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SamsonWangV2EX member #328596, joined on 2018-07-12 10:31:03 +08:00Today's activity rank 16397 |
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Mar 26, 2025 Replied to a topic by Bssn › Qt › Qt5 托盘菜单右击时的异常 |
QMenu 的 parent 是主面板，所以会随着主面板显示出来
Mar 26, 2025 Replied to a topic by Bssn › Qt › Qt5 托盘菜单右击时的异常 |
`case QSystemTrayIcon::Context:`的时候啥都不用做，Qt 会自己把 context menu 显示出来
Apr 29, 2020 Replied to a topic by KinneyZhang › 分享发现 › 静态博客可以做短链接吗，实现原理是什么？ |
V 站 emacs 用户不多，见到一个真是不容易啊
Mar 22, 2020 Replied to a topic by NGPONG › 程序员 › cpp 中通过 new 关键字来构建一个对象的数组，不能在构建的过程中就指定需要调用的构造函数吗？ |
```
#include <iostream>
class Person {
public:
Person(const char* name)
: m_name(name) {
std::cout << "Person constructor" << std::endl;
}
~Person() {
std::cout << "Person destructor" << std::endl;
}
const char* GetName() const {
return m_name;
}
private:
const char *m_name;
};
int main(int argc, char *argv[]) {
Person *pers = new Person[3]{"name1","name2","name3"};
for (int i = 0; i < 3; ++i) {
std::cout << pers[i].GetName() << std::endl;
}
delete[] pers;
pers = nullptr;
return 0;
}
```
gcc 4.8.5 编译命令
```
g++ -std=c++11 test.cpp
```
#include <iostream>
class Person {
public:
Person(const char* name)
: m_name(name) {
std::cout << "Person constructor" << std::endl;
}
~Person() {
std::cout << "Person destructor" << std::endl;
}
const char* GetName() const {
return m_name;
}
private:
const char *m_name;
};
int main(int argc, char *argv[]) {
Person *pers = new Person[3]{"name1","name2","name3"};
for (int i = 0; i < 3; ++i) {
std::cout << pers[i].GetName() << std::endl;
}
delete[] pers;
pers = nullptr;
return 0;
}
```
gcc 4.8.5 编译命令
```
g++ -std=c++11 test.cpp
```
Jul 4, 2019 Replied to a topic by rj2 › Python › 请教 pyqt5 获取 exe 中的图标 |
fromWinHBITMAP 在 Qt5 换名字了，这个函数还是有的，放在 WinExtras 里了。
----------------------------------
https://doc.qt.io/qt-5/qtwinextras-iconextractor-main-cpp.html
官方文档里有例子，不过是 C++写的，可以参考下。
----------------------------------
https://doc.qt.io/qt-5/qtwinextras-iconextractor-main-cpp.html
官方文档里有例子，不过是 C++写的，可以参考下。
Jul 3, 2019 Replied to a topic by yuptyy › 职场话题 › offer 比较, 29 岁了, 该怎么打算 |
这个 2、3 点下班，是凌晨了么？感觉这样熬下去身体受不了啊。
Jun 18, 2019 Replied to a topic by lyver › 推广 › 哦~618 是么......干脆来个好物分享，顺便送几波礼品吧 |
试试手气
Jun 4, 2019 Replied to a topic by yongzhong › 程序员 › 如果觉得自己选错了人生会怎么样 |
工作以后慢慢认识到大部分人都是普通人，曾经也有很多梦想，随着时间的推移也慢慢放下了，随遇而安吧。
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