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:
A;kAAM
ZTS*E,U% 一、实现方法
:l9C7o =~aJ]T}( 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:
kt;X|`V{5z 9,,v0tE #pragma data_seg("shareddata")
$ h_ @`j HHOOK hHook =NULL; //钩子句柄
L7Skn-*tnA UINT nHookCount =0; //挂接的程序数目
Mu:*(P/ static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
o~GhV4vq static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
s_1]&0< static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
@&M$`b
^ static int KeyCount =0;
f4w| static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
1uy+'2[Z-D #pragma data_seg()
{n1o)MZ]R N+}yw4lb 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。
$V\xN(Ed Bq@G@Qi DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
z1]RwbA?1 n7{c0;)$ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
l_}c[bAUu cKey,UCHAR cMask)
O>k. sO
< {
eN jC.w9 BOOL bAdded=FALSE;
H<FDi{ for(int index=0;index<MAX_KEY;index++){
9'4cqR if(hCallWnd[index]==0){
D@j `'&G hCallWnd[index]=hWnd;
cCj}{=U HotKey[index]=cKey;
*YDx6\><
HotKeyMask[index]=cMask;
:W'1Q2 bAdded=TRUE;
DsFrA] KeyCount++;
4s$))x9p break;
s'K0C8'U }
'rCwPsI&4 }
x&?35B
i return bAdded;
) I5f`r=Ry }
]AfeaU'> //删除热键
_|s{G BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
k'u2a {
5$O@+W!?@ BOOL bRemoved=FALSE;
I/'jRM for(int index=0;index<MAX_KEY;index++){
2=U4'C4# if(hCallWnd[index]==hWnd){
h7%< if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
g/T`4"p[H hCallWnd[index]=NULL;
w1iQ#.4K_ HotKey[index]=0;
UHxXa*HyI HotKeyMask[index]=0;
xEZvCwsb bRemoved=TRUE;
,NVQ C= KeyCount--;
^srx/6X break;
i*F^;-q) }
LdRLKE<'e }
s3t{freM }
\bfNki return bRemoved;
.+ _x|?' }
eLl;M4d Z}XA(;ck FVHEb\Z DLL中的钩子函数如下:
4S+P]U*jW zvSfW#
* LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
H!7/U_AH {
zi<C5E` BOOL bProcessed=FALSE;
Y2Y/laD if(HC_ACTION==nCode)
B(E+2;!QF {
{:!*1L if((lParam&0xc0000000)==0xc0000000){// 有键松开
nww,y switch(wParam)
^Z;5e@S {
0urQA_JC case VK_MENU:
'Kc;~a MaskBits&=~ALTBIT;
(AV j_Cw break;
gh3_})8c case VK_CONTROL:
NouT~K`' MaskBits&=~CTRLBIT;
4fQ<A <2/ break;
Br;1kQ%e C case VK_SHIFT:
T&cf6soo MaskBits&=~SHIFTBIT;
l2z@t3{ break;
G4]T default: //judge the key and send message
@2Z{en? break;
qN[U|3k }
V+-%$-w> for(int index=0;index<MAX_KEY;index++){
Jro) if(hCallWnd[index]==NULL)
f6u<.b continue;
(jtrQob if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
GK~uoz:^O {
UM3}7| SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
sA#}0>`3S bProcessed=TRUE;
'de&9\ }
&M&*3 }
-LhO
</l }
jH({Qc,97 else if((lParam&0xc000ffff)==1){ //有键按下
#Ipi 3 switch(wParam)
Kejp7okb {
l1l=52r case VK_MENU:
.J"QW~g^ MaskBits|=ALTBIT;
n
9PYZxy break;
)[+82~F case VK_CONTROL:
e#!%:M;4P MaskBits|=CTRLBIT;
m}hEi break;
N:x--,2 case VK_SHIFT:
w;W# 'pE MaskBits|=SHIFTBIT;
k<Qhw)M8 break;
d<K2
\:P{} default: //judge the key and send message
( RO-~- break;
/#jH#f[ }
`i`+yh>pc# for(int index=0;index<MAX_KEY;index++){
$>Qq 7 if(hCallWnd[index]==NULL)
=gNPS0H continue;
/s*.:cdH if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
R!f<6l8#W {
5.1z9[z SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
2Pow-o*r bProcessed=TRUE;
xP4}LL9) }
(qglD }
d|?Xo\+ }
JTIt!E}P if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
TZ&X0x8 for(int index=0;index<MAX_KEY;index++){
&S,_Z/BS; if(hCallWnd[index]==NULL)
{ETM > continue;
J2<kOXXJ9 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
KpA1Ac)T SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
&AN1xcx\ //lParam的意义可看MSDN中WM_KEYDOWN部分
Z1#u&oX }
28k=@k^q }
