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:
Uhh
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^9"KTZc-* 一、实现方法
i4Z4xTn ~hN~>0O 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:
83]PA<R 'bW5Fr>W #pragma data_seg("shareddata")
]]iO- } HHOOK hHook =NULL; //钩子句柄
v:ER4 UINT nHookCount =0; //挂接的程序数目
;Fl<v@9 static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
cep$_Ja static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
~waNPjPRG static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
M<8ML!N0;t static int KeyCount =0;
)JgC$ < static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
`U`#I,Ln[ #pragma data_seg()
c5i%(!> ,axDMMDI 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。
'Am- vhpm rjojG59U> 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:
'u[%}S38 iL?iz?+.%@ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
(fk5' cKey,UCHAR cMask)
"-i#BjZl/ {
yFIIX=NC BOOL bAdded=FALSE;
/Ic[N& for(int index=0;index<MAX_KEY;index++){
OHp5z?
z if(hCallWnd[index]==0){
R"6;NPeo hCallWnd[index]=hWnd;
2z2` HotKey[index]=cKey;
|w)5;uQ&\ HotKeyMask[index]=cMask;
2wh#$zGy bAdded=TRUE;
X:q_c =X KeyCount++;
o<VP'F{p break;
`6w#8} }
P2k7M(I_& }
CJw$j`k return bAdded;
L`K;IV%; }
VQ
|^
//删除热键
p!"(s/= BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
9R]](g# {
$iMC/Kym BOOL bRemoved=FALSE;
ku.A|+Tn for(int index=0;index<MAX_KEY;index++){
,ECAan/@ if(hCallWnd[index]==hWnd){
.gD km^ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
Enj_tJs hCallWnd[index]=NULL;
.|]IwyD
& HotKey[index]=0;
$B _Nc*_e HotKeyMask[index]=0;
SPwPCI1?
bRemoved=TRUE;
O*7i }\{ KeyCount--;
(r F?If break;
d/j@_3' }
5:gj&jt;)7 }
QUP|FIpZ }
_PB@kH# return bRemoved;
o bGWxI%a }
!$kR ;Q"/ jXcNAl B?(4f2yE DLL中的钩子函数如下:
oX|?:MS: ToU.mM?f^ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
#8?^C]*{0 {
};SV!'9s?~ BOOL bProcessed=FALSE;
YOw?'+8 if(HC_ACTION==nCode)
:EB,{|m {
"3y} F if((lParam&0xc0000000)==0xc0000000){// 有键松开
k,_i#9X switch(wParam)
`jW4H$D {
do'ORcZ case VK_MENU:
x;U|3{Io MaskBits&=~ALTBIT;
j+>Q# &h9 break;
LZV}U* case VK_CONTROL:
YBylyVZ MaskBits&=~CTRLBIT;
&va*IR break;
YX;nMyD?~ case VK_SHIFT:
FzhT$7Gw MaskBits&=~SHIFTBIT;
iG-N break;
BED@?:U# h default: //judge the key and send message
?aJ6ug break;
xwLy|& }
IK?]PmN4} for(int index=0;index<MAX_KEY;index++){
5c;En6W if(hCallWnd[index]==NULL)
AN10U;p/O continue;
Mo|yv[(K, if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
jsWX 6(= {
YN^jm SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
oFyeH )! bProcessed=TRUE;
P`2&*2, }
>EBC 2WJ }
K -E`y }
DB8s else if((lParam&0xc000ffff)==1){ //有键按下
ADBpX> switch(wParam)
41'EA\V {
,9vJtP+T+! case VK_MENU:
)*HjRTF6G MaskBits|=ALTBIT;
3ZN>9` break;
hho%~^bn( case VK_CONTROL:
jZ#UUnR% MaskBits|=CTRLBIT;
(6-y+LG break;
Lh!z>IWjOG case VK_SHIFT:
5mIXyg 0: MaskBits|=SHIFTBIT;
sY^lQN break;
Bm<^rhJ9 default: //judge the key and send message
9l l|JeNi break;
J0qXtr%h\ }
V/&o]b for(int index=0;index<MAX_KEY;index++){
/s8/q2: if(hCallWnd[index]==NULL)
MCd F!{ continue;
2fP~;\AP if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
9fCO7AE0# {
<?4cWp|i SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
-pX|U~a[ bProcessed=TRUE;
j J-d/"( }
V0T<e H< }
oT!/J }
:p$EiR if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
D"`[6EN[ for(int index=0;index<MAX_KEY;index++){
NxB+? if(hCallWnd[index]==NULL)
vnVZJ}]w\ continue;
FK3Whe{KP{ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
\bRy(Z) SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
2YluJ:LN //lParam的意义可看MSDN中WM_KEYDOWN部分
ex0oAt^ }
&q L<C }
L6 kZ2-6 }
