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:
"rMfe>;FJ
`R0~mx&6G 一、实现方法
k<*v6
sNs; JWHsTnB 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:
#`y[75<n dOv\] #pragma data_seg("shareddata")
DOyO`TJi HHOOK hHook =NULL; //钩子句柄
M4Cb(QAVP UINT nHookCount =0; //挂接的程序数目
h1S)B|~8 static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
(?Ko:0+* static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
Ucv7`W
gr static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
hTa X@=Ra static int KeyCount =0;
P4B|l: static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
i6yA>#^ #pragma data_seg()
A{>w5T '/`O*KD] 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。
@vq)Y2)r\ T;DKDga 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:
XW aa`q rn
.qs BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
Xc[ym cKey,UCHAR cMask)
IhzY7U)}T {
ou0TKE9
_ BOOL bAdded=FALSE;
_1)n_P4 for(int index=0;index<MAX_KEY;index++){
A@o7 if(hCallWnd[index]==0){
.4]XR/I$ hCallWnd[index]=hWnd;
\JPMGcL HotKey[index]=cKey;
a=$ZM4Bn HotKeyMask[index]=cMask;
xDeM7L' bAdded=TRUE;
aNry> 2: KeyCount++;
-`8@ break;
i\lvxbp }
~6=6YP }
50 w$PW return bAdded;
qt.4dTd:_ }
Ch{6=k bK //删除热键
Lu^uY7
?} BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
<k[_AlCmsg {
u$tst_y- BOOL bRemoved=FALSE;
BcQUD?LC` for(int index=0;index<MAX_KEY;index++){
4U\>TFO if(hCallWnd[index]==hWnd){
W'"hjQ_ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
ac\aH#J_nC hCallWnd[index]=NULL;
^6# yL6E,~ HotKey[index]=0;
R@grY:h HotKeyMask[index]=0;
r1F5'?NZ(0 bRemoved=TRUE;
G\tN(%.f KeyCount--;
Pz*BuL< break;
@5&57R3> }
gGE{r}$ }
W/A@q o" }
psvc,V_* return bRemoved;
X"3p/!W.4 }
Q}Ah{H0C 0Gj/yra9MO G[e,7jev DLL中的钩子函数如下:
\4qF3# +s_a{iMVP LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
q=e;P;u {
*DcIC]ao[ BOOL bProcessed=FALSE;
oeKl\cgFx if(HC_ACTION==nCode)
S7J.(;
82 {
DEu0Z if((lParam&0xc0000000)==0xc0000000){// 有键松开
+)h# !/ switch(wParam)
g_ep
5#\D {
B t3++ Mj case VK_MENU:
JK,^:tgm MaskBits&=~ALTBIT;
IM6n\EZ^ break;
f4\F:YT case VK_CONTROL:
Q(x=;wf5r MaskBits&=~CTRLBIT;
i.^UkN{ break;
[qxpu{ case VK_SHIFT:
[jNVk3 MaskBits&=~SHIFTBIT;
p-"wY?q
break;
"r;cH5 3 default: //judge the key and send message
E_30)"] break;
qm#?DSLap }
j/O9LygB for(int index=0;index<MAX_KEY;index++){
^{J^oZ'%~ if(hCallWnd[index]==NULL)
<NDV 5P continue;
44n41.Q] if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
U1 3Lsky% {
!1S!)# SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
Y#): 1C1 bProcessed=TRUE;
})!- }
9(X~ }
!<h9XccN }
wmK;0 )|H else if((lParam&0xc000ffff)==1){ //有键按下
2N-p97"g switch(wParam)
S\ZCZ0 {
cMtUb case VK_MENU:
,F!-17_vt MaskBits|=ALTBIT;
b* n#XTV break;
qc'KQ5w7! case VK_CONTROL:
IY~I=} MaskBits|=CTRLBIT;
3>5gh8!- break;
V[^AV"V case VK_SHIFT:
@w%kOX MaskBits|=SHIFTBIT;
&9Z@P[f break;
1A(f_ 0,.Q default: //judge the key and send message
Zq:
}SU break;
we}5'bS> }
vGH]7jht for(int index=0;index<MAX_KEY;index++){
]9<H[5>$R if(hCallWnd[index]==NULL)
@d5t%V\ continue;
iN Lt4F[i if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
}f{5-iwD} {
DjZTr}%q SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
o{2B^@+Vb bProcessed=TRUE;
0aGauG[ }
-e51/lhpd }
RU.MJ
kYQ5 }
GAR6nJCz if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
I_Gm2Dd for(int index=0;index<MAX_KEY;index++){
/lHs]) , if(hCallWnd[index]==NULL)
h^."wv continue;
+5GC?cW if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
PJKxh%J SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
kDiR2K& //lParam的意义可看MSDN中WM_KEYDOWN部分
qIy9{LF }
][\ uH| }
W"~"R }
~2NTXp
return CallNextHookEx( hHook, nCode, wParam, lParam );
]3U|K .G }
]'#^ ~. tQMz1$ 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:
'7]9q#{su Tz(Dhb, BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
3=Xvl 58k BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
? a?]
