QImage::bits() overloaded function

Hello!

In QImage class we have function bits() witch is overloaded:

Code:

---

uchar *	bits ()
const uchar *	bits () const

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My problem is that when I want to call uchar * bits () function, just like that:

Code:

---

uchar *bitsImage = image.bits();

---

I'm getting an error:
error: invalid conversion from 'const uchar*' to 'uchar*'

So I would like to ask how I can call the uchar * bits () function?

Best regards
s410i

Quote:

---

Originally Posted by s410i

Hello!

In QImage class we have function bits() witch is overloaded:

Code:

---

uchar *	bits ()
const uchar *	bits () const

---

My problem is that when I want to call uchar * bits () function, just like that:

Code:

---

uchar *bitsImage = image.bits();

---

I'm getting an error:
error: invalid conversion from 'const uchar*' to 'uchar*'

So I would like to ask how I can call the uchar * bits () function?

Best regards
s410i

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Although its strange.
Anyway you can use casting operators. e.g.

Code:

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uchar *bitsImage = const_cast <uchar*> image.bits();

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Quote:

---

Originally Posted by s410i

So I would like to ask how I can call the uchar * bits () function

---

This works fine for me:

Code:

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#include <QImage>
 
int main(){
  QImage img;
  uchar *bits = img.bits();
  return 0;
}

---

Your "image" variable is probably const. You can't call non-const methods on a const object.

Thank you very much :)

const QImage was the problem.

Best regards
s410i