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:
kK&AK2
i\>?b)a> 一、实现方法
^= kr`5 '~{kR=+ 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:
2/))Y\~
4?_^7(%p #pragma data_seg("shareddata")
CQ{pv3) HHOOK hHook =NULL; //钩子句柄
/BS yanro UINT nHookCount =0; //挂接的程序数目
M3fTUCR static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
Q}^qu6 static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
I
'ha=PeVn static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
=+VDb5= TV static int KeyCount =0;
z
wn#E static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
:@Ml-ZE #pragma data_seg()
JGYJ;j{E] D4{<~/oBv 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。
LmKY$~5P 2H1?f|0> 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:
`Gg,oCQg Eb&=$4c= BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
Q ~eh_>" cKey,UCHAR cMask)
/RF&@NJE5 {
F:Yp1Wrb < BOOL bAdded=FALSE;
k]c$SzJ> / for(int index=0;index<MAX_KEY;index++){
bhKe"#m|S if(hCallWnd[index]==0){
wEl/s P hCallWnd[index]=hWnd;
K7,Sr1O ` HotKey[index]=cKey;
y+',jM HotKeyMask[index]=cMask;
Pp;OkI``[ bAdded=TRUE;
MdnapxuS KeyCount++;
FW4#/H break;
0c&DSL}6 }
Gl4f:` }
~kI$8oAry return bAdded;
i@=(Y~tD` }
Xk :_aJ //删除热键
`{ \)Wuw BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
DU@SXb {
'qoaMJxN` BOOL bRemoved=FALSE;
<I{Yyl^ for(int index=0;index<MAX_KEY;index++){
Rf!$n7& \ if(hCallWnd[index]==hWnd){
mW3IR3b if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
=)!~t/ hCallWnd[index]=NULL;
"!#KQ''R HotKey[index]=0;
yi<H }& HotKeyMask[index]=0;
Jb|dpu/e bRemoved=TRUE;
k7nke^,| KeyCount--;
dFk$rr>q break;
$L72%T }
C5TC@ w1* }
LP>GM=S#" }
dp }zG+ return bRemoved;
7\i> > }
&8JK^zQq :TP\pH 7E `cFNO: DLL中的钩子函数如下:
VP }To A ?[Wfq| LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
^5R2~ {
R E9`T BOOL bProcessed=FALSE;
I9sQPa if(HC_ACTION==nCode)
!dwa. lZ&X {
Bf$`Hf6 if((lParam&0xc0000000)==0xc0000000){// 有键松开
' $"RQ= switch(wParam)
5C5OLAl v {
!wo case VK_MENU:
G9~ 4?v6: MaskBits&=~ALTBIT;
fy>~GFk( break;
Yo}QW;,g case VK_CONTROL:
*$Z?Owl7 MaskBits&=~CTRLBIT;
Aot9^@4]) break;
nx5I case VK_SHIFT:
*dxE
( dP MaskBits&=~SHIFTBIT;
6&"GTK break;
pE{Ecrc3| default: //judge the key and send message
B#o6UO\ break;
$g
}aH(vf }
:;w#l"e7< for(int index=0;index<MAX_KEY;index++){
=DXN`]uN if(hCallWnd[index]==NULL)
4
udW6U continue;
ufocj1IU if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
4V'HPD>=V {
be
HEAQ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
E_#?;l> bProcessed=TRUE;
rs0Wy
}
^K:-r !v^ }
,-SWrp`f }
|+Tq[5&R else if((lParam&0xc000ffff)==1){ //有键按下
?:i,%]zxC switch(wParam)
lPg?Fk7AP {
~L"?C case VK_MENU:
=tc!"{ MaskBits|=ALTBIT;
ZDm Y${J break;
wAc;{60s] case VK_CONTROL:
bg^<e}{<H MaskBits|=CTRLBIT;
z6 .^a-sU5 break;
5a5)hmO RB case VK_SHIFT:
T1(*dVU? MaskBits|=SHIFTBIT;
CEBa,hp@ break;
/1b7f' default: //judge the key and send message
/sdZf|Zl break;
uP^u:'VjbH }
KESM5p"f for(int index=0;index<MAX_KEY;index++){
#@P0i^pFTB if(hCallWnd[index]==NULL)
f8)fm2^09 continue;
FQ u c}A if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
*eMMfxFl {
!iW>xo SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
8Y/1+- bProcessed=TRUE;
(P-$tHt }
y N,grU( }
@iN"]GFjS }
HmbQL2 if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
$#E!/vVwD7 for(int index=0;index<MAX_KEY;index++){
N{uVh;_ if(hCallWnd[index]==NULL)
ipS:)4QFxJ continue;
-[[(Zx if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
zxeT{AFPr? SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
wJh/tb=$o //lParam的意义可看MSDN中WM_KEYDOWN部分
?HeUU }
