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:
>(r{7Qg
\3Pv# ) 一、实现方法
HDVW0QaMu Z(u5$<up 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
c$:1:B9\ 0nJE/JZ #pragma data_seg("shareddata")
iD`d99f8O HHOOK hHook =NULL; //钩子句柄
0Yl4eB- UINT nHookCount =0; //挂接的程序数目
^Hrn ] static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
6"/WZmOp static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
$P z`$~ static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
,CvG 20> static int KeyCount =0;
<eN_1NTH_ static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
'sh~,+g #pragma data_seg()
o:S0* C NsNZJ 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。
s 5WqR8 \Q~8?p+ 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:
H
3@Z.D lg: BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
0'5/K , cKey,UCHAR cMask)
0 (U#) {
Fmyj*)J[Z BOOL bAdded=FALSE;
O`G/=/GZ for(int index=0;index<MAX_KEY;index++){
=,y |00l if(hCallWnd[index]==0){
80b;I|-T, hCallWnd[index]=hWnd;
\1"'E@+ HotKey[index]=cKey;
/E;y,o75 HotKeyMask[index]=cMask;
d}'U?6ob bAdded=TRUE;
h `}} KeyCount++;
*&BnF\?m break;
/ID3s`D) }
Z@a9mFI? }
E/M_lvQ return bAdded;
KRAcnY;u }
=GlVc cc //删除热键
Ub1hHA*) BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
<%.5hCTp97 {
ldha|s.* BOOL bRemoved=FALSE;
Tm}rH]F& for(int index=0;index<MAX_KEY;index++){
XfPFo6 if(hCallWnd[index]==hWnd){
7?j;7.i
s( if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
IU FH:w] hCallWnd[index]=NULL;
M<O{O}t< HotKey[index]=0;
Vd^g9 HotKeyMask[index]=0;
E 99hlY~1: bRemoved=TRUE;
$YxBE`)d- KeyCount--;
(*}yjUYLZ break;
"@R>J?Cc+ }
>Y7a4~ufko }
2H71~~ c }
KmG return bRemoved;
T>TWU: }
ca i<,3H K 0gI): z>sbr<doa DLL中的钩子函数如下:
L`f^y;Y. 5oEV-6 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
o#) {1<0vg {
Z4<L$i;/jN BOOL bProcessed=FALSE;
A?_ =K if(HC_ACTION==nCode)
ZkL8 e {
dQoYCS}IaV if((lParam&0xc0000000)==0xc0000000){// 有键松开
4[Z\
?[ switch(wParam)
glD cUCF3 {
v+p{|X- case VK_MENU:
0a8/B>
MaskBits&=~ALTBIT;
{3;AwhN0H break;
;g{qYj_ case VK_CONTROL:
!!@A8~H MaskBits&=~CTRLBIT;
valtev0< break;
L,y6^J! case VK_SHIFT:
8n1'x; MaskBits&=~SHIFTBIT;
!cKz7?w break;
B9p?8.[ default: //judge the key and send message
s { #3r break;
Uc/+gz
Z; }
#/PA A for(int index=0;index<MAX_KEY;index++){
DPi_O{W> if(hCallWnd[index]==NULL)
5T sU Qc continue;
HeBcT^a if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
*6HTV0jv {
COH<Tj SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
J>fQNW!{ bProcessed=TRUE;
mF` B# }
UOQEk22 }
c/c$D;T }
h(WrL else if((lParam&0xc000ffff)==1){ //有键按下
dJ$"l|$$ switch(wParam)
fXrXV~'8 {
d%l{V6 case VK_MENU:
^u3V
E MaskBits|=ALTBIT;
f0Bto/,>~ break;
LU!dN "[k case VK_CONTROL:
h -iJlm MaskBits|=CTRLBIT;
rG,5[/l break;
3u%{dG a case VK_SHIFT:
z-M3 MaskBits|=SHIFTBIT;
9x,RvWTb break;
ss;R8:5 default: //judge the key and send message
~?B;!Csk break;
A?Bif; }
SG6sw]x for(int index=0;index<MAX_KEY;index++){
!i=nSqW if(hCallWnd[index]==NULL)
>0Q|nCx continue;
N0#JOu}~ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
%Uz(Vd#K {
=8U&[F SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
Q:J^" bProcessed=TRUE;
>X*Mio8P# }
GhPK-+"X }
,3nN[)dk }
OY?y ^45y if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
JN7k 2]{ for(int index=0;index<MAX_KEY;index++){
!^Q.VYY if(hCallWnd[index]==NULL)
@&[T _l continue;
iNMx"F0r if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
2NB L}x SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
qJ0fQI\ //lParam的意义可看MSDN中WM_KEYDOWN部分
)BRKZQN }
eh"3NRrN }
|_uaS }
