vtkStandardNewMacro给出错误C4430:缺少类型说明符 [英] vtkStandardNewMacro gives error C4430: missing type specifier

问题描述

我有以下代码:

#include <vtkInteractorStyleTrackballCamera.h>

class InteractorStyle : public vtkInteractorStyleTrackballCamera
{
    public:
        static InteractorStyle* New() {};
        vtkTypeMacro(InteractorStyle, vtkInteractorStyleTrackballCamera);
        InteractorStyle() {
            cout << "test";
        }
        virtual void OnLeftButtonDown();

        virtual void OnKeyPress();

    private:

};
vtkStandardNewMacro(InteractorStyle); //error here

void InteractorStyle::OnLeftButtonDown()
{
    std::cout << "test";
    // Forward events
    vtkInteractorStyleTrackballCamera::OnLeftButtonDown();
};
void InteractorStyle::OnKeyPress()
{
    // Get the keypress
    vtkRenderWindowInteractor *rwi = this->Interactor;
    std::string key = rwi->GetKeySym();

    // Output the key that was pressed
    std::cout << "Pressed " << key << std::endl;
    // Forward events
    vtkInteractorStyleTrackballCamera::OnKeyPress();
};

即使我遵循教程，它总是给我 vtkStandardNewMacro(InteractorStyle); 的错误:

Even though I follow the tutorial, it always gives me below error for vtkStandardNewMacro(InteractorStyle); :

错误C4430:缺少类型说明符-假定为int.注意:C ++不会支持default-int

error C4430: missing type specifier - int assumed. Note: C++ does not support default-int

该如何解决?

推荐答案

您需要添加的只是 #include< vtkObjectFactory.h> .该教程从未明确提及过这一点，太糟糕了.

All you need to add is #include <vtkObjectFactory.h>. The tutorial never explicitly mentioned this, too bad.

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