You can now launch FCheck from within Maya by selecting File > View Image or File > View Sequence.
Maya uses FCheck as an image previewer to display intermediate results of a rendering. FCheck can be opened within Maya when using the following tools.
Uses FCheck to externally preview the current animation.
See Playblast animation for information on how to use FCheck with playblast.
Uses FCheck to externally display an animation rendering rendered using your computer’s display graphics card.
The Render > Show Batch Render function uses FCheck to preview the latest rendered image when batch rendering.
See Render > Show Batch Render for information on how to open FCheck when batch rendering.