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POVisual Studio 2010 C++ - Unresolved external symbol
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Id
16486934
data
AcceptedAnswerId
16487281
AnswerCount
2
ClosedDate
CommentCount
2
CommunityOwnedDate
CreationDate
2013-05-10T16:36:41.513
FavoriteCount
0
LastActivityDate
2013-05-10T17:47:45.280
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LastEditorUserId
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OwnerUserId
1379286
ParentId
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PostTypeId
1
Score
3
ViewCount
2862
LastEditorDisplayName
text
Body
I am trying to do some USB programming using the library <a href="http://www.signal11.us/oss/hidapi/" rel="nofollow">HID API</a>. Following is my code <pre><code>#include <stdio.h> #include <stdlib.h> #include <wchar.h> #include <hidapi.h> int main(int argc, char* argv[]) { int res; unsigned char buf[65]; #define MAX_STR 255 wchar_t wstr[MAX_STR]; hid_device *handle; int i; // Enumerate and print the HID devices on the system struct hid_device_info *devs, *cur_dev; devs = hid_enumerate(0x0, 0x0); cur_dev = devs; while (cur_dev) { printf("Device Found\n type: %04hx %04hx\n path: %s\n serial_number: %ls", cur_dev->vendor_id, cur_dev->product_id, cur_dev->path, cur_dev->serial_number); printf("\n"); printf(" Manufacturer: %ls\n", cur_dev->manufacturer_string); printf(" Product: %ls\n", cur_dev->product_string); printf("\n"); cur_dev = cur_dev->next; } hid_free_enumeration(devs); } </code></pre> I have added following into the <code>Project properties->Configuration Properties->VC++ Directories->Include Directories</code> <pre><code>C:\Users\yohan\Documents\HIDApi\windows C:\Users\yohan\Documents\HIDApi\hidapi C:\Users\yohan\Documents\HIDApi\libusb </code></pre> When I run my code, I get the following error <pre><code>Error 6 error LNK2019: unresolved external symbol _hid_free_enumeration referenced in function _main c:\Users\yohan\documents\visual studio 2010\Projects\USB_Test\USB_Test\FirstTest.obj USB_Test Error 7 error LNK2019: unresolved external symbol _hid_enumerate referenced in function _main c:\Users\yohan\documents\visual studio 2010\Projects\USB_Test\USB_Test\FirstTest.obj USB_Test Error 8 error LNK1120: 2 unresolved externals c:\users\yohan\documents\visual studio 2010\Projects\USB_Test\Debug\USB_Test.exe USB_Test </code></pre> Why I am getting this error? I am using Visual studio 2010 professional. 
Tags
<c++><visual-studio-2010><usb>
Title
Visual Studio 2010 C++ - Unresolved external symbol
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1. USYohan Weerasinghe
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1. COdid you build the API?
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 POVisual Studio 2010 C++ - Unresolved external symbol
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2. CO@Oscee: I did build what is inside the windows folder. I open the .sln and selected build
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 POVisual Studio 2010 C++ - Unresolved external symbol
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 USYohan Weerasinghe

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