Modules
	Notification codes of srollbar control

Macros
#define	MSG_SETCURSOR 0x0020
	Sets cursor shape in the client area. More...

#define	MSG_NCHITTEST 0x0021
	Hit test in non-client area. This is an async message. More...

#define	MSG_HITTEST MSG_NCHITTEST
	Hit test in non-client area. More...

#define	MSG_CHANGESIZE 0x0022
	Change window size. More...

#define	MSG_QUERYCLIENTAREA 0x0024
	Query client area. More...

#define	MSG_SIZECHANGING 0x0025
	Indicates the size of the window is being changed. More...

#define	MSG_SIZECHANGED 0x0026
	Indicates the size of the window has been changed. More...

#define	MSG_CSIZECHANGED 0x0027
	Indicates the size of the client area of the window has been changed. More...

#define	MSG_SETFOCUS 0x0030
	Indicates that the window has gained the input focus. More...

#define	MSG_KILLFOCUS 0x0031
	Indicates that the window has lost the input focus. More...

#define	MSG_MOUSEACTIVE 0x0032
	Indicates that the window has gained the input focus because the user clicked the window. More...

#define	MSG_ACTIVE 0x0033
	Indicates that the window has gained the input focus because the user clicked the window. More...

#define	MSG_CHILDHIDDEN 0x0034
	Hide child window. More...

#define	MSG_ACTIVEMENU 0x0040
	Indicates that the user activates the menu bar and tracks it. More...

#define	MSG_DEACTIVEMENU 0x0041
	Indicates the end of the tracking of a menu bar or a popup menu. More...

#define	MSG_HSCROLL 0x0042
	Indicates that the user has clicked the horizontal scroll bar. More...

#define	MSG_VSCROLL 0x0043
	Indicates that the user has clicked the vertical scroll bar. More...

#define	MSG_NCSETCURSOR 0x0044
	Sets cursor shape in the non-client area. More...

#define	MSG_MOUSEMOVEIN 0x0050
	Indicates the mouse is moved in/out the area of the window. More...

#define	MSG_WINDOWDROPPED 0x0051
	Indicates that user dropped window. server to client; (wParam, lParam): result rectangle. More...

Detailed Description

Macro Definition Documentation

#define MSG_ACTIVE 0x0033

Indicates that the window has gained the input focus because the user clicked the window.

This message is sent to the window procedure after the user clicked the window and it has gained the input focus.

Definition at line 883 of file window.h.

#define MSG_ACTIVEMENU 0x0040

Indicates that the user activates the menu bar and tracks it.

This message is sent to the window procedure when the user activates the menu bar and tracks it.

If you want to change the states of menu items in the submenu before displaying it, you can handle this message.

 MSG_ACTIVEMENU
 int pos = (int)wParam;
 HMENU submenu = (HMENU)lParam;

Parameters

pos	The position of the activated submenu. The position value of the first submenu is 0.
submenu	The handle to the activated submenu.

Example:

/*
 * This handler checks the specified menu items to contain
 * a radio bitmap by calling CheckMenuRadioItem function,
 * if the submenu at position 2 has been activated.
 */
        case MSG_ACTIVEMENU:
            if (wParam == 2) {
                CheckMenuRadioItem ((HMENU)lParam, 
                    IDM_40X15, IDM_CUSTOMIZE, 
                    pConInfo->termType, MF_BYCOMMAND);
                CheckMenuRadioItem ((HMENU)lParam, 
                    IDM_DEFAULT, IDM_BIG5, 
                    pConInfo->termCharset, MF_BYCOMMAND);
            }
        break;

Definition at line 919 of file window.h.

#define MSG_CHANGESIZE 0x0022

Change window size.

Definition at line 763 of file window.h.

#define MSG_CHILDHIDDEN 0x0034

Hide child window.

Definition at line 889 of file window.h.

#define MSG_CSIZECHANGED 0x0027

Indicates the size of the client area of the window has been changed.

This message is sent as a notification to the window when the size of the client area has been changed.

 MSG_CSIZECHANGED
 int client_width = (int)wParam;
 int client_height = (int)lParam;

Parameters

client_width	The width of the client area.
client_height	The height of the client area.

Definition at line 839 of file window.h.

#define MSG_DEACTIVEMENU 0x0041

Indicates the end of the tracking of a menu bar or a popup menu.

This message is sent to the window procedure when the user has closed the tracking menu bar or popup menu.

 MSG_DEACTIVEMENU
 HMENU menubar = (HMENU)wParam;
 HMENU submenu = (HMENU)lParam;

Parameters

menubar	The handle to the menu bar. It will be zero when the deactivated menu is a popup menu.
submenu	The handle to the submenu.

Definition at line 938 of file window.h.

#define MSG_HITTEST MSG_NCHITTEST

Hit test in non-client area.

See also: MSG_NCHITTEST

Definition at line 757 of file window.h.

#define MSG_HSCROLL 0x0042

Indicates that the user has clicked the horizontal scroll bar.

This message is sent to the window procedure when the user has clicked the horizontal scroll bar and changed the position of the thumb.

1 MSG_HSCROLL

2 int hs_nc = (int)wParam;

Parameters

hs_nc

The scrolling code, can be one of the following values:

SB_LINELEFT
The user clicked the left arrow on the bar.
SB_LINERIGHT
The user clicked the right arrow on the bar.
SB_PAGELEFT
The user clicked the left page area on the bar.
SB_PAGERIGHT
The user clicked the right page area on the bar.
SB_THUMBPOSITION
The user set a new thumb position.
SB_THUMBTRACK
The user is draging and tracking the thumb.
SB_ENDSCROLL
The end of scrolling.