LIE8 !$-QWKD4 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:
ccW{88II7w 7pH[_]1" LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
Yk7^?W {
qm=9!jqC; if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
M7gqoJM'Q {
AUU(fy#< //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
1ww~!R SaveBmp();
{mHxlG) return FALSE;
2ZxZ2?.uJ }
/5XdZu6k`h …… //其它处理及默认处理
fb!>@@9Z }
)d5mZE!3
pAtxEaXh )B^T7{ 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。
m`,h nDp 7ws[Rp8 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。
oFu( J PiX(Ase 二、编程步骤
g+k
yvI7o *pGbcBQ 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";
LC/%AbM ]@msjz' 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
$I3}%'`+ ,5|@vW2@u 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
@%As>X<3t LkJ-M=y 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
Oyjhc<6 DB+.< 5、 添加代码,编译运行程序。
sCAWrbOe> <(o) * Zmo 三、程序代码
2MKB(;k Qb1hk*$= ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
v}"DW? #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
#Ic-?2Gn4< #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
hzy#%FaB #if _MSC_VER > 1000
<~.1>CI9D3 #pragma once
5SHZRF(. 2 #endif // _MSC_VER > 1000
WS ^%<
h# #ifndef __AFXWIN_H__
09HqiROw #error include 'stdafx.h' before including this file for PCH
*h"7!g #endif
<a%RKjQvT #include "resource.h" // main symbols
$%3%&+z$I class CHookApp : public CWinApp
RZ:='; {
n]WVT@ public:
#;>v,Jo CHookApp();
"?{=|%mf // Overrides
Eg#WR&Uq" // ClassWizard generated virtual function overrides
lyyRyFfQ //{{AFX_VIRTUAL(CHookApp)
FO
xZkU\e= public:
IM~2=+ virtual BOOL InitInstance();
um1xSf1Xv virtual int ExitInstance();
;Z{jol //}}AFX_VIRTUAL
b*"%E,? //{{AFX_MSG(CHookApp)
Ouc$M2m0! // NOTE - the ClassWizard will add and remove member functions here.
GUqBnRA8j // DO NOT EDIT what you see in these blocks of generated code !
5g;i{T/6~x //}}AFX_MSG
`"qSr%| DECLARE_MESSAGE_MAP()
_air'XQ&! };
{3*Zx"e![ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
:5BVVa0oR BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
ORo,.#< BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
aO$I|!tl BOOL InitHotkey();
v,A8Mk2s# BOOL UnInit();
_T.k/a #endif
v_e3ZA:% 4jdP3Q/ //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
QlK]2r9 #include "stdafx.h"
oD&axNk #include "hook.h"
Z+G/==%3#, #include <windowsx.h>
) i=.x+Q #ifdef _DEBUG
jLv8K #define new DEBUG_NEW
q2~@z-q)b #undef THIS_FILE
R&]#@PW^ static char THIS_FILE[] = __FILE__;
o==:e #endif
vKmV<*K #define MAX_KEY 100
swLrp
74 #define CTRLBIT 0x04
zM2_z #define ALTBIT 0x02
8t
>nL #define SHIFTBIT 0x01
:2(U3~3: #pragma data_seg("shareddata")
YzVhNJWpw HHOOK hHook =NULL;
b]k9c1x UINT nHookCount =0;
'nSo0cyQ static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
/mCE= static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
6>&h9@ static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
6-J%Z%yT # static int KeyCount =0;
TNkvdE-S static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
$u
P'> #pragma data_seg()
EE$\8Gx']! HINSTANCE hins;
0<#>LWaM_ void VerifyWindow();
p;n"zr8U BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
YML]pNB //{{AFX_MSG_MAP(CHookApp)
rc`}QoB)R // NOTE - the ClassWizard will add and remove mapping macros here.
