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:
re fAgS!=q
4xF}rm 一、实现方法
cp&1yB
ge ]Z5E(1 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:
tP89gN^PA| ul{D)zm\D #pragma data_seg("shareddata")
(\%J0kR3[ HHOOK hHook =NULL; //钩子句柄
lXRB"z UINT nHookCount =0; //挂接的程序数目
t9r
R>Y9 static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
]Na; b static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
EY@KWs3"H static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
3$3%W<&^ static int KeyCount =0;
BKK@_B" static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
}_D{|!!!T #pragma data_seg()
qOAhBZ~ y]g5S-G 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
t!59upbN}3 *G[` T%g DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
SC--jhDZ c_ u7O
\ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
E( *S]Z[ cKey,UCHAR cMask)
`)NTJc$): {
]}pAZd BOOL bAdded=FALSE;
| Pqs)Mb] for(int index=0;index<MAX_KEY;index++){
^97[(89G9 if(hCallWnd[index]==0){
CoV@{Pi hCallWnd[index]=hWnd;
Yc5<Y-W HotKey[index]=cKey;
(`<B#D;
HotKeyMask[index]=cMask;
7
6HB@'xY bAdded=TRUE;
X{iidTW`xv KeyCount++;
}Qh%Z) break;
G+WCE* }
lUiO | }
&zPM#Q return bAdded;
u1|v3/Q- }
qv`:o
` //删除热键
&{8[I3#@ BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
^y~oXS( {
I]B9+Z?xo BOOL bRemoved=FALSE;
_k5$.f:Yj< for(int index=0;index<MAX_KEY;index++){
iig&O(, if(hCallWnd[index]==hWnd){
=nCV.Wf if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
mo]>Um'F hCallWnd[index]=NULL;
wKJK!P HotKey[index]=0;
fN
1:'d HotKeyMask[index]=0;
PAiVUGp5[ bRemoved=TRUE;
LNvkC4 KeyCount--;
R(2MI}T break;
V3_qqz}`r }
oTA'=<W?D }
lEpPi@2PK }
c70B return bRemoved;
`Mo%)I<`= }
G~NhBA9 -./Y xG(:O@ DLL中的钩子函数如下:
fVZ_*'v th=45y"C LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
hG3RZN#ejq {
<4;f?eu BOOL bProcessed=FALSE;
`U;V- if(HC_ACTION==nCode)
ik0w\* {
^1ks`1 if((lParam&0xc0000000)==0xc0000000){// 有键松开
6,]2;' switch(wParam)
?#__# {
#|lVQ@= case VK_MENU:
QYWl`Yqf MaskBits&=~ALTBIT;
l> >BeZ break;
K$M,d-
`b case VK_CONTROL:
& aF'IJC MaskBits&=~CTRLBIT;
dTVM
!= break;
jw]IpGTt case VK_SHIFT:
Kw>gg MaskBits&=~SHIFTBIT;
cr{dl\Na break;
uMBb=
default: //judge the key and send message
:Czvwp{z break;
H/ub=,Ej* }
[92bGR{ for(int index=0;index<MAX_KEY;index++){
YGLR%PYv" if(hCallWnd[index]==NULL)
H{;8i7% continue;
y)Lyo'` if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
,]?l(H $x' {
? oGmGKq SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
EtB56FU\ bProcessed=TRUE;
fVBRP[, }
I3?:KVa }
7M9s}b%? }
m$$98N else if((lParam&0xc000ffff)==1){ //有键按下
~K|o@LK switch(wParam)
UmQ'=@^kR {
ZP%Bu2xd case VK_MENU:
NO)vk+ MaskBits|=ALTBIT;
?/ s=E+ break;
L G9#D case VK_CONTROL:
R7By=Y!t MaskBits|=CTRLBIT;
0M>%1* break;
lc0Z fC case VK_SHIFT:
o6;VrpaNi MaskBits|=SHIFTBIT;
GG_A'eX:I break;
z~a]dMs"(P default: //judge the key and send message
U0S}O(Ptr break;
>JhIRf }
0 .p $q for(int index=0;index<MAX_KEY;index++){
Th*mm3D6 if(hCallWnd[index]==NULL)
@KYmkxW continue;
-OP5v8c
f if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
2!Ex55 {
ts0K"xmY\c SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
