Biegral Blog

        今天，碰到一函数，一直在被调用，但一直找不到调用它的地方，跟踪了一下，原来该函数是定时器回调函数，示例程序如下（Timer1Timer是定时器回调函数）：

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
    : TForm(Owner)
{
}
//---------------------------------------------------------------------------

int __fastcall TForm1::MyFun()
{
    static int i = 0;
    return ++i;
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Timer1Timer(TObject *Sender)
{
    Label1->Caption = IntToStr(MyFun());
}
//---------------------------------------------------------------------------