cogIkB&Ju // DO NOT EDIT what you see in these blocks of generated code!
v,^W& W. //}}AFX_MSG_MAP
f O ,5
u; END_MESSAGE_MAP()
m6Mko2 ;{89 *e*) CHookApp::CHookApp()
a|eHo%Qt {
2xK v; // TODO: add construction code here,
Ra/Pk G-7 // Place all significant initialization in InitInstance
9wbj}tN\z }
?!HU$> 6W[~@~D= CHookApp theApp;
H5>?{(m LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
|wINb~trz {
.C,D;T{ BOOL bProcessed=FALSE;
*WaqNMD[% if(HC_ACTION==nCode)
J"~!jrzBh( {
#+#^cqjZ if((lParam&0xc0000000)==0xc0000000){// Key up
LR#BP}\b' switch(wParam)
+h08uo5c {
fLS].b]1N case VK_MENU:
,0a\Ka{^ MaskBits&=~ALTBIT;
L Iz<fB break;
i936+[ case VK_CONTROL:
w)C5XX30; MaskBits&=~CTRLBIT;
gVNoC-n) break;
&P7Z_&34Z case VK_SHIFT:
_;M3=MTM9 MaskBits&=~SHIFTBIT;
gCq'#G\Z break;
Y'C1L4d default: //judge the key and send message
o$Ju\(Y$<+ break;
2Gh&h( }
$C{,`{= for(int index=0;index<MAX_KEY;index++){
}i{A4f` if(hCallWnd[index]==NULL)
BU#3fPl continue;
dTjDVq&Hz if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
"+E\os72| {
T@A Qe[U'v SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
;5DDV6 bProcessed=TRUE;
&`oybm-p( }
u}b%-:- }
'o~gT ;T# }
``%yVVg}
else if((lParam&0xc000ffff)==1){ //Key down
|az2vD6P switch(wParam)
#q4uS~ {
Ol~M
BQs case VK_MENU:
TJ1h[ MaskBits|=ALTBIT;
=*1NVi $n break;
h+ud[atk. case VK_CONTROL:
@fb"G4o`: MaskBits|=CTRLBIT;
`/^
_W
<
break;
mRa\ wEg% case VK_SHIFT:
2vWn(6` MaskBits|=SHIFTBIT;
bf|ePGW? break;
f7y.##W G default: //judge the key and send message
1jej7p>K break;
A;
wT`c }
t1]/Bw`j/ for(int index=0;index<MAX_KEY;index++)
YZ`SF"Bd( {
9z..LD( if(hCallWnd[index]==NULL)
N<1+aL\ continue;
aCI3Tx&2qT if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
[q Uv|l1 {
d$jwh(Ivs SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
5C&*PJ~WA bProcessed=TRUE;
G:p85k` }
yOt#6Vw }
1)MDnODJ }
9!
/kyyU if(!bProcessed){
2 rr=FJ for(int index=0;index<MAX_KEY;index++){
P:t .Nr" if(hCallWnd[index]==NULL)
Zskj?+1 continue;
+D:8r|evH if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
z}B39L SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
N@L{9ak1 }
bi^?SH\ }
HA*L*:0 }
P6R_W return CallNextHookEx( hHook, nCode, wParam, lParam );
)9:5?,SO }
"X8jpg V*{rHp{=p BOOL InitHotkey()
uINdeq 7|F {
{BT/P! if(hHook!=NULL){
[d8Q AO1;) nHookCount++;
>a,D8M? return TRUE;
YT
Zi[/ }
\?d3Pn5` else
dniU{v hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
BUJ\[/ if(hHook!=NULL)
P0jr>j@^- nHookCount++;
9MYk5q.X: return (hHook!=NULL);
7P7OTN }
8.#{J&h BOOL UnInit()
0n}13u=} {
m&Mupl if(nHookCount>1){
G$+v |z nHookCount--;
k=hWYe$iAz return TRUE;
wDZ<UP=X }
a/,>fv9;$ BOOL unhooked = UnhookWindowsHookEx(hHook);
"(^XZAU#W if(unhooked==TRUE){
RhH1nf2UR nHookCount=0;
?
