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Content Streams and Optional Content Groups, Page layout

Version history

This function was introduced in Quick PDF Library version 8.14.




function TDebenuPDFLibrary1511.SetCapturedPageTransparencyGroup(CaptureID, CS, 
  Isolate, Knockout: Integer): Integer;


Function DebenuPDFLibrary1511.PDFLibrary::SetCapturedPageTransparencyGroup(
  CaptureID As Long, CS As Long, Isolate As Long, Knockout As Long) As Long


int DPLSetCapturedPageTransparencyGroup(int InstanceID, int CaptureID, int CS,
  int Isolate, int Knockout)


CaptureID The ID returned by the CapturePage function when a page was previously captured
CS The color space to use:
1 = RGB
2 = CMYK
Isolate This parameter has no effect and is reserved for future use. It should always be set to 0.
Knockout Indicates whether items added to the page are drawn over each other or "knocked out" of the page. In knockout mode a "hole" is made through existing objects on the page in the shape of the new object. The new object is then drawn against the background.
0 = Do not knockout
1 = Knockout

Return values

0 An error occurred
1 Success

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