How can I know if the user has signed or not?

Referring to this example, I need to force the user to sign. How can I test this?

include "FiveWin.ch"

function CaptureSignature()

local oDlg, oSig, lPaint := .F., cFile := Lower( "signature.bmp" ), hDC

DEFINE DIALOG oDlg TITLE "Signature" FROM 0, 0 TO 150, 350 PIXEL

@ 15, 5 SAY oSig PROMPT "" SIZE 150, 40 PIXEL BORDER OF oDlg

@ 01, 5 BUTTON "Clear" SIZE 25, 10 PIXEL ACTION oSig:refresh(.t.) OF oDlg

@ 01, 60 BUTTON "Save" SIZE 25, 10 PIXEL OF odlg ;

  ACTION ( oSig:SaveToBmp( cFile ), oDlg:End() )

oSig:lWantClick := .T.

oSig:bLButtonUp := { | x, y, z | DoDraw( hDC, y+1, x+1, lPaint := .F. ) }

oSig:bMMoved := { | x, y, z | DoDraw( hDC, y, x , lPaint ) }

oSig:bLClicked := { | x, y, z | DoDraw( hDC, y, x, lPaint := .T. ) }

ACTIVATE DIALOG oDlg CENTER ;

  ON INIT ( hDC := GetDC( oSig:hWnd ) ) ;

  VALID ( ReleaseDC( oSig:hWnd, hDC ), .T. )

return nil

static function DoDraw( hDc, x, y, lPaint )

if ! lPaint

  MoveTo( hDC, x, y )

else

  LineTo( hDc, x, y )

endIf

return nil

hi,

MGA wrote:How can I know if the user has signed or not?

Sample \fwh\samples\signatur.prg "just" save a BMP but did not "recognize" it

have a look at \fwh\samples\msink.prg
when use MENUITEM "Text" you got a MsgInfo() but a GET would be better to present Result

Jimmy:

I need to validate if the user signed the document.

referring to this example:

@ 15, 5 SAY oSig PROMPT "" SIZE 150, 40 PIXEL BORDER OF oDlg

Objeto:

oSig

i need something like this, example:

function Button_ValidSegnatur(oSig)

if Empty(oSig:cCaption)

MsgStop("It is mandatory to sign the document.")

return .f.

endif

return .t.

Estimado MGA,

Solo tienes que consultar la variable lSigned para saber si ha firmado o no:

Thanks :D

hi,

MGA wrote:I need to validate if the user signed the document.

using your Sample i can "just" Paint 1 x Pixel as Signature and press "Save" ... :roll:

msink.prg use Microsoft INK when made a Signature
it can "recognize" if and what User have "write"

when got Result of "recognition" you can "test" if Signature was made or not
when have Name of Receiver you can compare if Signature is right Name

p.s. if you need to "Save" Signature as Image i do have some "more" CODE (but HMG or Xbase++ Syntax)