After calling System.Drawing.Icon.ToBitmap() to create an image, is it safe to dispose the original Icon?
After calling System.Drawing.Icon.ToBitmap() to create an image, is it safe to dispose the original
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
After calling System.Drawing.Icon.ToBitmap() to create an image, is it safe to dispose the original Icon?
Yes. Icon.ToBitmap draws the Icon to a new Bitmap object so it is safe to dispose it afterwards.
Edit:
Looking at the Icon.ToBitmap() method in Reflector was interesting. I expected it to be a simple Graphics.DrawImage or Graphics.DrawIcon call but it is more involved than that. As long as it is possible the function will do a memory copy of the icon image data instead, but it will revert to a Graphics.DrawImage or Graphics.DrawIcon call if it cannot perform the copy. The memory copy is much faster so that is obviously the reason, but this makes the code much harder to read.