钩子(HOOK)函数教程(三十)

时间:2010-04-21 点击:统计中..

结构8 MOUSEHOOKSTRUCT Structure

The MOUSEHOOKSTRUCT structure contains information about a mouse event passed to a WH_MOUSE hook procedure, MouseProc.

MOUSEHOOKSTRUCT结构包含有传递给WH_MOUSE钩子子程MouseProc的,关于鼠标事件的信息。

Syntax语法

typedef struct {

    POINT pt;

    HWND hwnd;

    UINT wHitTestCode;

    ULONG_PTR dwExtraInfo;

} MOUSEHOOKSTRUCT, *PMOUSEHOOKSTRUCT;

Members成员

pt Specifies a POINT structure that contains the x- and y-coordinates of the cursor, in screen coordinates. 指定在屏幕坐标系下,包含有光标xy坐标的POINT结构。

hwnd : Handle to the window that will receive the mouse message corresponding to the mouse event. 希望对鼠标事件做出响应、接收鼠标消息的窗体的句柄。

wHitTestCode Specifies the hit-test value. For a list of hit-test values, see the description of the WM_NCHITTEST message. 指定点击测试值。查看WM_NCHITTEST消息可以得到值的列表。

dwExtraInfo Specifies extra information associated with the message. 指定和该消息相关联的附加信息。

 

结构9MOUSEHOOKSTRUCTEX Structure

The MOUSEHOOKSTRUCTEX structure contains information about a mouse event passed to a WH_MOUSE hook procedure, MouseProc.

MOUSEHOOKSTRUCTEX结构包含有传递给WH_MOUSE钩子子程MouseProc的关于鼠标事件的信息。

This is an extension of the MOUSEHOOKSTRUCT structure that includes information about wheel movement or the use of the X button.

这是对MOUSEHOOKSTRUCT的扩展。包含有滚轮的活动和X键的使用。

Syntax语法

typedef struct {

    MOUSEHOOKSTRUCT MOUSEHOOKSTRUCT;

    DWORD mouseData;

} MOUSEHOOKSTRUCTEX, *PMOUSEHOOKSTRUCTEX;

Members成员

MOUSEHOOKSTRUCT

The members of a MOUSEHOOKSTRUCT structure make up the first part of this structure.

MOUSEHOOKSTRUCT结构的成员构成了该结构的前面部分。

mouseData

If the message is WM_MOUSEWHEEL, the HIWORD of this member is the wheel delta. The LOWORD is undefined and reserved. A positive value indicates that the wheel was rotated forward, away from the user; a negative value indicates that the wheel was rotated backward, toward the user. One wheel click is defined as WHEEL_DELTA, which is 120.

如果消息是WM_MOUSEWHEEL,该成员的HIWORD就是wheel deltaLOWORD做为保留未定义。正值表示滚轮向前旋转,即远离用户的方向;负值表示滚轮向后旋转,即朝向用户的方向。滚轮的点击被定义为WHEEL_DELTA, 具体值为120

If the message is WM_XBUTTONDOWN, WM_XBUTTONUP, WM_XBUTTONDBLCLK, WM_NCXBUTTONDOWN, WM_NCXBUTTONUP, or WM_NCXBUTTONDBLCLK, the HIWORD of mouseData specifies which X button was pressed or released, and the LOWORD is undefined and reserved. This member can be one or more of the following values. Otherwise, mouseData is not used.

如果消息是WM_XBUTTONDOWN, WM_XBUTTONUP, WM_XBUTTONDBLCLK, WM_NCXBUTTONDOWN, WM_NCXBUTTONUP, 或者 WM_NCXBUTTONDBLCLK,  mouseData  HIWORD值指定哪个X键被按下或者释放,LOWORD做为保留未定义。该成员可以是以下值中的一个或者多个。否则,mouseData未使用。

1XBUTTON1 The first X button was pressed or released. 第一个X键被按下或者释放。

2XBUTTON2 The second X button was pressed or released.第二个X键被按下或者释放。

Helios  2007-5-31

 

赞助商链接

热门内容

相关内容



联系我们

联系方式