(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_GetDirect3D9AdapterIndex

Get the D3D9 adapter index that matches the specified display.

Header File

Defined in <SDL3/SDL_system.h>

Syntax

int SDL_GetDirect3D9AdapterIndex(SDL_DisplayID displayID);

Function Parameters

SDL_DisplayID

displayID

the instance of the display to query.

Return Value

(int) Returns the D3D9 adapter index on success or -1 on failure; call SDL_GetError() for more information.

Remarks

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

Version

This function is available since SDL 3.1.3.

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CategoryAPI, CategoryAPIFunction, CategorySystem

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