Set the default printer for printing programatically

16. June 2009 15:17

C# Code Snippets 

You need to print the document but you don't want to go to control panel or printer and faxes options and just want to get it changed automatically. You can even set the shared local network printer with this code.

Just with the code you can override the system settings and change the default printer for your system.

You need to use the namespace so in order to use the DLLImport attribute.

using System.Runtime.Interopservices;
//Set default printer to the one available with your system or network.
[DllImport("Winspool.drv")]
private static extern bool SetDefaultPrinter(string printerName);

Now on button click or on form load just change the printer you want to use while printing and then change it back to the one before.

//Set the default printer. I have set it as my Adobe PDF printer
SetDefaultPrinter("Adobe PDF");
Currently rated 5.0 by 1 person

Eject and Pop-in your CD / DVD with a hotkey

13. June 2009 16:41

Utils 

If you are annoyed with the malfunctioning of your CD/DVD ROM. This small utility will help you to eject and and again pop-in inside the ROM. Just press CTRL + Q to toggle. Place it anywhere you like on your system, I recommend to create a folder and then place a this utility inside it as it will installs on the first time you run the application and start-up with your windows the next time you boot in.

Download Link: CDAX.zip (113.18 kb)

 No Rating

Shoutdown/Logoff/Hibernate/Stand By - Use CODE to do 'em all

12. June 2009 17:32

C# Code Snippets 

Step 1: Add the following line to use the namespace. This is necessary as we need to use the User32.dll with DLLImport attribute.

using System.Runtime.InteropServices;

Step 2: Now add the below line to your code to use the methods from the User32.dll

[DllImport("user32.dll")]
public static extern void LockWorkStation();
[DllImport("user32.dll")]
public static extern int ExitWindowsEx(int uFlags, int dwReason);

Step 3: Once you complete the above two steps, you can now call the methods on button click or after some or with some particular event or the way you like.

LockWorkStation(); //Locks the workstation, Equivalent to WIN+L
ExitWindowsEx(0, 0)//Shutdowns the machine 
Application.SetSuspendState(PowerState.Suspend, true, true)  //Put the machine in stand-by mode
Application.SetSuspendState(PowerState.Hibernate, true, true); // Hibernates the system
 No Rating

Convert ASCII values from hex to characters

30. May 2009 15:46

C# Code Snippets 

This C# code takes in a list of ASCII values (hexadecimal) and shows the actual characters behind, thus converting hex values to strings.

// An object storing the hex value
string HexValue = "4765656B7065646961";
// An object storing the string value
string StrValue = "";
// While there's still something to convert in the hex string
while (HexValue.Length > 0)
{
    // Use ToChar() to convert each ASCII value (two hex digits) to the actual character
    StrValue += Convert.ToChar(Convert.ToUInt32(HexValue.Substring(0, 2), 16)).ToString();
    // Remove from the hex object the converted value
    HexValue = HexValue.Substring(2, HexValue.Length - 2);
}
// Show the converted value
MessageBox.Show(StrValue); 
 No Rating

Printing word documents without showing Print Dialog

29. May 2009 15:09

C# 

Just one Click! and documents queued to the printer. The code will provide you the full flexiblity to set the default printer and also to set other word document settings. I used the code to convert the word document to PDF using Adobe PDF printer driver, as I was unable to get the code to convert the word files to PDF using DLLs.Cool

 

Download the code and don't forget to look at the comments.

 

Download: docprntpdf.zip (645.83 kb)

 No Rating