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title _set_app_type | Microsoft Docs
ms.custom
ms.date 11/04/2016
ms.reviewer
ms.suite
ms.tgt_pltfrm
ms.topic article
apiname
_set_app_type
apilocation
api-ms-win-crt-runtime-l1-1-0.dll
apitype DLLExport
f1_keywords
_set_app_type
corecrt_startup/_set_app_type
dev_langs
C++
ms.assetid 1e7fe786-b587-4116-8c05-f7d762350100
caps.latest.revision 3
author corob-msft
ms.author corob
manager ghogen

_set_app_type

An internal function used at startup to tell the CRT whether the app is a console app or a GUI app.

Syntax

typedef enum _crt_app_type
{
    _crt_unknown_app,
    _crt_console_app,
    _crt_gui_app
} _crt_app_type;

void __cdecl _set_app_type(
    _crt_app_type appType
    );

Parameters

appType
A value that indicates the application type. The possible values are:

Value Description
_crt_unknown_app Unknown application type.
_crt_console_app Console (command-line) application.
_crt_gui_app GUI (Windows) application.

Remarks

Normally, you do not need to call this function. It is part of the C runtime startup code that executes before main is called in your app.

Requirements

Routine Required header
_set_app_type process.h