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

SDL_GetCameraPermissionState

Query if camera access has been approved by the user.

Header File

Syntax

int SDL_GetCameraPermissionState(SDL_Camera *camera);

Function Parameters

SDL_Camera *

camera

the opened camera device to query.

Return Value

(int) Returns -1 if user denied access to the camera, 1 if user approved access, 0 if no decision has been made yet.

Remarks

Cameras will not function between when the device is opened by the app and when the user permits access to the hardware. On some platforms, this presents as a popup dialog where the user has to explicitly approve access; on others the approval might be implicit and not alert the user at all.

This function can be used to check the status of that approval. It will return 0 if still waiting for user response, 1 if the camera is approved for use, and -1 if the user denied access.

Instead of polling with this function, you can wait for a SDL_EVENT_CAMERA_DEVICE_APPROVED (or SDL_EVENT_CAMERA_DEVICE_DENIED) event in the standard SDL event loop, which is guaranteed to be sent once when permission to use the camera is decided.

If a camera is declined, there's nothing to be done but call SDL_CloseCamera() to dispose of it.

Thread Safety

It is safe to call this function from any thread.

Version

This function is available since SDL 3.1.3.