k)USLA bProcessed=TRUE;
({x<!5XL }
h-h}NCP }
K#{E87G( }
]H<C Rw if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
1')/ BM2 for(int index=0;index<MAX_KEY;index++){
s/'gl if(hCallWnd[index]==NULL)
_'oy
C(:} continue;
<`m.Vbvm" if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
dUJNr_ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
`+/[0B=. //lParam的意义可看MSDN中WM_KEYDOWN部分
h Tn^:%( }
)O%lh
8fI }
Bj7\{x,? }
-nT+!3A8 return CallNextHookEx( hHook, nCode, wParam, lParam );
z*>CP }
cWM|COXL+ I@q>ES!1H 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:
O"9f^y* Z_Ma|V?6 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
+e"}"]n BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
%jM|*^\% L7%'Y}1e. 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:
"Hjw cw <DM%p LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
:<IW' {
|@-WC. if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
?\F ,}e {
JT^E`<nn //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
MgMLfgt"V SaveBmp();
0I?3@Nz6 return FALSE;
.Na>BR\F
}
D&9j$#9Rh …… //其它处理及默认处理
W@$p'IBwm }
X7c*T / =\%>O7c,8Y FVQWz[N 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。
j*:pW;)^ Z#MODf0H@ 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。
1v\-jM" Eq<#pX6 二、编程步骤
M<~F>(wxA 8:xQPd?3 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";
xf]4!zE (kuZS4Af 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
-% fDfjP eu:_V+ 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;
dw4)4_ : }IS=A 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;
L2h+[f KnFbRhu[ 5、 添加代码,编译运行程序。
X*yl%V
sk3;;<H 三、程序代码
X0$_KPn |}|;OG ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
8say"Qz #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
5UM[Iz #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
2$ rq #if _MSC_VER > 1000
N_DgnZ7* #pragma once
|5/[0V-vy #endif // _MSC_VER > 1000
:gVjBF2 #ifndef __AFXWIN_H__
'} kq@ #error include 'stdafx.h' before including this file for PCH
dCK-"#T! #endif
}Tef;8d #include "resource.h" // main symbols
Q}T9NzOH% class CHookApp : public CWinApp
@&W?e?O ~G {
[Bh]\I' public:
R`&ioRWj CHookApp();
%dU}GYL_ // Overrides
s?E: ] // ClassWizard generated virtual function overrides
HlSuhbi'@ //{{AFX_VIRTUAL(CHookApp)
v8IL[g6" public:
>`uS NY"tO virtual BOOL InitInstance();
WI,=?~- virtual int ExitInstance();
B<RONQj_ //}}AFX_VIRTUAL
Uk2q,2 //{{AFX_MSG(CHookApp)
A!kyga6F5 // NOTE - the ClassWizard will add and remove member functions here.
z Y|g#V- // DO NOT EDIT what you see in these blocks of generated code !
Jq#Cn+zW //}}AFX_MSG
NHF?73: DECLARE_MESSAGE_MAP()
8TPm[r] };
1#<E]<='t LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
0)]1)z(P BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
SA1/U BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
uLM_KZ BOOL InitHotkey();
QO.gt*" BOOL UnInit();
sJ/e=1* #endif
+_dYfux V2,WP //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
jTr4A-" #include "stdafx.h"
E3skC%} #include "hook.h"
u&XkbPZ%4c #include <windowsx.h>
ELF`uWGE #ifdef _DEBUG
&>l8S lC?
