文件允许拖入窗口

WhatDamon · Aug 20, 2024 · a774461 · a774461
1 parent 5a6c919
commit a774461
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Showing 2 changed files with 81 additions and 5 deletions.
diff --git a/WndMain.Designer.cs b/WndMain.Designer.cs
diff --git a/WndMain.cs b/WndMain.cs
@@ -1,5 +1,7 @@
 using System;
+using System.Runtime.InteropServices;
 using System.Windows.Forms;
+using static System.Windows.Forms.VisualStyles.VisualStyleElement;
 
 namespace NCMDumpGUI
 {
@@ -10,6 +12,59 @@ public WndMain()
             InitializeComponent();
         }
 
+        #region fields
+        private const int WM_SYSCOMMAND = 0X112;
+        private const int MF_STRING = 0X0;
+        private const int MF_SEPARATOR = 0X800;
+        private enum SystemMenuItem : int
+        {
+            About,
+            FeedBack,
+        }
+        #endregion
+
+        #region GetSystemMenu
+        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
+        private static extern IntPtr GetSystemMenu(IntPtr hWnd, bool bRevert);
+        #endregion
+
+        #region AppendMenu
+        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
+        private static extern bool AppendMenu(IntPtr hMenu, int uFlags, int uIDNewItem, string lpNewItem);
+        #endregion
+
+        #region InsertMenu
+        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
+        private static extern bool InsertMenu(IntPtr hMenu, int uPosition, int uFlags, int uIDNewItem, string lpNewItem);
+        #endregion
+
+        #region OnHandleCreated
+        protected override void OnHandleCreated(EventArgs e)
+        {
+            base.OnHandleCreated(e);
+            var hSysMenu = GetSystemMenu(this.Handle, false);
+            AppendMenu(hSysMenu, MF_SEPARATOR, 0, String.Empty);
+            AppendMenu(hSysMenu, MF_STRING, (int)SystemMenuItem.About, "关于");
+        }
+        #endregion
+
+        #region WndProc
+        protected override void WndProc(ref Message m)
+        {
+            base.WndProc(ref m);
+
+            if (m.Msg == WM_SYSCOMMAND)
+            {
+                switch ((SystemMenuItem)m.WParam)
+                {
+                    case SystemMenuItem.About:
+                        MessageBox.Show("NCMDumpGUI v1.0.0.1\n基于libncmdump开发", "关于", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                        break;
+                }
+            }
+        }
+        #endregion
+
         private void browseButton_Click(object sender, EventArgs e)
         {
             OpenFileDialog dialog = new OpenFileDialog();
@@ -47,8 +102,9 @@ private void convertButton_Click(object sender, EventArgs e)
                     neteaseCrypt.FixMetadata();
                 }
                 neteaseCrypt.Destroy();
-                if (result != 0) {
-                    toolStripStatusLabel2.Text = "发生错误，错误代码：" + result.ToString();
+                if (result != 0)
+                {
+                    toolStripStatusLabel2.Text = "发生错误，返回值为：" + result.ToString();
                 }
                 else
                 {
@@ -67,5 +123,22 @@ public void WndMain_KeyDown(object sender, KeyEventArgs e)
                 convertButton.PerformClick();
             }
         }
+
+        private void WndMain_DragEnter(object sender, DragEventArgs e)
+        {
+            if (e.Data.GetDataPresent(DataFormats.FileDrop))
+            {
+                e.Effect = DragDropEffects.All;
+            }
+            else
+            {
+                e.Effect = DragDropEffects.None;
+            }
+        }
+
+        private void WndMain_DragDrop(object sender, DragEventArgs e)
+        {
+            filepathTextBox.Text = ((System.Array)e.Data.GetData(DataFormats.FileDrop)).GetValue(0).ToString();
+        }
     }
 }