.. _cmmGnDeviceIsLoaded:

cmmGnDeviceIsLoaded
================
----------------

SYNOPSYS
`````````````
.. code-block:: none

  VT_I4 cmmGnDeviceIsLoaded (
    [out] VT_PI4 IsLoaded
    )



DESCRIPTION
`````````````  

- 디바이스 로드의 성공/실패 여부를 알 수 있습니다.

PARAMETER
``````````

IsLoaded : 현재 디바이스가 로드되어 있는지 여부

+----------------+-------------------------------------------+
|    Value      |                 Meaning                    |
+================+===========================================+
| 0 또는 cmFALSE | 장치가 정상적으로 로드 되지 않았습니다.   |
+----------------+-------------------------------------------+
| 1 또는 cmTRUE  | 장치가 정상적으로 로드 되었습니다.        |
+----------------+-------------------------------------------+




RETURN VALUE
`````````````

- DLL 호출 여부를 반환합니다.

+-------------+----------------+
|    Value    |    Meaning     |
+=============+================+
|     음수    | 장치 로드 실패 |
+-------+----------------------+
| cmERR_NONE  | 장치 로드 성공 |
+-------------+----------------+

Example
`````````````
.. code-block:: c++
 :linenos:
 

 #include “Cmmsdk.h”
 #include “CmmsdkDef.h”
 long TestRunLoadStatus(void)
 {
     long IsLoaded = 0;
     if (cmmGnDeviceIsLoaded(&IsLoaded) != cmERR_NONE )
     {
         printf(“cmmGnDeviceIsLoaded has been failed”);
         return FALSE;
     }
     if ( IsLoaded == cmTRUE) 
         printf(“Device load has been completed”);
     else
         printf(“Device load hasn’t been completed”);
 return IsLoaded;
 }
 ----------------------------------------------------------------

 Visual Basic

 Function TestRunLoadStatus(void) As Long
     Dim IRetVal As Long
     IRetVal = cmmGnDeviceIsLoaded(TestRunLoadStatus)
     If IRetVal <> cmERR_NONE Then
         MsgBox ("cmmGnDeviceIsLoaded had been failed")
     End If 
 
     If TestRunLoadStatus = cmTRUE Then
         MsgBox ("Device load has been completed")
     Else
         MsgBox ("Device load hasn't been completed")
     End If
 End Function

 ----------------------------------------------------------------

 Delphi
 
 function TestRunLoadStatus(): LongInt;
 var
    IsLoaded : LongInt;
 begin
    IsLoaded := 0;
    if (cmmGnDeviceIsLoaded(@IsLoaded) <> cmERR_NONE ) then
    begin
        Writeln('cmmGnDeviceIsLoaded has been failed');
        Writeln('cmmGnDeviceIsLoaded has been failed');
        Result := cmFALSE;
    end;
    if ( IsLoaded = cmTRUE) then
    begin
        Writeln('Device load has been completed');
    end
    else
    begin
        Writeln('Device load hasn`t been completed');
    end;
 Result := IsLoaded;
 end;



.. seealso:: :ref:`secDll_Load`