Mouse event messages

Macros
#define	MSG_LBUTTONDOWN   0x0001
	Left mouse button down message. More...
#define	MSG_LBUTTONUP   0x0002
	Left mouse button up message. More...
#define	MSG_LBUTTONDBLCLK   0x0003
	Left mouse button double clicked message. More...
#define	MSG_MOUSEMOVE   0x0004
	The mouse moved message. More...
#define	MSG_RBUTTONDOWN   0x0005
	Right mouse button down message. More...
#define	MSG_RBUTTONUP   0x0006
	Right mouse button up message. More...
#define	MSG_RBUTTONDBLCLK   0x0007
	Right mouse button double clicked message. More...
#define	MSG_MBUTTONDOWN   0x0008
	Middle mouse button down message. More...
#define	MSG_MBUTTONUP   0x0009
	Middle mouse button up message. More...
#define	MSG_MBUTTONDBLCLK   0x000A
	Middle mouse button double clicked message. More...
#define	MSG_NCLBUTTONDOWN   0x000B
	Left mouse button down message in the non-client area. More...
#define	MSG_NCLBUTTONUP   0x000C
	Left mouse button up message in the non-client area. More...
#define	MSG_NCLBUTTONDBLCLK   0x000D
	Left mouse button double clicked in the non-client area. More...
#define	MSG_NCMOUSEMOVE   0x000E
	Mouse moves in the non-client area. More...
#define	MSG_NCRBUTTONDOWN   0x000F
	Right mouse button down message in the non-client area. More...
#define	MSG_NCRBUTTONUP   0x0010
	Right mouse button up message in the non-client area. More...
#define	MSG_NCRBUTTONDBLCLK   0x0011
	Right mouse button double clicked in the non-client area. More...
#define	MSG_NCMBUTTONDOWN   0x0012
	Middle mouse button down message in the non-client area. More...
#define	MSG_NCMBUTTONUP   0x0013
	Middle mouse button up message in the non-client area. More...
#define	MSG_NCMBUTTONDBLCLK   0x0014
	Middle mouse button double clicked in the non-client area. More...

Detailed Description

Macro Definition Documentation

MSG_LBUTTONDBLCLK

#define MSG_LBUTTONDBLCLK   0x0003

Left mouse button double clicked message.

This message is posted to the window when the user double clicks the left button of the mouse in the client area of the window.

MSG_LBUTTONDBLCLK
DWORD key_flags = (DWORD)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

key_flags	The shift key status when this message occurred.
x_pos,y_pos	The position of the mouse in client coordinates.

See also

MSG_RBUTTONDBLCLK, Macros for key codes and shift status

Definition at line 166 of file window.h.

MSG_LBUTTONDOWN

#define MSG_LBUTTONDOWN   0x0001

Left mouse button down message.

This message is posted to the window when the user presses down the left button of the mouse in the client area of the window.

MSG_LBUTTONDOWN
DWORD key_flags = (DWORD)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

key_flags	The shift key status when this message occurred.
x_pos,y_pos	The position of the mouse in client coordinates.

See also

MSG_LBUTTONUP, Macros for key codes and shift status

Example:

/*
 * This example trys to handle the event when the user presses
 * left button and right button of the mouse at the same time.
 */
LRESULT MyWinProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message) {
        case MSG_LBUTTONDOWN:
            if (wParam & KS_RIGHTBUTTON) {
                // Left button and right button both are pressed.
                break;
            }
            break;

        case MSG_RBUTTONDOWN:
            if (wParam & KS_LEFTBUTTON) {
                // Left button and right button both are pressed.
                break;
            }
            break;

        case MSG_MOUSEMOVE:
            if (wParam & KS_CTRL) {
                // User moves the mouse as the <Ctrl> key is down.
                break;
            }
            break;

        ...
    }

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

Definition at line 124 of file window.h.

MSG_LBUTTONUP

#define MSG_LBUTTONUP   0x0002

Left mouse button up message.

This message is posted to the window when the user releases up the left button of the mouse in the client area of the window.

MSG_LBUTTONUP
DWORD key_flags = (DWORD)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

key_flags	The shift key status when this message occurred.
x_pos,y_pos	The position of the mouse in client coordinates.

See also

MSG_LBUTTONDOWN, Macros for key codes and shift status

Definition at line 145 of file window.h.

MSG_MBUTTONDBLCLK

#define MSG_MBUTTONDBLCLK   0x000A

Middle mouse button double clicked message.

This message is posted to the window when the user double clicks the middle button of the mouse in the client area of the window.

