#include
const int ScrnWidth=1366;
const int ScrnHight=768;
const long SnowCol =0xFEFFFE;
const long SnowColDown =0xFFFFFF;
const long SnowColDuck =0xFFDDDD;
const int SnowNum = 500;
const int ID_TIMER = 1;
const char g_szClassName[] = "myWindowClass";

typedef struct POINTAPI
{
 long x;
 long y;
}a;

static HDC hDC1;
static struct POINTAPI pData[500];
static long pColor[500];
static int Vx,Vy,PVx,PVy,timecont;

long Abs(long num)
{
 if(num>=0)return(num);
 else return(-num);
}

int Random(int max)
{
 return(rand()%max);
}

int InitP(int i)
{
 pData[i].x=Random(ScrnWidth);
 pData[i].y = Random(5);
 pColor[i] = GetPixel(hDC1, pData[i].x, pData[i].y);
}

long GetContrast(int i)
{
long ColorCmp;
long tempR;
long tempG;
long tempB;
int Slope;

if(PVy!=0) Slope = PVx / PVy;
else Slope = 2;

if(Slope==0) ColorCmp = GetPixel(hDC1, pData
[i].x, pData[i].y + 1);
else if(Slope > 1) ColorCmp = GetPixel(hDC1, pData
[i].x + 1, pData[i].y + 1);
 else ColorCmp = GetPixel(hDC1, pData[i].x - 1, pData
[i].y + 1);

if(ColorCmp==SnowCol)return 0;

tempB = Abs((ColorCmp>>16)&0xff - (pColor[i]>>16)
&0xff);
tempG = Abs((ColorCmp>>8)&0xff - (pColor[i]>>8)&0xff);
tempR = Abs((ColorCmp)&0xff - (pColor[i])&0xff);

//return
(tempR * 0.114 + tempG * 0.587 + tempB * 0.299);
return((tempR + tempG + tempB) / 3);
}

void DrawP(void)
{
int i;
// srand(time(0));
for(i=0;i

代码都不全 怎么帮?

看不懂哈

我也表示看不懂

打印随机点。