qt-opensource-windows-x86-msvc2010_opengl-5.3.2.exe
ZC: “const QString” 作传入参数的时候，不太会弄... 貌似 还是在进行构建等的操作，按照暂时的水平这种情况还不太会弄... 于是 用“QString&”或“QString*”作参数
ZC: Qt调试 比较麻烦，还是使用 VS2010 来调试 看汇编的...
1、mainwindows.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
} MainWindow::~MainWindow()
{
delete ui;
} #include <QDebug>
#include "TClassFuncPtr.h" void MainWindow::on_pbtnTest01_clicked()
{
//*
CTest test; void *pFunc = pointer_cast<void*>(&CTest::GetString); Tcfp_Qs_II cfp;
cfp.Set(&test, pFunc);
QString str = cfp.Call(, );
qDebug() << str;
//*/
/*
CTest test;
QString str = test.GetString(1, 3);
//*/
} void MainWindow::on_pbtnTest02_clicked()
{
QString str = "";
//*
CTest test; void *pFunc = pointer_cast<void*>(&CTest::GetIntFromString); Tcfp_I_CQs cfp;
cfp.Set(&test, pFunc);
int iRtn = cfp.Call(str);
qDebug() << str;
//*/
/*
CTest test;
int iRtn = test.GetIntFromString(str);
qDebug() << iRtn;
//*/
} void MainWindow::on_pbtnTest03_clicked()
{
QString str = "";
//*
CTest test; void *pFunc = pointer_cast<void*>(&CTest::GetIntFromString01); Tcfp_I_Qs cfp;
cfp.Set(&test, pFunc);
int iRtn = cfp.Call(str);
qDebug() << iRtn;
} void MainWindow::on_pbtnTest04_clicked()
{
QString str = "";
//*
CTest test; void *pFunc = pointer_cast<void*>(&CTest::GetIntFromString02); Tcfp_I_Qsp cfp;
cfp.Set(&test, pFunc);
int iRtn = cfp.Call(&str);
qDebug() << iRtn;
}
2、TClassFuncPtr.h
#ifndef TCLASSFUNCPTR_H
#define TCLASSFUNCPTR_H #include <QString> // ZC: 子类 命名规则：“Tcfp_返回值类型_各个传入参数类型()” class TClassFuncPtr
{
public:
TClassFuncPtr()
{
FpObj = NULL;
FpFunc = NULL;
} protected:
void* FpObj; // ZC: 对象指针
void* FpFunc; // ZC: 类函数的 函数地址(统一使用stdcall调用约定，函数传参/调用的时候 方便一点) public:
void Set(void *_pObj, void *_pFunc)
{
FpObj = _pObj;
FpFunc = _pFunc;
} bool IsValid()
{
return ( (FpObj != NULL) && (FpFunc != NULL) );
}
}; class Tcfp_Qs_II :public TClassFuncPtr
{
public:
QString __stdcall Call(int _i, int _j);
}; class Tcfp_I_CQs :public TClassFuncPtr
{
public:
int __stdcall Call(const QString _str);
}; class Tcfp_I_Qs :public TClassFuncPtr
{
public:
int __stdcall Call(QString &_str);
}; class Tcfp_I_Qsp :public TClassFuncPtr
{
public:
int __stdcall Call(QString *_pstr);
}; // ZC: 获取 类函数指针(地址)
template<typename dst_type,typename src_type>
dst_type pointer_cast(src_type src)
{
return *static_cast<dst_type*>(static_cast<void*>(&src));
}
#endif // TCLASSFUNCPTR_H class CTest
{
private:
int Fi;
public:
QString __stdcall GetString(int _i, int _j); int __stdcall GetIntFromString(const QString _str);
int __stdcall GetIntFromString01(QString &_str);
int __stdcall GetIntFromString02(QString *_pstr);
};
3、TClassFuncPtr.cpp
#include "TClassFuncPtr.h" #pragma optimize( "", off )
QString __stdcall Tcfp_Qs_II::Call(int _i, int _j)
{
if (IsValid())
{
_asm
{
push _j
push _i
mov eax,dword ptr [ebp+0xC]
push eax
mov eax,[this] // ZC: 貌似和语句“mov eax,this”是一样的效果...
// [eax] ==> FpObj
// [eax+4] ==> FpFunc
push [eax]
call [eax+]
}
}
} int __stdcall Tcfp_I_CQs::Call(const QString _str)
{
if (IsValid())
{
void *p = (void*)&_str;
_asm
{
push p
mov eax,[this] // ZC: 貌似和语句“mov eax,this”是一样的效果...
// [eax] ==> FpObj
// [eax+4] ==> FpFunc
push [eax]
call [eax+]
}
}
} int __stdcall Tcfp_I_Qs::Call(QString &_str)
{
if (IsValid())
{
_asm
{
mov eax,[ebp+0xC]
push eax
mov eax,[this] // ZC: 貌似和语句“mov eax,this”是一样的效果...
// [eax] ==> FpObj
// [eax+4] ==> FpFunc
push [eax]
call [eax+]
}
}
} int __stdcall Tcfp_I_Qsp::Call(QString *_pstr)
{
if (IsValid())
{
_asm
{
mov eax,[ebp+0xC]
push eax
mov eax,[this] // ZC: 貌似和语句“mov eax,this”是一样的效果...
// [eax] ==> FpObj
// [eax+4] ==> FpFunc
push [eax]
call [eax+]
}
}
} //#pragma optimize( "", on ) //#pragma optimize( "", off )
QString __stdcall CTest::GetString(int _i, int _j)
{
__asm
{
mov eax,eax
mov eax,eax
mov eax,eax
}
Fi = ;
return ( QString::number(_i)+","+QString::number(_j)+","+QString::number(Fi) );
} int __stdcall CTest::GetIntFromString(const QString _str)
{
return _str.toInt();
} int __stdcall CTest::GetIntFromString01(QString &_str)
{
return _str.toInt();
} int __stdcall CTest::GetIntFromString02(QString *_pstr)
{
return (*_pstr).toInt();
} #pragma optimize( "", on )
4、mainwindow.ui
4.1、
4.2、
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>400</width>
<height>300</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralWidget">
<widget class="QPushButton" name="pbtnTest01">
<property name="geometry">
<rect>
<x>50</x>
<y>40</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Test01</string>
</property>
</widget>
<widget class="QPushButton" name="pbtnTest02">
<property name="geometry">
<rect>
<x>50</x>
<y>70</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Test02</string>
</property>
</widget>
<widget class="QPushButton" name="pbtnTest03">
<property name="geometry">
<rect>
<x>50</x>
<y>100</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Test03</string>
</property>
</widget>
<widget class="QPushButton" name="pbtnTest04">
<property name="geometry">
<rect>
<x>50</x>
<y>130</y>
<width>75</width>
<height>23</height>
</rect>
</property>
<property name="text">
<string>Test04</string>
</property>
</widget>
</widget>
<widget class="QMenuBar" name="menuBar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>400</width>
<height>17</height>
</rect>
</property>
</widget>
<widget class="QToolBar" name="mainToolBar">
<attribute name="toolBarArea">
<enum>TopToolBarArea</enum>
</attribute>
<attribute name="toolBarBreak">
<bool>false</bool>
</attribute>
</widget>
<widget class="QStatusBar" name="statusBar"/>
</widget>
<layoutdefault spacing="6" margin="11"/>
<resources/>
<connections/>
</ui>
5、