MSG_MBUTTONDBLCLK
DWORD key_flags = (DWORD)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

key_flags	The shift key status when this message occurred.
x_pos,y_pos	The position of the mouse in client coordinates.

See also

MSG_LBUTTONDBLCLK, Macros for key codes and shift status

Definition at line 320 of file window.h.

MSG_MBUTTONDOWN

#define MSG_MBUTTONDOWN   0x0008

Middle mouse button down message.

This message is posted to the window when the user presses down the middle button of the mouse in the client area of the window.

MSG_MBUTTONDOWN
DWORD key_flags = (DWORD)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

key_flags	The shift key status when this message occurred.
x_pos,y_pos	The position of the mouse in client coordinates.

See also

MSG_MBUTTONUP, Macros for key codes and shift status

Since 4.0.0

Definition at line 276 of file window.h.

MSG_MBUTTONUP

#define MSG_MBUTTONUP   0x0009

Middle mouse button up message.

This message is posted to the window when the user releases up the middle button of the mouse in the client area of the window.

MSG_MBUTTONUP
DWORD key_flags = (DWORD)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

key_flags	The shift key status when this message occurred.
x_pos,y_pos	The position of the mouse in client coordinates.

See also

MSG_MBUTTONDOWN, Macros for key codes and shift status

Since 4.0.0

Definition at line 299 of file window.h.

MSG_MOUSEMOVE

#define MSG_MOUSEMOVE   0x0004

The mouse moved message.

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

MSG_MOUSEMOVE
DWORD key_flags = (DWORD)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

key_flags	The shift key status when this message occurred.
x_pos,y_pos	The position of the mouse in client coordinates.

See also

Macros for key codes and shift status

Definition at line 187 of file window.h.

MSG_NCLBUTTONDBLCLK

#define MSG_NCLBUTTONDBLCLK   0x000D

Left mouse button double clicked in the non-client area.

This message is posted to the window when the user double clicks the left button of the mouse in the non-client area of the window.

MSG_NCLBUTTONDBLCLK
int hit_code = (int)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

hit_code	The hit test code which tells the area of the mouse.
x_pos,y_pos	The position of the mouse in window coordinates.

See also

MSG_NCRBUTTONDBLCLK, MSG_NCHITTEST

Definition at line 385 of file window.h.

MSG_NCLBUTTONDOWN

#define MSG_NCLBUTTONDOWN   0x000B

Left mouse button down message in the non-client area.

This message is posted to the window when the user presses down the left button of the mouse in the non-client area of the window.

MSG_NCLBUTTONDOWN
int hit_code = (int)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

hit_code	The hit test code which tells the area of the mouse.
x_pos,y_pos	The position of the mouse in window coordinates.

See also

MSG_NCLBUTTONUP, MSG_NCHITTEST

Definition at line 343 of file window.h.

MSG_NCLBUTTONUP

#define MSG_NCLBUTTONUP   0x000C

Left mouse button up message in the non-client area.

This message is posted to the window when the user releases up the left button of the mouse in the non-client area of the window.

MSG_NCLBUTTONUP
int hit_code = (int)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

hit_code	The hit test code which tells the area of the mouse.
x_pos,y_pos	The position of the mouse in window coordinates.

See also

MSG_NCLBUTTONDOWN, MSG_NCHITTEST

Definition at line 364 of file window.h.

MSG_NCMBUTTONDBLCLK

#define MSG_NCMBUTTONDBLCLK   0x0014

Middle mouse button double clicked in the non-client area.

This message is posted to the window when the user double clicks the middle button of the mouse in the non-client area of the window.

MSG_NCMBUTTONDBLCLK
int hit_code = (int)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

hit_code	The hit test code which tells the area of the mouse.
x_pos,y_pos	The position of the mouse in window coordinates.

See also

MSG_NCLBUTTONDBLCLK, MSG_NCHITTEST

Definition at line 532 of file window.h.

MSG_NCMBUTTONDOWN

#define MSG_NCMBUTTONDOWN   0x0012

Middle mouse button down message in the non-client area.

This message is posted to the window when the user presses down the middle button of the mouse in the non-client area of the window.

MSG_NCMBUTTONDOWN
int hit_code = (int)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

hit_code	The hit test code which tells the area of the mouse.
x_pos,y_pos	The position of the mouse in window coordinates.

See also

MSG_NCMBUTTONUP, MSG_NCHITTEST

Definition at line 490 of file window.h.

MSG_NCMBUTTONUP

#define MSG_NCMBUTTONUP   0x0013

Middle mouse button up message in the non-client area.

This message is posted to the window when the user releases up the middle button of the mouse in the non-client area of the window.

