Create pixel dimensions of a text string

califax2k

Hi, I have the following problem: I want to know the width and height in pixels of a text string of a certain length. I tried using TextBox.GetRectFromCharacterIndex() but this didn't work. I suspect the reason is that the textBox has not been drawn before I invoked this method. I just assigned the Text property a value. The resulting rectangle is {empty}. Is there a way to obtain the pixel dimensions of a string without haven drawn or shown it. I certainly know that the result also depends on the text formating. Nevertheless, is there a way to obtain this information? thanks in advance Lars

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realJSOP

You need to get the current display context, and then call the Graphics.MeasureString() method.

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
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califax2k

thanks for your reply. I forgot to mention that I want to limit myself to the WPF API. Nevermind, your answer helped me figure out the WPF-way of doing it. I am using now an instance of FormattedText und ask its Width and Height properties. Interestingly there exists a method GetMaxLineWidths() in this class but it doesn't work as I expected. It always returns {null}. Regards, Lars

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