PRINTER_INFO_5* prninfo = NULL;
void CMFCApplication1Dlg::OnBnClickedButton8()
{
	DWORD dwNeeded=0, dwReturned=0;
	EnumPrinters(PRINTER_ENUM_LOCAL, NULL, 5, NULL, 0, &dwNeeded, &dwReturned);
	prninfo = (PRINTER_INFO_5*)GlobalAlloc(GPTR, dwNeeded);

	if (EnumPrinters(PRINTER_ENUM_LOCAL, NULL, 5, (LPBYTE)prninfo, dwNeeded,
	 &dwNeeded, &dwReturned)) 
	 {
		for (DWORD i = 0; i < dwReturned; i++, prninfo++) 
		{
			TCHAR szBuf[256];
			TRACE(_T("x = %s\n"), prninfo->pPrinterName);
		}
	}
}

2.設置默認打印機

TCHAR szPrinterName[1024] = { 0 };
GetDlgItemText(IDC_EDIT1, szPrinterName, 1024);
BOOL ret = FALSE;
ret = SetDefaultPrinter(szPrinterName);
if (ret == FALSE)
	AfxMessageBox(_T("設置默認打印機失敗"));
else
	AfxMessageBox(_T("設置默認打印機成功"));

3.啟動打印機服務

ShellExecute(NULL, NULL, _T("cmd.exe"), _T("/C net start spooler"), 
             NULL, SW_SHOWNORMAL);

打印機的管理