Strange Crashing

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 07/09/2009 at 08:18, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   11
Platform:   Windows ;
Language(s) :     C++ ;

---------
Hello,

I am trying to get a command button to call a certain function. This is Tool plugin.

Here's the code in the message() which looks for the command button to be clicked.

> `

  
\>  Bool SculptTool::Message(BaseDocument* doc, BaseContainer& data, LONG type, void* t_data)  
\>  {  
\>    
\>  switch (type)  
\>       {  
\>            case MSG_DESCRIPTION_COMMAND:  
\>            {  
\>            DescriptionCommand *dc = (DescriptionCommand* ) t_data;  
\>            if (dc->id[0].id==COMMAND_SUBDIVIDE)  
\>                 {  
\>                 GePrint("Subdivide Button Clicked");  
\>                 ModelingCommandData mdat;  
\>                 BaseContainer bc;  
\>                 mdat.bc = &bc;  
\>              DoCommand(mdat);  
\>                 }  
\>            }  
\>       }  
\>       return TRUE;  
\>  }  
\>

`

Here's the code in the DoCommand()

> `

  
\>  Bool SculptTool::DoCommand(ModelingCommandData &mdat;)  
\>  {  
\>  GePrint("In DoCommand");  
\>  //CODE RELATED TO THE SUBDIVISION OPTIONS/////////////////////////////////  
\>    
\>       //Define Variables  
\>    
\>      PolygonObject *objPoly = ToPoly(mdat.doc->GetActiveObject());  
\>       if (!objPoly) return FALSE;  
\>    
\>    
\>       //Determine Attributes  
\>    
\>       if (mdat.bc->GetBool(HYPERNURBS_SUBDIVISION, TRUE)) //If HyperNURBS is checked  
\>       {  
\>       mdat.bc->SetBool(MDATA_SUBDIVIDE_HYPER, TRUE); //Set HyperNURBS subdivision  
\>       }  
\>       else  
\>       {  
\>       mdat.bc->SetBool(MDATA_SUBDIVIDE_HYPER, FALSE); //Disable HyperNURBS subdivision  
\>       }  
\>       mdat.bc->SetLong(MDATA_SUBDIVIDE_SUB, mdat.bc->GetLong(NUM_SUBDIVISIONS)); //Set Number of Subdivisions  
\>       mdat.bc->SetReal(MDATA_SUBDIVIDE_ANGLE, mdat.bc->GetReal(MAX_ANGLE)); //Set Maxiumum Angle  
\>              
\>       //Subdivision Command  
\>       SendModelingCommand(MCOMMAND_SUBDIVIDE, mdat);  
\>       mdat.bc->SetLong(POLYGON_COUNT, objPoly->GetPolygonCount());  
\>         
\>       return TRUE;  
\>    
\>  //END SUBDIVISION OPTIONS/////////////////////////////////////////////////  
\>    
\>    
\>  }  
\>

`

For some reason, C4D crashes whenever I click the command button. I get the "GePrint" message that says "InCommand" so I know the problem is happening in the DoCommand(). Or at least I think that's where it's happening.

Does anyone have any ideas as to what would be causing C4D to crash?

Thanks,

~Shawn

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 07/09/2009 at 09:09, xxxxxxxx wrote:

This line probably points to an empty document pointer.

PolygonObject *objPoly = ToPoly(mdat.doc- >GetActiveObject());

Always check for valid pointers!

Fill the ModelingCommandData with the current document.

cheers,
Matthias

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 07/09/2009 at 09:18, xxxxxxxx wrote:

would I do that with something like this?

BaseDocument* doc;
mdat.doc = doc;

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 07/09/2009 at 09:27, xxxxxxxx wrote:

No, in this case you would simply pass the doc from the Message function.

> \> Bool SculptTool::Message(BaseDocument\* doc, BaseContainer & data, LONG type, void\* t_data) \> { \> ... \> \> mdat.doc = doc; \> \> ... \> } \>

cheers,
Matthias

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 07/09/2009 at 09:32, xxxxxxxx wrote:

Awesome. Okay now it doesn't crash, but the problem now is.. it doesn't do anything. . LOL I still get the "In DoCOmmand" message, so it is doing the command. but none of the code in DoCommand() is executing?

Any thoughts there?

Thanks a lot Matthias.

~Shawn

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 07/09/2009 at 10:36, xxxxxxxx wrote:

Any thoughts on why it's not doing anything?

Thanks,

~Shawn

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 07/09/2009 at 11:45, xxxxxxxx wrote:

Since SendModelingCommand() works on objects, you MUST specify the object in ModelingCommandData:

mdat->op = objPoly;

Otherwise it doesn't do anything, yes.

