Re: cannot convert 'SDL_DisplayMode' to 'SDL_DisplayMode*

int gobot( int * horizontal, int* vertical, &dm )

   {
      //SDL_GetDesktopDisplayMode(0, &dm);
       *horizontal = dm->w;
       *vertical = dm->h;
      return 0;
   }

Should be:

int gobot( int * horizontal, int* vertical, *SDL_DisplayMode* dm* )
  {
      //SDL_GetDesktopDisplayMode(0, &dm);
       *horizontal = dm->w;
       *vertical = dm->h;
      return 0;
   }

That third argument is incorrect on that first version. The definition
arguments need to match the declaration arguments. That third argument is a
pointer to a structure. The only time you pass &dm is when you actually
call the function. Not during declaration and definition.


On Feb 8, 2017 4:08 PM, "speartip" <[email protected]> wrote:

Deployed with changes; errors persistent:




Code:


 horizontal = 0; vertical = 0;

 SDL_DisplayMode dm;
 cout<<"Gobot call:";
 gobot(&horizontal,&vertical, &dm);







Code:


#include"SDL.h"

int SDL_GetDesktopDisplayMode(int displayIndex, SDL_DisplayMode * dm);
int gobot( int * horizontal, int * vertical, SDL_DisplayMode * dm);







Code:


#include "SDL.h"
#include "gobot.h"


int gobot( int * horizontal, int* vertical, &dm )

   {
      //SDL_GetDesktopDisplayMode(0, &dm);
       *horizontal = dm->w;
       *vertical = dm->h;
      return 0;
   }




error:



Code:


.\src\gobot.cpp:15:45: error: 'dm' has not been declared
 int gobot( int * horizontal, int* vertical, dm )
                                             ^
..\src\gobot.cpp: In function 'int gobot(int*, int*, int)':
..\src\gobot.cpp:18:18: error: 'dm' was not declared in this scope
   * horizontal = dm->w;




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