无边框窗体及移动

//关闭按钮&＃xff0c;鼠标移入后的事件private void pictureBox1_MouseEnter(object sender, EventArgs e){pictureBox1.Image &＃61; Image.FromFile("E:\\0425班课程\\6. winform 窗体\\winform团队项目\\diancanxitong xiangmu\\Buttons\\btn_close_highlight.png");//pictureBox控件的Name.BackgroundImage&＃61;Image.FromFile(括号里面是文件路径&＃xff0c;注意要用双斜线);}//鼠标按下后的事件&＃xff0c;执行按钮变色&＃xff0c;这里是给他切换了一张图片private void pictureBox1_MouseDown(object sender, MouseEventArgs e){pictureBox1.Image &＃61; Image.FromFile("E:\\0425班课程\\6. winform 窗体\\winform团队项目\\diancanxitong xiangmu\\Buttons\\btn_close_down.png");}//鼠标移出时将变为原来的颜色&＃xff0c;将原图片换回去private void pictureBox1_MouseLeave(object sender, EventArgs e){pictureBox1.Image &＃61; Image.FromFile("E:\\0425班课程\\6. winform 窗体\\winform团队项目\\diancanxitong xiangmu\\Buttons\\btn_close_disable.png");}//鼠标点击关闭按钮时执行窗体关闭private void pictureBox1_Click(object sender, EventArgs e){this.Close();}

//窗体移动API[DllImport("user32.dll")]//DllImport需要引用命名空间public static extern bool ReleaseCapture();[DllImport("user32.dll")]public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int IParam);public const int WM_SYSCOMMAND &＃61; 0x0112;public const int SC_MOVE &＃61; 0xF010;public const int HTCAPTION &＃61; 0x0002;[DllImport("user32")]private static extern int SendMessage(IntPtr hwnd, int wMsg, int wParam, IntPtr lParam);private const int WM_SETREDRAW &＃61; 0xB;
private void XG_MouseDown(object sender, MouseEventArgs e)//此处是窗体事件中&＃xff0c;鼠标按下事件private void 自己窗体的名字_MouseDown....{if (this.WindowState &＃61;&＃61; FormWindowState.Normal){ReleaseCapture();SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE &＃43; HTCAPTION, 0);}}