CODEWITHSUNDEEP
go
Micheal N.
Micheal N.

Reputation: 37

Convert uint16 array to string

I have an array of uint16 coming from WinAPI PROCESSENTRY32.szExeFile that I wanna convert to a string.

Here's my var type 

var hello [260]uint16

now I need to convert hello to a string. How can I do that?

Edit

Here's what I've tried:

func szExeFileToString(ByteString [260]uint16) string {
    b := make([]byte, len(ByteString))

    for i, v := range ByteString {
        b[i] = byte(v)
    }

    return string(b)
}

However, this returns pretty weird strings... result (the function should convert Windows process names in the PROCESSENTRY32.szExeFile (-> [260]uint16) type to string)

Upvotes: 1

Views: 1855

Answers (2)

Micheal N.
Micheal N.

Reputation: 37

Fixed it. Here's the fixed function to help anyone that gets into this question to convert PROCESSENTRY32.szExeFile result to a string.

Note: I've also forgot to use kernel32.NewProc("Process32FirstW") and kernel32.NewProc("Process32NextW") instead of kernel32.NewProc("Process32First")

func szExeFileToString(ByteString [260]uint16) string {
    var End = 0

    for i, _ := range ByteString {
        if ByteString[i] == 0 {
            End = i
            break
        }
    }

    return syscall.UTF16ToString(ByteString[:End])
}

Upvotes: -1

peterSO
peterSO

Reputation: 166569

package windows

import "golang.org/x/sys/windows"

func UTF16ToString

func UTF16ToString(s []uint16) string

UTF16ToString returns the UTF-8 encoding of the UTF-16 sequence s, with a terminating NUL removed.

Use windows.UTF16ToString. For example,

package main

import (
    "fmt"
    "golang.org/x/sys/windows"
)

func main() {
    var szExeFile [260]uint16
    szExeFile = [260]uint16{'e', 'x', 'e', 'F', 'i', 'l', 'e'}

    exeFile := windows.UTF16ToString(szExeFile[:])
    fmt.Println(exeFile)
}

Output:

exeFile

Upvotes: 3

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