b7XB l }
{{jV!8wK return CallNextHookEx( hHook, nCode, wParam, lParam );
}}"pQ!Z }
gg>QXui ;z.L^V0 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
dvZH ~mF [Ur\^wS BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
D"J',YN$ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
]?pQu '-( M@#T`aS 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:
DY -5(6X !!A0K"h LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
baBBn%_V {
l% T4:p4e if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
w8XCU>
| {
.4p3~r?=S //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
s'h;a5Q1'Q SaveBmp();
@(Y!$><Is return FALSE;
8q@Z }
5BJE …… //其它处理及默认处理
0?<#! }
v8)"skVnFG ikW[lefTq _p^"l2%D/ 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。
f<NR6],} .qgUD 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。
j-":>}oW2. |5bLV^mv]i 二、编程步骤
fbNzRXw m[^lu1\wn 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";
Ho>Np& X H-_tvB 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
s
V_(9@b 3 r& 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;
$-iEcxsi {'5"i?>s0> 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
Dwp,d~z .UG`pRC 5、 添加代码,编译运行程序。
;V
xRaj? cJ;Nh>ey 三、程序代码
Jsz!ro ']r8q % ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
s/E|Z1pg3 #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
AcC &Q:g #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
FACw;/rW #if _MSC_VER > 1000
G0E5Y;YIN$ #pragma once
S/nPK,^d2 #endif // _MSC_VER > 1000
,o&C"sb #ifndef __AFXWIN_H__
*l+#<5x #error include 'stdafx.h' before including this file for PCH
d$zJLgkA #endif
4:`D3 #include "resource.h" // main symbols
rtV`Q[E class CHookApp : public CWinApp
&mwd0%4 {
jJy:/!i public:
ZJYn[\] CHookApp();
WYw#mSp // Overrides
t|aV:x // ClassWizard generated virtual function overrides
LeKovt% //{{AFX_VIRTUAL(CHookApp)
"Ms;sdjg}& public:
b 7UJ virtual BOOL InitInstance();
Yj%]|E- virtual int ExitInstance();
3JCo!n0 //}}AFX_VIRTUAL
,T$ts //{{AFX_MSG(CHookApp)
H iyg1 // NOTE - the ClassWizard will add and remove member functions here.
p/.8})c1r // DO NOT EDIT what you see in these blocks of generated code !
|>.Q U3 //}}AFX_MSG
s]arNaaA DECLARE_MESSAGE_MAP()
JU 9GJ" };
d#k(>+%=Q LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
l/eF
P BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
<W4F`6`x BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
.tngN<f BOOL InitHotkey();
T$4{fhV
\ BOOL UnInit();
$#Pxf #endif
}^
rxsx` #[93$)Gd! //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
Vwkvu&4 #include "stdafx.h"
iI3:<j
l #include "hook.h"
*rxr:y#Ve #include <windowsx.h>
} M#e\neii #ifdef _DEBUG
TT$Ao #define new DEBUG_NEW
nxLuzf4U5 #undef THIS_FILE
9d(\/
7 static char THIS_FILE[] = __FILE__;
,_[x|8m #endif
|VfEp #define MAX_KEY 100
3EoCEPb# #define CTRLBIT 0x04
t@q'm.:uw< #define ALTBIT 0x02
jLVJ+mu #define SHIFTBIT 0x01
Fn4v/)*H #pragma data_seg("shareddata")
}X(&QZ7i` HHOOK hHook =NULL;
7Cgi& UINT nHookCount =0;
pLMt2G static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
7)66e static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
U|^xr~q!f- static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
Q&9yrx. static int KeyCount =0;
d,<ni" static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
m[hL
GD'Fi #pragma data_seg()
;KeU f(tH HINSTANCE hins;
Kxe\H'rR void VerifyWindow();
h Yu6PWK BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
H4/wO //{{AFX_MSG_MAP(CHookApp)
<izQ]\kL // NOTE - the ClassWizard will add and remove mapping macros here.
