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:
RX'-99M
3qtr9NI 一、实现方法
SG:bM7*1' tjj^O%SV< 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:
'<7S^^ax 3y ryeS #pragma data_seg("shareddata")
)Vg2Jix,] HHOOK hHook =NULL; //钩子句柄
jq(qo4~; UINT nHookCount =0; //挂接的程序数目
x`2| }AP( static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
nLj&Uf& static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
L]I3P|y_ static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
o-z &7@3Hu static int KeyCount =0;
\, 8p1$G static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
Ql &0O27 #pragma data_seg()
^O)ve^P JB^Q\;$ 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。
$w)~xE5; ;#&fgj DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
-f9]v9|l *"cD.)]#2 BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
XK qK<!F cKey,UCHAR cMask)
MS*G-C {
WhFS2Jl0 BOOL bAdded=FALSE;
rA1qSG~c for(int index=0;index<MAX_KEY;index++){
rQJ"&CapT if(hCallWnd[index]==0){
K"\MU hCallWnd[index]=hWnd;
Hm
fXe HotKey[index]=cKey;
wzh]97b HotKeyMask[index]=cMask;
>.<ooWw bAdded=TRUE;
G 4qy*. KeyCount++;
&Jy)U break;
\G>ZkgU }
iY~rne"l }
,PECYwegkt return bAdded;
lZWK2 }
=X-Tcj?3g //删除热键
%WGuy@tL BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
MR$>!Nlp {
O>c$sL0g BOOL bRemoved=FALSE;
$*\L4<( for(int index=0;index<MAX_KEY;index++){
c2 *`2qK# if(hCallWnd[index]==hWnd){
j1q[c, if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
]6&$|2H?Ni hCallWnd[index]=NULL;
mI7~c;~ HotKey[index]=0;
DG[%Nhle HotKeyMask[index]=0;
#? ?%B bRemoved=TRUE;
PB9/m-\H KeyCount--;
oY=1C} break;
3A,rHYS }
he$XLTmr: }
X}cZxlqc }
}$kQs!# return bRemoved;
Puh$%;x }
aY)2eY ;AIc?Cg y&oNv
xG- DLL中的钩子函数如下:
tmJgm5v c|AtBgvf LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
BFVAw {
? 2#(jZ# 2 BOOL bProcessed=FALSE;
s-*._; if(HC_ACTION==nCode)
4woO;Gm {
iiG f'@/ if((lParam&0xc0000000)==0xc0000000){// 有键松开
8K{[2O7i) switch(wParam)
0Fw6Dq<8-! {
`f9gC3Hk case VK_MENU:
&aG*k* MaskBits&=~ALTBIT;
Xsuwa-G!5~ break;
z0bJ?~w, case VK_CONTROL:
iqwkARG" MaskBits&=~CTRLBIT;
Ai"-w" break;
mC[UXN/ case VK_SHIFT:
-*a?<ES` MaskBits&=~SHIFTBIT;
MCc$TttaVz break;
u~1o(Zn
= default: //judge the key and send message
oVOm_N break;
Zy0aJN> }
+4qU> for(int index=0;index<MAX_KEY;index++){
|Au ]1} if(hCallWnd[index]==NULL)
L}sx<=8.m continue;
zj|WZ=1*Wp if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
MYLsHIPC {
'+Xlw SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
Bs;|D bProcessed=TRUE;
PdeBDFWD }
JkQ\)^5v }
;V5yXNQ }
'5KeL3J; else if((lParam&0xc000ffff)==1){ //有键按下
3c3OG.H$8 switch(wParam)
&miexSNeF {
A,gEM4 case VK_MENU:
beXNrf=bG MaskBits|=ALTBIT;
sJG5/w break;
hk>;pU( case VK_CONTROL:
MJ{%4S{K,p MaskBits|=CTRLBIT;
)C%N]9FvY break;
kA wNly case VK_SHIFT:
sOU_j:A80; MaskBits|=SHIFTBIT;
[I;^^#'P break;
sEc;!L default: //judge the key and send message
%~xGkk"I break;
As&vFt P }
#Q"O4 b:8 for(int index=0;index<MAX_KEY;index++){
w
ej[+y- if(hCallWnd[index]==NULL)
\ I`p|&vG continue;
wzCUZ1N9q if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
u3 0s_\ {
28.~iw SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
xiblPF_n3 bProcessed=TRUE;
.TJEUK }
: 9t4s#. }
a->3`c }
|JF@6 if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
e8=YGx^o` for(int index=0;index<MAX_KEY;index++){
bM,1 f/^ if(hCallWnd[index]==NULL)
2";SJF'5\ continue;
a2 +~;{?g if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
J% H;%ROx SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
(la[KqqCO //lParam的意义可看MSDN中WM_KEYDOWN部分
U_G gCI) }
