在Windows上使用QT Creator编译OpenGL QT项目时,我遇到了一个错误。
我得到的错误是链接错误。
我已经尝试重新运行qmake,并进行清理和构建,但这并没有解决问题。我还尝试了一些类似于我的stackoverflow问题的其他建议,但都没有解决这个问题。
我将在下面包含链接错误和我的项目代码。
提前感谢您的帮助!
链接错误:
17:38:04: Running steps for project OpenGL2...
17:38:04: Configuration unchanged, skipping qmake step.
17:38:04: Starting: "C:\Qt\Tools\QtCreator\bin\jom.exe"
C:\Qt\Tools\QtCreator\bin\jom.exe -f Makefile.Debug
C:\Qt\5.6\msvc2013_64\bin\uic.exe ..\mainwindow.ui -o ui_mainwindow.h
cl -c -nologo -Zc:wchar_t -FS -Zi -MDd -GR -W3 -w34100 -w34189 -w44996 -EHsc /Fddebug\OpenGL2.pdb -DUNICODE -DWIN32 -DWIN64 -DQT_QML_DEBUG -DQT_OPENGL_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I..\..\OpenGL2 -I. -IC:\Qt\5.6\msvc2013_64\include -IC:\Qt\5.6\msvc2013_64\include\QtOpenGL -IC:\Qt\5.6\msvc2013_64\include\QtWidgets -IC:\Qt\5.6\msvc2013_64\include\QtGui -IC:\Qt\5.6\msvc2013_64\include\QtANGLE -IC:\Qt\5.6\msvc2013_64\include\QtCore -Idebug -I. -IC:\Qt\5.6\msvc2013_64\mkspecs\win32-msvc2013 -Fodebug\ @C:\Users\context\AppData\Local\Temp\main.obj.9848.16.jom
cl -c -nologo -Zc:wchar_t -FS -Zi -MDd -GR -W3 -w34100 -w34189 -w44996 -EHsc /Fddebug\OpenGL2.pdb -DUNICODE -DWIN32 -DWIN64 -DQT_QML_DEBUG -DQT_OPENGL_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I..\..\OpenGL2 -I. -IC:\Qt\5.6\msvc2013_64\include -IC:\Qt\5.6\msvc2013_64\include\QtOpenGL -IC:\Qt\5.6\msvc2013_64\include\QtWidgets -IC:\Qt\5.6\msvc2013_64\include\QtGui -IC:\Qt\5.6\msvc2013_64\include\QtANGLE -IC:\Qt\5.6\msvc2013_64\include\QtCore -Idebug -I. -IC:\Qt\5.6\msvc2013_64\mkspecs\win32-msvc2013 -Fodebug\ @C:\Users\context\AppData\Local\Temp\mainwindow.obj.9848.32.jom
C:\Qt\5.6\msvc2013_64\bin\moc.exe -DUNICODE -DWIN32 -DWIN64 -DQT_QML_DEBUG -DQT_OPENGL_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -D_MSC_VER=1800 -D_WIN32 -D_WIN64 -IC:/Qt/5.6/msvc2013_64/mkspecs/win32-msvc2013 -IC:/Users/context/Documents/OpenGL2 -IC:/Qt/5.6/msvc2013_64/include -IC:/Qt/5.6/msvc2013_64/include/QtOpenGL -IC:/Qt/5.6/msvc2013_64/include/QtWidgets -IC:/Qt/5.6/msvc2013_64/include/QtGui -IC:/Qt/5.6/msvc2013_64/include/QtANGLE -IC:/Qt/5.6/msvc2013_64/include/QtCore -I. ..\mainwindow.h -o debug\moc_mainwindow.cpp
main.cpp
mainwindow.cpp
..\mainwindow.cpp(3) : warning C4100: 'parent' : unreferenced formal parameter
..\mainwindow.cpp(28) : warning C4100: 'h' : unreferenced formal parameter
..\mainwindow.cpp(28) : warning C4100: 'w' : unreferenced formal parameter
..\mainwindow.cpp(52) : warning C4100: 'event' : unreferenced formal parameter
..\mainwindow.cpp(57) : warning C4100: 'event' : unreferenced formal parameter
cl -c -nologo -Zc:wchar_t -FS -Zi -MDd -GR -W3 -w34100 -w34189 -w44996 -EHsc /Fddebug\OpenGL2.pdb -DUNICODE -DWIN32 -DWIN64 -DQT_QML_DEBUG -DQT_OPENGL_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I..\..\OpenGL2 -I. -IC:\Qt\5.6\msvc2013_64\include -IC:\Qt\5.6\msvc2013_64\include\QtOpenGL -IC:\Qt\5.6\msvc2013_64\include\QtWidgets -IC:\Qt\5.6\msvc2013_64\include\QtGui -IC:\Qt\5.6\msvc2013_64\include\QtANGLE -IC:\Qt\5.6\msvc2013_64\include\QtCore -Idebug -I. -IC:\Qt\5.6\msvc2013_64\mkspecs\win32-msvc2013 -Fodebug\ @C:\Users\context\AppData\Local\Temp\moc_mainwindow.obj.9848.718.jom
moc_mainwindow.cpp
link /NOLOGO /DYNAMICBASE /NXCOMPAT /DEBUG /SUBSYSTEM:WINDOWS "/MANIFESTDEPENDENCY:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' publicKeyToken='6595b64144ccf1df' language='*' processorArchitecture='*'" /MANIFEST:embed /OUT:debug\OpenGL2.exe @C:\Users\context\AppData\Local\Temp\OpenGL2.exe.9848.4400.jom
