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:
>!1.
25[I=ZdS 一、实现方法
MsGM5(r:b .:QLk&a,:, 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:
aL&7 1^R, ,1CIBFY #pragma data_seg("shareddata")
!XCm>]R HHOOK hHook =NULL; //钩子句柄
xZwLlY UINT nHookCount =0; //挂接的程序数目
|! E)GahM static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
NI
[
pp` static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
9g"2^^wD static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
i||]V*5n static int KeyCount =0;
)MchsuF< static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
}n2M G #pragma data_seg()
],a 5)kV TS9|a{j3! 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。
Yqi4&~?db B1C-J/J 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:
d]6#m'U O7<]U_"I BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
.1Al<OLL cKey,UCHAR cMask)
[t@Mn {
wlk4*4dKn BOOL bAdded=FALSE;
L(-b@Joh for(int index=0;index<MAX_KEY;index++){
5Qn
' if(hCallWnd[index]==0){
5}]"OXQ hCallWnd[index]=hWnd;
v,{yU\) HotKey[index]=cKey;
=~H<Z LE+ HotKeyMask[index]=cMask;
kep/+J-u bAdded=TRUE;
j=aI9p KeyCount++;
DLMM/WJg@ break;
uIZ -#q }
o`P%& }
\GZM&Zd return bAdded;
Ksj -zR; }
z'\_jaj^ //删除热键
{~sDYRX BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
A}N?/{y)G {
SY^t} A7:/ BOOL bRemoved=FALSE;
7KL v6]b for(int index=0;index<MAX_KEY;index++){
P5nO78 if(hCallWnd[index]==hWnd){
]?
g@jRs if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
?_vakJ
) hCallWnd[index]=NULL;
2Yn <2U/^R HotKey[index]=0;
$?<Z!*x HotKeyMask[index]=0;
.=;3d~.] bRemoved=TRUE;
tlqiXh< KeyCount--;
DSk/q-'u break;
N<|Nwq:NN }
lWc:$qnR-K }
)V6Hl@v }
Id|L`
w return bRemoved;
C=It* j55 }
7/f3Z1g S.m{eur!,E ,J>5:ht(6 DLL中的钩子函数如下:
WDPb!-VT .my0|4CQ#@ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
|>htvDL {
LBsluT BOOL bProcessed=FALSE;
>>o dZL if(HC_ACTION==nCode)
OJ$]V,Z00x {
J/GSceHF if((lParam&0xc0000000)==0xc0000000){// 有键松开
$[&*Bj11Yg switch(wParam)
G<f@#[$' {
a]/>ra5{ case VK_MENU:
vbBc}G"w MaskBits&=~ALTBIT;
FCuB\Q break;
\r,Q1n?7
case VK_CONTROL:
2.zsCu4lj. MaskBits&=~CTRLBIT;
+W\f(/ q0 break;
/8g^T") case VK_SHIFT:
Q&g^c2 MaskBits&=~SHIFTBIT;
d%,eZXg' break;
pDcjwlA% default: //judge the key and send message
7cO n9fIE break;
U($dx.`v# }
H_ox_
u} for(int index=0;index<MAX_KEY;index++){
Nkl_Ho, if(hCallWnd[index]==NULL)
@$c\dvO continue;
^!z[t\$ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
<$~mE9a6 {
i Ae<&Ms SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
\\7ZWp\fN bProcessed=TRUE;
YmgLzGk` }
xJZ>uTN }
<'Wo@N7 }
J<maQ6p else if((lParam&0xc000ffff)==1){ //有键按下
>U*T0FL7 switch(wParam)
(egzH? {
D'A/wG case VK_MENU:
!@'6)/ MaskBits|=ALTBIT;
Mo @C9Y0 break;
K7W6ZH9; case VK_CONTROL:
/)(#{i* MaskBits|=CTRLBIT;
;Tc`}2 break;
;R?I4}O#R8 case VK_SHIFT:
cwWodPNm MaskBits|=SHIFTBIT;
2e9es break;
fKeT~z{~ default: //judge the key and send message
q**G(}K break;
D]~MC }
ANSFdc for(int index=0;index<MAX_KEY;index++){
KiOcu=F if(hCallWnd[index]==NULL)
:WL'cJ9a continue;
me ks
RcF if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
mP P`xL?T {
p>;_e( SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
`zXO_@C bProcessed=TRUE;
u[/m|z }
q]N:Tpm9 }
D{4YxR
PX }
)!:Lzi if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
lBFMwJU) for(int index=0;index<MAX_KEY;index++){
q^L<X) if(hCallWnd[index]==NULL)
p4i]7o@ continue;
16i"Yg!* if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
J8)#PY[i4 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
P7MeX(Tay //lParam的意义可看MSDN中WM_KEYDOWN部分
z0*_^MH }
}HYjA4o\A }
jR#~I@q^ }