.@1+}0 // DO NOT EDIT what you see in these blocks of generated code!
c-Lz luWi //}}AFX_MSG_MAP
>{#JIG. END_MESSAGE_MAP()
}Zhe%M=}G x4_IUIgh CHookApp::CHookApp()
rhv~H"qzW {
te_2"Z // TODO: add construction code here,
B(Sy.n // Place all significant initialization in InitInstance
SzULy
>e }
6].[z+ U,P_bz*) CHookApp theApp;
j"W>fC/u LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
Y&|Z*s+
+} {
z8kO)' BOOL bProcessed=FALSE;
:]3X Ez if(HC_ACTION==nCode)
<-lM9}vd {
\Z{tC$|H if((lParam&0xc0000000)==0xc0000000){// Key up
4GYi' switch(wParam)
PKm|?kn{0( {
2"/MM2s case VK_MENU:
3m1g" MaskBits&=~ALTBIT;
6BE,L break;
X>(1fra4 case VK_CONTROL:
Ky3mzw| MaskBits&=~CTRLBIT;
So%X(,
| break;
}F08o,`? case VK_SHIFT:
}\_.Mg^y MaskBits&=~SHIFTBIT;
,p2UshOmd break;
#^FM~5KK default: //judge the key and send message
1{uxpYAP=
break;
kk4 |4 }
sz7*x{E for(int index=0;index<MAX_KEY;index++){
!j~wAdHk if(hCallWnd[index]==NULL)
s 6Wp"V( continue;
(P>nA3:UXB if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
cXweg; {
bpu`'Vx SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
)\wkVAm bProcessed=TRUE;
5(;Y&?k }
I| TNo-!$ }
?G{0{c2 }
Z[O
hZ 9 else if((lParam&0xc000ffff)==1){ //Key down
Sv =YI switch(wParam)
$q!A1Fgk0 {
4:MvC^X~z case VK_MENU:
ammi4k/ MaskBits|=ALTBIT;
5SFr
E` break;
Y1r$;;sH case VK_CONTROL:
:>-zT[Lcn MaskBits|=CTRLBIT;
E|pT6 break;
^}
{r@F case VK_SHIFT:
)x-b+SC MaskBits|=SHIFTBIT;
=7!s8D,[ break;
5Fy dh0. default: //judge the key and send message
rgy
I:F. break;
<ZT
C^=3 }
wd:Yy for(int index=0;index<MAX_KEY;index++)
.Ys
e/oEo {
~EtGR #
N if(hCallWnd[index]==NULL)
T;M
;c.U continue;
Zo UeLU if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
wv~:^v' {
d` GN!^ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
<B@NSj bProcessed=TRUE;
m.++nF }
f
)Lcs }
9hr7+fW]t }
u|KjoO
if(!bProcessed){
Jp jHbG for(int index=0;index<MAX_KEY;index++){
[aSuEu?mC if(hCallWnd[index]==NULL)
QN*|_H@h continue;
&mX_\w/% if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
\.2i?<BC SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
$ :I{
}
'VVU-)(8 }
Tm^kZuT{ }
Y"
=8wNbr return CallNextHookEx( hHook, nCode, wParam, lParam );
G#[A'tbKk }
DN:|
s+Lz ;gBR~W BOOL InitHotkey()
4eWv). {
GZO:lDdA if(hHook!=NULL){
/mwUDf 6x nHookCount++;
]QlW{J return TRUE;
pZ8J\4+ }
FS}b9sQ) else
et5lfj hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
bci]"uzB
if(hHook!=NULL)
4AN8Sx( nHookCount++;
RP$u/x"b return (hHook!=NULL);
]Ea-MeH }
![Qi+xyc BOOL UnInit()
1j<uFhi> {
e-*@R#x8+ if(nHookCount>1){
7c"Csq/]I nHookCount--;
OxDqLX return TRUE;
nA0%M1a }
' pgPQM< BOOL unhooked = UnhookWindowsHookEx(hHook);
JPF6zzl) if(unhooked==TRUE){
u<8b5An; nHookCount=0;
