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LMarker::Create

#include "ltwrappr.h"

virtual L_INT LMarker::Create()

Creates an empty marker collection.

Returns

Value	Meaning
SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes

Comments

Markers can be added to this collection with LMarker::Insert.

When the marker collection is no longer needed, delete it by calling LMarker::Free.

Required DLLs and Libraries

LTFIL
For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

Example

This example will copy all APPn markers from one marker collection to another.

/*<struct>*/ 
#ifdef CMarkerTest 
class CMarkerTest : public LMarker 
{ 
private: 
 virtual L_INT EnumMarkersCallBack(L_UINT uMarker,  
                                   L_UINT uMarkerSize,  
                                   L_VOID *pMarkerData,  
                                   LEADMARKERCALLBACK pfnLEADCallback,  
                                   L_VOID * pLEADUserData); 
// Attributes 
}; 
#endif // #ifdef CMarkerTest 
/*</struct>*/ 
 
L_INT LMarker__CreateExample(CMarkerTest SrcMarkers, LMarker *DstMarkers) 
{ 
   L_INT nRet1; 
   L_INT nRet = DstMarkers->Create(); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   // copy the APPn markers from hSrcMarkers 
   nRet = SrcMarkers.Enum(0); 
   if(nRet != SUCCESS) 
   { 
      // An error occurred. Free the marker list we have created 
      nRet1 = DstMarkers->Free(); 
      if(nRet != SUCCESS) 
         return nRet1; 
 
      return nRet; 
   } 
 
   return SUCCESS; 
} 
  
L_INT CMarkerTest::EnumMarkersCallBack(L_UINT uMarker,  
                                       L_UINT uMarkerSize,  
                                       L_VOID *pMarkerData,  
                                       LEADMARKERCALLBACK pfnLEADCallback,  
                                       L_VOID * pLEADUserData) 
{ 
   UNREFERENCED_PARAMETER(pfnLEADCallback); 
   UNREFERENCED_PARAMETER(pLEADUserData); 
 
     if(uMarker >= 0xE0 && uMarker < 0xF0) 
   { 
      // just insert all the markers in the destination collection list 
      // Insert will never return SUCCESS_IGNOREMARKER,  
      //    so the source collection list will not be changed. 
      return this->Insert(0xFFFFFFFF, uMarker, uMarkerSize, (L_UCHAR*) pMarkerData); 
   } 
   return SUCCESS; 
}