Win32-like data types and macros
[Macros and data types commonly used]

Data Structures

• struct _RECT
• struct _POINT
• struct _SIZE
• struct _RGB

Defines

• #define LOBYTE(w)   ((BYTE)(w))

  Returns the low byte of the word w.
  

• #define HIBYTE(w)   ((BYTE)(((WORD)(w) >> 8) & 0xFF))

  Returns the high byte of the word w.
  

• #define MAKEWORD(low, high)   ((WORD)(((BYTE)(low)) | (((WORD)((BYTE)(high))) << 8)))

  Makes a word from low byte and high byte.
  

• #define LOWORD(l)   ((WORD)(DWORD)(l))

  Returns the low word of the double word l.
  

• #define HIWORD(l)   ((WORD)((((DWORD)(l)) >> 16) & 0xFFFF))

  Returns the high word of the double word l.
  

• #define LOSWORD(l)   ((SWORD)(DWORD)(l))

  Returns the low signed word of the double word l.
  

• #define HISWORD(l)   ((SWORD)((((DWORD)(l)) >> 16) & 0xFFFF))

  Returns the high signed word of the double word l.
  

• #define MAKELONG(low, high)   ((DWORD)(((WORD)(low)) | (((DWORD)((WORD)(high))) << 16)))

  Makes a double word from low word and high word.
  

• #define GetRValue(rgba)   ((BYTE)(rgba))

  Gets the red component from a RGBA triple value rgba.
  

• #define GetGValue(rgba)   ((BYTE)(((DWORD)(rgba)) >> 8))

  Gets the green component from a RGBA triple value rgba.
  

• #define GetBValue(rgba)   ((BYTE)((DWORD)(rgba) >> 16))

  Gets the blue component from a RGBA triple value rgba.
  

• #define GetAValue(rgba)   ((BYTE)((DWORD)(rgba) >> 24))

  Gets the alpha component from a RGBA triple value rgba.
  

• #define MakeRGBA(r, g, b, a)

  Makes a RGBA triple value from red r, green g, blue b and alpha components.
  

• #define MakeRGB(r, g, b)

  Makes a RGB triple value from red r, green g, and blue b components.
  

Typedefs

• typedef unsigned char BYTE

  A type definition for unsigned character (byte).
  

• typedef signed char SBYTE

  A type definition for signed character.
  

• typedef unsigned short WORD

  A type definition for unsigned short integer (word).
  

• typedef signed short SWORD

  A type definition for signed short integer.
  

• typedef unsigned long DWORD

  A type definition for unsigned long integer (double word).
  

• typedef signed long SDWORD

  A type definition for signed long integer.
  

• typedef unsigned int UINT

  A type definition for unsigned integer.
  

• typedef long LONG

  A type definition for long integer.
  

• typedef unsigned int WPARAM

  A type definition for the first message paramter.
  

• typedef unsigned long LPARAM

  A type definition for the second message paramter.
  

• typedef DWORD RGBCOLOR

  A type definition for a RGB color.
  

• typedef struct _RECT RECT
• typedef RECT * PRECT

  Data type of the pointer to a RECT.
  

• typedef struct _POINT POINT
• typedef POINT * PPOINT

  Data type of the pointer to a POINT.
  

• typedef struct _SIZE SIZE
• typedef SIZE * PSIZE

  Data type of the pointer to a SIZE.
  

• typedef struct _RGB RGB
• typedef RGB * PRGB

  Data type of the pointer to a RGB.
  

---

Define Documentation

#define GetAValue

(

rgba

)

((BYTE)((DWORD)(rgba) >> 24))

Gets the alpha component from a RGBA triple value rgba.

You can make a RGBA triple by using MakeRGBA.

See also:

MakeRGBA, MakeRGB

Definition at line 530 of file common.h.

Referenced by DWORD2PIXEL().

#define GetBValue

(

rgba

)

((BYTE)((DWORD)(rgba) >> 16))

Gets the blue component from a RGBA triple value rgba.

You can make a RGBA triple by using MakeRGBA.

See also:

MakeRGBA, MakeRGB

Definition at line 521 of file common.h.

Referenced by DWORD2PIXEL().

#define GetGValue

(

rgba

)

((BYTE)(((DWORD)(rgba)) >> 8))

Gets the green component from a RGBA triple value rgba.

You can make a RGBA triple by using MakeRGBA.

See also:

MakeRGBA, MakeRGB

Definition at line 512 of file common.h.

Referenced by DWORD2PIXEL().

#define GetRValue

(

rgba

)

((BYTE)(rgba))

Gets the red component from a RGBA triple value rgba.

You can make a RGBA triple by using MakeRGBA.

See also:

MakeRGBA, MakeRGB

Definition at line 503 of file common.h.

Referenced by DWORD2PIXEL().

