Question

C# win编程，我想实现一张图片在窗体中平滑移动

我用timer实现变换坐标（x，y），非常的卡（或者说闪烁）。求大神指点，怎么实现，才不卡（闪烁）。

Answer 1

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;

namespace WindowsApplication73
{
public partial class Form1 : Form
{
Bitmap OrgBmp = null;
int PosX = 0;
Thread T = null;

delegate void DrawForm(Bitmap CacheBmp);

public Form1()
{
InitializeComponent();

OrgBmp = new Bitmap(this.Width, this.Height);
Graphics G = Graphics.FromImage(OrgBmp);
G.FillRectangle(new SolidBrush(this.BackColor), this.Bounds);
G.Dispose();

T = new Thread(new ThreadStart(Run));
T.IsBackground = true;
T.Start();

}

void Run()
{
Bitmap CacheBmp = null;
Graphics G = null;

try
{
while (true)
{
if (++PosX > this.Width)
PosX = 0;
CacheBmp = new Bitmap(OrgBmp);
G = Graphics.FromImage(CacheBmp);
G.DrawString("ABCDEFG12345", new Font("宋体", 10), Brushes.Green, new PointF(PosX, 0));
if (!this.IsDisposed && this.IsHandleCreated)
this.Invoke(new DrawForm(DoDrawForm), new Object[] { CacheBmp });
}
}
catch
{
}
finally
{
if (G != null)
G.Dispose();
if (CacheBmp != null)
{
CacheBmp.Dispose();
GC.Collect();
}
}
}

void DoDrawForm(Bitmap CacheBmp)
{
Graphics G = null;

try
{
G = this.CreateGraphics();
G.DrawImage(CacheBmp, new Point(0, 0));
}
finally
{
if (G != null)
G.Dispose();
GC.Collect();
}
}
}
}

Answer 2

网上有类似的 你看看

Answer 3

要么让图片跑的快一点，要么换的wpf

Answer 4

使用双缓存绘图

Answer 5

用WinDows API 能实现你这个