_({A\}Q| return CallNextHookEx( hHook, nCode, wParam, lParam );
mJ`A_0 }
G0;XaL: _}VloiY 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
)V:]g\t
n>`as BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
/'DsB%7g BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
YH_7=0EJ {aC!~qR 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
Eb>78k(3I) B0!"A LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
jDN ]3Y` {
`o?Ph&p} if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
1=a>f"cyf {
+_xOLiu
//lParam表示是按下还是松开,如果有多个热键,由wParam来区分
1`9xIm*9w SaveBmp();
!i%"7tQ3$ return FALSE;
UaV iI/ks }
{TRsd …… //其它处理及默认处理
z)=+ F] }
XNb ZNaAd F.=Bnw/- GSQ/NYK 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。
u% n*gcY b-*3 2Y% 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。
^ Dt#$Z lmSo8/%T 二、编程步骤
=)`
p_W 9{8GP 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";
$gM8{.! <K4,7J$}h 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
ZzBQe STw#lU) %( 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;
zf>5,k'x'A FwZ>{~?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;
~/ilx#d ^F"iP7 5、 添加代码,编译运行程序。
@*DyZB -+em!g' 三、程序代码
'EfR|7m 4r0b)Y&I ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
Yl$SW;@ #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
g@Qgxsyk> #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
LW:LFzp #if _MSC_VER > 1000
D^;*U[F? #pragma once
.*JA!B #endif // _MSC_VER > 1000
F5qFYL; #ifndef __AFXWIN_H__
AkT<2H|4 #error include 'stdafx.h' before including this file for PCH
_:B1_rz7, #endif
rzI|?QaPi #include "resource.h" // main symbols
5rV(( class CHookApp : public CWinApp
l?)ZJ3]a {
3QOUU,Dt$ public:
a9?y`{%L CHookApp();
?kz+R' // Overrides
^p/Ob'! // ClassWizard generated virtual function overrides
N9<Ujom //{{AFX_VIRTUAL(CHookApp)
h}Wdh1.M3 public:
1uk0d`JL virtual BOOL InitInstance();
3o|I[!2. virtual int ExitInstance();
,mL
!(US //}}AFX_VIRTUAL
~b|`'kU //{{AFX_MSG(CHookApp)
1I}b|6
` // NOTE - the ClassWizard will add and remove member functions here.
`O8b1-1q~ // DO NOT EDIT what you see in these blocks of generated code !
:aIN9; //}}AFX_MSG
%D`,k*X DECLARE_MESSAGE_MAP()
*VkgQ`c };
' 2-oh LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
OcSEo7W BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
Q!FLR>8 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
#s%-INcR BOOL InitHotkey();
?<yM7O,4 BOOL UnInit();
@&hnL9D8lL #endif
;|cTHGxbE rBN)a" //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
G^1b>K #include "stdafx.h"
"uPy,<l #include "hook.h"
`:G% #include <windowsx.h>
z>[tF5 #ifdef _DEBUG
5')8r';, #define new DEBUG_NEW
9ElCg" #undef THIS_FILE
uGl| pJ\y= static char THIS_FILE[] = __FILE__;
@E53JKYhY #endif
nB ". '= #define MAX_KEY 100
Jj^GWZRu #define CTRLBIT 0x04
w_iam qe, #define ALTBIT 0x02
CC3v%^81l^ #define SHIFTBIT 0x01
l#wdpD a{ #pragma data_seg("shareddata")
h
!(>7/Gi HHOOK hHook =NULL;
zK+52jhi UINT nHookCount =0;
OW(&s,|6x static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
Ih[+K#t+E static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
Zzl,gy70 static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
-)y%~Zn static int KeyCount =0;
ib0g3p-Lc static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
#9LzY
#pragma data_seg()
ksjUr 1o HINSTANCE hins;
jAsO8 void VerifyWindow();
t%r :4, BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
?oiKVL"7 //{{AFX_MSG_MAP(CHookApp)
'~wpP=<yyF // NOTE - the ClassWizard will add and remove mapping macros here.
jRpdft // DO NOT EDIT what you see in these blocks of generated code!
