printing

问题 class Box { // Instance Variables double length ,ipsos ; double width ,mikos ; double height ,platos; // Constructors public Box ( double side ) { width = side ; height = side ; length = side ; } public Box ( double x , double y , double z) { platos = y ; ipsos = z; mikos = x ; } // Methods double calculate(double praksi) { return 2 * ( width * height + width * length + height * length ) ; } double volume(double emvadon) { return platos*ipsos*mikos ; } } In the upper code, how can I make a

问题 I have tried using a Bluetooth dongle (Advik) with my "KodakESP-3+2445" printer. I have created an Android client to connect to this printer. I select a UUID for OPP (Object Push Profile) and was able to obtain a BluetoothSocket and 'socket.write' a file to the printer. However, no print out was obtained from the printer. I tried other Bluetooth UUID such as (BIP, BPP, Direct Printing, SPP etc), but socket connection fails for each of these profiles, except OPP (Object Push Profile). I

问题 I am trying to to take the print out of a page using php. I can do it in Javascript. But would like to do it using PHP. Is there any way to do other than using Javascript 回答1: No. Printing a page is a function of the browser, so you have to use code that's running in the browser. That means Javascript only, not PHP. 回答2: <?php error_reporting(0); include('config.php'); $ftch="SELECT * FROM tb_patient_info WHERE patient_id='9'"; $ftch_row=mysql_fetch_array(mysql_query($ftch)); $ink=base64

问题 In civicrm print invoice button is not working in wordpress. Error occur like this Firefox can't find the file at http://wwwwwwwwww/dashboard/?page=CiviCRM&q=civicrm/contribute/invoice&reset=1&id=43&cid=2. how to resolve this ? 回答1: I don't have a real answer for this - but my working local drupal url looks like: http://dmaster.local/civicrm/contribute/invoice?reset=1&id=185&cid=202 Whereas yours is: http://wwwwwwwwww/dashboard/?page=CiviCRM&q=civicrm/contribute/invoice&reset=1&id=43&cid=2 My

问题 I'd like to use PrintUIEntryW (of printui.dll ) to install a printer driver on Windows system. My code looks like following (pseudo). m = LoadLibrary(L"printui.dll"); printuientry = GetProcAddress(m, "PrintUIEntryW"); // set arg_string printuientry(NULL, m, arg_string, SW_SHOW); Could I check the return value of the function or something like GetLastError() to check if the desired call is successful? There seems no msdn entry for this function. Thanks in advance. 回答1: PrintUIEntry is

问题 I'd like to use PrintUIEntryW (of printui.dll ) to install a printer driver on Windows system. My code looks like following (pseudo). m = LoadLibrary(L"printui.dll"); printuientry = GetProcAddress(m, "PrintUIEntryW"); // set arg_string printuientry(NULL, m, arg_string, SW_SHOW); Could I check the return value of the function or something like GetLastError() to check if the desired call is successful? There seems no msdn entry for this function. Thanks in advance. 回答1: PrintUIEntry is

问题 I am having some trouble printing only a specific value of the scraped html This the specific line of HTML my program scrapes for <input name="form_key" type="hidden" value="MmghsMIlPm5bd2Dw"/> My code is as follows import requests, time from bs4 import BeautifulSoup from colorama import Fore, Back, Style, init print(Fore.CYAN + "Lets begin!"") init(autoreset=True) url = raw_input("Enter URL: ") print(Fore.CYAN + "\nGetting form key") r = requests.get(url) soup = BeautifulSoup(r.content,

问题 How can I keep track of Printer's activities such as: When did printing start? How many pages have been printed out? etc 回答1: You would want to set up a service that listens to printer change notification events using the FindFirstPrinterChangeNotification, FindNextPrinterChangeNotification, and FindClosePrinterChangeNotification functions. And listen to the PRINTER_CHANGE_JOB event. When a print job event is raised you can get access to the necessary job information from the PRINTER_NOTIFY

问题 I have a macro that filters the table based on column A values. Now I want to print only the visible rows after the filter, but sadly it prints all of the rows including the top and bottom rows that were hidden during the filter. In my sheet, there are data from Column A:I , but the print area should only be Columns C:I - visible rows after filter. Here are the codes that I've tried so far that didn't work: Code 1: ActiveSheet.PageSetup.printarea = Range("C3:I81000").Rows.SpecialCells

问题 I am producing a receipt with my c# and CPCL code. I've got company name on the top of the receipt.Company name is setup according to who is using that software, I want be able to center that company name. I have tried with command CENTER but its not doing anything I dont know If I am doing something wrong. My Code is: SendData = " ! U1 setvar \"device.languages\" \"line_print\"\r\n"; SendData += " ! U SETLP 5 1 46\r\nPAGE-WIDTH 480\r\nSETBOLD 2\r\nPRINT\r\n"; SendData += " ! U1 CENTER\r\n"