R(Kk{c:-@ }
KhbYr$ }
q.YfC return CallNextHookEx( hHook, nCode, wParam, lParam );
~]C%/gEh }
N_pUv Q Fm|-j 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:
p>v U?eF mTNB88p8^D BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
IuF_M<d, BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
Nes=;%&]G _PFnh)o 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:
mLV[uhq ) 0 W` LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
An*~-u9m {
`Z"Q^ if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
*Lqg=9kzr {
7JJ/D4uT //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
wIB`%V SaveBmp();
"XgmuSQ! return FALSE;
b89a)k>^g }
'B5^P …… //其它处理及默认处理
?S$i?\Qh }
7Z ;?b0W )rW&c-' {--0z3n> 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
U6E\AvbRn a,
Q#Dk 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
ZK;z m jHXwOJq
% 二、编程步骤
(Rt7%{* o2z]dTJ}o 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
%p^.|Me7 'H5M|c$s 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
WY^W.1X Q\ /uKQ 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;
M-)RQ-h 7>XDNI 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;
c;0Vs,DUmG j>Iaq" 5、 添加代码,编译运行程序。
=OIw*L8C"I qy)_wM 三、程序代码
BrRL7xX m5mu: ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
6 DG@?O #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
8r"+bhGx~ #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
xx{!3 F #if _MSC_VER > 1000
eW5SFY. #pragma once
Q+4tIrd+ #endif // _MSC_VER > 1000
h$eEn l} #ifndef __AFXWIN_H__
o<IAeH {+ #error include 'stdafx.h' before including this file for PCH
/~*_x=p: #endif
jZ`;Cy\<B #include "resource.h" // main symbols
v>z tB,,9 class CHookApp : public CWinApp
76hOB@ {
3rLTF\ public:
`w I /0 CHookApp();
!Z
VU,b> // Overrides
_iNq"8>2 // ClassWizard generated virtual function overrides
WJ<^E"^ //{{AFX_VIRTUAL(CHookApp)
z'T)=ycT public:
Zo1,1O virtual BOOL InitInstance();
,h"- virtual int ExitInstance();
bR@p<;G| //}}AFX_VIRTUAL
]smkTo/ //{{AFX_MSG(CHookApp)
qC
F5~;7 // NOTE - the ClassWizard will add and remove member functions here.
][}0#'/mV // DO NOT EDIT what you see in these blocks of generated code !
O G<,- 7 //}}AFX_MSG
c'/l,k DECLARE_MESSAGE_MAP()
'y8]_K* };
U9b?i$ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
.bBdQpF- BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
|rm g#;/D BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
{( r6e BOOL InitHotkey();
cwiX8e"3 BOOL UnInit();
45hF`b>%, #endif
=zQN[ %p%%~ewmx //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
q,
O$ %-70 #include "stdafx.h"
{s. = )0V #include "hook.h"
w]N!S;<N #include <windowsx.h>
%|s+jeUDn| #ifdef _DEBUG
tcxcup% #define new DEBUG_NEW
%iV^S!e #undef THIS_FILE
boDt`2= static char THIS_FILE[] = __FILE__;
fb^fVSh> #endif
]_N|L|]M #define MAX_KEY 100
95el'K[R #define CTRLBIT 0x04
>/|q:b^2r #define ALTBIT 0x02
/SYw;<= #define SHIFTBIT 0x01
<&C]sb #pragma data_seg("shareddata")
pK0"%eA HHOOK hHook =NULL;
O/[cpRe UINT nHookCount =0;
9B;{]c static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
oJN#C%r7 static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
7uzkp&+: static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
kc0E%odF.v static int KeyCount =0;
|i++0BU static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
Ub6jxib #pragma data_seg()
0_ 88V HINSTANCE hins;
T=ev[ mS void VerifyWindow();
x7O-Y~[2 BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
JtER_(. //{{AFX_MSG_MAP(CHookApp)
|\pbir // NOTE - the ClassWizard will add and remove mapping macros here.
