解决error LNK2001: unresolved external symbol
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一下内容是从该网址转过来的哦,希望作者不要介意哦http://apps.hi.baidu.com/share/detail/22170795
http://www.opencv.org.cn/index.php/VC6%E4%B8%8B%E5%AE%89%E8%A3%85%E4%B8%8E%E9%85%8D%E7%BD%AEOpenCV1.0
1) vc网络编程中遇到一个编译问题,原来是少了WSOCK32.LIB。
在 project-->settings-->Link-->Object/Library modules 中加入库WSOCK32.LIB即可。
在VC中进行WINSOCK的API编程开发的时候,需要在项目中使用下面三个文件,否则会出现编译错误。
1.WINSOCK.H: 这是WINSOCK API的头文件,需要包含在项目中。
2.WSOCK32.LIB: WINSOCK API连接库文件。在使用中,一定要把它作为项目的非缺省的连接库包含到项目文件中去。
3.WINSOCK.DLL: WINSOCK的动态连接库,位于WINDOWS的安装目录下。
--------------------Configuration: Example1 - Win32 Debug--------------------
Linking...
error LNK2001: unresolved external symbol _connect@12
error LNK2001: unresolved external symbol _htons@4
error LNK2001: unresolved external symbol _inet_addr@4
error LNK2001: unresolved external symbol _socket@12
error LNK2001: unresolved external symbol _closesocket@4
error LNK2001: unresolved external symbol _send@16
error LNK2001: unresolved external symbol _recv@16
error LNK2001: unresolved external symbol _WSAAsyncSelect@16
error LNK2001: unresolved external symbol _accept@12
error LNK2001: unresolved external symbol _listen@8
error LNK2001: unresolved external symbol _bind@12
(2) vc数据库SQL编程中遇到一个问题,原来是少了odbc32.lib。
在 project-->settings-->Link-->Object/Library modules 中加入库odbc32.lib 即可。
mfc程序调用了odbc api,连接时出错:
error LNK2001: unresolved external symbol _SQLConnect@28
error LNK2001: unresolved external symbol _SQLFetch@4
error LNK2001: unresolved external symbol _SQLBindCol@24
error LNK2001: unresolved external symbol _SQLFreeHandle@8
error LNK2001: unresolved external symbol _SQLExecDirect@12
error LNK2001: unresolved external symbol _SQLAllocHandle@12
error LNK2001: unresolved external symbol _SQLSetEnvAttr@16
error LNK2001: unresolved external symbol _SQLDisconnect@4
(3) vc OpenCV图像处理编程中遇到一个问题,原来是少了cv.lib cvaux.lib cxcore.lib highgui.lib。
在 project-->settings-->Link-->Object/Library modules 中加入库cv.lib cvaux.lib cxcore.lib highgui.lib 即可。
error LNK2001: unresolved external symbol _cvReleaseImage
error LNK2001: unresolved external symbol _cvWaitKey
error LNK2001: unresolved external symbol _cvDrawContours
error LNK2001: unresolved external symbol _cvReleaseMemStorage
error LNK2001: unresolved external symbol _cvDestroyWindow
error LNK2001: unresolved external symbol _cvFindContours
error LNK2001: unresolved external symbol _cvCvtColor
error LNK2001: unresolved external symbol _cvCreateImage
error LNK2001: unresolved external symbol _cvGetSize
error LNK2001: unresolved external symbol _cvShowImage
error LNK2001: unresolved external symbol _cvLoadImage
error LNK2001: unresolved external symbol _cvNamedWindow
error LNK2001: unresolved external symbol _cvCreateMemStorage
(4) vc OpenGL三维编程中遇到一个问题,原来是少了OpenGL32.lib GLu32.lib GLaux.lib。
在 project-->settings-->Link-->Object/Library modules 中加入库OpenGL32.lib GLu32.lib GLaux.lib 即可。
error LNK2001: unresolved external symbol _gluPerspective@32
error LNK2001: unresolved external symbol _gluLookAt@72
error LNK2001: unresolved external symbol __imp__glLoadIdentity@0
error LNK2001: unresolved external symbol __imp__glMatrixMode@4
error LNK2001: unresolved external symbol __imp__glViewport@16
error LNK2001: unresolved external symbol __imp__glHint@8
error LNK2001: unresolved external symbol __imp__glDepthFunc@4
error LNK2001: unresolved external symbol __imp__glEnable@4
error LNK2001: unresolved external symbol __imp__glClearDepth@8
error LNK2001: unresolved external symbol __imp__glClearColor@16
error LNK2001: unresolved external symbol __imp__glShadeModel@4
error LNK2001: unresolved external symbol __imp__glEnd@0
error LNK2001: unresolved external symbol __imp__glVertex3f@12
error LNK2001: unresolved external symbol __imp__glBegin@4
error LNK2001: unresolved external symbol __imp__glTranslatef@12
error LNK2001: unresolved external symbol __imp__glClear@4
error LNK2001: unresolved external symbol __imp__wglDeleteContext@4
error LNK2001: unresolved external symbol __imp__wglMakeCurrent@8
error LNK2001: unresolved external symbol __imp__wglCreateContext@4
(5) vc VFW视频采集编程中遇到一个问题,原来是少了VFW32.Lib
在 project-->settings-->Link-->Object/Library modules 中加入库VFW32.Lib 即可。
error LNK2001: unresolved external symbol _capCreateCaptureWindowA@32
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