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:
{?!0<0
mY)Y47iL 一、实现方法
bu2@~ UY ^dFbJ 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:
_,"?R]MO %2S+G?$M? #pragma data_seg("shareddata")
}L!%^siG_ HHOOK hHook =NULL; //钩子句柄
vp[;rDsIJ$ UINT nHookCount =0; //挂接的程序数目
(O[:-Aqm static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
`rwzCwA1 static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
%(P\"hE' static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
'\,|B
x8Q static int KeyCount =0;
(t.OqgY static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
qe/|u3I<lF #pragma data_seg()
i[+cNJ|$B0 B#A
.-nb 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
#"T< mM7 Ej[:!L DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
Y , 1#Ls4+]5 BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
Pse1NMK9 [ cKey,UCHAR cMask)
7])cu>/ {
J2KULXF BOOL bAdded=FALSE;
lI)RaiMr= for(int index=0;index<MAX_KEY;index++){
pv}k=wqJ1 if(hCallWnd[index]==0){
t+H=%{z hCallWnd[index]=hWnd;
dj;Zzt3 HotKey[index]=cKey;
ZH1W#dt`[ HotKeyMask[index]=cMask;
eG@0: bAdded=TRUE;
Ala~4_" WL KeyCount++;
342m=7lK break;
K1_]ne)
}
hoLQuh%2% }
pxuZ=< return bAdded;
Bd8{25{c }
dF`\ewRFn //删除热键
|riP*b BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
fr19C%{ {
Li? _P5+a BOOL bRemoved=FALSE;
xn&$qLB for(int index=0;index<MAX_KEY;index++){
@)IHd6 R if(hCallWnd[index]==hWnd){
x!i(M>P if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
|_}
LMkU) hCallWnd[index]=NULL;
2w7PwNb*32 HotKey[index]=0;
#^] v5s HotKeyMask[index]=0;
^&Exa6=*FT bRemoved=TRUE;
6-+q3#e KeyCount--;
N Dqvt$ break;
C4].egVg }
2!Gb4V }
O^2@9
w }
/uNgftj return bRemoved;
W5f|#{&L: }
lQq&tz, Eq\PSa=gz 3=
q,k<=L DLL中的钩子函数如下:
J8;l G J^Mq4& LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
v90)G8|q {
jG E=7 BOOL bProcessed=FALSE;
{\P`-'C if(HC_ACTION==nCode)
%x]8^vze {
Twi7g3}/jB if((lParam&0xc0000000)==0xc0000000){// 有键松开
Vzmw%f)_+ switch(wParam)
7<Yf {
L3@upb case VK_MENU:
Ld9YbL: MaskBits&=~ALTBIT;
$*k9e ^{S break;
!Z}d^$ case VK_CONTROL:
CI}zu;4| MaskBits&=~CTRLBIT;
: g+5cs break;
sN_c4"\q case VK_SHIFT:
O'i!}$=g MaskBits&=~SHIFTBIT;
-,Oq=w*EV break;
w y\0o default: //judge the key and send message
J?1U'/Wx2 break;
?nwFc3qw }
[#3*R_#8R for(int index=0;index<MAX_KEY;index++){
3+uCTn0% if(hCallWnd[index]==NULL)
xIlo@W6 continue;
BB .^[:,dA if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
*^@{LwY\M {
`Vf k.OP SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
kgl7l?|O bProcessed=TRUE;
&|
guPZ }
!VzbNJ&' }
+{5y,0R }
Pc:5*H else if((lParam&0xc000ffff)==1){ //有键按下
26D,(Y$* switch(wParam)
b<]Ae!I' {
li +MnLt case VK_MENU:
-"9&YkN MaskBits|=ALTBIT;
*pP&$!bH% break;
"B34+fOur case VK_CONTROL:
<pXF$a:s MaskBits|=CTRLBIT;
[J-uvxD break;
knS(\51A case VK_SHIFT:
|Q\O%
cb MaskBits|=SHIFTBIT;
VUF$,F9 break;
H[M(t^GM default: //judge the key and send message
IHs^t/;Iv break;
F^/b!)4X }
|3:e$ for(int index=0;index<MAX_KEY;index++){
|}07tUq if(hCallWnd[index]==NULL)
{}A1[Y| continue;
1v
M'yr$ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
5X1z^( {
u &qFE=5: SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
u;/5@ADW bProcessed=TRUE;
V0O6\)/. }
NE1n 9 }
%vZTD+i }
6oA2"!u^w if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
I%Yeq"5RB for(int index=0;index<MAX_KEY;index++){
WW&agr if(hCallWnd[index]==NULL)
k7cM.<s! continue;
QO;OeMQv% if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
#<k L.e[ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
:5DL&,,Q3 //lParam的意义可看MSDN中WM_KEYDOWN部分
mFa%d8Y }
