Accusoft ImagXpress 12
DIBGetPixel Method
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IPPixelX

The x location of the pixel within the image.

Valid values are greater than or equal to zero.

IPPixelY

The y location of the pixel within the image.

Valid values are greater than or equal to zero.

AccusoftImagXpress12 ActiveX DLL > ImagXpress Object : DIBGetPixel Method

Glossary Item Box

Description

Gets a pixel value from the current DIB.

Syntax

Visual Basic
Public Function DIBGetPixel( _
   ByVal IPPixelX As Long, _
   ByVal IPPixelY As Long _
) As OLE_COLOR

Parameters

IPPixelX

The x location of the pixel within the image.

Valid values are greater than or equal to zero.

IPPixelY

The y location of the pixel within the image.

Valid values are greater than or equal to zero.

Remarks

If the current DIB is an 8-bit, 4-bit or 1-bit DIB, the returned long value contains the palette index of the pixel. If the current DIB is a 24-bit or 16-bit DIB, the returned long value contains RGB color data formatted as follows:

BBGGRR

where BB, GG and RR are 8-bit byte values.

Example

The following Visual Basic example code illustrates how to extract RGB values from the DIBGetPixel value.
VB Example using DibGetPixel (Visual Basic)Copy Code
value = ImagXpress1.DIBGetPixel(10,10)

If ( ImagXpress1.IBPP <= 8 ) Then
    thisColor = ImagXpress1.DIBGetPalIndex(value)
Else
    thisColor = value
End If

red = thisColor And 255
green = Int(thisColor / 256) And 255
blue = Int(thisColor / 65536) And 255

See Also

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