X\'E4 return CallNextHookEx( hHook, nCode, wParam, lParam );
z.j4tc9F/5 }
j88=f#< 3B -NYJa 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:
d/4ubf+$k i\vpGlx BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
Z?C4a} BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
w Oj88J) >\&= [C 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
NkoofhZ W/a,.M LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
7y>(H<^> {
pMDH if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
{70Ou}* {
G V=OKf# //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
Md?acWE*L SaveBmp();
c+wuC, return FALSE;
WN1Jm:5YV }
>F~ITk5`Oo …… //其它处理及默认处理
kMqD
iJ }
H8sK}1. ,b4~!V MyqiBGTb 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
XUf7yD mDlCt_h 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
W0U`Kt&~a /t$*W\PL@ 二、编程步骤
e6o/q)9# hi0XVC95 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";
B#Qpd7E+* r:.6"VQu} 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
U(P:J e Z$1.^H.Db 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
)ph30B C~{xL>I 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
K,G,di R~!\-6%_ 5、 添加代码,编译运行程序。
/ Z1Wy-Z '%);%y@v 三、程序代码
dA|Lufy# !2#\| NJk ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
Q|Nzbmwh #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
4p?+LdL #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
,T/GW,? #if _MSC_VER > 1000
&+,:u*% #pragma once
P:>'
#endif // _MSC_VER > 1000
(y 3~[ #ifndef __AFXWIN_H__
#g F2(iK6 #error include 'stdafx.h' before including this file for PCH
^uM_b #endif
BB0g}6M #include "resource.h" // main symbols
/G{&[X<4U class CHookApp : public CWinApp
8 NxUx+] {
4bPqmEE public:
Kq8(d`g} CHookApp();
sC!1B6: // Overrides
>,kL p|gA // ClassWizard generated virtual function overrides
bG"6pU //{{AFX_VIRTUAL(CHookApp)
dZ.}j&ZH' public:
Ko4)0& virtual BOOL InitInstance();
{qY3L8b virtual int ExitInstance();
?<Z)*CF) //}}AFX_VIRTUAL
A\Lr<{Jh //{{AFX_MSG(CHookApp)
H]VsOr // NOTE - the ClassWizard will add and remove member functions here.
f 5mY;z" // DO NOT EDIT what you see in these blocks of generated code !
-e &$,R>; //}}AFX_MSG
@;g`+:= DECLARE_MESSAGE_MAP()
sE^ns\&QP= };
=.VepX|?D LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
Th.3j's BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
yB
1I53E BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
!?S5IGLOj BOOL InitHotkey();
'_k >*trV BOOL UnInit();
ful]OLV+ #endif
hcd!A5 <zfO1~^ //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
=VCi8jDkP #include "stdafx.h"
/]pX8
d #include "hook.h"
_RN/7\ #include <windowsx.h>
) )fDOJ #ifdef _DEBUG
dko [ #define new DEBUG_NEW
ZYrKG+fkl #undef THIS_FILE
XCW+ pUX static char THIS_FILE[] = __FILE__;
( P #endif
Gs^(YGtU #define MAX_KEY 100
6{cybD`Ef& #define CTRLBIT 0x04
Bjurmo #define ALTBIT 0x02
X@i+&Nv"< #define SHIFTBIT 0x01
rat=)n)"t #pragma data_seg("shareddata")
'Na|#tPYI HHOOK hHook =NULL;
:yd=No@ UINT nHookCount =0;
s.<olxXRW static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
I/u'bDq static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
#Y/97_2 xa static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
I[tAT[ < static int KeyCount =0;
qPp1:a" static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
Tbe_xs^ #pragma data_seg()
7yo|ie@S HINSTANCE hins;
1-4 void VerifyWindow();
Q,OkO?uY BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
ztRWIkI
q //{{AFX_MSG_MAP(CHookApp)
rd|@*^k // NOTE - the ClassWizard will add and remove mapping macros here.
bv .EM // DO NOT EDIT what you see in these blocks of generated code!
