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:
| [P!9e
;5dJ5_ } 一、实现方法
jIg]?4bW[ Me2%X>; 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:
CO-9-sQx
"}(*Km5Po #pragma data_seg("shareddata")
r m\] HHOOK hHook =NULL; //钩子句柄
D8G5,s-. UINT nHookCount =0; //挂接的程序数目
`Z0FQ( r_ static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
[Vc8j&:L static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
$CRu?WUS]' static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
!CY:XQm static int KeyCount =0;
d3<7t static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
Qw}uB$S> #pragma data_seg()
2old})CLJ ,F!zZNW9 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。
MA6(VII #;z;8q 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:
:[kfWai #( Uyj6Ij_Pj) BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
Vo"Wr>F cKey,UCHAR cMask)
Nu/wjx$b {
~l+2Z4nV BOOL bAdded=FALSE;
#p*D.We for(int index=0;index<MAX_KEY;index++){
TD!--l*gL if(hCallWnd[index]==0){
0*]n#+= hCallWnd[index]=hWnd;
Y 3h`uLQ HotKey[index]=cKey;
%68'+qz HotKeyMask[index]=cMask;
m}hEi bAdded=TRUE;
Gh>&+UA'$1 KeyCount++;
XXPn)kmWR break;
_wH>h$E }
~t^
Umx"Ew }
/W9(}Id6 return bAdded;
\2)D
}
:y'EIf //删除热键
oq${}n < BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
2*Zk^h= {
lonV_Xx BOOL bRemoved=FALSE;
,4:=n$e 0 for(int index=0;index<MAX_KEY;index++){
K*I!:1;3N if(hCallWnd[index]==hWnd){
z36wWdRa6 if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
*IX<&u# hCallWnd[index]=NULL;
ckGmwYP9 HotKey[index]=0;
5(>SFxz"t HotKeyMask[index]=0;
}D># AFs6# bRemoved=TRUE;
;NU-\<Q{ KeyCount--;
h4Wt
oE>i break;
0vX4v)-^u }
v%:VV*MxF }
wg%g(FO }
c+D< return bRemoved;
0vETg'r }
e, N}z TZ *>MySiF IjGPiC DLL中的钩子函数如下:
.7]P-]uOZ u
3^pQ6Q LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
*Nm$b+ {
_Jy7` 4B. BOOL bProcessed=FALSE;
o^XDG^35` if(HC_ACTION==nCode)
2n)?)w]!M {
* xCY^_ if((lParam&0xc0000000)==0xc0000000){// 有键松开
wA\5-C7j switch(wParam)
@-}*cQ4u? {
K+pVRDRcs case VK_MENU:
q`,%L1c4 MaskBits&=~ALTBIT;
7:,f|> break;
~wa6S? case VK_CONTROL:
w
lH\w? MaskBits&=~CTRLBIT;
f(Y_<% break;
3P9ux case VK_SHIFT:
V"m S$MN MaskBits&=~SHIFTBIT;
1rJ2}d\y break;
u<Y#J,p`e default: //judge the key and send message
2 /FQ;<L break;
+LF#XS@ }
-QroT`gy for(int index=0;index<MAX_KEY;index++){
xNzGp5H if(hCallWnd[index]==NULL)
AH|gI2 continue;
4q E95THB if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
z%OKv[/N {
_]-4d_&3( SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
%8,$ILN bProcessed=TRUE;
-~mgct5 }
T1]?E]m{ }
&)Xc'RQ.C }
fC[za,PXaE else if((lParam&0xc000ffff)==1){ //有键按下
OvtE)ul@ switch(wParam)
L-T,[;bl {
9<6q(]U case VK_MENU:
Zz0e4C MaskBits|=ALTBIT;
LWyr break;
maXg(Lu case VK_CONTROL:
F!]Sr'UA MaskBits|=CTRLBIT;
8NWo)y49H break;
W6&vyOc case VK_SHIFT:
HeOdCr-PN MaskBits|=SHIFTBIT;
H"#ITL break;
2yZr!Rb~* default: //judge the key and send message
:OG I|[ break;
@1MnJP }
Upe}9xf for(int index=0;index<MAX_KEY;index++){
m^k0j/ if(hCallWnd[index]==NULL)
w G %W{T$ continue;
V)j[`,M: if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
/|IPBU 5 {
FTf#"'O SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
p;O%W@n" bProcessed=TRUE;
CMXF[X)% }
# ]7Lieh[5 }
;-+q*@sa] }
tAdE<).! if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
qN $t_ for(int index=0;index<MAX_KEY;index++){
23s;O)) if(hCallWnd[index]==NULL)
Y;"k5+ q continue;
V'Gal` if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
LQ jbEYp SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
F5h/> //lParam的意义可看MSDN中WM_KEYDOWN部分
o*S_" }
"& ,ov# }
P {TJ$ }