k&17 (Tv$ }
P[tYu: }
TrBW0Bn>p return CallNextHookEx( hHook, nCode, wParam, lParam );
4u#TKr. }
H^M>(kT#& @I#uv|=N 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+DIo7VTX 9^@)R
ED BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
bbT$$b- BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
6i%Xf i i ;^Ya 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:
Pk;YM} od^ylg>K LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
`i<Z<
<c> {
?@;#|^k9
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
PJ^qE|X {
J|`.d46 //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
w8a49 Fv SaveBmp();
\J;_%-Z return FALSE;
I:("f+
H }
z, n[}Q#u …… //其它处理及默认处理
5<YL^m{/L }
tTWEhHQ` 'UM *7 d{Owz&PL 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。
A#Y:VavQ? OsKtxtLO 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。
[pInF
Qh6 ^!gq_x 二、编程步骤
/i#";~sO 2+ywl}9 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";
5]n\E?V'L [v`kqL~ 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
uF<?y0t ~0@fK<C)O 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;
AWJA? QQv%>=_` 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;
<T&v\DN %`YR+J/V 5、 添加代码,编译运行程序。
[2E(3`-u Y=5P=wE 三、程序代码
3 FV -&Y F<XOt3VY. ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
n~.$iN #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
GxEShSGOE #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
wxYGr`f #if _MSC_VER > 1000
;a| ~YM2I #pragma once
ck\W'Y*Q7 #endif // _MSC_VER > 1000
iu3L9UfL[ #ifndef __AFXWIN_H__
+wf9!_' #error include 'stdafx.h' before including this file for PCH
5lM2nhlf'b #endif
Xj~%kPe #include "resource.h" // main symbols
~S\> F\v6' class CHookApp : public CWinApp
;#:AM; {
_W^;a public:
X0R EC% CHookApp();
e5
}amrz // Overrides
-:E~Z_J` // ClassWizard generated virtual function overrides
3R0ioi 7 //{{AFX_VIRTUAL(CHookApp)
$sS~hy* public:
w 5?D]u virtual BOOL InitInstance();
W/AF virtual int ExitInstance();
~]q>}/&YLo //}}AFX_VIRTUAL
e['<.Yf+ //{{AFX_MSG(CHookApp)
}1W@ // NOTE - the ClassWizard will add and remove member functions here.
8KYI Hw // DO NOT EDIT what you see in these blocks of generated code !
8QoxU"
c& //}}AFX_MSG
x0WinLQ DECLARE_MESSAGE_MAP()
i1!1'T8 };
A+3SLB LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
~clX2U8u` BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
}pIn3B) BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
D
<R_eK BOOL InitHotkey();
G? XS-oSv BOOL UnInit();
_^NyLI% #endif
t"Ah]sD FSn3p}FVa //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
6)7cw8^ #include "stdafx.h"
B(k tIy #include "hook.h"
imeE& #include <windowsx.h>
4QTHBT+2` #ifdef _DEBUG
kguZ AO6 #define new DEBUG_NEW
+@~WKa #undef THIS_FILE
aU^6FI static char THIS_FILE[] = __FILE__;
|<5F08]v #endif
6uT*Fg-G #define MAX_KEY 100
`j(._`8%a #define CTRLBIT 0x04
/R&h#;l #define ALTBIT 0x02
O1S7t)ag #define SHIFTBIT 0x01
zRou~Kxi #pragma data_seg("shareddata")
o+7)cI HHOOK hHook =NULL;
=/`]lY& UINT nHookCount =0;
oeB'{bG static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
Fxc_s/^=t static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
O^j*"#f static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
R TpNxr{[ static int KeyCount =0;
"RN]
@p#m static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
8-Y*b89 #pragma data_seg()
L!lmy&1 HINSTANCE hins;
P_w4
DU void VerifyWindow();
3%5a&b BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
p @nj6N.-- //{{AFX_MSG_MAP(CHookApp)
-5 D<zP/ // NOTE - the ClassWizard will add and remove mapping macros here.
