Kramer-electronics VP-790 Manual do Utilizador Página 34

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30 VP-790 Protocol - API Functions
2.20 Clock
2.20.1 byOsdAbsoluteClockSet
API index: 2938
Sets the absolute clock value for sampling the VGA input image.
Input Parameters
Name Type Range Description
Value UWORD32 Depending on VGA
signal
Absolute clock value
Return Values
Name Type Range Description
Status BYTE 0x00-0xFF 0 if successful, error code otherwise
2.20.2 byOsdAbsoluteClockGet
API index: 2939
Retrieves the absolute clock value either cache or the SPD.
Input Parameters
Name Type Range Description
Option BYTE 0: From cache
1: From SPD
Retrieval method
Return Values
Name Type Range Description
Status BYTE 0x00-0xFF 0 if successful, error code otherwise
Value UWORD32 Depending on VGA
signal
Absolute clock value
2.20.3 byOsdAbsoluteClockGetRange
API index: 4000
Retrieves the allowed range for the absolute clock value.
Input Parameters
Name Type Range Description
None
Return Values
Name Type Range Description
Status BYTE 0x00-0xFF 0 if successful, error code otherwise
MinValue UWORD32 Depending on VGA
signal
Minimum absolute clock value
MaxValue UWORD32 Depending on VGA
signal
Maximum absolute clock value
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