在两个程序间使用内存映射文件通信,
int _tmain(int argc, _TCHAR* argv[])
{
HANDLE hMapFile;
LPCTSTR pBuf;
hMapFile = CreateFileMapping(INVALID_HANDLE_VALUE,
NULL, PAGE_READWRITE, 0, BUF_SIZE, sName);
if (hMapFile == NULL) {
_tprintf(TEXT("Could not create file mapping object (%d).\n"), GetLastError());
return 1;
}
sprintf_s(sNick, "%s", "{\"id\":2}");
pBuf = (LPCTSTR)MapViewOfFile(hMapFile, FILE_MAP_ALL_ACCESS, 0, 0, BUF_SIZE);
if (pBuf == NULL) {
_tprintf(TEXT("Could not map view of file (%d).\n"), GetLastError());
CloseHandle(hMapFile);
return 1;
}
while (true)
{
printf("请输入操作指令:\n");
char a[10];
std::cin >> a;
sprintf_s(sNick, "指令1", a);
CopyMemory((PVOID)pBuf, sNick, 256);
}
UnmapViewOfFile(pBuf);
CloseHandle(hMapFile);
return 0;
}