%1.F;-GdsW // DO NOT EDIT what you see in these blocks of generated code!
YO$D- //}}AFX_MSG_MAP
f&mi nBU END_MESSAGE_MAP()
BdF/(Pg yCvtglAJ4 CHookApp::CHookApp()
S#?2E8 {
ninWnQq // TODO: add construction code here,
7HBf^N. // Place all significant initialization in InitInstance
&i(Ip'r }
KE@+I.x 5a$EXV CHookApp theApp;
Hd\V?#H LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
V`1{*PrI@L {
`SsoRPW&$ BOOL bProcessed=FALSE;
)Wr_*>xj if(HC_ACTION==nCode)
0hV#]`9`gN {
{;u,04OVK if((lParam&0xc0000000)==0xc0000000){// Key up
_X~O6e-! switch(wParam)
(8)9S6 {
BEvY&3%l case VK_MENU:
?'z/S5&j MaskBits&=~ALTBIT;
CV.|~K0O break;
%,_ZVgh0 case VK_CONTROL:
Xt<1b MaskBits&=~CTRLBIT;
lz~^*\ F break;
ekL;SN case VK_SHIFT:
wlJi_)! MaskBits&=~SHIFTBIT;
IBo break;
<D ~hhGb default: //judge the key and send message
T\uIXL?3 break;
W.MZN4= }
_huJ*W7lR for(int index=0;index<MAX_KEY;index++){
wW1VOj=6V" if(hCallWnd[index]==NULL)
E|"SMA, continue;
KE~Q88s if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Nw1*);b[y {
1+uZF SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
CTRUr" bProcessed=TRUE;
R~kO5jpW }
Hf?@<4
}
%m\:AK[} }
EXCE^Vw else if((lParam&0xc000ffff)==1){ //Key down
95z|}16UK switch(wParam)
L)J1yw {
JM,%|
E case VK_MENU:
_d5:Y MaskBits|=ALTBIT;
Y
b3ckktY break;
p%>sc case VK_CONTROL:
8%#8PLB2 MaskBits|=CTRLBIT;
X]p3?"7 break;
`}l%61n0 case VK_SHIFT:
=wdh#{ MaskBits|=SHIFTBIT;
R+Hu?Dv&F break;
|p&EP2?T default: //judge the key and send message
LJ/He[r|[ break;
S3ooG1 4Ls }
E5n7
< for(int index=0;index<MAX_KEY;index++)
]O"f % {
cQ j`W
* if(hCallWnd[index]==NULL)
|6JKB' continue;
LBCH7@V1yR if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
GHcx@||C? {
ZyUcL_ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
m7'<k1#"Y bProcessed=TRUE;
n9+33^ PT }
sX%n` L }
B@&sG
5ES }
Bdw33z*m if(!bProcessed){
djOjd, for(int index=0;index<MAX_KEY;index++){
3y}E*QE if(hCallWnd[index]==NULL)
d^aVP continue;
P[
:_"4U if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
g8##Be SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
51q|-d }
"CJ~BJI% }
_Hv+2E[4Z }
pX SShU# return CallNextHookEx( hHook, nCode, wParam, lParam );
4=([v;fc }
1 P!)4W
[P`e@$ BOOL InitHotkey()
#uhUZq {
2e1KF=N+ if(hHook!=NULL){
6WY/[TC- nHookCount++;
sE% $]Jp return TRUE;
Z
v@nK%#J }
o%t4WQ|bj else
