Scaling Form-Screen Resolution

[Robert F. Tulloch]

Hello:

I am trying to scale form as I do in Delphi-TI2861. I see no such
info for CPP.
In Delphi use TFooClass/TControl to access protected font property.
Can't get something similar to work in CPP. Anyone have any experience
with scaling in CPP?

Thanks

Best regards

[ea...@my-deja.com]

Try "ScaledBy()".
Save the "PixelsPerInch" of your development system in a #define or
constand, and get the "PixelsPerInch" of the runtime system.
Use these two values in "ScaledBy()".

Helmut

In article <37536440...@ibm.net>,

Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.

[ea...@my-deja.com]

This is a correction to my last posting:

Correct is: "ChangeScale()" [instead of "ScaledBy()"

Helmut

In article <7ivtb1$uli$1...@nnrp1.deja.com>,

[Mark Cashman (TeamB) (BCB)]

Robert -

Please post your question in

borland.public.cppbuilder.vcl

which is the best forum for questions about forms, components and user
interface issues.

Also consider searching http://www.deja.com. There have been several
threads in recent months on this issue.

Hope this helps.

--
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http://www.temporaldoorway.com
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[Robert F. Tulloch]

Hi:

I posted it here because there is no Programming NG and I thought
this most appropriate.
Thanks.
Best regards

[Robert F. Tulloch]

Hi:

Tried searching per your suggestion. Found many on Delphi and MS.
None related to BCB. Perhaps search was wrong structure. Any
suggestions?

Thanks

Best regards

[Stefan Hoffmeister (TeamB)]

: "Robert F. Tulloch" <tul...@ibm.net> wrote:

> Tried searching per your suggestion. Found many on Delphi

Delphi and BCB are the same beast in a different language.

--
Stefan Hoffmeister (TeamB) http://www.econos.de/
Please do apply judgement when sending email.

[Robert F. Tulloch]

Hi:

Don't know about that. I have already found differences in the
vcl(specifically in TDBNavigator: No BeforeAction in BCB). Anyway, I
have the scaling working fine in Delphi. Works perfectly (except 640 x
480). Cannot get it anywhere near working in BCB using exact same
approach. I will try again.

Thanks

Best regards

[Stefan Hoffmeister (TeamB)]

: "Robert F. Tulloch" <tul...@ibm.net> wrote:

> Don't know about that. I have already found differences in the
>vcl

I specifically ran a DIFF on the complete Delphi 4.03 and C++Builder 4.00
source code.

There were no material differences.

[Robert F. Tulloch]

Hi: Had to quickly change and repost this as it was an abortion I had
commented out!!

"Robert F. Tulloch" wrote:
>
> Well unfortunately, I am using BCB 1 and Delphi 3. Out of touch I guess.
> Anyway, the following:
> ----------------------------------------------------------
> From header file:
>
> class TFooClass : public TWinControl
> {
> __published:
__property Controls;
> __property Font;
> public:
> TFooClass();
> };
>
> -----------------------------------------------------------
> Part of FormCreate
>
> if (Screen->Width == ScreenWidth) {
> Height = Height * floor(ScaledScreenHeight/ScreenHeight);
> Width = Width * floor(Screen->Width/ScreenWidth);
> ChangeScale(Screen->Width, ScreenWidth);
> Factor = (Width/OldFormWidth);
> for(int i = 0; i < ControlCount; i++ )
> FooClass->Controls[i]->Font->Size = Factor * FooClass->Controls[i]->Font->Size;
> }
>
> Resizes the form but fails on the font scaling. FooClass is a new
> TFooClass. ControlCount shows in watch as 2 when there are probably 50
> controls on the form. Have had all sorts of weird things. At one point
> it said the * was an invalid pointer ref. but that "went" away. Error is that Font is not accessable.
>
> Best regards