• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 189
  • Last Modified:

Resize Image when resizing Form

Hi I'd like to be able to resize an image1 while still keeping its aspect, when I resize the form.

so when I expand the form the image also expands, when I shrink the form the image also shrinks :)
0
eNarc
Asked:
eNarc
  • 2
1 Solution
 
BdLmCommented:
do you need to change the pixel size ?  There are many options for resize an image, from fast algo with low quality until excellent results using long calc time.

the cheap option is the stretch option in the image property
0
 
eNarcAuthor Commented:
mostly its just the image1.height and image1.width that need changing because if I was to change the image draw on resize it would amount so much memory that it would probly stall the computer.


like how we would keep that of a panel in line with the rest of the form, neeting an image to remain in aspect at the same time staying within the form as it moves :)
0
 
BdLmCommented:
you my try that code, fast procedure,

how to use:  

         MynewBitMap := ResizeBMP(OldBMP, newh, neww);



function ResizeBMP(FromBit:  TBitmap; new_h, new_w  :  Integer) : TBitMap;
var    Target   :  TBitmap;
begin
 
 
   Target:=TBitmap.Create;
 
   Target.PixelFormat := pf24bit;
 
   if ((new_h>10)  and (new_w >10)) then
      begin
          Target.Height  :=  new_h;
 
          Target.Width   :=  new_w;
 
          Target.Canvas.StretchDraw(Rect(0, 0, Target.Width, Target.Height), FromBit);
 
      end;
 
   result := Target;
end ;

Open in new window

0
 
sidneyeCommented:
On your Timage set Proportional=True, Stretch=True, Align=alClient.  You may need to move other components to a panel that you align to an edge but this is all you need.
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now