*)+ut(x|# return CallNextHookEx( hHook, nCode, wParam, lParam );
?-1r$31p }
m&|`x LM2TZ 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
RT%pDym\ sXNb }gJ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
CbN!1E6). BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
*Q1~S]g ]9\!;Bz^J 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
P./VmY' {3&|tk!* LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
QBR=0(giF {
kI%%i>Y} if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
WJ*n29^N^h {
/lafve~ //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
y\&>ZyOY SaveBmp();
np~~mdmRK return FALSE;
MxBTX4ES }
N/GQt\tV< …… //其它处理及默认处理
41fJ%f`
G }
{[+2n]f_G Q
X%&~ q 4V7 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
F{ELSKcp. ;'-olW~ 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
D-,L&R!` fryJW= 二、编程步骤
n-DVT;y : }`-B0 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
%Q!`NCe+[ x\QY@9 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
wY"Q o7 7.j[a*^ 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
.; )l A'nq}t 3 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
Znetzm=0 cW+t#>'r 5、 添加代码,编译运行程序。
,K^4fL$C;3 Oh4AsOj@ 三、程序代码
`c'W-O/ Yq/.-4y ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
YBnA+l* #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
itzyCw2|# #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
<7Ae-!>x #if _MSC_VER > 1000
IJ/sX_k #pragma once
e${)w-R/e #endif // _MSC_VER > 1000
}W
^: cp #ifndef __AFXWIN_H__
~b:Rd{ #error include 'stdafx.h' before including this file for PCH
)Z %T27r,^ #endif
JAI)Eqqv] #include "resource.h" // main symbols
aH#l9kCb class CHookApp : public CWinApp
bMU(?hb {
z~A]9|/61v public:
@JRNb=?a CHookApp();
3"{.37Q // Overrides
~xoF6CF // ClassWizard generated virtual function overrides
77Bgl4P //{{AFX_VIRTUAL(CHookApp)
pFJB'=c public:
k#5}\w! virtual BOOL InitInstance();
c5mZG7- virtual int ExitInstance();
~(]0k.\ //}}AFX_VIRTUAL
#Z5}2soA //{{AFX_MSG(CHookApp)
Iuh/I +[7 // NOTE - the ClassWizard will add and remove member functions here.
c*R/]Dn // DO NOT EDIT what you see in these blocks of generated code !
?Mee
6 //}}AFX_MSG
'FYJMIs DECLARE_MESSAGE_MAP()
*s;|T?~i };
O2"gj"D LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
2./3 \n2 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
+Y+Y6Ac[} BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
){Ob,LEU& BOOL InitHotkey();
"kc/J*u-3 BOOL UnInit();
M|] "W #endif
Ka`=WeJ| Yf[Qtmh]I //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
M5x U9]B #include "stdafx.h"
>fIk;6<{ #include "hook.h"
mJM_2Ab #include <windowsx.h>
B7z -7&TE #ifdef _DEBUG
^H6<Km
l/V #define new DEBUG_NEW
YX*Qd$chZ #undef THIS_FILE
OaL\w
D^ static char THIS_FILE[] = __FILE__;
R-P-i0~ #endif
K+6e?5t #define MAX_KEY 100
qL94SW; #define CTRLBIT 0x04
)TmHhNo #define ALTBIT 0x02
^OErq&`u #define SHIFTBIT 0x01
"HXYNS> #pragma data_seg("shareddata")
}=!,o HHOOK hHook =NULL;
)7:J[0ZiQ UINT nHookCount =0;
o`.R!wm:W static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
`N5|Ho*C static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
h`MF#617 static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
_wdG|{px static int KeyCount =0;
72veLB static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
5 B=^v#m #pragma data_seg()
F!.E5<&7= HINSTANCE hins;
wYlf^~#" void VerifyWindow();
3T&6opaF BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
u~)`&1{% //{{AFX_MSG_MAP(CHookApp)
Y\0}R,]a- // NOTE - the ClassWizard will add and remove mapping macros here.