qgrJi +WZ hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
U|}
?{x if(hHook!=NULL)
5[
zN M nHookCount++;
M,]|L c h return (hHook!=NULL);
k."p& }
."$t&[;s BOOL UnInit()
-eG~ {
2IJK0w@ if(nHookCount>1){
H{*Dc_ nHookCount--;
\;X7DK2 return TRUE;
+lx&$mr? }
@Dh2@2`> BOOL unhooked = UnhookWindowsHookEx(hHook);
FOXSs8"c]! if(unhooked==TRUE){
b5NVQ8Mq nHookCount=0;
SndR:{ hHook=NULL;
)!"fUz$ }
WTfjn|a return unhooked;
m\`>N_4*9 }
f jx`|MJ nqyD>> BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
,dIev< {
xqG<R5k>> BOOL bAdded=FALSE;
bE _8NA"2 for(int index=0;index<MAX_KEY;index++){
qiNVaV\wr| if(hCallWnd[index]==0){
8>v_th hCallWnd[index]=hWnd;
@sXv5kZ: HotKey[index]=cKey;
Al-`}g+^ HotKeyMask[index]=cMask;
:>1nkm&Eg bAdded=TRUE;
==dKC; KeyCount++;
YaC%69C' break;
FH~:&; }
!T`oHs }
dJ"M#X!Zu return bAdded;
|THpkfW }
:o'x?] o!M8V ^vW BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
4Z)s8sD KW {
|./mPV r BOOL bRemoved=FALSE;
p%Z:SZZ for(int index=0;index<MAX_KEY;index++){
+=3=% %?C if(hCallWnd[index]==hWnd){
6X \g7bg if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
<Y]LY_( hCallWnd[index]=NULL;
tk"+ u_u w HotKey[index]=0;
nuce(R HotKeyMask[index]=0;
X94a bRemoved=TRUE;
mJSfn"b}K KeyCount--;
c#n
2! break;
'FErk~}/4s }
%fj5;}E. }
6cH8Jr _ }
ORExI.<`W return bRemoved;
rW{!8FhI }
0pZvW VXeO}>2S void VerifyWindow()
EgjJywNhd2 {
\2\{c1df for(int i=0;i<MAX_KEY;i++){
y)G-6sZ/ if(hCallWnd
!=NULL){ -> cL)
if(!IsWindow(hCallWnd)){ >P/36'
hCallWnd=NULL; k#].nQG
HotKey=0; QZzamT)"
HotKeyMask=0; _ \D%
KeyCount--; w*qj0:i5as
} g>lZs
} ]S6Gz/4aV+
} ?KC(WaGJQ
} x)PW4{3qR
\9?[|m
z
BOOL CHookApp::InitInstance() 5n@YNaoIb
{ UqP{Cyy{
AFX_MANAGE_STATE(AfxGetStaticModuleState()); ]\(8d[4
hins=AfxGetInstanceHandle(); s4|\cY`b-
InitHotkey(); 7r:h_r-
return CWinApp::InitInstance(); '~[8>Q>
} 5J5?cs-!
]~TsmR[
int CHookApp::ExitInstance() XNz+a|cF
{ "aJHCi~l
VerifyWindow(); UL+Txc
UnInit(); 6D;N.wDZ
return CWinApp::ExitInstance(); SVCh!/qe\
} MGg(d
]fyfL|(;
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file V1aP_G-:
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) hOj{y2sc
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ G/_IY;
#if _MSC_VER > 1000 z(|^fi(
#pragma once 5ya9VZ5#
#endif // _MSC_VER > 1000 fkV@3sj
gaF6j!p
class CCaptureDlg : public CDialog o<G 9t6~
{ }9fa]D-a?
// Construction /_C2O"h
public: ?.~1%l !
