#include?
#include?
char?ch[3];
int?i;
HFONT?hfontohfont;
LRESULT?CALLBACK?WndProc（HWND?hWnd?UINT?message?WPARAM?wParam?LPARAM?lParam）?{
????PAINTSTRUCT?ps;
????HDC?hdc;
????RECT?r;
????COLORREF?oc;
????int?iNumPts;
????LPPOINT?lpPoints;??????????//?Path?data?points
????LPBYTE?lpTypes;????????????//?Path?data?types
????HPEN?hOldPen;

????switch（message）?{
????case?WM_CLOSE:
????????PostQuitMessage（0）;
????????break;
????case?WM_KEYUP:
????????if?（wParam==VK_ESCAPE||wParam==VK_SPACE）?PostQuitMessage（0）;
????????break;
????case?WM_PAINT:
????????BeginPaint（hWnd?&ps）;
????????hdc?=?ps.hdc;?//?the?device?context?to?draw?in
????????GetClientRect（hWnd?&r）;?//?Obtain?the?window‘s?client?rectangle
????????ohfont=Selectobject（hdchfont）;
???????