+NFzSal // DO NOT EDIT what you see in these blocks of generated code!
z;u //}}AFX_MSG_MAP
%4W$Lq} END_MESSAGE_MAP()
F H1Z2 |g3?y/l CHookApp::CHookApp()
>YUoh-]` {
rhL" i^ // TODO: add construction code here,
,E.' o=Z // Place all significant initialization in InitInstance
]
7 _`]7p }
M,5"b+mX[~ sZLT<6_B CHookApp theApp;
`~X!Ll LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
Sc7U|s {
4l&g6YneX BOOL bProcessed=FALSE;
/W<>G7%. if(HC_ACTION==nCode)
eu|j=mB {
4hw@yTUo if((lParam&0xc0000000)==0xc0000000){// Key up
b]a@ switch(wParam)
"U\JV)N {
p^iRPI case VK_MENU:
+S))3 5N[ MaskBits&=~ALTBIT;
4R5D88=C break;
>s` J5I! case VK_CONTROL:
. <tq61 MaskBits&=~CTRLBIT;
P+)DsZ0ig break;
s#uJ
;G case VK_SHIFT:
"l >Igm MaskBits&=~SHIFTBIT;
ujJI
1I break;
`
}3qhar default: //judge the key and send message
"YB**Y break;
?3O9eZY@ }
eznypY= for(int index=0;index<MAX_KEY;index++){
YSaJeU>@ if(hCallWnd[index]==NULL)
D/=5tOy continue;
mR;qMX)0h if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
+x1eJug4 {
Tz9`uW~Mf SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
\(">K bProcessed=TRUE;
{Ha8]y }
>><.3 }
]QuM<ms }
=~I-]4 else if((lParam&0xc000ffff)==1){ //Key down
IuZ) [*W switch(wParam)
.SWt3|Pi5 {
2y%,p{=" case VK_MENU:
fBQ?|~:n MaskBits|=ALTBIT;
7u[j/l, break;
Gy[O)PEEh case VK_CONTROL:
3/#:~a9Q MaskBits|=CTRLBIT;
:{q"G# break;
>O5m5@GK3a case VK_SHIFT:
\u&_sBLKV MaskBits|=SHIFTBIT;
;sch>2&ZWU break;
ejA%%5q default: //judge the key and send message
Erk?}E break;
Ys!>+nL| }
vS;1/->WD for(int index=0;index<MAX_KEY;index++)
F:#J:x' {
oDcKtB+2 if(hCallWnd[index]==NULL)
?:Y#Tbi3 continue;
S!{t6'8K if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Jl "mL {
n8hRaNHl2 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
y ?G_y bProcessed=TRUE;
qT/Do?Y }
?b!Fa }
<|?K%FP7Z }
JH7Ad (: if(!bProcessed){
Ez{MU@Fk for(int index=0;index<MAX_KEY;index++){
ql<rU@ if(hCallWnd[index]==NULL)
b~BIz95 continue;
Z@gnsPN^r if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
[Ei1~n)o SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
DKVT(#@T }
GTv#nnC }
bJ_cId8+ }
V]S1X^ return CallNextHookEx( hHook, nCode, wParam, lParam );
[j4v]PE }
Eq:2k)BE
oQ=>'w BOOL InitHotkey()
3DaQo0N {
=_]2&(? if(hHook!=NULL){
"S&%w8V nHookCount++;
>]=j'+] return TRUE;
*;|`E( }
0hZ1rqq8C else
g=T/_ hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
C[WCg9Av if(hHook!=NULL)
`c+/q2M nHookCount++;
Y
