我不明白,我在qt5 cmake指南之后做了一个小例子。这是一个很小的例子。
cmake_minimum_required(VERSION 2.8.11)
project(basic_qt_gui)
set(CMAKE_PREFIX_PATH "/opt/qt5_5_0/5.5/gcc_64")
# Find includes in corresponding build directories
set(CMAKE_INCLUDE_CURRENT_DIR ON)
# Instruct CMake to run moc automatically when needed.
我正在使用Cmake在OSX10.9上构建一个QT项目。
自小牛以来,OpenGL头的位置似乎发生了变化。文件夹/System/Library/Frameworks/OpenGL.framework/Headers现在不见了,cmake说
CMake Error at /Applications/Qt/5.1.1/clang_64/lib/cmake/Qt5Gui/Qt5GuiConfigExtras.cmake:8 (message):
Failed to find "gl.h" in
"/System/Library/Frameworks/OpenGL.fr
我已经安装了Qt 5.1.4,但是当我“安装”时,它会显示
Package Qt5Gui was not found in the pkg-config search path.
Perhaps you should add the directory containing `Qt5Gui.pc'
to the PKG_CONFIG_PATH environment variable
No package 'Qt5Gui' found
Package Qt5Widgets was not found in the pkg-config search path.
Perh
我有一个简单的QT对象。当我执行下面的代码时,控件被转移到QT对象,但我想让QT部分像线程一样工作。
int main(int argc, char *args[])
{
gui *GUI;
//// before call
QApplication app(argc,args);
GUI = new gui();
GUI->show();
////i want to be able to do stuff here in parallel with the QT code.
// If I spawn a thead here or
我一直在努力用matplotlib.pyplot来获取情节。很明显,问题是
temp.py:58: UserWarning: Matplotlib is currently using agg, which is a non-GUI backend, so cannot show the figure.
plt.show()
我意识到有多个后端需要切换,它的片段帮助我列出了所有不活动的GUI后端。
import matplotlib
gui_env = [i for i in matplotlib.rcsetup.interactive_bk]
non_gui_backends = mat
我正在从源代码中安装ROS,并得到一个关于PyQt5的错误。
[ 88%] Running SIP generator for qt_gui_cpp_sip Python bindings...
sip: Deprecation warning: qt_gui_cpp.sip:1: %Module version number should be specified using the 'version' argument
sip: Unable to find file "QtCore/QtCoremod.sip"
Traceback (most recen
我有一个Qt部署的问题: 在windeployqt App.exe之后,它返回 Adding Qt5Svg for qsvgicond.dll
Direct dependencies: Qt5Core Qt5Gui Qt5SerialPort Qt5Widgets
All dependencies : Qt5Core Qt5Gui Qt5SerialPort Qt5Widgets
To be deployed : Qt5Core Qt5Gui Qt5SerialPort Qt5Svg Qt5Widgets
Warning: Cannot find Visual Studio in
我试图修复我的应用程序中的内存泄漏,但大多数内存泄漏都是由QCreator生成的ui代码造成的。它们真的是内存泄漏吗?例如,检测到像这样设置后缀。 spinBox_trainingPeriod->setSuffix(QString::fromUtf8(" sec.")); 结果: 16 bytes in 1 blocks are lost in loss record 8949 of 8951 (#248981)
in calloc in
1: calloc in
2: public: static class QString QInputMethod:
我有一个函数来更新一些GUI内容:
void SavedConnections::renderList()
{
// Do GUI stuff! Must run in Qt thread!!!
...
}
我需要确保这个函数不会被其他线程调用。我计划将其推迟到事件循环中,并发出警告:
void SavedConnections::renderList()
{
if(!this_thread_is_Qt_GUI_thread()) {
qDebug()<< "Warning: GUI operation attempted from non GUI
我正在linux中用Qt编写一个简短的应用程序。我想用可执行文件在另一台计算机上运行它。我获取了可执行文件,并在我的另一台计算机上运行它,得到了以下错误:
./BGE_GUI: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: version `Qt_5.7' not found (required by ./BGE_GUI)
./BGE_GUI: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: version `Qt_5' not found (required by ./BGE_GUI)
./
我正在尝试用Ruby编写一个脚本,它可以交互地为程序生成一些输入数据。其思想是当QtRuby存在时使用它,否则使用console。我想要做的是
begin
require "Qt4"
rescue LoadError => load_err
puts "Qt not found, using console"
end
class ConsoleDefine
# console code
end
class QtDefine < Qt::Widget
# GUI code
end
但是当Qt4不存在时,解释器拒绝了我的代码。有没有类
我在发布模式下构建了我的Qt项目,并拥有.exe文件。我正在使用Qt 5.7 32-bit for Desktop (MSVC 2015)命令并运行C:\Qt\5.7\msvc2015\bin\windeployqt.exe my_app.exe
但是,在运行它时,windeployqt并没有找到所有的依赖项。我得到了这个输出。
Adding Qt5Svg for qsvgicon.dll
Direct dependencies: Qt5Core Qt5Gui Qt5Widgets
All dependencies : Qt5Core Qt5Gui Qt5Widgets
To be dep
我目前正在编写一个Qt GUI来远程控制一个由ROS控制的机器人。在catkin_ws中使用catkin_make时,我得到以下错误: CMake Error at /opt/ros/kinetic/share/catkin/cmake/catkinConfig.cmake:83 (find_package):
Could not find a package configuration file provided by "Qt5" with any of
the following names:
Qt5Config.cmake
qt5-config