\kS:u}Ip! }
oz[Mt
i* }
0hB9D{`,{ return CallNextHookEx( hHook, nCode, wParam, lParam );
+WTO_J7 }
Gdu5
&]H#6 )a=58r07 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:
Ix59(g tSf$`4 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
|~d8j'rt BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
TaqqEL .VG5 / 6zp 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:
rQLl[a [~v1
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
CUI\:a- {
K4w#}gzok if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
+f"q^R IU {
6M^NZ0~J //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
}1}L&M@ SaveBmp();
iU1yJ= return FALSE;
/9o
gg }
hziPHuK9, …… //其它处理及默认处理
vvwQ/iJO4Q }
\nbGdka "+sl(A3`U ,CED% 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。
p2I9t| P~^VLnw 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。
Iss)7I WV?3DzeR 二、编程步骤
0vjlSHS;`. }c?W|#y`.o 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";
0YA Po*G/RKu4W 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
??
2x* l1 $O[$<D%H 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;
|]UR&* N/V~>UJ0{* 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;
sL",Ho 1{Kv 5、 添加代码,编译运行程序。
ODFCA.
t WXmR{za 三、程序代码
d$}!x[g$Z {?YBJnG}x ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
`"s*'P398 #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
3X:)r< #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
k,h
/B #if _MSC_VER > 1000
'Z}3XVZEN #pragma once
QJ^'Uyfdn #endif // _MSC_VER > 1000
sBq6,Iu #ifndef __AFXWIN_H__
K*sav?c #error include 'stdafx.h' before including this file for PCH
'jA>P\@8 #endif
k"$E|$ #include "resource.h" // main symbols
.EB'n{zxd class CHookApp : public CWinApp
IZSJ+KO {
<nk7vo?Ks public:
3`+Bq+ CHookApp();
N% !TFQf // Overrides
CY</v,\:# // ClassWizard generated virtual function overrides
,~nrNkhp //{{AFX_VIRTUAL(CHookApp)
Cw$7d:u public:
M$$Lsb [ virtual BOOL InitInstance();
(CR]96n virtual int ExitInstance();
CwdeW.A"j //}}AFX_VIRTUAL
h#~\-j9> //{{AFX_MSG(CHookApp)
E(p#Je|@[ // NOTE - the ClassWizard will add and remove member functions here.
0@LC8Bz+' // DO NOT EDIT what you see in these blocks of generated code !
e jh0Wfl //}}AFX_MSG
X"EZpJ'W DECLARE_MESSAGE_MAP()
g/(3D };
q445$ndCT LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
EC`=nGF BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
MG-#p8 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
k}hTSL BOOL InitHotkey();
m'PU0x BOOL UnInit();
T8W;Lb9hQ #endif
_L%
=Q ulu pZ)N,O3 //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
Rc2JgV #include "stdafx.h"
(TTS-( #include "hook.h"
iPCDxDLN3V #include <windowsx.h>
xtFGj,N #ifdef _DEBUG
a\ZNN k #define new DEBUG_NEW
3k# h!Z #undef THIS_FILE
Xx?~%o6 static char THIS_FILE[] = __FILE__;
Msst:}QY #endif
t b>At*tO #define MAX_KEY 100
FI8vABq #define CTRLBIT 0x04
nw,XA0M3 #define ALTBIT 0x02
P<C=9@`! #define SHIFTBIT 0x01
mkuK$Mj #pragma data_seg("shareddata")
N!%[.3o\K HHOOK hHook =NULL;
l>*L
Am5 UINT nHookCount =0;
^Rh`XE static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
=Q~@dP static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
0Z1';A3 static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
Id^)WEK4 static int KeyCount =0;
&HB!6T/ static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
|
{Tq/ #pragma data_seg()
W4p4[&c| HINSTANCE hins;
IBYSI0 void VerifyWindow();
a98J_^ n BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
P^^WViVX //{{AFX_MSG_MAP(CHookApp)
{wh, "Ok_ // NOTE - the ClassWizard will add and remove mapping macros here.