2~;&g?T6 //}}AFX_MSG_MAP
0%;146.p END_MESSAGE_MAP()
^aRgMuU ~ekh1^evu CHookApp::CHookApp()
vY*\R0/a {
Yp4c'Zk // TODO: add construction code here,
*V;3~x! // Place all significant initialization in InitInstance
gK3Mms]}m }
- n6jG}01b RX2{g^V7 CHookApp theApp;
pD@zmCU LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
i$-#dc2qY {
sst,dA V$ BOOL bProcessed=FALSE;
>LF&EM] if(HC_ACTION==nCode)
!
qJI'+_ {
e^$j5jV if((lParam&0xc0000000)==0xc0000000){// Key up
H%z@h~s> switch(wParam)
.#5l$[' {
&}`K^5K|O: case VK_MENU:
aP>37s MaskBits&=~ALTBIT;
1{2eY%+C break;
!|m9| case VK_CONTROL:
! ]Mc4!E MaskBits&=~CTRLBIT;
\`,xgC9K break;
Ca $c; case VK_SHIFT:
RwTzz]
M MaskBits&=~SHIFTBIT;
X^@[G8v% break;
BZF,=v default: //judge the key and send message
}1%r%TikY break;
|[cdri^?D }
I&1!v8 for(int index=0;index<MAX_KEY;index++){
C/v}^#cLD if(hCallWnd[index]==NULL)
|&hU=J
o continue;
0D)`2W if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Z]-WFU_
N {
n!N\zx8 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
;~sr$6 bProcessed=TRUE;
mPVE?jnR^0 }
%TK&)Q% h5 }
O=jN&<rb }
DPJh5d else if((lParam&0xc000ffff)==1){ //Key down
MPRO
!45Z switch(wParam)
3^G96]E {
mT_GrIl[ case VK_MENU:
CJqc\I~ MaskBits|=ALTBIT;
E:VGji7s break;
<uF [, case VK_CONTROL:
_q Tpy)+ MaskBits|=CTRLBIT;
pX<a2FP break;
S>ugRasZ$ case VK_SHIFT:
Xi~9&ed#$i MaskBits|=SHIFTBIT;
BQjam+u6 break;
&P n] default: //judge the key and send message
Z|`fHO3j break;
=%h~/, }
nN ~GP"} for(int index=0;index<MAX_KEY;index++)
#Mi|IwL {
^&:'NR if(hCallWnd[index]==NULL)
O2H/rFx4 continue;
c)1=U_6 1 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
wR7aQg {
+(ny|r[# SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
p~bkf> bProcessed=TRUE;
3B,QJ& }
o?!uX|Fy }
9p>
/?H| }
KZK,w#9. if(!bProcessed){
s[-]cHQ for(int index=0;index<MAX_KEY;index++){
0:dB
9 if(hCallWnd[index]==NULL)
xYR#%! M continue;
vbn>mg5 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
a8h]n:! SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
jpO38H0) }
XZ:1!; }
9oq)X[ }
5V|tXsy: return CallNextHookEx( hHook, nCode, wParam, lParam );
*j<@yG2\gP }
t&"5dM\ RWahsJTu BOOL InitHotkey()
B/Ba5z"r$ {
#Si|! if(hHook!=NULL){
3Hm7
uBZ nHookCount++;
caD5Pod4 return TRUE;
,35Ag#va }
deM~[1e[ else
~N[|bPRmhE hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
3zb)"\(R if(hHook!=NULL)
#'NY}6cb$ nHookCount++;
KF$ %q(( return (hHook!=NULL);
R ]=SWE}U }
