QTextCodec::codeForName
时间: 2024-06-01 19:10:14 浏览: 15
QTextCodec::codeForName is a static function in the Qt framework's QTextCodec class that returns the numerical identifier of a character encoding based on its name. The function takes a QString argument representing the name of the encoding and returns an integer value representing the encoding's identifier. This function is often used in conjunction with the QTextCodec::codecForName function, which returns a QTextCodec object for a given encoding name. Together, these functions allow developers to easily work with different character encodings within their Qt applications.
相关问题
QTextCodec::setCodecForCStrings
QTextCodec::setCodecForCStrings()是Qt框架中的一个静态函数,用于设置在将QString转换为char*类型时使用的编码方式。它的作用是将QString字符串转换为当前系统的本地编码,然后将其赋值给char*类型的变量。
该函数的原型为:
```
void QTextCodec::setCodecForCStrings(QTextCodec *codec)
```
参数codec是一个指向QTextCodec对象的指针,表示要使用的编码方式。如果参数为nullptr,则使用默认编码方式。
该函数通常在Qt应用程序的main()函数中调用,以确保所有char*类型的字符串都能正确地转换为QString类型。
示例代码:
```
#include <QTextCodec>
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
// 设置编码方式为UTF-8
QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8"));
// ...
return app.exec();
}
```
QTextCodec::codecForName
QTextCodec::codecForName is a static function in the Qt framework that returns a pointer to a QTextCodec object that represents a specific character encoding specified by its name. The name can be passed as a QString or a QByteArray. If no codec is found for the given name, the function returns null. QTextCodec objects are used to convert between Unicode text and bytes in different character encodings.