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 07/09/2009 at 12:55, xxxxxxxx wrote:

okay I did that and it still does nothing. Any thoughts? I added
mdat->op = objPoly;

Here's new code for DoCommand()

> `

  
\>  Bool SculptTool::DoCommand(ModelingCommandData &mdat;)  
\>  {  
\>  GePrint("In DoCommand");  
\>  //CODE RELATED TO THE SUBDIVISION OPTIONS/////////////////////////////////  
\>    
\>       //Define Variables  
\>    
\>      PolygonObject *objPoly = ToPoly(mdat.doc->GetActiveObject());  
\>       if (!objPoly) return FALSE;  
\>       mdat.op = objPoly;  
\>    
\>       //Determine Attributes  
\>    
\>       if (mdat.bc->GetBool(HYPERNURBS_SUBDIVISION, TRUE)) //If HyperNURBS is checked  
\>       {  
\>       mdat.bc->SetBool(MDATA_SUBDIVIDE_HYPER, TRUE); //Set HyperNURBS subdivision  
\>       }  
\>       else  
\>       {  
\>       mdat.bc->SetBool(MDATA_SUBDIVIDE_HYPER, FALSE); //Disable HyperNURBS subdivision  
\>       }  
\>       mdat.bc->SetLong(MDATA_SUBDIVIDE_SUB, mdat.bc->GetLong(NUM_SUBDIVISIONS)); //Set Number of Subdivisions  
\>       mdat.bc->SetReal(MDATA_SUBDIVIDE_ANGLE, mdat.bc->GetReal(MAX_ANGLE)); //Set Maxiumum Angle  
\>              
\>       //Subdivision Command  
\>       SendModelingCommand(MCOMMAND_SUBDIVIDE, mdat);  
\>       mdat.bc->SetLong(POLYGON_COUNT, objPoly->GetPolygonCount());//Shows the current polygon count  
\>    
\>         
\>       return TRUE;  
\>    
\>  //END SUBDIVISION OPTIONS/////////////////////////////////////////////////  
\>       GePrint("End Of DoCommand");  
\>    
\>  }  
\>

`

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 07/09/2009 at 13:57, xxxxxxxx wrote:

Have you checked the values being set in mdat, especially MDATA_SUBDIVIDE_SUB? This must be >0. mdat.mode should be MODIFY_ALL.

Helper

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 07/09/2009 at 14:36, xxxxxxxx wrote:

okay nothing happens when I click the button. But something very weird happens when I click the button and then resize the viewport frame. I click the button, nothing happens, then I resize the viewport frame and suddenly the cube in my viewport subdivides. But not by the number that is in the LONG NUM_SUBDIVISIONS. I am not sure where it is getting this number from ..

Here's the code I have in DoCommand().

Thanks for your help.

> `

  
\>  Bool SculptTool::DoCommand(ModelingCommandData &mdat;)  
\>  {  
\>  GePrint("In DoCommand");  
\>  //CODE RELATED TO THE SUBDIVISION OPTIONS/////////////////////////////////  
\>    
\>       //Define Variables  
\>    
\>      PolygonObject *objPoly = ToPoly(mdat.doc->GetActiveObject());  
\>       if (!objPoly) return FALSE;  
\>       mdat.op = objPoly;  
\>       mdat.mode = MODIFY_ALL;  
\>    
\>       //Determine Attributes  
\>    
\>       if (mdat.bc->GetBool(HYPERNURBS_SUBDIVISION, TRUE)) //If HyperNURBS is checked  
\>       {  
\>       mdat.bc->SetBool(MDATA_SUBDIVIDE_HYPER, TRUE); //Set HyperNURBS subdivision  
\>       }  
\>       else  
\>       {  
\>       mdat.bc->SetBool(MDATA_SUBDIVIDE_HYPER, FALSE); //Disable HyperNURBS subdivision  
\>       }  
\>       mdat.bc->SetLong(MDATA_SUBDIVIDE_SUB, mdat.bc->GetLong(NUM_SUBDIVISIONS); //Set Number of Subdivisions  
\>       mdat.bc->SetReal(MDATA_SUBDIVIDE_ANGLE, mdat.bc->GetReal(MAX_ANGLE)); //Set Maxiumum Angle  
\>              
\>       //Subdivision Command  
\>       SendModelingCommand(MCOMMAND_SUBDIVIDE, mdat);  
\>       mdat.bc->SetLong(POLYGON_COUNT, objPoly->GetPolygonCount());//Shows the current polygon count  
\>    
\>         
\>       return TRUE;  
\>    
\>  //END SUBDIVISION OPTIONS/////////////////////////////////////////////////  
\>       GePrint("End Of DoCommand");  
\>    
\>  }  
\>

`

Weird huh?