C++爱好者 - 网友留言

Printer, Canvas, PageWidth, PageHeight example

This example uses a button and a memo on a form. When the user clicks

the button, the content of the memo is printed, with a 200-pixel border

around the page. To run this example successfully, include

in your unit file.

void __fastcall TForm1::Button1Click(TObject *Sender)

{
  TPrinter Prntr = Printer();
  TRect r = Rect(200,200,Prntr->PageWidth-200,Prntr->PageHeight-200);
  Prntr->BeginDoc();
  Prntr->Canvas->TextRect(r, 200, 200, Memo1->Lines->Text);
  Prntr->EndDoc();
}


以上是BC中自带的打印列子程序， 但是调试没有办法通过。

我以为第一句应该是  TPrinter *Prntr = Printer();
这样调试就可以通过了，不知道是不是BC真的写错了还是我没有理解请指教谢谢

--------------------next---------------------