TObject::GetHashCode - C++ Builder

C++ Builder 参考手册 ➙ System ➙ TObject ➙ GetHashCode

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头文件：#include
命名空间：System
函数原型：

virtual int __fastcall GetHashCode(void);

System::TObject::GetHashCode 是 System::TObject 的成员函数，默认的返回整数值为对象的地址。

• 默认情况，32 位程序，返回值为对象的地址；64 位程序返回值为对象的地址的高 32 位与低 32 位的异或值；

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例：点击 Button1 显示 Button1 和 Form1 的 GetHashCode 值和他们的地址 (整数值)。

void __fastcall TForm1::Button1Click(TObject *Sender)
{
    int a = Sender->GetHashCode();
    int b = (int)Sender;
    Memo1->Lines->Add(a);
    Memo1->Lines->Add(b);

    a = this->GetHashCode();
    b = (int)this;
    Memo1->Lines->Add(a);
    Memo1->Lines->Add(b);
}

运行结果：

GetHashCode 运行结果

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参考：

• System::TObject::Equals
• System::TObject::ClassName
• System::TObject::ClassNameIs
• System::TObject::QualifiedClassName
• System::TObject::UnitName
• System::TObject::UnitScope
• System::TObject::ClassInfo
• System::TObject::ClassType
• System::TObject
• VCL 类继承关系

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C++ Builder 参考手册 ➙ System ➙ TObject ➙ GetHashCode