Rockwell-automation 2711P Software Development Kit User Manual Instrukcja Użytkownika Pobierz pdf (Strona 47)

Publication 2711P-UM005A-EN-P - March 2007

PanelView Plus CE-Specific Extensions to the WinCE API 47

pdwSize

A pointer to a caller allocated DWORD whose value represents the

number of bytes at pvData. Upon success, dwSize returns the number

of bytes from the buffer used for a set.

pvData

A pointer to a caller allocated buffer, which contains the data values

for the selected parameter.

Return Values:

Return values are common for both Set and Get functions. See Get/Set

System Parameter - Return Codes above.

Remarks:

The buffer at *pvData must be large enough to contain the

information requested and must be aligned as required. For example,

if the data in *pvData is expected to be a DWORD value, then *pvData

MUST be DWORD aligned.

Please refer to System Parameters on page 42 for the data types

associated with the various writeable parameters.

Portability:

Please refer to System Parameters above for an enumeration of which

parameters are supported on the platforms.

Requirements:

System Timers

The platform hardware provides timers of varying precision,

flexibility, and range. Some of these timers may be used for other

operating-system level purposes such as the reschedule timer

interrupt. However, one or more timers are available for

general-purpose use to application programs. The timers are typically

called user timers and can be configured for one-shot or periodic

operation.

Runs On Version Defined In Link To

PanelView Plus CE

RAC6182

All Miscsystem.h Miscsystem.lib

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Rockwell-automation 2711P Software Development Kit User Manual Instrukcja Użytkownika Strona 47