Comments by Burak Ozdiken (Top 18 by date)

YES

I've done enough explanations, you can do some research yourself. I suggest you consult a book about WIN32 API.

The HT_CAPTION(wParam value of the SendMessage API) and WM_NCLBUTTONDOWN(Windows message constants) are our symbolic constants.
To use a win32API for your application, you need to add the 'DllImport' attribute at top of the code. So you can call it from your method. Also you need to pass the parameter of the character set and which *.dll will be used for this API.

OnMouseDown: When you pressed the left mouse button on the panel or form, this event occurs.

If you'll use this technique with a panel on the form, you'll call the same method in the Panel mouse event. For example;

if (rct.Contains(e.Location))
{
ReleaseCapture();
SendMessage(panel1.Parent.Handle, WM_NCLBUTTONDOWN, HT_CAPTION, 0);
}

That's it.

Not only capture screen, if you look at the code samples not articles, you can find something useful for you. If you want to draw a string on a direct-x game, you need to use the direct-x library for your projects. You can not achieve this using the others. ( GDI, GDI+ etc. )

Ok, I will send it as soon as. When you receive my e-mail, please let me know.

I've created an example application for you. If you give me a contact address, I'll share it with you.

if you bring your osd window to the foreground, it will not be a problem :)

look at this it will help you, http://msdn.microsoft.com/en-us/library/bb909887.aspx and,

http://msdn.microsoft.com/en-us/library/bb909849.aspx

maybe this link can help you.

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

How do you capture the pressed key?

duybk283 says that; I want to create an application using Hook, will run in background. Maybe this application will be inactive. In this case, you can not handle a key from your application. The main idea, first of all handle a virtual key and after draw a string on a application.