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Adds image (JPEG, TIFF, PNG) with chroma-key mask to the PDF file. Before you draw the image, you must add image to the PDF file first.
Public Function PDFAddImageFromFile2( _
ByVal strImageFile As String ,_
ByVal iRedMask As Integer ,_
ByVal iGreenMask As Integer ,_
ByVal iBlueMask As Integer ,_
ByVal iThreshold As Integer ,_
) As long
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Parameter
strImageFile
the path of image file. It support JPEG, TIFF, PNG files.
iRedMask
the red RGB value of color that should be masked.
iGreenMask
the green RGB value of color that should be masked.
iBlueMask
the blue RGB value of color that should be masked.
iThreshold
threshold colors are masked that are in the range [(r-threshold, r+threshold),(g-threshold, g+threshold),(b-threshold, b+threshold)], default is 0.
Return Value
Return the image ID.
Example
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Visual Basic Syntax
ImageViewer1.PDFInitAnnotation
imageId = ImageViewer1.PDFAddImageFromFile2("C:\myfolder\sample.png",0,0,0,0)
If imageId <> -1 Then
ImageViewer1.PDFDrawImage 0, imageId, 50000, 10000, 50000, 50000
ImageViewer1.PDFDrawImage 0, imageId, 50000, 60000, 32000, 24000
End If
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