' '<3;
// DO NOT EDIT what you see in these blocks of generated code!
jT*?Z:U //}}AFX_MSG_MAP
7-VP)|L#G END_MESSAGE_MAP()
NiBly 0q o]nw CHookApp::CHookApp()
;iO5
8S3 {
k*K.ZS688 // TODO: add construction code here,
JXQh$hs // Place all significant initialization in InitInstance
HlOn=>)< }
U(:Di]>{ 1b,MJ~g$ CHookApp theApp;
w&x$RP LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
NCivh&HR {
!:3X{)4 BOOL bProcessed=FALSE;
V.}3d,Em%] if(HC_ACTION==nCode)
fk2p} {
L>&9+<-B if((lParam&0xc0000000)==0xc0000000){// Key up
c&'5r OY~ switch(wParam)
O39f {
|ngv{g case VK_MENU:
fL~@v-l#~ MaskBits&=~ALTBIT;
!g4u<7 break;
0b}.!k9 case VK_CONTROL:
*h
M5pw MaskBits&=~CTRLBIT;
_)ZxD--Qg break;
5S
4Bz case VK_SHIFT:
VQ8Q=!] MaskBits&=~SHIFTBIT;
9xOTR#B:_V break;
Kh7C7[& default: //judge the key and send message
Zg$RiQ^-{J break;
\p#_D|s/Ep }
)x3p7t)# for(int index=0;index<MAX_KEY;index++){
3c+ps;nh if(hCallWnd[index]==NULL)
Ya;y@44 continue;
QxT\_Nej*n if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
oVQbc\P3 {
>';UF;\5]Q SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
9`tSg!YOh bProcessed=TRUE;
+1nzyD_E }
W
H%EC$ }
>e!Y 63` }
e=`=7H4P else if((lParam&0xc000ffff)==1){ //Key down
;:
0<(!^* switch(wParam)
.u:aX$t+ {
AP+%T
case VK_MENU:
/vs79^& MaskBits|=ALTBIT;
Gq-~zmg break;
(,D:6(R7t case VK_CONTROL:
yX.; x 0 MaskBits|=CTRLBIT;
HcM/ break;
H'}6Mw%ra case VK_SHIFT:
jI%glO'2 MaskBits|=SHIFTBIT;
*iVEO break;
yof8L WXx default: //judge the key and send message
Nxr\Yey break;
NqM=Nu\ }
"V`5 $ur for(int index=0;index<MAX_KEY;index++)
uM,R +)3 {
o(yyj'=( if(hCallWnd[index]==NULL)
4"veq rC continue;
` <u2 N if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
@H$Sv {
PR7B
Cxm SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
sh*/wM bProcessed=TRUE;
kS4YxtvB }
40G'3HOp }
zEt!Pug }
wz>[CXpi_ if(!bProcessed){
#^{%jlmHxJ for(int index=0;index<MAX_KEY;index++){
m qwJya if(hCallWnd[index]==NULL)
Vwb_$Yi+] continue;
FuC\qF
if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
TE6]4E* SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
-""(>$b2 }
Py#TXzEcC }
#gVWLm< }
SqZ .}s return CallNextHookEx( hHook, nCode, wParam, lParam );
Qna*K7kv }
fr`Q
5!0 EiVVVmm! BOOL InitHotkey()
_&r19pY {
Q/0oe()) if(hHook!=NULL){
]QGo(+ nHookCount++;
Vfw H: return TRUE;
6!SW]#sD }
$\q.Zb else
f)mOeD*u| hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
