Utility macros and functions return contents of words and bytes, create unsigned long integers and structures, and perform specialized arithmetic. Following are the utility macros and functions:
| HIBYTE |
Returns the high-order byte of an integer. |
| HIWORD |
Returns the high-order word of a long integer. |
| LOBYTE |
Returns the low-order byte of an integer. |
| LOWORD |
Returns the low-order word of a long integer. |
| MAKEINTATOM |
Casts an integer for use as a function argument. |
| MAKEINTRESOURCE |
Converts an integer value into a long pointer to a string, with the high-order word of the long pointer set to zero. |
| MAKELONG |
Creates an unsigned long integer. |
| MAKEPOINT |
Converts a long value that contains the x- and y-coordinates of a point into a POINT structure. |
| MulDiv |
Multiplies two word-length values and then divides the result by a third word-length value, returning the result rounded to the nearest integer. |
| PALETTEINDEX |
Converts an integer into a palette-index COLORREF value. |
| PALETTERGB |
Converts values for red, green, and blue into a palette-relative RGB COLORREF value. |
| RGB |
Converts values for red, green, and blue into an explicit RGB COLORREF value. |