&{}Mds return CallNextHookEx( hHook, nCode, wParam, lParam );
Mo,&h?VOM? }
WsI`!ez;D \N,ox(f?gW 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:
-V2\s Zh"m;l/] BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
H@Dpht>[ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
lQn"
6o1 XKoY!Y\ 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:
{>]\< J|`0GDSn LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
Q7BbST+ {
TNX9Z)=>g if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
t" .Ytz> {
{]0e=#hw //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
c{z$^)A/ SaveBmp();
JMb_00r return FALSE;
wA)
Hot
}
EBj^4=b[ …… //其它处理及默认处理
Gt w>R }
* {g3ia *FlPGBjJ W(, j2pU 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
-@orIwA& ]<;,HGO 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
.iXN~*+g ~>2uRjvkwB 二、编程步骤
g@.$P>Bh IGlR,tw_/ 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";
ex3Qbr }3pM,. 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
HA6tGZP*L (3#PKfY+ 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;
_plK(g-1J% QV;o9j 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;
V%Uj\cv !jCgTo
y 5、 添加代码,编译运行程序。
/ f%mYL ajYe?z 三、程序代码
Lb*KEF% s 0-.
d{P ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
?jx]%n fV #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
f:c'j` #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
I>c,Bo7 #if _MSC_VER > 1000
|P|B"I<? #pragma once
)^2eC<t #endif // _MSC_VER > 1000
Oy6fl'FIt #ifndef __AFXWIN_H__
U|^xr~q!f- #error include 'stdafx.h' before including this file for PCH
5]xuU.w' #endif
&C 9hT #include "resource.h" // main symbols
=ily=j"hK class CHookApp : public CWinApp
X>q`F;W {
mxc)Wm<4 public:
fi+}hGj(r CHookApp();
h Yu6PWK // Overrides
iD^,O)b // ClassWizard generated virtual function overrides
c9(3z0!F? //{{AFX_VIRTUAL(CHookApp)
/{M<FVXK+| public:
i"{O~[ virtual BOOL InitInstance();
)rc!irac] virtual int ExitInstance();
Ni$'#
W?t //}}AFX_VIRTUAL
"wUIsuG/p //{{AFX_MSG(CHookApp)
(In{GA7; // NOTE - the ClassWizard will add and remove member functions here.
k,h602( // DO NOT EDIT what you see in these blocks of generated code !
&L o TO+ //}}AFX_MSG
}
ueFy<F DECLARE_MESSAGE_MAP()
WT
*"V<Z };
O
zAIz+` LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
/:dLqyQ_V BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
U,P_bz*) BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
iFI74COam BOOL InitHotkey();
b3(*/KgK BOOL UnInit();
"*g+qll!5d #endif
kY0HP a JsEJ6!1 //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
3JazQU #include "stdafx.h"
STKL #include "hook.h"
Sp`l>BL #include <windowsx.h>
&@=Jm
/5 #ifdef _DEBUG
PKm|?kn{0( #define new DEBUG_NEW
$8EEtr,! #undef THIS_FILE
JWVV?~1 static char THIS_FILE[] = __FILE__;
W4$o\yA] #endif
V&Y`?Edc #define MAX_KEY 100
Ky3mzw| #define CTRLBIT 0x04
qGk+4 yC #define ALTBIT 0x02
qF)J#$4;6 #define SHIFTBIT 0x01
XF`2*:7 #pragma data_seg("shareddata")
VRo&1: HHOOK hHook =NULL;
Mz+I
YP`L UINT nHookCount =0;
-t-f&`S|| static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
kG^76dAQL static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
# :+Nr static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
];bRRBEU static int KeyCount =0;
B-I4(w($ static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
mF~T?L" #pragma data_seg()
vHaM yA- HINSTANCE hins;
g)Z8WH$;H3 void VerifyWindow();
R'c*CLaiE BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
5"%.8P //{{AFX_MSG_MAP(CHookApp)
1(' wg! // NOTE - the ClassWizard will add and remove mapping macros here.
