BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Delphi Measurements, what are they?          BorlandTalk.com Forum Index -> Delphi Graphics View previous topic :: View next topic   Author Message Anthoni Gardner Guest Posted: Mon Sep 06, 2004 7:45 pm    Post subject: Delphi Measurements, what are they? Hello, I am wanting to display 'adverts' in my new program (for the free version) and I have selected where they should be placed in my gui. The adverts all need to be the same size, however I am finding it hard to convert Delphi's measurements (such as Width, Height, etc) into true Pixel sizes that Photoshop (or any other popular paint program) uses. Any one come across this before? For Example, my 'advert space' width in Delphi is 140, but this is not in pixels because when I create an image of this width it doesnt fit properly. Any help and guidance on this would be appreciated. Regards Anthoni --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system ([url]http://www.grisoft.com)[/url]. Version: 6.0.745 / Virus Database: 497 - Release Date: 27/08/2004 Back to top Camiel Wijffels Guest Posted: Mon Sep 06, 2004 7:57 pm    Post subject: Re: Delphi Measurements, what are they? Quote: For Example, my 'advert space' width in Delphi is 140, but this is not in pixels because when I create an image of this width it doesnt fit properly. Anthoni The width and height of the components and forms which Delphi reports is always in pixels. However your advert space might have a border or a bevel? Then the space is less ie 136 or 134 pixels. Furthermore in Photoshop one often works with DPI, which differs from pixels. If your image is 140 DPI (dots per inch), then the image may only by *one* inch wide. Cause if the image is fr example two inches wide then the number of dots (or pixels) is suddenly 280. -- Best regards, Camiel Wijffels Back to top Jacques Oberto Guest Posted: Mon Sep 06, 2004 8:54 pm    Post subject: Re: Delphi Measurements, what are they? Quote: The width and height of the components and forms which Delphi reports is always in pixels. However your advert space might have a border or a bevel? Then the space is less ie 136 or 134 pixels. Furthermore in Photoshop one often works with DPI, which differs from pixels. If your image is 140 DPI (dots per inch), then the image may only by *one* inch wide. Cause if the image is fr example two inches wide then the number of dots (or pixels) is suddenly 280. -- Best regards, Camiel Wijffels I think it would be easier to keep always the same aspect ratio for every advert and then do a stretchdraw. Jacques Back to top Anthoni Gardner Guest Posted: Mon Sep 06, 2004 9:34 pm    Post subject: Re: Delphi Measurements, what are they? Hi Jacques, Quote: I think it would be easier to keep always the same aspect ratio for every advert and then do a stretchdraw. All the adverts will have the same dimensions so this is not a problem. However, I dont understand what stretchdraw is. Can you elaborate please? Regards Anthoni --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system ([url]http://www.grisoft.com)[/url]. Version: 6.0.745 / Virus Database: 497 - Release Date: 27/08/2004 Back to top Jens Gruschel Guest Posted: Mon Sep 06, 2004 10:05 pm    Post subject: Re: Delphi Measurements, what are they? Quote: however I am finding it hard to convert Delphi's measurements (such as Width, Height, etc) into true Pixel sizes that Photoshop (or any other popular paint program) uses. Delphi uses pixel sizes. What might confuse you is ClientWidth / ClientHeight (without border) vs. Width / Height (with border). So if you set a form's Width and Height to some value, there is less space to draw to (the same is true for other containers with a border). So always set ClientWidth and ClientHeight, if you need a specific size for your drawings. Another topic you have to take care of: Delphi is able to resize a form if the screens DPI resolution differs (e.g. large fonts are enabled on the system), so set the Scaled property of your form to False, if you don't need it to be scaled (what's quite useful if labels, edit boxes or other text is used, which might be larger depending on the user settings). Jens Back to top Nils Haeck Guest Posted: Tue Sep 07, 2004 12:20 pm    Post subject: Re: Delphi Measurements, what are they? "Anthoni Gardner" wrote in message news:413cd7c6 (AT) newsgroups (DOT) borland.com... Quote: However, I dont understand what stretchdraw is. Can you elaborate please? Regards Anthoni See TCanvas.Stretchdraw in the Delphi help... 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