void MyWindow::draw ()
{ int i,j,k,f;
double zre,zim,wre,wim,wrenew,deltax,deltay;
ULONG color;
bitmap->directcolor();
deltax=(Xmax-Xmin)/width();
deltay=(Ymax-Ymin)/height();
for (i=0; i<width(); i++)
{ zre=Xmin+i*deltax;
for (j=0; j<=height(); j++)
{ wre=zre;
wim=zim=Ymin+j*deltay;
for (k=0; k<Iterations; k++)
{ if (wim*wim+wre*wre>16) break;
wrenew=wre*wre-wim*wim+zre;
wim=2*wre*wim+zim;
wre=wrenew;
}
if (k<Iterations)
{ f=255l*k/Iterations;
color=Rgb(0,255-f,f);
}
else color=0;
bitmap->point(i,j,color);
}
if (i%10==0) copy();
}
window.update();
}
void parameter (int command)
{ xmin.set(window.xmin()); xmax.set(window.xmax());
ymin.set(window.ymin()); ymax.set(window.ymax());
iterations.set(window.iterations());
d.carryout(); if (d.result()!=DID_OK) return;
window.set(xmin,xmax,ymin,ymax,iterations);
window.update();
thread.start();
}