#define new DEBUG_NEW
? myXG92 #undef THIS_FILE
`Qf
:PX3 static char THIS_FILE[] = __FILE__;
-<!17jy #endif
F^z8+W #define MAX_KEY 100
f](uc(8Z #define CTRLBIT 0x04
Td1ba ^J #define ALTBIT 0x02
5]l7Z35 #define SHIFTBIT 0x01
~+egu89'TU #pragma data_seg("shareddata")
;-GzGDc~0 HHOOK hHook =NULL;
'5/}MMT UINT nHookCount =0;
f<:U"E. static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
l6c%_<P| static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
s;7qNwYO static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
6.s? static int KeyCount =0;
t} i97 ; static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
`L#?eQ{ #pragma data_seg()
Cw&D} HINSTANCE hins;
SM+fG: 4d void VerifyWindow();
n qLAby_ BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
mv*T=N8fC //{{AFX_MSG_MAP(CHookApp)
MlK`sH6 // NOTE - the ClassWizard will add and remove mapping macros here.
Gj19KQ1G // DO NOT EDIT what you see in these blocks of generated code!
,i?!3oLT //}}AFX_MSG_MAP
Z/kaRnG[@t END_MESSAGE_MAP()
$7&l6~sMQ S?7V
"LF CHookApp::CHookApp()
,&&M|,NQ&s {
R:OU>HsdX // TODO: add construction code here,
j'Y"/< // Place all significant initialization in InitInstance
u] U)d$| }
#C1A5JE& :~3{oZGX& CHookApp theApp;
%7>AcTN~ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
(vAv^A*i} {
n R\n\
BOOL bProcessed=FALSE;
3$N %iE6 if(HC_ACTION==nCode)
x`+
l# {
C8qTz".5$ if((lParam&0xc0000000)==0xc0000000){// Key up
x , Vh switch(wParam)
r*N~. tFo {
:-u-hO5*8 case VK_MENU:
Q6.*"` MaskBits&=~ALTBIT;
`[@^m5?b- break;
)y`TymM[F case VK_CONTROL:
BLwfm+ m" MaskBits&=~CTRLBIT;
P
0Efh?oZ break;
|rxKCzjm case VK_SHIFT:
w.D4dv_H MaskBits&=~SHIFTBIT;
I[=Wmxa?r break;
kQwm"Z default: //judge the key and send message
chO'Q+pw break;
y)p$_.YFF }
EItxRHV5 for(int index=0;index<MAX_KEY;index++){
4ypRyO if(hCallWnd[index]==NULL)
eA1k)gjE continue;
E5*-;>2c if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
oE!hF }O {
}0BL0N`_ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
NqT1buU# bProcessed=TRUE;
ApG'jN }
..jq[(;N }
8B *E+f0 }
@1<omsl else if((lParam&0xc000ffff)==1){ //Key down
#.)xm(Ys switch(wParam)
]{|fYt_- {
"u<jbD case VK_MENU:
+MNSZLP] MaskBits|=ALTBIT;
P?q
G break;
V;iL[ case VK_CONTROL:
H}h~~7E MaskBits|=CTRLBIT;
0
OAqA?Z break;
YER:ICQ case VK_SHIFT:
ZI58XS+ MaskBits|=SHIFTBIT;
Ql~#((K break;
_\,rX\ default: //judge the key and send message
^91sl5c8yD break;
"u(S2'DW'( }
wTTTrk for(int index=0;index<MAX_KEY;index++)
ezcS[r {
GW8CaTf~ if(hCallWnd[index]==NULL)
&mdB\Y?^ continue;
R"{l[9j4> if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
`I#`:hj {
lRH0)5` SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
Bq{]Eh0% bProcessed=TRUE;
[4\aYB 9N }
ONfyYM? }
+ouY }
~#4~_d.=L if(!bProcessed){
Gk 6fO for(int index=0;index<MAX_KEY;index++){
Y;g% e3nu if(hCallWnd[index]==NULL)
