KeyFromChar(char, fCtrl, fShift, fAlt)
Returns a key value, given a character and modifier key states. A key value is a numeric keyboard value that is returned by GetKey. You can use CharFromKey to convert a key value into a character.
Inputs:
char - the character part of the keystroke. It is not case sensitive.
fCtrl - non-zero if the CTRL key is included.
fShift - non-zero if the Shift key is included.
fAlt - non-zero if the ALT key is included.
The char parameter can have some special values:
|
Char Value |
Meaning |
|
a-z |
Simple alpha characters |
|
Fx |
Function Key number x; e.g. F10 |
|
Nx |
Numeric keypad character x; e.g. N+ for "+" key |
|
Up, Down, Left, Right |
Arrow keys |
|
Page Up, Page Down Insert, Delete Home, End, Tab, Enter |
Other special keys |
Examples of Key Assignments:
// assign Ctrl+C to Page Down command:
key = KeyFromChar("c", 1, 0, 0); // Ctrl+C
AssignKeyToCmd(key, "Page Down");
// assign F9 to Close Project command:
key = KeyFromChar("F9", 0, 0, 1); // Alt+F9
AssignKeyToCmd(key, "Close Project");
Examples of input functions:
// input a keypress and decode it
key = GetKey()
if (IsFuncKey(key))
Msg cat("Function key = ", FuncFromKey(key))
if (IsAltKeyDown(key))
Msg "Alt key down"
if (IsCtrlKeyDown(key))
Msg "Ctrl key down"
ch = CharFromKey(key)
if (Ascii(ch) == 13)
Msg "You pressed Enter!"
else if (toupper(ch) == 'S')
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