Activate or Deactivate DisplayTheme in DWG using .NET API

[zetazee]

Hi,

 

I have 2 display themes in my DWG, and would like to use the .NET API to activate one display theme and deactivate the other.

 

I have searched AutoCAD forums and here, but there wasn't any threads on this.

 

Current findings so far. Showing part of my code.

DisplayTheme has the public data member IsActive, and I was able to access the 2 display themes in my DWG, whereby one is active, the other is not.

Search through the list of DisplayTheme public methods, but there was not any that could activate or deactivate it.

 

DisplayTheme dt = tm.GetObject(id, OpenMode.ForWrite) as DisplayTheme;

ed.WriteMessage(dt.IsActive + "\n");

 

Any assistance would be great. Thanks.

[Jeff H]

I can not get it to attach.

 

[size=2]
[[/size][size=2][color=#010001][size=2][color=#010001]CommandMethod[/color][/size][/color][/size][size=2]([/size][size=2][color=#a31515][size=2][color=#a31515]"ChangeDisplayThemes"[/color][/size][/color][/size][size=2])]
[/size][size=2][color=#0000ff][size=2][color=#0000ff]public[/color][/size][/color][/size][size=2] [/size][size=2][color=#0000ff][size=2][color=#0000ff]void[/color][/size][/color][/size][size=2] [/size][size=2][color=#010001][size=2][color=#010001]ChangeDisplayThemes[/color][/size][/color][/size][size=2]()
{
[/size][size=2][color=#010001][size=2][color=#010001]Document[/color][/size][/color][/size][size=2] [/size][size=2][color=#010001][size=2][color=#010001]doc[/color][/size][/color][/size][size=2] = [/size][size=2][color=#010001][size=2][color=#010001]Application[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]DocumentManager[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]MdiActiveDocument[/color][/size][/color][/size][size=2];
[/size][size=2][color=#010001][size=2][color=#010001]Database[/color][/size][/color][/size][size=2] [/size][size=2][color=#010001][size=2][color=#010001]db[/color][/size][/color][/size][size=2] = [/size][size=2][color=#010001][size=2][color=#010001]doc[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]Database[/color][/size][/color][/size][size=2];
[/size][size=2][color=#010001][size=2][color=#010001]Editor[/color][/size][/color][/size][size=2] [/size][size=2][color=#010001][size=2][color=#010001]ed[/color][/size][/color][/size][size=2] = [/size][size=2][color=#010001][size=2][color=#010001]doc[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]Editor[/color][/size][/color][/size][size=2];
[/size][size=2][color=#0000ff][size=2][color=#0000ff]using[/color][/size][/color][/size][size=2] ([/size][size=2][color=#010001][size=2][color=#010001]Transaction[/color][/size][/color][/size][size=2] [/size][size=2][color=#010001][size=2][color=#010001]trx[/color][/size][/color][/size][size=2] = [/size][size=2][color=#010001][size=2][color=#010001]db[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]TransactionManager[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]StartTransaction[/color][/size][/color][/size][size=2]())
{