MhH);fn BOOL UnInit()
Z1]"[U[; {
q)Je.6$#X if(nHookCount>1){
WOH9%xv nHookCount--;
{U
P_i2`. return TRUE;
oYqE*mA }
\G=bj;&eF BOOL unhooked = UnhookWindowsHookEx(hHook);
\DyKtrnm% if(unhooked==TRUE){
gDhl- nHookCount=0;
/'+4vXc@ hHook=NULL;
0=,'{Vz}A }
&enlAV'#)O return unhooked;
s=\7)n=,M }
em/Xu 2B'^`>+8S BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
4JK@<GBK6 {
2))t*9;h BOOL bAdded=FALSE;
KW:r;BFx for(int index=0;index<MAX_KEY;index++){
y<uE-4 if(hCallWnd[index]==0){
Fc{((x s hCallWnd[index]=hWnd;
auA.6DQ HotKey[index]=cKey;
s7Qyfe&> HotKeyMask[index]=cMask;
83xd@-czgh bAdded=TRUE;
TA9dkYlE/ KeyCount++;
YUS?]~XC7x break;
T]X{@_
}
f<=^ 4a }
sKCGuw(mh return bAdded;
$Q,n+ / }
Hc
/wta ;.r2$/E BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Q^ q=!/qQ {
j%GbgJ BOOL bRemoved=FALSE;
{"\q(R0 for(int index=0;index<MAX_KEY;index++){
N
I3( if(hCallWnd[index]==hWnd){
7rPLnB] if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
PoY>5 hCallWnd[index]=NULL;
@d
P~X HotKey[index]=0;
}9FD/ HotKeyMask[index]=0;
o5V`'[c bRemoved=TRUE;
g`
kZT} h KeyCount--;
=jBL'|k5 break;
~W/}:;
}
Bx%=EN5. }
eAU"fu6d }
ev*c4^z:s return bRemoved;
,FS?"Ni }
T*p|'Q` ],$6&Cm void VerifyWindow()
=yo=q)W {
4&H+hN{3 for(int i=0;i<MAX_KEY;i++){
TVj1C if(hCallWnd
!=NULL){ dgm+U%E
if(!IsWindow(hCallWnd)){ &F86SrsI
hCallWnd=NULL; 4KZ SL:A
HotKey=0; \4C)~T:*
HotKeyMask=0; `GP3D~
KeyCount--; 7ia"u+Y
} ]P
JH'=
} I_K[!4~Kn
} fyGCfM
} t0+t9w/fTP
}1@n(#|c
BOOL CHookApp::InitInstance() [6tR&D#K
{ .k
p$oAL
AFX_MANAGE_STATE(AfxGetStaticModuleState()); ^]KIgGv\
hins=AfxGetInstanceHandle(); V_ {vZ/0e
InitHotkey(); 0U9+
return CWinApp::InitInstance(); s%FP6u7[i
} E]1\iV
$To4dJb
int CHookApp::ExitInstance() =tLU]
{ %{=4Fa(Jux
VerifyWindow(); b,zR5R^D;
UnInit(); ;;D%
l^m+
return CWinApp::ExitInstance(); |c]> Q
} 2c!h2$w
f*UBigk
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file S_`W@cp[
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) 'o7R/`4KR
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ `9]P/J^
#if _MSC_VER > 1000 'et(:}i
#pragma once q`h7H][(A
#endif // _MSC_VER > 1000 ryz/rf
]cS&8{ ^2
class CCaptureDlg : public CDialog IQo]9Lx
{ s_x=^S3~LO
// Construction iM4mkCdOO
public: 7^`RP e^a+
BOOL bTray; YAX #O\,
BOOL bRegistered; Y#GT*V
BOOL RegisterHotkey(); [>Ikitow
UCHAR cKey; axHxqhO7zp
UCHAR cMask; "[FCQ
void DeleteIcon(); 5ENov!$H
void AddIcon(); 4+BrTGp
UINT nCount; B'NS&7+].