ON:LPf>"- //}}AFX_MSG_MAP
8yY"x
[' END_MESSAGE_MAP()
;:v]NZtc Q,[rrG;?@ CHookApp::CHookApp()
}~7H2d);- {
R
tXF // TODO: add construction code here,
.q
AQPL // Place all significant initialization in InitInstance
~,(0h:8 }
113Z@F SIKk|I) CHookApp theApp;
\DG(
8l LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
\9dz&H {
trID#DT~ BOOL bProcessed=FALSE;
% <8K^|w if(HC_ACTION==nCode)
^hQ:A4@q {
s4\SX, if((lParam&0xc0000000)==0xc0000000){// Key up
X7'h@>R switch(wParam)
qkIA,Kgy {
v 1`bDS?*Q case VK_MENU:
S/#) :,YS MaskBits&=~ALTBIT;
MAsWds`bpB break;
u.ULS3`C/X case VK_CONTROL:
f]@[4<N y MaskBits&=~CTRLBIT;
!Ei Ze.K break;
AlPL;^Y_l case VK_SHIFT:
@\x,;!N@ MaskBits&=~SHIFTBIT;
&6|6J1c8 break;
\#h})` default: //judge the key and send message
`DU'wB
break;
Bbn832iMUY }
#o(?g-3 for(int index=0;index<MAX_KEY;index++){
*!-}lc^4 if(hCallWnd[index]==NULL)
h$#4ebp continue;
(.jO:#eE% if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
?^e*UJNM {
e
B9m4 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
$i1>?pb3 bProcessed=TRUE;
6/p]jN }
&F@tmM~ }
'=@-aVp }
_*OaiEL+: else if((lParam&0xc000ffff)==1){ //Key down
*@b~f&Lx6 switch(wParam)
hW*^1%1 {
bTA14&&q case VK_MENU:
$6Q2)^LJ MaskBits|=ALTBIT;
7LyV`6{70 break;
cOj +}Hz58 case VK_CONTROL:
V^/h;/!^ MaskBits|=CTRLBIT;
0C4*F break;
IdN%f]=/ case VK_SHIFT:
":(Cpf0 MaskBits|=SHIFTBIT;
UcKWa>:Fi break;
rm7*l<v6 default: //judge the key and send message
'tq\<y break;
M8^ziZY }
S[\cT:{OE for(int index=0;index<MAX_KEY;index++)
8ESkG {
_BeX7 if(hCallWnd[index]==NULL)
gn;nS{A continue;
,=XS%g}l4 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
(
SC7m/ {
a8lo!e9q SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
'xu7AKpU) bProcessed=TRUE;
ul5:: }
A_X^k|)T }
IArpCF/"8 }
O(c4iWm if(!bProcessed){
{<Xo,U7y for(int index=0;index<MAX_KEY;index++){
{kY`X[fvZ if(hCallWnd[index]==NULL)
z~A(IQO continue;
1*eWvYo1 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
A-@-?AR SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
6832N3= }
u:{.