wU|@fm" hHook=NULL;
U;/2\Ii }
_<RTes return unhooked;
#OPEYJ;*9d }
~ 1;M4K XB7*S*"! BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
*EGzFXa {
|\dv$`_T BOOL bAdded=FALSE;
`Pc6
G*p for(int index=0;index<MAX_KEY;index++){
{@CQ
( if(hCallWnd[index]==0){
0U~$u hCallWnd[index]=hWnd;
$F^VtCx2& HotKey[index]=cKey;
.;g kV-] HotKeyMask[index]=cMask;
s.p>
?U bAdded=TRUE;
|'-aR@xJ KeyCount++;
6YU,>KP break;
,r*Kxy }
FBwG3x }
Ea
S[W?u} return bAdded;
`bBkPH}M }
61Cc? a*_ b9rQQS BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
&(,\~ {
i=\)[;U BOOL bRemoved=FALSE;
2`*w* for(int index=0;index<MAX_KEY;index++){
ic`BDkNO if(hCallWnd[index]==hWnd){
#1U> if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
M>Q ZN hCallWnd[index]=NULL;
5@+?{Cl HotKey[index]=0;
8<"g&+T HotKeyMask[index]=0;
joskKik^ bRemoved=TRUE;
lGr=I-= KeyCount--;
B>c$AS\5y break;
Mq<ob+ }
N$kxf }
7:olStK }
3as=EYm return bRemoved;
by'KJxl[ }
h_?`ESI~ z(A[xN@/W< void VerifyWindow()
Hc'Pp{| X {
:.ZWYze for(int i=0;i<MAX_KEY;i++){
:pdX if(hCallWnd
!=NULL){ FA*$ dwp
if(!IsWindow(hCallWnd)){ JrOxnxd^
hCallWnd=NULL; z.8 nYL5^}
HotKey=0; sR1_L/.
HotKeyMask=0; =oI[E~1<
KeyCount--; 0]bt}rh
} SPE)db3
} D<69xT,
} I;NW!"pU
} c+3`hVV
TiI /I`A
BOOL CHookApp::InitInstance() +o`%7r(R
{ ?d3K:|g
AFX_MANAGE_STATE(AfxGetStaticModuleState()); n5kGHL2
hins=AfxGetInstanceHandle(); 2>9\o]ac4
InitHotkey(); _aevaWtEx
return CWinApp::InitInstance(); }y6@YfV${
} ~'lT8 n_
C33Jzn's
int CHookApp::ExitInstance() `z'8"s
{ <VhmtT%7
VerifyWindow(); a6n@
UnInit(); nrKAK^
return CWinApp::ExitInstance(); L@GICW~
} mv99SOe[Fz
((A@VcX
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file Ob]\t/:%P
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) HNS^:XR
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ N 62;@Z\7
#if _MSC_VER > 1000 ~ |Vqv{
#pragma once V.:,Q
#endif // _MSC_VER > 1000 !6=s{V&r1
"L]v:lg3
class CCaptureDlg : public CDialog ;GM`=M4
{ C`[2B0
// Construction m+'1c}n^7
public: #B~;j5
BOOL bTray; fQib?g/G
BOOL bRegistered; RL4|!HzR
BOOL RegisterHotkey(); J.XkdGQ
UCHAR cKey; )q_,V"
UCHAR cMask; <lFHmi$qt{
void DeleteIcon(); ?MFC(Wsh
void AddIcon(); B bmw[Qf\
UINT nCount; 9e`};DE
void SaveBmp(); u_WUJ_
CCaptureDlg(CWnd* pParent = NULL); // standard constructor Fxa{
9'99
// Dialog Data ^Ak?2,xB#+
//{{AFX_DATA(CCaptureDlg) k:?)0Uh%^
enum { IDD = IDD_CAPTURE_DIALOG }; l tNI+G
CComboBox m_Key; T4:H:
BOOL m_bControl; t }4
BOOL m_bAlt; 00;SK!+$
BOOL m_bShift; +Iuu8t
CString m_Path; %G(VYCeK
CString m_Number; 3_wR2AU~
//}}AFX_DATA OH>Gc-V
// ClassWizard generated virtual function overrides UBW,Q+Q
//{{AFX_VIRTUAL(CCaptureDlg) vWmt<E|e
public: 40=u/\/K
virtual BOOL PreTranslateMessage(MSG* pMsg); )kjQ W&)g
