Function GetPixelInBitmap

* \fn static inline gal_pixel GUIAPI GetPixelInBitmap (const BITMAP* bmp, int x, int y) * \brief Returns the pixel value in a BITMAP object. * * This function returns the pixel value at the position \a (x,y) in * the BITMAP object \a bmp. * * \param bmp The BITMAP object. * \param x x,y: The position of the pixel in the bitmap relative to * the upper-left corner of the bitmap. * \p