C winform 獲取滑鼠點選位置

說明：該篇隨筆的**內容並非出自本人，是在其他**搜尋的，出處已經不記得了，本次隨筆只為記錄，目的幫助自己，幫助他人。

實現的原理也不做多的贅述，直接上**。

第乙個類是需要用到的windows api

public

class
win32api
[structlayout(layoutkind.sequential)]
public
class
mousehookstruct
public
delegate
int hookproc(int
ncode, intptr wparam, intptr lparam);
//安裝鉤子
[dllimport("
user32.dll
", charset = charset.auto, callingconvention =callingconvention.stdcall)]
public
static
extern
int setwindowshookex(int idhook, hookproc lpfn, intptr hinstance, int
threadid);
//解除安裝鉤子
[dllimport("
user32.dll
", charset = charset.auto, callingconvention =callingconvention.stdcall)]
public
static
extern
bool unhookwindowshookex(int
idhook);
//呼叫下乙個鉤子
[dllimport("
user32.dll
", charset = charset.auto, callingconvention =callingconvention.stdcall)]
public
static
extern
int callnexthookex(int idhook, int
ncode, intptr wparam, intptr lparam);
}

第二個類是用於監控滑鼠移動，滑鼠點選的

public

class
mousehook
set }}}
private
inthhook;
private
const
int wm_lbuttondown = 0x201
; 
private
const
int wm_rbuttondown = 0x204
; 
public
const
int wh_mouse_ll = 14
; 
public
win32api.hookproc hproc;
public
mousehook()
public
intsethook()
public
void
unhook()
private
int mousehookproc(int
ncode, intptr wparam, intptr lparam)
else
var e = new mouseeventargs(button, clickcount, point.x, point.y, 0
); mouseclickevent(
this
, e);
}this.point = new
point(mymousehookstruct.pt.x, mymousehookstruct.pt.y);
return
win32api.callnexthookex(hhook, ncode, wparam, lparam);}}
public
delegate
void mousemovehandler(object
sender, mouseeventargs e);
public
event
mousemovehandler mousemoveevent;
public
delegate
void mouseclickhandler(object
sender, mouseeventargs e);
public
event
mouseclickhandler mouseclickevent;
}

最後直接在窗體中呼叫重寫的事件即可

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