Definition at line 1067 of file window.h.

#define MSG_KILLFOCUS 0x0031

Indicates that the window has lost the input focus.

Parameters

lparam The parameter passed into used for pass killfocus msg to child control if lparam > 0.

This message is sent to the window procedure after the window losts the input focus.

Definition at line 863 of file window.h.

#define MSG_MOUSEACTIVE 0x0032

Indicates that the window has gained the input focus because the user clicked the window.

This message is sent to the window procedure after the user clicked the window and it has gained the input focus.

Definition at line 873 of file window.h.

#define MSG_MOUSEMOVEIN 0x0050

Indicates the mouse is moved in/out the area of the window.

This message is posted to the window when the user moves the mouse in/out the area of the window.

1 MSG_MOUSEMOVEIN

2 BOOL in_out = (BOOL)wParam;

Parameters

in_out Indicates whether the mouse has been moved in the window or out the window.

Definition at line 1128 of file window.h.

#define MSG_NCHITTEST 0x0021

Hit test in non-client area. This is an async message.

Definition at line 749 of file window.h.

#define MSG_NCSETCURSOR 0x0044

Sets cursor shape in the non-client area.

This message is posted to the window under the cursor when the user moves the mouse in order to give the chance to change the cursor shape. The default handler set the cursor shape to the default cursor of the window. If you set a new cursor shape, your message handler should return immediately.

See also: MSG_SETCURSOR

Definition at line 1111 of file window.h.

#define MSG_QUERYCLIENTAREA 0x0024

Query client area.

Definition at line 772 of file window.h.

#define MSG_SETCURSOR 0x0020

Sets cursor shape in the client area.

This message is posted to the window under the cursor when the user moves the mouse in order to give the chance to change the cursor shape. The default handler set the cursor shape to the default cursor of the window. If you set a new cursor shape, your message handler should return immediately.

 MSG_SETCURSOR
 int cx = LOSWORD (lParam);
 int cy = HISWORD (lParam);

Parameters

cx,cy The client coordinates of the cursor.

Example:

/*
 * The following MSG_SETCURSOR handler set the cursor
 * shape to the arrow cursor when the window is disabled.
 */
case MSG_SETCURSOR:
    if (GetWindowStyle (hwnd) & WS_DISABLED) {
        SetCursor (GetSystemCursor (IDC_ARROW));
        return 0;
    }
    break;

See also: MSG_NCSETCURSOR

Definition at line 683 of file window.h.

#define MSG_SETFOCUS 0x0030

Indicates that the window has gained the input focus.

Parameters

lparam The parameter passed into used for pass setfocus msg to child control if lparam > 0.

This message is sent to the window procedure after the window gains the input focus.

Definition at line 851 of file window.h.

#define MSG_SIZECHANGED 0x0026

Indicates the size of the window has been changed.

This message is sent to the window when the size has been changed. If you want adjust the size of the client area of the window, you should handle this message, change the values of the client area, and return non-zero value to indicate that the client area has been modified.

1 MSG_SIZECHANGED

2 RECT* rcClient = (RECT*)lParam;

Parameters

rcClient The pointer to a RECT structure which contains the new client area.

Example:

                case MSG_SIZECHANGED:
                {
                        RECT* rcClient = (RECT*)lParam;
                        rcClient->right = rcClient->left + _WIDTH;
                        rcClient->bottom = rcClient->top + _HEIGHT;
                        return 1;
                }

Definition at line 821 of file window.h.

#define MSG_SIZECHANGING 0x0025

Indicates the size of the window is being changed.

This message is sent to the window when the size is being changed. If you want to control the actual position and size of the window when the size is being changed (this may be caused by MoveWindow or other functions), you should handle this message, and return the actual position and size of the window through the second parameter.

 MSG_SIZECHANGING
 const RECT* rcExpect = (const RECT*)wParam;
 RECT* rcResult = (RECT*)lParam;

Parameters

rcExpect	The expected size of the window after changing.
rcResult	The actual size of the window after changing.

Example:

/*
 * The handler set the actual size of the window always
 * to be _WIDTH wide and _HEIGHT high.
 */
                case MSG_SIZECHANGING:
                {
                        const RECT* rcExpect = (const RECT*)wParam;
                        RECT* rcResult = (RECT*)lParam;
                        rcResult->left = rcExpect->left;
                        rcResult->top = rcExpect->top;
                        rcResult->right = rcExpect->left + _WIDTH;
                        rcResult->bottom = rcExpect->top + _HEIGHT;
                    return 0;
                }

Definition at line 797 of file window.h.

#define MSG_VSCROLL 0x0043

Indicates that the user has clicked the vertical scroll bar.

This message is sent to the window procedure when the user has clicked the vertical scroll bar and changed the position of the thumb.

1 MSG_HSCROLL

2 int vs_nc = (int)wParam;

Parameters

vs_nc

The scrolling code, can be one of the following values:

SB_LINEUP
The user clicked the up arrow on the bar.
SB_LINEDOWN
The user clicked the down arrow on the bar.
SB_PAGEUP
The user clicked the up page area on the bar.
SB_PAGEDOWN
The user clicked the down page area on the bar.
SB_THUMBPOSITION
The user set a new thumb position.
SB_THUMBTRACK
The user is draging and tracking the thumb.
SB_ENDSCROLL
The end of scrolling.

Definition at line 1097 of file window.h.

#define MSG_WINDOWDROPPED 0x0051

Indicates that user dropped window. server to client; (wParam, lParam): result rectangle.

Definition at line 1135 of file window.h.

Modules

Macros

Detailed Description

Macro Definition Documentation