EntryPointNotFoundException: 无法在 DLL“user32.dll”中找到名为“DragAcceptFiles”的入口点。
StackTrace:
   在 DynamicClass.FloatingBallForm.DragAcceptFiles(IntPtr hWnd, Boolean fAccept)
   在 DynamicClass.FloatingBallForm.OnFormClosing(FormClosingEventArgs e)
   在 System.Windows.Forms.Form.RaiseFormClosingOnAppExit()
   在 System.Windows.Forms.Application.ExitInternal()
   在 System.Windows.Forms.Application.ThreadContext.OnThreadException(Exception t)
   在 System.Windows.Forms.Control.WndProcException(Exception e)
   在 System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
   在 System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
   在 System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
   在 System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
   在 System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
   在 DynamicClass.FloatingBallApp.<>c__DisplayClass1.<Toggle>b__0()
   在 System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   在 System.Threading.ThreadHelper.ThreadStart()