Calculating the placement of VCL components on Form
Good Day, I am attempting to place components (VCL) on a form in a manner where the appearance of the form is important. I have set the form size at 880 x 1200 (height and width), then place two edit boxes so that the one on the left side of the screen begins 16 pixels from the left edge and the one on the right side ends 16 pixels from the right edge. Each edit box is 250 pixels wide (at least I think all of the size integers in the Object Inspector are in pixels). So the left most edit box has a left value of 16. However, when I set the right most edit box at (1200 - 16 -250) or 934, it does not appear in the proper place on the displayed screen when the program executes. I am also using the Elasticform VCL which resizes the form to the screen height and width. I really hope that this problem is not caused by Elasticform, as I do not know of any reasonable replacement for it. If you believe that Elasticform is causing the problem, what settings should I change on it? What am I doing wrong? Any advice will be greatly appreciated. Thank you John Shyer
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John
8/5/2015 7:36:40 PM
embarcadero.delphi.general
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John wrote: > at least I think all of the size integers in the Object Inspector are in pixels Yes, they are. > However, when I set the right most edit box at (1200 - 16 -250) or 934, > it does not appear in the proper place on the displayed screen when the > program executes. Where exactly does it appear? > I am also using the Elasticform VCL which resizes the form to the screen > height and width. I really hope that this problem is not caused by > Elasticform, as I do not know of any reasonable replacement for it. Did you configure the right-side TEdit to reposition itself whenever the Form resizes? Are you using Anchors for that? The default Anchors is [akLeft,akTop]. If you need the right-side TEdit to always be 16 pixels from the right edge of the Form, you have to position the Edit where needed (Left=934) and then set its Anchors to [akRight,akTop] instead to maintain that relative position as the Form's Width changes. -- Remy Lebeau (TeamB)
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Remy
8/5/2015 8:10:49 PM
John If its ElasticForm (and I agree I have yet to find a replacement) try disabling resolution independence. Its also possible that the sequence of events means that the form is resized and then you try and position the edit boxes using the old form sizes. If you're using actual numbers rather than properties (Form.Width & Edit2.Width) that can screw up nicely. Roy Lambert
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Roy
8/7/2015 3:38:00 PM
One thing I have found quite handy is to use ClientWidth and ClientHeight instead of the Width and Height properties of the form. That helps prevent issues of border width and similar messing with your math.
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Carl
8/10/2015 8:10:52 PM
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