MGdzrcF // DO NOT EDIT what you see in these blocks of generated code!
)Q2Ap& //}}AFX_MSG_MAP
]4~Yi1] END_MESSAGE_MAP()
?G{0{c2 "&(/bdah?& CHookApp::CHookApp()
HZrA}|:h {
bWyimr&B // TODO: add construction code here,
KQ~y;{h?b // Place all significant initialization in InitInstance
,GOIg|51 }
oXo>pl M1jT+ CHookApp theApp;
'1u?-2 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
^sv|m" {
/*C!]Z>. BOOL bProcessed=FALSE;
w4
yrAj
2 if(HC_ACTION==nCode)
(g6e5Sgi> {
-"-.Z if((lParam&0xc0000000)==0xc0000000){// Key up
?XKX&ws switch(wParam)
rrIyZ@_d9 {
5Fy dh0. case VK_MENU:
M+"6VtZH MaskBits&=~ALTBIT;
a)|y0w)vV break;
eP~bl
case VK_CONTROL:
DJGafX^ MaskBits&=~CTRLBIT;
!ooi.Oz*Tu break;
?NE/}?a case VK_SHIFT:
}L0
[Jo: MaskBits&=~SHIFTBIT;
iXWzIb}CJ- break;
EBh dP default: //judge the key and send message
SIK:0>yK" break;
@Y0ZW't }
" {<X! ^u> for(int index=0;index<MAX_KEY;index++){
3ynkf77cn if(hCallWnd[index]==NULL)
z ]f(lwo{ continue;
=gF035 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
o
Mz{j: {
[kg^S`gc# SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
3a:Hx|
Yg bProcessed=TRUE;
la;*> }
8T+9
fh]I }
@x `X|>& }
j$T12 else if((lParam&0xc000ffff)==1){ //Key down
1zRYd`IPoq switch(wParam)
~\=D@G,9 {
NV5qF/<M case VK_MENU:
?j&hG|W9<z MaskBits|=ALTBIT;
^i@anbH break;
y)zZ:lyIq case VK_CONTROL:
Y"
=8wNbr MaskBits|=CTRLBIT;
R;HE{q[ f break;
,h=a+ja8 case VK_SHIFT:
{Q>OZm\+ MaskBits|=SHIFTBIT;
0"7+;(\1Rk break;
k"#gSCW$ default: //judge the key and send message
H+*3e& break;
f2 ~Aug }
:]:)c8!6 for(int index=0;index<MAX_KEY;index++)
{ <Gyjq {
4T@+gy^. if(hCallWnd[index]==NULL)
rp\`uj*D continue;
/KvJjt'8 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
7R:j^"I@ {
I^EZ s6~ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
Tdh(J",d bProcessed=TRUE;
UIDeMz }
Muwlehuq }
WVD48}HF- }
xHt7/8wF if(!bProcessed){
_-BP?'lN for(int index=0;index<MAX_KEY;index++){
M|c_P)7ym if(hCallWnd[index]==NULL)
CHTK.%AQH! continue;
e?XFtIj$ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
J4ZHE\ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
PVg<Ovi^d }
z&QfZs }
W,EIBgR(R5 }
e1g3a1tnWl return CallNextHookEx( hHook, nCode, wParam, lParam );
s,r|p@^ }
$y6 <2w%b t Cb34Wpf BOOL InitHotkey()
R*vQvO%)h {
c2NB@T9'v if(hHook!=NULL){
{C&Uq#V nHookCount++;
T1qbb* return TRUE;
,c:NdY(,) }
*EGzFXa else