protected: uM'n4 oH
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support `%[m%Y9h
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); 4j0;okQWV'
//}}AFX_VIRTUAL }8 ;,2E*z
// Implementation pFd{Tdh
protected: Y*9vR~#H
HICON m_hIcon; sQ\HIU%]
// Generated message map functions &jEw(P&_
//{{AFX_MSG(CCaptureDlg) 9?sY!gXc
virtual BOOL OnInitDialog(); xr.;B`T0\'
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); Rmn|!C%%K
afx_msg void OnPaint(); /kr|}`#
Z
afx_msg HCURSOR OnQueryDragIcon(); Z~(X[Zl
:
virtual void OnCancel(); LR.]&(kyd
afx_msg void OnAbout(); _)pOkS
afx_msg void OnBrowse(); xC
+>R1)
afx_msg void OnChange(); 3s]o~I 2x
//}}AFX_MSG hyPS 6Y'1
DECLARE_MESSAGE_MAP() A]QGaWK
}; ,b^jAzow
#endif a%m>v,
i0\]^F
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file p:tp|/
#include "stdafx.h" l(QntP
#include "Capture.h" qldm"Ul
#include "CaptureDlg.h" 7a_u=\,
#include <windowsx.h> 3LQu+EsS
#pragma comment(lib,"hook.lib") &<&eKq
#ifdef _DEBUG
m5J@kE%
#define new DEBUG_NEW OP(om$xm
#undef THIS_FILE
StNA(+rT
static char THIS_FILE[] = __FILE__; V@z/%=PJ
#endif (O:&RAkk7
#define IDM_SHELL WM_USER+1 H_8PK$c;
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); ZBK)rmhMx
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); LkF*$
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; mm!JNb9(
class CAboutDlg : public CDialog m(xyEU
{ NP\/9
8|1
public: 1'&HmBfcb
CAboutDlg(); #Wl9[W/4
// Dialog Data @Z""|H"0
//{{AFX_DATA(CAboutDlg) A]'XC"lS
enum { IDD = IDD_ABOUTBOX }; hG<W*g
//}}AFX_DATA {^:i}4ZRl
// ClassWizard generated virtual function overrides j}}as
//{{AFX_VIRTUAL(CAboutDlg) gi_f8RP=2a
protected: /sB,)>X
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support l,QO+
>)z
//}}AFX_VIRTUAL PEtr8J$uB
// Implementation SrdCLT8
protected: 0x,4H30t(
//{{AFX_MSG(CAboutDlg) |BbrB[+ v[
//}}AFX_MSG xJ\sm8
DECLARE_MESSAGE_MAP() 68qCY
}; >I/~)B`jhE
cKwmtmwB
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
6l|SGt\
{ .'1]2/ad
//{{AFX_DATA_INIT(CAboutDlg) We"\nOP
//}}AFX_DATA_INIT J<iiA:&J
} tD,~i"0;
UPuG&A#VV
void CAboutDlg::DoDataExchange(CDataExchange* pDX) h&Q-QU
{ 90Z4saSUw
CDialog::DoDataExchange(pDX); hZO=$Mm4p
//{{AFX_DATA_MAP(CAboutDlg) #@uF?8u
//}}AFX_DATA_MAP /-ewCCzZV
} gEq";B%?
6bpO#&T
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) y[f6J3/
//{{AFX_MSG_MAP(CAboutDlg) >$A, B
// No message handlers AT^MQvn
//}}AFX_MSG_MAP S#ud<=@!9
END_MESSAGE_MAP() GmN~e*x>p
"4QD\k5
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) G"prq&
: CDialog(CCaptureDlg::IDD, pParent) B}h8c
{ r}XsJ$
//{{AFX_DATA_INIT(CCaptureDlg) 0yKPYA*j
m_bControl = FALSE; hL/
m_bAlt = FALSE; c6F8z75U
m_bShift = FALSE; uI&<H T?
