About BITMAPFILEHEADER class

[H1manshu21]

About to discuss in future.

[Ank1taS]

The BITMAPFILEHEADER structure contains information about BMP file i.e the type, size, and layout of a file that includes a DIB. You can refer to the Microsoft documentation. and about file format

Syntax

struct tagBITMAPFILEHEADER {
  WORD  bfType;
  DWORD bfSize;
  WORD  bfReserved1;
  WORD  bfReserved2;
  DWORD bfOffBits;
} ;

BMP Header BITMAPFILEHEADER contains a total of 5 variables

Variable	Field Name	Size in bytes	Description	Reference
bfType	FileType	2 bytes	A 2 character string value in ASCII to specify a DIB file type. It must be 'BM' or '0x42 0x4D' in hexadecimal for modern compatibility reasons.	This for details
bfSize	FileSize	4 bytes	An integer (unsigned) representing entire file size in bytes. This value is basically the number of bytes in a BMP image file.
bfReserved1	Reserved	2 bytes	These 2 bytes are reserved to be utilized by an image processing application to add additional meaningful information. It should be initialized to a '0' integer (unsigned) value.	This for details
bfReserved2	Reserved	2 bytes	These 2 bytes are reserved to be utilized by an image processing application to add additional meaningful information. It should be initialized to a '0' integer (unsigned) value.	This for details.
bfOffBits	PixelDataOffset	4 bytes	An integer (unsigned) representing the offset of actual pixel data in bytes. i.e the number of bytes between the start of the file (0) and the first byte of the pixel data.

In this way size of BITMAPFILEHEADER is 14 bytes