/* Copyright (c) Citrix Systems, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, * with or without modification, are permitted provided * that the following conditions are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the * following disclaimer in the documentation and/or other * materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.Runtime.InteropServices; using XenAdmin.Core; using System.IO; namespace XenAdmin.Dialogs { /* * This code is based on the page: * http://www.codeproject.com/csharp/GetSaveFileName.asp?df=100&forumid=96342&exp=0&select=962159 * * It uses win32 to extend a save file dialog. */ public class ExportVMDialog { public string DefaultExt = ""; public string Filter = ""; public string FileName = Messages.BACKUP_NAME; public string Title = ""; public bool Verify = true; private IntPtr ComboHandle = IntPtr.Zero; private IWin32Window Owner; private IntPtr HookProc(IntPtr hdlg, int msg, IntPtr wParam, IntPtr lParam) { switch (msg) { case Win32.WM_INITDIALOG: // Center the dialog on its owner Win32.RECT sr = new Win32.RECT(); Win32.RECT cr = new Win32.RECT(); IntPtr parent = Win32.GetParent(hdlg); Win32.GetWindowRect(parent, ref cr); Win32.GetWindowRect(Owner.Handle, ref sr); int x = (sr.Right + sr.Left - (cr.Right - cr.Left)) / 2; int y = (sr.Bottom + sr.Top - (cr.Bottom - cr.Top)) / 2; Win32.SetWindowPos(parent, IntPtr.Zero, x, y, cr.Right - cr.Left, cr.Bottom - cr.Top + 32, Win32.SWP_NOZORDER); IntPtr fileTypeWindow = Win32.GetDlgItem(parent, 0x441); IntPtr fontHandle = Win32.SendMessage(fileTypeWindow, Win32.WM_GETFONT, IntPtr.Zero, IntPtr.Zero); //we now need to find the combo-box to position the new tick box under IntPtr fileComboWindow = Win32.GetDlgItem(parent, 0x470); Win32.RECT aboveRect = new Win32.RECT(); Win32.GetWindowRect(fileComboWindow, ref aboveRect); Win32.POINT point = new Win32.POINT(); point.X = aboveRect.Left; point.Y = aboveRect.Bottom; Win32.ScreenToClient(parent, ref point); Win32.POINT rightPoint = new Win32.POINT(); rightPoint.X = aboveRect.Right; rightPoint.Y = aboveRect.Top; Win32.ScreenToClient(parent, ref rightPoint); //we create the new combobox IntPtr comboHandle = Win32.CreateWindowEx(0, "BUTTON", "", Win32.WS_VISIBLE | Win32.WS_CHILD | Win32.WS_TABSTOP | Win32.BS_AUTOCHECKBOX, point.X, point.Y + 8, rightPoint.X - point.X, 16, parent, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero); fontHandle = Win32.SendMessage(fileTypeWindow, Win32.WM_GETFONT, IntPtr.Zero, IntPtr.Zero); Win32.SendMessage(comboHandle, Win32.WM_SETFONT, fontHandle, IntPtr.Zero); Win32.SendMessage(comboHandle, Win32.WM_SETTEXT, IntPtr.Zero, Messages.EXPORT_VM_VERIFY_POST_INSTALL); Win32.SendMessage(comboHandle, Win32.BM_SETCHECK, (IntPtr)(Verify ? Win32.BST_CHECKED : Win32.BST_UNCHECKED), IntPtr.Zero); //remember the handles of the controls we have created so we can destroy them after ComboHandle = comboHandle; break; case Win32.WM_DESTROY: //destroy the handles we have created if (ComboHandle != IntPtr.Zero) { Win32.DestroyWindow(ComboHandle); } break; case Win32.WM_NOTIFY: //we need to intercept the CDN_FILEOK message //which is sent when the user selects a filename Win32.NMHDR nmhdr = (Win32.NMHDR)Marshal.PtrToStructure(lParam, typeof(Win32.NMHDR)); if (nmhdr.code == Win32.CDN_FILEOK) { Verify = Win32.SendMessage(ComboHandle, Win32.BM_GETCHECK, IntPtr.Zero, IntPtr.Zero) == (IntPtr)Win32.BST_CHECKED; } else if (nmhdr.code == Win32.CDN_HELP) { Help.HelpManager.Launch("ExportVMDialog"); } break; } return IntPtr.Zero; } public DialogResult ShowDialog(IWin32Window owner) { //set up the struct and populate it Win32.OPENFILENAME ofn = new Win32.OPENFILENAME(); ofn.lStructSize = Marshal.SizeOf(ofn); ofn.lpstrFilter = Filter.Replace('|', '\0') + '\0'; ofn.lpstrFile = FileName+ new string(' ', 512); ofn.lpTemplateName = FileName; ofn.nMaxFile = ofn.lpstrFile.Length; ofn.lpstrFileTitle = System.IO.Path.GetFileName(FileName) + new string(' ', 512); ofn.nMaxFileTitle = ofn.lpstrFileTitle.Length; ofn.lpstrTitle = Title; ofn.lpstrDefExt = DefaultExt; //position the dialog above the active window Owner = owner; ofn.hwndOwner = owner.Handle; //set up some sensible flags ofn.Flags = Win32.OFN_EXPLORER | Win32.OFN_PATHMUSTEXIST | Win32.OFN_NOTESTFILECREATE | Win32.OFN_ENABLEHOOK | Win32.OFN_HIDEREADONLY | Win32.OFN_OVERWRITEPROMPT | Win32.OFN_SHOWHELP; //this is where the hook is set. Note that we can use a C# delegate in place of a C function pointer ofn.lpfnHook = new Win32.OFNHookProcDelegate(HookProc); //show the dialog if (!Win32.GetSaveFileName(ref ofn)) { int ret = Win32.CommDlgExtendedError(); if (ret != 0) { throw new ApplicationException(string.Format(Messages.EXPORTVM_COULD_NOT_SHOW, ret.ToString())); } return DialogResult.Cancel; } FileName = ofn.lpstrFile; return DialogResult.OK; } } }