T6K]~g hHook=NULL;
\A"o[A2v }
C/Khp + return unhooked;
>H!Mx_fDL }
6:]N% :x)H!z
P BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
jC9us>b {
iqQT ^
BOOL bAdded=FALSE;
DPTk5o[ for(int index=0;index<MAX_KEY;index++){
8Ojqm#/f if(hCallWnd[index]==0){
(~=.[Y hCallWnd[index]=hWnd;
,vJt!}} HotKey[index]=cKey;
Nr4:Gih HotKeyMask[index]=cMask;
4hL%J=0: bAdded=TRUE;
XH"+oW KeyCount++;
:"\,iH break;
?pTX4a&> }
^dHQ<L3.* }
xc:E>- return bAdded;
sjr,)|#[ }
V&M*,#(? 8Xotly BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
{ALEK {
;sZG=y@ BOOL bRemoved=FALSE;
7K1-.uQ for(int index=0;index<MAX_KEY;index++){
1F^Q* t{ if(hCallWnd[index]==hWnd){
$KiCs]I+ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
W$rWg>4> hCallWnd[index]=NULL;
E.oJ[; HotKey[index]=0;
XA>W>| HotKeyMask[index]=0;
5p;AON bRemoved=TRUE;
94u{k1d x KeyCount--;
t'eqk#rq break;
_ E;T"SC }
za>UE,?h }
~VGnE: }
yB b%#GW return bRemoved;
wVs?E }
>XD?zF)6 >
;,S|| void VerifyWindow()
Xwm3# o.&) {
d7OygDb < for(int i=0;i<MAX_KEY;i++){
XE}gl&\ if(hCallWnd
!=NULL){ "yn~axk7
if(!IsWindow(hCallWnd)){ Kc/1LeAik
hCallWnd=NULL; :xh{SsW@
HotKey=0; \Pg~j\;F]
HotKeyMask=0; w?Te%/s.
KeyCount--; IC`3%^
} YG "Ta|@5
} 2"Os9 KD
} TR"C<&y$j
}
FaL\6w
lSj
gN~:z
BOOL CHookApp::InitInstance() {keZ_2
{ /sE,2X*BT
AFX_MANAGE_STATE(AfxGetStaticModuleState()); b+rxin".
hins=AfxGetInstanceHandle(); B VBn.ut
InitHotkey(); h [TwaR
return CWinApp::InitInstance(); Wh[QR-7Ew
} j#NyNv(jE1
8Sbz)X
int CHookApp::ExitInstance() mzgt>Qtkz=
{ pGbfdX
VerifyWindow(); 7#V7D6j1
UnInit(); wwUI ;g
return CWinApp::ExitInstance(); %b6$N_M{H1
} x.Sf B[SZ
E
C?}iP
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file BZq#OAp
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) '\:4Ijp<"
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ ({f}Z-%
#if _MSC_VER > 1000
!`69.v
#pragma once 9:j?Jvw$
#endif // _MSC_VER > 1000 Ox3=1M0
k(gbUlCc
class CCaptureDlg : public CDialog K9!HW&?<|
{ }LHYcNw^z
// Construction ]33!obM
public: TOwd+]B
BOOL bTray; &?<uR)tl
BOOL bRegistered; X Xque-
BOOL RegisterHotkey(); u[>"_!T
UCHAR cKey; (jc@8@Wo.
