Topic: how to updata a AcDbViewport object?

[Dream.Fei]

Code: [Select]

static void Test_x1(void)
{
// -- Get Layer's ObjectId for Freeze;
AcDbObjectId FrzLay = acdbHostApplicationServices()->workingDatabase()->clayer();

// -- Make to a array for freezeLayer use
AcDbObjectIdArray FrzArray;
FrzArray.removeAll();
FrzArray.append(FrzLay);

// -- get all the viewport's objectId, but not paperSpace.
AcDbObjectIdArray vps;
vps.removeAll(); // -- clear it;

Acad::ErrorStatus es = Acad::eInvalidInput;
es = acdbHostApplicationServices()->workingDatabase()->getViewportArray(vps, false);
if (es != Acad::eOk)
{
acutPrintf(_T("\nError(getViewportArray): %s"), acadErrorStatusText(es));
return;
}

if (vps.isEmpty())
{
acutPrintf(_T("\nError(Viewport's IdArray): none viewport in it."));
return;
}

for (int i = 0; i < vps.length(); i++)
{
AcDbViewport *pEnt = NULL;
es = acdbOpenObject((AcDbObject*&)pEnt, vps[i], AcDb::kForWrite);
if (es != Acad::eOk)
{
acutPrintf(_T("\nError(OpenLayout): %s."), acadErrorStatusText(es));
continue; // -- skip current layout.
}

// -- Freeze Layer in viewPort
es = pEnt->freezeLayersInViewport(FrzArray);
if (es != Acad::eOk)
{
acutPrintf(_T("\nError(FrzInVp): %s"), acadErrorStatusText(es));
pEnt->close();
continue;
}

/* UpdataDisplay? but it no work. this viewport have no change. */
pEnt->updateDisplay();
pEnt->close();
}

}I have write this code to Freeze Current layer on all viewport. but no work as I think.

the viewport do't updata when the command complete.

but, if I copy a viewport , the layer( what I want to freezed) already Freeze on the copy....

look the Gif:

[Glenn R]

What is 'LAYOUTREGENCTL' set to?
Also, you might have to record the graphics as modified for the viewport.

[Dream.Fei]

I don't understand what's you mean 'LAYOUTREGENCTL' ?
updata the Layout?

about viewport:
I have try the follow code, but it's not work yet.

Code: [Select]

/* UpdataDisplay? but it no work. this viewport have no change. */
pEnt->updateDisplay();

[color=red]pEnt->recordGraphicsModified();[/color] // -- new code for update

pEnt->close();
}
[color=red]acedUpdateDisplay(); [/color] // -- call graphic update


[Kerry]

.... I don't understand what's you mean 'LAYOUTREGENCTL' ? ..........

(getvar "LAYOUTREGENCTL") and/or it's equivalent from code.

Controls the display behavior of how a layout acts when switching to it.

0   Each time you switching to a layout tab, a regeneration occurs
1   Model and the last layout tab is cached into memory
2   Initial display of the tab is the only time that a regeneration occurs and any other time that the tab is activated it is read from cache

Saved in Registry; Initial value 2

[Dream.Fei]

...(getvar "LAYOUTREGENCTL")...

Thank you.
set this var's value to "0" can see the modified.

Have any other way? don't change the sysvar's value?

[Kerry]

>>>>>>>>
Have any other way? don't change the sysvar's value?

perhaps a REGEN  ?

[Dream.Fei]

the command "regen" and "regenall" can't updata this layout or viewport.

[Kerry]

Just a guess ..
Have you tried ( in code)
read and save the variable
set the variable to 0
do your mojo
reset the variable to the previously saved value.

sorry I can't be more help.

[mjguzik]

Ran into this problem some time ago with limited success updating layer changes in multiple viewports.  Then discovered what I believe is an undocumented function.  Hopefully this helps

Code: [Select]


// declarations
//

void __stdcall acedRegenLayers(class AcArray<class AcDbObjectId,class AcArrayMemCopyReallocator<class AcDbObjectId> > const &,int);

void applyLayerChanges();
Acad::ErrorStatus getLayerObjectIdArray();


// Implementation
//

// Usage applies changes to Layer Table forcing update and regen
//
void applyLayerChanges(void)
{
  applyCurDwgLayerTableChanges();
  if ( acdbHostApplicationServices()->workingDatabase()->tilemode() )
     ads_regen(); // Modelspace
  else {
    AcDbObjectIdArray layerIds;
    getLayerObjectIdArray(layerIds);
    acutPrintf(_T("Regenerating layout"));
    acedRegenLayers(layerIds, 0);
  }
  return;
}


// Usage return AcDbObjectIdArray of pDb LayerTable
Acad::ErrorStatus getLayerObjectIdArray(AcDbObjectIdArray& objIds, bool External, AcDbDatabase* pDb)
{
if ( pDb == NULL ) pDb =acdbHostApplicationServices()->workingDatabase();
Acad::ErrorStatus es = Acad::eOk;

AcDbLayerTable* pTable = 0;
es = pDb->getSymbolTable(pTable, AcDb::kForRead);
if ( es != Acad::eOk ) return es;

// Interate layers
//
AcDbLayerTableIterator* pIter = 0;
es = pTable->newIterator(pIter);
if ( es != Acad::eOk ) {
pTable->close();
return es;
}

for (pIter->start();!pIter->done();pIter->step())
{
AcDbLayerTableRecord* pRecord = 0;
es = pIter->getRecord(pRecord, AcDb::kForRead);
if( es == Acad::eOk ) {
if ( pRecord->isDependent() ) {
if (External == true)
objIds.append(pRecord->objectId());
}
else
objIds.append(pRecord->objectId());
}
pRecord->close();
}
delete pIter;
pIter = 0;

// Close layer table
pTable->close();
pTable = 0;
return es;
}


Never found any information on the int call of function other than trial and error.

Regards,

MJG

[It's Alive!]

MJG, That’s a great find, thanks for sharing it!

[Dream.Fei]

Thanks for the help.

[Dream.Fei]

...
read and save the variable
set the variable to 0
...
reset the variable to the previously saved value.

I'm use the code in a AcDbDatabaseReactor, when a new LayerRecord append,  I want it freezed on some layout's viewport.

If I save the variable and reset it, that is very busy by the code. (for example, if I insert a Xref object, may be have 10-50 layerRecord, so, if save and reset variable........ )

now, in the Arx init (On_kInitAppMsg()), set the variable to 0:

Code: [Select]

  struct resbuf rb;
  rb.restype = RTREAL;
  rb.resval.rreal = 0;
  acedSetVar(_T("LAYOUTREGENCTL"), &rb);
the problem is: if this variable set to 0, any Model or Paper switch will call GraphicModify......

MJG's code give me some inspired, Thanks.

Thanks all~

[Kerry]

I don't use CPP but I'm sure some people would appreciate you posting your working revised code from the first post.

Happy that you have an answer.

I'm use the code in a AcDbDatabaseReactor, when a new LayerRecord append,  I want it freezed on some layout's viewport.

I didn't recall you saying that earlier  ..

[Dream.Fei]

I didn't recall you saying that earlier  ..

:-)That's my problem..

The project code have no change, only add "set variable" code on the Arx init.....

Now , I'm try updata viewport without change SYSVAR.

[Dream.Fei]

// declarations
//
void __stdcall acedRegenLayers(class AcArray<class AcDbObjectId,class AcArrayMemCopyReallocator<class AcDbObjectId> > const &,int);

where this function define?