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Raymond175 · Contributor Joined: 24 Apr 2002 Posts: 72

Hello,

I've been looking all evening for a replacement for the "DIALOG ADD, BITMAP" function to add an image (BMP/JPG/GIF) to my dialog on a tab. I also want to resize the image and keep the aspect ratio, so I want to be able to retrieve the (original) width/height of the image.

The reason I want this is that I want to create some sort of photo-album. So I have to be able to load the photos and resize them for thumbnails while keeping the aspect ratio. I've looked at a lot of external dll-files, but I could not find anything working yet... Does anyone know a solution for my "problem"?

Thanks,
Raymond

Aslan · Posted: Sun Mar 09, 2008 9:57 pm Post subject:

With VDS 6 look at the IMAGE element.

With VDS 5 look at the VDSOBJ.DLL from PGware.

With VDS 3,4,5 also look at VDSIMAGE in the VDSDLL 3 from TomSoft

BTW - Anyone know what ever happened to Tommy???

Raymond175 · Contributor Joined: 24 Apr 2002 Posts: 72

I'm "still" using VDS 5, and I noticed that the VDSIMAGE did not work on tab elements; it just draws the image behind the tab element.

I had more success using VDSOBJ, but I was not able to get the width/height of the image so I was unable to resize the image with some calculations. I cannot believe that you are not able to get the actual image size with this extension, so does anyone know how to do this?

And I haven't seen, nor spoken Tommy since I bought the VDSDLL from him a couple of years ago... Sad

Thanks,
Raymond

Aslan · Posted: Sun Mar 09, 2008 11:24 pm Post subject:

Just a thought, are you adding the image after or before the tab element?

Raymond175 · Contributor Joined: 24 Apr 2002 Posts: 72

I have a TAB element containing a LINE element as element container. All elements that should appear on the tab will be placed on the LINE element. This way I can easily hide or remove all elements on the tab at once.

Using VDSIMAGE the image was drawn behind the TAB and/or LINE element. It did not matter if I first declared the TAB/LINE elements or the image...

PGWARE · **Web Host** Joined: 29 Dec 2001 Posts: 1565

The VDSOBJ will work, there are commands and functions to use that are well documented in the help file.

Use OBJECT ADD, with the GRAPHIC dialog element. There is a style AUTOSIZE - which automatically will change the size of the dialog element control to fit the exact width/height of the image. There is also a STRETCH style allowing you to stretch the image.

Then use the @object(DLGPOS) function to determine the top, left width and height of the GRAPHIC dialog elment.

%A = @OBJECT(DLGPOS,GRAPHIC1,TLWH)
warn %A

returns the top, left, width, and height. You can specify T = top, L = left, W= width, H = height in any order and if you only want one value. Values are seperated by the | character which you can use the vds PARSE command to parse.

There is also the vdsconv extension which works with images directly (not placed on dialog) that lets you get the image width and size, also allows converting jpeg to bmp, gif to bmp, gif to jpeg, jpeg to gif, bmp to jpg and bmp to gif. This extension also allows you to crop and resize images.