按照比例缩放窗体控件及字体，如需等比例缩放，只需将x，y的比例设置成相同即可。
为了减小误差，建议使用原始尺寸来计算比例。
1 private float X, Y; 2 3 private bool b = false; 4 5 public MainForm() 6 { 7 InitializeComponent(); 8 9 X = this.Width; 10 Y = this.Height; 11 12 SetTag(this); 13 14 b = true; 15 } 16 17 protected override void OnSizeChanged(EventArgs e) 18 { 19 if (!b) return; 20 21 float newx = (this.Width) / X; 22 float newy = this.Height / Y; 23 SetControls(newx, newx, this); 24 25 base.OnSizeChanged(e); 26 } 27 28 /// <summary> 29 /// 存储原始控件参数 30 /// </summary> 31 /// <param name="cons"></param> 32 private void SetTag(Control cons) 33 { 34 foreach (Control con in cons.Controls) 35 { 36 con.Tag = con.Width + ":" + con.Height + ":" + con.Left + ":" + con.Top + ":" + con.Font.Size; 37 if (con.Controls.Count > 0) 38 SetTag(con); 39 } 40 } 41 42 /// <summary> 43 /// 按照比例缩放控件大小及字体 44 /// </summary> 45 /// <param name="newx"></param> 46 /// <param name="newy"></param> 47 /// <param name="cons"></param> 48 private void SetControls(float newx, float newy, Control cons) 49 { 50 foreach (Control con in cons.Controls) 51 { 52 string[] mytag = con.Tag.ToString().Split(new char[] { ':' }); 53 int width = (int)(Convert.ToSingle(mytag[0]) * newx); 54 int height = (int)(Convert.ToSingle(mytag[1]) * newy); 55 int x = (int)(Convert.ToSingle(mytag[2]) * newx); 56 int y = (int)(Convert.ToSingle(mytag[3]) * newy); 57 con.Location = new Point(x, y); 58 con.Size = new System.Drawing.Size(width, height); 59 Single currentSize = Convert.ToSingle(mytag[4]) * newy; 60 con.Font = new Font(con.Font.Name, currentSize, con.Font.Style, con.Font.Unit); 61 62 if (con.Controls.Count > 0) 63 { 64 SetControls(newx, newy, con); 65 } 66 } 67 }
