XPLMCanWriteDataRef

xplane_sdk_sys

Function XPLMCanWriteDataRef 

Source 
pub unsafe extern "C" fn XPLMCanWriteDataRef(
    inDataRef: XPLMDataRef,
) -> c_int
Expand description

XPLMCanWriteDataRef

Given a dataref, this routine returns true if you can successfully set the data, false otherwise. Some datarefs are read-only.

NOTE: even if a dataref is marked writable, it may not act writable. This can happen for datarefs that X-Plane writes to on every frame of simulation. In some cases, the dataref is writable but you have to set a separate “override” dataref to 1 to stop X-Plane from writing it.