struct ImBuf *(* SequencerDrawView)(struct Depsgraph *depsgraph, struct Scene *scene, struct View3DShading *shading_override, enum eDrawType drawtype, struct Object *camera, int width, int height, enum eImBufFlags flag, eV3DOffscreenDrawFlag draw_flags, int alpha_mode, const char *viewname, struct GPUOffScreen *ofs, char err_out[256])