qcD-K return (hHook!=NULL);
eh R{X7J }
A>VX*xd BOOL UnInit()
.qob_dRA {
EVQ0l@K
if(nHookCount>1){
tvd0R$5} nHookCount--;
vEQ<A<[Z return TRUE;
gw _$ }
vB!|\eJ BOOL unhooked = UnhookWindowsHookEx(hHook);
_ q(Q if(unhooked==TRUE){
N -w(e nHookCount=0;
YK{a hHook=NULL;
(5^ZlOk3 }
8e0."o.6 return unhooked;
s/Xb^XjS1 }
[Vdz^_@Y 1nPZ<^A&@ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
w{ `|N$ {
#0;HOeIiH BOOL bAdded=FALSE;
j8 C8X$ for(int index=0;index<MAX_KEY;index++){
_#o'
+_Z if(hCallWnd[index]==0){
}1-I[q6 hCallWnd[index]=hWnd;
z<]bv7V HotKey[index]=cKey;
s=Q(C[%I HotKeyMask[index]=cMask;
9SMiJad< bAdded=TRUE;
m=qOg>k KeyCount++;
`Pc3?~>0HH break;
R.s|j= }
`P@- %T }
%]p6Kn/> return bAdded;
c<+;4z }
%f8Qa"j @U -$dw'4 BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
+rWZ|&r% {
G%#05jH BOOL bRemoved=FALSE;
TOLl@p]lU for(int index=0;index<MAX_KEY;index++){
}jSj+* if(hCallWnd[index]==hWnd){
x?D/.vrOY if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
bl/,*Wx:4. hCallWnd[index]=NULL;
T@^]i& HotKey[index]=0;
N]5m(@h
HotKeyMask[index]=0;
mCKk*5ws5" bRemoved=TRUE;
H;WY!X$x KeyCount--;
ezTZnutZ break;
G[idN3+# }
zGc(Ef5`M6 }
OY"6J@[z }
ZkB3[$4C=5 return bRemoved;
TJ6#P<M }
NBl
__q O_K_f+7 void VerifyWindow()
L(&}Wv {
*Zd84wRSj for(int i=0;i<MAX_KEY;i++){
oQ+61!5> if(hCallWnd
!=NULL){ L4f7s7rJ
if(!IsWindow(hCallWnd)){ o07IcIo
hCallWnd=NULL; e,A)U5X
HotKey=0; U l Mi.;/^
HotKeyMask=0; /48 =UK
KeyCount--; b4,jN~ci
} bdh(WJh%
} 6-,m}Ce\
} _|isa]u\z
} wz -)1!
TF+
l5fv
BOOL CHookApp::InitInstance() |kiJ}oy
{ o4=Yu7L
AFX_MANAGE_STATE(AfxGetStaticModuleState()); Gk~l,wV>
hins=AfxGetInstanceHandle(); 1K|@h&@
InitHotkey(); g?qKNY
return CWinApp::InitInstance(); %Ny) ?B
} \Mi#{0f+q
#I`ms$j%
int CHookApp::ExitInstance() 'b:Ne,<
{ ecH/Wz1
VerifyWindow(); 3/M.0}e
UnInit(); #-u [$TA
return CWinApp::ExitInstance(); %6 =\5>
} :,*eX' fH
1(`M~vFDK
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file hhRaJ
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) &:?e &
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ jOtX
60;
#if _MSC_VER > 1000 DpL8'Dib
#pragma once :_d3//|
#endif // _MSC_VER > 1000 w! q&
I6OSC&A`
class CCaptureDlg : public CDialog CdhSp$>
{ JE%A|R<Jl
// Construction ?p8k{N(1
public: QV,E#(\5
BOOL bTray; nx4P^PC
BOOL bRegistered; P0\eBS
BOOL RegisterHotkey(); {^RG%
&S
UCHAR cKey; w4MwD?i]R
UCHAR cMask; @eQld\h'
void DeleteIcon(); VTh$a_P>
void AddIcon(); _GbE^
