小弟编写了如下代码:
unit Unit1;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs,printers, StdCtrls, Buttons, ExtCtrls;type
TForm1 = class(TForm)
Image1: TImage;
BitBtn1: TBitBtn;
procedure FormCreate(Sender: TObject);
procedure BitBtn1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation{$R *.dfm}procedure TForm1.FormCreate(Sender: TObject);
begin
image1.Canvas.Ellipse(0,0,100,100);
end;procedure TForm1.BitBtn1Click(Sender: TObject);
begin
printer.BeginDoc;
printer.Canvas.CopyRect(rect(0,0,100,100),image1.Canvas,rect(0,0,100,100));
printer.EndDoc ;
end;end.点击bitbtn1 后 打印机走纸 但去不能打出任何图像;
打印机是利盟z32型,
小弟确保打印机有墨,并且可以正常打印word文档;
问题何在?
unit Unit1;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs,printers, StdCtrls, Buttons, ExtCtrls;type
TForm1 = class(TForm)
Image1: TImage;
BitBtn1: TBitBtn;
procedure FormCreate(Sender: TObject);
procedure BitBtn1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation{$R *.dfm}procedure TForm1.FormCreate(Sender: TObject);
begin
image1.Canvas.Ellipse(0,0,100,100);
end;procedure TForm1.BitBtn1Click(Sender: TObject);
begin
printer.BeginDoc;
printer.Canvas.CopyRect(rect(0,0,100,100),image1.Canvas,rect(0,0,100,100));
printer.EndDoc ;
end;end.点击bitbtn1 后 打印机走纸 但去不能打出任何图像;
打印机是利盟z32型,
小弟确保打印机有墨,并且可以正常打印word文档;
问题何在?
解决方案 »
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