BOOL bTray; &\h7E
BOOL bRegistered; 98[uRywI
BOOL RegisterHotkey(); B~Sj#(WEa
UCHAR cKey; &LLU@ |
UCHAR cMask; &uq.k{<p\
void DeleteIcon(); &K^0PzWWof
void AddIcon(); UC!mp?
UINT nCount; :#rP$LSYC
void SaveBmp(); '/d51
CCaptureDlg(CWnd* pParent = NULL); // standard constructor <FT7QO$I
// Dialog Data yJA~4
//{{AFX_DATA(CCaptureDlg) +}:Z9AAMy
enum { IDD = IDD_CAPTURE_DIALOG }; S$mv(C
CComboBox m_Key; ;+Jx,{)
BOOL m_bControl; 0Hnj<| HL
BOOL m_bAlt; 8D*7{Q
BOOL m_bShift; 1.3#PdMR,
CString m_Path; q
W(@p`
CString m_Number; M:+CW;||!
//}}AFX_DATA ,-UF5U
// ClassWizard generated virtual function overrides KOcB#UHJ
//{{AFX_VIRTUAL(CCaptureDlg) Bkcwl
public: z*.AuEK?
virtual BOOL PreTranslateMessage(MSG* pMsg); ^m\o(R
protected: Kd\0nf6
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 1/DtF
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); j\y;~
V
//}}AFX_VIRTUAL Ymut]`dX
// Implementation @C;1e7
protected: +f3Rzx]
HICON m_hIcon; opcanl9pSW
// Generated message map functions Hm-#Mpw
//{{AFX_MSG(CCaptureDlg) '/\
virtual BOOL OnInitDialog(); `+H=3`}X
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); A7p4M?09
afx_msg void OnPaint(); jv)+qmqo!
afx_msg HCURSOR OnQueryDragIcon(); bvox7V>
virtual void OnCancel(); 74%vNKzc~
afx_msg void OnAbout(); ~1G^IZ6
afx_msg void OnBrowse(); ptCF))Zm'
afx_msg void OnChange(); \:vF FK4a
//}}AFX_MSG WogUILB
DECLARE_MESSAGE_MAP() c{q+h V=
}; }Fe~XO`
#endif ;n&95t1$
8_Oeui(i
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file "j>X^vn
#include "stdafx.h" s^kG]7
#include "Capture.h" QoD_`d
#include "CaptureDlg.h" J/1kJ@5
#include <windowsx.h> ]H1mj#EWU
#pragma comment(lib,"hook.lib") #xIg(nG
#ifdef _DEBUG yD9enYM
#define new DEBUG_NEW Liqo)m
#undef THIS_FILE 3",gjXmBu
static char THIS_FILE[] = __FILE__; >* -IIo
#endif is.t,&H4P]
#define IDM_SHELL WM_USER+1 I%T+H[,
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); s:T%,xS
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); !3b& S4
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; :.:^\Q0
class CAboutDlg : public CDialog "x,lL
{ 8ro`lX*F@2
public: JE.$]){
CAboutDlg(); $AK
^E6
// Dialog Data PGTEIptX7
//{{AFX_DATA(CAboutDlg) q"d9C)Md
enum { IDD = IDD_ABOUTBOX }; 8hGyh#
//}}AFX_DATA y_X6{}Ke
// ClassWizard generated virtual function overrides oz!)x\m*H
//{{AFX_VIRTUAL(CAboutDlg) `z!AjAT-G
protected: o;8$#gyNY
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support =s\$i0A2
//}}AFX_VIRTUAL w{ja*F6
// Implementation _){|/Zd
protected: ~Ztn(1N
//{{AFX_MSG(CAboutDlg) +k`L8@a3&
//}}AFX_MSG KzHN|8$o
DECLARE_MESSAGE_MAP() [LVXXjkFI
}; |$WHw*F^
9*"
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) 1?'4%>kp
{ (UkP AE
//{{AFX_DATA_INIT(CAboutDlg) pqG>|#RG
//}}AFX_DATA_INIT x@#>l8k?
