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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) ;
}
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