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39
40#ifndef QPLATFORMHEADERHELPER_H
41#define QPLATFORMHEADERHELPER_H
42
43#include <QtCore/QByteArray>
44#include <QtGui/QGuiApplication>
45
46#if 0
47#pragma qt_class(QPlatformHeaderHelper)
48#endif
49
50QT_BEGIN_NAMESPACE
51
52namespace QPlatformHeaderHelper {
53
54template<typename ReturnT, typename FunctionT>
55ReturnT callPlatformFunction(const QByteArray &functionName)
56{
57 FunctionT func = reinterpret_cast<FunctionT>(QGuiApplication::platformFunction(function: functionName));
58 return func ? func() : ReturnT();
59}
60
61template<typename ReturnT, typename FunctionT, typename Arg1>
62ReturnT callPlatformFunction(const QByteArray &functionName, Arg1 a1)
63{
64 FunctionT func = reinterpret_cast<FunctionT>(QGuiApplication::platformFunction(function: functionName));
65 return func ? func(a1) : ReturnT();
66}
67
68template<typename ReturnT, typename FunctionT, typename Arg1, typename Arg2>
69ReturnT callPlatformFunction(const QByteArray &functionName, Arg1 a1, Arg2 a2)
70{
71 FunctionT func = reinterpret_cast<FunctionT>(QGuiApplication::platformFunction(function: functionName));
72 return func ? func(a1, a2) : ReturnT();
73}
74
75template<typename ReturnT, typename FunctionT, typename Arg1, typename Arg2, typename Arg3>
76ReturnT callPlatformFunction(const QByteArray &functionName, Arg1 a1, Arg2 a2, Arg3 a3)
77{
78 FunctionT func = reinterpret_cast<FunctionT>(QGuiApplication::platformFunction(function: functionName));
79 return func ? func(a1, a2, a3) : ReturnT();
80}
81
82template<typename ReturnT, typename FunctionT, typename Arg1, typename Arg2, typename Arg3, typename Arg4>
83ReturnT callPlatformFunction(const QByteArray &functionName, Arg1 a1, Arg2 a2, Arg3 a3, Arg4 a4)
84{
85 FunctionT func = reinterpret_cast<FunctionT>(QGuiApplication::platformFunction(function: functionName));
86 return func ? func(a1, a2, a3, a4) : ReturnT();
87}
88
89}
90
91QT_END_NAMESPACE
92
93#endif /*QPLATFORMHEADERHELPER_H*/
94

source code of qtbase/src/platformheaders/helper/qplatformheaderhelper.h