#U14-^7 // DO NOT EDIT what you see in these blocks of generated code!
3Z1CWzq( //}}AFX_MSG_MAP
O({2ivX END_MESSAGE_MAP()
S]+:{9d K6R.@BMN CHookApp::CHookApp()
41&\mx
{
wmTb97o // TODO: add construction code here,
.9wk@C(Eh_ // Place all significant initialization in InitInstance
F6z%VWU }
;+ "+3 )ut&@] CHookApp theApp;
F w?[lS LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
M3.do^ss {
{.XEL BOOL bProcessed=FALSE;
YPxM<Gfa8 if(HC_ACTION==nCode)
.SWlp2!M5 {
9H]{g*kL if((lParam&0xc0000000)==0xc0000000){// Key up
7
qS""f7 switch(wParam)
_bNzXF {
hIT+gnhh case VK_MENU:
>7 ="8 MaskBits&=~ALTBIT;
&q9T9AOS break;
v/ _ case VK_CONTROL:
X(NLtO
w MaskBits&=~CTRLBIT;
6Yln,rC break;
?`?)QE8 case VK_SHIFT:
094o'k MaskBits&=~SHIFTBIT;
*WuID2cOI break;
%KLpig default: //judge the key and send message
2WdyxjQ break;
FYpzQ6s~ }
Abc)i7!.,. for(int index=0;index<MAX_KEY;index++){
V-BiF>+ if(hCallWnd[index]==NULL)
m^zUmrj[ continue;
fb~ytl< if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
HAa;hb {
yU*8|FQbP SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
YuO.yh_ bProcessed=TRUE;
tS6qWtE
}
vw9@v` k }
M!o##* *` }
iUN Ib else if((lParam&0xc000ffff)==1){ //Key down
VXwU?_4J. switch(wParam)
Vh4X%b$TV {
H:V2[y8\ case VK_MENU:
JJN.ugT}1 MaskBits|=ALTBIT;
9P+-#B break;
gDpVeBd[ case VK_CONTROL:
n"c[,k+R`U MaskBits|=CTRLBIT;
EFM5,gB.m break;
Iy&!<r7:]0 case VK_SHIFT:
,
K~}\CR MaskBits|=SHIFTBIT;
{ttysQ- break;
te-jfmu2 default: //judge the key and send message
?82xdpg break;
7fZDsj: }
=%TWX[w for(int index=0;index<MAX_KEY;index++)
9dx/hFA {
rD3v$B if(hCallWnd[index]==NULL)
<eWf< continue;
^'PWI{ O if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
xqu}cz {
K &N SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
(5-FV p
fb bProcessed=TRUE;
cQ
R]le%( }
]>5/PD,wWy }
s;ls qQk }
vg32y /l]S if(!bProcessed){
b gK}-EU for(int index=0;index<MAX_KEY;index++){
u0`S5? if(hCallWnd[index]==NULL)
T4Pgbop continue;
{8W'%\!=
if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
m;GCc8 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
wfLaRP }
?^al9D[:lz }
*Q
"wwpl? }
!Dn,^ return CallNextHookEx( hHook, nCode, wParam, lParam );
-lY6|79bF }
4O^xY
6m 8;JWK3Gv BOOL InitHotkey()
'-Vt|O_Q {
I 5^!y if(hHook!=NULL){
%]} nHookCount++;
| ATvS2 return TRUE;
-cAo@}v }
c(xrP/yOwi else
286jI7 T hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
Z 2V.3 if(hHook!=NULL)
L>Fa^jq5 nHookCount++;
Yg||{ return (hHook!=NULL);
Ga^"1TZ x }
iu=7O BOOL UnInit()
:(P9mt {
8e1UmM[ if(nHookCount>1){
3YOq2pW72G nHookCount--;
"*e$aTZB\ return TRUE;
#A JDWelD }
RbOUfD(J4 BOOL unhooked = UnhookWindowsHookEx(hHook);
