在Windows操作系统中,当用户按下"PrintScreen"按钮后,Windows自动将当前屏幕的图像拷贝到系统剪贴板中,这时可以通过"画笔"这个小程序将剪贴板中的内容保存成图像文件,可以看出,如果需要将当前屏幕保存下来还是比较麻烦的,能否可以自己编写一个应用程序,自动将当前屏幕的内容保存到一个图像文件中去呢?这个答案是肯定的,本实例应用程序就是利用通用的热键管理DLL库实现的热键功能,在收到热键通知后截取屏幕的内容并保存到bmp文件中。例如我们设置图片保存路径为c:\,热键为F9 + Control,然后按Change按钮设置好热键,那么当我们按下CTRL+F9后,当前界面将以BMP图像文件的格式被保存在C:\目录下。程序编译运行后的界面效果如图一所示:
Kl aZZJ
4P4 Fo1 一、实现方法
Q$fRi[/L *TM;trfz 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
ksu}+i,a '6o`^u> #pragma data_seg("shareddata")
hEv=T'*,K) HHOOK hHook =NULL; //钩子句柄
CP]S-o}yd UINT nHookCount =0; //挂接的程序数目
k'@7ZH static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
z;y^t4
^9 static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
YXX36 static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
J+71FP`ZH static int KeyCount =0;
&SjHrOG? static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
.|-l+ #pragma data_seg()
hg?j)jl| <}EV*`w4 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
so!w !O@@ 1tc]rC4h DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
h6\3vfj^f <'}b*wUB BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
p<=(GY- cKey,UCHAR cMask)
v@fe-T&0 {
O}K_l1 BOOL bAdded=FALSE;
-t@y\vZF, for(int index=0;index<MAX_KEY;index++){
b W=.K>| if(hCallWnd[index]==0){
3!.H^v?
hCallWnd[index]=hWnd;
':4}O# HotKey[index]=cKey;
+}7Ea:K HotKeyMask[index]=cMask;
>bfYy=/ bAdded=TRUE;
RIy5ww}3| KeyCount++;
s&dO/}3uR] break;
'dIX=/RZ }
&Y54QE". }
Fl_dzh,E return bAdded;
sK`~Csb
iB }
n#+%!HTh //删除热键
)-+\M_JK5 BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
j3x^<a\gJ {
<%d51~@={I BOOL bRemoved=FALSE;
gDQkn {T.% for(int index=0;index<MAX_KEY;index++){
.D8~)ZWN if(hCallWnd[index]==hWnd){
aO.\Qe+j if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
w4e%-Ln hCallWnd[index]=NULL;
bA@
/B' HotKey[index]=0;
H96BqNoO HotKeyMask[index]=0;
V~(EVF{h bRemoved=TRUE;
Gnbfy4Z KeyCount--;
< /;Q8;0 break;
V$/u }
qQfqlD< }
Sl3KpZ }
[3O^0-:6E return bRemoved;
$Wit17j }
r]A"Og_U }P<Qz^sr_ 1~}m.ER DLL中的钩子函数如下:
yZYKwKG PsU9R#HL1 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
R K"&l!o {
UL86-R! BOOL bProcessed=FALSE;
'[Mlmgc5 if(HC_ACTION==nCode)
#yW.o'S+ {
YfE>Pn'r if((lParam&0xc0000000)==0xc0000000){// 有键松开
$[Tt#CJw switch(wParam)
zRwb" {
`]*%:NZP@ case VK_MENU:
t)-*.qZh MaskBits&=~ALTBIT;
(k%GY<
b P break;
W8w3~ case VK_CONTROL:
ry.;u*F MaskBits&=~CTRLBIT;
+>JdYV<?0 break;
9$Ig~W) case VK_SHIFT:
0:Ar|to$m MaskBits&=~SHIFTBIT;
;% 2wGT break;
Ho3dsh) default: //judge the key and send message
duX0Mc.0P break;
F-_%>KJS }
;wJ~ha C for(int index=0;index<MAX_KEY;index++){
$o]r]#B+ if(hCallWnd[index]==NULL)
CY34X2F continue;
^vJ"-{ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
W7H&R, {
P
@zz"~f7 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
U?gl"6x bProcessed=TRUE;
tbtI1"$ }
C>.e+V+': }
9|'
|BC }
>;
aCf#q else if((lParam&0xc000ffff)==1){ //有键按下
i.3cj1 switch(wParam)
#@ 9)h {
G+0><,S case VK_MENU:
9]"S:{KSCn MaskBits|=ALTBIT;
/\na;GI$ break;
M70c{s`w5 case VK_CONTROL:
l0I}&,+ MaskBits|=CTRLBIT;
vt//)*(.$ break;
ujU=JlJ7dl case VK_SHIFT:
K&*iw` MaskBits|=SHIFTBIT;
z9[[C^C break;
Y RPm^kW default: //judge the key and send message
{@?G 9UypA break;
Ck: 9gn }
Rj^7#,993 for(int index=0;index<MAX_KEY;index++){
/ /'Tck if(hCallWnd[index]==NULL)
:z]}ZZ continue;
?AEd(_a!q if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
MhNFW'_ {
j`O7=- SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
}.p<wCPy6 bProcessed=TRUE;
+ :V rip }
/D<"wF }@J }
OA[&Za#w }
P}0*{%jB if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
'l~6ErBSg for(int index=0;index<MAX_KEY;index++){
oh6B3>>+ if(hCallWnd[index]==NULL)
:-?Ct continue;
qz 9tr if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
