Windows Moblie 笔迹图板开发

这是应一个网友的问题而做的一个小程序，可以保存为位图，我觉得还是有一定的参考价值的，所以就把相关代码贴了出来。

usingSystem;
usingSystem.Collections.Generic;
usingSystem.ComponentModel;
usingSystem.Data;
usingSystem.Drawing;
usingSystem.Text;
usingSystem.Windows.Forms;
usingSystem.IO;

namespaceHandImage
{
publicpartialclassfrmTest:Form
{
List<Points>HandTrack=newList<Points>();
publicGraphicspb_Graphics;
Bitmappb_BMP=newBitmap(239,235);

intindex=0;//第几笔
publicfrmTest()
{
InitializeComponent();
}

privatevoidpnlBar_MouseMove(objectsender,MouseEventArgse)
{
HandTrack[index].PT.Add(newPoint(e.X,e.Y));
pnlBar.Refresh();
}

privatevoidpnlBar_Paint(objectsender,PaintEventArgse)
{
pb_Graphics=Graphics.FromImage((System.Drawing.Image)pb_BMP);
pb_Graphics.Clear(pnlBar.BackColor);
foreach(PointsiteminHandTrack)
{
pb_Graphics.DrawLines(newPen(Color.Black),item.PT.ToArray());
}
e.Graphics.DrawImage(pb_BMP,0,0);
pb_Graphics.Dispose();
}

classPoints
{
publicList<Point>PT=newList<Point>();
}

privatevoidbtnClear_Click(objectsender,EventArgse)
{
index=0;
HandTrack=newList<Points>();
pnlBar.Refresh();
}

privatevoidpnlBar_MouseUp(objectsender,MouseEventArgse)
{
index++;
}

privatevoidpnlBar_MouseDown(objectsender,MouseEventArgse)
{
HandTrack.Add(newPoints());
HandTrack[index].PT.Add(newPoint(e.X,e.Y));
pnlBar.Refresh();
}

privatevoidbtnSave_Click(objectsender,EventArgse)
{
dlgSaveFile.Filter="位图(*.bmp)|*.bmp";
if(dlgSaveFile.ShowDialog()==DialogResult.OK)
{
stringstrFile=dlgSaveFile.FileName;
pb_BMP.Save(strFile,System.Drawing.Imaging.ImageFormat.Bmp);
}
}
}
}