unit2.cpp

来自「本书《C++Builder与WindowsAPI经典范例》附含配套光盘包括132」· C++ 代码 · 共 26 行

//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop

#include "Unit2.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
    : TForm(Owner)
{
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button1Click(TObject *Sender)
{
//转换AnsiString至char字符串
char *filename=FileListBox1->FileName.c_str();
//取得文件handle
HANDLE hFile = ::CreateFile(filename,
                            GENERIC_READ, 0, 0,
                            OPEN_EXISTING,
                            FILE_ATTRIBUTE_NORMAL, 0);
//取得文件大小