c# - titulo - mover ventana sin bordes vb

¿Cómo mover y cambiar el tamaño de un formulario sin un borde?

Question

¿Alguien sabe cómo puedo cambiar el tamaño de un winform cuando no tiene borde? No quiero el borde predeterminado que tiene Windows, así que cambié la propiedad "FormBorderStyle" a "None". Esto eliminó el borde, aunque ahora no se puede cambiar el tamaño. He descubierto cómo mover el formulario, solo necesito saber cómo redimensionarlo.

Answer 1

"Sizer" es el panel azul claro en la esquina inferior derecha, introduzca la descripción de la imagen aquí

    int Mx;
    int My;
    int Sw;
    int Sh;

    bool mov;

    void SizerMouseDown(object sender, MouseEventArgs e)
    {
        mov = true;
        My = MousePosition.Y;
        Mx = MousePosition.X;
        Sw = Width;
        Sh = Height;
    }

    void SizerMouseMove(object sender, MouseEventArgs e)
    {
        if (mov == true) {
            Width = MousePosition.X - Mx + Sw;
            Height = MousePosition.Y - My + Sh;
        }
    }

    void SizerMouseUp(object sender, MouseEventArgs e)
    {
        mov = false;
    }

Answer 2

(elaborado: en el comentario 2)

Cambiar el tamaño de "Formulario" de todo lugar y moverlo >>> Código completo <<<<<

// Primero, la mayoría para agregar esta clase

 class ReSize
     {

        private bool Above, Right, Under, Left, Right_above, Right_under, Left_under, Left_above;


        int Thickness=6;  //Thickness of border  u can cheang it
        int Area = 8;     //Thickness of Angle border 


        /// <summary>
        /// Constructor
        /// </summary>
        /// <param name="thickness">set thickness of form border</param>
        public ReSize(int thickness)
        {
            Thickness = thickness;
        }

        /// <summary>
        /// Constructor set thickness of form border=1
        /// </summary>
        public ReSize()
        {
            Thickness = 10;
        }

        //Get Mouse Position
        public  string getMosuePosition(Point mouse, Form form)
        {
            bool above_underArea = mouse.X > Area && mouse.X < form.ClientRectangle.Width - Area; /* |/AngleArea(Left_Above)/(=======above_underArea========)/AngleArea(Right_Above)/| */ //Area===>(==)
            bool right_left_Area = mouse.Y > Area && mouse.Y < form.ClientRectangle.Height - Area; 

            bool _Above=mouse.Y <= Thickness;  //Mouse in Above All Area
            bool _Right= mouse.X >= form.ClientRectangle.Width - Thickness;
            bool _Under=mouse.Y >= form.ClientRectangle.Height - Thickness;
            bool _Left=mouse.X <= Thickness;

            Above = _Above && (above_underArea); if (Above) return "a";   /*Mouse in Above All Area WithOut Angle Area */
            Right = _Right && (right_left_Area); if (Right) return "r";
            Under = _Under && (above_underArea); if (Under) return "u";
            Left = _Left && (right_left_Area);   if (Left) return "l";


            Right_above =/*Right*/ (_Right && (!right_left_Area)) && /*Above*/ (_Above && (!above_underArea));   if (Right_above) return "ra";     /*if Mouse  Right_above */
            Right_under =/* Right*/((_Right) && (!right_left_Area)) && /*Under*/(_Under && (!above_underArea));  if (Right_under) return "ru";     //if Mouse  Right_under 
            Left_under = /*Left*/((_Left) && (!right_left_Area)) && /*Under*/ (_Under && (!above_underArea));    if (Left_under) return "lu";      //if Mouse  Left_under
            Left_above = /*Left*/((_Left) && (!right_left_Area)) && /*Above*/(_Above && (!above_underArea));     if (Left_above) return "la";      //if Mouse  Left_above

            return "";

