How to draw into a jpeg image

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#461

From: Mario Sernicola
Date: Tue, 01 Jun 2004 19:23

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Hi,

I've a TImage that contains a JPEG image

I'd like to draw on it but when I try to draw a point or a line with

//--------------------------
...
         tagPOINT mousepos;
         GetCursorPos(&mousepos);
         int x = mousepos.x - Left;
         int y = mousepos.y - Top;
         Timage1->Canvas->Pen->Width = 1;
         Timage1->Canvas->Pen->Mode = pmNot;
         Timage1->Canvas->Ellipse(x, y, x+3, y+3);
//--------------------------

a message error appears:

"Can only modify an image if it contains a bitmap"

How can I draw on TImage either if it contains a BMP or JPG???

Thanks

Mario Sernicola

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Subject: How to draw into a jpeg image
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