Delphi and C# (ActiveX) sample code. You shout start video preview or capture to any format before DV commands usage.
VideoCapture1.DV_SendCommand(DV_PLAY);
VideoCapture1.DV_SendCommand(VisioForge_Video_Capture_5.TxVFDVCommand.DV_PLAY);
VideoCapture1.DV_SendCommand(DV_PAUSE);
VideoCapture1.DV_SendCommand(VisioForge_Video_Capture_5.TxVFDVCommand.DV_PAUSE);
VideoCapture1.DV_SendCommand(DV_STOP);
VideoCapture1.DV_SendCommand(VisioForge_Video_Capture_5.TxVFDVCommand.DV_STOP);
VideoCapture1.DV_SendCommand(DV_FF);
VideoCapture1.DV_SendCommand(VisioForge_Video_Capture_5.TxVFDVCommand.DV_FF);
VideoCapture1.DV_SendCommand(DV_REW);
VideoCapture1.DV_SendCommand(VisioForge_Video_Capture_5.TxVFDVCommand.DV_REW);
VideoCapture1.DV_SendCommand(DV_STEP_FW);
VideoCapture1.DV_SendCommand(VisioForge_Video_Capture_5.TxVFDVCommand.DV_STEP_FW);
VideoCapture1.DV_SendCommand(DV_STEP_REV);
VideoCapture1.DV_SendCommand(VisioForge_Video_Capture_5.TxVFDVCommand.DV_STEP_REV);