FD[*Q2fU hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
^R:&c;&, if(hHook!=NULL)
.v(GVkE} nHookCount++;
rJGh3% return (hHook!=NULL);
i{m!v6j: }
Tr_gc~ BOOL UnInit()
.8W-,R4 {
f2[R2sto@ if(nHookCount>1){
Y_Fn)( nHookCount--;
="78#Wfj2 return TRUE;
Xk.OyQ@ }
Eu' ;f_s BOOL unhooked = UnhookWindowsHookEx(hHook);
Mv%Qze,\V^ if(unhooked==TRUE){
2b7-=/[6 nHookCount=0;
9HO9>^ hHook=NULL;
3F]Dh^IR9 }
O`0r'&n return unhooked;
rX)&U4#[m }
[L X/O@ ke8g tbm BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
VxDIA_@y {
QTBc_Z BOOL bAdded=FALSE;
g;=VuQuP| for(int index=0;index<MAX_KEY;index++){
nBp6uNK[ if(hCallWnd[index]==0){
o)XrC hCallWnd[index]=hWnd;
\{`^Q+< HotKey[index]=cKey;
S>I` y]qlR HotKeyMask[index]=cMask;
~2\Sn-` bAdded=TRUE;
h#Z["BG KeyCount++;
joskKik^ break;
w r"0+J7 }
qdI%v#'M }
P}~MO)*1 return bAdded;
>BO$tbU5b
}
ya1
aWs~ :0:Tl/)) BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
^P@:CBO {
OC*28) BOOL bRemoved=FALSE;
ZN#b5I2Pf for(int index=0;index<MAX_KEY;index++){
:=y5713 if(hCallWnd[index]==hWnd){
~D3S01ecM if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
[-*&ZYp hCallWnd[index]=NULL;
@U8u6JNK' HotKey[index]=0;
4*qBu}( HotKeyMask[index]=0;
0Qa0 bRemoved=TRUE;
uCr& ` KeyCount--;
`sqr>QD break;
j yD3Sa3 }
F:q4cfL6 }
iOg4(SPci }
U4=l`{5on return bRemoved;
\"(?k>]E }
_Z]l=5d )9"^ D void VerifyWindow()
PolJo?HZ {
=xm7i#1 for(int i=0;i<MAX_KEY;i++){
KV$&qM. if(hCallWnd
!=NULL){ '(@q"`n
if(!IsWindow(hCallWnd)){ zEFS\nP}E
hCallWnd=NULL; iY/2 `R
HotKey=0; =KHb0d |.
HotKeyMask=0; n5kGHL2
KeyCount--; I :<,9.
} sMGo1pG(
} _aevaWtEx
} Rb:H3zh
} 5NZuaN
>[aR8J/U
BOOL CHookApp::InitInstance() 1<'z)r4
{ Uap0O2n
AFX_MANAGE_STATE(AfxGetStaticModuleState()); FTCIfW
hins=AfxGetInstanceHandle(); pF8$83S
InitHotkey(); 4Y?2u
return CWinApp::InitInstance(); %TQ4ZFD3
} QIMd`c
LHA^uuBN}
int CHookApp::ExitInstance() B-N//ef}
{ yS~Y"#F!.
VerifyWindow(); ]:Ep1DIMl
UnInit(); E2r5Pg
return CWinApp::ExitInstance(); 1ARtFR2C{b
} 39 }e
}W"
<@(\z
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file Dst;sLr[,
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) +h"i6`g
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ ?I^$35
#if _MSC_VER > 1000 uuEvH<1
#pragma once P_3IFHe
#endif // _MSC_VER > 1000 C{/U;Ie-b
{mD0ug
class CCaptureDlg : public CDialog #6\mTL4vg
{ 'S6zk wC]
// Construction |iUF3s|?