} ?2@^O=I
|rx5O5p
void CAboutDlg::DoDataExchange(CDataExchange* pDX) ;*%rFt9FK
{ %\'=Y/yP
CDialog::DoDataExchange(pDX); ;c 7I "?@z
//{{AFX_DATA_MAP(CAboutDlg) h,LSqjf"
//}}AFX_DATA_MAP 5U84*RY
} U,rI/'
J(1Tl
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) J""Cgf
//{{AFX_MSG_MAP(CAboutDlg) k1Y\g'1
// No message handlers E\iK_'#
//}}AFX_MSG_MAP ?P9aXwc
END_MESSAGE_MAP() f)sy-o!
.; MS78BR
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) 1RAkqw<E
: CDialog(CCaptureDlg::IDD, pParent) 1]xmOx[mb
{ ^ :VH?I=
//{{AFX_DATA_INIT(CCaptureDlg) CHnclT
m_bControl = FALSE; K V5
'-Sv1
m_bAlt = FALSE; &h:4TaD
m_bShift = FALSE; Bii'^^I;?
m_Path = _T("c:\\"); !vz'zy)7
m_Number = _T("0 picture captured."); hFV,FBsAO
nCount=0; r S@/@jKZE
bRegistered=FALSE; [6VB&
bTray=FALSE; Z`TfS+O6
//}}AFX_DATA_INIT 1/$PxQ
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 -2hirA<^
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); ! ._q8q\
} &}DfIP<
y##h(y
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) .}__XWK5
{ CW1l;uwtU
CDialog::DoDataExchange(pDX); 9p_?t'&>q
//{{AFX_DATA_MAP(CCaptureDlg) @a8lF$<
DDX_Control(pDX, IDC_KEY, m_Key); Tm"H9
DDX_Check(pDX, IDC_CONTROL, m_bControl); 0|e[o"
DDX_Check(pDX, IDC_ALT, m_bAlt); bQ*yXJ^8
DDX_Check(pDX, IDC_SHIFT, m_bShift); 4\z@Evm
DDX_Text(pDX, IDC_PATH, m_Path); IO)Y0J>x
DDX_Text(pDX, IDC_NUMBER, m_Number); qda 2
//}}AFX_DATA_MAP BA\aVhmx
} t<rIg1
F5?S8=i
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) :8b'HhjM
//{{AFX_MSG_MAP(CCaptureDlg) #Y5k/NPg
ON_WM_SYSCOMMAND() oU=vl!\J
ON_WM_PAINT() Y"FV#<9@7E
ON_WM_QUERYDRAGICON() /pMOinuO
ON_BN_CLICKED(ID_ABOUT, OnAbout) 66val"^W
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) [Uup5+MCv
ON_BN_CLICKED(ID_CHANGE, OnChange) EL,k z8
//}}AFX_MSG_MAP ztVTXI%Kz
END_MESSAGE_MAP() 5=o ^/Vkc
/,G `V
BOOL CCaptureDlg::OnInitDialog() TPp]UG
{ M+ [ho]
CDialog::OnInitDialog(); 1T|f<ChIF<
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); eB0exPz%
ASSERT(IDM_ABOUTBOX < 0xF000); <8WFaP3,
CMenu* pSysMenu = GetSystemMenu(FALSE); (3n "a'
if (pSysMenu != NULL) snaAn?I4
{ "0eX/rY%
CString strAboutMenu; D!`;v Z\>
strAboutMenu.LoadString(IDS_ABOUTBOX); ,X!6|l8
if (!strAboutMenu.IsEmpty()) 'i+L
{ tpWGmjfo>
pSysMenu->AppendMenu(MF_SEPARATOR); xQsxc
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); G+dq
*/
} /+*"*Br/
} 5dj" UxH
SetIcon(m_hIcon, TRUE); // Set big icon FWbp;v{
SetIcon(m_hIcon, FALSE); // Set small icon oSCaP,P
m_Key.SetCurSel(0); /A{ Zf'DI
RegisterHotkey(); "2mPWRItO
CMenu* pMenu=GetSystemMenu(FALSE); YTTyMn
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); B4.:
9Od3
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); ;UQza ]i
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); `Gio
2gl9
return TRUE; // return TRUE unless you set the focus to a control lu.]R>w
} +a5F:3$
O`Tz^Q/D
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) a=2.Y?
