Re:Delphi 2 : how to get the environment variable PATH ?
Quote
Thierry LEMAIRE wrote:
> I need to get the PATH environment variable. Does anyone know how to do it ?
There are several Win32 commands for this. I've cut and copied from the
Win32 help file. You can look other related commands up there:
The GetEnvironmentVariable function retrieves the value of the specified
variable from the environment block of the calling process. The value is
in the form of a null-terminated string of characters.
lpName would be a pchar := 'PATH'
lpBuffer would be a pchar/array you would read from
nSize would specify how much memory you've alloc'ed for lpBuffer
I hope this helps.
Steve Midgley
DWORD GetEnvironmentVariable(
LPCTSTR lpName, // address of environment variable name
LPTSTR lpBuffer, // address of buffer for variable value
DWORD nSize // size of buffer, in characters
);
Parameters
lpName
Points to a null-terminated string that specifies the environment
variable.
lpBuffer
Points to a buffer to receive the value of the specified environment
variable.
nSize
Specifies the size, in characters, of the buffer pointed to by the
lpBuffer parameter.
Return Value
If the function succeeds, the return value is the number of characters
stored into the buffer pointed to by lpBuffer, not including the
terminating null character.
If the specified environment variable name was not found in the
environment block for the current process, the return value is zero.
If the buffer pointed to by lpBuffer is not large enough, the return
value is the buffer size, in characters, required to hold the value
string and its terminating null character.