public: C&Q[[k"kb
BOOL bTray; |_p7vl"
BOOL bRegistered; $V3If
BOOL RegisterHotkey(); acS~%^"<_
UCHAR cKey; >bV3~m$a+
UCHAR cMask; L-E &m* %
void DeleteIcon(); it H
void AddIcon(); mH$ `)i8
UINT nCount; ,]0BmlD
void SaveBmp(); (nLzWvN
CCaptureDlg(CWnd* pParent = NULL); // standard constructor P
s>Y]
// Dialog Data w&H>`l06
//{{AFX_DATA(CCaptureDlg) >oq\`E
enum { IDD = IDD_CAPTURE_DIALOG }; uB"B{:Kz
CComboBox m_Key; Ag0
6M U
BOOL m_bControl; <7`k[~)VB
BOOL m_bAlt; $Mg O)bH
BOOL m_bShift; Rp2h[_>
CString m_Path; !:\0}w$-
CString m_Number; GCYXDovh
//}}AFX_DATA A v>v\ :.>
// ClassWizard generated virtual function overrides Os[z>H?
//{{AFX_VIRTUAL(CCaptureDlg) -_9*BvS]R
public: OH>Gc-V
virtual BOOL PreTranslateMessage(MSG* pMsg); 0Md.3kY
protected: Mo3%OR
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support vWmt<E|e
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); uzQj+Po
//}}AFX_VIRTUAL 2<UC^vZ
// Implementation cPZ\iGy
protected: 1ik.|T<f0
HICON m_hIcon; _}47U7s8
// Generated message map functions 3 8&K"
//{{AFX_MSG(CCaptureDlg) ~c v|,
virtual BOOL OnInitDialog(); =C$"e4%Be
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); lGahwn:
afx_msg void OnPaint(); XPrnQJ
afx_msg HCURSOR OnQueryDragIcon(); j{FRD8]V
virtual void OnCancel(); yq x!{8=V
afx_msg void OnAbout(); E2}X[EoBF
afx_msg void OnBrowse(); zK~_e\m
afx_msg void OnChange(); /NB|N*}O)
//}}AFX_MSG |^Yz*r?BJ
DECLARE_MESSAGE_MAP() U&(gNuR>J
}; n'vdA !R
#endif >P(.yQ8&kL
%ho?KU2j
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file =@O&$&
#include "stdafx.h" b"o\-iUioe
#include "Capture.h" xC
+>R1)
#include "CaptureDlg.h" 7?g({]
#include <windowsx.h> 0ie)$fi
#pragma comment(lib,"hook.lib") Q& d;UVp
#ifdef _DEBUG EpACd8Fb
#define new DEBUG_NEW @ukL!AV?Y
#undef THIS_FILE gZ>&cju
static char THIS_FILE[] = __FILE__; )RFY2}
#endif ZX-A}
#define IDM_SHELL WM_USER+1 i\
7JQZ
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); G?~Yw'R^8
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); 4j+M<g
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; MsIaMW _
class CAboutDlg : public CDialog =saRh)EM
{ -{A64gfFxT
public: V?T&>s
CAboutDlg(); ?Nt m5(R
// Dialog Data mV}8s]29
//{{AFX_DATA(CAboutDlg) _W Hi<,-
enum { IDD = IDD_ABOUTBOX }; FN26f*/
//}}AFX_DATA U7zd7O
// ClassWizard generated virtual function overrides ]GHw~s?
