qt添加opengl库文件时候遇到的问题

Question

*.pro文件下的代码

QT       += core gui
QT += opengl

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++11

# The following define makes your compiler emit warnings if you use
# any Qt feature that has been marked deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS
LIBS += -LD:/Qt/Qt5.12.6/5.12.6/mingw73_32/lib -libfreeglut -opengl32
# You can also make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
    main.cpp \
    mainwindow.cpp

HEADERS += \
    Bez.h \
    OpenGLWidget.h \
    mainwindow.h

FORMS += \
    mainwindow.ui

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

使用的库是freeglut,必要的静态库连接文件已加入

Answer 1

QtOpenGL里面没有glut拓展库，需要自己下载添加。如果用的是QtCreator，打开.pro文件，右键->添加库
pro里有 QT += opengl 。
如果还不行可能就是一些环境变量的问题了。

Answer 2

LIBS += -LD:/Qt/Qt5.12.6/5.12.6/mingw73_32/lib -lfreeglut -lopengl32

Answer 3

你这个lib配置的不对，你现在是：
LIBS += -LD:/Qt/Qt5.12.6/5.12.6/mingw73_32/lib -libfreeglut -opengl32
改成：
LIBS += -LD:/Qt/Qt5.12.6/5.12.6/mingw73_32/lib -llibfreeglut -lopengl32
你最好考过去。

Answer 4

lib配置有问题吧。以前我也配置过。你直接使用
LIBS += D:/Qt/Qt5.12.6/5.12.6/mingw73_32/lib/libfreeglut.a

Answer 5

-libfreeglut
改为
-lfreeglut