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Draw Rectangle dotted line the selected Image area

 
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Sir,

I have an image in jsp. I am doing cropping function on images. When i select the images i want to show some dotted rectangle lines so that user will come to know image is selecting... How can i draw the line over the images.

-Regs,

Rodricks
 
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You might want to have a look at the Canvas API
https://coderanch.com/t/120603/HTML-JavaScript/Drawing-Real-time-charts
 
Rodricks george
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Thank you sir!

-Rodricks
 
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