MV GDI Overlay DirectShow Filter
The MontiVision GDI Overlay filter
overlays a GDI surface onto the video stream. Either a colour for
the transparent background is specified or a constant alpha value
for the whole image is used. If a background colour is specified,
every pixel with this colour is set as transparent. If a constant
alpha value is used, the output video is calculated as follows:
Output = Input * Alpha + Overlay * (255-Alpha).
This MontiVision DirectShow Filter is used in combination with
the MontiVision
Smart Control in the LiveDraw Sample
Application.
| File: |
GDIOverlay.ax |
| CLSID: |
CLSID_MVGDIOverlay |
Interface
IMVGDIOverlay
IMVHistogram
IMVHistogram2
IMVHistogram3
IMVFilterData
IMVAbout
IMVFilterInfo
Supported COM Events
The filter |