C++ Builder 参考手册 ➙ System ➙ TObject ➙ GetHashCode
头文件：#include <systobj.h>
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；
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
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
C++ Builder 参考手册 ➙ System ➙ TObject ➙ GetHashCode
