XPLMSetDataf

XPLMSetDataf

XPLM_API void                 XPLMSetDataf(
                                   XPLMDataRef          inDataRef,    
                                   float                inValue);    

Write a new value to a single precision floating point data ref. This routine is a no-op if the plugin publishing the dataref is disabled, the dataref is invalid, or the dataref is not writable.