forum.vdsworld.com

Vic D'Elfant · Posted: Fri Jan 23, 2004 9:28 am Post subject:

I though that TRANSPARENT bitmap style would work with all dialog styles.. Confused

Vic

jules · Posted: Fri Jan 23, 2004 11:33 am Post subject:

Serge · Posted: Fri Jan 23, 2004 12:36 pm Post subject:

be careful with the use of bitmaps and ico files...i have found that the bitmap only displays the top left 1/4 of the ico file ... to make it display properly, i have had to design 32x32 icons and only use the top left 1/4 as if i was designing a 16x16 icon and ignore the rest...not sure how all this works but it does work...for me anyway...anyone else found the same "problem"?

serge

jules · Posted: Fri Jan 23, 2004 2:06 pm Post subject:

Yes, I've been doing just that myself for years.

Serge · Posted: Sat Jan 24, 2004 12:58 am Post subject:

good that you confirmed it for me jules...is it a vds problem in that it does not display ico bitmaps properly or is it an ico problem that other programming languages also have a problem with?

serge

jules · Posted: Sat Jan 24, 2004 9:21 am Post subject:

Transparent bitmaps as such don't exist in Windows, and the facility has not been implemented in Delphi, therefore VDS does not have it. Icons can have transparency because they contain two bitmaps, one the picture, the other a mask. A transparent bitmap would have to be implemented using special code to draw the bitmap, using one color to indicate the transparent area. This could be done either by using a pixel at one corner of the bitmap (which is how the bitmaps in the BIT... dialog elements are used) or by getting the user to specify the transparent color. So it would not be impossible for VDS to have transparent bitmaps, it's just that nobody thought about adding the capability at the time.

FreezingFire · **Admin Team** Joined: 23 Jun 2002 Posts: 3508

Actually the TRANSPARENT style works for bitmaps if you apply the
INVISIBLE style to the dialog. Smile

PGWARE · **Web Host** Joined: 29 Dec 2001 Posts: 1566

FreezingFire · **Admin Team** Joined: 23 Jun 2002 Posts: 3508

I think the VDS runtime is compiled in Delphi 2. Smile

Skit3000 · Posted: Sat Jan 24, 2004 8:22 pm Post subject:

I believe VDS 5 was compiled in a later version of Delphi...

FreezingFire · **Admin Team** Joined: 23 Jun 2002 Posts: 3508

Perhaps, but I thought the IDE was just compiled in VDS 5.

Skit3000 · Posted: Sat Jan 24, 2004 8:24 pm Post subject:

Serge · Posted: Sun Jan 25, 2004 12:22 am Post subject:

thanks for your reply, jules...i was more after an explanation why we have to design ico files only for the top left 1/4 of a 32x32 ico file in order to have it displayed properly in vds as a 16x16 ico bitmap

serge

CodeScript · Posted: Sun Jan 25, 2004 2:03 am Post subject:

But having transparency for bitmaps on Normal Dialogs may look nice Smile

It shows real transparent bitmaps meaning that you can see the dialog background/text through the transparent area(s).

As for displaying icons of various sizes and even ability to resize them(zoom) or use flicker free animations form a series of icons, variable size aniicons I was on a DSU but the work has been left half way Sad