FindFirstFile,如何确定文件大小？

[public]

The WIN32_FIND_DATA structure describes a file found by the FindFirstFile, FindFirstFileEx, or FindNextFile function.

typedef struct _WIN32_FIND_DATA { // wfd
DWORD dwFileAttributes;
FILETIME ftCreationTime;
FILETIME ftLastAccessTime;
FILETIME ftLastWriteTime;
DWORD nFileSizeHigh;
DWORD nFileSizeLow;
DWORD dwReserved0;
DWORD dwReserved1;
TCHAR cFileName[ MAX_PATH ];
TCHAR cAlternateFileName[ 14 ];
} WIN32_FIND_DATA;
其中nFileSizeLow; 存放文件大小的低位双字
nFileSizeHigh; 文件大小的高位双字
应该如何确定文件的大小
例如：
DWORD dwsize=0
while (dwsize<文件大小）
{
byte* data = new byte[1024];
UINT dw=myFile.Read(data, 1024);
dwsize+=dw;
}
那么，我的文件大小该如何表示呢？

[public]

帮忙啊

[Yfspace]

如果文件> MAXDWORD
size 是 nFileSizeHigh*(MAXDWORD+1) + nFileSizeLow
否则
size 是 nFileSizeLow

[bbbsea]

MSDN解释：
Specifies the high-order DWORD value of the file size, in bytes. This value is zero unless the file size is greater than MAXDWORD. The size of the file is equal to (nFileSizeHigh * MAXDWORD) + nFileSizeLow.
文件大小：(nFileSizeHigh * MAXDWORD) + nFileSizeLow

[eWinding]

CFile ff("test.exe");
ff.filelengh is your need.

[cmpp]

我来学习一下！