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Finding the leftmost pixel in a piece of text when using GDI+left and right edges of the buttons to be a certain number of pixels from the start and end of the text, I need to know (or be able to calculate) the left and rightmost pixels of the text. However, this is a problem because not all letters have their leftmost pixel at the same X position. For example, when using the following font: Dim buttonfont As New Font("Arial", 19, FontStyle.Bold, GraphicsUnit.Point) and using the following lines to draw text: For i As Integer = 65 To 90 testgraphics.DrawString(Chr(i), buttonfont, Brushes.White, 0, 35 + (i - 64) * 20) Next The characters 'A' and 'J' start 2 pixels farther to the left than most other characters (there are also a couple other characters that are offset by 1 or 2 pixels). Is there any easy way to determine what X position the first and last pixel of a character is at? Because this depends on the font, the only way to do it manually would be to test each pixel. Is there a method that can be used to do this? Thanks. If this is an offline process, testing each column of pixels should be
enough. You could also try http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/fontext_52at.asp and in particular the GLYPHMETRICS structure that should allow to get the "box" in which the character is drawn... Patrice -- Show quoteHide quote"Nathan Sokalski" <njsokal***@hotmail.com> a écrit dans le message de news:OCD%23td5eFHA.2888@TK2MSFTNGP15.phx.gbl... > I am using GDI+ to generate buttons in my application. Because I want the > left and right edges of the buttons to be a certain number of pixels from > the start and end of the text, I need to know (or be able to calculate) the > left and rightmost pixels of the text. However, this is a problem because > not all letters have their leftmost pixel at the same X position. For > example, when using the following font: > > Dim buttonfont As New Font("Arial", 19, FontStyle.Bold, GraphicsUnit.Point) > > > and using the following lines to draw text: > > For i As Integer = 65 To 90 > > testgraphics.DrawString(Chr(i), buttonfont, Brushes.White, 0, 35 + (i - 64) > * 20) > > Next > > > The characters 'A' and 'J' start 2 pixels farther to the left than most > other characters (there are also a couple other characters that are offset > by 1 or 2 pixels). Is there any easy way to determine what X position the > first and last pixel of a character is at? Because this depends on the font, > the only way to do it manually would be to test each pixel. Is there a > method that can be used to do this? Thanks. > -- > Nathan Sokalski > njsokal***@hotmail.com > http://www.nathansokalski.com/ > > Do you know of anywhere where I can see an example? Thanks.
Show quoteHide quote "Patrice" <nob***@nowhere.com> wrote in message news:OcA9bt7eFHA.3712@TK2MSFTNGP09.phx.gbl... > If this is an offline process, testing each column of pixels should be > enough. > > You could also try > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/fontext_52at.asp > and in particular the GLYPHMETRICS structure that should allow to get the > "box" in which the character is drawn... > > Patrice > -- > > "Nathan Sokalski" <njsokal***@hotmail.com> a écrit dans le message de > news:OCD%23td5eFHA.2888@TK2MSFTNGP15.phx.gbl... >> I am using GDI+ to generate buttons in my application. Because I want the >> left and right edges of the buttons to be a certain number of pixels from >> the start and end of the text, I need to know (or be able to calculate) > the >> left and rightmost pixels of the text. However, this is a problem because >> not all letters have their leftmost pixel at the same X position. For >> example, when using the following font: >> >> Dim buttonfont As New Font("Arial", 19, FontStyle.Bold, > GraphicsUnit.Point) >> >> >> and using the following lines to draw text: >> >> For i As Integer = 65 To 90 >> >> testgraphics.DrawString(Chr(i), buttonfont, Brushes.White, 0, 35 + (i - > 64) >> * 20) >> >> Next >> >> >> The characters 'A' and 'J' start 2 pixels farther to the left than most >> other characters (there are also a couple other characters that are >> offset >> by 1 or 2 pixels). Is there any easy way to determine what X position the >> first and last pixel of a character is at? Because this depends on the > font, >> the only way to do it manually would be to test each pixel. Is there a >> method that can be used to do this? Thanks. >> -- >> Nathan Sokalski >> njsokal***@hotmail.com >> http://www.nathansokalski.com/ >> >> > > Try around :
http://cvs.sourceforge.net/viewcvs.py/numerator/test/FontTester/Form1.cs?rev=1.2 I've done a search using gmBlackBoxX (you could use any other name that belongs to this structure) on Google... Good luck. -- Show quoteHide quotePatrice "Nathan Sokalski" <njsokal***@hotmail.com> a écrit dans le message de http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/fontext_52at.aspnews:%23lFRkUDfFHA.3528@TK2MSFTNGP10.phx.gbl... > Do you know of anywhere where I can see an example? Thanks. > -- > Nathan Sokalski > njsokal***@hotmail.com > http://www.nathansokalski.com/ > > "Patrice" <nob***@nowhere.com> wrote in message > news:OcA9bt7eFHA.3712@TK2MSFTNGP09.phx.gbl... > > If this is an offline process, testing each column of pixels should be > > enough. > > > > You could also try > > Show quoteHide quote > > and in particular the GLYPHMETRICS structure that should allow to get the > > "box" in which the character is drawn... > > > > Patrice > > -- > > > > "Nathan Sokalski" <njsokal***@hotmail.com> a écrit dans le message de > > news:OCD%23td5eFHA.2888@TK2MSFTNGP15.phx.gbl... > >> I am using GDI+ to generate buttons in my application. Because I want the > >> left and right edges of the buttons to be a certain number of pixels from > >> the start and end of the text, I need to know (or be able to calculate) > > the > >> left and rightmost pixels of the text. However, this is a problem because > >> not all letters have their leftmost pixel at the same X position. For > >> example, when using the following font: > >> > >> Dim buttonfont As New Font("Arial", 19, FontStyle.Bold, > > GraphicsUnit.Point) > >> > >> > >> and using the following lines to draw text: > >> > >> For i As Integer = 65 To 90 > >> > >> testgraphics.DrawString(Chr(i), buttonfont, Brushes.White, 0, 35 + (i - > > 64) > >> * 20) > >> > >> Next > >> > >> > >> The characters 'A' and 'J' start 2 pixels farther to the left than most > >> other characters (there are also a couple other characters that are > >> offset > >> by 1 or 2 pixels). Is there any easy way to determine what X position the > >> first and last pixel of a character is at? Because this depends on the > > font, > >> the only way to do it manually would be to test each pixel. Is there a > >> method that can be used to do this? Thanks. > >> -- > >> Nathan Sokalski > >> njsokal***@hotmail.com > >> http://www.nathansokalski.com/ > >> > >> > > > > > > 
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