DFvGc`O4 if(hHook!=NULL)
"^)GnK +- nHookCount++;
10xza=a return (hHook!=NULL);
a(LtiO
}
FKUo^F?z BOOL UnInit()
BjGfUQ {
I&`aGnr^^ if(nHookCount>1){
GT\yjrCd nHookCount--;
ozKS<< return TRUE;
jig3M N }
z[@i=avPG BOOL unhooked = UnhookWindowsHookEx(hHook);
m\70&%v if(unhooked==TRUE){
a#lytp nHookCount=0;
BkP4.XRI hHook=NULL;
;*0nPhBw0> }
Ze <)B
* return unhooked;
8Ltl32JSB[ }
sOb]o[= *Q#oV}D_ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
q]Kv.x]$R {
bGkLa/?S BOOL bAdded=FALSE;
w|Ry)[ for(int index=0;index<MAX_KEY;index++){
f8ZuG !U if(hCallWnd[index]==0){
#lc6-K# hCallWnd[index]=hWnd;
d2TIG<6/ HotKey[index]=cKey;
w@Asz9Lq% HotKeyMask[index]=cMask;
Z}{]/=h bAdded=TRUE;
ydA@@C\& KeyCount++;
p{:y?0pGN break;
CM%;/[WBxy }
?J-\}X }
+o):grWvQ return bAdded;
QN|=/c<U }
mX!*|$bs ||ugb6q[6B BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Gpi_p {
5=I"bnIU BOOL bRemoved=FALSE;
62MQ+H for(int index=0;index<MAX_KEY;index++){
0
/9 C=v if(hCallWnd[index]==hWnd){
\hn$-'=4 if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
78r0K 5= hCallWnd[index]=NULL;
Xvoz4'Gme HotKey[index]=0;
1Wiz0X/ HotKeyMask[index]=0;
1z0|uc
bRemoved=TRUE;
kKjcW` [ KeyCount--;
iSUu3Yv,_m break;
UWhJkJsX }
'IT]VRObP }
~ch%mI~ }
'Ebjn>" return bRemoved;
&=kb>* }
}"SqB{5e( wX_~H*m? void VerifyWindow()
;)wk^W {
@WJ\W `P for(int i=0;i<MAX_KEY;i++){
~mwIr if(hCallWnd
!=NULL){ UvM4-M%2JN
if(!IsWindow(hCallWnd)){ \WbQS#Z9
hCallWnd=NULL; DycXJ3eQ
HotKey=0; F n iht<
HotKeyMask=0; AJE$Z0{q
KeyCount--; w^("Pg`
} U=7nz|
} J#ClQ%
} qS"#jxc==+
} ]T)<@bmL
!d U$1:7
BOOL CHookApp::InitInstance() t%J1(H
{ Iqn
(NOq^[
AFX_MANAGE_STATE(AfxGetStaticModuleState()); 7!h>
< sx
hins=AfxGetInstanceHandle(); IF-y/]
InitHotkey(); Jz3,vVfQ:
return CWinApp::InitInstance(); HTz`$9
} m(d|TwG{
0FY-e~xr
int CHookApp::ExitInstance() &%GAPs%
{ mwyB~,[d+W
VerifyWindow(); A_WaRYG
UnInit(); I8`$a
return CWinApp::ExitInstance(); nm& pn*1
} /nu z_y\J
,hT.Ok={36
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file <pjxJ<1l
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) V0#Ocq,
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ (>f`>6 V
#if _MSC_VER > 1000 eG8l^[
#pragma once A0U9,M
#endif // _MSC_VER > 1000 2ZEGE+0
U*E)y7MY
class CCaptureDlg : public CDialog \G7F/$g
{ awvP;F?q|
// Construction @6UZC-M0
public: \v5;t9uBZ
BOOL bTray; c#"t.j<E}
