#help_index "Graphics"
extern U8       *GrBitMap4ToBitMap8(U8 *dst, U8 *src, I64 src_size, I64 bkcolor);
extern I64       GrBlot3(CDC *dc, I64 x1, I64 y1, I64 z1, CDC *img);
extern I64      *Mat4x4New(I64 *src, CTask *mem_task=NULL);
extern U8       *SpriteQueue2Sprite(CSprite *head, I64 *_size=NULL);
extern CSprite  *SpriteSetSettings(CDC *dc=NULL, CSprite *head, I64 elem_num,
                                   I64 x=0, I64 y=0,
                                   CColorROPU32 *_color=NULL, I64 *_thick=NULL, I64 *_xx=NULL, I64 *_yy=NULL);