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IBasicVideo2.GetVideoPaletteEntries

  • Artículo
 
Microsoft DirectShow 9.0

IBasicVideo2.GetVideoPaletteEntries

  • Note   This topic is deprecated. It applies to Visual Basic 6.0. DirectShow is not supported for Visual Basic .NET or C#.

The GetVideoPaletteEntries method retrieves the palette colors for the video.

Syntax

  objVideo
  .GetVideoPaletteEntries(
    StartIndex As Long, 
    Entries As Long, 
 ByRef Retrieved As Long, 
 ByRef Palette As Long)

Parameters

StartIndex

Start index for the palette.

Entries

Number of palette entries to retrieve.

Retrieved

Variable that receives the number of entries returned in Palette.

Palette

Variable that receives the palette entries. Set this parameter equal to the first element in an array of type Long. Treat the returned values as PALETTEENTRY structures.

Return Values

This method does not return a value.

Remarks

The method fails if no palette is available. This can occur if the bit depth of the display is too high.

Example Code

Dim Retrieved As Long, Palette(16) As Long
Dim blue As Byte, red As Byte, green As Byte
iVideo.GetVideoPaletteEntries 0, 16, Retrieved, Palette(0)
For i = 0 To Retrieved - 1
    red = Palette(i) And &HFF
    green = (Palette(i) And &HFF00&) / 256
    blue = (Palette(i) And &HFF0000) / 65536
Next

Requirements

Reference: Add a reference to ActiveMovie control type library.

Library: Quartz.dll.

See Also