winfilereader.cpp.svn-base
上传用户:market2
上传日期:2018-11-18
资源大小:18786k
文件大小:1k
源码类别:
外挂编程
开发平台:
Windows_Unix
- #include "winfilereader.h"
- #include <windows.h>
- WinFileReader::WinFileReader (const char *filename)
- {
- OFSTRUCT buf;
- buf.cBytes = sizeof (OFSTRUCT);
- hFile = CreateFile (filename, GENERIC_READ, FILE_SHARE_READ,
- NULL, OPEN_EXISTING, 0, NULL);
- if (hFile == INVALID_HANDLE_VALUE)
- throw 0;
- size = GetFileSize (hFile, NULL);
- hMapFile = CreateFileMapping (hFile, NULL, PAGE_READONLY,
- 0, size, NULL);
- if (hMapFile == NULL) {
- CloseHandle (hFile);
- throw 1;
- }
- addr = (char *) MapViewOfFile (hMapFile, FILE_MAP_READ, 0, 0, size);
- if (addr == NULL) {
- CloseHandle (hMapFile);
- CloseHandle (hFile);
- throw 2;
- }
- }
- WinFileReader::~WinFileReader ()
- {
- CloseHandle (hMapFile);
- CloseHandle (hFile);
- }
- unsigned int
- WinFileReader::getSize ()
- {
- return (unsigned int) size;
- }
- unsigned int
- WinFileReader::readInt (unsigned int offset)
- {
- unsigned int *i;
- i = (unsigned int *) &(addr[offset]);
- return *i;
- }
- const char *
- WinFileReader::readStr (unsigned int offset)
- {
- const char *s;
- s = (const char *) &(addr[offset]);
- return s;
- }