pack problem again

struct TGA_HEADER
{
    unsigned char   cbIDField;
    unsigned char   iColorMapType;
    unsigned char   iImageType;
    //--1 byte padding

    short           ofsColorMap;
    short           cColorMap;
    unsigned char   cColorMapBits;
    //--1 byte padding

    short           dX;
    short           dY;
    short           dWidth;
    short           dHeight;
    unsigned char   dColorDepth;
    unsigned char   descImage;
};

I have tried to make tga file yesterday and kept fail. When the image being dragged into directx texture tool, it alwayse told me something wrong in that file. But the header should be 18 bytes and the sum of all fields in the struct is 18 bytes, too. Finally, I started to check the pack issue as before. Then the problem emerged ! You can find a comment to mark the 1 byte padding in the code. To fix this only need 2 extra lines :

#include 
struct TGA_HEADER
{....}; 
#include