== Draft ==

'''THIS PAGE IS A WORK IN PROGRESS''' ... Please make edits to this page to improve it!


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= SDL_Direct3D9GetAdapterIndex =

Get the D3D9 adapter index that matches the specified display index.

== Syntax ==

<syntaxhighlight lang='c'>
int SDL_Direct3D9GetAdapterIndex( int displayIndex );
</syntaxhighlight>

== Function Parameters ==

{|
|'''displayIndex'''
|the display index for which to get the D3D9 adapter index
|}

== Return Value ==

Returns the D3D9 adapter index on success or a negative error code on
failure; call [[SDL_GetError]]() for more information.

== Remarks ==

The returned adapter index can be passed to
<code>IDirect3D9::CreateDevice</code> and controls on which monitor a full
screen application will appear.

== Version ==

This function is available since SDL 2.0.1.

----
[[CategoryAPI]], [[CategorySystem]], [[CategoryDraft]]
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