Key event messages
[Messages]

Defines

#define MSG_KEYDOWN 0x0010
User presses a key down.
#define MSG_CHAR 0x0011
A character translated from MSG_KEYDOWN message.
#define MSG_KEYUP 0x0012
User releases up a key.
#define MSG_SYSKEYDOWN 0x0013
User presses down a key when <Alt> key is down.
#define MSG_SYSCHAR 0x0014
A system character translated from MSG_SYSKEYDOWN message.
#define MSG_SYSKEYUP 0x0015
User releases up a key when <Alt> key is down.
#define MSG_KEYSYM 0x0016
A key symbol translated from MSG_KEYDOWN messages.
#define MSG_KEYLONGPRESS 0x0017
A key is long pressed.
#define MSG_KEYALWAYSPRESS 0x0018
A key is always pressed.
#define DEF_LPRESS_TIME 500
Default long pressed time of a key.
#define DEF_APRESS_TIME 1000
Default always pressed time of a key.
#define DEF_INTERVAL_TIME 200
Default send MSG_KEYLONGPRESS in interval value.
#define SetKeyLongPressTime(time)
User set default long pressed time of a key.
#define SetKeyAlwaysPressTime(time)
User set default always pressed time of a key.
#define SetIntervalTime(time)
User set default interval time that MSG_KEYLONGPRESS is sent.

Define Documentation

#define DEF_APRESS_TIME 1000

Default always pressed time of a key.

See also:: MSG_KEYALWAYSPRESS

Definition at line 555 of file window.h.

#define DEF_INTERVAL_TIME 200

Default send MSG_KEYLONGPRESS in interval value.

Definition at line 561 of file window.h.

#define DEF_LPRESS_TIME 500

Default long pressed time of a key.

See also:: MSG_KEYLONGPRESS

Definition at line 547 of file window.h.

#define MSG_CHAR 0x0011

A character translated from MSG_KEYDOWN message.

This message is translated from a MSG_KEYDOWN message by TranslateMessage and sent to the current active window.

 MSG_CHAR
 int ch = (int)wParam;
 DWORD key_flags = (DWORD)lParam;

Parameters:

	ch	The ASCII code of the pressed key.
	key_flags	The shift key status when this message occurred.

See also:: MSG_SYSCHAR, TranslateMessage, Macros for key codes and shift status

Definition at line 412 of file window.h.

#define MSG_KEYALWAYSPRESS 0x0018

A key is always pressed.

This message is sent when a key is pressed to exceed user-defined always time value.

Definition at line 539 of file window.h.

#define MSG_KEYDOWN 0x0010

User presses a key down.

This message is posted to the current active window when the user presses a key down.

 MSG_KEYDOWN
 int scancode = (int)wParam;
 DWORD key_flags = (DWORD)lParam;

Parameters:

	scancode	The scan code of the pressed key.
	key_flags	The shift key status when this message occurred.

See also:: MSG_KEYUP, Macros for key codes and shift status

Example:

/*
 * This example trys to handle the event when the user
 * presses <C> key as the <Ctrl> key is down.
 */
int MyWinProc (HWND hWnd, int message, WPARAM wParam, LPARAM lParam)
{
    switch (message) {
        case MSG_KEYDOWN:
            if (wParam ==SCANCODE_C && lParam & KS_CTRL) {
                // User pressed Ctrl+C.
                break;
            }
            break;
        ...
    }

    return DefaultMainWinProc (hWnd, message, wParam, lParam);
}

Definition at line 392 of file window.h.

#define MSG_KEYLONGPRESS 0x0017

A key is long pressed.

This message is sent when a key is pressed exceed user-defined long time value.

Definition at line 530 of file window.h.

#define MSG_KEYSYM 0x0016

A key symbol translated from MSG_KEYDOWN messages.

This message is translated from a MSG_KEYDOWN message by TranslateMessage and sent to the current active window.

Note that one translation may generate a key symbol made by more than one character, e.g., when using default keymap, DEL key will generate the key symbol "^[[3~".

 MSG_KEYSYM
 int index = HIBYTE (wParam);
 int keysym = LOBYTE (wParam);
 DWORD key_flags = (DWORD)lParam;

Parameters:

	index	The index of the key symbol in one translation, zero for a new translation, and the keysym is the first symbol.
	keysym	The code of the key symbol.
	key_flags	The shift key status when this message occurred.

See also:: MSG_SYSCHAR, TranslateMessage, Macros for key codes and shift status

Definition at line 519 of file window.h.

#define MSG_KEYUP 0x0012

User releases up a key.

This message is posted to the current active window when the user releases up a key.

 MSG_KEYUP
 int scancode = (int)wParam;
 DWORD key_flags = (DWORD)lParam;

Parameters:

	scancode	The scan code of the released key.
	key_flags	The shift key status when this message occurred.

See also:: MSG_KEYDOWN, Macros for key codes and shift status

Definition at line 432 of file window.h.

#define MSG_SYSCHAR 0x0014

A system character translated from MSG_SYSKEYDOWN message.

This message is translated from a MSG_SYSKEYDOWN message by TranslateMessage and sent to the current active window.

 MSG_SYSCHAR
 int ch = (int)wParam;
 DWORD key_flags = (DWORD)lParam;

Parameters:

	ch	The ASCII code of the pressed key.
	key_flags	The shift key status when this message occurred.

See also:: MSG_CHAR, TranslateMessage, Macros for key codes and shift status

Definition at line 472 of file window.h.

#define MSG_SYSKEYDOWN 0x0013

User presses down a key when <Alt> key is down.

This message is posted to the current active window when the user presses down a key as <Alt> key is down.

 MSG_SYSKEYDOWN
 int scancode = (int)wParam;
 DWORD key_flags = (DWORD)lParam;

Parameters:

	scancode	The scan code of the pressed key.
	key_flags	The shift key status when this message occurred.

See also:: MSG_SYSKEYUP, MSG_SYSCHAR, Macros for key codes and shift status

Definition at line 452 of file window.h.

#define MSG_SYSKEYUP 0x0015

User releases up a key when <Alt> key is down.

This message is posted to the current active window when the user releases up a key as <Alt> key is down.

 MSG_SYSKEYUP
 int scancode = (int)wParam;
 DWORD key_flags = (DWORD)lParam;

Parameters:

	scancode	The scan code of the released key.
	key_flags	The shift key status when this message occurred.

See also:: MSG_SYSKEYDOWN, Macros for key codes and shift status

Definition at line 492 of file window.h.

#define SetIntervalTime ( time )

Value:

do {                                \
        __mg_interval_time = time;      \
    } while (0)

User set default interval time that MSG_KEYLONGPRESS is sent.

Definition at line 589 of file window.h.

#define SetKeyAlwaysPressTime ( time )

Value:

do {                                \
        __mg_key_alwayspress_time = time; \
    } while (0)

User set default always pressed time of a key.

Definition at line 580 of file window.h.

#define SetKeyLongPressTime ( time )

Value:

do {                                \
        __mg_key_longpress_time = time; \
    } while (0)

User set default long pressed time of a key.

Definition at line 571 of file window.h.

Key event messages [Messages]

Defines

Define Documentation

Key event messages
[Messages]