Mi ; glm SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
wJgX/W //lParam的意义可看MSDN中WM_KEYDOWN部分
n-$VUo }
-D^L}b }
EFAGP${F }
SyO79e*t return CallNextHookEx( hHook, nCode, wParam, lParam );
h{k_6ym }
'n0 .#E_ d6`OXTD 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
3\AM=` 4[TR0bM% BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
9Y/L?km_( BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
[*)Z!) ZPHXzi3j 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
{XgnZ`* 5o#Yt LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
FW8-'~ {
h>alGLN> if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
Rs*vm {
$<|ocUC7 //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
V
>Hf9sZ SaveBmp();
;#TaZN return FALSE;
[$\z'} }
\?D R
s …… //其它处理及默认处理
t|V0x3X }
T$KF<
= C)Jn[/BD k;I &.H 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
EATu KLP\ 3$VxRz) 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
JqCc;Cbd !"Q}R p 二、编程步骤
w%dL8k [3N[i(Wlk 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
Ri#H.T<' B@O@1?c[ 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
at6149B\) #`;/KNp 9 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
WZZ4]cC 1zftrX~v!X 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
-Xz&}QA 5l DFp9 5、 添加代码,编译运行程序。
RKZ6}q1n x0Yse:RE^ 三、程序代码
S[,8TErz |.P/:e9 ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
Fl3#D7K #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
WKmbNvN^ #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
W0XF~ #if _MSC_VER > 1000
Xf
d*D #pragma once
9!U@"~yB #endif // _MSC_VER > 1000
-?6MU~"GK #ifndef __AFXWIN_H__
p'n4)I2# #error include 'stdafx.h' before including this file for PCH
4v'A\~ZU #endif
^V3v{>D> #include "resource.h" // main symbols
^j )BKD- class CHookApp : public CWinApp
K93p"nHN {
]"~51HQZ public:
ZH ,4oF CHookApp();
w$|l{VI // Overrides
dQb.BOI)h // ClassWizard generated virtual function overrides
N]N4^A' //{{AFX_VIRTUAL(CHookApp)
Nt:9 MG>1 public:
@}s$]i$|- virtual BOOL InitInstance();
6rN(_Oi- virtual int ExitInstance();
B[5r|d' //}}AFX_VIRTUAL
CO?Xt+1hR //{{AFX_MSG(CHookApp)
Y+~g\z-]c // NOTE - the ClassWizard will add and remove member functions here.
x9W(cKB'S // DO NOT EDIT what you see in these blocks of generated code !
%XTcP2pRJ //}}AFX_MSG
2Y!S_Hw8 DECLARE_MESSAGE_MAP()
?!VIS>C( };
{HOy_Fiih LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
3WY$WRv BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
2F`cv1 M BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
=gh`JN6 BOOL InitHotkey();
N_Akmh0D BOOL UnInit();
<spZ! #o #endif
J;$N{"M wsU V;S*X% //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
[5$w=u"j #include "stdafx.h"
S8,Z;y #include "hook.h"
P
u0uKE #include <windowsx.h>
LjB;;&VCn #ifdef _DEBUG
8Q{9>^ #define new DEBUG_NEW
;z~n.0' #undef THIS_FILE
>q~l21dUi static char THIS_FILE[] = __FILE__;
,Gk}"w #endif
=*vMA#e #define MAX_KEY 100
2[fN\e{ #define CTRLBIT 0x04
MZJ]Dwt] #define ALTBIT 0x02
HO)/dZNU #define SHIFTBIT 0x01
p&-'|'![l #pragma data_seg("shareddata")
'R<&d}@P*# HHOOK hHook =NULL;
f:B>zp;N UINT nHookCount =0;
;Lm=dd@S: static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
5kNzv~4B,; static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
X^9d/}uTa static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
fq[;%cr4 static int KeyCount =0;
+>~?m*$ static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
Ez~'^s@ #pragma data_seg()
\dQx+f&t HINSTANCE hins;
RP5+d void VerifyWindow();
G~7 i@Zs BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
J[~5U~F //{{AFX_MSG_MAP(CHookApp)
<"D=6jqZ // NOTE - the ClassWizard will add and remove mapping macros here.
