windows画刷HBRUSH

/*-------------------------------------------------------------------ALTWIND.C -- Alternate and Winding Fill Modes-------------------------------------------------------------------*/#include <windows.h>LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,PSTR szCmdLine,int iCmdShow){static TCHAR szAppName[] = TEXT ("AltWind") ;HWND hwnd ;MSG msg ;WNDCLASS wndclass ;wndclass.style = CS_HREDRAW | CS_VREDRAW ;wndclass.lpfnWndProc= WndProc ;wndclass.cbClsExtra = 0 ;wndclass.cbWndExtra = 0 ;wndclass.hInstance = hInstance ;wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;wndclass.hbrBackground= (HBRUSH) GetStockObject (WHITE_BRUSH) ;wndclass.lpszMenuName= NULL ;wndclass.lpszClassName= szAppName ;if (!RegisterClass (&wndclass)) {MessageBox ( NULL, TEXT ("Program requires Windows NT!"),szAppName, MB_ICONERROR) ;return 0 ;}hwnd = CreateWindow (szAppName, TEXT ("Alternate and Winding Fill Modes"),WS_OVERLAPPEDWINDOW,CW_USEDEFAULT, CW_USEDEFAULT,CW_USEDEFAULT, CW_USEDEFAULT,NULL, NULL, hInstance, NULL) ;ShowWindow (hwnd, iCmdShow) ;UpdateWindow (hwnd) ;while (GetMessage (&msg, NULL, 0, 0)) {TranslateMessage (&msg) ;DispatchMessage (&msg) ;}return msg.wParam ;}LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {static POINT aptFigure [10] = {10,70, 50,70, 50,10, 90,10, 90,50, 30,50, 30,90, 70,90, 70,30, 10,30 };static int cxClient, cyClient ;HDC hdc ;int i ;PAINTSTRUCT ps ;POINT apt[10] ;switch (message) {case WM_SIZE:cxClient = LOWORD (lParam) ;cyClient = HIWORD (lParam) ;return 0 ;case WM_PAINT:hdc = BeginPaint (hwnd, &ps) ;SelectObject (hdc, GetStockObject (GRAY_BRUSH)) ;for (i = 0 ; i < 10 ; i++) {apt[i].x = cxClient * aptFigure[i].x / 200 ;apt[i].y = cyClient * aptFigure[i].y / 100 ;}SetPolyFillMode (hdc, ALTERNATE) ;Polygon (hdc, apt, 10) ;for (i = 0 ; i < 10 ; i++) {apt[i].x += cxClient / 2 ;}SetPolyFillMode (hdc, WINDING) ;Polygon (hdc, apt, 10) ;EndPaint (hwnd, &ps) ;return 0 ;case WM_DESTROY:PostQuitMessage (0) ;return 0 ;}return DefWindowProc (hwnd, message, wParam, lParam) ;}

运行结果如图：