[/size][size=2][color=#010001][size=2][color=#010001]DisplayRepresentationManager[/color][/size][/color][/size][size=2] [/size][size=2][color=#010001][size=2][color=#010001]disRepMngr[/color][/size][/color][/size][size=2] = [/size][size=2][color=#0000ff][size=2][color=#0000ff]new[/color][/size][/color][/size][size=2] [/size][size=2][color=#010001][size=2][color=#010001]DisplayRepresentationManager[/color][/size][/color][/size][size=2]([/size][size=2][color=#010001][size=2][color=#010001]db[/color][/size][/color][/size][size=2]);
[/size][size=2][color=#010001][size=2][color=#010001]DisplayConfiguration[/color][/size][/color][/size][size=2] [/size][size=2][color=#010001][size=2][color=#010001]currentDisplayConfig[/color][/size][/color][/size][size=2] =
[/size][size=2][color=#010001][size=2][color=#010001]disRepMngr[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]DisplayConfigurationIdForCurrentViewport[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]GetObject[/color][/size][/color][/size][size=2]([/size][size=2][color=#010001][size=2][color=#010001]OpenMode[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]ForWrite[/color][/size][/color][/size][size=2]) [/size][size=2][color=#0000ff][size=2][color=#0000ff]as[/color][/size][/color][/size][size=2] [/size][size=2][color=#010001][size=2][color=#010001]DisplayConfiguration[/color][/size][/color][/size][size=2];
[/size][size=2][color=#010001][size=2][color=#010001]DictionaryDisplayThemeStyle[/color][/size][/color][/size][size=2] [/size][size=2][color=#010001][size=2][color=#010001]displayThemes[/color][/size][/color][/size][size=2] = [/size][size=2][color=#0000ff][size=2][color=#0000ff]new[/color][/size][/color][/size][size=2] [/size][size=2][color=#010001][size=2][color=#010001]DictionaryDisplayThemeStyle[/color][/size][/color][/size][size=2]([/size][size=2][color=#010001][size=2][color=#010001]db[/color][/size][/color][/size][size=2]);
[/size][size=2][color=#010001][size=2][color=#010001]ObjectId[/color][/size][/color][/size][size=2] [/size][size=2][color=#010001][size=2][color=#010001]displayThemeId[/color][/size][/color][/size][size=2] = [/size][size=2][color=#010001][size=2][color=#010001]displayThemes[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]GetAt[/color][/size][/color][/size][size=2]([/size][size=2][color=#a31515][size=2][color=#a31515]"Standard"[/color][/size][/color][/size][size=2]);
[/size][size=2][color=#0000ff][size=2][color=#0000ff]if[/color][/size][/color][/size][size=2] ([/size][size=2][color=#010001][size=2][color=#010001]currentDisplayConfig[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]DisplayTheme[/color][/size][/color][/size][size=2] == [/size][size=2][color=#010001][size=2][color=#010001]displayThemeId[/color][/size][/color][/size][size=2])
{
[/size][size=2][color=#010001][size=2][color=#010001]displayThemeId[/color][/size][/color][/size][size=2] = [/size][size=2][color=#010001][size=2][color=#010001]displayThemes[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]GetAt[/color][/size][/color][/size][size=2]([/size][size=2][color=#a31515][size=2][color=#a31515]"New Style"[/color][/size][/color][/size][size=2]);
}
[/size][size=2][color=#010001][size=2][color=#010001]currentDisplayConfig[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]DetachDisplayTheme[/color][/size][/color][/size][size=2]();
[/size][size=2][color=#010001][size=2][color=#010001]currentDisplayConfig[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]AttachDisplayTheme[/color][/size][/color][/size][size=2]([/size][size=2][color=#010001][size=2][color=#010001]displayThemeId[/color][/size][/color][/size][size=2]);


[/size][size=2][color=#010001][size=2][color=#010001]trx[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]Commit[/color][/size][/color][/size][size=2]();
}
}
[/size]

[Jeff H]

I was not thinking and passing in the DisplayThemeStyleID

 

But this one changes it to other each time it is called

 

This is a example just to figure it out and knew I had only 2 display themes in drawing.

 

How were you grabbing your display themes?

 

I have to copy it from VS 2010 paste it in VS 2008 so all the code will not all be on one line but it srill does not format.

 

