Question

C#中如何制作图片窗体(希望能写出代码)

如上所说任何.

Answer 1

这是不规则窗体，就是你背景图片是什么样子，你FORM就是什么样子
frmAbout 为一个FROM
aboutwin = new frmAbout();
aboutwin.CreateControlRegionComplete+=new EventHandler(addaboutmenuitem);
aboutwin.InitializeRegion(new Bitmap(Application.StartupPath + "\\about.bmp"));

下面就是处理类
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
using System.Threading;
namespace net.emice.Host
{
/// <summary>
///
/// Summary description for BitmapRegion.
/// </summary>
public class BitmapRegionFrom : System.Windows.Forms.Form
{
public EventHandler CreateControlRegionComplete;
private Bitmap mybitmap;
private void CreateControlRegion()
{
// Set our control''s size to be the same as the bitmap
//设置控件大小为位图大小
this.Width = mybitmap.Width;
this.Height = mybitmap.Height;

// No border
//没有边界
this.FormBorderStyle = FormBorderStyle.None;
// Set bitmap as the background image
//将位图设置成窗体背景图片
this.BackgroundImage = mybitmap;
// Calculate the graphics path based on the bitmap supplied
//计算位图中不透明部分的边界
//GraphicsPath graphicsPath = CalculateControlGraphicsPath(bitmap);
//// Apply new region
////应用新的区域
//form.Region = new Region(graphicsPath);
Thread ragiondrawthread = new Thread(new ThreadStart(CalculateControlGraphicsPath));
ragiondrawthread.Start();
}
/// <summary>
/// Calculate the graphics path that representing the figure in the bitmap
/// excluding the transparent color which is the top left pixel.
/// //计算位图中不透明部分的边界
/// </summary>
/// <param name="bitmap">The Bitmap object to calculate our graphics path from</param>
/// <returns>Calculated graphics path</returns>
//private void CalculateControlGraphicsPath( ref System.Windows.Forms.Control control, Bitmap bitmap)
private void CalculateControlGraphicsPath()
{

// Create GraphicsPath for our bitmap calculation
//创建 GraphicsPath
GraphicsPath graphicsPath = new GraphicsPath();
// Use the top left pixel as our transparent color
//使用左上角的一点的颜色作为我们透明色
Color colorTransparent = mybitmap.GetPixel(0, 0);
// This is to store the column value where an opaque pixel is first found.
// This value will determine where we start scanning for trailing opaque pixels.
//第一个找到点的X
int colOpaquePixel = 0;
// Go through all rows (Y axis)
// 偏历所有行（Y方向）
for (int row = 0; row < mybitmap.Height; row++)
{
// Reset value
//重设
colOpaquePixel = 0;
// Go through all columns (X axis)
//偏历所有列（X方向）
for (int col = 0; col < mybitmap.Width; col++)
{
// If this is an opaque pixel, mark it and search for anymore trailing behind
//如果是不需要透明处理的点则标记，然后继续偏历
if (mybitmap.GetPixel(col, row) != colorTransparent)
{
// Opaque pixel found, mark current position
//记录当前
colOpaquePixel = col;
// Create another variable to set the current pixel position
//建立新变量来记录当前点
int colNext = col;
// Starting from current found opaque pixel, search for anymore opaque pixels
// trailing behind, until a transparent pixel is found or minimum width is reached
///从找到的不透明点开始，继续寻找不透明点,一直到找到或则达到图片宽度
for (colNext = colOpaquePixel; colNext < mybitmap.Width; colNext++)
if (mybitmap.GetPixel(colNext, row) == colorTransparent)
break;
// Form a rectangle for line of opaque pixels found and add it to our graphics path
//将不透明点加到graphics path
graphicsPath.AddRectangle(new Rectangle(colOpaquePixel, row, colNext - colOpaquePixel, 1));
// No need to scan the line of opaque pixels just found
col = colNext;
}
}
}
// Return calculated graphics path
this.Region = new Region(graphicsPath);
OnCreateControlRegionComplete();
}
private void OnCreateControlRegionComplete()
{
if (null != CreateControlRegionComplete)
CreateControlRegionComplete(this,new EventArgs());
}
public virtual void InitializeRegion(Bitmap bitmap)
{
mybitmap = bitmap;
CreateControlRegion();
}
}
}

Answer 2

修改窗体的backgroundImage属性啊！