UCHAR cMask; <2$vo
void DeleteIcon(); y Zafq"o
void AddIcon(); &Mh.PzO=b
UINT nCount; L^J4wYFTO
void SaveBmp(); ]e>qvSuYh
CCaptureDlg(CWnd* pParent = NULL); // standard constructor 6g(;2gY
// Dialog Data bLqy7S9x
//{{AFX_DATA(CCaptureDlg) agIqca;
enum { IDD = IDD_CAPTURE_DIALOG }; inh0p^
CComboBox m_Key; p{f R$-d
BOOL m_bControl; HJL! ;i
BOOL m_bAlt; ,OE&e*1
BOOL m_bShift; tKbxC>w
CString m_Path; /cjz=r1U>
CString m_Number; P/%7kD@5;
//}}AFX_DATA 6h 0qtXn-
// ClassWizard generated virtual function overrides FO!Td
//{{AFX_VIRTUAL(CCaptureDlg) A*JOp8\)
public: /{T&l*'
virtual BOOL PreTranslateMessage(MSG* pMsg); iaGA9l<b
protected: j=WxtMS
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support coP->&(@U#
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); +m=b
"g
//}}AFX_VIRTUAL %(CC
// Implementation f56yI]*N=<
protected: $?= $F
HICON m_hIcon; ^q7V%{54
// Generated message map functions p`tz*ewC
//{{AFX_MSG(CCaptureDlg) S%SYvA
virtual BOOL OnInitDialog(); *x36;6~W;
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); Llfl I
afx_msg void OnPaint(); \)PB p
afx_msg HCURSOR OnQueryDragIcon(); v{u3[c
virtual void OnCancel(); Z8v\>@?5R
afx_msg void OnAbout(); c&['T+X
afx_msg void OnBrowse(); c_/BS n
afx_msg void OnChange(); 5Rbl.5.A
//}}AFX_MSG FP@_V-
DECLARE_MESSAGE_MAP() |t,sK aL
}; $BqiC!~
#endif (tK_(gO
sh/,"b2!P
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file |G j.E
#include "stdafx.h" _@5Xmr
#include "Capture.h" _3/u#'m0
#include "CaptureDlg.h" L+t
/
E`
#include <windowsx.h> T(!1\ TB
#pragma comment(lib,"hook.lib") E=NjWO
#ifdef _DEBUG ]_KWN$pd
#define new DEBUG_NEW _i=*0Q
#undef THIS_FILE Z{8%Cln
static char THIS_FILE[] = __FILE__; RdCGK?s
#endif aDS:82GMQ
#define IDM_SHELL WM_USER+1 lrrTeE*
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); *G"hjc$L
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); X3:1KDVsV
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; "~r<ZG
class CAboutDlg : public CDialog t]xz7VQ
{ ,Ag {-&
public: hY)zKX_r
CAboutDlg(); Q2CGC+
// Dialog Data d59rq<yI
//{{AFX_DATA(CAboutDlg) K1
f1T
enum { IDD = IDD_ABOUTBOX }; R
iZ)FW
//}}AFX_DATA x{H+fq,M
// ClassWizard generated virtual function overrides n:AZ(f
//{{AFX_VIRTUAL(CAboutDlg) ib,`0=0= O
protected: 6IqPZ{g9K'
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support u`ir(JIj]
//}}AFX_VIRTUAL $z=a+t *
// Implementation ~d*Q{v~3
protected: Th_@'UDa
//{{AFX_MSG(CAboutDlg) Agd"m4!
//}}AFX_MSG <bcf"0A
DECLARE_MESSAGE_MAP() 0\mf1{$"!7
}; _Sjj|j
vfSPgUB)
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) [Rj4=qq=
{ VL#:oyWA
//{{AFX_DATA_INIT(CAboutDlg) z,Xj$wl
//}}AFX_DATA_INIT I:dUHN+@L5
} &A:&2sP8
f6r!3y
void CAboutDlg::DoDataExchange(CDataExchange* pDX) a1,)1y~
{
?K-4T
CDialog::DoDataExchange(pDX); PKlR_#EB?
//{{AFX_DATA_MAP(CAboutDlg) .ATpwFal
//}}AFX_DATA_MAP 3.movkj
} %!` %21
,[n9DPZ
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) }B%9cc
//{{AFX_MSG_MAP(CAboutDlg) *r.%/^@
// No message handlers >s<Bu' r
//}}AFX_MSG_MAP N8]DzE0%
END_MESSAGE_MAP() [I;C6p
RHsVG &<j
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) D#nH g
: CDialog(CCaptureDlg::IDD, pParent) <Zva
{ 6 ;'s9s"
//{{AFX_DATA_INIT(CCaptureDlg) 8UB2 du@?
m_bControl = FALSE; 'IU3Xu[-.
m_bAlt = FALSE; G}U <^]c
m_bShift = FALSE; `8ob Xb
m_Path = _T("c:\\"); lhM5a
\
m_Number = _T("0 picture captured."); S @[]znH
nCount=0; %
J\G[dl
bRegistered=FALSE; W@!qp
bTray=FALSE; 1
-Z&/3T]
//}}AFX_DATA_INIT O0}uY:B
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 7\@c1e*e
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); IlJ"t`Z9)
} :1d;jx>
<gPM/4$G
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) k7uX!}
{ \7\sx:!$
CDialog::DoDataExchange(pDX); c{^1`(#?
