IMVDemoSource

The IMVDemoSource Interface provides methods to configure the output video stream from the MV Demo Source filter.

Header file: IMVDemoSource.h
Interface definition language file: IMVDemoSource.idl
Typelib: MV DemoSource
Interface ID: IID_IMVDemoSource

Property IMVDemoSource::DrawMode

Declaration: Property Get/Put DrawMode As Long

Output video content.

Mode	Value	Description
MV_DEMO_MODE_LOGO	0	Shows a moving MontiVision or custom logo.
MV_DEMO_MODE_OBJECTS	1	Shows some coloured objects.
MV_DEMO_MODE_NUMBERED_FRAMES	3	Draws the current frame number into the video stream.
MV_DEMO_MODE_WHITE_NOISE	4	Draws white noise images into the video stream.
MV_DEMO_MODE_TV_TEST_IMAGE	5	Shows a TV test image.
MV_DEMO_MODE_RESOLUTION_TEST	6	Shows a resolution test chart.

Prototype:

HRESULT put_DrawMode(LONG Mode);
HRESULT get_DrawMode(LONG* Mode);

Property IMVDemoSource::FrameRate

Declaration: Property Get/Put FrameRate As Double

Output video frame rate.

Prototype:

HRESULT put_FrameRate(DOUBLE Rate);
HRESULT get_FrameRate(DOUBLE* Rate);

Property IMVDemoSource::ObjectSet

Declaration: Property Get/Put ObjectSet As Long

Selects the object set. Valid values from 0 to 3.

Prototype:

HRESULT put_ObjectSet(LONG Set);
HRESULT get_ObjectSet(LONG* Set);