WPF equivalent of TextOut()
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From: Peter Olcott on 12 Feb 2010 12:01 What is the Windows Presentation Foundation equivalent of the original Win32 API function TextOut()? BOOL TextOut( HDC hdc, // handle to device context int nXStart, // x-coordinate of starting position int nYStart, // y-coordinate of starting position LPCTSTR lpString, // pointer to string int cbString // number of characters in string );
From: Seetharam on 12 Feb 2010 12:23 WPF is a different paradigm... not like GDI. You would typically have a "Label"/"Content" element and you woudl assign the "Text" property with the text you want. -Seetharam
From: Peter Duniho on 12 Feb 2010 12:24 Peter Olcott wrote: > What is the Windows Presentation Foundation equivalent of > the original Win32 API function TextOut()? AFAIK, there is no WPF-specific API for that. WPF has a declarative object model, not an imperative model. To display text, you have to create a text output object (e.g. Label) and place it in the appropriate place within your visual data structures. That said, I believe that there's nothing to stop you from using either the Graphics.DrawString() method or the TextRenderer.DrawText() method, assuming that you do in fact have a Graphics instance to work with or equivalent. Pete
From: Andy O'Neill on 12 Feb 2010 15:18 "Peter Olcott" <NoSpam(a)OCR4Screen.com> wrote in message news:OoOdnc505ZPHFOjWnZ2dnUVZ_qednZ2d(a)giganews.com... > What is the Windows Presentation Foundation equivalent of the original > Win32 API function TextOut()? > > BOOL TextOut( > HDC hdc, // handle to device context > int nXStart, // x-coordinate of starting position > int nYStart, // y-coordinate of starting position > LPCTSTR lpString, // pointer to string > int cbString // number of characters in string > ); > What do you want to achieve? To put a piece of text in a specific part of the screen is a rather strange requirement for WPF. You could do it by having a canvas that covered the enture screen, Add a textblock as a child. Whack your text in . Position the text box. Make it on top of everything else. Done.
From: Peter Olcott on 12 Feb 2010 21:25
"Andy O'Neill" <aon14nocannedmeat(a)lycos.co.uk> wrote in message news:jIidn.44311$zD4.38578(a)newsfe19.ams2... > > "Peter Olcott" <NoSpam(a)OCR4Screen.com> wrote in message > news:OoOdnc505ZPHFOjWnZ2dnUVZ_qednZ2d(a)giganews.com... >> What is the Windows Presentation Foundation equivalent of >> the original Win32 API function TextOut()? >> >> BOOL TextOut( >> HDC hdc, // handle to device context >> int nXStart, // x-coordinate of starting position >> int nYStart, // y-coordinate of starting position >> LPCTSTR lpString, // pointer to string >> int cbString // number of characters in string >> ); >> > > What do you want to achieve? > > To put a piece of text in a specific part of the screen is > a rather strange requirement for WPF. > > You could do it by having a canvas that covered the enture > screen, > Add a textblock as a child. > Whack your text in . > Position the text box. > Make it on top of everything else. > Done. I want to put text on the screen so I can build my deterministic finite automaton glyph recognizer. www.OCR4Screen.com One aspect of this that I think the .NET platform may make simpler is handling Unicode, is this correct? If not, then the only reason (that I can currently see) is to use WPF is for the promised graphics hardware acceleration. |