C#

There are cases in which you would need the Enter key to operate as the Tab key. In order for the Enter key to be used as a Tab key,

When working with an SQL Output parameters, you need to specify the parameter’s Direction property once you have created it. Here is a nice little example method: private float checkValue()

To get the text of an external window you could use the GetForegroundWindow and the GetWindowTextAPI functions. Here is a small example of its usage: public partial class Form1 :

A quick and dirty way to see if the application’s current platform is 64 Bit or 32 Bit is to test the size of the System.IntPtr variable, as shown in

The?best?way?to?copy?pictures?in?C#?is?most?probably?with?the?use?of?the?BitBlt?API.?Here?is?a?small?example?of?its?implementation: ????public?partial?class?Form1?:?Form ????{ ????????const?int?SRCCOPY?=?0xcc0020; ????????[System.Runtime.InteropServices.DllImportAttribute(“gdi32.dll”)] ????????private?static?extern?int?BitBlt( ??????????IntPtr?hdcDest,?????//?handle?to?destination?DC?(device?context) ??????????int?nXDest,?????????//?x-coord?of?destination?upper-left?corner ??????????int?nYDest,?????????//?y-coord?of?destination?upper-left?corner ??????????int?nWidth,?????????//?width?of?destination?rectangle ??????????int?nHeight,????????//?height?of?destination?rectangle ??????????IntPtr?hdcSrc,??????//?handle?to?source?DC ??????????int?nXSrc,??????????//?x-coordinate?of?source?upper-left?corner ??????????int?nYSrc,??????????//?y-coordinate?of?source?upper-left?corner ??????????System.Int32?dwRop??//?raster?operation?code ??????????); ????????public?Form1() ????????{ ????????????InitializeComponent(); ????????} ????????private?void?Form1_Paint(object?sender,?PaintEventArgs?e) ????????{ ????????????Graphics?g?=?e.Graphics; ????????????g.FillRectangle(Brushes.White,?ClientRectangle); ????????????g.DrawRectangle(Pens.Black,?10,?10,?40,?40); ????????????IntPtr?dc?=?g.GetHdc(); ????????????BitBlt(dc,?70,?0,?60,?60,?dc,?0,?0,?SRCCOPY); ????????????g.ReleaseHdc(dc); ????????} ????}

Unlike Visual Basic, C# doesn’t have built-in string methods to extract parts of string from the Left, Right or a location specified through Mid. Unfortunately you have to create the

Method Overloading means that you can have different methods having the same code, but with different parameters. Here is an example: class MyMath{ public static int Add(int number1, int number2)

Add the following function: public void DownloadFile(string urlAddress, string location) { using (webClient = new WebClient()) { webClient.DownloadFileCompleted += new AsyncCompletedEventHandler(Completed); webClient.DownloadProgressChanged += new DownloadProgressChangedEventHandler(ProgressChanged); Uri URL = urlAddress.StartsWith(“http://”, StringComparison.OrdinalIgnoreCase)

There is a very quick and easy to determine your CPU usage. You can use the following code. All you need to do is to add a Timer and set