Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / WinForms / Managed / System / WinForms / ComponentModel / COM2Interop / COM2ComponentEditor.cs / 1 / COM2ComponentEditor.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms.ComponentModel.Com2Interop { using System.Runtime.Remoting; using System.Runtime.InteropServices; using System.ComponentModel; using System.Diagnostics; using System.Diagnostics.CodeAnalysis; using System; using System.Collections; using Microsoft.Win32; using System.Windows.Forms.Design; internal class Com2ComponentEditor : WindowsFormsComponentEditor { public static bool NeedsComponentEditor(object obj) { if (obj is NativeMethods.IPerPropertyBrowsing) { // check for a property page Guid guid = Guid.Empty; int hr = ((NativeMethods.IPerPropertyBrowsing)obj).MapPropertyToPage(NativeMethods.MEMBERID_NIL, out guid); if ((hr == NativeMethods.S_OK) && !guid.Equals(Guid.Empty)) { return true; } } if (obj is NativeMethods.ISpecifyPropertyPages) { try { NativeMethods.tagCAUUID uuids = new NativeMethods.tagCAUUID(); try { ((NativeMethods.ISpecifyPropertyPages)obj).GetPages(uuids); if (uuids.cElems > 0) { return true; } } finally { if (uuids.pElems != IntPtr.Zero) { Marshal.FreeCoTaskMem(uuids.pElems); } } } catch { } return false; } return false; } [ SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters") // This was shipped in Everett. ] public override bool EditComponent(ITypeDescriptorContext context, object obj, IWin32Window parent) { IntPtr handle = (parent == null ? IntPtr.Zero : parent.Handle); // try to get the page guid if (obj is NativeMethods.IPerPropertyBrowsing) { // check for a property page Guid guid = Guid.Empty; int hr = ((NativeMethods.IPerPropertyBrowsing)obj).MapPropertyToPage(NativeMethods.MEMBERID_NIL, out guid); if (hr == NativeMethods.S_OK) { if (!guid.Equals(Guid.Empty)) { object o = obj; SafeNativeMethods.OleCreatePropertyFrame(new HandleRef(parent, handle), 0, 0, "PropertyPages", 1, ref o, 1, new Guid[]{guid}, Application.CurrentCulture.LCID, 0, IntPtr.Zero); return true; } } } if (obj is NativeMethods.ISpecifyPropertyPages) { bool failed = false; Exception failureException; try { NativeMethods.tagCAUUID uuids = new NativeMethods.tagCAUUID(); try { ((NativeMethods.ISpecifyPropertyPages)obj).GetPages(uuids); if (uuids.cElems <= 0) { return false; } } catch { return false; } try { object o = obj; SafeNativeMethods.OleCreatePropertyFrame(new HandleRef(parent, handle), 0, 0, "PropertyPages", 1, ref o, uuids.cElems, new HandleRef(uuids, uuids.pElems), Application.CurrentCulture.LCID, 0, IntPtr.Zero); return true; } finally { if (uuids.pElems != IntPtr.Zero) { Marshal.FreeCoTaskMem(uuids.pElems); } } } catch (Exception ex1) { failed = true; failureException = ex1; } if (failed) { String errString = SR.GetString(SR.ErrorPropertyPageFailed); IUIService uiSvc = (context != null) ? ((IUIService) context.GetService(typeof(IUIService))) : null; if (uiSvc == null) { RTLAwareMessageBox.Show(null, errString, SR.GetString(SR.PropertyGridTitle), MessageBoxButtons.OK, MessageBoxIcon.Error, MessageBoxDefaultButton.Button1, 0); } else if (failureException != null) { uiSvc.ShowError(failureException, errString); } else { uiSvc.ShowError(errString); } } } return false; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms.ComponentModel.Com2Interop { using System.Runtime.Remoting; using System.Runtime.InteropServices; using System.ComponentModel; using System.Diagnostics; using System.Diagnostics.CodeAnalysis; using System; using System.Collections; using Microsoft.Win32; using System.Windows.Forms.Design; internal class Com2ComponentEditor : WindowsFormsComponentEditor { public static bool NeedsComponentEditor(object obj) { if (obj is NativeMethods.IPerPropertyBrowsing) { // check for a property page Guid guid = Guid.Empty; int hr = ((NativeMethods.IPerPropertyBrowsing)obj).MapPropertyToPage(NativeMethods.MEMBERID_NIL, out guid); if ((hr == NativeMethods.S_OK) && !guid.Equals(Guid.Empty)) { return true; } } if (obj is NativeMethods.ISpecifyPropertyPages) { try { NativeMethods.tagCAUUID uuids = new NativeMethods.tagCAUUID(); try { ((NativeMethods.ISpecifyPropertyPages)obj).GetPages(uuids); if (uuids.cElems > 0) { return true; } } finally { if (uuids.pElems != IntPtr.Zero) { Marshal.FreeCoTaskMem(uuids.pElems); } } } catch { } return false; } return false; } [ SuppressMessage("Microsoft.Globalization", "CA1303:DoNotPassLiteralsAsLocalizedParameters") // This was shipped in Everett. ] public override bool EditComponent(ITypeDescriptorContext context, object obj, IWin32Window parent) { IntPtr handle = (parent == null ? IntPtr.Zero : parent.Handle); // try to get the page guid if (obj is NativeMethods.IPerPropertyBrowsing) { // check for a property page Guid guid = Guid.Empty; int hr = ((NativeMethods.IPerPropertyBrowsing)obj).MapPropertyToPage(NativeMethods.MEMBERID_NIL, out guid); if (hr == NativeMethods.S_OK) { if (!guid.Equals(Guid.Empty)) { object o = obj; SafeNativeMethods.OleCreatePropertyFrame(new HandleRef(parent, handle), 0, 0, "PropertyPages", 1, ref o, 1, new Guid[]{guid}, Application.CurrentCulture.LCID, 0, IntPtr.Zero); return true; } } } if (obj is NativeMethods.ISpecifyPropertyPages) { bool failed = false; Exception failureException; try { NativeMethods.tagCAUUID uuids = new NativeMethods.tagCAUUID(); try { ((NativeMethods.ISpecifyPropertyPages)obj).GetPages(uuids); if (uuids.cElems <= 0) { return false; } } catch { return false; } try { object o = obj; SafeNativeMethods.OleCreatePropertyFrame(new HandleRef(parent, handle), 0, 0, "PropertyPages", 1, ref o, uuids.cElems, new HandleRef(uuids, uuids.pElems), Application.CurrentCulture.LCID, 0, IntPtr.Zero); return true; } finally { if (uuids.pElems != IntPtr.Zero) { Marshal.FreeCoTaskMem(uuids.pElems); } } } catch (Exception ex1) { failed = true; failureException = ex1; } if (failed) { String errString = SR.GetString(SR.ErrorPropertyPageFailed); IUIService uiSvc = (context != null) ? ((IUIService) context.GetService(typeof(IUIService))) : null; if (uiSvc == null) { RTLAwareMessageBox.Show(null, errString, SR.GetString(SR.PropertyGridTitle), MessageBoxButtons.OK, MessageBoxIcon.Error, MessageBoxDefaultButton.Button1, 0); } else if (failureException != null) { uiSvc.ShowError(failureException, errString); } else { uiSvc.ShowError(errString); } } } return false; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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