DynaPDF Manual - Page 785

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Function Reference
Page 785 of 839
The function sets two callback functions which can be used to control a progress bar. This function is
absent in the Visual Basic interface because this interface uses events instead of callback functions.
The progress callback functions are called by these functions:
CloseFile(), CloseFileEx(), and so on
The parameter Data is a user defined pointer that is passed unchanged to the callback functions.
The parameter InitProgress defines a callback function that is called before the progress callback
function is called the first time. The parameters of this callback function can be used to initialize a
progress bar. The parameter ProgType of the initialization callback function defines the current
process; this can be either importing, writing, or converting a page.
Other operations do not call the progress callback functions because most operations are too fast as
if they could be used to display the current progress.
The parameter MaxCount defines how often the progress callback function will be called. To disable
the progress callback functions set the parameters InitProgress and Progress to NULL.
Return values of the progress callback function:
The return value of the progress callback function must be 0, any other return value breaks
processing. All functions, except ImportPDFFile(), release the PDF file in memory if a non-zero
value will be returned.
Return values:
If the function succeeds the return value is 1. If the function fails the return value is 0.
LBOOL pdfSetRenderingIntent(
const PPDF* IPDF,
// Instance pointer
SI32 ImgHandle,
// Image handle
TRenderingIntent Value) // Rendering intent
Set function sets the rendering intent of an image. The rendering intent describes how colors should
be interpreted.
The parameter ImgHandle must be a valid image handle that was returned by InsertImage() or
InsertImageEx(). Imported images returned by ParseContent(), for example, can be changed too.
Return values:
If the function succeeds the return value is 1. If the function fails the return value is 0.

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