unsigned int const does not match const unsigned int

[Timo Freiberger]

Hi everybody,

when I try to compile a program that uses image Magick++ lib, I get the following error:

error: argument of type `unsigned int (Magick::Image:()
const' does not match `const unsigned int'


here is the code:

// new Image
Image glyph(bitmap.width,bitmap.rows, "K", CharPixel, bitmap.buffer);
// this leads to the error:
unsigned int const c = buchstabe.columns;

My first attempt was to use:

PixelPacket *pixel_cache = glyph.getPixels(0,0,glyph.columns,glyph.rows);

but then I get the error:

error: no matching function for call to `Magick::Image::
getPixels(int, int, <unknown type>, <unknown type>)'
/usr/include/Magick++/Image.h:1134: error: candidates are:
MagickLib:ixelPacket* Magick::Image::getPixels(int, int, unsigned int,
unsigned int)


Any help is very apreciated, because i'm stuck on this.

Greetz
Timo

 

[Andrew Koenig]

// new Image
Image glyph(bitmap.width,bitmap.rows, "K", CharPixel, bitmap.buffer);
// this leads to the error:
unsigned int const c = buchstabe.columns;

It's hard to know without seeing your header files, but could you be
neglecting to call a function?

That is, could it be that you need to write something like this?

unsigned int const c = buchstabe.columns();

where the parentheses say to call the function?

 

[JKop]

Andrew Koenig posted:

It's hard to know without seeing your header files, but could you be
neglecting to call a function?

That is, could it be that you need to write something like this?

unsigned int const c = buchstabe.columns();

where the parentheses say to call the function?

This seems the likely cuplrit.

The other (but unlikely) possiblity is that "columns" is a member
variable which is a function pointer.


-JKop

 

[Bob Hairgrove]

Hi everybody,

when I try to compile a program that uses image Magick++ lib, I get the following error:

error: argument of type `unsigned int (Magick::Image:()
const' does not match `const unsigned int'


here is the code:

// new Image
Image glyph(bitmap.width,bitmap.rows, "K", CharPixel, bitmap.buffer);
// this leads to the error:
unsigned int const c = buchstabe.columns;

My first attempt was to use:

PixelPacket *pixel_cache = glyph.getPixels(0,0,glyph.columns,glyph.rows);

but then I get the error:

error: no matching function for call to `Magick::Image::
getPixels(int, int, <unknown type>, <unknown type>)'

^^^^ ^^^^
Just a guess ... try this:

PixelPacket *pixel_cache =
glyph.getPixels(0,0,glyph.columns(),glyph.rows());