Using GraphicsPath::AddString() complains with "class 'GraphicsPath' has no member 'AddString'"

Question

I am trying to use the GraphicsPath::AddString() method of GDI+ in my libcinder project.

The idea is to create a path of a letter/glyph via the mentioned method and later pass that to gl::draw() and box2d's b2FixtureDef. The goal is create falling letters that show an exact collision behaviour.

However the following example taken from learn.microsoft.com throws several errors at me.

#include "cinder/app/App.h"
#include "cinder/app/RendererGl.h"
#include "cinder/gl/gl.h"
#include "cinder/Rand.h"
#include <Box2D/Box2D.h>

#include <gdiplus.h>
#pragma comment (lib, "gdiplus.lib")

using namespace Gdiplus;
using namespace ci;
using namespace ci::app;
using namespace std;

// ... 

void MyApp::draw()
{
  FontFamily fontFamily(L"Times New Roman");
    GraphicsPath path;

    // const WCHAR
    // Status AddString(
    //    IN const WCHAR         *string,
    //    IN INT                  length,
    //    IN const FontFamily    *family,
    //    IN INT                  style,
    //    IN REAL                 emSize,  // World units
    //    IN const PointF        &origin,
    //    IN const StringFormat  *format
    //)

  path.AddString(
    L"Hello World",
    -1,                 // NULL-terminated string
    &FontFamily("Arial"),
    FontStyleRegular,
    48,
    PointF(50.0f, 50.0f),
    NULL);
}

There are several issues with my code that just cant get fixed... My project's target platform version is 8.1 and the platform toolset is Visual Studio 2015 (v140). The headers are there and can be browsed to when hitting F12.

1. FontFamily fontFamily(L"Times New Roman");

"Cannot initialize local variable 'fontFamily' of type 'FontFamily' with lvalue of type 'wchar_t const[16]'

2. GraphicsPath path;

"No default constructor exists for class "GraphicsPath""

3. path.AddString(...)

"class 'GraphicsPath' has no member 'AddString'"

Any help is very appreciated. I have spent hours with this issues with zero progress.

Answer 1

After searching high and low I figured it out. I was missing a couple of includes. But to be honest, I still don't really understand, why the compiler complained with that specific message...

The following does compile for me and produces the path coordinates for the letter "A".

// other includes
#include <windows.h>
#include <ObjIdl.h>
#include <minmax.h>
#include <gdiplus.h>

using namespace Gdiplus;
using namespace ci;
using namespace ci::app;

#pragma comment (lib, "Gdiplus.lib")

// ...

void MyApp::setup()
{
  // ...

  GraphicsPath p(FillModeAlternate);
  FontFamily fontFamily(L"Arial");

  if (p.AddString(L"A", -1, &fontFamily, FontStyleRegular, 48, PointF(0.0f, 0.0f), NULL) != Status::Ok)
  {
    std::cout << "Error while adding points" << std::endl;
  }

  PointF points[64];

  if (p.GetPathPoints(points, sizeof(points)) != Status::Ok)
  {
    std::cout << "Error while getting points" << std::endl;
  }
}