54 lines
1.8 KiB
HTML
54 lines
1.8 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<link rel="Stylesheet" type="text/css" href=
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"../../default.css" />
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<meta http-equiv="Content-Type" content=
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"text/html; charset=utf-8" />
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<title>Step 1.1: Creating a protected application</title>
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</head>
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<body>
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<h1>Step 1.1: Creating a protected application</h1>
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<p>The first step is to create an application. This would be a simple app without any user interface and with no serious capabilities. Our goal is to pass a serial number to the licensing system and receive its answer..</p>
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<pre class="code">#include <windows.h>
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#include <stdio.h>
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bool is_registered(const char *serial)
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{
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return serial && serial[0] == 'X';
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}
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int main(int argc, char **argv)
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{
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char *serial = "Xserialnumber"; // we set the serial number directly in the code, for simplicity
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if (!is_registered(serial))
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{
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printf("please register!\n");
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return 0;
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}
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printf("We are registered.\n");
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return 0;
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}
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</pre>
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<p>The program uses a very simple way to check the serial number. The <strong>is_registered()</strong> function compares the first symbol of the serial number with 'X' and thinks the number is correct if this they match. For an incorrect serial number, a registration message is displayed, while if a user enter the correct key, "We are registered." is shown instead</p>
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<p>The <a href="step12_code.htm">next step</a> is to add the code to check the serial number using the licensing system of
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VMProtect.</p><br />
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<br />
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<br />
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<br />
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<br />
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<hr noshade="noshade" size="1" />
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<div align="center">
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© 2006-2015 Copyright VMProtect Software
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</div>
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</body>
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</html>
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