Need help with DLL calls

[Dattebayo]

Hello, i need help with translating these function calls to Autoit dll calls, I've never tried dllcalls on my own before so i expected to fail the first time. the c++ functions below is what im trying to call.

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/*
* This file was produced from documentation provided by
* Hauppauge Computer Works. It is released under the
* GNU General Public License
*
* Peter Heitman, Oct 2003
* Denybear, Apr 2005
*/

#ifndef _IRREMOTE_H

#ifdef __cplusplus
extern "C" {
#endif

/*
* General Notes
*
* The basic sequence is IR_Open(), and this starts a timer;
*  poll using IR_GetKeyCode() called from the WM_TIMER messages,
*  and then call KillTimer( hWnd, 1) and IR_Close() when you are done.
*
* With the release of the v2.45 IR remote driver for PVR150
*  (in conjunction with the HCWPVR2 remote), the IR_GetKeyCode () has been more
*  or less deprecated (and for sure does not work with that version of the driver).
*  You should use IR_GetSystemKeyCode () as a replacement.
*
* The basic sequence is then IR_Open(), and this starts a timer;
*  poll using IR_GetSystemKeyCode() called from the WM_TIMER messages,
*  and then call KillTimer( hWnd, 1) and IR_Close() when you are done.
*/

/*
* Defines
*/

#define IR_NOKEY   0x1fff

/*
* IR_Open
*
* Parameters:
*
*   hWnd is the window handle of your app. Timer events WILL be sent to
*     this window if IR_Open is successful; the interval is nominally 85ms
*
*   msg is UNUSED, set it to 0
*
*   Verbose is a flag to indicate if a message box should be displayed
*     with status during the open
* 
*   myIRPort is the I2C address to connect to; by default it should be 0,
*     which does a search for any suitable device. You should set it to 0
*     unless you have a good reason not to (hint: you don't :-)
*
* Return Value:
*
*   returns non-0 if it was succesful
*/

BOOL WINAPI IR_Open( HWND hWnd, UINT msg, BOOL Verbose, WORD myIRPort );

/*
* IR_GetVersion
*
* Return Value:
*
*   returns the FW version of the found IR controller in the lower 6 bits;
*     only useful for testing
*/

DWORD WINAPI IR_GetVersion();

/*
* IR_Close
*
* Closes down the existing connections to the IR device
*   (Does NOT stop the TIMER; do that yourself via KillTimer( hWnd, 1))
*
* Parameters:
*
*   hWnd - currently NOT USED, set to 0
*
*   msg - currently NOT USED, set to 0
*
* Return Value:
*
*   returns TRUE
*/

BOOL WINAPI IR_Close( HWND hWnd, UINT msg );


/*
* IR_Power
*
* Use ???
*
* Parameters:
*
*   msg - can have 2 values : either 0x12, either 0x34.
*         No more information is available at the moment
*
* Return Value:
*
*   returns non-0 if it was succesful
*/

BOOL WINAPI IR_Power( UINT msg );


/*
* IR_GetKeyCodeEx
*
* Parameters:
*
*   piRepeatCount  points to a value that contains the current repeat count;
*     used to do auto repeat. This pointed-to value SHOULD be 0 initially;
*     and should probably never be touched; and it MUST be Global/static
*     (not stack based) (the IR_GetKeyCodeEx function assumes this state
*     variable is preserved across calls)
*
* Return Value:
*
*   returns the current IR button press, or IR_NOKEY for no button pressed
*     since last poll
*
*   The format of the returned KeyCode is the 14bit RC5 code;
*   bit:   13 12 11  10 9  8  7  6  5  4  3  2  1  0
*   cmd:    S  S  T  A4 A3 A2 A1 A0 C5 C4 C3 C2 C1 C0
*
*   S= status, always 1
*   T= toggle, changes for every physical keypress (but not auto repeats
*         from held keys)
*   Ax = Address bits (0=older black remote, 31=HCWPVR remote)
*   Cx = Key codes (look at the full list for each remote in
*                   \windows\IRRemote.ini file)
*
*
*   This is a low-level function; It is called by both IR_GetKeyCode()
*   and IR_GetSystemKeyCode ().
*
*/