BOOL bRegistered; zH6@v+gb
BOOL RegisterHotkey(); ;,e16^\' &
UCHAR cKey; esQ$.L
UCHAR cMask; "tl$JbRTY
void DeleteIcon(); t*-cX
void AddIcon(); bk;uKV+<
UINT nCount; RPte[tq
void SaveBmp(); 3u4Q!U%(D
CCaptureDlg(CWnd* pParent = NULL); // standard constructor 5ya^k{`+ZO
// Dialog Data tl\<:8pI"
//{{AFX_DATA(CCaptureDlg) {V[}#Mf
enum { IDD = IDD_CAPTURE_DIALOG }; J|DZi2o
CComboBox m_Key; -W<1BJE
BOOL m_bControl; 'P" i9j
BOOL m_bAlt; )7.DF|A
BOOL m_bShift; &e;Qabwxva
CString m_Path; vJ=Q{_D=\
CString m_Number; CswKT9
//}}AFX_DATA \q4r/SbgW
// ClassWizard generated virtual function overrides =-X-${/
//{{AFX_VIRTUAL(CCaptureDlg) 7gZ}Qy
public: vNrn]v=|}7
virtual BOOL PreTranslateMessage(MSG* pMsg); wT6zeEV~*
protected: <F;+A{M)
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support `]XI Q\ *
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); 7pciB}$2
//}}AFX_VIRTUAL qt*+ D
// Implementation X!/Sk1
protected: >5:O%zQ@
HICON m_hIcon; zBTW&
// Generated message map functions `OWHf?t:
//{{AFX_MSG(CCaptureDlg) y%;o
virtual BOOL OnInitDialog(); q~[sKAh
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); S#v3%)R
afx_msg void OnPaint(); YzQ1c~+
afx_msg HCURSOR OnQueryDragIcon(); |\?u-O3
virtual void OnCancel(); PnaiSt9p?r
afx_msg void OnAbout(); eh `%E0b}
afx_msg void OnBrowse(); %K-8DL8|(
afx_msg void OnChange(); '&B4Ccn<V
//}}AFX_MSG F]UH\1
DECLARE_MESSAGE_MAP() Q= fl!>P
}; %dg[ho
#endif ,xVAJ6_#
{.jW"0U
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file )y;7\-K0
#include "stdafx.h" c>{QTI:]
#include "Capture.h" ],S {?!'1
#include "CaptureDlg.h" RK &>!^
#include <windowsx.h> *wj5( B<y
#pragma comment(lib,"hook.lib") 16~E
#ifdef _DEBUG ZIc.MNq
#define new DEBUG_NEW _UPfqC ?
#undef THIS_FILE o!KDeY
static char THIS_FILE[] = __FILE__; dCTyfXou[=
#endif OQB7C0+ &
#define IDM_SHELL WM_USER+1 HNv~ZAzBG-
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); Cd"{7<OyM4
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); wN4#j}C
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; ]lBCK
class CAboutDlg : public CDialog dp'[I:X
{ ceJi|`F
public: ?X6}+
CAboutDlg(); ]4en|Aq
// Dialog Data n"6L\u
//{{AFX_DATA(CAboutDlg) U].]K
enum { IDD = IDD_ABOUTBOX }; 9%iQ~
//}}AFX_DATA N\ !
// ClassWizard generated virtual function overrides /}m*|cG/
//{{AFX_VIRTUAL(CAboutDlg) _7<{+Zzm
protected: yvoz 3_!