MSG_NCMBUTTONUP
int hit_code = (int)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

hit_code	The hit test code which tells the area of the mouse.
x_pos,y_pos	The position of the mouse in window coordinates.

See also

MSG_NCMBUTTONDOWN, MSG_NCHITTEST

Definition at line 511 of file window.h.

MSG_NCMOUSEMOVE

#define MSG_NCMOUSEMOVE   0x000E

Mouse moves in the non-client area.

This message is posted to the window when the user moves the mouse in the non-client area of the window.

MSG_NCMOUSEMOVE
int hit_code = (int)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

hit_code	The hit test code which tells the area of the mouse.
x_pos,y_pos	The position of the mouse in window coordinates.

See also

MSG_NCHITTEST

Definition at line 406 of file window.h.

MSG_NCRBUTTONDBLCLK

#define MSG_NCRBUTTONDBLCLK   0x0011

Right mouse button double clicked in the non-client area.

This message is posted to the window when the user double clicks the right button of the mouse in the non-client area of the window.

MSG_NCRBUTTONDBLCLK
int hit_code = (int)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

hit_code	The hit test code which tells the area of the mouse.
x_pos,y_pos	The position of the mouse in window coordinates.

See also

MSG_NCLBUTTONDBLCLK, MSG_NCHITTEST

Definition at line 469 of file window.h.

MSG_NCRBUTTONDOWN

#define MSG_NCRBUTTONDOWN   0x000F

Right mouse button down message in the non-client area.

This message is posted to the window when the user presses down the right button of the mouse in the non-client area of the window.

MSG_NCRBUTTONDOWN
int hit_code = (int)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

hit_code	The hit test code which tells the area of the mouse.
x_pos,y_pos	The position of the mouse in window coordinates.

See also

MSG_NCRBUTTONUP, MSG_NCHITTEST

Definition at line 427 of file window.h.

MSG_NCRBUTTONUP

#define MSG_NCRBUTTONUP   0x0010

Right mouse button up message in the non-client area.

This message is posted to the window when the user releases up the right button of the mouse in the non-client area of the window.

MSG_NCRBUTTONUP
int hit_code = (int)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

hit_code	The hit test code which tells the area of the mouse.
x_pos,y_pos	The position of the mouse in window coordinates.

See also

MSG_NCRBUTTONDOWN, MSG_NCHITTEST

Definition at line 448 of file window.h.

MSG_RBUTTONDBLCLK

#define MSG_RBUTTONDBLCLK   0x0007

Right mouse button double clicked message.

This message is posted to the window when the user double clicks the right button of the mouse in the client area of the window.

MSG_RBUTTONDBLCLK
DWORD key_flags = (DWORD)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

key_flags	The shift key status when this message occurred.
x_pos,y_pos	The position of the mouse in client coordinates.

See also

MSG_LBUTTONDBLCLK, Macros for key codes and shift status

Definition at line 253 of file window.h.

MSG_RBUTTONDOWN

#define MSG_RBUTTONDOWN   0x0005

Right mouse button down message.

This message is posted to the window when the user presses down the right button of the mouse in the client area of the window.

MSG_RBUTTONDOWN
DWORD key_flags = (DWORD)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

key_flags	The shift key status when this message occurred.
x_pos,y_pos	The position of the mouse in client coordinates.

See also

MSG_RBUTTONUP, Macros for key codes and shift status

Example:

/*
 * This example trys to handle the event when the user presses
 * left button and right button of the mouse at the same time.
 */
LRESULT MyWinProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message) {
        case MSG_LBUTTONDOWN:
            if (wParam & KS_RIGHTBUTTON) {
                // Left button and right button both are pressed.
                break;
            }
            break;

        case MSG_RBUTTONDOWN:
            if (wParam & KS_LEFTBUTTON) {
                // Left button and right button both are pressed.
                break;
            }
            break;

        case MSG_MOUSEMOVE:
            if (wParam & KS_CTRL) {
                // User moves the mouse as the <Ctrl> key is down.
                break;
            }
            break;

        ...
    }

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

Definition at line 211 of file window.h.

MSG_RBUTTONUP

#define MSG_RBUTTONUP   0x0006

Right mouse button up message.

This message is posted to the window when the user releases up the right button of the mouse in the client area of the window.

MSG_RBUTTONUP
DWORD key_flags = (DWORD)wParam;
int x_pos = LOSWORD (lParam);
int y_pos = HISWORD (lParam);

Parameters

key_flags	The shift key status when this message occurred.
x_pos,y_pos	The position of the mouse in client coordinates.

See also

MSG_RBUTTONDOWN, Macros for key codes and shift status

Definition at line 232 of file window.h.