Hn` }
t`&s }
.n^O)|Z return CallNextHookEx( hHook, nCode, wParam, lParam );
`gA5P % }
/ab K/8ZQ
7\Yq]:;O BOOL InitHotkey()
G%W03c {
v~W6yjp if(hHook!=NULL){
zL[U; nHookCount++;
@N:3`[oB return TRUE;
m8j#{[NE }
:` !mCW`Q- else
9Rt(G_' hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
nu1w: if(hHook!=NULL)
H~1?MAX nHookCount++;
./5MsHfbxt return (hHook!=NULL);
16d{IGMz }
JqH.QnKcv BOOL UnInit()
u0$5Fd&X {
]>]H:NEq if(nHookCount>1){
;Vtpq3 nHookCount--;
`(w kqa return TRUE;
Vv*5{_ }
rnt$BB[g BOOL unhooked = UnhookWindowsHookEx(hHook);
=,}!Ns{k if(unhooked==TRUE){
2[bR6 T89 nHookCount=0;
hF{mm(qyv hHook=NULL;
L52z }
,"HpV return unhooked;
n
B|C-.F }
ROI$;B( jak|LOp BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
h^3Vd K, {
E'6z7m. BOOL bAdded=FALSE;
&<;nl^ for(int index=0;index<MAX_KEY;index++){
W0C$*oe!_i if(hCallWnd[index]==0){
fe]T9EDA hCallWnd[index]=hWnd;
r%?}5"* HotKey[index]=cKey;
jl?y} HotKeyMask[index]=cMask;
nqw*oLFQ bAdded=TRUE;
vA $BBXX KeyCount++;
D\i8rqU/l break;
jind!@}! }
,hcBiL/ }
?)ZLxLV:: return bAdded;
,\">o vV33 }
kv`3Y0R-" R|^t~h- BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
BtDgv.;GH {
iOA3x 8J BOOL bRemoved=FALSE;
?eZ"UGZg' for(int index=0;index<MAX_KEY;index++){
Z{>Y':\?< if(hCallWnd[index]==hWnd){
z8MpE if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
-ZMl[;OM hCallWnd[index]=NULL;
@x\gk5 HotKey[index]=0;
(4/`@;[ HotKeyMask[index]=0;
P24 bRemoved=TRUE;
[+5SEr} KeyCount--;
l'X?S(fiV break;
[O =)FiY- }
yyYbB ]D }
s</ktPtu }
iS^^Z ZyR return bRemoved;
(5\d[||9g }
/-} p7AM /:];2P6#X void VerifyWindow()
q.Aw!]:! {
Nl>b'G96 for(int i=0;i<MAX_KEY;i++){
7B> cmi if(hCallWnd
!=NULL){ |x~ei_x7.p
if(!IsWindow(hCallWnd)){ LB 5EGw
hCallWnd=NULL; UmHb-uk ;
HotKey=0; Sr-^faL
HotKeyMask=0; doUqUak
KeyCount--; y#SD-#I-
} u K &_IE}
} P)
0=@{(
} (:hmp"S
} KLM^O$=
I2!&=" 7@
BOOL CHookApp::InitInstance() pPqbD}p
{ hB1 iSm
AFX_MANAGE_STATE(AfxGetStaticModuleState()); A-NC,3
hins=AfxGetInstanceHandle(); \y+F!;IxL
InitHotkey(); BB}iBf I'
return CWinApp::InitInstance(); s#CEhb
} ;
yC`5
ZtZV:re=
int CHookApp::ExitInstance() a[OLS+zf!P
{ K0bmU(Xxp
VerifyWindow(); Kwmo)|7uPU
UnInit(); :1Yd;%>92
return CWinApp::ExitInstance(); jfhDi6N
} jF2GHyB
#pxet
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file #hiDZ>nr
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) %y~]3XWik
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ h.0&)t\q"
#if _MSC_VER > 1000 0hr)tYW,G
#pragma once LGue=Hkp
#endif // _MSC_VER > 1000 g{.@|;d<p
<\Dl#DH
class CCaptureDlg : public CDialog 8c'-eT"
{ U\plt%2m>
// Construction s.Ic3ITd,
public: 15yV4wHr
BOOL bTray; |0Ug~jKU
BOOL bRegistered; 7o%|R2mL}
BOOL RegisterHotkey(); _z6u^#Si
UCHAR cKey; JN|#
UCHAR cMask; <{~UKi
void DeleteIcon(); ;&:Et
void AddIcon(); n/|`Dz.
UINT nCount; =Qq^=3@h
void SaveBmp(); N`:bvr
CCaptureDlg(CWnd* pParent = NULL); // standard constructor `'t;BXedz/
// Dialog Data <OFqUp*l
//{{AFX_DATA(CCaptureDlg) JHOBg{Wg
enum { IDD = IDD_CAPTURE_DIALOG }; 2:0Y'\nn
CComboBox m_Key; G(,~{N||
BOOL m_bControl; lAt1Mq}?P
BOOL m_bAlt; Ny<G2!W
BOOL m_bShift; `Y$5g~3.
