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Prabhu S · Guest

Hi,

I have installed Diagram Studio for Borland C++ Builder 6.0 from TMS Software.

Diagram Studio gives an Object called atDiagram1 where we can draw flow chart Blocks, Electric Blocks, Lines, Arrow Blocks etc...

We can also load a Bitmap Image as a Background Image for atDiagram1.

The Code which I used to Load the Bitmap is as follows,

CODE1:
======
Graphics::TBitmap *BrushBmp = new Graphics::TBitmap;

//Creation of Canvas Over the atDiagram1 Display area
TCanvas *BackgroundCanvas = CfrmNCD->atDiagram1->Background->Bitmap->Canvas;

// Load the Image as Background Image for NCD Window
try
{
BrushBmp->LoadFromFile(astrPathName);
CfrmNCD->atDiagram1->Background->Visible = true;
CfrmNCD->atDiagram1->Background->Bitmap->Width = Screen->DesktopWidth;
CfrmNCD->atDiagram1->Background->Bitmap->Height = Screen->DesktopHeight;
BackgroundCanvas->Brush->Bitmap = BrushBmp;
TRect DrawRect;
DrawRect = Screen->DesktopRect;
DrawRect.Bottom = DrawRect.Bottom - 90;
BackgroundCanvas->StretchDraw(DrawRect,BrushBmp);
}
catch(EInOutError & e)
{
delete BrushBmp;
return false;
}
catch (Exception &exception)
{
delete BrushBmp;
return false;
}
delete BrushBmp;

I can also use the following code to Load the Image as Background for atDiagram1,

CODE 2:
=======

atDiagram1->Background->Visible = true;
atDiagram1->Background->Bitmap->LoadFromFile(astrPathName);

But there is no property to set for Stretching the Image.
There is a Property where we can choose only one the following Options,

a. Tiled
b. Fixed

There is no option like Stretch for Stretching the Image.

I asked TMS Software. They Replied that there is no such Option.

So I Used CODE 1 where it creates a canvas and draws the Image on canvas after stretching it.

The Problem is,

If I Use CODE1:
===============

When Backgound Image is not Present and If I move the Blocks displayed over the atDiagram1, there is NO Memory Leak.

When I Load the Background Image, and If I move the Blocks displayed over the atDiagram1, there is a huge Memory Leak.

If I use CODE 2:
===============

When I Load the Background Image and If I Move the Blocks displayed on atDiagram1, there is no huge Memory Leak.

Why It happens ?

Is there any way to stretch the Image before loading ?

Thank you.

Regards,
Prabhu S