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

SDL_ClipboardDataCallback

Callback function that will be called when data for the specified mime-type is requested by the OS.

Header File

Syntax

typedef const void *(SDLCALL *SDL_ClipboardDataCallback)(void *userdata, const char *mime_type, size_t *size);

Function Parameters

userdata	a pointer to provided user data.
mime_type	the requested mime-type.
size	a pointer filled in with the length of the returned data.

Return Value

Returns a pointer to the data for the provided mime-type. Returning NULL or setting length to 0 will cause no data to be sent to the "receiver". It is up to the receiver to handle this. Essentially returning no data is more or less undefined behavior and may cause breakage in receiving applications. The returned data will not be freed so it needs to be retained and dealt with internally.

Remarks

The callback function is called with NULL as the mime_type when the clipboard is cleared or new data is set. The clipboard is automatically cleared in SDL_Quit().

Version

This function is available since SDL 3.1.3.