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#1 Posted : Wednesday, June 11, 2008 5:36:27 AM(UTC)

aah  
aah

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Posts: 12


Hi
i am trying to do the same thing by getting all the pPoint of the region and passing them to the procedure AnnDefine.
To get the pPoint of the region perimeter i try to use the GetRgnContourPoints procedure.
So my question is how can i acces to individual pPoints returned by the GetRgnContourPoints procedure?
Thanks for your help and sorry for my so poor english
 

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#2 Posted : Thursday, June 12, 2008 3:53:42 AM(UTC)

Yasir Alani  
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Are you also using v15? What is your programming interface?


 


What type of region are you trying to acquire (rectangle, polygon, etc.)?

 
#3 Posted : Thursday, June 12, 2008 4:00:43 AM(UTC)

aah  
aah

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Posts: 12


I uses V14 under delphi 2005
I am trying to acquire free hand region

 
#4 Posted : Sunday, June 15, 2008 1:28:24 AM(UTC)

Yasir Alani  
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If you are using the VCL LEAD Main (or Annotations) control, you can get the region contour points like this:
// In the Var section:
pPoints: pPoint;
PtSize: Cardinal;
i : Integer;
// Code snippet
LEADAnn1.GetRgnContourPoints(pPoints, PtSize);
For i := 1 to PtSize do
Begin
//Point number i sax X/Y coordinates of pPoints.X and pPoints.Y
inc(pPoints); // move to the next point in the array of points
End;

However, it will not be easy to convert these points to an annotations object, because the points will not trace the contour from the outside. The will list all region contour points from top to bottom and from left to right (line by line, horizontally).

If you want to get the points as they are being drawn by the user, you can capture the movement using the MouseMove event and store the points.
 
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