using structs

This is a discussion on using structs within the C++ Programming forums, part of the General Programming Boards category; I defined structs some structs and I get errors that on the left of '->' must be a class/struct/union. I ...

  1. #1
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    using structs

    I defined structs some structs and I get errors that on the left of '->' must be a class/struct/union. I don't know what is the problem because there is a struct on the left side of '->'. Here is my code.

    I get errors where I used the info variable.
    Code:
    struct POINTAPI{long X;	long Y;}
    struct TXTFONT{short Height; short IndentX; short IndentY; short Left; short Top; short Width;}
    struct HDCINFO{long HDC; long Height; long Width;}
    struct OUTINFO{TXTFONT Font;  HDCINFO HDC; POINTAPI Point; long StrLen;short ScrollX;}
    [DllImport("gdi32.dll", EntryPoint="TextOutA")]
    static extern int32 TextOut (long hdc, long x, long y, char * lpString, long nCount);
    
    void _stdcall PrintText(char *pText, OUTINFO *info);
    BOOL APIENTRY DllMain( HANDLE hModule, 
                           DWORD  ul_reason_for_call, 
                           LPVOID lpReserved
    					 )
    {
        return TRUE;
    }
    void _stdcall PrintText(char *pText, OUTINFO *info){
    	long NextStart, I;
    	bool MoveIt;
    	for(I=0;I<info->StrLen;I++)
    	{
    		if(*pText==(char)10 || *pText == (char)13){info->Point.Y = info->Point.Y + info->Font.Height;
    			info->Point.X = info->Font.IndentX - (info->ScrollX * info->Font.Width);
    			if(info->Point.Y > (info->HDC.HDC-1)){break;}
    		}
    		else
    		{
    			if(info->Point.X > info->Font.IndentX){
    				if(info->Point.X > (info->HDC.Width-1)){
    					for( ;I < info->StrLen;I++){ if(*pText == (char)10){break}pText=pText+1;}
    					TextOut(info->HDC.HDC,info->Point.X,info->Point.Y,pText,1);
    			}
    			info->Point.X = info->Point.X + info->Font.Width;
    			pText=pText +1;
    		}
    	}
    }
    Any one know what is wrong?

    Thanx in advance!

  2. #2
    and the hat of wrongness Salem's Avatar
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    Code:
    struct POINTAPI{long X;	long Y;}
    Don't you need a ; after the closing brace as well?
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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  3. #3
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    Thanx that worked.

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