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 ; opens a video compression dialog
SendMessage ,WM_CAP_DLG_VIDEOCOMPRESSION, 0, 0, , ahk_id %capHwnd%

BeginCapature:
    VarSetCapacity(CAP_PARAMS, 96) ;DATA STRUCTURE
     SendMessage, WM_CAP_GET_SEQUENCE_SETUP, 92,&CAP_PARAMS,,  ahk_id %capHwnd% ;load the structure into CAP_PARAMS
   
     dwRequestMicroSecPerFrame = (1 * (10 ^ 6)) / 30 ; 30 Frames per second
   NumPut(dwRequestMicroSecPerFrame, CAP_PARAMS , 0,"Int") ; save into first long in CAP_PARAMS
 
   fMakeUserHitOKToCapture = FALSE
   NumPut(fMakeUserHitOKToCapture,CAP_PARAMS, 4,"Int") ; save into second long in CAP_PARAMS
    NumPut(0,CAP_PARAMS, 92,"Int") ;BOOL SINC TO AUDEO Y  makes sound sinc up with video
    SendMessage, WM_CAP_GET_SEQUENCE_SETUP, 92,&CAP_PARAMS,,  ahk_id %capHwnd% ;tell it do set up for capture
    SendMessage, WM_CAP_SEQUENCE, 0, 0, ,  ahk_id %capHwnd% ;Start Capturing
RETURN

SenToVID:
    imagefile = %A_Desktop%\A.AVI
      

    SendMessage, WM_CAP_FILE_SAVEAS , 0, &imagefile, , ahk_id %capHwnd%
return ;Copy video from swap file into a file

  WM_USER := 0x0400
  WM_CAP_START := WM_USER
  WM_CAP_GET_CAPSTREAMPTR := WM_CAP_START + 1

  WM_CAP_SET_CALLBACK_ERROR:= WM_CAP_START + 2
  WM_CAP_SET_CALLBACK_STATUS := WM_CAP_START + 3
  WM_CAP_SET_CALLBACK_YIELD := WM_CAP_START + 4
  WM_CAP_SET_CALLBACK_FRAME := WM_CAP_START + 5
  WM_CAP_SET_CALLBACK_VIDEOSTREAM := WM_CAP_START + 6
  WM_CAP_SET_CALLBACK_WAVESTREAM := WM_CAP_START + 7
  WM_CAP_GET_USER_DATA := WM_CAP_START + 8
  WM_CAP_SET_USER_DATA := WM_CAP_START + 9
   
  WM_CAP_DRIVER_CONNECT := WM_CAP_START + 10
  WM_CAP_DRIVER_DISCONNECT := WM_CAP_START + 11
  WM_CAP_DRIVER_GET_NAME := WM_CAP_START + 12
  WM_CAP_DRIVER_GET_VERSION := WM_CAP_START + 13
  WM_CAP_DRIVER_GET_CAPS := WM_CAP_START + 14

  WM_CAP_FILE_SET_CAPTURE_FILE := WM_CAP_START + 20
  WM_CAP_FILE_GET_CAPTURE_FILE := WM_CAP_START + 21
  WM_CAP_FILE_ALLOCATE := WM_CAP_START + 22
  WM_CAP_FILE_SAVEAS := WM_CAP_START + 23
  WM_CAP_FILE_SET_INFOCHUNK := WM_CAP_START + 24
  WM_CAP_FILE_SAVEDIB := WM_CAP_START + 25

  WM_CAP_EDIT_COPY := WM_CAP_START + 30

  WM_CAP_SET_AUDIOFORMAT := WM_CAP_START + 35
  WM_CAP_GET_AUDIOFORMAT := WM_CAP_START + 36

  WM_CAP_DLG_VIDEOFORMAT := WM_CAP_START + 41
  WM_CAP_DLG_VIDEOSOURCE := WM_CAP_START + 42
  WM_CAP_DLG_VIDEODISPLAY := WM_CAP_START + 43
  WM_CAP_GET_VIDEOFORMAT := WM_CAP_START + 44
  WM_CAP_SET_VIDEOFORMAT := WM_CAP_START + 45
  WM_CAP_DLG_VIDEOCOMPRESSION := WM_CAP_START + 46

  WM_CAP_SET_PREVIEW := WM_CAP_START + 50
  WM_CAP_SET_OVERLAY := WM_CAP_START + 51
  WM_CAP_SET_PREVIEWRATE := WM_CAP_START + 52
  WM_CAP_SET_SCALE := WM_CAP_START + 53
  WM_CAP_GET_STATUS := WM_CAP_START + 54
  WM_CAP_SET_SCROLL := WM_CAP_START + 55

  WM_CAP_GRAB_FRAME := WM_CAP_START + 60
  WM_CAP_GRAB_FRAME_NOSTOP := WM_CAP_START + 61

  WM_CAP_SEQUENCE := WM_CAP_START + 62
  WM_CAP_SEQUENCE_NOFILE := WM_CAP_START + 63
  WM_CAP_SET_SEQUENCE_SETUP := WM_CAP_START + 64
  WM_CAP_GET_SEQUENCE_SETUP := WM_CAP_START + 65
  WM_CAP_SET_MCI_DEVICE := WM_CAP_START + 66
  WM_CAP_GET_MCI_DEVICE := WM_CAP_START + 67
  WM_CAP_STOP := WM_CAP_START + 68
  WM_CAP_ABORT := WM_CAP_START + 69

  WM_CAP_SINGLE_FRAME_OPEN := WM_CAP_START + 70
  WM_CAP_SINGLE_FRAME_CLOSE := WM_CAP_START + 71
  WM_CAP_SINGLE_FRAME := WM_CAP_START + 72

  WM_CAP_PAL_OPEN := WM_CAP_START + 80
  WM_CAP_PAL_SAVE := WM_CAP_START + 81
  WM_CAP_PAL_PASTE := WM_CAP_START + 82
  WM_CAP_PAL_AUTOCREATE := WM_CAP_START + 83
  WM_CAP_PAL_MANUALCREATE := WM_CAP_START + 84

;/ Following added post VFW 1.1
 WM_CAP_SET_CALLBACK_CAPCONTROL := WM_CAP_START + 85

;'// Defines end of the message range
WM_CAP_END := WM_CAP_SET_CALLBACK_CAPCONTROL