Qt 4.8
qlibrary.h
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41 
42 #ifndef QLIBRARY_H
43 #define QLIBRARY_H
44 
45 #include <QtCore/qobject.h>
46 
48 
50 
51 QT_MODULE(Core)
52 
53 #if defined(QT_NO_LIBRARY) && defined(Q_OS_WIN)
54 #undef QT_NO_LIBRARY
55 #pragma message("QT_NO_LIBRARY is not supported on Windows")
56 #endif
57 
58 #ifndef QT_NO_LIBRARY
59 
60 class QLibraryPrivate;
61 
63 {
64  Q_OBJECT
66  LoadHints loadHints;
67  Q_FLAGS(LoadHint LoadHints)
68 public:
69  enum LoadHint {
70  ResolveAllSymbolsHint = 0x01,
71  ExportExternalSymbolsHint = 0x02,
72  LoadArchiveMemberHint = 0x04,
73  ImprovedSearchHeuristics = 0x08
74  };
75  Q_DECLARE_FLAGS(LoadHints, LoadHint)
76 
77  explicit QLibrary(QObject *parent = 0);
78  explicit QLibrary(const QString& fileName, QObject *parent = 0);
79  explicit QLibrary(const QString& fileName, int verNum, QObject *parent = 0);
80  explicit QLibrary(const QString& fileName, const QString &version, QObject *parent = 0);
81  ~QLibrary();
82 
83  void *resolve(const char *symbol);
84  static void *resolve(const QString &fileName, const char *symbol);
85  static void *resolve(const QString &fileName, int verNum, const char *symbol);
86  static void *resolve(const QString &fileName, const QString &version, const char *symbol);
87 
88  bool load();
89  bool unload();
90  bool isLoaded() const;
91 
92  static bool isLibrary(const QString &fileName);
93 
94  void setFileName(const QString &fileName);
95  QString fileName() const;
96 
97  void setFileNameAndVersion(const QString &fileName, int verNum);
98  void setFileNameAndVersion(const QString &fileName, const QString &version);
99  QString errorString() const;
100 
101  void setLoadHints(LoadHints hints);
102  LoadHints loadHints() const;
103 #ifdef QT3_SUPPORT
104  inline QT3_SUPPORT QString library() const { return fileName(); }
105  inline QT3_SUPPORT void setAutoUnload( bool ) {}
106 #endif
107 private:
109  bool did_load;
111 };
112 
113 Q_DECLARE_OPERATORS_FOR_FLAGS(QLibrary::LoadHints)
114 
115 #endif //QT_NO_LIBRARY
116 
118 
120 
121 #endif //QLIBRARY_H
QString fileName
the file name of the library
Definition: qlibrary.h:65
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
#define QT_MODULE(x)
Definition: qglobal.h:2783
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
#define Q_DECLARE_FLAGS(Flags, Enum)
The Q_DECLARE_FLAGS() macro expands to.
Definition: qglobal.h:2348
#define Q_DISABLE_COPY(Class)
Disables the use of copy constructors and assignment operators for the given Class.
Definition: qglobal.h:2523
LoadHint
This enum describes the possible hints that can be used to change the way libraries are handled when ...
Definition: qlibrary.h:69
The QString class provides a Unicode character string.
Definition: qstring.h:83
The QObject class is the base class of all Qt objects.
Definition: qobject.h:111
Q_GUI_EXPORT QString errorString(EGLint code=eglGetError())
Definition: qegl.cpp:743
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
#define Q_DECLARE_OPERATORS_FOR_FLAGS(Flags)
The Q_DECLARE_OPERATORS_FOR_FLAGS() macro declares global operator|() functions for Flags...
Definition: qglobal.h:2355
#define Q_OBJECT
Definition: qobjectdefs.h:157
QLibraryPrivate * d
Definition: qlibrary.h:108
#define Q_CORE_EXPORT
Definition: qglobal.h:1449
#define load(x)
#define Q_FLAGS(x)
Definition: qobjectdefs.h:85
bool did_load
Definition: qlibrary.h:109
#define QT_END_HEADER
Definition: qglobal.h:137
static QString fileName(const QString &fileUrl)
LoadHints loadHints
Give the load() function some hints on how it should behave.
Definition: qlibrary.h:66
The QLibrary class loads shared libraries at runtime.
Definition: qlibrary.h:62