] b9-k // DO NOT EDIT what you see in these blocks of generated code!
aVL=K //}}AFX_MSG_MAP
%M|,b!eF END_MESSAGE_MAP()
!2UOC P 3bZIYF2@ CHookApp::CHookApp()
`+:.L>5([ {
!HeSOzN // TODO: add construction code here,
^u}L;`L // Place all significant initialization in InitInstance
/walu+]h }
_p-t<ytnh !\8 ;d8 CHookApp theApp;
wkqX^i7ls LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
%1 vsN-O}8 {
NLPkh,T: BOOL bProcessed=FALSE;
<GHYt#GIZ+ if(HC_ACTION==nCode)
5]I| DHmu {
v:Tzv^ if((lParam&0xc0000000)==0xc0000000){// Key up
[.hyZ}B switch(wParam)
+YLejjQ {
ZOXIT(mg case VK_MENU:
/&F,V+x MaskBits&=~ALTBIT;
'Jf^`ZT} break;
!zj0/Q G\ case VK_CONTROL:
pD]0`L-HJU MaskBits&=~CTRLBIT;
0;4t&v7 break;
Y HSYu case VK_SHIFT:
"8^5>EJWv MaskBits&=~SHIFTBIT;
u]u[(K5F break;
o&AM2U/? default: //judge the key and send message
ac kqH+' break;
dVB~Smsr }
"s!7dKXI" for(int index=0;index<MAX_KEY;index++){
kr$b^"Ku if(hCallWnd[index]==NULL)
#P]#9Ty: continue;
D`J6h,=2l/ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
J_Ltuso {
#ET/ = SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
LK6; ?m bProcessed=TRUE;
A;\7|'4 }
Q#h
9n] 5 }
%AOja+ }
I$E.s*B9 else if((lParam&0xc000ffff)==1){ //Key down
~%?`P/.o switch(wParam)
]EwVpvTw {
|-V&O=!^+ case VK_MENU:
JpsPNa MaskBits|=ALTBIT;
7eWk7&Xul break;
Mu'8;9_6 case VK_CONTROL:
pdJ/&ufh MaskBits|=CTRLBIT;
VJ ^dY; break;
$zB[B;-!$ case VK_SHIFT:
h/B>S MaskBits|=SHIFTBIT;
D]c`B break;
.9md~j:o^s default: //judge the key and send message
yQ#:J9HMJ break;
={LMdC~5X }
#Z6'?p9 for(int index=0;index<MAX_KEY;index++)
L?5Ck<!xG {
^c:Fy+fb if(hCallWnd[index]==NULL)
meN2ZB?Y continue;
Z|%_oR~b| if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
z]b>VpW: {
|t; ~:A SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
*tm0R> ?! bProcessed=TRUE;
JXyM\}9-X }
Ag F,aZU }
JQ4{` =,b }
r$]HIvJD if(!bProcessed){
dnV[ P for(int index=0;index<MAX_KEY;index++){
1hcjSO if(hCallWnd[index]==NULL)
?wnzTbJN continue;
hXqD<? if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
V& C/Z}\ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
v3v[[96p }
uV 7BK+[O }
GnP|x}YM }
Q#nOJ(KV return CallNextHookEx( hHook, nCode, wParam, lParam );
,V*%V; }
R+&jD;U{ !Hys3AP BOOL InitHotkey()
x\Z'2?u} {
t3dlS`O if(hHook!=NULL){
TLoz)&@ nHookCount++;
$Y5)( return TRUE;
Gs3LB/8? }
:n /@z4# else
|&Ym@Jyj hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
6252N]* if(hHook!=NULL)
f4L`.~b'hb nHookCount++;
TEDAb> return (hHook!=NULL);
rj6#1kt }
O(+phRwJ BOOL UnInit()
} :Z#}8 {
H,N)4;F<c if(nHookCount>1){
wm+/e#'& nHookCount--;
?_I[,N?@41 return TRUE;
NJNJjdD> }
J!:SPQ BOOL unhooked = UnhookWindowsHookEx(hHook);
bQ~j=\[r if(unhooked==TRUE){
,=l7:n nHookCount=0;
tU_y6 hHook=NULL;
0{#8',*}m? }
ezPz<iZ\N return unhooked;
26xXl|I }
/="~gq@ {dmj/6Lc BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
^5=B`aich {
xhRngHU\z< BOOL bAdded=FALSE;
To?W?s for(int index=0;index<MAX_KEY;index++){
bT&: fHc if(hCallWnd[index]==0){
b$Vz2Fzx hCallWnd[index]=hWnd;