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 7\,9Gcv1
//}}AFX_VIRTUAL bC1G5`v_D
// Implementation iI";m0Ny
protected: Gw$ 5<%sB
//{{AFX_MSG(CAboutDlg) ~<n.5q%Z
//}}AFX_MSG )B0%"0?`8
DECLARE_MESSAGE_MAP() 0O>ClE~P
}; ~;#}aQYo
mA+:)?e5~
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) ()l3X.t,$
{ ~BmA!BZV`
//{{AFX_DATA_INIT(CAboutDlg) Q}L?o
//}}AFX_DATA_INIT yW=+6@A4
} C$1W+(
71{jedT
void CAboutDlg::DoDataExchange(CDataExchange* pDX) A+0-pF2D
{ r.\L@Y<
CDialog::DoDataExchange(pDX); K8&;B)VT>
//{{AFX_DATA_MAP(CAboutDlg) X&?s:A
//}}AFX_DATA_MAP za@/4z
} ()?83Xj[c
LsuOmB| ^
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) =oq8SL?bJ*
//{{AFX_MSG_MAP(CAboutDlg) lt&(S)
// No message handlers ggx_h
//}}AFX_MSG_MAP +wmG5!%$|
END_MESSAGE_MAP() P8,Ps+
4>>=TJ!M
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) ezp%8IZ;
: CDialog(CCaptureDlg::IDD, pParent) ^0OP&s;"
{ bTaKB-
//{{AFX_DATA_INIT(CCaptureDlg) i9DD)Y<
m_bControl = FALSE; M>]A!W=
m_bAlt = FALSE;
-9i7Ja
m_bShift = FALSE; sE6>JaH
m_Path = _T("c:\\"); *c94'T cl
m_Number = _T("0 picture captured."); Lr$Mk#'B
nCount=0; {4G/HW28
bRegistered=FALSE;
K%? g6j
bTray=FALSE; jfY7ich
//}}AFX_DATA_INIT Ey|_e3Lf[
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 r@{TN6U
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); !ka* rd
} !B}9gT
7t:RQ`$:
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) yQD>7%x
{ _xp8*2~-
CDialog::DoDataExchange(pDX); Mz(Vf1pi%
//{{AFX_DATA_MAP(CCaptureDlg) ?1SsF>|
DDX_Control(pDX, IDC_KEY, m_Key); rm,`M
DDX_Check(pDX, IDC_CONTROL, m_bControl); Z,.Hz\y1D
DDX_Check(pDX, IDC_ALT, m_bAlt); WR"D7{>tw
DDX_Check(pDX, IDC_SHIFT, m_bShift); YOD.y!.zq7
DDX_Text(pDX, IDC_PATH, m_Path); ]$@D=g,r
DDX_Text(pDX, IDC_NUMBER, m_Number); qJrT
//}}AFX_DATA_MAP c>B1cR
} $ s/E}X
P9
<U+\z
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) @owneSD qN
//{{AFX_MSG_MAP(CCaptureDlg) T$xBH
ON_WM_SYSCOMMAND() 56 3mz-
ON_WM_PAINT() tX{yR'Qhu
ON_WM_QUERYDRAGICON() E[]5Od5#
ON_BN_CLICKED(ID_ABOUT, OnAbout) No'?8 +i
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) ecghY=%
ON_BN_CLICKED(ID_CHANGE, OnChange) Hsf::K x
//}}AFX_MSG_MAP E+]9!fDy<
END_MESSAGE_MAP() /uwi$~Ed
_qxI9Q}<"
BOOL CCaptureDlg::OnInitDialog() ?FQ#I~'<
{ XVYFyza;
CDialog::OnInitDialog(); Rqh5FzB>
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); W&?Qs=@
ASSERT(IDM_ABOUTBOX < 0xF000); <OMwi9
CMenu* pSysMenu = GetSystemMenu(FALSE); "<!U
if (pSysMenu != NULL) aixX/se
{ JL1ajlm~
CString strAboutMenu; WEimJrAn
strAboutMenu.LoadString(IDS_ABOUTBOX); ^Co$X+
if (!strAboutMenu.IsEmpty()) >X*tMhcb
{ 2X?GEO]/4
pSysMenu->AppendMenu(MF_SEPARATOR); KUAzJ[>
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); TN2Ln?[xU
} j~Aq-8R=
} kOYUxr.b
SetIcon(m_hIcon, TRUE); // Set big icon 4+RR`I8$Ge
SetIcon(m_hIcon, FALSE); // Set small icon @%]A,\
m_Key.SetCurSel(0); M3pE$KT0x
RegisterHotkey(); u5(8k_7
CMenu* pMenu=GetSystemMenu(FALSE); {{?g%mQ6
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); ')y2W1
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); ]:|B).
