---
name: "IsDBCSLeadByteEx"
section: "3w"
platform: "linux"
package: "libwine-dev"
version: "1.4.1-4"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/IsDBCSLeadByteEx"
---

# IsDBCSLeadByteEx(3w)

## NAME

**IsDBCSLeadByteEx** (KERNEL32.@)

## SYNOPSIS

BOOL IsDBCSLeadByteEx\
  (\
   UINT *codepage*,\
   BYTE *testchar*\
  )

## DESCRIPTION

Determine if a character is a lead byte in a given code page.

## PARAMS

*codepage* **\[In\]**  Code page for the test.

*testchar* **\[In\]**  Character to test.

## RETURNS

**TRUE**, if *testchar* is a lead byte in *codepage*, **FALSE** otherwise.

## IMPLEMENTATION

Declared in **"winnls.h"**.

Implemented in **"dlls/kernel32/locale.c"**.

Debug channel **"nls"**.