{ Vk{;g
if ((nID & 0xFFF0) == IDM_ABOUTBOX) zYzV!s2^
{ wm~7`&
CAboutDlg dlgAbout; |62` {+
dlgAbout.DoModal(); V'vWz`#
} `'1g>Ebk0
else d]DV\*v
{ |5 V0_79
CDialog::OnSysCommand(nID, lParam); y[m,t}gi
} qFm w9\Fn
} )]@h}K}
cx[^D,usf~
void CCaptureDlg::OnPaint() [
U:C62oK,
{ JL6$7h
if (IsIconic()) ;1(^H:7T
{ ofB:7
CPaintDC dc(this); // device context for painting
RHUZ:r
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); >~o-6g
// Center icon in client rectangle :a }](Wn
int cxIcon = GetSystemMetrics(SM_CXICON); 6?a`'&
int cyIcon = GetSystemMetrics(SM_CYICON); l*l*5hA
CRect rect; _=mzZe[
GetClientRect(&rect); '|[!I!WB`
int x = (rect.Width() - cxIcon + 1) / 2; 1_+ h"LE
int y = (rect.Height() - cyIcon + 1) / 2; NWf=mrS8@$
// Draw the icon }zGx0Q
dc.DrawIcon(x, y, m_hIcon); Sgi`&;PF
} D?n6h\h\$%
else <K0epED
{ ?c#s}IH
CDialog::OnPaint(); -Q20af-
} c5ij2X|I
} Y5aG^wE[:
JI>Y?1i0O
HCURSOR CCaptureDlg::OnQueryDragIcon() $cSUB
{ }a;xs};X;
return (HCURSOR) m_hIcon; B%tF|KKj
} $7q3[skH
4aHogheg
void CCaptureDlg::OnCancel() neFwxS?
{ oxxuw
Dcl
if(bTray) bv4umL /
DeleteIcon(); {;{U@Z
CDialog::OnCancel(); rI>x'0Go*
} pwFdfp
c{=;lT
void CCaptureDlg::OnAbout() -`faXFW'
{ Rzd`MIHDp
CAboutDlg dlg; mi=mwN%UB
dlg.DoModal(); w~@"r#-
} 2 5 \S>
.8YxEnXw)(
void CCaptureDlg::OnBrowse() RBQ8+^
{ h4]^~stI
CString str; iwF_'I$#N
BROWSEINFO bi; A4"TJZBg}
char name[MAX_PATH]; Sp\TaUzg
ZeroMemory(&bi,sizeof(BROWSEINFO)); W9?*
~!
bi.hwndOwner=GetSafeHwnd(); FI^Wh7J
bi.pszDisplayName=name; FOF@@C~aH
bi.lpszTitle="Select folder"; }y6|H,t9
bi.ulFlags=BIF_RETURNONLYFSDIRS; Y
D<3#Dr]
LPITEMIDLIST idl=SHBrowseForFolder(&bi); Tri\5O0lPs
if(idl==NULL) SA<\n+>q^
return; ^+yz}YFM
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); c5^HGIe1
str.ReleaseBuffer(); $9G&
wH>{
m_Path=str; PMAz[w,R~
if(str.GetAt(str.GetLength()-1)!='\\') s[8. l35|
m_Path+="\\"; f./K/
UpdateData(FALSE); ZVXPp-M
} H_?rbz} o
z"4 q%DC
void CCaptureDlg::SaveBmp()
5Cdn
j
{ ]o'o
v
CDC dc; &GLDoLk6[
dc.CreateDC("DISPLAY",NULL,NULL,NULL); MG=E
6:
CBitmap bm; w'TAM"D`
int Width=GetSystemMetrics(SM_CXSCREEN); :|bL2T@>[
int Height=GetSystemMetrics(SM_CYSCREEN); vm@V5oH
bm.CreateCompatibleBitmap(&dc,Width,Height); ) ^En
CDC tdc; rD}g9?ut
tdc.CreateCompatibleDC(&dc); T
6D+@i
CBitmap*pOld=tdc.SelectObject(&bm); mOJdx-q?r
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); BeUyt
tdc.SelectObject(pOld); ] hT\"5&6
BITMAP btm; 5M>h[Q"R
bm.GetBitmap(&btm); j-9)Sijj{
DWORD size=btm.bmWidthBytes*btm.bmHeight; cM%?Ot,mK"
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); pN^g.
