PXCp_CheckPassword Function Usage

[DolphinMann]

I seem to be having some trouble using the PXCp_CheckPassword function.

I found some sample pages: https://help.pdf-xchange.com/DEV/de ... ckpassword

but everything I try to use the function it returns an error code indicating incorrect password. Even if I take a brand new PDF, and using the X-Change Viewer add a password to open such as "123456", I can then open it in X-Change viewer by typing that password, but I cannot open it via code by sending that password into the above function.

I'm sure it has something to do with my point conversion since I am using C#, but I can't tell what it is. The pointer seems correct to me when I debug and print/display.

"password" comes in as a string
PDFObject is a valid pointer to the PDF object

Code: Select all

                        byte[] bytePassword = System.Text.UnicodeEncoding.Unicode.GetBytes(password);
                        int passwordLength = bytePassword.Length;
                        fixed (byte* passPointer = bytePassword)
                        {
                            this.result = XCPro35_Defs.PXCp_CheckPassword(this.pdfObject, ref *passPointer, passwordLength);
                        }

[Ivan - Tracker Software]

For password "123456" you have to pass pointer to array of bytes with 6 bytes long:

Code: Select all

bytePassword[0] = 0x31;
bytePassword[1] = 0x32;
bytePassword[2] = 0x33;
bytePassword[3] = 0x34;
bytePassword[4] = 0x35;
bytePassword[5] = 0x36;

In your sample you will got at least 12 bytes (maybe 14 - I'm not so familiar with C#):

Code: Select all

bytePassword[0] = 0x31;
bytePassword[1] = 0x00;
bytePassword[2] = 0x32;
bytePassword[3] = 0x00;
bytePassword[4] = 0x33;
bytePassword[5] = 0x00;
bytePassword[6] = 0x34;
bytePassword[7] = 0x00;
bytePassword[8] = 0x35;
bytePassword[9] = 0x00;
bytePassword[10] = 0x36;
bytePassword[11] = 0x00;

[DolphinMann]

You are correct, my byte array ended up being 14 I think. I will play around with your suggestion.

Thank you.

[DolphinMann]

That worked.

[Will - Tracker Supp]