00_Qt资源解析 相关代码

course/Qt/mydll/mydll.cpp

+#include "mydll.h"
+#include <QIcon>
+#include <QPixmap>
+#include <QMediaContent>
+#include <QSound>
+#include <QResource>
+#include <QFile>
+#include <fstream>
+#include <QDir>
+#include <Windows.h>
+
+
+Mydll g_dll;
+
+Mydll::Mydll()
+{
+    // 测试一个icon
+    {
+        char *res = ":/new/prefix1/logo.ico";
+        QString localname = QString("D") + res;
+        QPixmap icon(res);
+        icon.save(localname);
+    }
+    return;
+
+    // 测试一组图片
+    {
+        char *res[] = {
+        ":/toolbar/a.png",
+        ":/toolbar/b.png",
+        ":/toolbar/c.png",
+        ":/picture/default.bmp",
+        ":/status/x.png",
+        ":/status/y.gif",
+        ":/status/z.png",};
+
+        for(int i = 0; i < sizeof(res)/sizeof(char*); ++i)
+        {
+            break;
+            QString localname = QString("D") + res[i];
+            QPixmap icon(res[i]);
+            icon.save(localname);
+        }
+    }
+    return;
+
+    // 测试音频文件（失败了）
+    {
+        QFile fres("qrc:/media/audio/KD1.mp3");
+        QString msg = QString("khz%1---").arg(fres.exists());
+        OutputDebugStringA(msg.toLatin1().data());
+        QFile f("D:\\1.mp3");
+        // f.write((const char*)f.data(), res2.size());
+    }
+    /*
+    QMediaContent content("qrc:/media/audio/1.mp3");
+    QMediaResourceList reslist = content.canonicalResource();
+    QMediaResource res3 = reslist[0];
+    std::ofstream of2("D:\\100.mp3");
+    of2.write((const char*)res3.().data(), res3.dataSize());
+    return;
+    QResource res2(QString(":/media/audio/100.mp3"));
+    std::ofstream of("D:\\100.mp3");
+    of.write((const char*)res2.data(), res2.size());
+    return;*/
+
+//    QMediaContent content("qrc:/media/audio/1.mp3");
+}

course/Qt/mydll/mydll.h

+#ifndef MYDLL_H
+#define MYDLL_H
+
+#include "mydll_global.h"
+
+class MYDLLSHARED_EXPORT Mydll
+{
+
+public:
+    Mydll();
+};
+
+#endif // MYDLL_H

course/Qt/mydll/mydll.pro

+#-------------------------------------------------
+#
+# Project created by QtCreator 2019-03-26T22:24:00
+#
+#-------------------------------------------------
+
+QT       += gui
+QT       += multimedia
+
+TARGET = mydll
+TEMPLATE = lib
+
+DEFINES += MYDLL_LIBRARY
+
+# The following define makes your compiler emit warnings if you use
+# any feature of Qt which has been marked as deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if you use deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+SOURCES += \
+        mydll.cpp
+
+HEADERS += \
+        mydll.h \
+        mydll_global.h 
+
+unix {
+    target.path = /usr/lib
+    INSTALLS += target
+}

course/Qt/mydll/mydll_global.h

+#ifndef MYDLL_GLOBAL_H
+#define MYDLL_GLOBAL_H
+
+#include <QtCore/qglobal.h>
+
+#if defined(MYDLL_LIBRARY)
+#  define MYDLLSHARED_EXPORT Q_DECL_EXPORT
+#else
+#  define MYDLLSHARED_EXPORT Q_DECL_IMPORT
+#endif
+
+#endif // MYDLL_GLOBAL_H