--A&TV continue;
$P;UoqG<& if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
Man^<T%F SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
Xb0!( (A }
8t=3 }
yKlU6t&`
G }
i7s\CY return CallNextHookEx( hHook, nCode, wParam, lParam );
.R\p[rv& }
8JP6M!F# FJF3B)Va| BOOL InitHotkey()
67?n-NP {
2`E!| X if(hHook!=NULL){
.:[`j3s )Y nHookCount++;
b}}y=zO|$ return TRUE;
v8 }
\OA
L Or else
Ih3$ hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
6%UY1Q.? if(hHook!=NULL)
\j:AR4 nHookCount++;
3fl7~Lw, return (hHook!=NULL);
wonYm27f }
0$QIfT) BOOL UnInit()
Uuz?8/w}# {
? oc+ 1e if(nHookCount>1){
-f 4>MG nHookCount--;
!xymoiArp return TRUE;
pALJl[Cb }
3a9u"8lG BOOL unhooked = UnhookWindowsHookEx(hHook);
l#ZyB| if(unhooked==TRUE){
%p*`h43; nHookCount=0;
iJ4<f->t hHook=NULL;
%Co
b(C&} }
}k| g%HJ return unhooked;
sjb-Me? }
VfRs[3Q 3A d*,>! BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
D$$3fN.iEL {
"f<#.}8 BOOL bAdded=FALSE;
.aJ%am/:% for(int index=0;index<MAX_KEY;index++){
7jT#BWt if(hCallWnd[index]==0){
E[ 0Sst x hCallWnd[index]=hWnd;
_jo$)x+'x HotKey[index]=cKey;
oSmjs HotKeyMask[index]=cMask;
<"A#Eok|4 bAdded=TRUE;
wx./"m.M KeyCount++;
#w;;D7{@m break;
qsTq*G }
"vsjen.K> }
v4D!7t&v" return bAdded;
s.KOBNCFa }
/k)
NP d=F)y~&' BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
I:HV6_/^-G {
$YPQC BOOL bRemoved=FALSE;
#r(a~ for(int index=0;index<MAX_KEY;index++){
c8q G\\t[ if(hCallWnd[index]==hWnd){
F'XlJ M if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
tI'e ctn hCallWnd[index]=NULL;
y}Cj#I+a HotKey[index]=0;
0f{IE@-b HotKeyMask[index]=0;
M&OsRrq bRemoved=TRUE;
pLPd[a KeyCount--;
%xHu,* break;
8TI#7 }
<ip)r; }
y+= \z*9
}
ZRO.bMgZF return bRemoved;
)Yrr%f`\ }
eWw y28t T%w(P ^qk void VerifyWindow()
y/H8+0sEk {
gsi<S6DQ8 for(int i=0;i<MAX_KEY;i++){
A>5S] if(hCallWnd
!=NULL){ eiOi3q
if(!IsWindow(hCallWnd)){ v >NTh
hCallWnd=NULL; kHZKj!!R
HotKey=0; so'eZ"A:
HotKeyMask=0; TZkTz
P[
KeyCount--; v3Eo@,-
} ?nY/, q&
} . rRc
} H&9wSG`
} aK-N}T
-^0KE/
BOOL CHookApp::InitInstance() =qan%=0"h
{ Of!|,2`(
AFX_MANAGE_STATE(AfxGetStaticModuleState()); >" i~ x
hins=AfxGetInstanceHandle(); ~;` fC|)
InitHotkey(); f&f[La
return CWinApp::InitInstance(); wH#Lb@cfZ0
} |O2|`"7
31H|?cg<
int CHookApp::ExitInstance() ]2g5Ka[>w
{ X9SJ~n
VerifyWindow(); aL{EkiR
UnInit(); 5t TLMZ `o
return CWinApp::ExitInstance(); j_hjCQ
} oA[2)BU
- f+CyhR"*
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file dnk1Mu<
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) (]oFB$
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ 3$;J0{&[i
#if _MSC_VER > 1000 N
c9<X
#pragma once Ogn,1nm%
#endif // _MSC_VER > 1000 oK%K+h
/]P%b K6B
class CCaptureDlg : public CDialog 3KbUHSx
{ ~rp.jd 0l
// Construction 'w: tq
public: hl=oiUf[s
BOOL bTray; x`wZtv\
BOOL bRegistered; 9[B<rz
BOOL RegisterHotkey(); ;I[.
