# qt相关

**Repository Path**: mathematicsX/qt-correlation

## Basic Information

- **Project Name**: qt相关
- **Description**: 里面的关于qt多线程的写得很不错，路径是/tech/QtThread
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 3
- **Forks**: 1
- **Created**: 2020-09-06
- **Last Updated**: 2022-03-16

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# Qt

## 基本

[多线程下，信号槽对引用参数的处理](https://github.com/czyt1988/czyBlog/tree/master/tech/threadSignalSlot)

## 多线程

[多线总结](https://github.com/czyt1988/czyBlog/tree/master/tech/QtThread)
5.14.2编译的一些问题：
1 C:\Users\lenovo\Downloads\qt-correlation\tech\QtThread\src\ThreadObject.cpp:104: error: cast from 'Qt::HANDLE {aka void*}' to 'int' loses precision [-fpermissive]
     emit message(QString("%1->%2,thread id:%3").arg(__FUNCTION__).arg(__FILE__).arg((int)QThread::currentThreadId()));
                                                                                                                   ^

currentThreadId返回的是Qt::HANDLE，转成int会损失精度，改成long long 即可
改成 emit message(QString("%1->%2,thread id:%3").arg(__FUNCTION__).arg(__FILE__).arg((long long )QThread::currentThreadId()));


sleep未定义的解决：加QThread头文件，改为用QThread::sleep(1);

## 数据绘图相关

[Qt5.7以下QtChart配置](https://github.com/czyt1988/czyBlog/tree/master/tech/QtChartInstall)

[Qt2D绘图控件的对比](https://github.com/czyt1988/czyBlog/tree/master/tech/chartCmp)

## 界面

[QtableView实现斜线表头](https://github.com/czyt1988/czyBlog/tree/master/tech/connerButton)

[QRoundBar-圆形进度条的修正](https://github.com/czyt1988/czyBlog/tree/master/tech/QRoundBarFix)

[解锁Qt属性表控件-QtPropertyBrowser](https://github.com/czyt1988/czyBlog/tree/master/tech/QtPropertyBrowser)

## IO相关

[QDataStream writeBytes与writeRawData区别](https://github.com/czyt1988/czyBlog/tree/master/tech/QDataStreamtTest)

[Windows下快速读取Excel](https://github.com/czyt1988/czyBlog/tree/master/tech/fastReadExcel)

## 奇怪的错误记录

[QScopedPointer forward_declared编译错误](https://github.com/czyt1988/czyBlog/tree/master/tech/QScopedPointer_forward_declared)

# C++

[数据溢出测试](https://github.com/czyt1988/czyBlog/tree/master/tech/OverflowTest)

[C++11的数据类型检查](https://github.com/czyt1988/czyBlog/tree/master/tech/typeCheck)

[lambda陷阱](https://github.com/czyt1988/czyBlog/tree/master/tech/lambda_ref_trap)

# 算法

## 号处理

[FFT之后的那些事情](https://github.com/czyt1988/czyBlog/tree/master/tech/afterUseFFT)