diff --git a/Project.toml b/Project.toml
index dae76a1..cfa87f5 100644
--- a/Project.toml
+++ b/Project.toml
@@ -4,13 +4,11 @@ authors = ["SteffenPL <steffen.plunder@web.de> and contributors"]
 version = "0.1.0"
 
 [deps]
-CEnum = "fa961155-64e5-5f13-b03f-caf6b980ea82"
 PortMidi_jll = "6b227df9-c220-5195-838c-e1464939a66f"
 
 [compat]
 PortMidi_jll = "2.0.4"
 julia = "1.6"
-CEnum = "0.5"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
diff --git a/gen/generator.toml b/gen/generator.toml
index dc0cf97..28479cf 100644
--- a/gen/generator.toml
+++ b/gen/generator.toml
@@ -4,12 +4,10 @@ output_file_path = "../src/PortMidi.jl"
 module_name = "PortMidi"
 jll_pkg_name = "PortMidi_jll"
 
-# use_julia_native_enum_type = true
+use_julia_native_enum_type = true
 
-# prologue_file_path = "prologue.jl"
-# epilogue_file_path = "epilogue.jl"
+prologue_file_path = "prologue.jl"
+epilogue_file_path = "epilogue.jl"
 
-# export_symbol_prefixes = ["Pm"]
-# output_ignorelist = ["TRUE", "FALSE"]
-
-ignore_pure_definition = false
\ No newline at end of file
+export_symbol_prefixes = ["Pm"]
+output_ignorelist = ["TRUE", "FALSE"]
\ No newline at end of file
diff --git a/src/PortMidi.jl b/src/PortMidi.jl
index 40f3ec5..e7fd36d 100644
--- a/src/PortMidi.jl
+++ b/src/PortMidi.jl
@@ -3,7 +3,8 @@ module PortMidi
 using PortMidi_jll
 export PortMidi_jll
 
-using CEnum
+to_c_type(::Type{<:AbstractString}) = Cstring # or Ptr{Cchar}
+to_c_type(t::Type{<:Union{AbstractArray,Ref}}) = Ptr{eltype(t)}
 
 const PmQueue = Cvoid
 
@@ -21,9 +22,9 @@ end
 
 const PortMidiStream = Cvoid
 
-@cenum PmError::Int32 begin
+@enum PmError::Int32 begin
     pmNoError = 0
-    pmNoData = 0
+    # pmNoData = 0
     pmGotData = 1
     pmHostError = -10000
     pmInvalidDeviceId = -9999
@@ -163,7 +164,7 @@ function Pm_WriteSysEx(stream, when, msg)
     ccall((:Pm_WriteSysEx, libportmidi), PmError, (Ptr{PortMidiStream}, PmTimestamp, Ptr{Cuchar}), stream, when, msg)
 end
 
-@cenum PtError::Int32 begin
+@enum PtError::Int32 begin
     ptNoError = 0
     ptHostError = -10000
     ptAlreadyStarted = -9999
@@ -196,10 +197,6 @@ function Pt_Sleep(duration)
     ccall((:Pt_Sleep, libportmidi), Cvoid, (int32_t,), duration)
 end
 
-const FALSE = 0
-
-const TRUE = 1
-
 const PM_DEFAULT_SYSEX_BUFFER_SIZE = 1024
 
 const PmStream = PortMidiStream
@@ -252,4 +249,19 @@ const PM_FILT_TUNE = 1 << 0x06
 
 const PM_FILT_SYSTEMCOMMON = ((PM_FILT_MTC | PM_FILT_SONG_POSITION) | PM_FILT_SONG_SELECT) | PM_FILT_TUNE
 
+Pm_Message(status, data1, data2) = ((((data2) << 16) & 0xFF0000) | (((data1) << 8) & 0xFF00) | ((status) & 0xFF))
+Pm_MessageStatus(msg) = ((msg) & 0xFF)
+Pm_MessageData1(msg) = (((msg) >> 8) & 0xFF)
+Pm_MessageData2(msg) = (((msg) >> 16) & 0xFF)
+
+export Pm_Message, Pm_MessageStatus, Pm_MessageData1, Pm_MessageData2
+
+# exports
+const PREFIXES = ["Pm"]
+for name in names(@__MODULE__; all=true), prefix in PREFIXES
+    if startswith(string(name), prefix)
+        @eval export $name
+    end
+end
+
 end # module