BITMAPINFOHEADER bih; #aX#gh}1
bih.biBitCount=btm.bmBitsPixel; HR-'8?)R.A
bih.biClrImportant=0; ?;l@yx
bih.biClrUsed=0; M8-8T
bih.biCompression=0; 2G8w&dtu
bih.biHeight=btm.bmHeight; Y#@D%
a 8
bih.biPlanes=1; sRt7.fe
bih.biSize=sizeof(BITMAPINFOHEADER); E`j' <#V!
bih.biSizeImage=size; @g#5d|U);
bih.biWidth=btm.bmWidth; =K:[26
bih.biXPelsPerMeter=0;
?!Y_w2
bih.biYPelsPerMeter=0; Z#}sK5s
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); z\eQB%aM
static int filecount=0; l9\W=-'
CString name; #]dm/WzY
name.Format("pict%04d.bmp",filecount++); JL,Y9G*]s
name=m_Path+name; b|_e):V|
BITMAPFILEHEADER bfh; M+:5gMB'
bfh.bfReserved1=bfh.bfReserved2=0; [3X\"x5@V
bfh.bfType=((WORD)('M'<< 8)|'B'); }F]Z1('
bfh.bfSize=54+size; at?I @By
bfh.bfOffBits=54; I7_lKr3
CFile bf; 48 -j
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ ;Ci:d*
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); 76D$Nm
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); L"jA#ULg
bf.WriteHuge(lpData,size); 7I
~O|Mw
bf.Close(); $ 5"
nCount++; suQTi'K1
} $R'?OK(`
GlobalFreePtr(lpData); -1dD~S$
if(nCount==1) >T;!Z 5L1
m_Number.Format("%d picture captured.",nCount); $TK*w8@:
else Lyc6nP;F
m_Number.Format("%d pictures captured.",nCount); 6c!F%xU}
UpdateData(FALSE); #H7
SLQr\
} JLm3qIC
Dspvc
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) Pyuul4(
{ vP,pK=5
if(pMsg -> message == WM_KEYDOWN) Zd-qBOB2L
{ =bh: U90y
if(pMsg -> wParam == VK_ESCAPE) 1{M?_~g4
return TRUE; y CHOg
if(pMsg -> wParam == VK_RETURN) VKPEoy8H
return TRUE; wa,`BAKJ+F
} 3u
j|jwL
return CDialog::PreTranslateMessage(pMsg); !BVCuuM>w
} F9LKO3Rh#u
=+_nVO*
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 2Rw<0.i|
{ yhgGvyD
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ uQ3sRJi
SaveBmp(); j)/Vtf
return FALSE; jvQ^Vh!mC
} |]<#![!h#
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ b#@xg L*D
CMenu pop; ~ox}e(xy
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); n#}@|"J
CMenu*pMenu=pop.GetSubMenu(0); fK:4jl-r
pMenu->SetDefaultItem(ID_EXITICON); WzFXF{(
CPoint pt; A!GvfmzqIn
GetCursorPos(&pt); B{\Y~>]Pj
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); l1]N&jN{
if(id==ID_EXITICON) O`CZwXD
DeleteIcon(); S$SCW<LuN
else if(id==ID_EXIT) /\Nc6Z/ L
OnCancel(); FV9{u[3m
return FALSE; IwYfs]-
} 2@bOy~$A
LRESULT res= CDialog::WindowProc(message, wParam, lParam); J t.<Z&
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) 8{0XqE~ix=
AddIcon(); SOG(&)b
return res; GI{EP&