formZ SDK | 4.0 Call Back Reference | Object Attributes
Description
Custom attribute io function (Required). This function is called whenever an attribute is written to or read from file.
Plugin Prototype
fzrt_error_td fz_attr_cbak_io(
fzrt_int | windex, |
iost, | |
dir, | |
fzpl_vers_td * const | version, |
fzrt_unsigned_int | size, |
void * | data ) |
Parameters
windex [Input]
project window index
iost [Input]
The io stream pointer.
dir [Input]
Reading or writing indicator.
version [Input, Result]
When reading, this is the version with which the attribute was written. When writing, the parameter needs to be set to the attribute's current version. It is up to the plugin to keep track of the attribute's version.
size [Input]
When reading, this parameter is the size of the data when it was written. When writing, this parameter is unused.
data [Input]
Pointer to the attribute data from which to write or to which to read.
Returns
Error codes
Availability
5.0.0.0
Function Set
Defined in