void SaveBmp(); 9)1P+c--
CCaptureDlg(CWnd* pParent = NULL); // standard constructor i%#th'C!P
// Dialog Data 5R$=^gE
//{{AFX_DATA(CCaptureDlg) :Fw *r|
enum { IDD = IDD_CAPTURE_DIALOG }; ,P;8 }yQ
CComboBox m_Key; p{+tFQy
BOOL m_bControl; i.B$?cr~
BOOL m_bAlt; fp`U?S6
BOOL m_bShift; n5/ZJur
CString m_Path;
gvvFU,2
CString m_Number; 7
3H@kf
//}}AFX_DATA dOYlI`4
// ClassWizard generated virtual function overrides E!r4AjaC
//{{AFX_VIRTUAL(CCaptureDlg) ddGkk@CA
public: O8!!UA8V
virtual BOOL PreTranslateMessage(MSG* pMsg); l#mqV@?A~
protected: JDIz28 Ww
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support VGq{y{(
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); zS&7[:IRs'
//}}AFX_VIRTUAL =>E44v
// Implementation 2
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protected: [YL sEo=
HICON m_hIcon; WBIQ%XB'
// Generated message map functions (, ;MC/l
//{{AFX_MSG(CCaptureDlg) ][s*~VK;
virtual BOOL OnInitDialog(); >b[4
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); !pE>O-| K
afx_msg void OnPaint(); q8&4=eV\A
afx_msg HCURSOR OnQueryDragIcon(); H620vlC}V
virtual void OnCancel(); D/+@d:- G
afx_msg void OnAbout(); T\<M?`Y
afx_msg void OnBrowse(); NB~*sP-l&
afx_msg void OnChange(); p{('KE)
//}}AFX_MSG Br_3qJNVP
DECLARE_MESSAGE_MAP() 2b{@]Fp
}; ylo]`Nq
#endif roK4RYJ7)
AX!Md:s
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file <v1_F;{n
#include "stdafx.h" o(S^1j5
#include "Capture.h" B8P@D"u
#include "CaptureDlg.h" ?j},O=JFn
#include <windowsx.h> {EiG23!qV
#pragma comment(lib,"hook.lib") }WBm%f
#ifdef _DEBUG T%z!+/=&^
#define new DEBUG_NEW L%=BCmMx
#undef THIS_FILE ?dATMmT-
static char THIS_FILE[] = __FILE__; NK*:w *SOI
#endif VLl&>Pbe-
#define IDM_SHELL WM_USER+1 [U+<uZzOC
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); 2/a04qA#
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); 7~Xu71^3s
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; C5W- B8>
class CAboutDlg : public CDialog O V0cr
{ dNS9<8JX
public: R[2[[M
CAboutDlg(); 'Gm!Jblo@
// Dialog Data K~9 jin
//{{AFX_DATA(CAboutDlg) am)J'i,
enum { IDD = IDD_ABOUTBOX }; j$JV(fz
//}}AFX_DATA G5X|JTzpu<
// ClassWizard generated virtual function overrides g/J^K*3]
//{{AFX_VIRTUAL(CAboutDlg) <3J=;.\6
protected: d-_93
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support kG~ivB}x
//}}AFX_VIRTUAL "X!_37kQ
// Implementation -&HoR!af
protected: "1pZzad
//{{AFX_MSG(CAboutDlg) b W`)CWd
//}}AFX_MSG `s|\"@2
DECLARE_MESSAGE_MAP() k-t,y|N
}; f(zuRM^5
>ZOZv
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) ;9- 4J
{ 's%ct}y\J
//{{AFX_DATA_INIT(CAboutDlg) ir1RAmt%
//}}AFX_DATA_INIT Jq=>H@il
} Qcy+ {j]
;_;H(%uY
void CAboutDlg::DoDataExchange(CDataExchange* pDX) NEjBjLJZ
{ QRn:=J%W W
CDialog::DoDataExchange(pDX); 0[3tW[j
//{{AFX_DATA_MAP(CAboutDlg) Hr_x~n=w
//}}AFX_DATA_MAP ~>wq;T:=
} +O%a:d%
Qr xO
erp
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) yp7,^l
//{{AFX_MSG_MAP(CAboutDlg) Phjf$\pt
// No message handlers [eTck73
//}}AFX_MSG_MAP kdZ-<O7@
END_MESSAGE_MAP() Y7IlqC`i
2oNPR+
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CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) &~f*q?xR
: CDialog(CCaptureDlg::IDD, pParent) *?
orK o
{ kK_>*iCMo
//{{AFX_DATA_INIT(CCaptureDlg) 374_G?t&
m_bControl = FALSE; ;Ef)7GE@\[
m_bAlt = FALSE; /ux#U]x
m_bShift = FALSE; A&@jA5Jb
m_Path = _T("c:\\"); ;L/T}!Dx
m_Number = _T("0 picture captured."); m'vOFP)'
nCount=0; >G -?e!
