[gdal-dev] Using GDAL with opencv in C++ there is errors under windows

Raivo Rebane raivo at r-systems.ee
Tue Mar 7 00:32:18 PST 2023 

Hi again

I minimized the program :

#include <gdal.h>
#include <gdal_priv.h>
#include <iostream>
#include <conio.h>

int main()
{
     GDALAllRegister();
     GDALDataset* dataset = 
static_cast<GDALDataset*>(GDALOpen("634632_2012_tava.tiff", GA_ReadOnly));
     GDALClose(dataset);

     return 0;
}

but it gives the same errors ?

If I remove

#include <gdal_priv.h>
Warnings stop to come

Can anybody help me ?

Regards
Raivo


On 06.03.23 17:04, Raivo Rebane wrote:
> Hi
>
> I am big problem. My program gives errors:
>
> Severity    Code    Description    Project    File    Line Suppression 
> State
> Warning    C4251    'CPLJSONObject::m_osKey': class 
> 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' 
> needs to have dll-interface to be used by clients of class 
> 'CPLJSONObject'    project2    C:\Program 
> Files\PostgreSQL\15\include\cpl_json.h    153
> Warning    C4251    'OGRStyleTable::osLastRequestedStyleName': class 
> 'CPLString' needs to have dll-interface to be used by clients of class 
> 'OGRStyleTable'    project2    C:\Program 
> Files\PostgreSQL\15\include\ogr_featurestyle.h    89
> Warning    C4251    'OGR_SRSNode::m_listener': class 
> 'std::weak_ptr<OGR_SRSNode::Listener>' needs to have dll-interface to 
> be used by clients of class 'OGR_SRSNode' project2    C:\Program 
> Files\PostgreSQL\15\include\ogr_spatialref.h    129
> Warning    C4251    'OGRSpatialReference::d': class 
> 'std::unique_ptr<OGRSpatialReference::Private,std::default_delete<OGRSpatialReference::Private>>' 
> needs to have dll-interface to be used by clients of class 
> 'OGRSpatialReference'    project2    C:\Program 
> Files\PostgreSQL\15\include\ogr_spatialref.h    159
> Warning    C4251    'OGRCoordinateTransformationOptions::d': class 
> 'std::unique_ptr<OGRCoordinateTransformationOptions::Private,std::default_delete<OGRCoordinateTransformationOptions::Private>>' 
> needs to have dll-interface to be used by clients of struct 
> 'OGRCoordinateTransformationOptions'    project2    C:\Program 
> Files\PostgreSQL\15\include\ogr_spatialref.h    775
> Warning    C4251    'OGRCurve::ConstIterator::m_poPrivate': class 
> 'std::unique_ptr<OGRCurve::ConstIterator::Private,std::default_delete<OGRCurve::ConstIterator::Private>>' 
> needs to have dll-interface to be used by clients of class 
> 'OGRCurve::ConstIterator'    project2    C:\Program 
> Files\PostgreSQL\15\include\ogr_geometry.h    948
> Warning    C4251    'OGRSimpleCurve::Iterator::m_poPrivate': class 
> 'std::unique_ptr<OGRSimpleCurve::Iterator::Private,std::default_delete<OGRSimpleCurve::Iterator::Private>>' 
> needs to have dll-interface to be used by clients of class 
> 'OGRSimpleCurve::Iterator'    project2    C:\Program 
> Files\PostgreSQL\15\include\ogr_geometry.h    1067
> Warning    C4251    'OGRSimpleCurve::ConstIterator::m_poPrivate': 
> class 
> 'std::unique_ptr<OGRSimpleCurve::ConstIterator::Private,std::default_delete<OGRSimpleCurve::ConstIterator::Private>>' 
> needs to have dll-interface to be used by clients of class 
> 'OGRSimpleCurve::ConstIterator'    project2    C:\Program 
> Files\PostgreSQL\15\include\ogr_geometry.h    1084
> Warning    C4251 'OGRGeometryFactory::TransformWithOptionsCache::d': 
> class 
> 'std::unique_ptr<OGRGeometryFactory::TransformWithOptionsCache::Private,std::default_delete<OGRGeometryFactory::TransformWithOptionsCache::Private>>' 
> needs to have dll-interface to be used by clients of class 
> 'OGRGeometryFactory::TransformWithOptionsCache'    project2 C:\Program 
> Files\PostgreSQL\15\include\ogr_geometry.h    2883
> Warning    C4251    'OGRFeature::FieldValue::m_poPrivate': class 
> 'std::unique_ptr<OGRFeature::FieldValue::Private,std::default_delete<OGRFeature::FieldValue::Private>>' 
