GetSpriteFrameSize /Drawing

vector2 GetSpriteFrameSize(string spriteName)

Returns the sprite current frame size.

Sample:

void onSceneLoaded()
{
	// load a 256x256 sprite
	LoadSprite("animations/animated_sprite_256x256.png");

	// divides the sprite into a 4x2 rect (4 columns and 2 rows)
	SetupSpriteRects("animations/animated_sprite_256x256.png", 4, 2);

	vector2 size = GetSpriteFrameSize("animations/animated_sprite_256x256.png");
	print("frame width:  " + size.x);
	print("frame height: " + size.y);
}

Output:

frame width:  64
frame height: 128