bRegistered=FALSE; MYW 4@#
bTray=FALSE; OYCFx2{
//}}AFX_DATA_INIT 9dhFQWz"
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 YfYL?G
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); u8)r
W
} <\#
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void CCaptureDlg::DoDataExchange(CDataExchange* pDX) 6!Ap;O^*
{ d+wNGN
CDialog::DoDataExchange(pDX); R;I-IZS:
//{{AFX_DATA_MAP(CCaptureDlg) P+h<{%:*
DDX_Control(pDX, IDC_KEY, m_Key); l2_E6U"
DDX_Check(pDX, IDC_CONTROL, m_bControl); 5&7?0h+I
DDX_Check(pDX, IDC_ALT, m_bAlt); RM=+ZmA
DDX_Check(pDX, IDC_SHIFT, m_bShift); ~O3uje_
DDX_Text(pDX, IDC_PATH, m_Path); A_$Mt~qKi^
DDX_Text(pDX, IDC_NUMBER, m_Number); W,eKQV<j
//}}AFX_DATA_MAP "{1}
} */@bNT9BgO
XVK[p=cIL
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) T;vPR,]rz
//{{AFX_MSG_MAP(CCaptureDlg) &JzF
ON_WM_SYSCOMMAND() &-.eu
ON_WM_PAINT() lKD<
ON_WM_QUERYDRAGICON() b|C,b"$N0
ON_BN_CLICKED(ID_ABOUT, OnAbout) TuhL:
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) x#xO {
ON_BN_CLICKED(ID_CHANGE, OnChange) ?p\II7
//}}AFX_MSG_MAP 7m)ykq:?
END_MESSAGE_MAP() _|V+["IS
V,%5
hl'&
BOOL CCaptureDlg::OnInitDialog() %)@(Tye -
{ 4% .2=
CDialog::OnInitDialog(); Z.#glmw^=R
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); G"R>a w
ASSERT(IDM_ABOUTBOX < 0xF000); `x^,k%
:4
CMenu* pSysMenu = GetSystemMenu(FALSE); +c2=*IA/
if (pSysMenu != NULL) ^)K[1]"uM
{ ~k_zMU-1
CString strAboutMenu; MnsWB[
strAboutMenu.LoadString(IDS_ABOUTBOX); v-]-wNqT
if (!strAboutMenu.IsEmpty()) rsj}hS$
{ ]m,p3
pSysMenu->AppendMenu(MF_SEPARATOR); >]N0w
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); i!-sbwd7
} ,Onm!LI=
} lfG&V +S1
SetIcon(m_hIcon, TRUE); // Set big icon wtick~)
SetIcon(m_hIcon, FALSE); // Set small icon [~%;E[ky$
m_Key.SetCurSel(0); V$%Fs{
RegisterHotkey(); D,R2wNF
CMenu* pMenu=GetSystemMenu(FALSE); Hu!>RSg,,2
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); 7)X&fV6<8
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); &wC.?w$
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); Bc,z]
return TRUE; // return TRUE unless you set the focus to a control N=q29JU
} a5+v)F/=
[t\Mu}b
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) l.'E\3Bo
{ #NxvLW/
if ((nID & 0xFFF0) == IDM_ABOUTBOX) hA19:H=7R0
{ hLA=7
CAboutDlg dlgAbout; v=^)`C6Ma
dlgAbout.DoModal(); yxq!.72
} h |
else R$3+ 01j|
{ d-2I_ )9
CDialog::OnSysCommand(nID, lParam); qMj
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} e?fjX-
} KFrmH
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void CCaptureDlg::OnPaint() yodrX&"
{ OnJSu
z>-
if (IsIconic()) P+l^Ep8P
{ +:8YMM#9V
CPaintDC dc(this); // device context for painting Ceb i9R[
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); n8ya$bc
// Center icon in client rectangle Q&\ksM
int cxIcon = GetSystemMetrics(SM_CXICON); /JYi^rZ
int cyIcon = GetSystemMetrics(SM_CYICON); x1ex}_\
CRect rect; ,;& PKY
GetClientRect(&rect); 90I3_[Ii
int x = (rect.Width() - cxIcon + 1) / 2; yUlQPrNX
