Set a Value Question

[droberson]

In my code I want to add an action where using the special object I use "Set a Global Value"

I am then allowed to use "Get Value from Object"

In other words I am setting Global Value A to a value I get from another object.

In my case the other object is an activex VideoXPro. But I want to get DetectMotion which returns a number. However MMF see's DetectMotion as an Event and will not allow me to use it.

Anyway around this or a extension that could get around this?

[LB]

When you are in the expression editor (where you type in numbers ans strings) you can click on 'retrieve data from another obejct'.

Maybe DetectMotion starts the detector and you can then retrieve the value while it is detecting. :\

[droberson]

No, in VB code it would work something like:

set X to VideoXPro.DetectMotion (where X is of type integer.)

MMF's activex extension treats DetectMotion as an action so
will not see it as an expression.

[LB]

What happens if you use the action DetectMotion?

[droberson]

Nothing it is define as a method.

I should be able to see if 30% of the pixels have changed which what DetectMotion returns.

Here is from the documentation:

Detect changes in video frames


Syntax
Function DetectMotion As Long

Return value
Long

Remarks
The DetectMotion method returns the number between 0 and 100, reflecting the change detected in front of the camera.

Call this method every second or two and check the result it returns. If the result is greater than 30, there is something moving in front of the camera. Experiment with this to see which value to use.

Example
Sub Timer1_OnTimer()
If VideoCapX1.DetectMotion>30 then
Beep
MsgBox “Where are you going?”
End If
End Sub