Question

基于MFC的串口通信程序里无法识别SetCurrentDirectoryA ()这个函数

为什么我的程序里已经include了windows.h还是显示'SetCurrentDirectoryA': identifier not found？

Answer 1

Header: Declared in winbase.h.
Import Library: Use kernel32.lib.

SetCurrentDirectory
The SetCurrentDirectory function changes the current directory for the current process.

BOOL SetCurrentDirectory(
LPCTSTR lpPathName // pointer to name of new current directory
);

Parameters
lpPathName
Pointer to a null-terminated string that specifies the path to the new current directory. This parameter may be a relative path or a fully qualified path. In either case, the fully qualified path of the specified directory is calculated and stored as the current directory.
Return Values
If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks
Each process has a single current directory made up of two parts:

A disk designator that is either a drive letter followed by a colon, or a server name and share name (\\servername\sharename)
A directory on the disk designator
QuickInfo
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in winbase.h.
Import Library: Use kernel32.lib.
Unicode: Implemented as Unicode and ANSI versions on Windows NT.