I need help - I can help - DPLFindImages on Only One page

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DPLFindImages on Only One page

Printed From: Debenu Quick PDF Library - PDF SDK Community Forum
Category: For Users of the Library
Forum Name: I need help - I can help
Forum Description: Problems and solutions while programming with the Debenu Quick PDF Library and Debenu PDF Viewer SDK
URL: http://www.quickpdf.org/forum/forum_posts.asp?TID=2966
Printed Date: 04 May 24 at 12:54PM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com

Topic: DPLFindImages on Only One page

Posted By: pinya
Subject: DPLFindImages on Only One page
Date Posted: 07 Sep 14 at 12:03PM

Hello,

I need to enumerate images on only one page. How can I do it?

Replies:

Posted By: AndrewC
Date Posted: 15 Sep 14 at 3:13PM

pinya,

I have modified the code sample to load only page 1 but the loop is commented out that processes all pages.

QP.LoadFromFile("mypdf.pdf", "");

//for (int p=1;p<=QP.PageCount();p++) // Process all pages.

int p = 1; // Process only page 1.

{

QP.SelectPage(p);

int id = QP.GetPageImageList(0);

int count = QP.GetImageListCount(id);

for (int i = 1; i <= count; i++)

{

int type = QP.GetImageListItemIntProperty(id, i, 400);

int width = QP.GetImageListItemIntProperty(id, i, 401);

int height = QP.GetImageListItemIntProperty(id, i, 402);

int bpp = QP.GetImageListItemIntProperty(id, i, 403);

int cs = QP.GetImageListItemIntProperty(id, i, 404);

double x1 = QP.GetImageListItemDblProperty(id, i, 501);

double y1 = QP.GetImageListItemDblProperty(id, i, 502);

double x2 = QP.GetImageListItemDblProperty(id, i, 505);

double y2 = QP.GetImageListItemDblProperty(id, i, 506);

double DPIx = width / (x2-x1) * 72.0;

switch (type)

{

case 1:

QP.SaveImageListItemDataToFile(id, i, 0, "temp_p" + p.ToString() + "i_" + i.ToString() + ".jpg");

break;

case 2:

QP.SaveImageListItemDataToFile(id, i, 0, "temp_p" + p.ToString() + "i_" + i.ToString() + ".bmp");

break;

case 3:

QP.SaveImageListItemDataToFile(id, i, 0, "temp_p" + p.ToString() + "i_" + i.ToString() + ".tif");

break;

}

//MessageBox.Show(type.ToString());

}

Andrew.