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true;}Else{return false;}}Print functions, parameters for printer commands or other text!public bool Write (string MyString){if (ihandle! = 1){int i;OVERLAPPED x;byte[] MyByte = System.Text.Encoding.Default.GetBytes (MyString);Return WriteFile (Ihandle, MyByte, MyByte. Length, out I, out x);}Else{throw new Exception ("Port is not open!") ");}}Close the print portpublic bool Close (){return CloseHandle (Ihandle);}}}************************************

Some departments can not be directly linked to the system for some reason, so must be set. 1, clear the location of the ticket set, respectively, is the name, date, charge items, itemized charges, the amount of the case, the name of the toll 2, and then in Excel to make the same table content, you can play bills 3, but the first to the printer to customize the paper, the amount of good bill is the length and width of the number. 4, from the

C. drawing. in the namespace of printing, some access to system printers is provided. However, to be honest, it is too weak to obtain printer-related attributes. C # obtain the detailed information of the printer. Two methods are commonly used: Use Windows APIs Use WMI Here I am Using WMI, because this method uses SQL-like methods to manage Windows WMI information as a database form, easy

On the basis of the Win7 system, the printer settings cannot be saved when the printer is shared. The workaround for the operation cannot be completed (Error 0x000006d9) . 1, Right click ' Computer ' , select ' manage ' in the menu that appears, enter the Computer Management dialog box. 2. In the Computer Management dialog box, follow the path: services and Applications → Services

I met a user protection this morning, select print will pop up: "The current printer is not available, please select another printer," The initial check, found that the Workstation service was stopped, can not connect to the server's shared printer, start, try again, the situation is still, but the server can connect. Restart print SPOOLSV, or the same. So restar

1. In the lower left corner of the computer there is a win key, that is, the "Start" menu, we click on it or right click it will see a "Control Panel" click on it to enter. 2. Then we went into the control panel of the system and we found the "Network and Sharing Center" option to click into. 3. Into this interface we find the "Change advanced sharing Settings" on the left to go as shown in the following figure. 4. In the following figure we will see a "File and

Failure Phenomenon: The Windows 7 system shared printer appears "Cannot save printer setup operation cannot complete error 0x00000d9". 　　Reason Analysis: This problem is due to the firewall Windows Firewall service not being opened. 　Solution: Turn on Windows Firewall service Method One 1. Right mouse click on my Computer, choose management and open management; 2. Open the se

As shown in the following illustration, we are wrong to install a printer that says "The printer is not installed and the print processor does not exist": Solutions. 1. Check if the Winprint.dll file exists, The 64-bit system is in the C:/windows/system32/spool/prtprocs/x64 directory.32-bit system in the C:/windows/system32/spool/prtprocs/win32x86 directory) If we don't have our Winprint.dll fi

First open network and Sharing Center and select change advanced sharing settings Check "Enable Network Discovery" and "Enable file and Printer Sharing", and then save the changes. Then we open the "Computer" right button menu, select "Management" In Computer Management, we click: Local Users and Groups-user-guest, double-click Guest. In guest properties, uncheck "Account Disabled" and then OK. Then we open the Start menu, enter Secpol.

The Windows 7 system shared printer appears "Cannot save printer setup operation cannot complete error 0x00000d9". This problem is due to the firewall Windows Firewall service not being opened. Solution: Turn on Windows Firewall service Method One 1. Right mouse click on my Computer, choose management and open management; 2. Open the service and application on the left, double-

Applicable models HP Deskjet 200, 200cci, 400, 420C, 500, 500C, 550C, 500Q, 525Q, 600, 610, 630, 640, 656, 670, 690, 695 inkjet printers. HP Deskjet 710, 720, 810, 830, 840, 845, 880, 895, 850, 870, 890, 920, 930, 948, 950, 970, 990 inkjet printers. HP Deskjet 3000 series inkjet printer. hp Deskjet D1368, D1468, D1558, D1568, D1668, D2368, D2468, D2568, D2668, D730, k109a, D4168, D4268, D4368, D5568 inkjet printers. hp Deskjet 5160, 5168, 5438, 5

I have been logging onto the blog for a long time. I have just been in the development field for a year. I don't know what to write on my blog. Now I want to share some of my work experience with bar code printers.CodeI hope to give some help to scholars. I have a limited level and cannot write much. The specific code is as follows: // Enable the serial port of the printer. Internal class barcodeprinter{ // PortPrivate string filename; Public

Reason Analysis: Some people say that because the Windows Firewall service is not open, we can try to turn on Windows Firewall to see. Workaround: Open the Windows Firewall service. Fayi 1. The desktop right click on the "Computer" and then click "Management" specific operation as follows; 2. In the Computer Management window, we find the "services and Applications" on the left and then double-click Services as shown in the figure; 3. Then we find

Note: 1. If the paper source is selected automatically from the printer driver, this option is not displayed. 2. If the paper disk protection is turned on, for example, the paper Disk 1 set to open, the paper plate switching process will exclude paper disk 1. 1. Press the "menu" key on the control Panel. 2. Press the Left/right arrow on the Control Panel to select System settings, and then press the OK key. 3. Press the Le

What to do when you connect to a network shared printer, "The operation cannot be completed, and the printer name you typed is incorrect", this tutorial provides you with a workaround. 1, when adding a printer, enter the IP of the other machine, and then automatically show the share name of the printer, this is a very

" menu and choose "Printers and Faxes". 10. In the Open Printers and Faxes folder, you find that you already have a default printer icon. 11. After you add the printer you want, right-click the target printer and choose Set as default printer to set the pr