code: func GetActiveUniformName(program uint32, uniformIndex uint32, bufSize int32, length *int32, uniformName *uint8) {
  	syscall.Syscall6(gpGetActiveUniformName, 5, uintptr(program), uintptr(uniformIndex), uintptr(bufSize), uintptr(unsafe.Pointer(length)), uintptr(unsafe.Pointer(uniformName)), 0)
  }
docs: // query the name of an active uniform