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

# SHRegisterClassA(3w)

## NAME

**SHRegisterClassA** (SHLWAPI.183)

## SYNOPSIS

DWORD SHRegisterClassA\
  (\
   WNDCLASSA\* *wndclass*\
  )

## DESCRIPTION

Register a window class if it isn't already.

## PARAMS

lpWndClass **\[In\]**  Window class to register.

## RETURNS

The result of the RegisterClassA call.

## IMPLEMENTATION

Exported by ordinal only. Use **[GetProcAddress(3w)](/GetProcAddress/3w.md)** to obtain a pointer to the function.

Implemented in **"dlls/shlwapi/ordinal.c"**.

Debug channel **"shell"**.