ExpandEnvironmentStringsW3w

Usage

Overview

Replaces references to environment variables of the form '%EnvVar%' by their value. If the environment variable does not exist, then the reference is left as is.

Params

src [In] The string to be expanded.

dst [Out] The buffer in which to put the expanded string.

len [In] The buffer size, in characters.

Returns

The number of characters copied into the buffer. If the buffer is too small, then the required buffer size, in characters including the trailing ' ', is returned. If the function fails for some other reason, then it returns 0.

Implementation

Declared in "winbase.h".

Implemented in "dlls/kernel32/environ.c".

Debug channel "environ".