[size=2][[/size][size=2][color=#2b91af][size=2][color=#2b91af]CommandMethod[/color][/size][/color][/size][size=2]([/size][size=2][color=#a31515][size=2][color=#a31515]"ChangeDisplayThemes"[/color][/size][/color][/size][size=2])][/size]
[size=2][color=#0000ff][size=2][color=#0000ff]public[/color][/size][/color][/size][size=2][color=#0000ff][size=2][color=#0000ff]void[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]ChangeDisplayThemes[/color][/size][/color][/size][size=2]()[/size]
[size=2]{[/size]
[size=2][color=#010001][size=2][color=#010001]Document[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]doc[/color][/size][/color][/size][size=2] = [/size][size=2][color=#010001][size=2][color=#010001]Application[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]DocumentManager[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]MdiActiveDocument[/color][/size][/color][/size][size=2];[/size]
[size=2][color=#010001][size=2][color=#010001]Database[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]db[/color][/size][/color][/size][size=2] = [/size][size=2][color=#010001][size=2][color=#010001]doc[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]Database[/color][/size][/color][/size][size=2];[/size]
[size=2][color=#010001][size=2][color=#010001]Editor[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]ed[/color][/size][/color][/size][size=2] = [/size][size=2][color=#010001][size=2][color=#010001]doc[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]Editor[/color][/size][/color][/size][size=2];[/size]
[size=2][color=#0000ff][size=2][color=#0000ff]using[/color][/size][/color][/size][size=2] ([/size][size=2][color=#010001][size=2][color=#010001]Transaction[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]trx[/color][/size][/color][/size][size=2] = [/size][size=2][color=#010001][size=2][color=#010001]db[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]TransactionManager[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]StartTransaction[/color][/size][/color][/size][size=2]())[/size]
[size=2]{[/size]
[size=2][color=#010001][size=2][color=#010001]List[/color][/size][/color][/size][size=2]<[/size][size=2][color=#010001][size=2][color=#010001]ObjectId[/color][/size][/color][/size][size=2]> [/size][size=2][color=#010001][size=2][color=#010001]displayThemeIdList[/color][/size][/color][/size][size=2] = [/size][size=2][color=#0000ff][size=2][color=#0000ff]new[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]List[/color][/size][/color][/size][size=2]<[/size][size=2][color=#010001][size=2][color=#010001]ObjectId[/color][/size][/color][/size][size=2]>(); [/size]
[size=2][color=#010001][size=2][color=#010001]BlockTable[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]bt[/color][/size][/color][/size][size=2] = ([/size][size=2][color=#010001][size=2][color=#010001]BlockTable[/color][/size][/color][/size][size=2])[/size][size=2][color=#010001][size=2][color=#010001]trx[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]GetObject[/color][/size][/color][/size][size=2]([/size][size=2][color=#010001][size=2][color=#010001]db[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]BlockTableId[/color][/size][/color][/size][size=2], [/size][size=2][color=#010001][size=2][color=#010001]OpenMode[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]ForRead[/color][/size][/color][/size][size=2]);[/size]
[size=2][color=#010001][size=2][color=#010001]BlockTableRecord[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]modelSpace[/color][/size][/color][/size][size=2] = ([/size][size=2][color=#010001][size=2][color=#010001]BlockTableRecord[/color][/size][/color][/size][size=2])[/size][size=2][color=#010001][size=2][color=#010001]trx[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]GetObject[/color][/size][/color][/size][size=2]([/size][size=2][color=#010001][size=2][color=#010001]bt[/color][/size][/color][/size][size=2][[/size][size=2][color=#010001][size=2][color=#010001]BlockTableRecord[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]ModelSpace[/color][/size][/color][/size][size=2]], [/size][size=2][color=#010001][size=2][color=#010001]OpenMode[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]ForRead[/color][/size][/color][/size][size=2]);[/size]
[size=2][color=#0000ff][size=2][color=#0000ff]foreach[/color][/size][/color][/size][size=2] ([/size][size=2][color=#010001][size=2][color=#010001]ObjectId[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]objId[/color][/size][/color][/size][size=2][color=#0000ff][size=2][color=#0000ff]in[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]modelSpace[/color][/size][/color][/size][size=2])[/size]
[size=2]{[/size]
[size=2][color=#0000ff][size=2][color=#0000ff]if[/color][/size][/color][/size][size=2] ([/size][size=2][color=#010001][size=2][color=#010001]objId[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]ObjectClass[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]Name[/color][/size][/color][/size][size=2] == [/size][size=2][color=#a31515][size=2][color=#a31515]"AecDbDisplayTheme"[/color][/size][/color][/size][size=2])[/size]
[size=2]{[/size]
[size=2][color=#010001][size=2][color=#010001]displayThemeIdList[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]Add[/color][/size][/color][/size][size=2]([/size][size=2][color=#010001][size=2][color=#010001]objId[/color][/size][/color][/size][size=2]);[/size]
[size=2]}[/size]

