Microsoft Visual Basic: zoom in rich textbox

my program uses a rich textbox, and i just noticed if i hold ctrl while i scroll with the mousewheel, that the document zooms in and out. it also works in Wordpad. so i'm guessing this is a function of RTF boxes, but i can't find a way to do it. what gives?

Keywords & Tags: zoom, rich, textbox, microsoft, visual basic, vb

URL: http://www.programmerbase.com/visual-basic/560747/

«« Prev - Next »» 3 helpful answers below.

i can't find a way to do it. what gives?
Find a way to do what? Capture the mousewheel event or zoom the text ?
If you want to zoom the text just increase the font size.

sahir | Fri, 09 Nov 2007 20:37:00 GMT |

well, it automatically zooms, so i wouldn't be changing the font size manually. and even capturing the scroll event, that doesn't tell me how much zoomed it is. like, what percent. i figured there was a way to find all this info with api or something.

gnznroses | Fri, 09 Nov 2007 20:38:00 GMT |

I presume you need to display the zoom percentage.

1) If you want to capture the event you need to listen for WM_MOUSEWHEEL not WM_SCROLL

2) Zoom percentage can be determined from the font size. Read the current font size and calculate the zoom percentage when the text box receives a WM_MOUSEWHEEL. If the contol key is not pressed the zoom percentage will not change so you don't have to worry about the control key.

sahir | Fri, 09 Nov 2007 20:40:00 GMT |

Microsoft Visual Basic Related Links

Microsoft Visual Basic Hot Answers

Zuperman!
:eek2: http://www.vbforums.com/showthread.php?p=2829958#post2829958Well, you seem just to have triggered it through a particular set of circumstances, whatever they may be...Lex Luthor strikes again!!!:)...
Zuperman Returns
He was always here with us. (http://www.vbforums.com/member.php?u=13510) :afrog:...
Zuperman
Happy Birthday seor!...
zuperman
I have more zells than you....
Zune or IPod or Other?
I'm looking for a video/mp3 player.Does anyone know what video formats Ipod / Zune supports?I have a large variety of codecs and video formats, OGMs with *.sub subtitle text files, MKVs, the most importantly DIVX AVIs.Am I wrong or do Ipod only support MOV videos, and Zune only support WMV...

Microsoft Visual Basic New questions

ZZ 9 Plural Z Alpha
I'm sure you have all heard of the sad demise of Mr Douglas Adams, earlier this week, of a heart attack at age 49.He was a source of inspiration to me in particular, having grown up repeatedly listening to the Hitch Hiker's Guide To The Galaxy, and reading all his books.He will be miss...
Zune 2.0
Anyone know when it's coming out?...
Z-Scores and Probability in Visual Basic
I have the z-score value and what i need is the correspondingprobability. I can determine it with a table like this one:http://www.epatric.com/documentatio...core_table.htmlBut i was wondering if there was a function in visual basic or a peiceof code that can calculate it for me without needing...
ZPL Label Printers
I'm looking for a way to send Visual Basic code directly to a Zebra brand label/barcode printer. The printer uses what is called zpl (zebra programming language). Has anyone worked with this? Any advice on getting started would be appreciated....
ZOrdering Windows
OK, I've made my own gaming engine with it's own pseudo-windows and what not. When it comes to render the windows onto the device context it becomes tricky if I want one window to appear in front or behind another window. I thought about ZOrdering but when a window is created what ZO...
Z-Order...??
Can someone explain what exactly Z-Order is...? And what exactly is it used for...?Cheers......
Zorder Question
Hi Guys,Just a quick and hopefully simple question, I'm working on an application that needs to always be at the very bottom of the zorder, i know how to send my app to the top but I need to know how to send it to the very bottom.Thanks....
Zorder of a label control
I am creating an activex control in which I have a 3rd party image control and a label control. I want the label control to be on top of the image control but it's always hidden beneath the image control. Is there any way I can make it come over top of the image contro?? I have played ar...
Zorder in Win 2k
Does Win 2k handle Zorder differently? All of my windows keep appearing at the bottom of the Zorder instead of the top when I spawn them.What the heck is going on?Eiredrake...
z-order from some components
some components e.g. the "spinButton" are not able to bring to front! Also i set z-order in code and choose option "Bring to front" With other components it's no problem!!! Can you help me?...

Microsoft Visual Basic Related Categories

Microsoft Visual Basic