使用winAPI修改另一个应用程序的Windows样式

我的应用程序启动了另一个应用 因此，我想删除使用c＃启动的应用程序的标题栏。

我怎么能这样做，从下面的代码开始？

//Get current style lCurStyle = GetWindowLong(hwnd, GWL_STYLE) //remove titlebar elements lCurStyle = lCurStyle And Not WS_CAPTION lCurStyle = lCurStyle And Not WS_SYSMENU lCurStyle = lCurStyle And Not WS_THICKFRAME lCurStyle = lCurStyle And Not WS_MINIMIZE lCurStyle = lCurStyle And Not WS_MAXIMIZEBOX //apply new style SetWindowLong hwnd, GWL_STYLE, lCurStyle //reapply a 3d border lCurStyle = GetWindowLong(hwnd, GWL_EXSTYLE) SetWindowLong hwnd, GWL_EXSTYLE, lCurStyle Or WS_EX_DLGMODALFRAME //redraw SetWindowPos hwnd, 0, 0, 0, 0, 0, SWP_NOMOVE Or SWP_NOSIZE Or SWP_FRAMECHANGED 

Answer 1

 #region Constants //Finds a window by class name [DllImport("USER32.DLL")] public static extern IntPtr FindWindow(string lpClassName, string lpWindowName); //Sets a window to be a child window of another window [DllImport("USER32.DLL")] public static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent); //Sets window attributes [DllImport("USER32.DLL")] public static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong); //Gets window attributes [DllImport("USER32.DLL")] public static extern int GetWindowLong(IntPtr hWnd, int nIndex); [DllImport("user32.dll", EntryPoint = "FindWindow", SetLastError = true)] static extern IntPtr FindWindowByCaption(IntPtr ZeroOnly, string lpWindowName); [DllImport("user32.dll")] static extern IntPtr GetMenu(IntPtr hWnd); [DllImport("user32.dll")] static extern int GetMenuItemCount(IntPtr hMenu); [DllImport("user32.dll")] static extern bool DrawMenuBar(IntPtr hWnd); [DllImport("user32.dll")] static extern bool RemoveMenu(IntPtr hMenu, uint uPosition, uint uFlags); //assorted constants needed public static uint MF_BYPOSITION = 0x400; public static uint MF_REMOVE = 0x1000; public static int GWL_STYLE = -16; public static int WS_CHILD = 0x40000000; //child window public static int WS_BORDER = 0x00800000; //window with border public static int WS_DLGFRAME = 0x00400000; //window with double border but no title public static int WS_CAPTION = WS_BORDER | WS_DLGFRAME; //window with a title bar public static int WS_SYSMENU = 0x00080000; //window menu #endregion public static void WindowsReStyle() { Process[] Procs = Process.GetProcesses(); foreach (Process proc in Procs) { if (proc.ProcessName.StartsWith("notepad")) { IntPtr pFoundWindow = proc.MainWindowHandle; int style = GetWindowLong(pFoundWindow, GWL_STYLE); //get menu IntPtr HMENU = GetMenu(proc.MainWindowHandle); //get item count int count = GetMenuItemCount(HMENU); //loop & remove for (int i = 0; i < count; i++) RemoveMenu(HMENU, 0, (MF_BYPOSITION | MF_REMOVE)); //force a redraw DrawMenuBar(proc.MainWindowHandle); SetWindowLong(pFoundWindow, GWL_STYLE, (style & ~WS_SYSMENU)); SetWindowLong(pFoundWindow, GWL_STYLE, (style & ~WS_CAPTION)); } } }