//{{AFX_VIRTUAL(CAboutDlg) E2o8'.~Yd`
protected: ~.e~YI80
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 0"\js:-$
//}}AFX_VIRTUAL S_AN.8T
// Implementation T{3-H(-gA
protected:
OS(Ua
//{{AFX_MSG(CAboutDlg) R Ee~\n+P^
//}}AFX_MSG 66WJ=?JV
DECLARE_MESSAGE_MAP() k'"R;^~xg
}; F`gK6;zp
M_$;"NS+}
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) lUnC+w#[
{ 6m(+X
MS
//{{AFX_DATA_INIT(CAboutDlg) |gk"~D
//}}AFX_DATA_INIT Lrt~Q:z2u
} h|z59h&X8G
%t.\J:WN;
void CAboutDlg::DoDataExchange(CDataExchange* pDX) Z_jV0[\v0P
{ !_>/ r
CDialog::DoDataExchange(pDX); 5@bmm]
//{{AFX_DATA_MAP(CAboutDlg) h=au`o&CG
//}}AFX_DATA_MAP F CfU=4O
} 44B9JA7u
|M?VmG/6
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) n#P?JyGm1g
//{{AFX_MSG_MAP(CAboutDlg) Hnvs{KC`
// No message handlers ?[5_/0L,=
//}}AFX_MSG_MAP 7bM
H
END_MESSAGE_MAP() q"g4fzCD
L_zB/(h
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) 1$yS Ii
: CDialog(CCaptureDlg::IDD, pParent) Co<F<eXe
{ XPi5E"
//{{AFX_DATA_INIT(CCaptureDlg) Ao9=TC'v$'
m_bControl = FALSE; `GooSX
m_bAlt = FALSE; RDqQ6(e"
m_bShift = FALSE; :?3y)*J!
m_Path = _T("c:\\"); y<8o!=Tb5
m_Number = _T("0 picture captured."); ^S(["6OJ(
nCount=0; 3SF J8
bRegistered=FALSE; nhq,Y0YH
bTray=FALSE; Eo<N
//}}AFX_DATA_INIT >lK:~~1
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 ^12}#I
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); a&n}pnEn)
} \z-OJ1[F
s(Fxi|v;
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) d+7Dy3i|g=
{ n]_<6{: U
CDialog::DoDataExchange(pDX); 7lQ:}&
//{{AFX_DATA_MAP(CCaptureDlg) <;E>1*K}8
DDX_Control(pDX, IDC_KEY, m_Key); kkV*#IZ
DDX_Check(pDX, IDC_CONTROL, m_bControl); qzE
-y-9@
DDX_Check(pDX, IDC_ALT, m_bAlt); ;MKfssG
DDX_Check(pDX, IDC_SHIFT, m_bShift); <:0d%YB)
DDX_Text(pDX, IDC_PATH, m_Path); 5AAPtZ\lH
DDX_Text(pDX, IDC_NUMBER, m_Number); u6p
nO
//}}AFX_DATA_MAP PKNpR
} p~t5PU*(
hjoxx
F\_
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) McQWZ<
//{{AFX_MSG_MAP(CCaptureDlg) ')v<MqBr
ON_WM_SYSCOMMAND() TSYe~)I
ON_WM_PAINT() rWzO>v
ON_WM_QUERYDRAGICON()
\]p[DYBY#
ON_BN_CLICKED(ID_ABOUT, OnAbout) -*"Q-GO
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) I/w=!Ih
ON_BN_CLICKED(ID_CHANGE, OnChange) %-, -:e
//}}AFX_MSG_MAP lJXihr
END_MESSAGE_MAP() Eh?,-!SUQn
f5|Ew&1EP
BOOL CCaptureDlg::OnInitDialog() 8#~x6\!b
{ A/U, |
CDialog::OnInitDialog(); dI9u:-
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); JlN<w
ASSERT(IDM_ABOUTBOX < 0xF000); f{u3RCfX~2
CMenu* pSysMenu = GetSystemMenu(FALSE); 3%SwCYd
if (pSysMenu != NULL) tcS7 @^'
{ 79Si^n1\
CString strAboutMenu; /N(Ol WEp
strAboutMenu.LoadString(IDS_ABOUTBOX); 095ZZ20
if (!strAboutMenu.IsEmpty()) n42XqR
{ xs3t~o3y
pSysMenu->AppendMenu(MF_SEPARATOR); d<^o@
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); .6nNqGua1
} H$n{|YO `
} h"+|)'*n
SetIcon(m_hIcon, TRUE); // Set big icon (GJW3
SetIcon(m_hIcon, FALSE); // Set small icon s+yX82Y
m_Key.SetCurSel(0); d|(@#*{T]
RegisterHotkey(); 7|eD}=jy
CMenu* pMenu=GetSystemMenu(FALSE); N=P+b%%:Z
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); ^qlfdf
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); %?[H=v(b
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); ~%o?J"y
return TRUE; // return TRUE unless you set the focus to a control {:r8X
} h q&2o
-P>f2It
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) vg/:q>o
{ AmmUoS\
if ((nID & 0xFFF0) == IDM_ABOUTBOX) JQ.w6aE
{ U[ $A=e?\Y
CAboutDlg dlgAbout; 3d|n\!1r
dlgAbout.DoModal(); $5)ZaYx<
} 0au\X$)Q
else s&7,gWy}BE
{ ")87GQ( R
CDialog::OnSysCommand(nID, lParam); Q]}aZ4L
} gqf*;Z eU
} ,TAzJ
Tv{X$`%
void CCaptureDlg::OnPaint() ]M;aVw<!