UINT nCount; ]O!s'lC
void SaveBmp(); fCEz-TMW
CCaptureDlg(CWnd* pParent = NULL); // standard constructor CD?&<NV
// Dialog Data (M% ;~y\
//{{AFX_DATA(CCaptureDlg) rH}fLu8,;Q
enum { IDD = IDD_CAPTURE_DIALOG }; C%H9[%k
CComboBox m_Key; oK-!(1A-
BOOL m_bControl; IbdM9qo7
BOOL m_bAlt; A'eAu
BOOL m_bShift; 6
nGY^
CString m_Path; -gKpL\
CString m_Number; h-'wV${b
//}}AFX_DATA 3;BvnD7
// ClassWizard generated virtual function overrides VbxAd 2')
//{{AFX_VIRTUAL(CCaptureDlg) YQ,tt<CQ
public: By)3*<5a_
virtual BOOL PreTranslateMessage(MSG* pMsg); P%GkcV
protected: Xm[Czd]%
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 8j\d~Lw=
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); g{DFS[h
//}}AFX_VIRTUAL lIDl1Z@Z
// Implementation QN 0r E@a
protected: SgSk!lj
HICON m_hIcon; x1DVD!0 ~{
// Generated message map functions )}|mDN&P
//{{AFX_MSG(CCaptureDlg) zHxmA
virtual BOOL OnInitDialog(); 9A;6x$s
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); wA0eG@xi)
afx_msg void OnPaint(); o8D{dS>,PL
afx_msg HCURSOR OnQueryDragIcon(); vw
rRZ"2
virtual void OnCancel(); @6%gIsj<H
afx_msg void OnAbout(); 2YIF=YWO},
afx_msg void OnBrowse(); G)+Ff5e0L[
afx_msg void OnChange(); 6D*chvNA;
//}}AFX_MSG Zps&[;R$-
DECLARE_MESSAGE_MAP() i]M"Cu*
}; 91;HiILgT
#endif ?Leyz
?Y!U*& 7
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file 2}`R"MeS
#include "stdafx.h" }1rvM4{/+f
#include "Capture.h" i/:5jI|
#include "CaptureDlg.h" ?Y!^I2Y6
#include <windowsx.h> @W [{2d
#pragma comment(lib,"hook.lib") i_YW;x
#ifdef _DEBUG 97x%2.\:
#define new DEBUG_NEW ;tN4HiN
#undef THIS_FILE [`bZ5*&
static char THIS_FILE[] = __FILE__; *SGlqR['\e
#endif D{svR-~T
#define IDM_SHELL WM_USER+1 z_)`g`($
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); z+6QZQk
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); BQU/Qo DY
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; pDhY%w#
class CAboutDlg : public CDialog lu3.KOD/
{ foyB{6q8
public: {*__B} ,N
CAboutDlg(); 8|vld3;
// Dialog Data ruHrv"29
//{{AFX_DATA(CAboutDlg) .WO/=#O
enum { IDD = IDD_ABOUTBOX }; Z3n~&!
//}}AFX_DATA V#H8d_V
// ClassWizard generated virtual function overrides f#mx:Q.7I
//{{AFX_VIRTUAL(CAboutDlg) a8NVLD>7}
protected: =jG?v'X
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support G:hU{S7
//}}AFX_VIRTUAL a],h<wGEx
// Implementation d"!yD/RD
protected: l qXc
//{{AFX_MSG(CAboutDlg) Ge~,[If+
//}}AFX_MSG %ph"PR/t?
