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<!DOCTYPE group PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<group>
<p>These instructions show how to setup a basic <b>VLFeat</b>
project with Visual C++ Express 2008 on Windows XP (32 bit).
Instructions for other versions of Visual Studio should be
similar.</p>
<p>First, we create a new project called <code>vlfeat-client</code>.
Open Visual C++ Express 2008 and select <b>File > New > Project</b>
and choose <b>General > Empty Project</b>. Give your project a
name and location (here <code>vlfeat-client</code>) and click OK.</p>
<img alt="New Project" src="%pathto:root;images/using-vs-new-project.png"/>
<img alt="Empty Project" src="%pathto:root;images/using-vs-empty-project.png"/>
<p>Next, we have to modify the project properties to include the
<b>VLFeat</b> library and include directories. Right click on the
project and select properties.</p>
<img alt="Properties" src="%pathto:root;images/using-vs-project-properties.png"/>
<p>We want these settings to apply to both Debug and Release builds, so
switch to all configurations.</p>
<img alt="All Configurations" src="%pathto:root;images/using-vs-all-configurations.png"/>
<p>Add an additional include path which points to the root of the
VLFeat folder:</p>
<img alt="Additional Includes" src="%pathto:root;images/using-vs-additional-include.png"/>
<p>Add an additional library include path pointing to the <code>bin/w32</code>
folder in the distribution, and add <code>vl.dll</code> as a
dependency:</p>
<img alt="Additional LIBDIR" src="%pathto:root;images/using-vs-additional-libdir.png"/>
<img alt="Additional Dependencies" src="%pathto:root;images/using-vs-additional-deps.png"/>
<p>This will allow us to compile, but we will not be able to run,
getting because <code>vl.dll</code> will not be found:</p>
<img alt="vl.dll was not found" src="%pathto:root;images/using-vs-nodll.png"/>
<p>To remedy this, we add a post-build step which copies vl.dll to
the debug or release folder. Since this only needs to be done once
for each project, we could instead copy the file manually.</p>
<img alt="Post-build step" src="%pathto:root;images/using-vs-post-step.png"/>
<p>Now that we have created our project, add a new .cpp file (right
click on Source Files and choose <b>Add > New Item</b>) with
this code:</p>
<pre>
extern "C" {
#include <vl/generic.h>
}
int main (int argc, const char * argv[]) {
VL_PRINT ("Hello world!\n") ;
return 0;
}
</pre>
<p>Build and run the project (Ctrl+F5). It should run correctly, and
you should see this:</p>
<img alt="Visual C++ OK" src="%pathto:root;images/using-vs-ok.png"/>
</group>
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