Step 1: To install the Video Chat ActiveX Control, begin by launching the setup file (videochatsetup.exe). Select the desired installation folder for the Video Chat ActiveX and continue with the installation on your development computer. 

Step 2: Started Delphi, the next step is to install Video Chat ActiveX (it include Video Chat Sender and Video Chat Receiver) in Delphi. Select Component/Import ActiveX Control/Video Chat Sender ActiveX Control. Click Install...
 

Step 3: Select Component/Import ActiveX Control/Video Chat Receiver ActiveX Control. Click Install...

Step 4: Select ActiveX Tab, you will see Video Chat Sender and Receiver ActiveX Control's icon.
 

Step 5: Drag Video Chat Sender ActiveX Control to your form and drag Video Chat Sender ActiveX Control to your form. Add two button on form

In button1 click event, add following code.

VideoChatSender1.VideoDevice:=0;

VideoChatSender1.AudioDevice:=0;

VideoChatSender1.VideoFormat := 2;

VideoChatSender1.FrameRate :=25;

VideoChatSender1.VideoBitrate := 128000;

VideoChatSender1.AudioComplexity :=0;

VideoChatSender1.AudioQuality := 1;

VideoChatSender1.SendVideoStream :=true;

VideoChatSender1.SendAudioStream :=true;

 Step 6: In button2 click event , add following code

VideoChatReceiver1.ReceiveAudioStream:=true;

VideoChatReceiver1.ReceiveVideoStream := true;

VideoChatReceiver1.Listen("127.0.0.1",7000);