Inserting text to Acrobat PDF document, not able to create PDEText.

Question

Hi ,
I have created a plugin for Acrobat, On press of MyPlugin's 'Insert' button it has to add the text to the document.
Eg: If there is a Active PDF document, which contains a text "Hello" in it. I want to insert "World" (i.e, the document should have "Hello World") when i click 'Insert' button.
I am writing the below function for this:
static void InsertCitationText(PDDoc activePDDoc,PDPage pdPage , int pgNum , int pgOffset)
      PDEContent volatile pdecontent = NULL;
      PDPage pdPage = PDDocAcquirePage (activePDDoc, pgNum);
      pdecontent = PDPageAcquirePDEContent (pdPage, gExtensionID);
    Here I have to create PDEText pdeText and assign "World" to it. How do i do this??
     I tried to do this in TextCreate function by looking into the sample plugin snippets but its not creating the text , when i debug and see the value value of 'pdeText' its giving,  "pdeText not found".
           PDEText pdeText = TextCreate();
      PDEContentAddElem(pdecontent, kPDEAfterLast, (reinterpret_cast<PDEElement>(pdeText)));
      /* Put the contents back in the page */
      PDPageSetPDEContent(pdPage, gExtensionID);
      /* Clean up */
      PDPageReleasePDEContent(pdPage, gExtensionID);
static PDEText TextCreate()
            PDSysFont sysFont=NULL; /* Used by PDEFont creation */
            PDEFont pdeFont=NULL; /* Reference to a font used on a page */
            PDEFontAttrs pdeFontAttrs; /* Font attributes */
            ASFixedMatrix textMatrix; /* Transformation matrix for text */
            PDEColorSpace pdeColorSpace; /* ColorSpace */
            PDEGraphicState gState; /* Graphic state to apply to operation */
            // Create a PDEText object
            PDEText pdeText = PDETextCreate();
            // Text to write to the PDF
            char *Title = "World";
            // Get system font
            sysFont = PDFindSysFont(&pdeFontAttrs, sizeof(PDEFontAttrs), 0);
            // Initialize the font descriptor then create the font reference.
            memset(&pdeFontAttrs, 0, sizeof(pdeFontAttrs));
            // Find the matching system font.
            pdeFontAttrs.name = ASAtomFromString("Verdana");
            pdeFontAttrs.type = ASAtomFromString("Type1");
            //Get system font
            sysFont = PDFindSysFont(&pdeFontAttrs,sizeof(pdeFontAttrs),0);
            pdeFont = PDEFontCreateFromSysFont(sysFont, kPDEFontDoNotEmbed);
            // Create a DEGraphicState object and set its attributes
pdeColorSpace = PDEColorSpaceCreateFromName(ASAtomFromString("DeviceGray"));
            memset(&gState, 0, sizeof(PDEGraphicState));
gState.strokeColorSpec.space = gState.fillColorSpec.space = pdeColorSpace;
            gState.miterLimit = fixedTen;
            gState.flatness = fixedOne;
            gState.lineWidth = fixedOne;
            // Create an ASFixedMatrix object
            memset(&textMatrix, 0, sizeof(textMatrix));
            textMatrix.a = Int16ToFixed(24);
            textMatrix.d = Int16ToFixed(24);
            textMatrix.h = Int16ToFixed(1*72);
            textMatrix.v = Int16ToFixed(2*72);
            //Create a PDEText Object
            pdeText =  PDETextCreate();
PDETextAdd (pdeText, kPDETextRun, 0,(ASUns8 *)Title, strlen(Title), pdeFont, &gState,
            sizeof(gState), NULL, 0, &textMatrix, NULL);
            PDERelease ((PDEObject) pdeColorSpace);
            PDERelease ((PDEObject) pdeFont);
            return pdeText;
Is there anyway i can add the "World" (as PDEElement) to document so that i can use in this function "PDEContentAddElem(pdecontent, kPDEAfterLast, (reinterpret_cast<PDEElement>(pdeText)));"  ???
Or
Should i use the above 'TextCreate()' huge function to create PDEText(PDEElement). If i have to use this method why the PDEText is not getting created? Am i missing something in the above function ??
Please someone help me out, Thanks in advance.
Regards,
Chetan.

Answer 1

Hi Irosenth,
I will give a try for this, we must try to certain extent who knows we may Succeed. We must noe give-up easily.
You have not said this is impossible, but you say this is difficult. Rite ??
If you give me support, i dont think it would be difficult.
First i will try to insert a text in a blank page.This is possible rite ??
I saw a discussion in this forum, http://forums.adobe.com/message/2092443#2092443 , this is 2 years old. This guy has inserted the text into PDF document.
I refered this link and try to insert a text in Active PDF document but text is not getting inserted into it.
Please let me know what i am making wrong in the below function,
static void InsertCitationText(PDDoc activePDDoc, int pgNum , int pgOffset)
      PDEContent volatile pdecontent = NULL;
      PDPage pdPage = PDDocAcquirePage (activePDDoc, pgNum);
      pdecontent = PDPageAcquirePDEContent (pdPage, gExtensionID);
      PDEText pdeText = TextCreate();
      PDEContentAddElem(pdecontent, kPDEAfterLast, (reinterpret_cast<PDEElement>(pdeText)));
      /* Put the contents back in the page */
      PDPageSetPDEContent(pdPage, gExtensionID);
      /* Clean up */
      PDPageReleasePDEContent(pdPage, gExtensionID);
TextCreate() function is same as the one which i mentioned in this discussion. Please let me what i am making wrong in that function aswell. Its not creating the specified "World" pdeText. Please help me out for this. Thanks in advance.
Regards,
Chetan.