c#改变winform窗体 标题的字体大小 背景 和颜色

本文介绍了一个使用 C# 实现的自定义 Windows Forms 应用程序窗口样式的方法,包括通过拦截特定消息来绘制窗体标题栏背景和文本,并实现标题栏点击事件反馈。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Drawing.Drawing2D;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {

        [DllImport("user32.dll")]
        private static extern IntPtr GetWindowDC(IntPtr hWnd);
        [DllImport("user32.dll")]
        private static extern int ReleaseDC(IntPtr hWnd, IntPtr hDC);

        private const int WM_NCPAINT = 0x0085;
        private const int WM_NCACTIVATE = 0x0086;
        private const int WM_NCLBUTTONDOWN = 0x00A1;
        protected override void WndProc(ref Message m)
        {
            base.WndProc(ref m);
            Rectangle vRectangle = new Rectangle(3, 3, Width-6, 21);
            switch (m.Msg)
            {
                case WM_NCPAINT:
                case WM_NCACTIVATE:
                    IntPtr vHandle = GetWindowDC(m.HWnd);
                    Graphics vGraphics = Graphics.FromHdc(vHandle);
                    vGraphics.FillRectangle(new LinearGradientBrush(vRectangle,
                        Color.Pink, Color.Purple, LinearGradientMode.BackwardDiagonal),
                        vRectangle);

                    StringFormat vStringFormat = new StringFormat();
                    vStringFormat.Alignment = StringAlignment.Center;
                    vStringFormat.LineAlignment = StringAlignment.Center;
                    vGraphics.DrawString("Form1", Font, Brushes.BlanchedAlmond,
                        vRectangle, vStringFormat);

                    vGraphics.Dispose();
                    ReleaseDC(m.HWnd, vHandle);
                    break;
                case WM_NCLBUTTONDOWN:
                    Point vPoint = new Point((int)m.LParam);
                    vPoint.Offset(-Left, -Top);
                    if (vRectangle.Contains(vPoint))
                        MessageBox.Show(vPoint.ToString());
                    break;
            }
        }


        public Form1()
        {
            InitializeComponent();
        }

        
    }
}
自定义winform 窗口标题栏 主要代码 public partial class ZForm : Form { private bool moving = false; private Point oldMousePosition; public new FormBorderStyle FormBorderStyle { get { return base.FormBorderStyle; } set { if (value != FormBorderStyle.Sizable && value != FormBorderStyle.SizableToolWindow) { titlepanel.Controls.Remove(button2); } base.FormBorderStyle = value; } } #region 隐藏父类的属性,使其不可见 [Browsable(false)] public new string Text { get { return titlelabel.Text; } set { } } [Browsable(false)] public new bool ControlBox { get { return false; } set { base.ControlBox = false; } } #endregion [Browsable(true)] [EditorBrowsable(EditorBrowsableState.Always)] [Description("窗体标题")] public string Title { get { return titlelabel.Text; } set { titlelabel.Text = value; } } [Browsable(true)] [EditorBrowsable(EditorBrowsableState.Always)] [Description("窗体标题字体样式")] public Font TitleFont { get { return titlelabel.Font; } set { titlelabel.Font = value; } } [Browsable(true)] [EditorBrowsable(EditorBrowsableState.Always)] [Description("窗体标题字体颜色")] public Color TitleColor { get { return titlelabel.ForeColor; } set { titlelabel.ForeColor = value; } } [Browsable(true)] [EditorBrowsable(EditorBrowsableState.Always)] [Description("窗体标题背景色")] public Color TitleBarBackColor { get { return titlepanel.BackColor; } set { titlepanel.BackColor = value; } } public new bool MaximizeBox { get { return titlepanel.Contains(button2); } set { if (!value) { titlepanel.Controls.Remove(button2); } else if (!titlepanel.Contains(button2)) { titlepanel.Controls.Add(button2); } } } public new bool MinimizeBox { get { return titlepanel.Contains(button3); } set { if (!value) { titlepanel.Controls.Remove(button3); } else if (!titlepanel.Contains(button3)) { titlepanel.Controls.Add(button3); } } } private void ResetTitlePanel() { base.ControlBox = false; base.Text = null; SetToolTip(button1, "关闭"); button2.Size = button1.Size; SetToolTip(button2, "最大化或还原"); button3.Size = button1.Size; SetToolTip(button3, "最小化"); } private void SetToolTip(Control ctrl, string tip) { new ToolTip().SetToolTip(ctrl, tip); } public ZForm() { InitializeComponent(); ResetTitlePanel(); } private void Titlebutton_Click(object sender, EventArgs e) { Button btn = (Button)sender; switch (btn.Tag.ToString()) { case "close": { this.Close(); break; } case "max": { if (this.WindowState == FormWindowState.Maximized) { this.WindowState = FormWindowState.Normal; } else { this.WindowState = FormWindowState.Maximized; } break; } case "min": { if (this.WindowState != FormWindowState.Minimized) { this.WindowState = FormWindowState.Minimized; } break; } } } private void Titlepanel_MouseDown(object sender, MouseEventArgs e) { if (this.WindowState == FormWindowState.Maximized) { return; } //Titlepanel.Cursor = Cursors.NoMove2D; oldMousePosition = e.Location; moving = true; } private void Titlepanel_MouseUp(object sender, MouseEventArgs e) { //Titlepanel.Cursor = Cursors.Default; moving = false; } private void Titlepanel_MouseMove(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left && moving) { Point newPosition = new Point(e.Location.X - oldMousePosition.X, e.Location.Y - oldMousePosition.Y); this.Location += new Size(newPosition); } } private void Titlepanel_DoubleClick(object sender, EventArgs e) { if (titlepanel.Contains(button2)) { button2.PerformClick(); } } private void titlepanel_ControlRemoved(object sender, ControlEventArgs e) { switch (e.Control.Name) { case "button2": { if (titlepanel.Contains(button3)) { button3.Left = button1.Left - button1.Width; } break; } } } private void titlepanel_ControlAdded(object sender, ControlEventArgs e) { switch (e.Control.Name) { case "button2": { if (titlepanel.Contains(button3)) { button3.Left = button2.Left - button2.Width; } break; } case "button3": { if (titlepanel.Contains(button2)) { button3.Left = button2.Left - button2.Width; } break; } } } }
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