UCHAR cKey; !Mm+bWn=mB
UCHAR cMask; l^)o'YS y
void DeleteIcon(); HdDo
void AddIcon(); rAtai}Lx
UINT nCount; w}fqs/)w
void SaveBmp(); "~B~{ _<j
CCaptureDlg(CWnd* pParent = NULL); // standard constructor ^Jc$BMaVg
// Dialog Data &?&'"c{;m
//{{AFX_DATA(CCaptureDlg) HrM)jC<~
enum { IDD = IDD_CAPTURE_DIALOG }; AN50P!FZW
CComboBox m_Key;
zgZi
BOOL m_bControl; PpI+@:p[
BOOL m_bAlt; K#%O3RRs
BOOL m_bShift; qFB9,cUqh
CString m_Path; 8uD8or
CString m_Number; RRK^~JQI.2
//}}AFX_DATA Mp}!+K
// ClassWizard generated virtual function overrides H!Fr("6}
//{{AFX_VIRTUAL(CCaptureDlg) u66TrYS tG
public: 56/.*qa
virtual BOOL PreTranslateMessage(MSG* pMsg); N^)<)?
protected: 7/$nA<qM
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support nI((ki}v
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); $yP'k&b!
//}}AFX_VIRTUAL 9J't[(
u|u
// Implementation qen44;\L
protected: WMt&8W5
HICON m_hIcon; vY8WqG]
// Generated message map functions ^'
edE5
//{{AFX_MSG(CCaptureDlg) /TR"\xQF
virtual BOOL OnInitDialog(); qJe&jLZa
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); i'[n`|c<
afx_msg void OnPaint(); HPv&vdr3
afx_msg HCURSOR OnQueryDragIcon(); [J[ysW})W
virtual void OnCancel(); 9u-M! $
afx_msg void OnAbout(); i!/h3%=
afx_msg void OnBrowse(); I_R5\l}O+D
afx_msg void OnChange(); TZvBcNi
//}}AFX_MSG &z{dr~
DECLARE_MESSAGE_MAP() ~)oWSo5ll
}; b6rzHnl{
#endif HXlr
7M&.UzIY`
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file G~Q*:m
#include "stdafx.h" 8Iqk%n~(
#include "Capture.h" _"FbjQ"
#include "CaptureDlg.h" ==r?
#include <windowsx.h> t6! p\Y}}
#pragma comment(lib,"hook.lib") y&KoL\
#ifdef _DEBUG qkZ5+2m
#define new DEBUG_NEW UvW:#
#undef THIS_FILE `Lb _J
static char THIS_FILE[] = __FILE__; #]N&6ngJ
#endif 59"Nn\}3gE
#define IDM_SHELL WM_USER+1 -Ihn<<uE?
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); ^"6D0!'N
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); dd
@COP?
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; .$}Z:,aB
class CAboutDlg : public CDialog 8H$@Xts
{ kOlI?wc
public: GSUOMy[M-
CAboutDlg(); @ B}c4,
// Dialog Data [|m>vY!