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); .,bpFcQ
return TRUE; // return TRUE unless you set the focus to a control i}) s4%a
} }e?H(nZS7h
L8VOiK=,
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) ;o_F<68QP
{ !(GyOAb
if ((nID & 0xFFF0) == IDM_ABOUTBOX) P!eo#b^S
{
54+(o6E<
CAboutDlg dlgAbout; *GT=U(d
dlgAbout.DoModal(); 8h=t%zMSb
} f!9i6
else 4<y
{ Zse&{
CDialog::OnSysCommand(nID, lParam); $9)os7H7
} jf~](TK
} k?+ 7%A]
WAa45G
void CCaptureDlg::OnPaint() B*(]T|ff<
{ p)y5[HX
if (IsIconic()) j/O~8o&
{ i5VZ,E^E
CPaintDC dc(this); // device context for painting sT M;l,
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); T6U/}&{O
// Center icon in client rectangle zJe KB8
int cxIcon = GetSystemMetrics(SM_CXICON); oP&/>GmXL
int cyIcon = GetSystemMetrics(SM_CYICON); UVo`jb|>
o
CRect rect; aSzI5J]/=
GetClientRect(&rect); `q^#u
int x = (rect.Width() - cxIcon + 1) / 2; 2Y
vr|] \8
int y = (rect.Height() - cyIcon + 1) / 2; ge~@}iO@
// Draw the icon *]$B 9zVs!
dc.DrawIcon(x, y, m_hIcon); DXs an
} )9]a
else ".?4`@7F\
{ XUqorE
CDialog::OnPaint(); n|( lPbD
} p5G'})x
} b6D;98p
|R`"Zu`
HCURSOR CCaptureDlg::OnQueryDragIcon() M3(N!xT
{ R'>!1\?Iq
return (HCURSOR) m_hIcon; ON :t"z5
} Bn}woyJdx
\T7Mt|f:5
void CCaptureDlg::OnCancel() a>wCBkD
{ Ep7MU&O0iK
if(bTray) 6 d-\+t8
DeleteIcon(); ov6xa*'a
CDialog::OnCancel(); sy: xA w
} 4Yj1Etq.E
n5:uG'L\
void CCaptureDlg::OnAbout() -$Oh.B`i
{ :Sq]|)
CAboutDlg dlg; Vao:9~
dlg.DoModal(); bJ~H
} DB'v7
Ij0
9]4Q@%
void CCaptureDlg::OnBrowse() sPH2KwEv
{ 3SVGx<,2
CString str; F-&tSU,
BROWSEINFO bi; T[oC='I+O
char name[MAX_PATH]; v=U<exM6%
ZeroMemory(&bi,sizeof(BROWSEINFO)); ]G/m,Zv*:
bi.hwndOwner=GetSafeHwnd(); =RoG?gd{R
bi.pszDisplayName=name; 3$|/7(M&DA
bi.lpszTitle="Select folder"; Pvxb6\G&d
bi.ulFlags=BIF_RETURNONLYFSDIRS; -`O{iHfM|P
LPITEMIDLIST idl=SHBrowseForFolder(&bi); f1 ;
if(idl==NULL) VD;*UkapZx
return; ^HKXm#vAB
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); .wfydu)3
str.ReleaseBuffer(); SE'Im
m_Path=str; d:=' Xs
if(str.GetAt(str.GetLength()-1)!='\\') /9`4f "
m_Path+="\\"; u47<J?!Q
UpdateData(FALSE); HIg2y
} '7iz5wC#
~Amq1KU*Z
void CCaptureDlg::SaveBmp() T5XXC1+
{ D6"=2XR4n
CDC dc; -l^<[%
dc.CreateDC("DISPLAY",NULL,NULL,NULL); j*{0<hZb}
CBitmap bm; ,}oAc
int Width=GetSystemMetrics(SM_CXSCREEN); ;Afz`Se1@
int Height=GetSystemMetrics(SM_CYSCREEN); p~D}Iyww1_
bm.CreateCompatibleBitmap(&dc,Width,Height); djd/QAfSC
CDC tdc; )U/jD
tdc.CreateCompatibleDC(&dc); VYk:c`E
CBitmap*pOld=tdc.SelectObject(&bm); J9^NHU
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); #Hw|P
tdc.SelectObject(pOld); ?CpVA
BITMAP btm; E C#0-,z
bm.GetBitmap(&btm); ;%e&6
DWORD size=btm.bmWidthBytes*btm.bmHeight; T{{:p\<]_
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); 6= iHw24
BITMAPINFOHEADER bih; BWt`l,nF
bih.biBitCount=btm.bmBitsPixel; Y;i=c6
bih.biClrImportant=0; o) )` "^
