用c语言做简单动画_用C语言编写动画

你的意思还是不太明白

我这有个程序 你看看能不能帮我改一下

#include

#include

#define PI 3.14

int cxClient, cyClient ;

float i, j, x, y ;

LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,

PSTR szCmdLine, int iCmdShow)

{

static TCHAR szAppName[] = TEXT (“SineWave”) ;

MSG msg ;

WNDCLASS wndclass;

HWND hwnd ;

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 (LTGRAY_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 (“美丽蝴蝶”),

WS_OVERLAPPEDWINDOW,

10, 10,

800, 600,

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)

{

HDC hdc ;

PAINTSTRUCT ps ;

RECT rect;

HBRUSH hBrush ;

HBITMAP bit;

HINSTANCE hinst ;

switch (message)

{

case WM_CREATE:

return 0 ;

case WM_SIZE:

cxClient = LOWORD (lParam) ;

cyClient = HIWORD (lParam) ;

InvalidateRect (hwnd, NULL, FALSE) ;

return 0;

case WM_PAINT:

hdc = BeginPaint (hwnd, &ps) ;

for(i = -6*PI;i < 6*PI;i +=0.01)

for(j = -3*PI;j < 3*PI;j += 0.01)

{

y = sin(i)*i*j+cyClient/2 ;

x = cos(i)*i*j+cxClient/2 ;

SetPixel(hdc

, x

, y

, RGB(i*6,255,j*5)) ;

}

EndPaint (hwnd, &ps) ;

return 0 ;

case WM_DESTROY:

PostQuitMessage (0) ;

return 0 ;

}

return DefWindowProc (hwnd, message, wParam, lParam) ;

}