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我想繪製一個程序。我有基本的工作，以及記錄所有鼠標點擊的方式，以便我可以將它們繪製到位圖，然後保存它，除非它不工作，使用這種方法我可以重繪圖形，除非我試圖保存位圖圖像爲空的文件？c＃中的位圖問題繪圖圖形
繼承人我的代碼：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Drawing.Imaging;
namespace Paint_Program
{
public partial class PaintImg : Form
{
public Boolean veryimportantbool = false;
int drawcount = 0;
int brushsize = 16;
List<Point> pts = new List<Point>();
Point recordpoint { get; set; }
public PaintImg()
{
InitializeComponent();
//Cursor drawCursor = new Cursor("Pencil.cur");
//this.Cursor = drawCursor;
}
private void Form1_Load(object sender, EventArgs e)
{
//Cursor.Position = new Point(this.Location.X - this.Width/2, this.Location.Y - this.Height/2)
UserControl1 userc1 = new UserControl1();
userc1.Show();
brushsize = Convert.ToInt16(label1.Text);
}
private void rectangleShape1_Click(object sender, EventArgs e)
{
}
private void Test_Click(object sender, EventArgs e)
{
//testing
//Console.WriteLine("X:" + mousex);
//onsole.WriteLine("Y: " + mousey);
}
private void Form1_SizeChanged(object sender, EventArgs e)
{
}
public void Form1_MouseClick(object sender, MouseEventArgs i)
{
drawcount = drawcount + 1;
System.Drawing.SolidBrush myBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Red);
System.Drawing.Graphics formGraphics;
formGraphics = this.CreateGraphics();
formGraphics.FillRectangle(myBrush, new Rectangle(i.X, i.Y, brushsize, brushsize));
myBrush.Dispose();
formGraphics.Dispose();
count.Text = Convert.ToString(drawcount);
}
private void Paint_Paint(object sender, PaintEventArgs e)
{
//this method will be used later when page resizing is added to the program.
//Graphics g = e.Graphics;
//Control control = (Control)sender;
//drawPoint = control.PointToScreen(new Point(MousePosition.X, MousePosition.Y));
//g.DrawRectangle(System.Drawing.Pens.Red, drawPoint.X, drawPoint.Y, 1, 1);
}
private void newToolStripButton_Click(object sender, EventArgs e)
{
//SetupDoc newsetup = new SetupDoc();
//newsetup.ShowDialog();
}
private void PaintImg_MouseMove(object sender, MouseEventArgs e)
{
}
private void panel1_Paint(object sender, PaintEventArgs e)
{
}
private void panel1_Click(object sender, MouseEventArgs i)
{
drawcount = drawcount + 1;
recordpoint = new Point(i.X, i.Y);
pts.Add(recordpoint);
System.Drawing.SolidBrush myBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Red);
System.Drawing.Graphics formGraphics;
formGraphics = this.CreateGraphics();
formGraphics.FillRectangle(myBrush, new Rectangle(i.X, i.Y, brushsize, brushsize));
myBrush.Dispose();
formGraphics.Dispose();
count.Text = Convert.ToString(drawcount);
}
private void label1_Click(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
brushsize = brushsize + 1;
label1.Text = Convert.ToString(brushsize);
}
private void button2_Click(object sender, EventArgs e)
{
brushsize = brushsize - 1;
label1.Text = Convert.ToString(brushsize);
}
private void button3_Click(object sender, EventArgs e)
{
Image bmp = new Bitmap(this.Width - panel1.Width, this.Height - panel1.Height);
using (Graphics g = Graphics.FromImage(bmp))
{
foreach (var recordpoint in pts)
{
g.FillRectangle(new SolidBrush(Color.Red), new Rectangle(Convert.ToInt16(recordpoint.X), Convert.ToInt16(recordpoint.Y), brushsize, brushsize));
}
}
bmp.Save("testing.bmp");
}
}
}
如果有人知道我在做什麼錯了，請告訴MEE！
調試你的代碼，並確定天氣或不點被填充。 –