GetCurrentDirectoryW

GetCurrentDirectoryW is a function in the Windows API that retrieves the current directory for the current process. The "W" suffix indicates that the function uses wide characters, meaning it supports Unicode. This function is particularly useful in applications that need to manage file paths and directories, especially when dealing with international characters.

The function prototype for GetCurrentDirectoryW is as follows:

DWORD GetCurrentDirectoryW(

DWORD nBufferLength,

LPWSTR lpBuffer

);

The function takes two parameters: nBufferLength, which specifies the size of the buffer pointed to by lpBuffer, and lpBuffer, which is a pointer to a buffer that receives the current directory string. The function returns the length of the string copied to lpBuffer, not including the terminating null character, or zero if the function fails.

If the buffer is too small to hold the path, the function returns the required buffer size, in characters, including the terminating null character. The application can then allocate a buffer of the required size and call the function again.

GetCurrentDirectoryW is a straightforward function that provides a simple way to obtain the current directory of a process. It is commonly used in file operations, logging, and other scenarios where the current directory is needed. However, it is important to note that the current directory can be changed by the process or by other processes, so the returned value may not always be accurate.