IntPtr(exStyle.ToInt32() | Win32Interop.WS_EX_DLGMODALFRAME); } else { exStyle = new IntPtr(exStyle.ToInt64() | ((long)Win32Interop.WS_EX_DLGMODALFRAME)); } Win32Interop.SetWindowLongPtr(new HandleRef(window, hwnd), Win32Interop.GWL_EXSTYLE, exStyle); Win32Interop.SendMessage(hwnd, Win32Interop.WM_SETICON, new IntPtr(Win32Interop.ICON_SMALL), IntPtr.Zero); Win32Interop.SendMessage(hwnd, Win32Interop.WM_SETICON, new IntPtr(Win32Interop.ICON_BIG), IntPtr.Zero); } private static long SetBit(long mask, long value, bool flag) { if (flag) { return value | mask; } else { return value & ~mask; } } private static int SetBit(int mask, int value, bool flag) { if (flag) { return value | mask; } else { return value & ~mask; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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