DECLARE_MESSAGE_MAP() 7%tR&F -u
}; THr8o V5
c'~[!,[b<
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
Ut':$l=
{ ~%KM3Vap
//{{AFX_DATA_INIT(CAboutDlg) 9RB`$5F;
//}}AFX_DATA_INIT '2wCP
EC
} -4%]QS
<4sj@C
void CAboutDlg::DoDataExchange(CDataExchange* pDX) n`QO(pZ6+
{ $"1pws?d
CDialog::DoDataExchange(pDX); `;}H%
//{{AFX_DATA_MAP(CAboutDlg) q'2`0MRa
//}}AFX_DATA_MAP 9^p32G
} ,N0uR@GN
a.CF9m5]c
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) D8EeZUqU
//{{AFX_MSG_MAP(CAboutDlg) 5Fr;
// No message handlers A ~XOK;sB
//}}AFX_MSG_MAP >.LgsMRIKi
END_MESSAGE_MAP() RCQAtBd
e|~C?Ow'J
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) QK'`=MU
: CDialog(CCaptureDlg::IDD, pParent) u'=(&><
{ TIETj~+
//{{AFX_DATA_INIT(CCaptureDlg) 0 S2v"(_T
m_bControl = FALSE; >KKeV(Ur
m_bAlt = FALSE; g?gqkoI
m_bShift = FALSE; + q
l
m_Path = _T("c:\\"); iT[oKD0)
m_Number = _T("0 picture captured."); jwq\stjD
nCount=0; S$\.4*_H\
bRegistered=FALSE; ;raz6DRO
bTray=FALSE; W?=$V>)
//}}AFX_DATA_INIT 7Zo&+
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 PE|PwqX
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); zw,-.fmM#
} 5^b i
7J
b h*^{
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) `,Xb8^M2
{ xl3zy~;M
CDialog::DoDataExchange(pDX); -E}>h[;qZ
//{{AFX_DATA_MAP(CCaptureDlg) au,jAk
DDX_Control(pDX, IDC_KEY, m_Key); 8H7O/n
DDX_Check(pDX, IDC_CONTROL, m_bControl); /MhS=gVxM
DDX_Check(pDX, IDC_ALT, m_bAlt); HLM;EZ
DDX_Check(pDX, IDC_SHIFT, m_bShift); f.J9) lfb
DDX_Text(pDX, IDC_PATH, m_Path); TZ:34\u
DDX_Text(pDX, IDC_NUMBER, m_Number); +8^5C,V
//}}AFX_DATA_MAP 5St`@
} 2+,5p
|7]?>-
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) Yg[ v/[]
//{{AFX_MSG_MAP(CCaptureDlg) =w?M_[&K)
ON_WM_SYSCOMMAND() ^l--zzO8l
ON_WM_PAINT() zuk"
ON_WM_QUERYDRAGICON() cxY$LY!zX
ON_BN_CLICKED(ID_ABOUT, OnAbout) RZW$!tyI=
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) %3rTQ:X
ON_BN_CLICKED(ID_CHANGE, OnChange) r)OO&. P@j
//}}AFX_MSG_MAP oPCrD.s
END_MESSAGE_MAP() F OeVRq:#
"Wo.8
BOOL CCaptureDlg::OnInitDialog() Y~:}l9Qs
{ AfUZO^<
CDialog::OnInitDialog(); qQL.c+%L
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); 5dqQws-,?1
ASSERT(IDM_ABOUTBOX < 0xF000); 8^8>qSD1
CMenu* pSysMenu = GetSystemMenu(FALSE); gxI&f
if (pSysMenu != NULL) ~:T3|
{ r }ZLf
CString strAboutMenu; ^p$1D
strAboutMenu.LoadString(IDS_ABOUTBOX); L{Q4=p,A
if (!strAboutMenu.IsEmpty()) pF|8OB%
{ *wViH
pSysMenu->AppendMenu(MF_SEPARATOR); jY rym-
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); ZH_FA
} bo&\3
} {,i=>%X*
SetIcon(m_hIcon, TRUE); // Set big icon `b#/[3
SetIcon(m_hIcon, FALSE); // Set small icon C/CN
'
m_Key.SetCurSel(0); kxygf9I!;
RegisterHotkey(); qx Wgt(Os
CMenu* pMenu=GetSystemMenu(FALSE); IY V-*/
|
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); 3T"#T&eL
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); HmhUc,EC
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); /X@7ju;
return TRUE; // return TRUE unless you set the focus to a control O;UiYrXU
} 8n;kK?
