checkbox values

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   I am processing pdf document from different origins, programmatically filling out form field values. The problem I have is filling out checkboxes.  Possible variants that I came across are "1/0", or "Off/On", or "Yes/No". 
My question is:
how to find what values makes checkbox field being "check" and "uncheck"?

There is an API function GetFormFieldDefaultValue that in case of "Off/On" will return "Off", but it is unclear if "DefaultValue" for checkbox is a value for "unchecked" or "checked" checkbox? 

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toran Members Profile Find Members Posts Beginner Joined: 20 Feb 12 Status: Offline Points: 14	Post Options Post Reply Quote toran Report Post Thanks(0) Quote Reply Topic: checkbox values Posted: 09 Mar 13 at 1:38AM
	I am processing pdf document from different origins, programmatically filling out form field values. The problem I have is filling out checkboxes. Possible variants that I came across are "1/0", or "Off/On", or "Yes/No". My question is: how to find what values makes checkbox field being "check" and "uncheck"? There is an API function GetFormFieldDefaultValue that in case of "Off/On" will return "Off", but it is unclear if "DefaultValue" for checkbox is a value for "unchecked" or "checked" checkbox?

Chumly Members Profile Find Members Posts Beginner Joined: 05 Aug 12 Status: Offline Points: 4	Post Options Post Reply Quote Chumly Report Post Thanks(0) Quote Reply Posted: 28 Apr 13 at 3:26PM
	Hello, The PDF Spec seems to show that the output can be whatever the designer of the form wishes to use. There is no set value. You will need to either control the source pdf files, or code for each variant you find. :(

AndrewC Members Profile Find Members Posts Moderator Group Joined: 08 Dec 10 Location: Geelong, Aust Status: Offline Points: 841	Post Options Post Reply Quote AndrewC Report Post Thanks(0) Quote Reply Posted: 29 Apr 13 at 2:19AM
	The SubNames from QPL can be used to determine the correct values. According to the PDF specification "Off" should always be the off state. Here is some code that attempts to turn on all Checkboxes on a form. You can modify this code to meet your needs. QP.LoadFromFile("formfields.pdf", ""); for (int i = 1; i < QP.FormFieldCount(); i++) { int fType = QP.GetFormFieldType(i); string fName = QP.GetFormFieldTitle(i); int sc; switch (fType) { case 1: // Text QP.SetFormFieldValue(i, "ABDCEF"); break; case 3: case 4: case 5: sc = QP.GetFormFieldSubCount(i); for (int j = 1; j <= QP.GetFormFieldSubCount(i); j++) { string value = QP.GetFormFieldSubName(i, j); if (value != "Off") QP.SetFormFieldValue(i, value); } break; case 7: // Parent break; } }