{ !@x'?+
if (IsIconic()) b8@gv OB
{ $`&uu
CPaintDC dc(this); // device context for painting .v3~2r*&
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); P`K?k<
// Center icon in client rectangle `/mcjKQ&9y
int cxIcon = GetSystemMetrics(SM_CXICON); Iw0Q1bK(
int cyIcon = GetSystemMetrics(SM_CYICON); L[Dr[
CRect rect; i$A0_ZJKjZ
GetClientRect(&rect); ? }2]G'7?
int x = (rect.Width() - cxIcon + 1) / 2; .WR+)^&zz
int y = (rect.Height() - cyIcon + 1) / 2; C?3?<FDL
// Draw the icon XY;cz
dc.DrawIcon(x, y, m_hIcon); \666{. a
} ^=nJ,-(h_
else Zw[A1!T,
{ l 6;}nG
CDialog::OnPaint(); xCOC5f5*@
} D#T1~r4
} *k(>Qsb "
+([
iCL
HCURSOR CCaptureDlg::OnQueryDragIcon() X=<-rFW
{ #O<2wMb2<
return (HCURSOR) m_hIcon; zd+_
BPT
} 6Y|jK<n?H
u*ZRU
4U
void CCaptureDlg::OnCancel() <xm>_~,w
{ {:VUu?5-t;
if(bTray) HY,+;tf2r
DeleteIcon(); _z<y]?q
CDialog::OnCancel(); AiT&:'<UT
} y~ JCSzpU
eUyQS I4A
void CCaptureDlg::OnAbout() e>Vr#a4
{ r?s,
CAboutDlg dlg; h]rF2 B
dlg.DoModal(); LeA=*+zP[
} idLysxN
f((pRP
void CCaptureDlg::OnBrowse() 2l)J,z
{ GT[,[l
CString str; o5(p&:1M
BROWSEINFO bi; (Yzy;"iAu
char name[MAX_PATH]; .:KZ8'g3}
ZeroMemory(&bi,sizeof(BROWSEINFO)); _R!KHi
bi.hwndOwner=GetSafeHwnd(); sbZ$h
<
bi.pszDisplayName=name; gHLBtl/
bi.lpszTitle="Select folder"; V[R33NYG
bi.ulFlags=BIF_RETURNONLYFSDIRS; %rpJZ
t
LPITEMIDLIST idl=SHBrowseForFolder(&bi); D@V1}/$UoN
if(idl==NULL) G:f\wK[
return; SCClD6k=V
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); e Ir|%
str.ReleaseBuffer(); g0m6D:f
m_Path=str; Z&hzsJK{m$
if(str.GetAt(str.GetLength()-1)!='\\') pSQ)DqW
m_Path+="\\"; 78v4cQ Y
UpdateData(FALSE); _c=[P@
} lMu}|d
stDrF1{
void CCaptureDlg::SaveBmp() 03ol!|X"9
{ lP>}9^7I!
