ImageMagick and Qt Creator on Windows

[djogon]

Hello,

I have created an application that uses ImageMagick on OS X without much issues. I compiled and installed ImageMagick from sources and linked into my application without much trouble.

Now I am trying to do the same on Windows, but the MinGW compiler is always complaining when I try to link the libraries.

Could the issue be that the libraries are mostly compiled using Visual Studio? Do I have to recompile them with MinGW? How do I do that?

Does anyone have any suggestions or examples? My "pro" file has following entries for example

Code: Select all

macx {
INCLUDEPATH += /Developer/ImageMagick-6.5.4-2/Magick++/lib \
    /Developer/ImageMagick-6.5.4-2

LIBS += -lMagick++
}

win32 {
INCLUDEPATH += ./ImageMagick/lib \
    ./ImageMagick/include \
    ./ImageMagick

LIBS += ./ImageMagick/lib/CORE_RL_magick_.lib \
    ./ImageMagick/lib/CORE_RL_Magick++_.lib
}

On windows I placed the ImageMagick library under the main project folder and the paths are correct - linker finds the files, but cannot link.

I must be missing something simple - any help is appreciated.

Thanks.

[ritchy029]

Hi, I have a similar problem, with some differences .

The facts:
I compiled Magick++ with visual studio 2009 Express.
I have compiled QT with visual studio, and i am using the visual studio compiler from QtCreator to build my qt programs.

The good:
When i create a new project under visual studio using Magick++, no pro!
When i use QT creator with anything else (OpenCV, soundlibs, Ogre3D...) , no pro!

The bad:
When i try to build the same program as the one in visual (that worked in visual, see "The good"!), compilation is ok, but linker is crying:

Code: Select all

image_impl.obj:-1: error:  unresolved external symbol "__declspec(dllimport) public: __thiscall Magick::Image::Image(void)" (__imp_??0Image@Magick@@QAE@XZ) referenced in function "public: __thiscall CImage_Impl::CImage_Impl(void)" (??0CImage_Impl@@QAE@XZ)

image_impl.obj:-1: error:  unresolved external symbol "__declspec(dllimport) public: void __thiscall Magick::Image::read(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (__imp_?read@Image@Magick@@QAEXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) referenced in function "public: virtual int __thiscall CImage_Impl::load(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?load@CImage_Impl@@UAEHABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z)

image_impl.obj:-1: error:  unresolved external symbol "__declspec(dllimport) public: virtual __thiscall Magick::Image::~Image(void)" (__imp_??1Image@Magick@@UAE@XZ) referenced in function "public: virtual __thiscall CImage_Impl::~CImage_Impl(void)" (??1CImage_Impl@@UAE@XZ)

My guess is that QtCreator needs some core libs of windows, but why all my other programs are working then. Why, hoo why only with Magick ??

Any help would be great . Thanks.

[arsham]

Have you found a solution to this problem yet?