#define HEIGHT_RULER 10

LRESULT CALLBACK RulerProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam);

struct MDIINFO;

class CRuler
{
	MDIINFO *pMdiInfo;
	HDC memdc;
	HBITMAP hMemBmp;
public:
	HWND hRulerWnd;
	CRuler(HWND hParent,MDIINFO *pMdiInfo);
	~CRuler();

	void resize(int x,int y,int cx,int cy);
	void draw(HDC hdc);
};