Bug caused BY the mdlState_startPrimitive function

Hello

We are a company that uses MICROSTATION software to deploy our own solution “Dkmètre” that we have developed with the C and MDL languages.

One of the functionalities that Dkmètre offers is “placing terrain points”.

The user selects this feature from a range of Dkmètre added at MICROSTATION, then, he places a point in the DGN. Later, a command box is automatically opened asking the user to enter the altitude of the point.

This feature works often properly, but when we change the current DGN file without closing Dkmètre (so, not reset variables used in Dkmètre) and we chose this feature in the new DGN file it does not work and it causes a bug.

Debugging Dkmètre code  shows that the bug is launched after executing the mdl function “mdlState_startPrimitive( DkmComposite_FirstPoint, DkmComposite_StartCommand, MesDKM_Place_Courbe_Composite, MesDKM_Entree_le_premier_point_de_la_courbe );”

 I note that the DkmComposite_FirstPoint function is the function called when the user chooses to place a new terrain point.

You find bellow the code source of the functions DkmComposite_FirstPoint and DkmComposite_StartCommand and the values of the constants MesDKM_Place_Courbe_Composite and MesDKM_Entree_le_premier_point_de_la_courbe  

#define MesDKM_Place_Courbe_Composite        1168 

#define MesDKM_Entree_le_premier_point_de_la_courbe       654 

DkmComposite_FirstPoint

void DkmComposite_FirstPoint( Dpoint3d * point, int view )
{
	int status = 0;
	/**/ST_ARTICLEMETRE articleMetre;/**/
	
	paramEtudeP->recupererSymboDessin = FALSE;
	
	if( glbP->composite.orientationObjets != 2 )
		if( DkmComposite_saisieZ( glbP->composite.orientationObjets == 0 ? point : &glbP->composite.dernierPt, status, view ) == ERROR )
			return;

	if( glbP->composite.orientationObjets != 1 )
	{
		DkmComposite_forcePlanaire( point, view, TRUE, FALSE );
		glbP->composite.dernierPt.x = point->x;
		glbP->composite.dernierPt.y = point->y;
		glbP->composite.dernierPt.z = 0.0;
		glbP->composite.tg.x = glbP->composite.tg.y = 0.0;
		glbP->composite.tg.z = 0.0;
	}

	glbP->composite.commandeStarted = TRUE;

	DkmComposite_enableOptions( NULL );

	if( glbP->composite.objets )
	{
		if( glbP->composite.orientationObjets == 2 )
			glbP->composite.orientationObjets = 1;
		else
			DkmComposite_StartCommand( );
	}
	else
		DkmComposite_StartSegment(  );
}

DkmComposite_StartCommand

void DkmComposite_StartCommand( void )
{
	mdlOutput_message( DkmMessage( MesDKM_Entree_Le_point_suivant_de_la_courbe ) );

mdlState_startPrimitive( DkmComposite_FirstPoint, DkmComposite_StartCommand, MesDKM_Place_Courbe_Composite, 

MesDKM_Entree_le_premier_point_de_la_courbe );
	
	mdlState_setFunction( STATE_COMPLEX_DYNAMICS, DkmComposite_Curseur );
	mdlState_setFunction( STATE_COMMAND_CLEANUP, DkmComposite_CleanUpFunction );
	mdlState_setFunction( STATE_RESET, DkmComposite_resetRestartCommand );

	mdlSystem_setFunction( SYSTEM_SYMBOLOGY_CHANGE, __DkmComposite_SymbologyChanged__ );
	mdlSystem_setFunction( SYSTEM_LEVEL_CHANGE, __DkmComposite_SymbologyChanged__ );

	glbP->composite.dgnModelRef = MASTERFILE;
	glbP->composite.commandeStarted = FALSE;
	glbP->composite.orientationObjets = 0;
	glbP->composite.angleObjet = 0.0;

	DkmComposite_enableOptions( NULL );

	mdlAccuSnap_enableSnap( TRUE );
	mdlAccuSnap_enableLocate( TRUE );
}

the bug starts at the code written in red