**mainwindow.obj : error LNK2019: unresolved external symbol __imp_glBegin referenced in function "protected: virtual void __cdecl MainWindow::paintGL(void)" (?paintGL@MainWindow@@MEAAXXZ)
mainwindow.obj : error LNK2019: unresolved external symbol __imp_glClear referenced in function "protected: virtual void __cdecl MainWindow::paintGL(void)" (?paintGL@MainWindow@@MEAAXXZ)
mainwindow.obj : error LNK2019: unresolved external symbol __imp_glClearColor referenced in function "protected: virtual void __cdecl MainWindow::paintGL(void)" (?paintGL@MainWindow@@MEAAXXZ)
mainwindow.obj : error LNK2019: unresolved external symbol __imp_glEnd referenced in function "protected: virtual void __cdecl MainWindow::paintGL(void)" (?paintGL@MainWindow@@MEAAXXZ)
mainwindow.obj : error LNK2019: unresolved external symbol __imp_glFlush referenced in function "protected: virtual void __cdecl MainWindow::paintGL(void)" (?paintGL@MainWindow@@MEAAXXZ)
mainwindow.obj : error LNK2019: unresolved external symbol __imp_glVertex2f referenced in function "protected: virtual void __cdecl MainWindow::paintGL(void)" (?paintGL@MainWindow@@MEAAXXZ)
debug\OpenGL2.exe : fatal error LNK1120: 6 unresolved externals
jom: C:\Users\context\Documents\OpenGL2\build\Makefile.Debug [debug\OpenGL2.exe] Error 1120**
jom: C:\Users\context\Documents\OpenGL2\build\Makefile [debug] Error 2
17:38:09: The process "C:\Qt\Tools\QtCreator\bin\jom.exe" exited with code 2.
Error while building/deploying project OpenGL2 (kit: Desktop Qt 5.6.1 MSVC2013 64bit2)
When executing step "Make"
以下是我的代码和配置文件:
OpenGL2.pro
QT += core gui opengl
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = OpenGL2
TEMPLATE = app
SOURCES += main.cpp\
mainwindow.cpp
HEADERS += mainwindow.h
FORMS += mainwindow.ui
mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QOpenGLWindow>
#include <QSurfaceFormat>
#include <QOpenGLFunctions>
#include <QtOpenGL>
#include <GL/glu.h>
class MainWindow : public QOpenGLWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
protected:
virtual void initializeGL();
virtual void resizeGL(int w, int h);
virtual void paintGL();
void paintEvent(QPaintEvent *event);
void resizeEvent(QResizeEvent *event);
private:
QOpenGLContext* context;
QOpenGLFunctions* openGLFunctions;
};
main.cpp
#include "mainwindow.h"
#include <QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.setTitle("OpenGL Hello World!");
w.resize(640, 480);
w.show();
return a.exec();
}
mainwindow.cpp
#include "mainwindow.h"
MainWindow::MainWindow(QWidget *parent)
{
setSurfaceType(QWindow::OpenGLSurface);
QSurfaceFormat format;
format.setProfile(QSurfaceFormat::CompatibilityProfile);
format.setVersion(2, 1); // OpenGL 2.1
setFormat(format);
context = new QOpenGLContext;
context->setFormat(format);
context->create();
context->makeCurrent(this);
openGLFunctions = context->functions();
}
MainWindow::~MainWindow()
{
}
void MainWindow::initializeGL()
{
}
void MainWindow::resizeGL(int w, int h)
{
}
void MainWindow::paintGL()
{
// Initialize clear color (cornflower blue)
glClearColor(0.39f, 0.58f, 0.93f, 1.f);
// Clear color buffer
glClear(GL_COLOR_BUFFER_BIT);
// Hello World
// Render quad
glBegin(GL_QUADS);
glVertex2f(-0.5f, -0.5f);
glVertex2f(0.5f, -0.5f);
glVertex2f(0.5f, 0.5f);
glVertex2f(-0.5f, 0.5f);
glEnd();
glFlush();
}
void MainWindow::paintEvent(QPaintEvent *event)
{
paintGL();
}
void MainWindow::resizeEvent(QResizeEvent *event)
{
}
LIBS += -lOpengl32
(或类似). - peppe