教你如何使用ASP Image

這篇文章跟大家主要介紹到的是關(guān)于ASP Image 使用范例，希望能對大家有用。

使用ASPImage組件僅需以下步驟：
  
  建一個對象
  設(shè)置若干屬性
  調(diào)用SaveImage方法
  以下代碼舉例說明如何在vbscript中使用ASPImage組件，在這個例子中我們要建立一個漸進(jìn)填充的字樣為 "welcome to"的文字圖片：
  Set Image = Server.CreateObject("AspImage.Image")
  
  rem Set various font parameters
  Image.FontColor = vbBlack
  Image.Italic = True
  Image.Bold = True
  Image.FontName = "Arial"
  Image.FontSize = 12
  Image.PadSize = 10
  
  rem Calculate how big our text info is and set the image to this size
  remThis has to be done since we want to fill the area with a gradient
  strMessage = "Welcome to"
  Image.MaxX = Image.TextWidth (strMessage)
  Image.MaxY = Image.TextHeight (strMessage)
  
  rem Create a one way gradient
  Image.GradientOneWay vbRed, vbWhite, 0
  
  rem Print our string to the image
  Image.TextOut strMessage, Image.X, Image.Y, false
  
  rem Set the filename and save
  remNOTE: You should gen the filename dynamically for multiuser usage
  Image.FileName = "d:inetpubwwwrootimagesmsg1.jpg"
  if Image.SaveImage then
  rem The image was saved so write the <img src> tag out for the browser to pick up
  Response.Write "<img src="http://www.ddvip.net/web/ASP/searches/"/images/msg1.jpg""><br>"
  else
  rem Something happened and we couldn't save the image so just use an HTML header
  remWe need to debug the script and find out what went wrong
  Response.Write "<h2>Welcome to</h2>
  end if 

  通過使用SaveImage方法我們可以得知圖片是否已經(jīng)正確保存了。一般導(dǎo)致圖片不能正確保存的原因是圖片的保存路徑不合法或者對該路徑?jīng)]有寫的權(quán)限。
  
  GIF Animations
  圖片能被加載或進(jìn)行處理，并且可以通過調(diào)用AddImage方法將這些修改保存到一個活動順序的動畫中。在soianim.asp中有個簡單的GIF動畫例子，這個文件已打包到ASPImage的ZIP文件中。