(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)

SDL_Direct3D9GetAdapterIndex

Get the D3D9 adapter index that matches the specified display.

Header File

Defined in <SDL3/SDL_system.h>

Syntax

int SDL_Direct3D9GetAdapterIndex(SDL_DisplayID displayID);

Function Parameters

displayID the instance of the display to query

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 IDirect3D9::CreateDevice and controls on which monitor a full screen application will appear.

Version

This function is available since SDL 3.0.0.

CategoryAPI, CategoryAPIFunction, CategorySystem