U:0mp" if(unhooked==TRUE){
V^bwXr4f nHookCount=0;
{k
TEHe hHook=NULL;
p>v$FiV2N }
{EB;h\C return unhooked;
s+$ Q}|?u }
dy%;W% B9jC?I |` BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
vc;$-v$& {
KQ!8ks] BOOL bAdded=FALSE;
)Q&(f/LT for(int index=0;index<MAX_KEY;index++){
rr],DGg+B] if(hCallWnd[index]==0){
/~%&vpF-L
hCallWnd[index]=hWnd;
U]H#MiC! HotKey[index]=cKey;
) j#`r/ HotKeyMask[index]=cMask;
PUMXOTu] bAdded=TRUE;
2lH& KeyCount++;
3Ei#q+7 break;
BLQ 6A< }
{HltvO%8 }
>*
f-Wde return bAdded;
pP&7rRhw }
O:;w3u7;u c_$=-Khk BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
-P$PAg5"2 {
%rL.|q9
BOOL bRemoved=FALSE;
NX*Q F+ for(int index=0;index<MAX_KEY;index++){
O`IQ(,yef if(hCallWnd[index]==hWnd){
'T*&'RQr if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
dVtG/0 hCallWnd[index]=NULL;
pZ.ecZe/ HotKey[index]=0;
NvceYKp: HotKeyMask[index]=0;
S6Q bRemoved=TRUE;
WUn]F~Lt KeyCount--;
vxBgGl break;
e:DCej^z }
H(ARw'M }
~D j8z+^ }
'urafE4M return bRemoved;
l` lk-nb }
q_[o"wq/ %D{6[8 void VerifyWindow()
i
&nSh ]KK {
]g3JZF- for(int i=0;i<MAX_KEY;i++){
BO?%'\ if(hCallWnd
!=NULL){ zZPO&akB"
if(!IsWindow(hCallWnd)){ nV|EQs4(
hCallWnd=NULL; mp1@|*Sn
HotKey=0; Uiw2oi&_
HotKeyMask=0; 3wF;GG
KeyCount--; nfbR
P t
} l
^0@86
} @Md/Q~>
} hR?{3d#x2
} Mq156TL
hn
GZ=
BOOL CHookApp::InitInstance() e'NJnPO
{ ~w+c8c8pW
AFX_MANAGE_STATE(AfxGetStaticModuleState()); AlaW=leTe
hins=AfxGetInstanceHandle(); 5{X<y#vAC0
InitHotkey(); {UI+$/v#
return CWinApp::InitInstance(); y%cP1y)
} hE D}h![
g
wRZ%.Cn
int CHookApp::ExitInstance() `r6 ,+&
{ Q~
w|#
VerifyWindow(); Rsm^Z!sn
UnInit(); Vx u0F]%
return CWinApp::ExitInstance(); tCH!my_
} rpha!h>w1%
q"lSZ;
'E
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file -=Q*Ml#I
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) ~!d\^Z^i
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ 9s
q
#if _MSC_VER > 1000 V~3a!-m\
#pragma once s2V:cMXFn
#endif // _MSC_VER > 1000 L,/%f<wd
.W%)*&WH\
class CCaptureDlg : public CDialog b{&)6M)zo
{ M'O <h
// Construction ?dg[:1R}
public: Se}c[|8
BOOL bTray; j3V
-LnA
BOOL bRegistered; 194)QeoFw
BOOL RegisterHotkey(); CY5Z{qiX
UCHAR cKey; )mT<MkP
UCHAR cMask; S9y}
void DeleteIcon(); v@L;x [Q
void AddIcon(); U?Zq6_M&
UINT nCount; 6<QQ@5_
void SaveBmp(); @Cyvf5|bL
CCaptureDlg(CWnd* pParent = NULL); // standard constructor 4xje$/_d
// Dialog Data *w\W/ Y
//{{AFX_DATA(CCaptureDlg) $Ds2>G4c
enum { IDD = IDD_CAPTURE_DIALOG }; B~ GbF*j
CComboBox m_Key; ! n@KU!&k
BOOL m_bControl; N=}A Z{$
BOOL m_bAlt; 83_h J
BOOL m_bShift; 013x8!i
CString m_Path; #=A)XlZMd
CString m_Number; )7Wf@@R'F
//}}AFX_DATA AQvudx)@"