        }


    }

Entonces forma cs

 public partial class FormGDI : Form
    {

        ReSize resize = new ReSize();     // ReSize Class "//" To Help Resize Form <None Style>


        public FormGDI()
        {
            InitializeComponent();
            this.SetStyle(ControlStyles.ResizeRedraw, true);

        }


        private const int cGrip = 16;      // Grip size
        private const int cCaption = 32;   // Caption bar height;

        protected override void OnPaint(PaintEventArgs e)
        {
            //this if you want to draw   (if)

            Color theColor = Color.FromArgb(10, 20, 20, 20);
            theColor = Color.DarkBlue;
            int BORDER_SIZE = 4;
            ControlPaint.DrawBorder(e.Graphics, ClientRectangle,
                                         theColor, BORDER_SIZE, ButtonBorderStyle.Dashed,
                                         theColor, BORDER_SIZE, ButtonBorderStyle.Dashed,
                                         theColor, BORDER_SIZE, ButtonBorderStyle.Dashed,
                                         theColor, BORDER_SIZE, ButtonBorderStyle.Dashed);


            Rectangle rc = new Rectangle(this.ClientSize.Width - cGrip, this.ClientSize.Height - cGrip, cGrip, cGrip);
            ControlPaint.DrawSizeGrip(e.Graphics, this.BackColor, rc);
            rc = new Rectangle(0, 0, this.ClientSize.Width, cCaption);
            e.Graphics.FillRectangle(Brushes.DarkBlue, rc);



            base.OnPaint(e);
        }


        //set MinimumSize to Form
        public override Size MinimumSize
        {
            get
            {
                return base.MinimumSize;
            }
            set
            {
                base.MinimumSize = new Size(179, 51); 
            }
        }

        //
        //override  WndProc  
        //
        protected override void WndProc(ref Message m)
        {
            //****************************************************************************

            int x = (int)(m.LParam.ToInt64() & 0xFFFF);               //get x mouse position
            int y = (int)((m.LParam.ToInt64() & 0xFFFF0000) >> 16);   //get y mouse position  you can gave (x,y) it from "MouseEventArgs" too
            Point pt = PointToClient(new Point(x, y));

            if (m.Msg == 0x84)
            {
                switch (resize.getMosuePosition(pt, this))
                {
                    case "l": m.Result = (IntPtr)10; return;  // the Mouse on Left Form
                    case "r": m.Result = (IntPtr)11; return;  // the Mouse on Right Form
                    case "a": m.Result = (IntPtr)12; return;
                    case "la": m.Result = (IntPtr)13; return;
                    case "ra": m.Result = (IntPtr)14; return;
                    case "u": m.Result = (IntPtr)15; return;
                    case "lu": m.Result = (IntPtr)16; return;
                    case "ru": m.Result = (IntPtr)17; return; // the Mouse on Right_Under Form
                    case "": m.Result = pt.Y < 32 /*mouse on title Bar*/ ? (IntPtr)2 : (IntPtr)1; return;  

                }
            }

              base.WndProc(ref m);

        }

    }

Answer 3

Algunos ejemplos de código que permiten mover y cambiar el tamaño del formulario:

  public partial class Form1 : Form {
    public Form1() {
      InitializeComponent();
      this.FormBorderStyle = FormBorderStyle.None;
      this.DoubleBuffered = true;
      this.SetStyle(ControlStyles.ResizeRedraw, true);
    }
    private const int cGrip = 16;      // Grip size
    private const int cCaption = 32;   // Caption bar height;

    protected override void OnPaint(PaintEventArgs e) {
      Rectangle rc = new Rectangle(this.ClientSize.Width - cGrip, this.ClientSize.Height - cGrip, cGrip, cGrip);
      ControlPaint.DrawSizeGrip(e.Graphics, this.BackColor, rc);
      rc = new Rectangle(0, 0, this.ClientSize.Width, cCaption);
      e.Graphics.FillRectangle(Brushes.DarkBlue, rc);
    }

    protected override void WndProc(ref Message m) {
      if (m.Msg == 0x84) {  // Trap WM_NCHITTEST
        Point pos = new Point(m.LParam.ToInt32());
        pos = this.PointToClient(pos);
        if (pos.Y < cCaption) {
          m.Result = (IntPtr)2;  // HTCAPTION
          return;
        }
        if (pos.X >= this.ClientSize.Width - cGrip && pos.Y >= this.ClientSize.Height - cGrip) {
          m.Result = (IntPtr)17; // HTBOTTOMRIGHT
          return;
        }
      }
      base.WndProc(ref m);
    }
  }

