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1、C语言一一绘画花朵代码部分#include #include #define PI 3.14159265LRESULT CALLBACK WindowProcedure ( HWND, UINT, WPARAM, LPARAM ); void OnPaint ( HDC );void DrawLine ( HDC, int, int, int, int );void DrawFlower ( HDC, int, int, COLORREF );void DrawTie ( HDC, int, int, COLORREF ); intWINAPI WinMain ( HINSTANCE hThi
2、sInstanceHINSTANCE hPrevInstanceLPSTR IpszArgument, int nFunsterStil ) char szClassName = TEXT ( DrawFlower);HWND hwnd;MSG msg;WNDCLASSEX wc = 0 ;wc.hInstance = hThisInstance;wc.lpszClassName = szClassName;wc.lpfnWndProc = WindowProcedure;wc.style = CS_DBLCLKS;wc.cbSize = sizeof ( WNDCLASSEX );wc.hI
3、con = LoadIcon ( NULL, IDI_APPLICATION );wc.hIconSm = LoadIcon ( NULL, IDI_APPLICATION );wc.hCursor = LoadCursor ( NULL, IDC_ARROW );wc.hbrBackground = ( HBRUSH ) ( COLOR_WINDOW+1 );if ( !RegisterClassEx ( &wc ) ) return 0;hwnd = CreateWindowEx ( 0, szClassName, szClassName, WS_OVERLAPPEDWINDOW,CW_U
4、SEDEFAULT, 0, CW_USEDEFAULT, 0, HWND_DESKTOP, NULL, hThisInstance, NULL );ShowWindow ( hwnd, nFunsterStil );while ( GetMessage ( &msg, NULL, 0, 0 ) TranslateMessage ( &msg );DispatchMessage ( &msg );return msg.wParam;LRESULT CALLBACK WindowProcedure ( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lPara
5、m ) PAINTSTRUCT ps;HDC hdc;switch ( msg )case WM_PAINT:hdc = BeginPaint ( hwnd, &ps );OnPaint ( hdc );EndPaint ( hwnd, &ps );break;case WM_DESTROY:PostQuitMessage ( 0 );break;default:return DefWindowProc ( hwnd, msg, wParam, lParam ); return 0;void OnPaint ( HDC hdc )HPEN h;/画蝴蝶结DrawTie ( hdc, 195,
6、354, RGB ( 255,0,255 );/画枝干h = CreatePen ( PS_SOLID, 1, RGB ( 0,255,0 );SelectObject ( hdc, h );DrawLine ( hdc, 189, 372, 180, 400 );DrawLine ( hdc, 310, 160, 325, 68 );DrawLine ( hdc, 310, 160, 187, 374 );DrawLine ( hdc, 150, 140, 189, 374 );DrawLine ( hdc, 430, 176, 190, 374 );DrawLine ( hdc, 370,
7、 110, 187, 374 );DrawLine ( hdc, 250, 72, 189, 372 );DrawLine ( hdc, 253, 192, 190, 374 );DrawLine ( hdc, 189, 372, 187, 400 );DrawLine ( hdc, 189, 372, 182, 400 );DrawLine ( hdc, 189, 372, 200, 120 );DeleteObject ( h );/画花朵DrawFlower ( hdc, 320, 160, RGB ( 255,0,0 );DrawFlower ( hdc, 200, 120, RGB
8、( 0,255,0 );DrawFlower ( hdc, 150, 140, RGB ( 0,0,255 );DrawFlower ( hdc, 430, 176, RGB ( 255, 127, 0 );DrawFlower ( hdc, 370, 110, RGB ( 239, 179, 52 );DrawFlower ( hdc, 250, 72, RGB ( 235, 95, 186 );DrawFlower ( hdc, 325, 68, RGB ( 228, 119, 98 );DrawFlower ( hdc, 253, 190, RGB ( 247, 169, 117 );
9、/画花朵void DrawFlower ( HDC hdc, int x, int y, COLORREF c ) int x1, y1, x2, y2;const int d = 30;double a, e;HPEN h;h = CreatePen ( PS_SOLID, 1, c );SelectObject ( hdc, h );for ( a = 0; a 2 * PI; a += PI / 360 )e = d * ( 1 + sin ( a * 5 );x1 = ( int )( x +e* cos ( a );y1 = ( int )( y +e* sin ( a );x2 =
10、 ( int )( x +e* cos ( a + PI /5);y2 = ( int )( y +e* sin ( a + PI /5);DrawLine ( hdc, x1, y1, x2, y2 );DeleteObject ( h );/画蝴蝶结void DrawTie ( HDC hdc, int x, int y, COLORREF c ) int x1, y1, x2, y2;const int d = 100;double a, e;HPEN h;h = CreatePen ( PS_SOLID, 1, c );SelectObject ( hdc, h );for ( a =
11、 0; a 2 * PI; a += PI / 360 )e = d * ( 1 + sin ( a * 4 );x1 = ( int ) ( x + e * cos ( a );y1 = ( int ) ( y + e * sin ( a ) / 2 );x2 = ( int ) ( x + e * cos ( a + PI / 9 );y2 = ( int ) ( y + e * sin ( a + PI / 9 ) / 4.5 );DrawLine ( hdc, x1, y1, x2, y2 );DeleteObject ( h );/画线void DrawLine ( HDC hdc, int x1, int y1, int x2, int y2 ) MoveToEx ( hdc, x1, y1, NULL );LineTo ( hdc, x2, y2 );
