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Switch FolderBrowserDialog to new version and remove unused instances on forms

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dexy
2021-11-14 01:33:47 +11:00
Unverified
parent 071830b3d7
commit a2538fc976
18 changed files with 135 additions and 75 deletions
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CodeWalker.WinForms/FormUtils.cs
+86
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@@ -2,6 +2,7 @@
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using WeifenLuo.WinFormsUI.Docking;
@@ -228,6 +229,91 @@ namespace CodeWalker
}
public static class FolderBrowserExtension
{
public static DialogResult ShowDialogNew(this FolderBrowserDialog fbd)
{
return ShowDialogNew(fbd, (IntPtr)0);
}
public static DialogResult ShowDialogNew(this FolderBrowserDialog fbd, IntPtr hWndOwner)
{
if (Environment.OSVersion.Version.Major >= 6)
{
var ofd = new OpenFileDialog();
ofd.Filter = "Folders|\n";
ofd.AddExtension = false;
ofd.CheckFileExists = false;
ofd.DereferenceLinks = true;
ofd.Multiselect = false;
ofd.InitialDirectory = fbd.SelectedPath;
int result = 0;
var ns = "System.Windows.Forms";
var asmb = Assembly.GetAssembly(typeof(OpenFileDialog));
var dialogint = GetType(asmb, ns, "FileDialogNative.IFileDialog");
var dialog = Call(typeof(OpenFileDialog), ofd, "CreateVistaDialog");
Call(typeof(OpenFileDialog), ofd, "OnBeforeVistaDialog", dialog);
var options = Convert.ToUInt32(Call(typeof(FileDialog), ofd, "GetOptions"));
options |= Convert.ToUInt32(GetEnumValue(asmb, ns, "FileDialogNative.FOS", "FOS_PICKFOLDERS"));
Call(dialogint, dialog, "SetOptions", options);
var pfde = New(asmb, ns, "FileDialog.VistaDialogEvents", ofd);
var parameters = new object[] { pfde, (uint)0 };
Call(dialogint, dialog, "Advise", parameters);
var adviseres = Convert.ToUInt32(parameters[1]);
try { result = Convert.ToInt32(Call(dialogint, dialog, "Show", hWndOwner)); }
finally { Call(dialogint, dialog, "Unadvise", adviseres); }
GC.KeepAlive(pfde);
fbd.SelectedPath = ofd.FileName;
return (result == 0) ? DialogResult.OK : DialogResult.Cancel;
}
else
{
return fbd.ShowDialog();
}
}
private static Type GetType(Assembly asmb, string ns, string name)
{
Type type = null;
string[] names = name.Split('.');
if (names.Length > 0)
{
type = asmb.GetType(ns + "." + names[0]);
}
for (int i = 1; i < names.Length; i++)
{
type = type.GetNestedType(names[i], BindingFlags.NonPublic);
}
return type;
}
private static object Call(Type type, object obj, string func, params object[] parameters)
{
var mi = type.GetMethod(func, BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
if (mi == null) return null;
return mi.Invoke(obj, parameters);
}
private static object GetEnumValue(Assembly asmb, string ns, string typeName, string name)
{
var type = GetType(asmb, ns, typeName);
var fieldInfo = type.GetField(name);
return fieldInfo.GetValue(null);
}
private static object New(Assembly asmb, string ns, string name, params object[] parameters)
{
var type = GetType(asmb, ns, name);
var ctorInfos = type.GetConstructors();
foreach (ConstructorInfo ci in ctorInfos)
{
try { return ci.Invoke(parameters); }
catch { }
}
return null;
}
}
public static class Prompt