/%Nr?V HotKey[index]=cKey;
EY \H=@A HotKeyMask[index]=cMask;
;\p KDPr bAdded=TRUE;
H"qOSf{ KeyCount++;
@-+Q#
Zz` break;
_1U1(^) }
8=]Tr3 }
R58-wUto return bAdded;
n_'s=] ~ }
;pnD0bH ij? BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
IEU^#=n {
C:Hoq( BOOL bRemoved=FALSE;
Zfyo-Wk for(int index=0;index<MAX_KEY;index++){
qG<$Ajiin if(hCallWnd[index]==hWnd){
&gjF4~W] if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
qbv#I; hCallWnd[index]=NULL;
q`pP$i: HotKey[index]=0;
4Z/f@ZD HotKeyMask[index]=0;
YX`7Hm, bRemoved=TRUE;
P{u0ftyX} KeyCount--;
'3?\K3S4i break;
6H'HxB4 }
/z}~zO }
6C-z=s)P& }
Ox@sI:CT return bRemoved;
1bH;!J }
JJ%ePgWT X$yN_7|+ void VerifyWindow()
3"O>&Q0c {
U4cY_p? for(int i=0;i<MAX_KEY;i++){
z@w Mc
EH if(hCallWnd
!=NULL){ hEw-
O;T0
if(!IsWindow(hCallWnd)){ og0*Nt+
hCallWnd=NULL; *W
kIq>
HotKey=0; f"St&q>[s
HotKeyMask=0; O)"gS!,
KeyCount--; aJcf`<p
} 95z]9UL
} ca>Z7qT!
} 0X^Ke(/89
} ;g~TWy^o
v{A
KEX*
BOOL CHookApp::InitInstance() /IsS;0K%L
{ i@4~.iZ8
AFX_MANAGE_STATE(AfxGetStaticModuleState()); ?2oHZ%G
hins=AfxGetInstanceHandle(); E<c9#I=
InitHotkey(); HcqfB NM
return CWinApp::InitInstance(); L =8rH5
} g>J<%z,}2
0lv%`,
int CHookApp::ExitInstance() AGbhJ=tB
{ >$ e9igwe
VerifyWindow(); C?2'+K
UnInit(); $_x^lr
return CWinApp::ExitInstance(); Jm42b4
} bP^Je&nS*
NM06QzE
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file ZfB"
E
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) YJo["Q
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ E>}4$q[r
#if _MSC_VER > 1000 t1%_DPD%W
#pragma once qs QNjt
#endif // _MSC_VER > 1000 +Xemf?
OD5m9XS
class CCaptureDlg : public CDialog DS'n
{ ~}+Hgi
// Construction -UD\;D?$
public: qv@$ZLR
BOOL bTray; M{*Lp6h
BOOL bRegistered; |gU(s
BOOL RegisterHotkey(); `+uhy,
UCHAR cKey; ma((2My'H
UCHAR cMask; B:+6~&,-
void DeleteIcon(); O/<K!;(@?
void AddIcon(); rW0FA
UINT nCount; B4mR9HMh
void SaveBmp(); B~_d^`
CCaptureDlg(CWnd* pParent = NULL); // standard constructor ~SnSEhE
// Dialog Data 7bV{Q355P
//{{AFX_DATA(CCaptureDlg) /;utcc
enum { IDD = IDD_CAPTURE_DIALOG }; a(0*um(
CComboBox m_Key; smry2*g
BOOL m_bControl; iURk=*Z=
BOOL m_bAlt; Ck!VV2U#
BOOL m_bShift; +*hm-lv?
CString m_Path; :Cp'm'omb
CString m_Number; /=gOa\k|p
//}}AFX_DATA 2^l[(N
// ClassWizard generated virtual function overrides G^`1]?
//{{AFX_VIRTUAL(CCaptureDlg) -]t,E,(!
public: ~>+]%FPv
virtual BOOL PreTranslateMessage(MSG* pMsg);
4A2?Uhpy
protected: YE9,KVV;$n
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support dtcIC0:[
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); 6#Q K%[1!>
//}}AFX_VIRTUAL Qu]z)";7
// Implementation 4'LB7}WG
protected: mD/MJt5
HICON m_hIcon; 7Ddaf>
// Generated message map functions FGh]S-A
//{{AFX_MSG(CCaptureDlg) H
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virtual BOOL OnInitDialog(); $O dCL
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); E,f>1meN=
afx_msg void OnPaint(); p^'3Odd|O
afx_msg HCURSOR OnQueryDragIcon(); PgRDKygE
virtual void OnCancel(); &