Beiträge von softtouch

Zitat von wpsupport

Hi,

You can use the command
COMPDF_PageSelectionGet = 247

With a parameter <0 it returns the count of selected pages, otherwise it returns the state of the give page:

0 = not selected
1 = selected
-1= does not exist (page nr too large)

Also note:

Code

COMPDF_PageSelectionGet   = 247; // Checks if a page is selected. Pass zero based page number. Result = 1, if selected
  COMPDF_PageSelectionClear = 248; // Removes previous selection
  COMPDF_PageSelectionAdd   = 249; // Select one additional page. Pass zero based page number. Result = count of selected pages.
  COMPDF_PageSelectionDel   = 250; // Removes Selection from Page. Pass zero based page number. Result = count of selected pages.
  COMPDF_PageSelectionToggle= 258; // Toggles state for a certain page. Pass zero based page number. Result = count of selected pages.
  COMPDF_PageSelectionInvert= 251; // Inverts Selection. Result = count of selected pages.
  COMPDF_PageSelectionSaveRestore  = 259; // Saves the selection markers to a buffer and clears the selection. With Param=1 it restores the buffer

Regards,

Julian

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Thanks, this helped me. I can not successful split the pdf document as I wanted it.

Zitat von wpsupport

Hi,

currently the best approach would be to create a file and load the file into a stream when using .NET.

The Delphi VCL has a Plus.SaveSelectionToStream method, though.

Julian

Yes, I found it in my plus version. And it works! Thanks!

For monochrome, I use pdf.CommandStr(COMPDF_MakePNGMonochrome,s)

For 256 colors, I use pdf.CommandStr(COMPDF_MakePNG,s)

and for true color, I use pdf.CommandStr(COMPDF_MakePNGRGB,s);

But whatever I use, the colored PDF document comes out always with a black background after exporting, so text cannot be seen...

That does not answer his question.
He want to save to a STREAM, not a file (Exact what I also want...)

I need to know the number of the selected page (not the current page, but the page number of the page the user has selected with the mouse).

I also need to know how I can select pages by code.
This is for a split function, which shall split a pdf into 2 pieces.

Any support here?

1. When exporting a page as PNG, the png background is completely black all the time.
I tried setting the page color, but it does not affect the PNG export.
How do I get the PNG to have a white or transparent background?

2. JPG works just fine, except I do not see any difference in the JPG when setting compression to 0 or to 255... there should be a big difference.
What is the range of the compression? 0-255 or 0% to 100%?

I want to export only the selected pages as JPG, but could not find any way to figure out which pages are selected!

I can export the current page, or all pages, but how to export just the selected pages (multiselect is enabled)?

If I enable the property panel, I have printer setup there, but also "about viewer", which shows something abouyt the viewer. I do not lick that, I did not purchase the component to advertise for your company, I want my own about there.

Is there any way to increase the width of the bookmark treeview? Its too small in width, and I like to set it to a value that the user does not always have to resize the treeview...