LNK2001 error opengl visual studio 2010

Question

我正在使用Visual Studio 2010。

我收到此错误消息：

Error   9   error LNK2001: unresolved external symbol __imp____glewUseProgram   C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22InitShader.obj  lab22
Error   10  error LNK2001: unresolved external symbol __imp____glewUseProgram   C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22lab22.obj   lab22
Error   11  error LNK2001: unresolved external symbol __imp____glewGetProgramInfoLog    C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22InitShader.obj  lab22
Error   12  error LNK2001: unresolved external symbol __imp____glewGetProgramiv C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22InitShader.obj  lab22
Error   13  error LNK2001: unresolved external symbol __imp____glewLinkProgram  C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22InitShader.obj  lab22
Error   14  error LNK2001: unresolved external symbol __imp____glewAttachShader C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22InitShader.obj  lab22
Error   15  error LNK2001: unresolved external symbol __imp____glewGetShaderInfoLog C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22InitShader.obj  lab22
Error   16  error LNK2001: unresolved external symbol __imp____glewGetShaderiv  C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22InitShader.obj  lab22
Error   17  error LNK2001: unresolved external symbol __imp____glewCompileShader    C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22InitShader.obj  lab22
Error   18  error LNK2001: unresolved external symbol __imp____glewShaderSource C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22InitShader.obj  lab22
Error   19  error LNK2001: unresolved external symbol __imp____glewCreateShader C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22InitShader.obj  lab22
Error   20  error LNK2001: unresolved external symbol __imp____glewCreateProgram    C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22InitShader.obj  lab22
Error   21  error LNK2001: unresolved external symbol __imp____glewVertexAttribPointer  C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22lab22.obj   lab22
Error   22  error LNK2001: unresolved external symbol __imp____glewEnableVertexAttribArray  C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22lab22.obj   lab22
Error   23  error LNK2001: unresolved external symbol __imp____glewGetAttribLocation    C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22lab22.obj   lab22
Error   24  error LNK2001: unresolved external symbol __imp____glewBufferData   C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22lab22.obj   lab22
Error   25  error LNK2001: unresolved external symbol __imp____glewBindBuffer   C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22lab22.obj   lab22
Error   26  error LNK2001: unresolved external symbol __imp____glewGenBuffers   C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22lab22.obj   lab22
Error   27  error LNK2001: unresolved external symbol __imp____glewBindVertexArray  C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22lab22.obj   lab22
Error   28  error LNK2001: unresolved external symbol __imp____glewGenVertexArrays  C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22lab22.obj   lab22
Error   29  error LNK2019: unresolved external symbol __imp__glewInit@0 referenced in function _main    C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22lab22.obj   lab22
Error   30  error LNK2001: unresolved external symbol __imp__glewExperimental   C:UsersLENOVODesktopTugasSmst5Komgraflablab22lab22lab22.obj   lab22
Error   31  error LNK1120: 21 unresolved externals  C:UsersLENOVODesktopTugasSmst5Komgraflablab22Debuglab22.exe   lab22

这是我的程序

#pragma comment(lib, "opengl32.lib")
#pragma comment(lib, "glu32.lib")
#pragma comment(lib, "glut32.lib")
#include "includeAngel.h"
const int NumPoints = 3;
void
init( void )
{
// Specifiy the vertices for a triangle
vec2 vertices[3] = {
    vec2( -0.75, -0.75 ), vec2( 0.0, 0.75 ), vec2( 0.75, -0.75 )
};
// Create a vertex array object
GLuint vao[1];
glGenVertexArrays( 1, vao );
glBindVertexArray( vao[0] );

// Create and initialize a buffer object
GLuint buffer;
glGenBuffers( 1, &buffer );
glBindBuffer( GL_ARRAY_BUFFER, buffer );
glBufferData( GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW );
// Load shaders and use the resulting shader program
GLuint program = InitShader( "vshader21.glsl", "fshader21.glsl" );
glUseProgram( program );
// Initialize the vertex position attribute from the vertex shader
GLuint loc = glGetAttribLocation( program, "vPosition" );
   glEnableVertexAttribArray( loc );
    glVertexAttribPointer( loc, 2, GL_FLOAT, GL_FALSE, 0,
                       BUFFER_OFFSET(0) );
glClearColor( 1.0, 1.0, 1.0, 1.0 ); // white background
}
void 
display( void )
{
glClear( GL_COLOR_BUFFER_BIT );     // clear the window
glDrawArrays( GL_TRIANGLES, 0, NumPoints );    // draw the points
glFlush();
}
void
keyboard( unsigned char key, int x, int y )
{
switch ( key ) {
case 033:
    exit( EXIT_SUCCESS );
    break;
}
}
int 
main( int argc, char **argv )
{
glutInit( &argc, argv );
glutInitDisplayMode( GLUT_RGBA );
glutInitWindowSize( 512, 512 );
glutCreateWindow( "Red Triangle" );
glewExperimental=GL_TRUE; 
glewInit();    
init();
glutDisplayFunc( display );
glutKeyboardFunc( keyboard );
glutMainLoop();
return 0;
}

我想我已经正确安装了 glut、freeglut 和 glew，我已经编辑了我的链接器，但它仍然错误。我将 glut、freeglut 和 glew 文件夹放在我的项目和我的视觉工作室中，但它仍然显示该错误。对于我可以编译的第一个项目，现在我正在使用 Angle.h 并且它无法编译

Answer 1

由于您正在使用预处理器黑客来链接其余库，我想您可能希望这样做：

#pragma comment(lib, "glew32.lib")

通常，您将使用项目设置来设置链接库，但许多教程使用预处理器指令，因为它避免了引导用户完成配置 Visual Studio 项目（每个新版本都不同）。