// ClassWizard generated virtual function overrides 6A-|[(NS
//{{AFX_VIRTUAL(CCaptureDlg) /W<;Z;zk
public: jV1.Yz(`
virtual BOOL PreTranslateMessage(MSG* pMsg); hMO=#up&
protected: wlqksG[B
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support ^6V[=!& H
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); yNBfUj -L
//}}AFX_VIRTUAL .Yn_*L+4*
// Implementation kn4`Fa;)O
protected: Bj;'qB>3
HICON m_hIcon; #q=Efn'
// Generated message map functions 583|blL
//{{AFX_MSG(CCaptureDlg) '-~~-}= sJ
virtual BOOL OnInitDialog(); 1>h]{%I
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); u&7[n_
afx_msg void OnPaint(); <\^8fn
afx_msg HCURSOR OnQueryDragIcon(); }Zn}
virtual void OnCancel(); aX'*pK/-
afx_msg void OnAbout(); sDlO#
afx_msg void OnBrowse(); %P|/A+Mg"
afx_msg void OnChange(); Z@!+v19^
//}}AFX_MSG mz0X3
DECLARE_MESSAGE_MAP() hRhe& ,v
}; YN F k
#endif <PH#[dH
htF] W|z
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file NZ0;5xGR
#include "stdafx.h" 2^nxoye
#include "Capture.h" 2E'UZ
m
#include "CaptureDlg.h" >|UOz&
#include <windowsx.h> fuySN!s
#pragma comment(lib,"hook.lib") Tyx_/pJT
#ifdef _DEBUG `X&gE,Ii
#define new DEBUG_NEW &V/MmmT
#undef THIS_FILE (O3nL.
static char THIS_FILE[] = __FILE__; t'ql[
#endif UP,c |
#define IDM_SHELL WM_USER+1 XXa|BZ1RX
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); H G^'I+Yn
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); AoxA+.O
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; !+v$)3u9
class CAboutDlg : public CDialog T_4/C2
{ ud('0r',D
public: 0 kW,I
CAboutDlg(); +CNv l
// Dialog Data g}c~ :p
//{{AFX_DATA(CAboutDlg) &tj!*k'
enum { IDD = IDD_ABOUTBOX }; Q*Pq{]0K
//}}AFX_DATA Ysv"
6b}
// ClassWizard generated virtual function overrides 'D1xh~
//{{AFX_VIRTUAL(CAboutDlg) . $vK&k
protected: +6+i!Sip
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support G4"F+%.
//}}AFX_VIRTUAL fz
"Y CHe
// Implementation Nj/
x. X
protected: F:S}w
//{{AFX_MSG(CAboutDlg) k8zI(5.>
//}}AFX_MSG UkFC~17P
DECLARE_MESSAGE_MAP() >^3i|PB
}; Qo|\-y-#
tKXIk9e
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) *s3/!K
{ 7@W>E;go
//{{AFX_DATA_INIT(CAboutDlg) X"eYK/7
//}}AFX_DATA_INIT {+>-7
9b
} r9?Mw06Wc5
JB<t6+"rD
void CAboutDlg::DoDataExchange(CDataExchange* pDX) Jln:`!#fDf
{ j#4kY R{
CDialog::DoDataExchange(pDX); o ^uA">GH
//{{AFX_DATA_MAP(CAboutDlg) ^U/O!GK
//}}AFX_DATA_MAP YGNP53CU
} N8df8=.kw
"3J}b?u_[
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) _|`S3}q|d
//{{AFX_MSG_MAP(CAboutDlg) wUJcmM;
// No message handlers r5^eNg k
//}}AFX_MSG_MAP k+*u/neh
END_MESSAGE_MAP() x]j W<A
UJ2U1H54h
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) xyXa .
