how to use PXCV_Lib36.PXCV_CheckPassword

[kidzopa]

if I use the following code which worked in earlier versions, I get a warning with the comparison
res == PXCV_Error.PS_ERR_DocEncrypted stating cannot compare an int to a constant out of range
I looked at the latest PXCView example and the password code is gone

Code: Select all

       
 private bool OpenPDF()
        {
            int res = 0;
            if (DialogResult.OK != openDlg.ShowDialog(this))
                return false;

           res = PXCV_Lib36.PXCV_Init(out m_Doc, "myCode", "mydev");
            if (PXCV_Error.IS_DS_FAILED(res))
	PXCV_Error.ShowDSErrorString(this, res);
            res = PXCV_Lib36.PXCV_ReadDocumentW(m_Doc, openDlg.FileName, 0);
            if (res == PXCV_Error.PS_ERR_DocEncrypted)
            {
                frmPassword dlgPassword = new frmPassword();
                bool bCancel = false;
                do
                {
                    if (DialogResult.OK != dlgPassword.ShowDialog(this))
                        bCancel = true;
                    else
                    {
                        string password = dlgPassword.GetPassword();
                        byte[] bytepass = PXCV_Helper.StringToBytes(password);
                        res = PXCV_Lib36.PXCV_CheckPassword(m_Doc, bytepass, bytepass.Length);
                        if (PXCV_Error.IS_DS_FAILED(res))
                            break;
                    }
                }
                while (!bCancel);
                if (PXCV_Error.IS_DS_SUCCESSFUL(res))
                {
                    res = PXCV_Lib36.PXCV_FinishReadDocument(m_Doc, 0);
                }
            }
            if (PXCV_Error.IS_DS_FAILED(res))
            {
                ClosePDF();
                PXCV_Error.ShowDSErrorString(this, res);
                return false;
            }
            return true;
        }

but if I use this code I get it to work

Code: Select all

byte[] bytepass = PXCV_Helper.StringToBytes("myPwd"); 
			res = PXCV_Lib36.PXCV_ReadDocumentW(m_Doc, openDlg.FileName, 0);
			res = PXCV_Lib36.PXCV_CheckPassword(m_Doc, bytepass, bytepass.Length);
			if (PXCV_Error.IS_DS_SUCCESSFUL(res))
			{
				res = PXCV_Lib36.PXCV_FinishReadDocument(m_Doc, 0);			}

[Corwin - Tracker Sup]

Hello,

If you are using latest version of PXCView then you should change old constant

Code: Select all

public const uint PS_ERR_DocEncrypted = 0x820f27ad;

to new:

Code: Select all

public const int PS_ERR_DocEncrypted = unchecked((int)0x821427ad);

Also replace this code:

Code: Select all

string password = dlgPassword.GetPassword();
byte[] bytepass = PXCV_Helper.StringToBytes(password);
res = PXCV_Lib36.PXCV_CheckPassword(m_Doc, bytepass, bytepass.Length);
if (PXCV_Error.IS_DS_FAILED(res))
    break;

by this:

Code: Select all

string password = dlgPassword.GetPassword();
byte[] bytepass = PXCV_Helper.StringToBytes(password);
res = PXCV_Lib36.PXCV_CheckPassword(m_Doc, bytepass, bytepass.Length);
if (PXCV_Error.IS_DS_SUCCESSFUL(res))
    break;

HTH.

[kpkemp]

From what I see the samples use the uint values

I might suggest that the samples be updated it would save us all a lot of irritation

[Corwin - Tracker Sup]

Hi kpkemp,

In next build constants for error codes will be updated.