How to send keyboard key in my application?

Question

I'm currently using SendKeys.SendWait(text); in C# but SendKeys sending the key global and I have to activate my application and then send it. And another problem is when I type something in my keyboard (in another app) and the SendKeys function activates (in my app) mistakes happen.

So how can I send a message to my application regardless what application is active and what I type in my keyboard?

What is the purpose of this application, can you provide some relevant code you already have? — Caspar Kleijne
– Caspar Kleijne, Commented Jun 18, 2011 at 7:42
Well it a bot program - using webbrowser control. And i want to type message and send it. I cant do it with changing value of the input form... so i have to send keys to the application. About the code you want - there is noting to show. i just use the above function to send keys and that is it, but i want to change that function to match my requirements. — TreantBG
– TreantBG, Commented Jun 18, 2011 at 8:17

skink · Accepted Answer · 2011-06-18 08:42:05Z

2

SendMessage() does what you want. You'll need to use it like:

[DllImport("user32.dll", CharSet = CharSet.Auto)]
static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, IntPtr wParam, IntPtr lParam);

const UInt32 WM_CHAR = 0x0102;
const int VK_Q = 0x51; // taken from http://msdn.microsoft.com/en-us/library/dd375731(v=vs.85).aspx

SendMessage(handleToTheInputForm, WM_CHAR, VK_Q, 1);

answered Jun 18, 2011 at 8:42

skink

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CResults · Accepted Answer · 2011-06-18 07:51:02Z

1

You will need to get a handle on the other application's window so that you can bring it to focus and reliably send your keystrokes to it,

Have a look at this tutorial

http://www.codeproject.com/KB/cs/SendKeys.aspx

answered Jun 18, 2011 at 7:51

CResults

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1 Comment

TreantBG Over a year ago

Yes i do that now but im saying again mistakes happen. i don't want my application to be dependent on that what application is active...

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