FP_Write

IAStatus FP_Write

(IAHandle serverHandle, IAHandle IOPointHandle, IAByte buffer[], unsigned long bufferSize);

Purpose

This function writes data from the buffer you specify to an I/O point. The operation is synchronous and therefore blocks client execution until the write operation completes.

Parameter List

Name	Type	Description
serverHandle	IAHandle	Handle to a specific server session. Create the handle with FP_Open.
IOPointHandle	IAHandle	Used to reference an I/O point. You can create the handle with FP_CreateTagIOPoint.
buffer	IAByte[ ]	Buffer containing data you want to write to the server.
bufferSize	unsigned long	Size of the buffer that you created for the write operation. The buffer size should indicate the length (in bytes) of allocated memory pointed to by the buffer pointer.

Return Value

The LabWindows/CVI manager or the server can return the following status codes. FP_ErrorMsg converts the status codes into descriptive strings.

LabWindows/CVI Manager-Level Error Codes	0x8480 IA_MGR_ERROR 0x8484 IA_MGR_SERVER_NOT_LOADED 0x8487 IA_MGR_INVALID_SERVER_HND
FieldPoint Server-Level Standard Error Codes	0x8000 to 0x83FF

Refer to the error section in your server help file for more information.