> needs to have dll-interface to be used by clients of class 
> 'OGRFeature::FieldValue'    project2    C:\Program 
> Files\PostgreSQL\15\include\ogr_feature.h    385
> Warning    C4251    'OGRFeature::ConstFieldIterator::m_poPrivate': 
> class 
> 'std::unique_ptr<OGRFeature::ConstFieldIterator::Private,std::default_delete<OGRFeature::ConstFieldIterator::Private>>' 
> needs to have dll-interface to be used by clients of class 
> 'OGRFeature::ConstFieldIterator'    project2    C:\Program 
> Files\PostgreSQL\15\include\ogr_feature.h    528
> Warning    C4251    'GDALMajorObject::sDescription': class 'CPLString' 
> needs to have dll-interface to be used by clients of class 
> 'GDALMajorObject'    project2    C:\Program 
> Files\PostgreSQL\15\include\gdal_priv.h    137
> Warning    C4251    'GDALDefaultOverviews::osOvrFilename': class 
> 'CPLString' needs to have dll-interface to be used by clients of class 
> 'GDALDefaultOverviews'    project2    C:\Program 
> Files\PostgreSQL\15\include\gdal_priv.h    190
> Warning    C4251    'GDALDataset::Bands::Iterator::m_poPrivate': class 
> 'std::unique_ptr<GDALDataset::Bands::Iterator::Private,std::default_delete<GDALDataset::Bands::Iterator::Private>>' 
> needs to have dll-interface to be used by clients of class 
> 'GDALDataset::Bands::Iterator'    project2    C:\Program 
> Files\PostgreSQL\15\include\gdal_priv.h    473
> Warning    C4251    'GDALDataset::Layers::Iterator::m_poPrivate': 
> class 
> 'std::unique_ptr<GDALDataset::Layers::Iterator::Private,std::default_delete<GDALDataset::Layers::Iterator::Private>>' 
> needs to have dll-interface to be used by clients of class 
> 'GDALDataset::Layers::Iterator'    project2    C:\Program 
> Files\PostgreSQL\15\include\gdal_priv.h    669
> Warning    C4251 'GDALDataset::Features::Iterator::m_poPrivate': class 
> 'std::unique_ptr<GDALDataset::Features::Iterator::Private,std::default_delete<GDALDataset::Features::Iterator::Private>>' 
> needs to have dll-interface to be used by clients of class 
> 'GDALDataset::Features::Iterator'    project2    C:\Program 
> Files\PostgreSQL\15\include\gdal_priv.h    727
> Warning    C4251    'GDALColorTable::aoEntries': class 
> 'std::vector<GDALColorEntry,std::allocator<GDALColorEntry>>' needs to 
> have dll-interface to be used by clients of class 'GDALColorTable'    
> project2    C:\Program Files\PostgreSQL\15\include\gdal_priv.h    968
> Warning    C4251    'GDALDriverManager::oMapNameToDrivers': class 
> 'std::map<CPLString,GDALDriver 
> *,std::less<CPLString>,std::allocator<std::pair<const 
> CPLString,GDALDriver *>>>' needs to have dll-interface to be used by 
> clients of class 'GDALDriverManager'    project2 C:\Program 
> Files\PostgreSQL\15\include\gdal_priv.h    1556
> Error    LNK2001    unresolved external symbol "public: virtual class 
> OGRGeometry * __cdecl OGRGeometry::MakeValid(void)const " 
> (?MakeValid at OGRGeometry@@UEBAPEAV1 at XZ)    project2 
> C:\Users\Raivo\source\Repos\cv46srcDD\project2\Source.obj    1
> Error    LNK2019    unresolved external symbol "public: void __cdecl 
> OGRFeature::SetField(int,union OGRField *)" 
> (?SetField at OGRFeature@@QEAAXHPEATOGRField@@@Z) referenced in function 
> "public: void __cdecl OGRFeature::SetField(char const *,union OGRField 
> *)" (?SetField at OGRFeature@@QEAAXPEBDPEATOGRField@@@Z)    project2 
> C:\Users\Raivo\source\Repos\cv46srcDD\project2\Source.obj    1
>
> I trying with examples.
>
> Headers are :
>
> #include <gdal.h>
> #include <cpl_json.h>
> #include <gdal_priv.h>
> #include "opencv2/imgcodecs.hpp"
> #include "opencv2/highgui.hpp"
> #include <iostream>
> #include <conio.h>
>
> What I mus do ?
>
> Regards
>
> Raivo
>
> _______________________________________________
> gdal-dev mailing list
> gdal-dev at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/gdal-dev

More information about the gdal-dev mailing list