//{{AFX_DATA_MAP(CCaptureDlg) =t N}4
DDX_Control(pDX, IDC_KEY, m_Key); {?Slo5X|
DDX_Check(pDX, IDC_CONTROL, m_bControl); -axKnfj
DDX_Check(pDX, IDC_ALT, m_bAlt); CUDA<Fm
DDX_Check(pDX, IDC_SHIFT, m_bShift); 4{>r_^8
DDX_Text(pDX, IDC_PATH, m_Path); A}"|_&E
DDX_Text(pDX, IDC_NUMBER, m_Number); we}xGb.u
//}}AFX_DATA_MAP v:lkvMq|=
} ",apO
0}GO$%l
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) 7<LuL
//{{AFX_MSG_MAP(CCaptureDlg) YM#'+wl}`
ON_WM_SYSCOMMAND() "s@Hg1
ON_WM_PAINT() "=2\kZ
ON_WM_QUERYDRAGICON() 27}:f?2hbJ
ON_BN_CLICKED(ID_ABOUT, OnAbout) G/
si( LK
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) p*K #s1
ON_BN_CLICKED(ID_CHANGE, OnChange) +wG
*qI
//}}AFX_MSG_MAP M._h=wX{}
END_MESSAGE_MAP() t!4 (a0\$F
hq4&<Zr(
BOOL CCaptureDlg::OnInitDialog() P%B|HnG^
{ =pzTB-G
CDialog::OnInitDialog(); 42e [OG-
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); lP=,|xFra
ASSERT(IDM_ABOUTBOX < 0xF000); )P?0YC
CMenu* pSysMenu = GetSystemMenu(FALSE); xM{[~Kh_x
if (pSysMenu != NULL) ,7$&gx>2&
{ L@RnLaoQ
CString strAboutMenu; &%v*%{|j
strAboutMenu.LoadString(IDS_ABOUTBOX); sc t3|H#
if (!strAboutMenu.IsEmpty()) -Tvnd,
{ |Ja5O
pSysMenu->AppendMenu(MF_SEPARATOR); qo:Zc`t(R
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); {^
BZ#)m|
} zEjl@Kf
} ys!O"=OJ
SetIcon(m_hIcon, TRUE); // Set big icon Dhm;K$T
SetIcon(m_hIcon, FALSE); // Set small icon 4~Q<LEly
m_Key.SetCurSel(0);
p7+>]sqX
RegisterHotkey(); !pfpT\i]N:
CMenu* pMenu=GetSystemMenu(FALSE); C!_=L?QT^
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); eG+$~\%Fub
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); O-0 5.
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); 'RwfW|~6
return TRUE; // return TRUE unless you set the focus to a control Qraq{'3
} yl*%P3m|
;=2JbA+"G
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) zM8 jjB
{ k
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q v
if ((nID & 0xFFF0) == IDM_ABOUTBOX) 37n2 #E
{ AW;xlY= g
CAboutDlg dlgAbout; Sc3{Y+g
dlgAbout.DoModal(); 8\nka5
} :bo2H[U+
else 3hkEjR
{ r}Vr_
CDialog::OnSysCommand(nID, lParam); Ww~C[8q
} +dCR$<e9r
} uJ|,-"~F
CVY-U|xFY
void CCaptureDlg::OnPaint() D,$M$f1
{ GQ85ykky
if (IsIconic()) EId>%0s5
{ Y q/vym-O5
CPaintDC dc(this); // device context for painting Gqq<-drR
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); %/)z!}{
// Center icon in client rectangle A+Bq5mik
int cxIcon = GetSystemMetrics(SM_CXICON); EAh|$~X
int cyIcon = GetSystemMetrics(SM_CYICON); b L.Xby<Y
CRect rect; Q?.9BM1V
GetClientRect(&rect); iYa)*,
int x = (rect.Width() - cxIcon + 1) / 2; vWW Q/^
int y = (rect.Height() - cyIcon + 1) / 2; A[4HD!9=
// Draw the icon F" G+/c/L
dc.DrawIcon(x, y, m_hIcon); BGNZE{K4"
} xn=mS!"1Zo
else >;G7ty[RX7
{ "1dpv\
CDialog::OnPaint(); )#Ecm<.^
} K7$Q.
