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

# DefWindowProcA(3w)

## NAME

**DefWindowProcA** (USER32.@)

## SYNOPSIS

LRESULT DefWindowProcA\
  (\
   HWND   *hwnd*,\
   UINT   *msg*,\
   WPARAM *wParam*,\
   LPARAM *lParam*\
  )

## DESCRIPTION

See **[DefWindowProcW(3w)](/DefWindowProcW/3w.md)**.

## IMPLEMENTATION

Declared in **"winuser.h"**.

Implemented in **"dlls/user32/defwnd.c"**.

Debug channel **"win"**.