I am developing a Remote Desktop application Like Tight VNC But the Problem is the end that broadcasts the Screenshots doesn't have a Public IP However the recieving end have.I was planing to use TightVNC Source Code. So is it feasible to use TightVNC Source for this purpouse as I dont see any such option in Tight VNC where the Sending end doesn't have Public IP.
VNC allows for the Viewer / Client to start in "Listen-Mode" and wait for a server to connect. This is the reverse connection you speak of. Some tools provide a VNC Server contained in a Windows Exe that connects to a definded Viewer on startup, it allows Remote Support behind a home router. See the docs for more Infos (look for "Add new client" on Server Tray Icon)
Clarification:
When I want to use Tight VNC to Remote your PC (See your Desktop), I would normally do:
Connect my Client to your Server on your Public IP
Reverse VNC:
You Add my Public IP to your Server wich connects to my Client