bih.biClrUsed=0; c6h?b[]
bih.biCompression=0; <,i4Ua
bih.biHeight=btm.bmHeight; 5'2kP{;
bih.biPlanes=1; KC/O
EJ`
bih.biSize=sizeof(BITMAPINFOHEADER); {6i|"5_j
bih.biSizeImage=size; #;[G>-tC
bih.biWidth=btm.bmWidth; [vg&E
)V
bih.biXPelsPerMeter=0; oC0ndp~+&
bih.biYPelsPerMeter=0; 56V|=MzX]
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); HD j6E"
static int filecount=0; #]` uH{
CString name; u]p21)m$x
name.Format("pict%04d.bmp",filecount++); d:kB Zrq
name=m_Path+name; ?UnQ?F(+G<
BITMAPFILEHEADER bfh; U4D7@KY +m
bfh.bfReserved1=bfh.bfReserved2=0; rH@Rh}#yp
bfh.bfType=((WORD)('M'<< 8)|'B'); \8vP"Kr
bfh.bfSize=54+size; a4Q@sn;]
bfh.bfOffBits=54; }(EH5jZ'
CFile bf; !fOPYgAGKn
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ epy2}TI
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); zsL@0]e&
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); D|uvgu2
bf.WriteHuge(lpData,size); rXx#<7`
bf.Close(); ,\4]uZ<
nCount++; c_8&4
} <WXVUEea
GlobalFreePtr(lpData); x,B] J4
if(nCount==1) 3>O|i2U
m_Number.Format("%d picture captured.",nCount); %:3XYO.w-
else F*72g)hVh
m_Number.Format("%d pictures captured.",nCount); RQVu~7d[
UpdateData(FALSE); ztp|FUi
} e@D_0OZ
'|8dt "C
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) EPm~@8@"j?
{ : auR0FE
if(pMsg -> message == WM_KEYDOWN) *`>BOl+ro
{ k^5Lv#Z
if(pMsg -> wParam == VK_ESCAPE) J1w;m/oV
return TRUE; /\mtCa.O
if(pMsg -> wParam == VK_RETURN) t G_4>-Y#w
return TRUE; 8Qv s\TY
} `v*HH}aDO
return CDialog::PreTranslateMessage(pMsg); Wjb_H
(D
} J%"BCbxW~B
0|&@)`
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) @MSmg3&
{ F#Lo^ 8
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ c^}y9% 4c
SaveBmp(); 80lei
return FALSE; '*J+mZt N
} BJ|l
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ J0xHpe
CMenu pop;
&@iOB #H
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); nFnM9
pdMK
CMenu*pMenu=pop.GetSubMenu(0); ;;0'BdsL`
pMenu->SetDefaultItem(ID_EXITICON); H|%J"
CPoint pt; {npm9w<;
GetCursorPos(&pt); :=Olp;+_
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); c'oiW)8;A
if(id==ID_EXITICON) $ XjijD9R
DeleteIcon(); \n<!
ld
else if(id==ID_EXIT) VLuHuih
OnCancel(); erH,EE^-x<
return FALSE; )/RG-L
} 4'QX1p
LRESULT res= CDialog::WindowProc(message, wParam, lParam); uw;Sfx,s
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) x|O7}oj
AddIcon(); v,w af`)J
return res; Giyh( DL
} {&5lZ<nu8A
&8$v~
void CCaptureDlg::AddIcon() *5)UIRd
{ >Hf{Mx{<
NOTIFYICONDATA data; gk6f_0?X'
data.cbSize=sizeof(NOTIFYICONDATA); 1!z{{H;W
CString tip; 'Lu<2=a~
tip.LoadString(IDS_ICONTIP); eiMP:
data.hIcon=GetIcon(0); *Fy6-CC1
data.hWnd=GetSafeHwnd(); "Zp&7hI
strcpy(data.szTip,tip); z\ZnxZ@
data.uCallbackMessage=IDM_SHELL; Qs1p
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; JK$3qUDnI
data.uID=98; u)oAQ<w
Shell_NotifyIcon(NIM_ADD,&data); ~ZKJ:&f