: CDialog(CCaptureDlg::IDD, pParent) 4^<?Wq~
{ n+ M <\
//{{AFX_DATA_INIT(CCaptureDlg) ]6j{@z?{
m_bControl = FALSE; , W?VhO
m_bAlt = FALSE; #GFr`o0$^
m_bShift = FALSE; Tp2.VIoQ=
m_Path = _T("c:\\"); 1_G^w
qk
m_Number = _T("0 picture captured."); ))Za&S*<
nCount=0; :g/tZd$G5
bRegistered=FALSE; M"L=L5OH-
bTray=FALSE; }x,S%M-
//}}AFX_DATA_INIT apn*,7ps65
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 1|:KQl2q
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); UPGtj"2v-
} s5.CFA
*0ro0Z|Iq
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) :k#HW6p
{ #<xm.
CDialog::DoDataExchange(pDX); ^<6[.)
//{{AFX_DATA_MAP(CCaptureDlg) gRzxLf`K
DDX_Control(pDX, IDC_KEY, m_Key); VIbq:U
DDX_Check(pDX, IDC_CONTROL, m_bControl); E{vbO/|kf
DDX_Check(pDX, IDC_ALT, m_bAlt); rvM {M/4
DDX_Check(pDX, IDC_SHIFT, m_bShift); .6J$,.Ig
DDX_Text(pDX, IDC_PATH, m_Path); -nwypu
DDX_Text(pDX, IDC_NUMBER, m_Number); qe\5m.k
//}}AFX_DATA_MAP $/ ],tSm
} |uJ%5y#
Dha1/g1q
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) ;9#KeA _
//{{AFX_MSG_MAP(CCaptureDlg) ia?
c0xL
ON_WM_SYSCOMMAND() [G3E%z
ON_WM_PAINT() yt2PU_),
ON_WM_QUERYDRAGICON() 6L~n.5B~o
ON_BN_CLICKED(ID_ABOUT, OnAbout) E?@m?@*/
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) CvdN"k
ON_BN_CLICKED(ID_CHANGE, OnChange) : rVnc =k
//}}AFX_MSG_MAP cz$2R
END_MESSAGE_MAP() /mZE/>&~,
Zwx%7l;C
BOOL CCaptureDlg::OnInitDialog() !5N.B|Nt
{ St^5Byd<
CDialog::OnInitDialog(); xyxy`qR A
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); @(lh%@hO
ASSERT(IDM_ABOUTBOX < 0xF000); 7|H$ /]
CMenu* pSysMenu = GetSystemMenu(FALSE); }QmqoCAE~m
if (pSysMenu != NULL) _u Il
{ xYB{;K
CString strAboutMenu; ;F Eqe49
strAboutMenu.LoadString(IDS_ABOUTBOX); pK4)yu+
if (!strAboutMenu.IsEmpty()) 1.>m@Slr>
{ Tj- s4x
pSysMenu->AppendMenu(MF_SEPARATOR); O".=r}
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); QsW/X0YBv
} 1
TXioDs=_
} H;"4C8K7
SetIcon(m_hIcon, TRUE); // Set big icon cH)";]k*-
SetIcon(m_hIcon, FALSE); // Set small icon R|Q?KCI&
m_Key.SetCurSel(0); 8?C5L8)
RegisterHotkey(); 47B&s
CMenu* pMenu=GetSystemMenu(FALSE); 5-A\9UC*@
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); _VXN#@y
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); "gwSJ~:ds
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); *K;~!P
return TRUE; // return TRUE unless you set the focus to a control -n;}n:wL
} WY]s |2a
d"Y{UE
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) yCo.cd-
{ d d;T-wa}
if ((nID & 0xFFF0) == IDM_ABOUTBOX) fB,_9K5i
{ P'rb%W