Answer 4

Aquí hay un ejemplo completo de un formulario personalizado con los 8 puntos de cambio de tamaño:

public partial class Form1 : Form {
public Form1() {
  InitializeComponent();
  this.FormBorderStyle = FormBorderStyle.None; // no borders
  this.DoubleBuffered = true;
  this.SetStyle(ControlStyles.ResizeRedraw, true); // this is to avoid visual artifacts
}

protected override void OnPaint(PaintEventArgs e) // you can safely omit this method if you want
{
    e.Graphics.FillRectangle(Brushes.Green, Top);
    e.Graphics.FillRectangle(Brushes.Green, Left);
    e.Graphics.FillRectangle(Brushes.Green, Right);
    e.Graphics.FillRectangle(Brushes.Green, Bottom);
}

private const int
    HTLEFT = 10,
    HTRIGHT = 11,
    HTTOP = 12,
    HTTOPLEFT = 13,
    HTTOPRIGHT = 14,
    HTBOTTOM = 15,
    HTBOTTOMLEFT = 16,
    HTBOTTOMRIGHT = 17;

const int _ = 10; // you can rename this variable if you like

Rectangle Top { get { return new Rectangle(0, 0, this.ClientSize.Width, _); } }
Rectangle Left { get { return new Rectangle(0, 0, _, this.ClientSize.Height); } }
Rectangle Bottom { get { return new Rectangle(0, this.ClientSize.Height - _, this.ClientSize.Width, _); } }
Rectangle Right { get { return new Rectangle(this.ClientSize.Width - _, 0, _, this.ClientSize.Height); } }

Rectangle TopLeft { get { return new Rectangle(0, 0, _, _); } }
Rectangle TopRight { get { return new Rectangle(this.ClientSize.Width - _, 0, _, _); } }
Rectangle BottomLeft { get { return new Rectangle(0, this.ClientSize.Height - _, _, _); } }
Rectangle BottomRight { get { return new Rectangle(this.ClientSize.Width - _, this.ClientSize.Height - _, _, _); } }


protected override void WndProc(ref Message message)
{
    base.WndProc(ref message);

    if (message.Msg == 0x84) // WM_NCHITTEST
    {
        var cursor = this.PointToClient(Cursor.Position);

        if (TopLeft.Contains(cursor)) message.Result = (IntPtr)HTTOPLEFT;
   else if (TopRight.Contains(cursor)) message.Result = (IntPtr)HTTOPRIGHT;
   else if (BottomLeft.Contains(cursor)) message.Result = (IntPtr)HTBOTTOMLEFT;
   else if (BottomRight.Contains(cursor)) message.Result = (IntPtr)HTBOTTOMRIGHT;

   else if (Top.Contains(cursor)) message.Result = (IntPtr)HTTOP;
   else if (Left.Contains(cursor)) message.Result = (IntPtr)HTLEFT;
   else if (Right.Contains(cursor)) message.Result = (IntPtr)HTRIGHT;
   else if (Bottom.Contains(cursor)) message.Result = (IntPtr)HTBOTTOM;
    }
}}

Answer 5

Eche un vistazo aquí:

Cambiar el tamaño de la ventana sin bordes en la esquina inferior derecha

Answer 6

Si quita el borde, también elimina la funcionalidad incorporada para cambiar el tamaño del marco. Hay formas de evitarlo, pero tendría que crear su propia funcionalidad para arrastrar y cambiar el tamaño del borde.