} p]e.E`'S
* W"Pv,:
HCURSOR CCaptureDlg::OnQueryDragIcon() aA%x9\Y
{ ?y%Mm09
return (HCURSOR) m_hIcon; e\#aQ1?"
} ?(khoL t
)-6>!6hZ
void CCaptureDlg::OnCancel() SXXO#
{ \HMuVg'Q
if(bTray) pcd?6jh8
DeleteIcon(); V[8!ymi0
CDialog::OnCancel(); lh\`9F:
} uI)z4Z
+CQIm!Sp
void CCaptureDlg::OnAbout() g5nL7;`N
{ Vs>e"czfm/
CAboutDlg dlg; Qm[ ) [M
dlg.DoModal(); t|&hXh{
} rWL&-AZQl
C-:|A* z
void CCaptureDlg::OnBrowse() < A`srmS?
{ )):D&wlq
CString str; ()Img.TIt
BROWSEINFO bi; .<K9Zyi
char name[MAX_PATH]; p:|7d\r
ZeroMemory(&bi,sizeof(BROWSEINFO)); F(U(b_DPM
bi.hwndOwner=GetSafeHwnd(); 8M4GforP
bi.pszDisplayName=name; qP/McH?
bi.lpszTitle="Select folder"; 3;//o<
bi.ulFlags=BIF_RETURNONLYFSDIRS; P=ubCS'
LPITEMIDLIST idl=SHBrowseForFolder(&bi); j;_E0j#
if(idl==NULL) 1"l48NL L|
return; b^~4 k; <
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); p%Ns
f[1>
str.ReleaseBuffer(); wLq#,X>%B
m_Path=str; >'3nsR
if(str.GetAt(str.GetLength()-1)!='\\') [MAvU?;
m_Path+="\\"; vA?3kfL|#
UpdateData(FALSE); }y|_v^
} 1LmbXH]%
Z'wGZ(
void CCaptureDlg::SaveBmp() -ADb5-px
{ H'@@%nO(
CDC dc; "NV~lJS%
dc.CreateDC("DISPLAY",NULL,NULL,NULL); f1\mE~#}
CBitmap bm; Mf9x=K9
int Width=GetSystemMetrics(SM_CXSCREEN); w!UIz[ajI
int Height=GetSystemMetrics(SM_CYSCREEN); 0b=00./o
bm.CreateCompatibleBitmap(&dc,Width,Height); 9WL$3z'*
CDC tdc;
s_!F`[
tdc.CreateCompatibleDC(&dc); Tn'o$J
CBitmap*pOld=tdc.SelectObject(&bm); o~x49%X<c
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); >b*}Td~J
tdc.SelectObject(pOld); `b)i;m
BITMAP btm; bz\nCfU
bm.GetBitmap(&btm); H9=8nLb.
