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typedef struct
{
    /**************************************************************************************************/
    unsigned int current_scr_x;     /* The currently used width. */
    unsigned int current_scr_y;     /* The currently used height. */
    unsigned int current_bpp;       /* The currently used bits per pixel */
    /**************************************************************************************************/
    // Function initialises the driver.
    void (*DP_InitialiseDriver);

    // I think the Names describe the pointer to the functions
    void (*DP_SetResolution)(int width_x, int width_y, int bpp);
    void (*DP_GetResolution);

    void (*DP_DrawPixel)(int x, int y);
    void (*DP_DrawLine)(int start_x, int start_y, int end_x, int end_y);
    void (*DP_DrawSquare)(int x1, int y1, int x2, int y2);
    void (*DP_DrawTriangle)(int x, int y, int z);
} DP_Interface;

/* A set of standard resolutions */
enum DP_Standard_Resolutions
{
    RES_300x200,
    RES_640x480,
    RES_800x600,
    RES_1024x768,
    RES_1280x1024
};

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/* The driver interface */
typedef struct
{
    /**************************************************************************************************/
    unsigned int current_scr_x;                 /* The currently used width. */
    unsigned int current_scr_y;                 /* The currently used height. */
    unsigned int current_bpp;                   /* The currently used bits per pixel */
    /**************************************************************************************************/
    /* The Video-RAM have to be mapped to the applications address space too. */
    unsigned short *graphics_memory_pointer;    /* Pointer to the start of the graphics address */
    unsigned short *graphics_offset_pointer;    /* Pointer Array to the offset(s) address(es) */
    /**************************************************************************************************/
    void (*DP_InitialiseDriver);

    void (*DP_SetResolution)(unsigned int width_x, unsigned int width_y, unsigned int bpp);
    void (*DP_GetResolution);

    /* Pointer to a Function that draws a single pixel */
    void (*DP_DrawPixel)(unsigned int x, unsigned int y);
    /* Pointer to a Function that draws a simple line */
    void (*DP_DrawLine)(unsigned int start_x, unsigned int start_y, unsigned int end_x, unsigned int end_y);
    /* Pointer to a Function that draws a square */
    void (*DP_DrawSquare)(unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2);
    /* Pointer to a Function that draws a Triangle */
    void (*DP_DrawTriangle)(unsigned int x, unsigned int y, unsigned int z);
    /* Pointer to a Function that draws a Circle */
    void (*DP_DrawCircle)(unsigned int start_x, unsigned int start_y, unsigned int end_x, unsigned int end_y);

    /* Pointer to a Function that flips the offset and the memory pointer */
    void (*DP_FlipToOffset);
    /* Pointer to a Function that refresh the screen */
    void (*DP_RefreshScreen);
    /* Pointer to a Function that adds n more Buffers to offset, so tripple Buffering could be used */
    void (*DP_ExpandBuffer)(unsigned int n);

    /* Pointer to a Function that changes the new font */
    void (*DP_SetFont)(unsigned int font);
    /* Pointer to a Function that returns the current font */
    unsigned int (*DP_GetCurrentFont);
    /* Pointer to a Function that writes some text at position xy */
    void (*DP_WriteText)(unsigned int x, unsigned int y, const char *txt);
} DP_Interface;

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void (*DP_BitBlit);
void (*DP_FloodFill)(unsigned int start,unsigned int search_color,unsigned int fill_color);