WebReadDirectoryChangesW WinAPI函数返回,因此我假设该字符串是正确的. 假设wchar字符串是“New Text File.txt” 在Visual Studio调试器中,当将鼠标悬停在中的变量上时,会显示“N”和一些未知的中文字母。虽然在手表中,字符串被正确表示. 当我尝试使用 wcstombs WebMar 11, 2009 · 其中阻塞方式,必须采用多线程的方式,否则你的主线程被阻塞的话,对话框就动不了了。 非阻塞方式也可用多线程,结合hEvent对象来使用。 2.同步方式,如 …
windows - 为什么要异步使用 ReadDirectoryChangesW? - IT工具网
Web因此,如果你保持一个跟踪文件列表,应该也可以追踪到,我无法在Windows Vista上重现此现象。. 你还会收到一些意想不到的通知。. 例如,即使设置ReadDirectoryChangesW的参数,不通知子目录,仍然会得到通知。. 假设有两个目录C:A 和C:AB,如果你移动info.txt文件从 … ReadDirectoryChangesW fails with ERROR_NOACCESS when the buffer is not aligned on a DWORD boundary. ReadDirectoryChangesW fails with ERROR_NOTIFY_ENUM_DIR when the system was unable to record all the changes to the directory. In this case, you should compute the changes by … See more [in] hDirectory A handle to the directory to be monitored. This directory must be opened with theFILE_LIST_DIRECTORY access right, or an access right such as … See more If the function succeeds, the return value is nonzero. For synchronous calls, this means that the operationsucceeded. For asynchronous calls, this indicates that the … See more To obtain a handle to a directory, use the CreateFilefunction with the FILE_FLAG_BACKUP_SEMANTICSflag. A call to … See more flower shops in waconia
c++ - 异步 ReadDirectoryChangesW 调用阻止线程退出 - IT工具网
WebNov 14, 2016 · In DoRead (), before every call to ReadDirectoryChangesW call AddRef (); because we pass reference (across OVERLAPPED) to our struct to kernel. Main (say GUI … WebSep 22, 2024 · ReadDirectoryChangesW [in] lpOverlapped. A pointer to an OVERLAPPED structure that was specified when the overlapped operation was started. [out] lpNumberOfBytesTransferred. A pointer to a variable that receives the number of bytes that were actually transferred by a read or write operation. green bay rmcpay.com