CString m_Path; $6+P&"8
CString m_Number; = nN*9HRD
//}}AFX_DATA |xC
TX
// ClassWizard generated virtual function overrides X64I~*
//{{AFX_VIRTUAL(CCaptureDlg) (9lx5
public: f*@:{2I.v
virtual BOOL PreTranslateMessage(MSG* pMsg); Z1}zf(JU
protected: <W{0@?y
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support "+Yn;9
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); YR`rg;n#
//}}AFX_VIRTUAL F#R\Ot,hv
// Implementation
K8we*
protected: soCHwiE
HICON m_hIcon; dQ"W~ig
// Generated message map functions gx.]4v
//{{AFX_MSG(CCaptureDlg) lt"*y.%@b
virtual BOOL OnInitDialog(); [l{eJ/W
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); r\D8_S_
afx_msg void OnPaint(); :cz]8~i\
afx_msg HCURSOR OnQueryDragIcon(); c3BL2>c
virtual void OnCancel(); NGzqiu"J
afx_msg void OnAbout(); O/~^}8TLL
afx_msg void OnBrowse(); .OUE'5e p
afx_msg void OnChange(); )eyxAg
//}}AFX_MSG >gl <$LQ?X
DECLARE_MESSAGE_MAP() t9l7
% +y
}; 6XU5T5+P^
#endif u{d`
(pg9cM]NA
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file )o,0aGo>Of
#include "stdafx.h" @=1``z#
#include "Capture.h" }Elce}
#include "CaptureDlg.h" 1#uw^{n
#include <windowsx.h> eF\C?4
#pragma comment(lib,"hook.lib") J4X35H=Z
#ifdef _DEBUG jzw?V9Ijb
#define new DEBUG_NEW U /Fomu
#undef THIS_FILE VG7#6)sQoK
static char THIS_FILE[] = __FILE__; q,Q|Uvpk
#endif AXI:h"so
#define IDM_SHELL WM_USER+1 J8'zvH&I
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); m@?e
<$
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); Z}f_\d'
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; S!cXc/H-R
class CAboutDlg : public CDialog 1i2O]e!
{ jgIzB1H
public: a06q-3zw
CAboutDlg(); %tLq&tyeY
// Dialog Data Jp0.h8i
//{{AFX_DATA(CAboutDlg) jXR+>=_
enum { IDD = IDD_ABOUTBOX }; <rF
//}}AFX_DATA (iP,YKG1?
// ClassWizard generated virtual function overrides `7ZJB$7D|*
//{{AFX_VIRTUAL(CAboutDlg) CxV%/ChJ#
protected: DVH><3FF
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support +.cv,1Vx
//}}AFX_VIRTUAL |SleSgS<#
// Implementation i|GC 'XD@
protected: ARo5 Ss{
//{{AFX_MSG(CAboutDlg) J_$~OEC~
//}}AFX_MSG bS<p dOX_
DECLARE_MESSAGE_MAP() 0rUf'S
?K
}; @9a=D<'>
s,x]zG"
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) eW%jDsC
{ RdHR[Usm
//{{AFX_DATA_INIT(CAboutDlg) Tkf !Y?
//}}AFX_DATA_INIT yL-L2
} X;tk\Ixd
E
.5xzY
void CAboutDlg::DoDataExchange(CDataExchange* pDX) }fZBP]<I(
{ VCO/s9AL
CDialog::DoDataExchange(pDX); - %|I
//{{AFX_DATA_MAP(CAboutDlg) <i-RF-*S
//}}AFX_DATA_MAP l<?wB|1'
} NBX/V^
<Z;BB)I&C`
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 70eN]OY
//{{AFX_MSG_MAP(CAboutDlg) :Ib\v88WIv
// No message handlers %|>i2
//}}AFX_MSG_MAP `314.a6S
END_MESSAGE_MAP() ,~#hHhR_
J)o%83//
