#include "myWin.h"
#include "hideEvent.h"
static int X=0, dX=5;
void procTimer(HWND hw, WPARAM wp,LPARAM lp){
	RECT rctD; GetClientRect(hw,&rctD);
	  if     (X+50>=rctD.right) dX= -5;
	  else if(X<=0)             dX=  5;
	  X +=dX; 
	InvalidateRect(hw,NULL,TRUE);
}
void procPaint(HWND hw, WPARAM wp,LPARAM lp){
	PAINTSTRUCT ps;	HDC hdc=BeginPaint(hw,&ps);
	  SelectObject(hdc, GetStockObject(BLACK_BRUSH));
	  Ellipse(hdc,X,50,X+50,100);
	EndPaint(hw,&ps);
}
void procCreate(HWND hw, WPARAM wp,LPARAM lp){
	EVENT_DEF(WM_TIMER,procTimer,true);
	EVENT_DEF(WM_PAINT,procPaint,true);
	SetTimer(hw,1,10,NULL);
}