SaveToFile - method of object PmBuffer

Description:

Writing values from data block into a binary file.

Syntax:

Long SaveToFile(Long nOffset, String sFile, [Long nFileOffset], [Long nLength])

Calling:

nWriteBytes = PmBuffer.SaveToFile(nOffset, sFile, nFileOffset, nLength)

Parameters:

nOffset	(Long) Defines the position of read value in the data block. The read value must be inside the data block. The item is read either whole or not read at all. >= 0 - Index (in bytes, zero-based index) in data block. -4 - The internal automatic position is used (see AutoOffset). It points behind the last read or written value and increases continually. If the items are read/written one by one then it is not necessary to define the position, but it is handy to use this automated positioning.
sFile	(String) The file name with the path. If a full path is not entered, then it is completed relative to the application file folder. It is recommended to use the PROMOTIC path syntax - see PROMOTIC path to files and folders.
nFileOffset	[optional] (Long) Defines the position of written value in the binary file in bytes. The value 0 (default) means writing from the beginning of the file.
nLength	[optional] (Long) Defines the number of written bytes. >=0 - Number (count) in bytes -1 (default) - Writing all values up to the end of the data block. -2 - Writing all values up to the end of the data block and then sets the end of the file.

Return Values:

Returns the number of really written bytes

Note:

This method is not functional for Web panels.

Writing into file:

For inverse example see Reading from file.

JavaScriptVBScriptSelect and copy to clipboard


var nSize;
var oBuf = Pm.CreatePmBuffer();
oBuf.SetSize(0);
oBuf.SetInt16(-2, 0x5060);
oBuf.SetInt8(-2, 0x70);
nSize = oBuf.SaveToFile(0, "#data:Test.bin", 0, -1);