字体预览工具 v1.0.0 初始版本

2026-09-19 23:50:45 +08:00
commit 1883e9ba77
50 changed files with 5959 additions and 0 deletions
@@ -0,0 +1,94 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace FontPreview;
+
+internal static class NativeFolderDialog
+{
+	private const uint FOS_PICKFOLDERS = 32u;
+
+	private const int SIGDN_FILESYSPATH = -2147123200;
+
+	[DllImport("shell32.dll", CharSet = CharSet.Unicode)]
+	private static extern int SHCreateItemFromParsingName([MarshalAs(UnmanagedType.LPWStr)] string pszPath, IntPtr pbc, ref Guid riid, out IntPtr ppv);
+
+	private static void AddNavPlace(IFileOpenDialog dlg, string clsidPath)
+	{
+		try
+		{
+			IntPtr ppv = IntPtr.Zero;
+			Guid riid = new Guid("43826d1e-e718-42ee-bc55-a1e261c37bfe");
+			if (SHCreateItemFromParsingName(clsidPath, IntPtr.Zero, ref riid, out ppv) == 0 && ppv != IntPtr.Zero)
+			{
+				IShellItem psi = (IShellItem)Marshal.GetObjectForIUnknown(ppv);
+				try
+				{
+					dlg.AddPlace(psi, 1);
+					return;
+				}
+				catch
+				{
+					return;
+				}
+			}
+		}
+		catch
+		{
+		}
+	}
+
+	internal static string PickFolder(IntPtr owner, string title, string initialPath)
+	{
+		IFileOpenDialog fileOpenDialog = (IFileOpenDialog)new FileOpenDialogRCW();
+		try
+		{
+			fileOpenDialog.SetTitle(title);
+			fileOpenDialog.SetOptions(32u);
+			AddNavPlace(fileOpenDialog, "::{20D04FE0-3AEA-1069-A2D8-08002B30309D}");
+			AddNavPlace(fileOpenDialog, "::{208D2C60-3AEA-1069-A2D8-08002B30309D}");
+			if (!string.IsNullOrEmpty(initialPath))
+			{
+				try
+				{
+					IntPtr ppv = IntPtr.Zero;
+					Guid riid = new Guid("43826d1e-e718-42ee-bc55-a1e261c37bfe");
+					if (SHCreateItemFromParsingName(initialPath, IntPtr.Zero, ref riid, out ppv) == 0 && ppv != IntPtr.Zero)
+					{
+						IShellItem folder = (IShellItem)Marshal.GetObjectForIUnknown(ppv);
+						fileOpenDialog.SetFolder(folder);
+					}
+				}
+				catch
+				{
+				}
+			}
+			if (fileOpenDialog.Show(owner) != 0)
+			{
+				return null;
+			}
+			fileOpenDialog.GetResult(out var ppsi);
+			if (ppsi == null)
+			{
+				return null;
+			}
+			ppsi.GetDisplayName(-2147123200, out var ppszName);
+			if (ppszName == IntPtr.Zero)
+			{
+				return null;
+			}
+			string result = Marshal.PtrToStringUni(ppszName);
+			Marshal.FreeCoTaskMem(ppszName);
+			return result;
+		}
+		finally
+		{
+			try
+			{
+				Marshal.FinalReleaseComObject(fileOpenDialog);
+			}
+			catch
+			{
+			}
+		}
+	}
+}