showimage.srf

来自「Vc.Net入门与提高源码」· SRF 代码 · 共 50 行

SRF

50 行

{{ handler ShowImage.dll/Default }}
<html>
	<!-- (c) 2000 Microsoft Corporation -->
	<head>
		<title>{{Title}}</title>
		<meta http-equiv="content-type" content="text/html; charset=iso8859-1">
		<link rel="stylesheet" href="normal.css" type="text/css">
	</head>

	<body>
		<h1>{{Title}}</h1>
		
		<h2>These files were sent to the server:</h2>
		{{TableHeader}}
		{{ShowFiles}}
		{{TableFooter}}

		{{ShowImage}}

		<h3>Instructions</h3>
		<p>
		Use <a href="form.srf">this form</a> to send some image files to this page.
		The server will attempt to convert the files to PNG format and add the image data
		to a database. The response will indicate which files were received by the server,
		which files were images, which could be converted to PNG format, and which of those 
		could be added to the database. Any images added to the database will be displayed
		as part of the page.
		</p>
		
		<h3>How It Works</h3>
		<p>
		The server loops through the files sent to the server and loads each of them into a CImage object.
		If the file could be loaded successfully, the server generates a temporary file name and tries
		to save the image to that file name in PNG format. If that is successful, the server loads the file
		into an object that exposes the data via the IWriteStream interface and hooks that up to an OLE DB
		accessor. The server then calls a stored procedure using that accessor to add the image to the database
		along with information such as its width, height, and bits per pixel. Each image added to the database
		causes an IMG element to be added to the response.
		</p>
		
		<p>
		The SRC attribute of the IMG is a URL to this page.
		The presence of a query string indicates that the server should send back image data retrieved
		from the database rather than an HTML page. In this example, the query string just contains the ID of the
		database record holding the image. This ID is used as a parameter to a stored procedure that returns the
		image data which is then written to the client.
		</p>

	</body>
</html>

showimage.srf - 源码说明

本页面展示了「Vc.Net入门与提高源码」中的 showimage.srf 源码文件，采用 SRF 编程语言编写，共 50 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。

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