10 votes
Accepted

How does “RGBTRIPLE triple;” know whitch pixel to store?

You have mixed them a little in your head but we are here. :) Firstly, the line RGBTRIPLE triple; doesn't get a pixel, it just declares a variable, of type RGBTRIPLE with the name triple. It would ...
  • 7,356
5 votes

Why is RGBTRIPLE in our bitmap 3 bytes? Is that defined somewhere?

If you take a look in bmp.h, which is included as a header file to copy.c, you'll see a definition for structures named RGBTRIPLE: typedef struct { BYTE rgbtBlue; BYTE rgbtGreen; BYTE ...
  • 253
2 votes

Why is RGBTRIPLE in our bitmap 3 bytes? Is that defined somewhere?

The missing part of Dr.Queso's response is this. A pixel is made of 3 parts - one red, one green and one blue. Each of these is represented by a number that determines it's intensity. The range for ...
  • 64.7k
1 vote
Accepted

pset4 - (Filter Less ) - Doubts with malloc()

You seem to be confused about malloc(). malloc allocates memory from heap. You can store anything inside this allotted memory location. Specifically it expects the following input: number of bytes of ...
  • 307
1 vote
Accepted

How does RGBTRIPLE differentiate between the 3 bytes it reads from input file and assign them to rgbt blue, green and red?

When a struct is stored in memory, the data for each struct element is stored in sequence. That means that when a struct's data is read, the data is simply read into each element in the same order ...
  • 64.7k

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