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Very interesting! I never knew that bitmaps can be used in such a way.

Internet Explorer can render gradients. SVG (partially supported in Bon Echo/FF2, IE7 and most newest browsers) can also display scalable gradient images (maybe PNG as well). Don't forget that some 98%-99% of Windows users have Macromedia Flash 5+ installed (shipped with Win XP I think) and Flash uses vector graphics.

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[EDIT] I wrote non-sense!
Note that if you use AltSubmit, you won't have gradient, so this trick works mostly with BMP images (not a problem as these images are very small)!

Goyyah: I like this topic, but changing the subject makes hard to search the old sub-topics (where did I saw this text-with-shadow effect?). You don't have to change the way you manage it, but I wanted to draw attention to the problem.

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vPhiLho := RegExReplace("Philippe Lhoste", "^(\w{3})\w*\s+\b(\w{3})\w*$", "$1$2")

Dear Titan,



Thanks for the information!

I have been using outdated software .
I tried stretching a 1x2 JPEG in a (table) cell (Dreamweaver 3) and it did not result in a gradient fill!.
Even as a Stretched Wallpaper, it did not display a gradient fill with Active Desktop enabled.

My OS is W2K - SP4

Regards,

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You inspired me for an improvement of background color for texts.

@Goyyah: I wasn't clear in my remark on the topic: when I wrote "Where did I saw this text-with-shadow effect?", it is the kind of question I ask myself when I take a quick look at the list of topics in the Scripts & Functions section or even in a Search result! Hence the remark.

@Titan: It seems that Goyyah tried to put something like <img src="Images/2pixelsH.bmp" width="100" height="100" /> in an HTML file and got two distinct colors.
Note that SVG is already supported (perhaps only partially) by Firefox 1.5.

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vPhiLho := RegExReplace("Philippe Lhoste", "^(\w{3})\w*\s+\b(\w{3})\w*$", "$1$2")

Looks nice!
I used a 2x2 Pixel-Bitmap already to draw a flexibel surrounding border (like the highlight-option in Winspector). But this scaling ability is new for me

Thalon

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Thanks Thalon!

Dear PhiLho,



I saw it. Very nice effect!



I get it now! .

Please wait for the Part 2. I will be requiring your valuable opinion.

Regards,

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Title post has been updated:

--> An example for Horizontal Linear Gradient

• OSD Volume Control (Added 24-May-2006)

Dear PhiLho,

In your Post

You wrote:

Yes! I just noticed . I was not interested in JPG - because for this particular resolution (1x2) , BMP was sized @ 62 byes whereas JPG was 512 bytes. Also the file format of BMP is very simple and we could easily create one dynamically.

Regards,

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Dear Angie,

I am not much clear about your requirement, but try the following code and then post further queries:



The above code requires: BitmapGradient.ahk

My guess is that you are interested in creating some bar chart.. and that will be very interesting . Do not hesitate to post further queries.

Regards,

I like how I am incorporated into the GUI I feel famous

Great looking code. May I ask, how this could be tweaked to do two things:

1) Have a var_input = %, so the 50% is flexible

2) To turn this into a callable function, so the display is updated when the function is called. I envision something like UpdateGraph(var_width, var_height, var_start_color, var_end_color, var_input). I don't know how piped in variables/functions perciely work under AHK (I can think JavaScript . This is really giving me quick-ramp up to its protocols so I apprecaite your descriptions so much. So I would envision this to be called like UpdateGraph(250,250,0208FF,FFFFFF,50%) <- I know that is wrong all-together, but u get the idea I hope

That will make it real flexible, simple and modular. Hopefully you think that is right software protocol.

Thanks for advancing my original idea!

-AngieX%

No. That is not possible CreateBMPGradient()! That function has been hardcoded to create a 2 pixel bitmap. Each pixel will occupy half the control 50:50. If you want 33:66, then the function has to re-written to accomodate 3 pixels. Say for blue n black it would be blue+black+black, and effectively blue would occupy 33.33% and black 66.66%

Hope you get that right.



Writing such a wrapper function id redundant, IMHO. Just assign a variable (like MyPic ) to the picture control and call the GuiControl command to change the picture ( or its dimension )

Try this:



Try Shift+functions to test the changing of background gradient.

I am trying to cram this all in my head, but do follow your logic soundly!

two questions -

What does 1 signify?
% CreateBMPGradient("bg.bmp","000000","FF0000",1) < what is 1?

Can this be further explored, the idea to have a % input - to basically have a BMP assignment, for 1%, 2% to 100%. Just 1-100 to keep it simple. Each one has a mathamatatial computation to some BMP configuration, then its pumped into BMP.

So, 16% would flow like:
% CreateBMPGradient("bg.bmp","16%","000000","FF0000",1)

I am way way over my head actually writing it out, but maybe if I can see some ways you write, I can follow the rythum for improving this object. I have some other ideas to make this more interesting, like a decay? -- so if a 16% was pumped in, then a 42% three seconds later, it will kick back up, but not in a fast skippy way. Kinda like a very nice car stereo equalizer.... so it look real smooth, remain live and programmable. Do you see where I am going with this? I think it will be fun to mess around with.

1 creates a vertical stack of two pixels whereas 0 creates a horizontal one.
The parameters have been explained in the original post.



Well.. My function creates only a 2 pixel bitmap, which - when - stretched to abnormal limits - creates a gradient effect. It is a kind of simulation. For your requirements, You might have to create a full sized bitmap to achieve proper results which is beyond the scope of CreateBMPGradient() function.

I will give it a try when I have time and post again.

Regards,

PS: Sorry for the late reply. Offlate, I have not been frequenting the forum.