Qt5加载、使用外部字体

Qt版本：Qt Creator 4.4.1  Based on Qt 5.9.3 (MSVC 2015, 32 bit)

一、所需头文件：

#include <QCoreApplication>#include <QStringList>#include <QFontFatabase>#include <QFont>

二、加载：

QString dir = QCoreApplication::applicationDirPath();QStringList m_fontList;m_fontList.clear();int lcdFontId = QFontDatabase::addApplicationFont(":/lcd/DS-DIGI.ttf"); // 从source资源文件// int lcdFontId = QFontDatabase::addApplicationFont(dir + "/fonts/DS-DIGI.ttf"); //从外部资源文件if (lcdFontId != -1) // -1为加载失败{m_fontList << QFontDatabase::applicationFontFamilies(lcdFontId);}

三、使用：

if (!m_fontList.isEmpty()){QFont font;font.setFamily(m_fontList.at(0));}