AddImageFromHandleWithColorMask
IPDFDocument4 :: Images

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This method inserts a masked image from a handle into a PDF document's images collection and returns the index of the image.

Syntax

LONG AddImageFromHandleWithColorMask (
OLE_HANDLE handle,
OLE_COLOR rgbColor
)
Parameters
handle
Handle to an image object

rgbColor
Color which marks points that need to be transparent

Return value
Index of the new image

Remarks

The rgbColor parameter is a double word (4 bytes) value in the format 0x00BBGGRR. The low-order byte contains a value for the relative intensity of red; the second byte contains a value for green; and the third byte contains a value for blue. The high-order byte must be zero.

The return value is an image identifier in the document's images collection and can be used in GetImageHeight, GetImageResolution, GetImageWidth, TransformImage, ShowImage, DrawImage.

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Reference