//{{AFX_DATA(CAboutDlg) @hz0:ezg:
enum { IDD = IDD_ABOUTBOX }; _mI:Lr#dT
//}}AFX_DATA Y`[HjS,
// ClassWizard generated virtual function overrides l72ie
//{{AFX_VIRTUAL(CAboutDlg) { 8|Z}?I
protected: _Oaso >
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support ZQJw2LA gO
//}}AFX_VIRTUAL !pFKC)
// Implementation 4IGQ,RTB
protected: |n-a\
//{{AFX_MSG(CAboutDlg) 7!` C TE
//}}AFX_MSG D{Jc+Q$
DECLARE_MESSAGE_MAP() M7cI$=G
}; !@]h@MC$7
$O8EiC!f6
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) h\: tUEg#J
{ /hA}9+/
//{{AFX_DATA_INIT(CAboutDlg) rwV u?W
//}}AFX_DATA_INIT D=pI'5&
} XQ4^:3Yc
v=yI#5
void CAboutDlg::DoDataExchange(CDataExchange* pDX) u0 'pR#
m|
{ .-1{,o/&Q
CDialog::DoDataExchange(pDX); !MG>z\:
//{{AFX_DATA_MAP(CAboutDlg) L{o >D"
//}}AFX_DATA_MAP +'YSpJ
} ZCOuv6V+
*|.yX%"k
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) Ow&'sR'CX
//{{AFX_MSG_MAP(CAboutDlg) H?zCIue3
// No message handlers V=8{CmqT
//}}AFX_MSG_MAP x.4)p6
END_MESSAGE_MAP() MdTd$ 4J3
)*QTxN
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/)
"lnk
: CDialog(CCaptureDlg::IDD, pParent) 0T{Y_IG
{ 9[]"%6
//{{AFX_DATA_INIT(CCaptureDlg) gQzJ2LU(
m_bControl = FALSE; 0_xcrM
m_bAlt = FALSE; bU +eJU_%
m_bShift = FALSE; J;]@?(
m_Path = _T("c:\\"); NB6h/0*v
m_Number = _T("0 picture captured."); #L*@~M^]
nCount=0; 0R!}}*Ee>q
bRegistered=FALSE; gu%'M:Xe
bTray=FALSE; AZ Lt'9UD
//}}AFX_DATA_INIT V/[,1W[B
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 B[m{2XzGH
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); )^'B:ic
} moM&2rgdrQ
_/w-gL{
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) b+#~N>|
{ @^4M~F%
CDialog::DoDataExchange(pDX); }T*xT>p^3
//{{AFX_DATA_MAP(CCaptureDlg) W;@ae,^
DDX_Control(pDX, IDC_KEY, m_Key); R8W44I*R:
DDX_Check(pDX, IDC_CONTROL, m_bControl); l$_+WC*wp
DDX_Check(pDX, IDC_ALT, m_bAlt); l?<z1Acd&
DDX_Check(pDX, IDC_SHIFT, m_bShift); !{ )AV/\D
DDX_Text(pDX, IDC_PATH, m_Path); k^%ec3l
DDX_Text(pDX, IDC_NUMBER, m_Number); ,8 NEnB
//}}AFX_DATA_MAP OU3+SYM
} O?J:+L(
M{kh=b)V
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) 2]3Jb{8FI>
//{{AFX_MSG_MAP(CCaptureDlg) JGNxJ S<]
ON_WM_SYSCOMMAND() pxnUe1=
ON_WM_PAINT() 7;-i_&vws
ON_WM_QUERYDRAGICON() qN,FX#DP
ON_BN_CLICKED(ID_ABOUT, OnAbout) vgp%;-p(
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) CH+&
ON_BN_CLICKED(ID_CHANGE, OnChange) "9T`3cM0
//}}AFX_MSG_MAP U4I` xw'
END_MESSAGE_MAP() A-`J!xj#/
=Bqa<Js
BOOL CCaptureDlg::OnInitDialog() ~acK$.#
{ B91PlM.
CDialog::OnInitDialog(); "}aM*(l+\
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); _!p$47
ASSERT(IDM_ABOUTBOX < 0xF000); eu|q
{p
CMenu* pSysMenu = GetSystemMenu(FALSE); iBW6<2@oZF
if (pSysMenu != NULL) .E8p-R5)V>
{ 1Moh`
CString strAboutMenu; ,%G2>PBt
strAboutMenu.LoadString(IDS_ABOUTBOX); LsZ!':LN
if (!strAboutMenu.IsEmpty()) o[ W3/
{ g-gBg\y{v
pSysMenu->AppendMenu(MF_SEPARATOR); cZT.vA#
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); ]@}BdMlHp
} )P+GklI{4
} yQ&%* ?J
SetIcon(m_hIcon, TRUE); // Set big icon 1b%7FrPkd
SetIcon(m_hIcon, FALSE); // Set small icon :%oj'm44!
