我的程序只能执行一次,要换参数还需关了窗口再开,谁来帮我看看(内附程序,在线等...)
我的程序执行顺序:输入参数a,b,c后点确认键,就开始画图
但我如果想换个参数重画,就必须先关了程序再开
而我希望的是每按一次确认键就按参数画一遍
我该怎么改?
谢谢指教!
void CDialog1::OnButton1()
{ double t = 0.0;
double a,b,c,k;
this->UpdateData();
a = this->m_d;
b = this->m_e;
c = this->m_f;
CPaintDC dc(this);
dc.SetMapMode(MM_ANISOTROPIC);
dc.SetWindowOrg(-32000,32000);
dc.SetWindowExt(int(2000*32.000),-32000*2);
CRect rc;
GetClientRect(rc);
dc.SetViewportOrg(0,70);
dc.SetViewportExt(rc.Width(),rc.Height()-70);
CPen pen(PS_SOLID,1,RGB(0,0,255)),*pOldPen;
pOldPen = dc.SelectObject(&pen);
dc.BeginPath();
dc.SelectObject(&pen);
dc.MoveTo(-32000,0);
dc.LineTo(32000,0);
dc.MoveTo(0,-32000);
dc.LineTo(0,32000);
dc.MoveTo(-32000,-32000);
dc.LineTo(32000,32000);
dc.MoveTo(-32000,int(FunMove(-32.0,k,a,b,c)*1000));
for( t = -32.000+0.02;t<= 32.000;t+=0.01)
{
double y ;
y = int(FunMove(t,k,a,b,c)*1000);
dc.LineTo(int(1000*t),y);
}
dc.EndPath();
dc.StrokePath();
CDialog::OnPaint();
}