Thought I should brighten up my app

with an hierarchical list box,

but I have problems with the bitmap on level 1.

All other levels are fine.

My bitmaps are standard Windows 16 colours.

I use OIWG 3.3.

Is this something that's been fixed in later versions?

Here is my first attempt

(I've resized all the images by 4

to make things easier to see):

Bitmap:

Here is the result:

As you can see the two grays (RGB 192,192,192

and 128,128,128) show as white in the upper half

of image 1 but are fine in the lower half.

In my second attempt I just switched around

image 1 and 2:

Bitmap:

Here is the result:

As you can see the problematic image shows fine

at level 2.

After that I tried with all the 16 colours

in image 1:

Bitmap:

Here is the result:

Now certain colours in image 1 turn white

no matter where in the image they are.

When I tried with a different "rainbow" layout

other colours turned white.

- Oystein -

Sorry - mixed my gifs and jpegs.

Here is everything once more:

---

Thought I should brighten up my app

with an hierarchical list box,

but I have problems with the bitmap on level 1.

All other levels are fine.

My bitmaps are standard Windows 16 colours.

I use OIWG 3.3.

Is this something that's been fixed in later versions?

Here is my first attempt

(I've resized all the images by 4

to make things easier to see):

Bitmap:

Here is the result:

As you can see the two grays (RGB 192,192,192

and 128,128,128) show as white in the upper half

of image 1 but are fine in the lower half.

In my second attempt I just switched around

image 1 and 2:

Bitmap:

Here is the result:

As you can see the problematic image shows fine

at level 2.

After that I tried with all the 16 colours

in image 1:

Bitmap:

Here is the result:

Now certain colours in image 1 turn white

no matter where in the image they are.

When I tried with a different "rainbow" layout

other colours turned white.

- Oystein -

Now I got the third pair of images wrong.

Here goes again:

---

Thought I should brighten up my app with an hierarchical list box,

but I have problems with the bitmap on level 1.

All other levels are fine.

My bitmaps are standard Windows 16 colours. I use OIWG 3.3.

Is this something that's been fixed in later versions?

Here is my first attempt (I've resized all the images by 4 to make things easier to see):

Bitmap:

Here is the result:

As you can see the two grays (RGB 192,192,192

and 128,128,128) show as white in the upper half

of image 1 but are fine in the lower half.

In my second attempt I just switched around image 1 and 2:

Bitmap:

Here is the result:

As you can see the problematic image shows fine at level 2.

After that I tried with all the 16 colours in image 1:

Bitmap:

Here is the result:

Now certain colours in image 1 turn white no matter where

in the image they are. When I tried with a different

"rainbow" layout other colours turned white.

- Oystein -

Hi Oystein,

What you are getting is a known 'feature' of heirarchical list-boxes that has to do with the FloodFill algorithim used to draw the first image (and, if I recall correctly, determining the background colour).

I brought this topic up on Compuserve a couple of years ago and Gene gave me a very detailed answer as to why this was..so if your archives go back that far you could have a look for the answer there (mine don't I'm afraid..)

AFAIK the only workaround is to enclose your image in a black border, which should preserve your colours within it, as the FloodFill call stops at black (hence the preservation of the colours in the two corners of your example 3)

[email protected]

Sprezzatura Ltd

World Leaders in all things RevSoft (Except VIP)

Carl,

Thanks! I'll use the workaround.

- Oystein -

PS. Is there also a reason why when you look at

the LIST property there seems to be something

missing in the text at level 1? There is just

"1:…" and I expected "1-1:…". All other

levels have "n-n:…".

Oystein,

]]PS. Is there also a reason why when you look at

the LIST property there seems to be something

missing in the text at level 1? There is just

"1:…" and I expected "1-1:…". All other

levels have "n-n:…".Sprezzatura Ltd[/url]

World Leaders in all things RevSoft (Except VIP)

Carl,

I managed to stop the fill by having just *one*

black pixel at the upper left corner!

(If you remember, my first image was a landscape

with some houses, and I can just say the black

pixel is a crow or something. )

- Oystein -

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