Drag and drop to UserArea

Helper

On 25/12/2017 at 01:22, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   R18
Platform:   Windows ;
Language(s) :     C++ ;

---------
How can I get an animatable parameter by drag and drop?
The Object Manager object was created by adding LinkBoxGUI with AddCustomGui.
Is there a drag-and-drop correspondence GUI for the parameter?
Since I was not able to make LinkBox remodeling because it was difficult, I wanted to create it using user area drag and drop, but I saw the sample file of SDK manual and AsyncTest and made it for the same, but I understood how to receive the message did not.

  
#pragma once   
#include "c4d.h"   
#include "c4d_commanddata.h"   
#include "c4d_gui.h"   
  
#define IDS_UserAreaTest 1000001   
  
Bool RegisterUserAreaTest(void);   
  
Bool PluginStart(void)   
{   
     if (!RegisterUserAreaTest())   
          return false;   
     return true;   
}   
  
void PluginEnd(void)   
{   
}   
  
Bool PluginMessage(Int32 id, void* data)   
{   
     switch (id)   
     {   
          case C4DPL_INIT_SYS:   
               return true;   
          case C4DMSG_PRIORITY:   
               return true;   
          case C4DPL_BUILDMENU:   
               break;   
          case C4DPL_COMMANDLINEARGS:   
               break;   
          case C4DPL_EDITIMAGE:   
               return false;   
     }   
     return false;   
}   
  
class UserAreaLinkBox : public GeUserArea   
{   
public:   
     virtual Bool GetMinSize(Int32& w, Int32& h);   
     virtual void DrawMsg(Int32 x1, Int32 y1, Int32 x2, Int32 y2, const BaseContainer& msg);   
};   
  
Bool UserAreaLinkBox::GetMinSize(Int32& w, Int32& h)   
{   
     w = 100;   
     h = 20;   
     return true;   
}   
  
void UserAreaLinkBox::DrawMsg(Int32 x1, Int32 y1, Int32 x2, Int32 y2, const BaseContainer& msg)   
{   
     this->OffScreenOn();   
     this->DrawSetPen(Vector(110, 110, 0));   
     this->DrawRectangle(x1 + 2, y1 + 2, x2 - 2, y2 - 2);   
}   
  
class UserAreaTestDialog : public GeDialog   
{   
public:   
     virtual Bool CreateLayout();   
     virtual Int32 Message( const BaseContainer& msg, BaseContainer& result );   
     virtual Bool CoreMessage( Int32 id, const BaseContainer &msg; );   
     void Update();   
     UserAreaLinkBox ua;   
};   
  
Bool UserAreaTestDialog::CreateLayout()   
{   
     SetTitle( "UserAreaTest" );   
     Update();   
     return true;   
}   
  
Int32 UserAreaTestDialog::Message( const BaseContainer& msg, BaseContainer& result )   
{   
     switch (msg.GetId())   
     {   
          case BFM_DRAGRECEIVE:   
               if (msg.GetInt32(BFM_DRAG_LOST))   
               {   
                    GePrint("BFM_DRAG_LOST");   
               }   
  
               if (msg.GetInt32(BFM_DRAG_FINISHED))   
               {   
                    GePrint("BFM_DRAG_FINISHED");   
               }   
  
               if (CheckDropArea(200, msg, true, true))   
               {   
                    GePrint("CheckDropArea");   
               }   
               break;   
          default:   
               break;   
     }   
     return GeDialog::Message( msg, result );   
}   
  
void UserAreaTestDialog::Update()   
{   
     LayoutFlushGroup(100);   
     FreeChildren(100);   
     GroupBegin(100, BFH_SCALEFIT, 1, 1, "", BFV_BORDERGROUP_FOLD_OPEN, 0);   
     {   
          C4DGadget* c4dgadget = AddUserArea(200, BFH_SCALEFIT, 100, 20);   
          if (c4dgadget)   
               AttachUserArea(ua, 200);   
     }   
     GroupEnd();   
     LayoutChanged(100);   
}   
  
Bool UserAreaTestDialog::CoreMessage( Int32 id, const BaseContainer &msg; )   
{   
     switch( id )   
     {   
          case EVMSG_CHANGE:   
               Update();   
               break;   
     }   
     return GeDialog::CoreMessage( id, msg );   
};   
  
class UserAreaTest : public CommandData   
{   
     INSTANCEOF( UserAreaTest, CommandData )   
public:   
     virtual Bool Execute( BaseDocument* doc );   
     virtual Bool RestoreLayout( void* secret );   
     static UserAreaTest* Alloc() { return NewObjClear( UserAreaTest ); }   
private:   
     UserAreaTestDialog _dialog;   
};   
  
Bool UserAreaTest::Execute( BaseDocument* doc )   
{   
     if( _dialog.IsOpen() == false )   
          _dialog.Open( DLG_TYPE_ASYNC, IDS_UserAreaTest, -1, -1, 400, 400 );   
     return true;   
}   
  
Bool UserAreaTest::RestoreLayout( void* secret )   
{   
     return _dialog.RestoreLayout( IDS_UserAreaTest, 0, secret );   
}   
  
Bool RegisterUserAreaTest( void )   
{   
     return RegisterCommandPlugin( IDS_UserAreaTest, String( "UserAreaTest" ), 0, nullptr, String( "UserAreaTest" ), UserAreaTest::Alloc() );   
}

GePrint ("BFM_DRAG_LOST");
GePrint ("BFM_DRAG_FINISHED");
Please tell me how to get to.
Or please tell me if there is better usage.

Helper

On 26/12/2017 at 00:06, xxxxxxxx wrote:

I have now seen the fact of shock.
I accidentally saw this forum with a different personal computer.
When searching using the keyword of drag, the same question hit a lot.
I noticed the cause was investigated.
When this forum is logged in, the search result is greatly reduced.
Why is this forum constantly watching nearly 100 people. I was concerned that there was only one or two people logging in.
I will not be able to recover for the time being.