射击

 hdc = GetDC(hWnd);
   mdc=CreateCompatibleDC(hdc);
   bufdc=CreateCompatibleDC(hdc);

   bmp=CreateCompatibleBitmap(hdc,640,480);
   SelectObject(mdc,bmp);

   bg=(HBITMAP)LoadImage(NULL,"bg.bmp",IMAGE_BITMAP,640,480,LR_LOADFROMFILE);
   ship=(HBITMAP)LoadImage(NULL,"ship.bmp",IMAGE_BITMAP,300,100,LR_LOADFROMFILE);
   bullet=(HBITMAP)LoadImage(NULL,"bullet.bmp",IMAGE_BITMAP,40,10,LR_LOADFROMFILE);

   x=200;
   y=200;
   nowX=200;
   nowY=200;

   bcount=1;

   //设定鼠标光标位置
   pt.x=200;
   pt.y=200;
   ClientToScreen(hWnd,&pt);
   SetCursorPos(pt.x,pt.y);

  // ShowCursor(false);

   //限制鼠标光标移动区域
   GetClientRect(hWnd,&rect);
   lt.x=rect.left;
   lt.y=rect.top;
   rb.x=rect.right;
   rb.y=rect.bottom;
   ClientToScreen(hWnd,&lt);
   ClientToScreen(hWnd,&rb);

   rect.left=lt.x;
   rect.top=lt.y;
   rect.right=rb.x;
   rect.bottom=rb.y;

   ClipCursor(&rect);

   MyPaint(hdc);

void MyPaint(HDC hdc)
{
 char str[20]="";
 int i,distanceX,distanceY;

 SelectObject(bufdc,bg);
 BitBlt(mdc,0,0,640,480,bufdc,0,0,SRCCOPY);

 SelectObject(bufdc,ship);
 BitBlt(mdc,nowX-100,nowY-80,150,100,bufdc,150,0,SRCAND);
 BitBlt(mdc,nowX-100,nowY-80,150,100,bufdc,0,0,SRCPAINT);
 if (nowX<x)
 {
  nowX+=10;
  if(nowX>x)
   nowX=x;
 }
 else
 {
  nowX-=10;
  if(nowX<x)
   nowX=x;
 }
 if (nowY<y)
 {
  nowY+=10;
  if(nowY>y)
   nowY=y;
 }
 else
 {
  nowY-=10;
  if(nowY<y)
   nowY=y;
 }

     for (i=0;i<10;i++)
  {
    SelectObject(bufdc,bullet);
    BitBlt(mdc,b[i].x,b[i].y,20,10,bufdc,20,0,SRCAND);
    BitBlt(mdc,b[i].x,b[i].y,20,10,bufdc,0,0,SRCPAINT);
  }

 sprintf_s(str,"X坐标：%d  ",x);
 TextOut(mdc,0,0,str,strlen(str));
 sprintf_s(str,"Y坐标：%d  ",y);
 TextOut(mdc,0,20,str,strlen(str));
 
 BitBlt(hdc,0,0,640,480,mdc,0,0,SRCCOPY);

 tPre=GetTickCount();
}

void GameCycle()
{
 int w,h,i;
 w=20;
 h=10;
 SelectObject(bufdc,bg);
 BitBlt(mdc,0,0,640,480,bufdc,0,0,SRCCOPY);

 SelectObject(bufdc,ship);
 BitBlt(mdc,nowX-100,nowY-80,150,100,bufdc,150,0,SRCAND);
 BitBlt(mdc,nowX-100,nowY-80,150,100,bufdc,0,0,SRCPAINT);
   
    for(i=0;i<10;i++)
 {

    SelectObject(bufdc,bullet);
    BitBlt(mdc,b[i].x,b[i].y,20,10,bufdc,20,0,SRCAND);
    BitBlt(mdc,b[i].x,b[i].y,20,10,bufdc,0,0,SRCPAINT); 
    b[i].exist=false;
 
 }
 
    BitBlt(hdc,0,0,640,480,mdc,0,0,SRCCOPY);
 tPre=GetTickCount();
 tNow =tPre+400;
 bcount=1;
 if(bcount==10)
  bcount=0;

}

 case WM_LBUTTONDOWN:
  x=LOWORD(lParam);
  y=HIWORD(lParam);
  if ((x>200)&&(y>185))
  {
    // ZeroMemory(&b,sizeof(b));
           dX=(x-200)/10;
     dY=(y=185)/10;
     b[0].x=200;
     b[0].y=185;
     b[0].exist=true;
    for (i=1;i<10;i++)
    {
   b[i].x=200+dX*i;
   b[i].y=185+dY*i;
    }
    bcount=10;
  }