error C2664: 'Gdiplus::Bitmap::LockBits' : cannot convert parameter 1 from 'Gdiplus::Rect' to 'const Gdiplus::Rect *'

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Hi everybody,

I am some what weak in pointer concept so can any body tell me why is below error is come into picture.

error C2664: 'Gdiplus::Bitmap::LockBits' : cannot convert parameter 1 from 'Gdiplus::Rect' to 'const Gdiplus::Rect *'

I am doing as below

C++

    BitmapData bmData;
Rect rect(0, 0, width, height);

b->LockBits(rect,
    ImageLockModeRead,
    PixelFormat32bppARGB,
    &bmData);

and b is the object of type bitmap

C++

Bitmap *b

Please tell me how to resolve this

Thanks

Posted 7-Jul-13 22:45pm

Vaibhav_J_Jaiswal

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nv3 8-Jul-13 4:55am

b->LockBits(&rect,

Vaibhav_J_Jaiswal 8-Jul-13 5:28am

Thanks it resolved

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«_Superman_» · Answer 1 · 2013-07-07T23:47:00

Reading the error message properly will tell you how to correct it most of the time.

From the error message you can see that it is trying to convert the Rect to a Rect pointer.
Now from the documentation you can see that the expected first parameter is a pointer to a Rect.
So you simple return the address of the Rect.