获取打印机的DC [英] Get DC for printer

问题描述

我正在使用以下命令获取打印机的DC:

I''m using the following to get the DC for the printer:

CDC dc;
if(!AfxGetApp()->CreatePrinterDC(dc))
     AfxMessageBox("unable to create dc");

但是，它总是返回FALSE.所以请帮帮我...

谢谢
必须调用Vivek Chauhan

But, it always returns FALSE. So please help me out...

Thanks
Vivek Chauhan

推荐答案

CWinApp::UpdatePrinterSelection才能获得有效的DC.如果您遵循文档中建议的步骤，则会自动执行此调用: 如何在MFC中创建打印机设备上下文(DC)" .
:)

CWinApp::UpdatePrinterSelection must be called in order to obtain a valid DC. This call is automatically performed if you follows the steps suggested in the documentation: "How To Create a Printer Device Context (DC) in MFC".
:)

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