#define HIBYTE

(

w

)

((BYTE)(((WORD)(w) >> 8) & 0xFF))

Returns the high byte of the word w.

See also:

MAKEWORD

Definition at line 451 of file common.h.

#define HISWORD

(

l

)

((SWORD)((((DWORD)(l)) >> 16) & 0xFFFF))

Returns the high signed word of the double word l.

See also:

MAKELONG

Definition at line 487 of file common.h.

#define HIWORD

(

l

)

((WORD)((((DWORD)(l)) >> 16) & 0xFFFF))

Returns the high word of the double word l.

See also:

MAKELONG

Definition at line 472 of file common.h.

#define LOBYTE

(

w

)

((BYTE)(w))

Returns the low byte of the word w.

See also:

MAKEWORD

Definition at line 444 of file common.h.

#define LOSWORD

(

l

)

((SWORD)(DWORD)(l))

Returns the low signed word of the double word l.

See also:

MAKELONG

Definition at line 480 of file common.h.

#define LOWORD

(

l

)

((WORD)(DWORD)(l))

Returns the low word of the double word l.

See also:

MAKELONG

Definition at line 465 of file common.h.

#define MAKELONG	(	low,
		high		)	((DWORD)(((WORD)(low)) | (((DWORD)((WORD)(high))) << 16)))

Makes a double word from low word and high word.

Definition at line 493 of file common.h.

#define MakeRGB	(	r,
		g,
		b		)

Value:

(((DWORD)((BYTE)(r))) | ((DWORD)((BYTE)(g)) << 8) \
                | ((DWORD)((BYTE)(b)) << 16))

Makes a RGB triple value from red r, green g, and blue b components.

Note:

The red, green, and blue components are all ranged from 0 to 255, and the returned value will be a double word.

See also:

GetRValue, GetGValue, GetBValue

Definition at line 554 of file common.h.

#define MakeRGBA	(	r,
		g,
		b,
		a		)

Value:

(((DWORD)((BYTE)(r))) | ((DWORD)((BYTE)(g)) << 8) \
                | ((DWORD)((BYTE)(b)) << 16) | ((DWORD)((BYTE)(a)) << 24))

Makes a RGBA triple value from red r, green g, blue b and alpha components.

Note:

The red, green, blue and alpha components are all ranged from 0 to 255, and the returned value will be a double word.

See also:

GetRValue, GetGValue, GetBValue, GetAValue

Definition at line 542 of file common.h.

Referenced by Pixel2DWORD().

#define MAKEWORD	(	low,
		high		)	((WORD)(((BYTE)(low)) | (((WORD)((BYTE)(high))) << 8)))

Makes a word from low byte and high byte.

Definition at line 457 of file common.h.

---

Typedef Documentation

typedef unsigned char BYTE

A type definition for unsigned character (byte).

Definition at line 374 of file common.h.

typedef unsigned long DWORD

A type definition for unsigned long integer (double word).

Definition at line 401 of file common.h.

typedef long LONG

A type definition for long integer.

Definition at line 423 of file common.h.

typedef unsigned long LPARAM

A type definition for the second message paramter.

Definition at line 436 of file common.h.

typedef struct _POINT POINT

Point structure.

See also:

PPOINT

typedef POINT * PPOINT

Data type of the pointer to a POINT.

See also:

POINT

Definition at line 620 of file common.h.

typedef RECT * PRECT

Data type of the pointer to a RECT.

See also:

RECT

Definition at line 597 of file common.h.

typedef RGB * PRGB

Data type of the pointer to a RGB.

See also:

RGB

Definition at line 675 of file common.h.

typedef SIZE * PSIZE

Data type of the pointer to a SIZE.

See also:

SIZE

Definition at line 643 of file common.h.

typedef struct _RECT RECT

A rectangle defined by coordinates of corners.

Note:

The lower-right corner does not belong to the rectangle, i.e. the bottom horizontal line and the right vertical line are excluded from the retangle.

See also:

PRECT, GAL_Rect

typedef struct _RGB RGB

RGB triple structure.

See also:

PRGB, GAL_Color

typedef DWORD RGBCOLOR

A type definition for a RGB color.

Definition at line 561 of file common.h.

typedef signed char SBYTE

A type definition for signed character.

Definition at line 380 of file common.h.

typedef signed long SDWORD

A type definition for signed long integer.

Definition at line 408 of file common.h.

typedef struct _SIZE SIZE

Size structure of a 2-dimension object.

See also:

PSIZE

typedef signed short SWORD

A type definition for signed short integer.

Definition at line 394 of file common.h.

typedef unsigned int UINT

A type definition for unsigned integer.

Definition at line 415 of file common.h.

typedef unsigned short WORD

A type definition for unsigned short integer (word).

Definition at line 387 of file common.h.

typedef unsigned int WPARAM

A type definition for the first message paramter.

Definition at line 430 of file common.h.