标签:cte ide idt use otto height 鼠标 尺寸 cas
#region 无边框窗体移动改变大小 [DllImport("user32.dll")] public static extern bool ReleaseCapture(); [DllImport("user32.dll")] public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam); public const int WM_SYSCOMMAND = 0x0112; public const int SC_MOVE = 0xF010; public const int HTCAPTION = 0x0002; const int HTLEFT = 10; const int HTRIGHT = 11; const int HTTOP = 12; const int HTTOPLEFT = 13; const int HTTOPRIGHT = 14; const int HTBOTTOM = 15; const int HTBOTTOMLEFT = 0x10; const int HTBOTTOMRIGHT = 17; public bool ManualResize { get { return this.FormBorderStyle == System.Windows.Forms.FormBorderStyle.None && this.WindowState == FormWindowState.Normal; } } protected override void WndProc(ref Message m) { switch (m.Msg) { case 0x0084: base.WndProc(ref m); if (ManualResize) { Point vPoint = new Point((int)m.LParam & 0xFFFF, (int)m.LParam >> 16 & 0xFFFF); vPoint = PointToClient(vPoint); if (vPoint.X <= 5) if (vPoint.Y <= 5) m.Result = (IntPtr)HTTOPLEFT; else if (vPoint.Y >= ClientSize.Height - 5) m.Result = (IntPtr)HTBOTTOMLEFT; else m.Result = (IntPtr)HTLEFT; else if (vPoint.X >= ClientSize.Width - 5) if (vPoint.Y <= 5) m.Result = (IntPtr)HTTOPRIGHT; else if (vPoint.Y >= ClientSize.Height - 5) m.Result = (IntPtr)HTBOTTOMRIGHT; else m.Result = (IntPtr)HTRIGHT; else if (vPoint.Y <= 5) m.Result = (IntPtr)HTTOP; else if (vPoint.Y >= ClientSize.Height - 5) m.Result = (IntPtr)HTBOTTOM; } break; case 0x0201: //鼠标左键按下的消息 if (ManualResize) { m.Msg = 0x00A1; //更改消息为非客户区按下鼠标 m.LParam = IntPtr.Zero; //默认值 m.WParam = new IntPtr(2); //鼠标放在标题栏内 } base.WndProc(ref m); break; default: try { base.WndProc(ref m); } catch (Exception) { } break; } } #endregion
标签:cte ide idt use otto height 鼠标 尺寸 cas
原文地址:https://www.cnblogs.com/yc1224/p/12071963.html