int y = (rect.Height() - cyIcon + 1) / 2; r>eXw5Pr7
// Draw the icon XfDQx!gJ
dc.DrawIcon(x, y, m_hIcon); <]`2H}*U'
} <GR: 5pJ%
else r+yLK(<zp
{ .Cd$=v6
CDialog::OnPaint(); HC}C_Q5c91
} b%$C!Tq'
} |"*:ZSj
No+zw% l0E
HCURSOR CCaptureDlg::OnQueryDragIcon() $h
f\ #'J
{ Nd)o1{I
return (HCURSOR) m_hIcon; ?*dx=UI
} ps
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j>M%?Tw
void CCaptureDlg::OnCancel() FkkB#Jk4
{ 0`=?ig_
if(bTray) $~\qoW<
DeleteIcon(); D(GHkS*0q
CDialog::OnCancel(); >FhBl\oIi
} X;g|-<
v2g+oKO]
void CCaptureDlg::OnAbout() Q:=/d$*xd
{ k9?+9bExXA
CAboutDlg dlg; 40ZB;j$l
dlg.DoModal(); 4 ETVyK|
} hQeZI+
?uv%E*TU
void CCaptureDlg::OnBrowse() 2F]MzeW
{ s os&
CString str; 34+}u,=
BROWSEINFO bi; Fb-TCq1y#
char name[MAX_PATH]; >iV(8EgBS
ZeroMemory(&bi,sizeof(BROWSEINFO)); IA!Kpg
W
bi.hwndOwner=GetSafeHwnd(); EeJ]>
1
bi.pszDisplayName=name; lvffQ_t
bi.lpszTitle="Select folder"; =Q/i<u
bi.ulFlags=BIF_RETURNONLYFSDIRS; exvsf|
LPITEMIDLIST idl=SHBrowseForFolder(&bi); zt6ep=
if(idl==NULL) aP gG+tu
return; $Q4b~
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); RT9@&5>il
str.ReleaseBuffer(); ^)I:82"|?
m_Path=str; d_hcv|%
if(str.GetAt(str.GetLength()-1)!='\\') [?2mt`g
m_Path+="\\"; c9
c Nlp
UpdateData(FALSE); Pl>t\`1:|A
} BO|Jrr>
=)LpMTz
void CCaptureDlg::SaveBmp() {5`?0+
{ =7>~u
CDC dc; l{g(z!
dc.CreateDC("DISPLAY",NULL,NULL,NULL); > kT~X ,o
CBitmap bm; c i>=45@J
int Width=GetSystemMetrics(SM_CXSCREEN); <hdCO<
0(
int Height=GetSystemMetrics(SM_CYSCREEN); *WG}K?"/
bm.CreateCompatibleBitmap(&dc,Width,Height); <NO~TBHF
CDC tdc; /;1FZ<zU
tdc.CreateCompatibleDC(&dc); /0(KKZ)
CBitmap*pOld=tdc.SelectObject(&bm); RB!E>]
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); nm.d.A/]Z
tdc.SelectObject(pOld); %{"STbO #>
BITMAP btm; hW&UG#PY>
bm.GetBitmap(&btm); hd' n"
DWORD size=btm.bmWidthBytes*btm.bmHeight; N0f}q1S<-A
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); m~A/.t%=
BITMAPINFOHEADER bih; t=#)3C`Q}
bih.biBitCount=btm.bmBitsPixel; I 3PnyNZ
bih.biClrImportant=0; PHkvt!uH
bih.biClrUsed=0; "AVc^>
bih.biCompression=0; !T)>q%@ai
bih.biHeight=btm.bmHeight; 3[4]G@
bih.biPlanes=1; P8f-&(
bih.biSize=sizeof(BITMAPINFOHEADER); mLSAi2Y
bih.biSizeImage=size; +l\Dp
bih.biWidth=btm.bmWidth; TrW3@@}j
bih.biXPelsPerMeter=0; R
>TtAm0N
bih.biYPelsPerMeter=0; @UX`9]-P
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); QNY{pk
static int filecount=0; )g9qkQ 8q
CString name; Yaqim<j
name.Format("pict%04d.bmp",filecount++); &XP 0
name=m_Path+name; "-sz7}Mb
BITMAPFILEHEADER bfh; 3 a`-_<
bfh.bfReserved1=bfh.bfReserved2=0; TEtZPGFl
bfh.bfType=((WORD)('M'<< 8)|'B'); B=7L+6
bfh.bfSize=54+size; WD:5C3;
bfh.bfOffBits=54; 9 )qx0
CFile bf; V'B 6C#jT
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ FgxQ}VvlH
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); 0Qz
\"gr
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); p*Cbe\
bf.WriteHuge(lpData,size); U<x3=P
bf.Close(); RD^o&