剥离第一阶段需要做的函数，梳理关系，新增测试dll工程

2022-10-10 11:52:53 +08:00
parent 698e1223fa
commit 6d2b284f36
44 changed files with 1500 additions and 302 deletions
@@ -0,0 +1,88 @@
+using System;
+using System.Runtime.InteropServices;
+using System.Collections;
+
+namespace HSI_SEVENOCEAN_EF1_CsTest
+{
+  class User32Api
+  {
+    private static readonly Hashtable ProcessWnd = null;
+
+    public delegate bool Wndenumproc(IntPtr hwnd, uint lParam);
+
+    static User32Api()
+    {
+      if (ProcessWnd == null)
+      {
+        ProcessWnd = new Hashtable();
+      }
+    }
+
+    [DllImport("user32.dll", EntryPoint = "EnumWindows", SetLastError = true)]
+    public static extern bool EnumWindows(Wndenumproc lpEnumFunc, uint lParam);
+
+    [DllImport("user32.dll", EntryPoint = "GetParent", SetLastError = true)]
+    public static extern IntPtr GetParent(IntPtr hWnd);
+
+    [DllImport("user32.dll", EntryPoint = "GetWindowThreadProcessId")]
+    public static extern uint GetWindowThreadProcessId(IntPtr hWnd, ref uint lpdwProcessId);
+
+    [DllImport("user32.dll", EntryPoint = "IsWindow")]
+    public static extern bool IsWindow(IntPtr hWnd);
+
+    [DllImport("kernel32.dll", EntryPoint = "SetLastError")]
+    public static extern void SetLastError(uint dwErrCode);
+
+    public static IntPtr GetCurrentWindowHandle()
+    {
+      IntPtr ptrWnd = IntPtr.Zero;
+      uint uiPid = (uint)System.Diagnostics.Process.GetCurrentProcess().Id;  // 当前进程 ID
+      object objWnd = ProcessWnd[uiPid];
+
+      if (objWnd != null)
+      {
+        ptrWnd = (IntPtr)objWnd;
+        if (ptrWnd != IntPtr.Zero && IsWindow(ptrWnd))  // 从缓存中获取句柄
+        {
+          return ptrWnd;
+        }
+        else
+        {
+          ptrWnd = IntPtr.Zero;
+        }
+      }
+
+      bool bResult = EnumWindows(new Wndenumproc(EnumWindowsProc), uiPid);
+      // 枚举窗口返回 false 并且没有错误号时表明获取成功
+      if (!bResult && Marshal.GetLastWin32Error() == 0)
+      {
+        objWnd = ProcessWnd[uiPid];
+        if (objWnd != null)
+        {
+          ptrWnd = (IntPtr)objWnd;
+        }
+      }
+
+      return ptrWnd;
+    }
+
+    private static bool EnumWindowsProc(IntPtr hwnd, uint lParam)
+    {
+      uint uiPid = 0;
+
+      if (GetParent(hwnd) == IntPtr.Zero)
+      {
+        GetWindowThreadProcessId(hwnd, ref uiPid);
+        if (uiPid == lParam)    // 找到进程对应的主窗口句柄
+        {
+          ProcessWnd[uiPid] = hwnd;   // 把句柄缓存起来
+          SetLastError(0);    // 设置无错误
+          return false;   // 返回 false 以终止枚举窗口
+        }
+      }
+
+      return true;
+    }
+
+  }
+}