2dXU0095
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) &}>|5>cJu
{ ri"?,}(
if ((nID & 0xFFF0) == IDM_ABOUTBOX) -T 2~W!
{ O|?Z~
CAboutDlg dlgAbout; ?E%U|(S)=L
dlgAbout.DoModal(); &aY/eD
} #!w:_T%
else {An8/"bv}
{ 6
M*b 6
CDialog::OnSysCommand(nID, lParam); >sn"
} 4xv9a;fP
} P)Z/JHB
|.y>[+Qb*
void CCaptureDlg::OnPaint() \nC5 ,Rz
{ :/>7$)+
if (IsIconic()) BO8%:/37[4
{ cC b>zI
CPaintDC dc(this); // device context for painting ;>inT7?3|
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); 9@(O\ xr
// Center icon in client rectangle 5tN%a>D%
int cxIcon = GetSystemMetrics(SM_CXICON); Bh\
[CY
int cyIcon = GetSystemMetrics(SM_CYICON); g!p+rq_f
CRect rect; sVE>=0TVP
GetClientRect(&rect); Z~duJsH
int x = (rect.Width() - cxIcon + 1) / 2; %|#P&`
int y = (rect.Height() - cyIcon + 1) / 2; P=f<#l"v
// Draw the icon F"-S~I7'L
dc.DrawIcon(x, y, m_hIcon);
NdM}xh
} p^p'/$<6_
else 2dv|6p
{ U#8\#jo
CDialog::OnPaint(); D9}d]9]$
} "B3iX@C
} eA~J4k_
K{,
W_^
HCURSOR CCaptureDlg::OnQueryDragIcon() ^fA3<|
{ JOA%Y;`<#
return (HCURSOR) m_hIcon; :X3rd|;kc
} ^ze@#Cp
j'G"ZPw1
void CCaptureDlg::OnCancel() !JT<(I2
{ gUksO!7^1
if(bTray) R g%R/p)C
DeleteIcon(); hp?ad
CDialog::OnCancel(); &i4
(s%z#
}
rE/}hHU
=@bXGMsV!
void CCaptureDlg::OnAbout() Q{%HW4lg
{ o@qN#Mg?>}
CAboutDlg dlg; uU8*$+ "
dlg.DoModal(); g]N'6La
} }kItVx
f8WI@]1F
void CCaptureDlg::OnBrowse() ;!=i|"PG
{ G9am}qr
CString str; oD9L5c)
BROWSEINFO bi; Dm}M8`|X
char name[MAX_PATH]; zkqn>
ZeroMemory(&bi,sizeof(BROWSEINFO)); |N)),/R_
bi.hwndOwner=GetSafeHwnd(); |*b-m k
bi.pszDisplayName=name; 3OKs?i3A
bi.lpszTitle="Select folder"; \o72VHG66
bi.ulFlags=BIF_RETURNONLYFSDIRS; ]auqf
LPITEMIDLIST idl=SHBrowseForFolder(&bi); !\BM
if(idl==NULL) v.4G>0 0^
return; n53c}^
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); 3HuGb^SNg
str.ReleaseBuffer(); wD$UShnm9-
m_Path=str; E8R;S}PA
if(str.GetAt(str.GetLength()-1)!='\\') S-3hLw&?
m_Path+="\\"; RjgJIVm(
UpdateData(FALSE); :?y Ma$
} +?Cy8Ev?
YAeF*vP
void CCaptureDlg::SaveBmp() _/%,cYVc8!