CAboutDlg dlgAbout; @%SQFu@FJ
dlgAbout.DoModal(); P93@;{c(
} 6H|S;K+
else { xB3S_,8
{ jj>]9z
CDialog::OnSysCommand(nID, lParam); 3gf1ownC
} %
u6Sr5A[s
} b`_Q8 J
B7%U_F|m
void CCaptureDlg::OnPaint() FgO)DQm
{ #fM'>$N
if (IsIconic()) ,u!sjx
{ B/C,.?Or
CPaintDC dc(this); // device context for painting -K$)DvV^(E
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); wA.\i
// Center icon in client rectangle :@&/kyGH
int cxIcon = GetSystemMetrics(SM_CXICON); y?#
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int cyIcon = GetSystemMetrics(SM_CYICON); dqAw5[qMJ
CRect rect; eDB ;cN
GetClientRect(&rect); -{A<.a3P}=
int x = (rect.Width() - cxIcon + 1) / 2; J8D,ZfPN`d
int y = (rect.Height() - cyIcon + 1) / 2; o" SMbj
// Draw the icon GKCroyor
dc.DrawIcon(x, y, m_hIcon); 9!tW.pK5
} \j.:3Xr
else tg/H2p^Y
{ F1hHe<)
CDialog::OnPaint(); ^C%<l(b
} \Og+c%
} B-ESFATc
cj@koA'
HCURSOR CCaptureDlg::OnQueryDragIcon() DL.!G
{ 'f|o{
return (HCURSOR) m_hIcon; 3M=
} /7LR;>B j
ET >](l9
void CCaptureDlg::OnCancel() uIrG* K
{ |&jXp%4T
if(bTray) Rva$IX^]
DeleteIcon(); C.QO#b
CDialog::OnCancel(); a: K[ y
} CH/rp4NeSy
t>sE x:
void CCaptureDlg::OnAbout() "h ^Z
{ )CyS#j#=
CAboutDlg dlg; 2BobH_H
dlg.DoModal(); LIdF 0
} iR0y"Cii
O1kl70,`R
void CCaptureDlg::OnBrowse() ]{L jRSV
{ +^<](z
CString str; c"xK`%e
BROWSEINFO bi; \(T/O~b2
char name[MAX_PATH]; ,=N.FS
ZeroMemory(&bi,sizeof(BROWSEINFO)); k+4#!.HX^
bi.hwndOwner=GetSafeHwnd(); Cls%M5MH
bi.pszDisplayName=name; 07 $o;W@
bi.lpszTitle="Select folder"; '3H_wd
bi.ulFlags=BIF_RETURNONLYFSDIRS; [8*)8jP3
LPITEMIDLIST idl=SHBrowseForFolder(&bi); Xx(T">]vJ
if(idl==NULL) 3BLq CZ
return; M@ZI\
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); 9g?(BI^z
str.ReleaseBuffer(); s9d_GhT%-
m_Path=str; L_s:l9!r
if(str.GetAt(str.GetLength()-1)!='\\') uwBiW
m_Path+="\\"; IIqUZJ
UpdateData(FALSE); &"q=5e2
} Q5_o/wk
lNBL4yM
void CCaptureDlg::SaveBmp() M#[{>6>iE
{ 6`-jPR
CDC dc; ,?XCyHSgWW
dc.CreateDC("DISPLAY",NULL,NULL,NULL); bYPK h
CBitmap bm; 'Z |mQZN
int Width=GetSystemMetrics(SM_CXSCREEN); .>nRzgo
int Height=GetSystemMetrics(SM_CYSCREEN); 8sCv]|cn
bm.CreateCompatibleBitmap(&dc,Width,Height); EZ`{Wnbq
CDC tdc; RX5dO%
tdc.CreateCompatibleDC(&dc); 8KNZ](Dj
CBitmap*pOld=tdc.SelectObject(&bm); cs'{5!i]
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); 4'Zp-k?5`
tdc.SelectObject(pOld); OUXR
BITMAP btm; rXU\
bm.GetBitmap(&btm); DFTyMB1H
DWORD size=btm.bmWidthBytes*btm.bmHeight; \^%}M!tan
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); <