Axis APPINT Manual do Utilizador descarregar pdf (Página 5)

Your AXIS 700 will now respond by sending you a 3/ response and image

data.

Scanning Using MFC

Microsoft Foundation Classes (MFC) offers good support for Internet connections,

especially when it comes to HTTP and FTP. As described above, scanning is performed by

requesting a 4378using HTTP. If the operation is successful, the image is returned via a

redirect response. The steps below describe how a scanning is performed using MFC. If you

need more information about the classes described, see the MFC documentation. The

following code is not checked for errors.

1. Create a CInternetSession object:

CInternetSession aSession("ScanSDK");

The parameter is a string identifying the application. An application needs only

one instance of this class.

2. Using this object you can now retrieve an HTTP connection:

CHttpConnection* anHttpConnection =

aSession.GetHttpConnection("somescanserver",

(INTERNET_PORT) 80,

NULL,

NULL);

3. Using this connection, you can now open a request. By default, redirect responses

are handled automatically:

CHttpFile* anHttpFile =

anHttpConnection->OpenRequest(0,

"/user/scan/scan.shtml");

The first parameter defines that a POST request shall be opened, the second is the

request target.

4. Create a query string containing the parameters you want to send:

CString aQueryString =

"\n\npage=scan&profileName=Color+low&scanNow=";

5. Add an HTTP header which informs the HTTP server that the request contains

encoded data:

anHttpFile->AddRequestHeaders(

"Content-type: application/x-www-form-urlencoded");

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Axis APPINT Manual do Utilizador Página 5