{ }a9G,@:k
CDC dc; "lt5gu! `u
dc.CreateDC("DISPLAY",NULL,NULL,NULL); :/Es%z
D
CBitmap bm; >mR8@kob<
int Width=GetSystemMetrics(SM_CXSCREEN); v2:i'j6
int Height=GetSystemMetrics(SM_CYSCREEN); $?k]KD
bm.CreateCompatibleBitmap(&dc,Width,Height); ZMiOKVl
CDC tdc; D `V.gV]
tdc.CreateCompatibleDC(&dc); u,d5/`E
CBitmap*pOld=tdc.SelectObject(&bm); `]@=Hx(
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); 6@8z3JW.A
tdc.SelectObject(pOld); U~"Y8g#qgy
BITMAP btm; ,=[%#gS
bm.GetBitmap(&btm); fn5-Tnsq*
DWORD size=btm.bmWidthBytes*btm.bmHeight; /Yg&:@L
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); S ++~w9}
BITMAPINFOHEADER bih; Yc_(g0NK
bih.biBitCount=btm.bmBitsPixel; H=f|X<8
bih.biClrImportant=0; )i[Vq|n
bih.biClrUsed=0; -TG ="U
bih.biCompression=0; b8YdONdy
bih.biHeight=btm.bmHeight; Fzt?M
bih.biPlanes=1; )$df6sq
bih.biSize=sizeof(BITMAPINFOHEADER); 3/ }
bih.biSizeImage=size; Qr7v^H~E4.
bih.biWidth=btm.bmWidth; 0x]?rd+q8Q
bih.biXPelsPerMeter=0; hh%?E\qM
bih.biYPelsPerMeter=0; f^u-Myk
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); $7g+/3Fu^
static int filecount=0; f38e(Q];m
CString name; 6'@ {
*
u
name.Format("pict%04d.bmp",filecount++); x{<l8vL=-c
name=m_Path+name; E!mv}
BITMAPFILEHEADER bfh; 'x"(OdM:[
bfh.bfReserved1=bfh.bfReserved2=0; 2=0HQXXrq
bfh.bfType=((WORD)('M'<< 8)|'B'); 'U`;4AN
bfh.bfSize=54+size; w=rD8@
bfh.bfOffBits=54; u-4@[*^T$
CFile bf; DC-d@N+
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ CAs:>s
'8
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); a\}MJ5]
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER));
xz5A[)N
bf.WriteHuge(lpData,size); zUv#%Q8vw
bf.Close(); 6},[HpXRc4
nCount++; |m
?ZE:
} ^w.]1x
GlobalFreePtr(lpData); G\;6n
if(nCount==1) xb9+- {<J
m_Number.Format("%d picture captured.",nCount); S 593wfc
else g; ]'
m_Number.Format("%d pictures captured.",nCount); 1TGRIe)
UpdateData(FALSE); 73Jm
} fCJjFL:
[?KGLUmTAI
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) 5~ :/%+F0=
{ B,w
ZI4oi*
if(pMsg -> message == WM_KEYDOWN) 3+h3?
{ 'EXx'z;/#
if(pMsg -> wParam == VK_ESCAPE) |b.xG_-s1
return TRUE; bP#!U'b" =
if(pMsg -> wParam == VK_RETURN) HBtk)
return TRUE; PS[ C!s&KE
} }58MDpOF1
return CDialog::PreTranslateMessage(pMsg); \I523$a
} !%('8-x%
5ct&fjmR_
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 4m1r@
$
{ KAFR.h:p9
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ ~tW~%]bs2Q
SaveBmp(); mOn_#2=KF
return FALSE; zp1ym}9M
} ` K{k0_{
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ ';/J-l/SE
CMenu pop; /YF:WKr2
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); 'D
?o^
CMenu*pMenu=pop.GetSubMenu(0); oR=i5lAU
pMenu->SetDefaultItem(ID_EXITICON); |.UY'B
CPoint pt; Q^rR }Ws
GetCursorPos(&pt); Hy[: _E
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); M%!;5
if(id==ID_EXITICON) D5?8`U
m=
DeleteIcon(); n%J=!z3
else if(id==ID_EXIT) BrwC9:
OnCancel(); k_0@,b3
return FALSE; !#O[RS
} Hn(1_I%zF
LRESULT res= CDialog::WindowProc(message, wParam, lParam); AO|9H`6U6F
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) o5F:U4sG
AddIcon(); `**{a/3
return res; R5 4[U
} X(nyTR8
K=v:qY4Z
void CCaptureDlg::AddIcon() ?[NC}LC
{ "yaxHd
NOTIFYICONDATA data; y-1e(:GF
data.cbSize=sizeof(NOTIFYICONDATA); *<