Miscellaneous functions
[Global/general functions, MiniGUI-Processes specific functions]

Defines

• #define NotifyParent(hwnd, id, code)   NotifyParentEx(hwnd, id, code, 0)

  Sends a notification message to the parent, but without additional data.
  

• #define Beep   Ping

  Alias of Ping.
  

Typedefs

• typedef int(* STRCMP )(const char *s1, const char *s2, size_t n)

  Type of general strncmp function.
  

Enumerations

• enum SBPolicyType { SB_POLICY_ALWAYS, SB_POLICY_AUTOMATIC, SB_POLICY_NEVER }

  Scroll bar display policies in scrolled window.

  More...
  

Functions

• MG_EXPORT void GUIAPI DisabledTextOutEx (HDC hdc, HWND hwnd, int x, int y, const char *szText)

  Outputs disabled (grayed) text.
  

• MG_EXPORT HWND CreateToolTipWin (HWND hParentWnd, int x, int y, int timeout_ms, const char *text,...)

  Creates a tool tip window.
  

• MG_EXPORT void ResetToolTipWin (HWND hwnd, int x, int y, const char *text,...)

  Resets a tool tip window.
  

• MG_EXPORT void DestroyToolTipWin (HWND hwnd)

  Destroies a tool tip window.
  

• MG_EXPORT void GUIAPI NotifyParentEx (HWND hwnd, int id, int code, DWORD add_data)

  Sends a notification message to the parent.
  

• MG_EXPORT void GUIAPI Ping (void)

  Makes a beep sound.
  

• MG_EXPORT void GUIAPI Tone (int frequency_hz, int duration_ms)

  Makes a tone.
  

• MG_EXPORT void *GUIAPI GetOriginalTermIO (void)

  Gets termios structure of the original terminal before initializing MiniGUI.
  

---

Define Documentation

#define Beep   Ping

Alias of Ping.

See also:

Ping

Definition at line 2444 of file minigui.h.

#define NotifyParent	(	hwnd,
		id,
		code		)	NotifyParentEx(hwnd, id, code, 0)

Sends a notification message to the parent, but without additional data.

Parameters:

	hwnd	The handle to current control window.
	id	The identifier of current control.
	code	The notification code.

Note:

This function is actually a macro of NotifyParentEx with dwAddData being zero.

See also:

NotifiyParentEx

Definition at line 195 of file ctrlhelper.h.

---

Typedef Documentation

typedef int(* STRCMP)(const char *s1, const char *s2, size_t n)

Type of general strncmp function.

The function compares the two strings s1 and s2. It returns an integer less than, equal to, or greater than zero if s1 is found, respectively, to be less than, to match, or be greater than s2.

Note that it only compares the first (at most) n characters of s1 and s2.

Definition at line 208 of file ctrlhelper.h.

---

Enumeration Type Documentation

enum SBPolicyType

Scroll bar display policies in scrolled window.

Enumerator:

SB_POLICY_ALWAYS	The scroll bar is always visible
SB_POLICY_AUTOMATIC	The scroll bar is shown or hided automatically
SB_POLICY_NEVER	The scroll bar is never visbile

Definition at line 56 of file ctrlhelper.h.

---

Function Documentation

HWND CreateToolTipWin	(	HWND	hParentWnd,
		int	x,
		int	y,
		int	timeout_ms,
		const char *	text,
			...
	)

Creates a tool tip window.

This function creates a tool tip window and returns the handle to it. You can call DestroyToolTipWin to destroy it. This function also receives printf-like arguments to format a string.

Note that the tool tip window will disappear automatically after the specified milliseconds by timeout_ms if timeout_ms is larger than 9 ms.

Parameters:

	hParentWnd	The hosting main window.
	x	The position of the tool tip window.
	y	The position of the tool tip window.
	timeout_ms	The timeout value of the tool tip window.
	text	The format string.

Returns:

The handle to the tool tip window on success, HWND_INVALID on error.

See also:

ResetToolTipWin, DestroyToolTipWin

void DestroyToolTipWin

(

HWND

hwnd

)

Destroies a tool tip window.

This function destroies the specified tool tip window hwnd, which is returned by CreateToolTipWin.

Parameters:

hwnd

The handle to the tool tip window.

See also:

CreateToolTipWin

void GUIAPI DisabledTextOutEx	(	HDC	hdc,
		HWND	hwnd,
		int	x,
		int	y,
		const char *	szText
	)

Outputs disabled (grayed) text.

This function outputs a grayed text at the specified position.

Parameters:

	hdc	The device context.
	hwnd	Tell the function to draw with the color definitions of this window.
	x	The x-coordinate of start point.
	y	The y-coordinate of start point.
	szText	The null-terminated text to be output.

See also:

TextOut, DrawText

void *GUIAPI GetOriginalTermIO

(

void

)

Gets termios structure of the original terminal before initializing MiniGUI.

Returns:

The pointer to the original termios structure.

void GUIAPI NotifyParentEx	(	HWND	hwnd,
		int	id,
		int	code,
		DWORD	add_data
	)

Sends a notification message to the parent.

By default, the notification from a control will be sent to its parent window within a MSG_COMMAND messsage.

Since version 1.2.6, MiniGUI defines the Nofication Callback Procedure for control. You can specify a callback function for a control by calling SetNotificationCallback to receive and handle the notification from the control.

If you have defined the Notificaton Callback Procedure for the control, calling NotifyParentEx will call the notification callback procedure, not send the notification message to the parent.

Note that if the control has WS_EX_NOPARENTNOTIFY style, this function will not notify the parent.

Parameters:

	hwnd	The handle to current control window.
	id	The identifier of current control.
	code	The notification code.
	add_data	The additional data of the notification.

See also:

SetNotificationCallback

void GUIAPI Ping

(

void

)

Makes a beep sound.

See also:

Beep

void ResetToolTipWin	(	HWND	hwnd,
		int	x,
		int	y,
		const char *	text,
			...
	)

Resets a tool tip window.

This function resets the tool tip window specified by hwnd, including its position, text displayed in it, and the visible status. If the tool tip is invisible, it will become visible.

This function also receives printf-like arguments to format a string.

Parameters:

	hwnd	The tool tip window handle returned by CreateToolTipWin.
	x	The new position of the tool tip window.
	y	The new position of the tool tip window.
	text	The new format string.

See also:

CreateToolTipWin, DestroyToolTipWin

void GUIAPI Tone	(	int	frequency_hz,
		int	duration_ms
	)

Makes a tone.

This function will return after the tone. Thus, your program will be blocked when the tone is being played.

Parameters:

	frequency_hz	The frequency of the tone in hertz.
	duration_ms	The duration of the tone in millisecond.

Bug:

When MiniGUI runs on X Window or RTOS, the tone can not be played correctly.

See also:

Ping