1 files changed, 108 insertions, 0 deletions
diff --git a/windows/ahk-auslaufend/Source/Methods-Lights.ahk b/windows/ahk-auslaufend/Source/Methods-Lights.ahk
new file mode 100644
index 0000000..861f4ae
--- /dev/null
+++ b/windows/ahk-auslaufend/Source/Methods-Lights.ahk
@@ -0,0 +1,108 @@
+/* 
+   ------------------------------------------------------
+   Methode KeyboardLED zur Steuerung der Keyboard-LEDs
+   (NumLock/CapsLock/ScrollLock-Lichter)
+   
+   Benutzungshinweise: Man benutze
+   KeyboardLED(LEDvalue,"Cmd"), wobei
+   Cmd = on/off/switch,
+   LEDvalue: ScrollLock=1, NumLock=2, CapsLock=4,
+   bzw. eine beliebige Summe dieser Werte:
+   AlleAus=0, CapsLock+NumLock=6, etc.
+   
+   Der folgende Code wurde übernommen von:
+   http://www.autohotkey.com/forum/viewtopic.php?t=10532
+   
+   Um eventuelle Wechselwirkungen mit dem bestehenden
+   Code (insb. der Unicode-Konvertierung) auszuschließen,
+   sind auch alle (Hilfsmethoden) mit dem Postfix LED
+   versehen worden.
+   ------------------------------------------------------
+*/
+
+KeyboardLED(LEDvalue, Cmd) { ; LEDvalue: ScrollLock=1, NumLock=2, CapsLock=4 ; Cmd = on/off/switch
+  Static h_device
+  If !(h_device) { ; initialise
+    device=\Device\KeyBoardClass0
+    SetUnicodeStrLED(fn,device) 
+    h_device:=NtCreateFileLED(fn,0+0x00000100+0x00000080+0x00100000,1,1,0x00000040+0x00000020,0)
+  }
+  VarSetCapacity(output_actual,4,0)
+  input_size=4
+  VarSetCapacity(input,input_size,0)
+  If Cmd=switch ;switches every LED according to LEDvalue
+   KeyLED:=LEDvalue
+  If Cmd=on ;forces all choosen LED's to ON (LEDvalue= 0 ->LED's according to keystate)
+   KeyLED:=LEDvalue | (GetKeyState("ScrollLock", "T") + 2*GetKeyState("NumLock", "T") + 4*GetKeyState("CapsLock", "T"))
+  If (Cmd=off) { ;forces all choosen LED's to OFF (LEDvalue= 0 ->LED's according to keystate)
+    LEDvalue:=LEDvalue ^ 7
+    KeyLED:=LEDvalue & (GetKeyState("ScrollLock","T") + 2*GetKeyState("NumLock","T") + 4*GetKeyState("CapsLock","T"))
+  }
+  ; EncodeIntegerLED(KeyLED,1,&input,2) ;input bit pattern (KeyLED): bit 0 = scrolllock ;bit 1 = numlock ;bit 2 = capslock
+  input := Chr(1) Chr(1) Chr(KeyLED)
+  input := Chr(1)
+  input =
+  ; ???
+  success:=DllCall("DeviceIoControl"
+    , "uint", h_device
+    , "uint", CTL_CODE_LED( 0x0000000b     ; FILE_DEVICE_KEYBOARD
+              , 2
+              , 0             ; METHOD_BUFFERED
+              , 0  )          ; FILE_ANY_ACCESS
+    , "uint", &input
+    , "uint", input_size
+    , "uint", 0
+    , "uint", 0
+    , "uint", &output_actual
+    , "uint", 0 )
+}
+
+CTL_CODE_LED(p_device_type,p_function,p_method,p_access ) {
+  Return,( p_device_type << 16 ) | ( p_access << 14 ) | ( p_function << 2 ) | p_method
+}
+
+NtCreateFileLED(ByRef wfilename,desiredaccess,sharemode,createdist,flags,fattribs){ 
+  VarSetCapacity(fh,4,0) 
+  VarSetCapacity(objattrib,24,0) 
+  VarSetCapacity(io,8,0) 
+  VarSetCapacity(pus,8) 
+  uslen:=DllCall("lstrlenW","str",wfilename)*2 
+  InsertIntegerLED(uslen,pus,0,2) 
+  InsertIntegerLED(uslen,pus,2,2) 
+  InsertIntegerLED(&wfilename,pus,4) 
+  InsertIntegerLED(24,objattrib,0) 
+  InsertIntegerLED(&pus,objattrib,8) 
+  status:=DllCall("ntdll\ZwCreateFile","str",fh,"UInt",desiredaccess,"str",objattrib,"str",io,"UInt",0,"UInt",fattribs
+                  ,"UInt",sharemode,"UInt",createdist,"UInt",flags,"UInt",0,"UInt",0, "UInt") 
+  return ExtractIntegerLED(fh) 
+} 
+
+SetUnicodeStrLED(ByRef out, str_) { 
+  VarSetCapacity(st1, 8, 0) 
+  InsertIntegerLED(0x530025, st1) 
+  VarSetCapacity(out, (StrLen(str_)+1)*2, 0) 
+  DllCall("wsprintfW", "str", out, "str", st1, "str", str_, "Cdecl UInt") 
+} 
+
+ExtractIntegerLED(ByRef pSource, pOffset = 0, pIsSigned = false, pSize = 4) {
+; pSource is a string (buffer) whose memory area contains a raw/binary integer at pOffset. 
+; The caller should pass true for pSigned to interpret the result as signed vs. unsigned. 
+; pSize is the size of PSource's integer in bytes (e.g. 4 bytes for a DWORD or Int). 
+; pSource must be ByRef to avoid corruption during the formal-to-actual copying process 
+; (since pSource might contain valid data beyond its first binary zero). 
+  Loop %pSize%  ; Build the integer by adding up its bytes. 
+    result += *(&pSource + pOffset + A_Index-1) << 8*(A_Index-1) 
+  if (!pIsSigned OR pSize > 4 OR result < 0x80000000) 
+    return result  ; Signed vs. unsigned doesn't matter in these cases. 
+  ; Otherwise, convert the value (now known to be 32-bit) to its signed counterpart: 
+  return -(0xFFFFFFFF - result + 1) 
+} 
+
+InsertIntegerLED(pInteger, ByRef pDest, pOffset = 0, pSize = 4) { 
+; The caller must ensure that pDest has sufficient capacity.  To preserve any existing contents in pDest, 
+; only pSize number of bytes starting at pOffset are altered in it. 
+  Loop %pSize%  ; Copy each byte in the integer into the structure as raw binary data. 
+    DllCall("RtlFillMemory", "UInt", &pDest + pOffset + A_Index-1, "UInt", 1, "UChar", pInteger >> 8*(A_Index-1) & 0xFF) 
+}
+
+