WORD WINAPI IR_GetKeyCodeEx ( int* piRepeatCount );



/*
* IR_GetKeyCode
*
* Parameters:
*
*   piRepeatCount  points to a value that contains the current repeat count;
*     used to do auto repeat. This pointed-to value SHOULD be 0 initially;
*     and should probably never be touched; and it MUST be Global/static
*     (not stack based) (the IR_GetKeyCode function assumes this state
*     variable is preserved across calls)
*
* Return Value:
*
*   returns the current IR button press, or IR_NOKEY for no button pressed
*     since last poll
*
*   The format of the returned KeyCode is the 14bit RC5 code;
*   bit:   13 12 11  10 9  8  7  6  5  4  3  2  1  0
*   cmd:    S  S  T  A4 A3 A2 A1 A0 C5 C4 C3 C2 C1 C0
*
*   S= status, always 1
*   T= toggle, changes for every physical keypress (but not auto repeats
*         from held keys)
*   Ax = Address bits (0=older black remote, 31=HCWPVR remote)
*   Cx = Key codes (look at the full list for each remote in
*                   \windows\IRRemote.ini file)
*/

WORD WINAPI IR_GetKeyCode( int* piRepeatCount );



/*
* IR_GetSystemKeyCode
*
*   returns the current IR button press since last poll
*
* Parameters:
*
*   piRepeatCount  points to a value that contains the current repeat count;
*     used to do auto repeat. This pointed-to value SHOULD be 0 initially;
*     and should probably never be touched; and it MUST be Global/static
*     (not stack based) (the IR_GetSystemKeyCode function assumes this state
*     variable is preserved across calls)
*
*   piRemoteCode points to a return code that is <0x1F :
*     (0=older black remote, 31=HCWPVR remote, 30=HCWPVR2 remote)
*
*   piKeyCode points to a return code that is <0x7F :
*     this is the key code (look at the full list for each remote in
*                   \windows\IRRemote.ini file)
*
* Return Value:
*   TRUE (non-0) if key pressed, FALSE if no key pressed
*/

BOOL WINAPI IR_GetSystemKeyCode( int* piRepeatCount, int* piRemoteCode, int*piKeyCode );


#ifdef __cplusplus
}
#endif

#endif

And this is one of many attempts i tried.

$dll = DllOpen("irremote.dll")
$shit = DllCall($dll, "hwnd", "IR_Open","uint",0,"bool",0,"word",0)
If @Error then msgbox(0,"","first dll failed - Error = "&@Error)
$result = DllCall($dll, "bool", "IR_GetSystemKeyCode","int",0,"int",0)
If @Error then msgbox(0,"","second dll failed - Error = "&@Error)
dllclose($dll)

They always return 0 >_<

Irremote.dll

Edited August 13, 2009 by Dattebayo

[Yashied]

$dll = DllOpen("irremote.dll")
$shit = DllCall($dll, "hwnd", "IR_Open", "uint", 0, "int", 0, "dword", 0)
MsgBox(0, "", $shit[0])
$result = DllCall($dll, "int", "IR_GetSystemKeyCode", "int", 0, "int", 0)
MsgBox(0, "", $result[0])
DllClose($dll)

DllCall() returns an array that contains the function return value and a copy of all the parameters (including parameters that the function may have modified when passed by reference).

Edited August 13, 2009 by Yashied

[Dattebayo]

woops, changed the script it still doesn't work tho cause the actual dllcall errors out.

[trancexx]

Yashied's function are missing one parameter each. It should be:

BOOL WINAPI IR_Open( HWND hWnd, UINT msg, BOOL Verbose, WORD myIRPort );

DllCall($dll, "int", "IR_Open", "hwnd", $hWnd, "dword", 0, "int", 0, "ushort", 0)

and

BOOL WINAPI IR_GetSystemKeyCode( int* piRepeatCount, int* piRemoteCode, int*piKeyCode );

DllCall($dll, "int", "IR_GetSystemKeyCode", "int*", 0, "int*", 0, "int*, 0)

Edited August 13, 2009 by trancexx

[Dattebayo]

Sweet! thanks both of you! holy smokes this is amazing >_< i can totally customize my IR remote now with this.