BITMAPFILEHEADER: Difference between revisions

Latest revision as of 12:43, 2 April 2025

Bitmap file header strcuture.

typedef struct _BITMAPFILEHEADER {
  USHORT               usType;    /* Type of resource the file contains. */
  ULONG                cbSize;    /* Size of the BITMAPFILEHEADER structure in bytes. */
  SHORT                xHotspot;  /* Width of hotspot for icons and pointers. */
  SHORT                yHotspot;  /* Height of hotspot for icons and pointers. */
  USHORT               offBits;   /* Offset in bytes. */
  BITMAPINFOHEADER     bmp;       /* Bitmap information header structure. */
} BITMAPFILEHEADER;

typedef   BITMAPFILEHEADER   * PBITMAPFILEHEADER ;

Fields

usType (USHORT)

Type of resource the file contains.

Possible values are shown in the following list:

BFT_BMAP (0x4D42 - 'BM' for bitmaps)

BFT_ICON (0x4349 - 'IC' for icons)

BFT_POINTER (0x4540 - 'PT' for pointers)

BFT_COLORICON (0x4943 - 'CI' for color icons)

BFT_COLORPOINTER (0x5043 - 'CP' for color pointers)

cbSize (ULONG): Size of the BITMAPFILEHEADER structure in bytes.
xHotspot (SHORT): Width of hotspot for icons and pointers.; This field is ignored for bit maps.
yHotspot (SHORT): Height of hotspot for icons and pointers.; This field is ignored for bit maps.
offBits (USHORT): Offset in bytes.; Offset in bytes to beginning of bitmap pel data in the file, from the start of the definition.
bmp (BITMAPINFOHEADER): Bitmap information header structure.

@@ Line 2: / Line 2: @@
 <PRE>
 typedef struct _BITMAPFILEHEADER {
-   USHORT               usType;    /*  Type of resource the file contains. */
+   USHORT               usType;    /* Type of resource the file contains. */
-   ULONG                cbSize;    /*  Size of the BITMAPFILEHEADER structure in bytes. */
+   ULONG                cbSize;    /* Size of the BITMAPFILEHEADER structure in bytes. */
-   SHORT                xHotspot;  /*  Width of hotspot for icons and pointers. */
+   SHORT                xHotspot;  /* Width of hotspot for icons and pointers. */
-   SHORT                yHotspot;  /*  Height of hotspot for icons and pointers. */
+   SHORT                yHotspot;  /* Height of hotspot for icons and pointers. */
-   USHORT               offBits;   /*  Offset in bytes. */
+   USHORT               offBits;   /* Offset in bytes. */
-   BITMAPINFOHEADER     bmp;       /*  Bitmap information header structure. */
+   BITMAPINFOHEADER     bmp;       /* Bitmap information header structure. */
 } BITMAPFILEHEADER;
 typedef   BITMAPFILEHEADER   * PBITMAPFILEHEADER ;
+</PRE>
-</PRE>
+==Fields==
+;usType (USHORT):Type of resource the file contains.
+:Possible values are shown in the following list:
+::BFT_BMAP (0x4D42 - 'BM' for bitmaps)
+::BFT_ICON (0x4349 - 'IC' for icons)
+::BFT_POINTER (0x4540 - 'PT' for pointers)
+::BFT_COLORICON (0x4943 - 'CI' for color icons)
+::BFT_COLORPOINTER (0x5043 - 'CP' for color pointers)
+;cbSize (ULONG):Size of the BITMAPFILEHEADER structure in bytes.
+;xHotspot (SHORT):Width of hotspot for icons and pointers.
+:This field is ignored for bit maps.
+;yHotspot (SHORT):Height of hotspot for icons and pointers.
+:This field is ignored for bit maps.
+;offBits (USHORT):Offset in bytes.
+:Offset in bytes to beginning of bitmap pel data in the file, from the start of the definition.
+;bmp (BITMAPINFOHEADER):Bitmap information header structure.
-[[Category: Data type]]
+[[Category:PM Data type]]