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C# 弹出层移动

groupPrint.MouseDown += GroupBox1_MouseDown;#region 弹出层移动 [System.Runtime.InteropServices.DllImport("user32.dll", EntryPoint = "ReleaseCapture")] public static extern void ReleaseCapture(); [System.Runtime.InteropServices.DllImport("user32.dll", EntryPoint = "SendMessage")] public static extern void SendMessage(int hwnd, int wMsg, int wParam, int lParam); pr...