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) sP%.o7&n
: CDialog(CCaptureDlg::IDD, pParent) >rubMGb
{ +l(}5(wc
//{{AFX_DATA_INIT(CCaptureDlg) 3OlY Ml
m_bControl = FALSE; I5]zOKlVR
m_bAlt = FALSE; w0iEx1i
m_bShift = FALSE; rB]/N,R
m_Path = _T("c:\\"); u.6%n.g
m_Number = _T("0 picture captured."); {'%=tJ[YX
nCount=0; TF>F7v(,45
bRegistered=FALSE; da@
.J9
bTray=FALSE; v#xF;@G
//}}AFX_DATA_INIT om6R/K
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 Wt=[R 4=
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); 2_Z60]
} RU=%yk-gM
&3V4~L1aEg
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) FBsw\P5w
{ `u-Y 5mY
CDialog::DoDataExchange(pDX); &7LfNN`
//{{AFX_DATA_MAP(CCaptureDlg) gN%R-e0
DDX_Control(pDX, IDC_KEY, m_Key); mf#oa~_
DDX_Check(pDX, IDC_CONTROL, m_bControl); WyP1"e^9
DDX_Check(pDX, IDC_ALT, m_bAlt); ZUycJ-[
DDX_Check(pDX, IDC_SHIFT, m_bShift); [aC(Ga}
DDX_Text(pDX, IDC_PATH, m_Path); }- Sr@bE
DDX_Text(pDX, IDC_NUMBER, m_Number); _[W=1bGJ
//}}AFX_DATA_MAP :nI.Qa'"H
} )<d8y Lb
S5JnJkNn
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) K9R[
oB]b
//{{AFX_MSG_MAP(CCaptureDlg) @Klj!2cv$
ON_WM_SYSCOMMAND() mwxJ#
ON_WM_PAINT() 5|Qr"c$p
ON_WM_QUERYDRAGICON() xlAaIo)T
ON_BN_CLICKED(ID_ABOUT, OnAbout) `F#KXk
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) 6c :$[owC
ON_BN_CLICKED(ID_CHANGE, OnChange) ?9:\1)]
//}}AFX_MSG_MAP ?jbam!A
END_MESSAGE_MAP() W2RS G~|
kVY@q&p
BOOL CCaptureDlg::OnInitDialog() C;` fOCz^
{ jolCR-FDu
CDialog::OnInitDialog(); <Vim\
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); N@}U ;x}
ASSERT(IDM_ABOUTBOX < 0xF000); >:=TS"}yS}
CMenu* pSysMenu = GetSystemMenu(FALSE); 2r,fF<WQ
if (pSysMenu != NULL) 15COwc*k
{ ?4_;9MkN
CString strAboutMenu; _[x(p6Xp
strAboutMenu.LoadString(IDS_ABOUTBOX); 8'y|cF%U
if (!strAboutMenu.IsEmpty()) 8Bhng;jX
{ u8*0r{kOH
pSysMenu->AppendMenu(MF_SEPARATOR); mN{$z<r
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); dn Xc- <
} +] #>6/2q
} V4 7Fp
SetIcon(m_hIcon, TRUE); // Set big icon @azS)4L
SetIcon(m_hIcon, FALSE); // Set small icon ]zO]*d=m
m_Key.SetCurSel(0); g!$
"CX%8
RegisterHotkey(); bpkn[K"(
CMenu* pMenu=GetSystemMenu(FALSE); 99 ["I:
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); ;$Y?j8g
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); 04s N4C
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); f5N~K>
return TRUE; // return TRUE unless you set the focus to a control f: Rh9
} T*oH tpFj#
aD4ln]sFxG
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) #r1x0s40D
{ gU`QW_{
if ((nID & 0xFFF0) == IDM_ABOUTBOX) 9} vWTt0
{ q9OIw1xQr*
CAboutDlg dlgAbout; ]n{2cPx5d
dlgAbout.DoModal(); xsfq[}eH<
} .D :v0Zm}m
else tQ/U'Ap&
{ er53?z7zP.