DWORD size=btm.bmWidthBytes*btm.bmHeight; Q-e(>=Gv_
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); |pT[ZT|}G
BITMAPINFOHEADER bih; @ +>>TGC
bih.biBitCount=btm.bmBitsPixel; nI`9|W
bih.biClrImportant=0; 5N#Sic M
bih.biClrUsed=0; (]"`>,ray
bih.biCompression=0; vf!lhV-UG+
bih.biHeight=btm.bmHeight; YQ-V^e6
bih.biPlanes=1; S2V+%Z
_J
bih.biSize=sizeof(BITMAPINFOHEADER); *Fd(
bih.biSizeImage=size; ZjgfkZAS
bih.biWidth=btm.bmWidth; r#mH[|@W~
bih.biXPelsPerMeter=0; G'iE`4`2
bih.biYPelsPerMeter=0; #!jwn^yq
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); a/~1CrYr
static int filecount=0; 2Gc0pBqx
CString name; RbEtNwG@c
name.Format("pict%04d.bmp",filecount++); jq[Q>"f
name=m_Path+name; VpxsgCS
BITMAPFILEHEADER bfh; F,xFeq$/{
bfh.bfReserved1=bfh.bfReserved2=0; xf3/J{n3
bfh.bfType=((WORD)('M'<< 8)|'B'); 'Y5l3xQk
bfh.bfSize=54+size; X<:Zx#J?i
bfh.bfOffBits=54; 0w".o!2\U{
CFile bf; ~T\:".C
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ qc/)l~]?g{
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); 1{CVd m<9
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); :D
bf.WriteHuge(lpData,size); `G>BvS5h
bf.Close(); VBg
M7d
nCount++; K^[Dz\ov5
} 9t{Iv({6p
GlobalFreePtr(lpData); o=Kd9I#
if(nCount==1) q[~+Zm
m_Number.Format("%d picture captured.",nCount); _sqV@ J
else b59NMGn
m_Number.Format("%d pictures captured.",nCount); {xQ(xy
UpdateData(FALSE); K]>X31Ho
} B"Ttr+
4nD U-P#f
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg)
Wo/LrCg
{ =R||c
if(pMsg -> message == WM_KEYDOWN) q4KYC!b
{ 9:CM#N~?o
if(pMsg -> wParam == VK_ESCAPE) Si=u=FI1e
return TRUE; R?J=5tO
if(pMsg -> wParam == VK_RETURN) 2~!+EH
return TRUE; uVLKR PY
} |BE`ASW;
return CDialog::PreTranslateMessage(pMsg); z5IdYF?
} F44KbUH
j<'ZO)q`Q
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) '>dx~v %
{ 8i?:aN[.1b
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ R}0!F2
SaveBmp(); eW;0{P
return FALSE; ; +R
} \t%rIr
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ zr1A4%S"
CMenu pop; nrRP1`!]T
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); c>yqq'
CMenu*pMenu=pop.GetSubMenu(0); LVxR*O
pMenu->SetDefaultItem(ID_EXITICON); .L))EB
CPoint pt; hBNA,e:
GetCursorPos(&pt); Tj,1]_`=V$
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); 6,Y<1b*|Vo
if(id==ID_EXITICON) .WTar9e#
DeleteIcon(); gSXidh}^
else if(id==ID_EXIT) okQ<_1e{
OnCancel(); NT<vs"<B
return FALSE; *BAR`+;U
} rnS&^
LRESULT res= CDialog::WindowProc(message, wParam, lParam); b=Oec%Adx
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) &WoS(^
AddIcon(); >):^Zs
return res; +:#UU;W
} pn-`QB:{h
_/@u[dWeL
void CCaptureDlg::AddIcon() |Y]4PT#EE
{ ?Y\hC0a60
NOTIFYICONDATA data; $ {5|{`
data.cbSize=sizeof(NOTIFYICONDATA); )|`|Usn#[
CString tip; T6fm`uL&L
tip.LoadString(IDS_ICONTIP); 8AuOe7D9A
data.hIcon=GetIcon(0); K%RjWX=H
data.hWnd=GetSafeHwnd(); Y>Tok|PV
strcpy(data.szTip,tip); GR>kxYM%q
data.uCallbackMessage=IDM_SHELL; (bo-JOOdY(
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; ;FO( mL (
data.uID=98;
mPS27z(
Shell_NotifyIcon(NIM_ADD,&data); ,RIC _26
ShowWindow(SW_HIDE); \9`76*X6
c
bTray=TRUE; s\3OqJo%)
} :~%{
t @vb3
void CCaptureDlg::DeleteIcon() b_rHt
s
{ (hFyp}jkk
NOTIFYICONDATA data; b&\f 8xZ
data.cbSize=sizeof(NOTIFYICONDATA); c%vtg.A
data.hWnd=GetSafeHwnd(); ^M~Z_CQL2
data.uID=98; [
F7ru4"{
Shell_NotifyIcon(NIM_DELETE,&data); u;3wg`e
ShowWindow(SW_SHOW); r0(* ]K:.
SetForegroundWindow(); $fFh4O4
ShowWindow(SW_SHOWNORMAL); ~1.B
fOR8
bTray=FALSE; ^< wn
} cyPJ(&;
x_$`#m{hL5
void CCaptureDlg::OnChange() "#G`F
{ jSd[
RegisterHotkey(); wjc&