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Picture with 'ready to click places'?

Posted on 2000-03-21
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Last Modified: 2010-04-04
I have a picture in TImage and I want to make on him some places where 'onmouseover' change the cursor and when I click on it, it will open another picture in TIMAGE.
I know I can do it as more TIMAGEs and on every I want I can write onmouseover proc. Is there another way?
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Question by:neox
8 Comments
 
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Expert Comment

by:jeurk
ID: 2641277
If you want that I can send it to you :
==============================
 Component THotImage ver 2.12
==============================

Allows creating 'Hot Spots' on target image

THotImage derived directly from TImage,
thus have all features of ascentor+ additional events/properties.
There is also visual property editor for editing HotSpots property.
Mask Actions added. When mouse goes over or down at hot area
"spot" part of image can be replaced by part of MaskPicture


Delphi's version supported: D2,D3,D4
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Expert Comment

by:kotik
ID: 2641280
It's only a suggestion, try this:

var
  Position: integer;
begin
  SendMessage(RichEdit.Handle, EM_POSFROMCHAR, Position, 0
);
end;

Regarding to the Win32 Help:
A returned coordinate can be negative if the character has been scrolled outside the edit control's client area.

So you can get abs(Position) to get the real offset.

Regards,
Kot.

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Expert Comment

by:kotik
ID: 2641284
Sorry, this comment is for another question.

Regards,
Kot.
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Expert Comment

by:jeurk
ID: 2641303
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Accepted Solution

by:
Rubbie earned 10 total points
ID: 2642074
You can annalyze the position of the mouse cursor in the OnMouseMove event, and change the cursor accordingly.
For example, if you have a hotspot at position top:50, left:50 in your image and the hotspot is a square 10x10 you can write in the procedure for the OnMouseMove event:

if (X > 50) and (X < 60) and (Y > 50)   and (Y < 60) then Image1.Cursor:=crHandPoint
else Image1.Cursor:=crDefault;

You can have whatever you want cursor at different hotspots. Then, on the OnMouseDown event write the code you want, checking the coordinates where the user clicked.
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LVL 4

Expert Comment

by:jeurk
ID: 2643921
Hi,
This is what the component is doing for you.
Sometimes you may have very complex regions.
This will be a real pain to handle.
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Author Comment

by:neox
ID: 2644634
ok, thank u all!!!
 neoX:-)
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Expert Comment

by:jeurk
ID: 2729894
hello neox,
Maybe you coul accept or reject the question.
What did you used to solve your problem.
this you used my component or did you do like rubie says ?
a thank U is great, but we also want the points...
Thanks.
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