Euroscope Plugin - OnMoveScreenObject Question

[Kent Dong 1191810]

I'm new to ES plugin development. Now I'm having a problem with OnMoveScreenObject.

 

First I move a screenobject on the radar screen. Then I hold the left mouse button on a blank area and move the cursor. The previous moved object suddenly appears under the cursor and moves.

 

Does anyone have a clue about how to fix this?

 

Below is the code snippet which I think is related to the issue. Hope it is helpful for you to understand the issue.

 

void CHelloWorldScreen::OnRefresh(HDC hDC, int phase)
{
   if (phase != REFRESH_PHASE_AFTER_LISTS)
   {
       return;
   }

   char * text = "Hello World";
   Rectangle(hDC, m_Rect.left, m_Rect.top, m_Rect.right, m_Rect.bottom);
   AddScreenObject(12345, "Hello World", m_Rect, true, "Yes, this is a test object.");
}

void CHelloWorldScreen::OnMoveScreenObject(int ObjectType, const char * sObjectId, POINT Pt, RECT Area, bool Released)
{
   m_Rect = Area;
   RequestRefresh();
}

 

Thanks.

[Todor Atanasov 878664]

Well that is what you wrote

In the OnMoveScreenObject add

 

if(strcmp(sObjectId,"Hello World") == 0){
   m_Rect = Area;
   RequestRefresh();
}

 

That will update your m_Rect only when you have clicked over it, and not just when you click on the screen.

[Kent Dong 1191810]

Well that is what you wrote

In the OnMoveScreenObject add

 

if(strcmp(sObjectId,"Hello World") == 0){
   m_Rect = Area;
   RequestRefresh();
}

 

That will update your m_Rect only when you have clicked over it, and not just when you click on the screen.

 

Thank you for the reply. I update the code as this, but the issue is still there.......

[Todor Atanasov 878664]

Oh now I got your problem

 

Try this (doing by memory as I'm not at home right now):

void CHelloWorldScreen::OnMoveScreenObject(int ObjectType, const char * sObjectId, POINT Pt, RECT Area, bool Released)
{
   m_Rect_Move = Area;
   m_Move_Str_temp = sObjectId;
   if(Released)
         m_Rect = Area;

   RequestRefresh();

}

 

On the function you are using to draw your rectangle

add this

 

 

if(strcmp(text,m_Move_Str_temp) == 0)
    Rectangle(hDC, m_Rect_Move.left, m_Rect_Move.top, m_Rect_Move.right, m_Rect_Move.bottom);
else
    Rectangle(hDC, m_Rect.left, m_Rect.top, m_Rect.right, m_Rect.bottom);

[Kent Dong 1191810]

I made changes following your instruction. But it's still not working.

 

Here is the latest code.

 

void CHelloWorldScreen::OnRefresh(HDC hDC, int phase)
{
   if (phase != REFRESH_PHASE_AFTER_LISTS)
   {
       return;
   }

   if (strcmp(m_MovingObject, OBJECT_NAME))
   {
       Rectangle(hDC, m_Rect.left, m_Rect.top, m_Rect.right, m_Rect.bottom);
   }
   else
   {
       Rectangle(hDC, m_RectMove.left, m_RectMove.top, m_RectMove.right, m_RectMove.bottom);
   }
   AddScreenObject(1, OBJECT_NAME, m_Rect, true, "Yes, this is a test object.");
}

void CHelloWorldScreen::OnMoveScreenObject(int ObjectType, const char * sObjectId, POINT Pt, RECT Area, bool Released)
{
   if (strcmp(sObjectId, OBJECT_NAME))
   {
       return;
   }

   if (!Released)
   {
       strcpy(m_MovingObject, sObjectId);
       m_RectMove = Area;
   }
   else
   {
       m_MovingObject[0] = 0;
       m_Rect = Area;
   }

   RequestRefresh();
}

[Gergely Csernak]

Well that is what you wrote

In the OnMoveScreenObject add

 

if(strcmp(sObjectId,"Hello World") == 0){
   m_Rect = Area;
   RequestRefresh();
}

 

That will update your m_Rect only when you have clicked over it, and not just when you click on the screen.

 

Thank you for the reply. I update the code as this, but the issue is still there.......

 

This version works for me fine.

[Kent Dong 1191810]

Sadly, it still doesn't work for me. Maybe I make a mistake elsewhere. A complete sourcecode package can be downloaded from here http://realch3cho.com/temp/HelloWorldPlugIn.zip. Could you take a look and help me out, please?

 

Thanks.

[Todor Atanasov 878664]

Just tested it and it is working without any modifications....

[Kent Dong 1191810]

Hi guys,

 

Sorry, the issue still exists on my side. Some more information can be downloaded via this link, including a screen video showing how this issue looks like, the complete source code of this test plugin (a VS2005 solution), a release dll built from the source code, and the corresponding VC++ Redistributable Package.

 

http://realch3cho.com/temp/OnMoveScreenObject%20Issue.zip

 

Could anyone help me out, please? Thanks

[Joao Pereira 1256632]

Sorry to revive this thread after so much time but I'm having the exact same problem. Did you manage to solve it Kent Dong?

 

Here's my code:

 

void CNew::ONREFRESH(...)

{

if(strcmp("Closebutton",m_MoveObjectId) == 0){

Rectangle(*dc, m_MoveArea.left, m_MoveArea.top, m_MoveArea.right, m_MoveArea.bottom);

dc->DrawFrameControl(&m_MoveArea,DFC_CAPTION,DFCS_CAPTIONCLOSE);

AddScreenObject(WINDOW_OBJ,"Closebutton",m_MoveArea,true,NULL);

}

else{

dc->DrawFrameControl(&rect3,DFC_CAPTION,DFCS_CAPTIONCLOSE);

AddScreenObject(WINDOW_OBJ,"Closebutton",rect3,true,NULL);

}

}

void CNew::OnMoveScreenObject(...)

{

if(strcmp(sObjectId,"Closebutton")==0){

m_MoveObjectType=Released ? 0 : ObjectType;

m_MoveObjectId=sObjectId;

m_MoveArea=Area;

RequestRefresh();

}

}

 

Can anyone help me solve this please?

[Joao Pereira 1256632]

So, I found out the problem but don't know how to solve it.

 

The problem is that sObjectId still points to "Closebutton" even after Released. So when i press the left button of the mouse anywhere on the screen it still thinks I'm trying to move the Close button.

 

I noticed this while debugging because if i move the Close button and then click on another screen object this problem does not happen (because sObjectId points at something else now)

 

How do i clean sObjectId after Released? More scpecifically, where is this sObjectId initialized?because I can't find it anywhere