1 reply to this topic

[Dero]

Hi, I need to take screenshots of some windows that are fully covered by my application's window. That is a relatively easy task to achieve using WINAPI's PrintWindow() function. The problem is that I need to ship these screenshots to the JavaScript/AJAX application running on the same machine in the web browser window.

My plan is:

• Using C/C++ write a DLL that does the dirty screenshotting (Win32 API) stuff.
  
• Link it to a signed JavaApplet using JNLPAppletLauncher (https://applet-launcher.dev.java.net/)
  
• Call the C function from within the JavaApplication and retrieve a bitmap.
  
• Send the bitmap to a remote server, do some magic there, share it with an AJAX application, ...

I'm a skilled web developer, but the first point goes far beyond my experience. So I would greatly appreciate an answer to any of the following questions:

• How do I compile a DLL that would do what I want on every (even absolutely fresh) installation of Windows XP and newer? I can't/don't want to redistribute any files other that this single DLL.
  
• What language do I need to use? I assume pure C is the best choice here?
  
• Are there any tutorials that might point me to a right track?

Thank you very much!

[dargueta]

Wait...Java or JavaScript? Those are two completely different things.