CDC dc; I$K? ,
dc.CreateDC("DISPLAY",NULL,NULL,NULL); (3YI> /#
CBitmap bm; tn-_3C
int Width=GetSystemMetrics(SM_CXSCREEN);
uqy b
int Height=GetSystemMetrics(SM_CYSCREEN); 7tOOruiC
bm.CreateCompatibleBitmap(&dc,Width,Height); W+[XNIg5
CDC tdc; vc.:du
tdc.CreateCompatibleDC(&dc); z~TG~_s
CBitmap*pOld=tdc.SelectObject(&bm); En:.U9?X
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); =yv_i]9AN
tdc.SelectObject(pOld); j?&Rf,,%
BITMAP btm; X<\y%2B|l
bm.GetBitmap(&btm); L&wJ-}'l
DWORD size=btm.bmWidthBytes*btm.bmHeight;
?*i qg[:
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); G.2ij%Zz
BITMAPINFOHEADER bih; N;cEf7+f
bih.biBitCount=btm.bmBitsPixel; #}50oWE
bih.biClrImportant=0; Byf5~OC
bih.biClrUsed=0; *Mf;
bih.biCompression=0; }]1=?:tX%
bih.biHeight=btm.bmHeight; Cx $M
bih.biPlanes=1; D8a[zXWnc
bih.biSize=sizeof(BITMAPINFOHEADER); J:
bih.biSizeImage=size; W+
tI(JZ
bih.biWidth=btm.bmWidth; yvxdl=s
bih.biXPelsPerMeter=0; HC0q_%j
bih.biYPelsPerMeter=0; i{8T 8
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); ]C|Zs=5
static int filecount=0; ^h+,Kn0@
CString name; I^iJ^Z]vx
name.Format("pict%04d.bmp",filecount++); VUXG%511T
name=m_Path+name; @5n!t1(
BITMAPFILEHEADER bfh; +NGjDa
bfh.bfReserved1=bfh.bfReserved2=0; ,?Pn-aC+
bfh.bfType=((WORD)('M'<< 8)|'B'); i"=6n>\
bfh.bfSize=54+size; Bl5*sfjG
bfh.bfOffBits=54; 8spoDb.S
CFile bf; csg:#-gE
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ `UFRv
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); e)dPv:oK3
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); kTG4h@w
bf.WriteHuge(lpData,size); JcsJfTI
bf.Close(); ("{JNA/
nCount++; QUL^]6$
} f, 9jK9/$
GlobalFreePtr(lpData); 9-;ujl?{
if(nCount==1) V5y8VT=I
m_Number.Format("%d picture captured.",nCount); P(I`^x
else }Z
T{
m_Number.Format("%d pictures captured.",nCount); )Lht}I ]:
UpdateData(FALSE);
%"GF+
} Ju3-ZFUS4
Bq~!_6fB
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) ZD{%0uh
{ (4_7ICFI
if(pMsg -> message == WM_KEYDOWN) " , c1z\
{ *<k8H5z8]
if(pMsg -> wParam == VK_ESCAPE) .'o<.\R8
return TRUE; fUQuEh5_
if(pMsg -> wParam == VK_RETURN) ,]?Xf>
return TRUE; ( lbF/F>v
} _E eH
return CDialog::PreTranslateMessage(pMsg); :0,q>w
} pEk^;
v3|-eWet^
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) mm-!UsT
{ Az4+([
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ 7'wt/9
SaveBmp(); 0yW#).D^b
return FALSE; V4cCu~(3;~
} IXb]\ )
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ j-wSsjLk
CMenu pop; ~l$u~:4Ob
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); R;,&s!\<
CMenu*pMenu=pop.GetSubMenu(0); x`8rR;N!
pMenu->SetDefaultItem(ID_EXITICON); Wyu$J
CPoint pt; "]M:+mH{]
GetCursorPos(&pt); tpe:]T/xh
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); utIR\e#:B
if(id==ID_EXITICON) N3?hyR<T
DeleteIcon(); A/n-.ci
else if(id==ID_EXIT) >ZMB}pt`
OnCancel(); +We_[Re`<
return FALSE; Il(p!l<Xz#
} *0>![v
LRESULT res= CDialog::WindowProc(message, wParam, lParam); yZup4#>8
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) <<#-IsT
AddIcon(); ~`'!nzP5H
return res; :s8^nEK
} d-e6hI4b
0* Ox>O>
void CCaptureDlg::AddIcon() X0<qG
{ @Qw~z0PE<l
NOTIFYICONDATA data; R `}C/'Ty
data.cbSize=sizeof(NOTIFYICONDATA); &R