CDialog::OnSysCommand(nID, lParam); t/3veDh@
} Y !`H_Qo
} ]C!u~A\jq
1yhx)m;f
void CCaptureDlg::OnPaint() !MbRI
{ $z<CkMP!U7
if (IsIconic()) og>f1NwS[
{ bHp|>g
CPaintDC dc(this); // device context for painting _2|,j\f;L
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); #8PjYB
// Center icon in client rectangle !o`al` q'
int cxIcon = GetSystemMetrics(SM_CXICON); vOqT Ld
int cyIcon = GetSystemMetrics(SM_CYICON); j1BYSfX'
CRect rect; ?}W:DGudZ
GetClientRect(&rect); eA!aUu
int x = (rect.Width() - cxIcon + 1) / 2; w:qwU\U>x
int y = (rect.Height() - cyIcon + 1) / 2; .N%$I6w
// Draw the icon |Oo
WGVc
dc.DrawIcon(x, y, m_hIcon); f~]5A%=cZ
} WYq, i}S
else \UXQy{Ex
{ PgVM>_nHk
CDialog::OnPaint(); LE7o[<>
} MFC= oKD
} (F
@IUbnl
8}U/fQ~
HCURSOR CCaptureDlg::OnQueryDragIcon() ^0r@",
{ +Y.As
return (HCURSOR) m_hIcon; ;G w5gK^
} YXmLd'F^3
f`?|A
void CCaptureDlg::OnCancel() U8moVj8w1
{ 5f1yszd
if(bTray) zP5H TEz
DeleteIcon(); rIu>JyC"p
CDialog::OnCancel(); \\[P^ tsF
} Ar|_UV>Zf
Wjj'yqBO^
void CCaptureDlg::OnAbout() }b1P!xb!A
{ $Q?UyEi
CAboutDlg dlg; le*pd+> j
dlg.DoModal(); j3$KYf`T}
} f1Rm9``
RNm/&F1C$
void CCaptureDlg::OnBrowse() _Wgg=A"G
{ jML}{>Gy8S
CString str; ?A]:`l_"
BROWSEINFO bi; 6CCM7
char name[MAX_PATH]; I+}h+[W
ZeroMemory(&bi,sizeof(BROWSEINFO)); V;>p@uE,P
bi.hwndOwner=GetSafeHwnd(); `LNRl'Zm
bi.pszDisplayName=name; ]E,
bi.lpszTitle="Select folder"; =s;7T!7!
bi.ulFlags=BIF_RETURNONLYFSDIRS; $[IuEdc/
LPITEMIDLIST idl=SHBrowseForFolder(&bi); _v_ak4m>
if(idl==NULL) .rwZ`MP
return; ,UY],;ib
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); ^G5_d"Gr
str.ReleaseBuffer(); [~$9n_O94
m_Path=str; 42Z2Mjtk
if(str.GetAt(str.GetLength()-1)!='\\') J.~$^-&!
m_Path+="\\"; N8:vn0ww
UpdateData(FALSE); Cfa?LgSz
} KpSHf9!&[
ni9/7
void CCaptureDlg::SaveBmp() U*)pUJ{&t
{ N'TL &]
CDC dc; e5MX5 T^
dc.CreateDC("DISPLAY",NULL,NULL,NULL); q4Q1Ib-<2
CBitmap bm; {gzL}KL
int Width=GetSystemMetrics(SM_CXSCREEN); EWbFy"=
int Height=GetSystemMetrics(SM_CYSCREEN); E{h
bm.CreateCompatibleBitmap(&dc,Width,Height); e;,D!
CDC tdc; 0&Zm3(}
tdc.CreateCompatibleDC(&dc); o4tQ9X=}
CBitmap*pOld=tdc.SelectObject(&bm); eqYa`h@g^
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); \
VJ3
tdc.SelectObject(pOld); )~rN{W<s`H
BITMAP btm; GBN^ *I
bm.GetBitmap(&btm); ~fEgrF d
DWORD size=btm.bmWidthBytes*btm.bmHeight; c}lUP(Ss
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); 4h?[NOA"
BITMAPINFOHEADER bih; 9=Y-w s
bih.biBitCount=btm.bmBitsPixel; EZao\,t
bih.biClrImportant=0; .#P'NF(5#
bih.biClrUsed=0; *uNa(yd
bih.biCompression=0; S$ dFz
bih.biHeight=btm.bmHeight; vTN$SgzfCU
bih.biPlanes=1; 8IbHDDS
bih.biSize=sizeof(BITMAPINFOHEADER); gTm[ <Y
bih.biSizeImage=size; M~=9ym
bih.biWidth=btm.bmWidth; :4/RB%)"
bih.biXPelsPerMeter=0; zaa>]~g .
bih.biYPelsPerMeter=0; Ee d2`~
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); EC|t4u3
static int filecount=0; Wfz&:J#
CString name; e%SQ~n=H 9
name.Format("pict%04d.bmp",filecount++); Q%
)fuI
name=m_Path+name; dFK/
BITMAPFILEHEADER bfh; RoT}L#!!
bfh.bfReserved1=bfh.bfReserved2=0; N
=)9O
bfh.bfType=((WORD)('M'<< 8)|'B'); Fep#Pw1
bfh.bfSize=54+size; +,f|Y6L<