DynaPDF Manual - Page 577

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Function Reference
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PageLink
Syntax:
SI32 pdfPageLink(
const PPDF* IPDF, // Instance pointer
double PosX,
// X-Coordinate of bounding rectangle
double PosY,
// Y-Coordinate of bounding rectangle
double Width,
// Width of bounding rectangle
double Height,
// Height of bounding rectangle
UI32 DestPage)
// Destination page
The function adds a page link to the current open page. The parameter DestPage specifies the
destination page which should be opened (the page number). The function does not check whether
the destination page exists; it can be created later. If the destination page does not exist when the
document is closed it will be set to the first page.
If the coordinate system is bottom-up the point PosX, PosY defines the lower left corner of the
bounding rectangle. If the coordinate system is top-down it defines the upper left corner.
The border of the link annotation is drawn by using the current line width, stroke color and line
dash pattern. If the link should appear without a border set the line width to zero beforehand.
When clicking on a link annotation the rectangle is highlighted, that is a simple visual effect. Several
highlight modes are supported, see SetLinkHighlightMode() for further information.
Remarks:
The destination page is always opened at the top corner. More precise destinations can be created
with the function PageLinkEx(). Page links can also be used to execute an action. The destination
page is ignored in the latter case, the annotation works then like a button.
Return values:
If the function succeeds the return value is the annotation handle, a value greater or equal zero. If
the function fails the return value is a negative error code.
 

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