Debenu Quick PDF Library - PDF SDK Community Forum : upgrade to 8 problem with renderpagetostring

upgrade to 8 problem with renderpagetostring : thanks.

Wed, 12 Oct 2011 09:11:59 +0000

Author: wjbons
Subject: 1985
Posted: 12 Oct 11 at 9:11AM

thanks.

upgrade to 8 problem with renderpagetostring : You are correct. We found this...

Wed, 05 Oct 2011 08:16:35 +0000

Author: AndrewC
Subject: 1985
Posted: 05 Oct 11 at 8:16AM

You are correct. We found this problem and corrected it in the 8.12 beta.

upgrade to 8 problem with renderpagetostring : When I change it to ansi,...

Tue, 04 Oct 2011 12:11:13 +0000

Author: wjbons
Subject: 1985
Posted: 04 Oct 11 at 12:11PM

When I change it to ansi, it works?

Is this now a bug, of do i have to check something???

    Public Function RenderPageToString(ByVal DPI As Integer, ByVal Page As Integer, _
        ByVal Options As Integer) As Byte()
      If (dll Is Nothing) Then
        Return New Byte(-1) {}
      Else
        Dim data As IntPtr = dll.QuickPDFRenderPageToString(instanceID, DPI, Page, Options)
        Dim size As Integer = dll.QuickPDFAnsiStringResultLength(instanceID)
        Dim result As Byte() = New Byte(size - 1) {}
        Marshal.Copy(data, result, 0, size)
        Return result
      End If
    End Function

upgrade to 8 problem with renderpagetostring : Hi,I am upgrading from 7.21...

Tue, 04 Oct 2011 10:46:35 +0000

Author: wjbons
Subject: 1985
Posted: 04 Oct 11 at 10:46AM

Hi,

I am upgrading from 7.21 to 8.11 and encounter a problem with creating images.

(I use a new license key).

I am using the LoadFromFile to load an existing pdf document.

The document is loaded and contains 192 pages.

Next I want to create an image from page 1 by using:

Dim Output() As Byte = PDF.RenderPageToString(96, 1, 5) 'pngThe output is empty.

The underlying function QuickPDFStringResultLength returns a size of 0???

Dim data As IntPtr = dll.QuickPDFRenderPageToString(instanceID, DPI, Page, Options)Dim size As Integer = dll.QuickPDFStringResultLength(instanceID)

Am I doing something wrong with this new version? Version 7.21 worked fine.

Local develop Situation:

Visual Studio 2010

Windows 7 64 bit.