[size=2]} [/size]
[size=2][color=#010001][size=2][color=#010001]DisplayRepresentationManager[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]disRepMngr[/color][/size][/color][/size][size=2] = [/size][size=2][color=#0000ff][size=2][color=#0000ff]new[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]DisplayRepresentationManager[/color][/size][/color][/size][size=2]([/size][size=2][color=#010001][size=2][color=#010001]db[/color][/size][/color][/size][size=2]);[/size]
[size=2][color=#010001][size=2][color=#010001]DisplayConfiguration[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]currentDisplayConfig[/color][/size][/color][/size][size=2] =[/size]
[size=2][color=#010001][size=2][color=#010001]disRepMngr[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]DisplayConfigurationIdForCurrentViewport[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]GetObject[/color][/size][/color][/size][size=2]([/size][size=2][color=#010001][size=2][color=#010001]OpenMode[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]ForWrite[/color][/size][/color][/size][size=2]) [/size][size=2][color=#0000ff][size=2][color=#0000ff]as[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]DisplayConfiguration[/color][/size][/color][/size][size=2]; [/size]
[size=2][color=#010001][size=2][color=#010001]ObjectId[/color][/size][/color][/size][size=2][color=#010001][size=2][color=#010001]displayThemeId[/color][/size][/color][/size][size=2] = [/size][size=2][color=#010001][size=2][color=#010001]displayThemeIdList[/color][/size][/color][/size][size=2][0];[/size]

[size=2][color=#0000ff][size=2][color=#0000ff]if[/color][/size][/color][/size][size=2] ([/size][size=2][color=#010001][size=2][color=#010001]currentDisplayConfig[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]DisplayTheme[/color][/size][/color][/size][size=2] == [/size][size=2][color=#010001][size=2][color=#010001]displayThemeId[/color][/size][/color][/size][size=2])[/size]
[size=2]{[/size]
[size=2][color=#010001][size=2][color=#010001]displayThemeId[/color][/size][/color][/size][size=2] = [/size][size=2][color=#010001][size=2][color=#010001]displayThemeIdList[/color][/size][/color][/size][size=2][1];[/size]
[size=2]} [/size]

[size=2][color=#010001][size=2][color=#010001]currentDisplayConfig[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]DetachDisplayTheme[/color][/size][/color][/size][size=2](); [/size]
[size=2][color=#010001][size=2][color=#010001]currentDisplayConfig[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]AttachDisplayTheme[/color][/size][/color][/size][size=2]([/size][size=2][color=#010001][size=2][color=#010001]displayThemeId[/color][/size][/color][/size][size=2]); [/size]
[size=2][color=#010001][size=2][color=#010001]trx[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]Commit[/color][/size][/color][/size][size=2]();[/size]
[size=2]}[/size]
[size=2][color=#010001][size=2][color=#010001]ed[/color][/size][/color][/size][size=2].[/size][size=2][color=#010001][size=2][color=#010001]Regen[/color][/size][/color][/size][size=2]();[/size]
[size=2]}[/size]

[zetazee]

Hi Jeff,

 

in order to extract the display themes, I would add these lines of code in the foreach ObjectId objId in modelSpace

 

foreach (ObjectId objId in modelSpace)
{
   //similar to how you extract entities out
   DisplayTheme dt = tm.GetObject(objId, OpenMode.ForRead) as DisplayTheme;

  //i can then print out whether display theme is active or not.
  //ed is of Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
  ed.WriteMessage(dt.IsActive() + "\n");
}

[zetazee]

Hi Jeff,

 

I just tried out the code you pasted. The code works, and it is what I wanted.

 

Many thanks for the kind assistance.