GetF7Info

Description

Returns the array of long values containing the information releated to Format 7 (partial scan) video modes .


Syntax

[VB]
Value=objActiveDcam.GetF7Info()

[C/C++]
HRESULT GetF7Info( VARIANT* pInfo );


Data Types [VB]


Return value: Variant (Array)


Parameters [C/C++]

pInfo [out,retval]

Pointer to the SAFEARRAY containing the following long values in the listed order:

- maximum height of the partial scan in pixels

- maximum width of the partial scan in pixels

- minimum interval at which partial scan size can be changed horizontally

- minimum interval at which partial scan size can be changed vertically

- minimum interval at which the offset of partial scan can be changed horizontally

- minimum interval at which the offset of partial scan can be changed vertically

- maximum number of bytes per isochronous packet that can be set

- minimum number of bytes per isochronous packet and minimum interval at which it can be changed

Return Values

S_OK

Success

E_FAIL

Failure.

Example

This VB example retrieves a packet size information for the current F7 mode and initializes a scroll bar to conrol the packet size:

Private Sub Form_Load()
F7Info=ActiveDcam1.GetF7Info
HScroll1.Min = F7Info(6)
HScroll1.Max = F7Info(7)
End Sub

Private Sub HScroll1_Scroll()
ActiveDcam1.PacketSize = HScroll1.Value
End Sub


Remarks

Use this method to implement custom controls for partial scan size, offset and packet size.