m_Key.SetCurSel(0); '*Mb
.s"
RegisterHotkey(); O}!@28|3"
CMenu* pMenu=GetSystemMenu(FALSE); O9&:(2'f
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); % x;!s=U
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); G")EE#W$}
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); y%l#lz=6
return TRUE; // return TRUE unless you set the focus to a control ?bDae%>.d,
} (uc)^lfX
jz:c)C&/
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) ,T[
+omo
{ 8J U~Q
if ((nID & 0xFFF0) == IDM_ABOUTBOX) ?t P/VL
{ ''07Km@x
CAboutDlg dlgAbout; ]7
mSM
dlgAbout.DoModal(); ~,-O
} ^#nWgo7{7
else )#Bfd(F
{ }@6
%yR
CDialog::OnSysCommand(nID, lParam); Lbkn Sy C
} JLn<,Gn)<\
} F;@&uXYgc
*9wHH-#
void CCaptureDlg::OnPaint() U {!{5l:
{ ; O0rt1
if (IsIconic()) -RDs{c`y%N
{ @&yj7-]
CPaintDC dc(this); // device context for painting ebK
wCZwK*
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); agD.J)v\
// Center icon in client rectangle #;]F:TlR
int cxIcon = GetSystemMetrics(SM_CXICON); 0 d]G
int cyIcon = GetSystemMetrics(SM_CYICON); ^ w1R"qE"m
CRect rect; 2` qXDfD`
GetClientRect(&rect); 0Ch._~Q+20
int x = (rect.Width() - cxIcon + 1) / 2; n9-[z2n
int y = (rect.Height() - cyIcon + 1) / 2; `:O.g9
// Draw the icon uNBhVsM6<
dc.DrawIcon(x, y, m_hIcon); dF]8>jBOL
} N)Kr4GC
else @ xr
{ 4 Z)]Cq*3
CDialog::OnPaint(); XnOl*#P
} M3`A&*\;
} %n,bPa>T
1R9/AP
HCURSOR CCaptureDlg::OnQueryDragIcon() 1 to<at-NN
{ ibw;BU
return (HCURSOR) m_hIcon; EBLoRW=8ld
} ;mlIWn
]~ UkD*Ct
void CCaptureDlg::OnCancel() /=} vPey
{ ^4NH.q{
if(bTray) qNL~m'
DeleteIcon(); $c47cJO)W
CDialog::OnCancel(); Sj?'T@
} =Wa\yBj_;m
Zpmy)W]1
void CCaptureDlg::OnAbout() 7SCI_8`
{ }0G Ab2
CAboutDlg dlg; 2}t wt
dlg.DoModal(); T2{+fRvN
} KX`,7-
e
j9G[
void CCaptureDlg::OnBrowse() wah`
{ "6i9 f$N
CString str; 4SYN$?.Mp
BROWSEINFO bi; b}:Z(L,\
char name[MAX_PATH]; (L1`]cp
ZeroMemory(&bi,sizeof(BROWSEINFO)); W#!\.m`5
bi.hwndOwner=GetSafeHwnd(); \2jY)UrQs
bi.pszDisplayName=name; kXWx )v
bi.lpszTitle="Select folder"; $u :=lA:N
bi.ulFlags=BIF_RETURNONLYFSDIRS; Gf?KpU
LPITEMIDLIST idl=SHBrowseForFolder(&bi); z0sB*5VH
if(idl==NULL) jYkx]J%S
return; %#,BvQz~
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); &%lhov
str.ReleaseBuffer(); 0CROq}
m_Path=str; ;
F=_ozWV*
if(str.GetAt(str.GetLength()-1)!='\\') fVM%.`
m_Path+="\\"; d\v _!7
UpdateData(FALSE); r!S iR(
} o2~x'*A0I
Gm.hBNgp
void CCaptureDlg::SaveBmp() !Xm: $KH
{ 7}Sw(g)o7
CDC dc; Q$%@.@
dc.CreateDC("DISPLAY",NULL,NULL,NULL); c.fj[U|j
CBitmap bm; "{k3~epYaN
int Width=GetSystemMetrics(SM_CXSCREEN); 9M<? *8)
int Height=GetSystemMetrics(SM_CYSCREEN); AZa3!e/1
bm.CreateCompatibleBitmap(&dc,Width,Height); kBzzi^cl
CDC tdc; gT.-Cf{
tdc.CreateCompatibleDC(&dc); P(`IY+
