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#-------------------------------------------------
#
# Project created by QtCreator --T::
#
#-------------------------------------------------
QT -= core
QT -= gui
TARGET = hello.wt
LIBS += -L/usr/local/lib -lwt -lwthttp
CONFIG += console
CONFIG -= app_bundle
TEMPLATE = app
SOURCES += main.cpp
main.cpp
#include <Wt/WApplication>
#include <Wt/WBreak>
#include <Wt/WContainerWidget>
#include <Wt/WLineEdit>
#include <Wt/WPushButton>
#include <Wt/WText>
#include <boost/version.hpp>
using namespace Wt;
/
** A simple hello world application class which demonstrates how to react
* to events, read input, and give feed-back.
*/
class HelloApplication : public WApplication
{
public:
HelloApplication(const WEnvironment& env);
private:
WLineEdit *nameEdit_;
WText *greeting_;
void greet();
};
/
** The env argument contains information about the new session, and
* the initial request. It must be passed to the WApplication
* constructor so it is typically also an argument for your custom
* application constructor.
*/
HelloApplication::HelloApplication(const WEnvironment& env)
: WApplication(env)
{
setTitle("Hello"); // application title
root()->addWidget(new WText("Your name, please ? ")); // show some text
nameEdit_ = new WLineEdit(root()); // allow text input
nameEdit_->setFocus(); // give focus
WPushButton *b = new WPushButton("Greet me.", root()); // create a button
b->setMargin(5, Left); // add 5 pixels margin
root()->addWidget(new WBreak()); // insert a line break
greeting_ = new WText(root()); // empty text
/
** Connect signals with slots
*
* - simple Wt-way
*/
b->clicked().connect(this, &HelloApplication::greet);
/
** - using an arbitrary function object (binding values with boost::bind())
*/
nameEdit_->enterPressed().connect
(boost::bind(&HelloApplication::greet, this));
}
void HelloApplication::greet()
{
/
** Update the text, using text input into the nameEdit_ field.
*/
greeting_->setText("Hello there, " + nameEdit_->text());
}
WApplication *createApplication(const WEnvironment& env)
{
/
** You could read information from the environment to decide whether
* the user has permission to start a new application
*/
return new HelloApplication(env);
}
int main(int argc, char **argv)
{
/
** Your main method may set up some shared resources, but should then
* start the server application (FastCGI or httpd) that starts listening
* for requests, and handles all of the application life cycles.
*
* The last argument to WRun specifies the function that will instantiate
* new application objects. That function is executed when a new user surfs
* to the Wt application, and after the library has negotiated browser
* support. The function should return a newly instantiated application
* object.
*/
return WRun(argc, argv, &createApplication);
}
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Qt Creator 4.8.0 中文乱码 与 Qt 不能Debug问题的解决
在Qt Creator 4.8.0中遇到的中文乱码和调试问题,需要分别针对源代码和界面进行处理。源码对于源代码的源码中文乱码,可以采取以下步骤:
1. 打开编辑菜单,源码gawc指标源码选择“switch Encoding”将文件编码转换为UTF-8,源码确保代码的源码斗法修仙传源码中文字符正确显示。
2. 在工具菜单中,源码进入“选项”->“文本编辑器”->“行为”,源码将默认编码设为UTF-8,源码同时取消BOM(Byte Order Mark)选项,源码以避免编码冲突。源码
对于Qt界面的源码中文显示问题,确保代码源文件编码已经设置为UTF-8,源码平衡车之家源码然后在main()函数中添加适当的源码字符编码处理代码,以确保中文录入时的源码正确显示。
至于Qt Creator的ffmpeg源码分析 书籍调试问题,如果遇到“Unable to create a debugging engine.”的错误,如果使用的是Visual Studio 编译套件,可以尝试以下步骤解决:
1. 找到Visual Studio 的娱乐直播app源码安装路径,进入“应用和功能”。
2. 选择安装的Visual Studio ,点击“修改”选项。
3. 在弹出的窗口中,重新安装Windows SDK和相关工具。
4. 安装完成后,重启Qt Creator,这通常能解决调试器的连接问题。