typedef struct tagPAINTSTRUCT {
　　HDC hdc;
　　BOOL fErase;
　　RECT rcPaint;
　　BOOL fRestore;
　　BOOL fIncUpdate;
　　BYTE rgbReserved[32];
　　} PAINTSTRUCT, *PPAINTSTRUCT;


请问:
1, RECT rcPaint;             rc前缀是什么意思?
2,BYTE rgbReserved[32];      rgb前缀是什么意思/
 

typedef struct tagRECT {
  LONG left;
  LONG top;
  LONG right;
  LONG bottom;
} RECT, *PRECT, NEAR *NPRECT, FAR *LPRECT;
Members
left
Specifies the x-coordinate of the upper-left corner of the rectangle.
top
Specifies the y-coordinate of the upper-left corner of the rectangle.
right
Specifies the x-coordinate of the lower-right corner of the rectangle.
bottom
Specifies the y-coordinate of the lower-right corner of the rectangle.
Headers
就是矩形


BYTE   An 8-bit integer that is not signed  8字节