CBitmap*pOld=tdc.SelectObject(&bm); IQDWH/c
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); oZ}e
w!V
tdc.SelectObject(pOld); g:Dg?_o
BITMAP btm; X'c5s~9
bm.GetBitmap(&btm); luMNi^FQ
DWORD size=btm.bmWidthBytes*btm.bmHeight; CbZ1<r" /
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); )~`zjVx_
BITMAPINFOHEADER bih; jnTl%aQYc
bih.biBitCount=btm.bmBitsPixel; n>HN py
bih.biClrImportant=0; Vr*t~M>
bih.biClrUsed=0; 1}6pq2
bih.biCompression=0; -cKR15
bih.biHeight=btm.bmHeight; vzw\f
bih.biPlanes=1; ?vVkZsU
bih.biSize=sizeof(BITMAPINFOHEADER); ,"'agg:St
bih.biSizeImage=size; 6]Jv3Re'(I
bih.biWidth=btm.bmWidth; "#7i-?=
bih.biXPelsPerMeter=0; ;Y"J j
bih.biYPelsPerMeter=0; Ol? 2Qy.2)
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); .#n?^73
static int filecount=0; ?]t8$^m,;
CString name; V/Q6v
YX
name.Format("pict%04d.bmp",filecount++); `G'V9Xs(
name=m_Path+name; P}5aN_v\
BITMAPFILEHEADER bfh; *%O1d.,
bfh.bfReserved1=bfh.bfReserved2=0; _5zR!|\^
bfh.bfType=((WORD)('M'<< 8)|'B'); -K
jCPc
bfh.bfSize=54+size; 9hv\%_>o
bfh.bfOffBits=54; g@QpqrT
CFile bf; c|7Pnx%gT
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ R8 m/Nt2
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); 7-5q\[ZK
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); qb_V
,b9
bf.WriteHuge(lpData,size); r#XDgZtI
bf.Close(); & zG=
nCount++; ;[xDc>&("Q
} )"1D-Bc\Q
GlobalFreePtr(lpData);
<ygO?m{
if(nCount==1) "CaVT7L
m_Number.Format("%d picture captured.",nCount); Cdv TC`~,
else *f(}@U
m_Number.Format("%d pictures captured.",nCount); aQ)9<LsI
UpdateData(FALSE); `drvu?F
} vmoqsdZ/
"%Jx,L\f{
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) %S^`/Snv"
{ z+4R[+[
if(pMsg -> message == WM_KEYDOWN) $*PyzLS
{ =y':VIVJC
if(pMsg -> wParam == VK_ESCAPE) 68y.yX[
return TRUE; =3"Nn4Z
if(pMsg -> wParam == VK_RETURN) ;
etH)
return TRUE; O^f@ g l
} '~@WJKk
return CDialog::PreTranslateMessage(pMsg); 5}m2D='
} 8]Pf:_e,+
u(BYRB
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) ~7ArH9k.
{ xH=&={
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ B4.hJZ5
SaveBmp(); d1,azM
return FALSE; a%AU9?/q#
} C{c (K!
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ :70oO}0m.
CMenu pop; u4S3NLG)
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); dlWw=^
CMenu*pMenu=pop.GetSubMenu(0); p?}Rolk7
pMenu->SetDefaultItem(ID_EXITICON); j#*K[
CPoint pt; +?c&Gazi
GetCursorPos(&pt); 'g^]ZTxb
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); T|E ;U
if(id==ID_EXITICON) EGs z{c[8@
DeleteIcon(); }{lOsZA
else if(id==ID_EXIT) B82A:t)
OnCancel(); FSM~Rl
return FALSE; ,^+3AT
} g~cWBr%>
LRESULT res= CDialog::WindowProc(message, wParam, lParam); %|;^[^7+}t
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) WaHTzIa[
AddIcon(); mb&b