update

2026-09-28 05:10:48 +00:00 · 2021-08-09 19:05:20 -04:00
parent 6b68cb9b97
commit 10f1c8daa0
320 changed files with 23614 additions and 2195 deletions
@@ -0,0 +1,87 @@
+using System;
+using System.Drawing;
+using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.ComTypes;
+using System.Text;
+
+namespace stonevox
+{
+    [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+    [Guid("00000122-0000-0000-C000-000000000046")] // This is the value of IID_IDropTarget from the Platform SDK.
+    [ComImport]
+    public interface IDropTarget
+    {
+        void DragEnter([In] IDataObject dataObject, [In] uint keyState, [In] Point pt, [In, Out] ref uint effect);
+        void DragOver([In] uint keyState, [In] Point pt, [In, Out] ref uint effect);
+        void DragLeave();
+        void Drop([In] IDataObject dataObject, [In] uint keyState, [In] Point pt, [In, Out] ref uint effect);
+    }
+
+
+    static class NativeMethods
+    {
+        public const int CF_HDROP = 15;
+
+        [DllImport("shell32.dll", CharSet = CharSet.Unicode)]
+        public static extern int DragQueryFile(HandleRef hDrop, int iFile, [Out] StringBuilder lpszFile, int cch);
+
+        [DllImport("ole32.dll")]
+        internal static extern void ReleaseStgMedium(ref STGMEDIUM medium);
+    }
+
+    public class DragDropTarget : stonevox.IDropTarget
+    {
+        public void DragEnter(IDataObject dataObject, uint keyState, Point pt, ref uint effect)
+        {
+        }
+
+        public void DragOver(uint keyState, Point pt, ref uint effect)
+        {
+        }
+
+        public void DragLeave()
+        {
+        }
+
+        public void Drop(IDataObject dataObject, uint keyState, Point pt, ref uint effect)
+        {
+            FORMATETC format = new FORMATETC()
+            {
+                cfFormat = NativeMethods.CF_HDROP,
+                dwAspect = DVASPECT.DVASPECT_CONTENT,
+                tymed = TYMED.TYMED_HGLOBAL
+            };
+            STGMEDIUM medium;
+            string[] files;
+            dataObject.GetData(ref format, out medium);
+            try
+            {
+                IntPtr dropHandle = medium.unionmember;
+                int fileCount = NativeMethods.DragQueryFile(new HandleRef(this, dropHandle), -1, null, 0);
+                files = new string[fileCount];
+                for (int x = 0; x < fileCount; ++x)
+                {
+                    int size = NativeMethods.DragQueryFile(new HandleRef(this, dropHandle), x, null, 0);
+                    if (size > 0)
+                    {
+                        StringBuilder fileName = new StringBuilder(size + 1);
+                        if (NativeMethods.DragQueryFile(new HandleRef(this, dropHandle), x, fileName, fileName.Capacity) > 0)
+                            files[x] = fileName.ToString();
+                    }
+                }
+            }
+            finally
+            {
+                NativeMethods.ReleaseStgMedium(ref medium);
+            }
+
+            foreach (string file in files)
+            {
+                Client.OpenGLContextThread.Add(() => 
+                {
+                    ImportExportUtil.Import(file);
+                });
+            }
+        }
+    }
+}