m_Path = _T("c:\\"); 9Or
m_Number = _T("0 picture captured."); (qy82F-|2
nCount=0; v0~*?m4
bRegistered=FALSE; E1rxuV|9
bTray=FALSE; 'ul~f$
V
//}}AFX_DATA_INIT q+Qrc]>-f
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 F,$ypGr
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); m"8Gh`Fo
} DWar3+u&0
,W&::/2<7
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) [=KA5c<
{ 75#&hi/~
CDialog::DoDataExchange(pDX); ' +[fJ> Le
//{{AFX_DATA_MAP(CCaptureDlg) CXiSin
DDX_Control(pDX, IDC_KEY, m_Key); j.y8H
DDX_Check(pDX, IDC_CONTROL, m_bControl); [n;GP@A]R
DDX_Check(pDX, IDC_ALT, m_bAlt); w 7 j
hS
DDX_Check(pDX, IDC_SHIFT, m_bShift); 1W2hd!J7C
DDX_Text(pDX, IDC_PATH, m_Path); l?LP:;S
DDX_Text(pDX, IDC_NUMBER, m_Number); B[6y2+6$0
//}}AFX_DATA_MAP ZA/:\6gm
} N| L Ey
Hb{G
RG70
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) ^ s@'nKc
//{{AFX_MSG_MAP(CCaptureDlg) ,~,{$\p
ON_WM_SYSCOMMAND() F~_)auH
ON_WM_PAINT() 7IH^5r
ON_WM_QUERYDRAGICON() 5PU$D`7it
ON_BN_CLICKED(ID_ABOUT, OnAbout) /iekww^54
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) \%D/]"@r
ON_BN_CLICKED(ID_CHANGE, OnChange) (VzabO
//}}AFX_MSG_MAP LlfD>cN
END_MESSAGE_MAP() d;10[8:5=
]ZOzqh_0C
BOOL CCaptureDlg::OnInitDialog() E
_DSf
{ zS##YR
CDialog::OnInitDialog(); MHVHEwr.{
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); GGR hM1II
ASSERT(IDM_ABOUTBOX < 0xF000); 'cx&:s
CMenu* pSysMenu = GetSystemMenu(FALSE); zT5@wm
if (pSysMenu != NULL) -K K)}I`
{ L:g!f
CString strAboutMenu; s*U~Q=Z
strAboutMenu.LoadString(IDS_ABOUTBOX); !wtt KUO?
if (!strAboutMenu.IsEmpty()) HFL(t]
{ ,!RbFME&H
pSysMenu->AppendMenu(MF_SEPARATOR); ,^UNQO*{GI
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); iYJzSVO
} !?7c2QRN
} i$A0_ZJKjZ
SetIcon(m_hIcon, TRUE); // Set big icon .D`""up|{
SetIcon(m_hIcon, FALSE); // Set small icon q!
+?
m_Key.SetCurSel(0); V@xlm
h,
RegisterHotkey(); |oSx*Gh
CMenu* pMenu=GetSystemMenu(FALSE); |lijnfp
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); kR0d]"dr
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); ,
LP |M:
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); D#T1~r4
return TRUE; // return TRUE unless you set the focus to a control av&4:O!
} _[,oP s:+
1{sf Dw[s
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) zd+_
BPT
{ ly<1]jK
if ((nID & 0xFFF0) == IDM_ABOUTBOX) Q_bF^4gt
{ RQZ|:SvV
CAboutDlg dlgAbout; ?2b*FQe
dlgAbout.DoModal(); (bIg6_U7\
} Sn\S`D
else 4wZ{Z
2w
{ H
h4G3h0
CDialog::OnSysCommand(nID, lParam); l%?D%'afN
} TS9=A1J#
} ZX0ZN2 ]
i>n.r_!E
void CCaptureDlg::OnPaint() ?G[<~J3-E
{ H1(Zzn1
if (IsIconic()) K +oFu%
{ ^<8
c`k )e
CPaintDC dc(this); // device context for painting q][{?
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); g7*ii
X
// Center icon in client rectangle Hz}6XS@
int cxIcon = GetSystemMetrics(SM_CXICON); 7a@%^G @!
int cyIcon = GetSystemMetrics(SM_CYICON); :>U2yI
CRect rect; zDbjWd
GetClientRect(&rect); 6t0!a@t
int x = (rect.Width() - cxIcon + 1) / 2; Yq;|Me{h
int y = (rect.Height() - cyIcon + 1) / 2; A4,tv#z
// Draw the icon } PD]e*z{Z
dc.DrawIcon(x, y, m_hIcon); IR (6
} nR7 usL
else JJHr<|K
{ yJx{6
CDialog::OnPaint();
5:mS~
} FhZ^/= As
} (nk)'ur.
oT7=
HCURSOR CCaptureDlg::OnQueryDragIcon() _zG9.?'b3
{ PiD%PBmUl
return (HCURSOR) m_hIcon; 3siWq9.
} @V/Lqia
Y}_J@&:
void CCaptureDlg::OnCancel() MB9tnGO-Q
{ =yv_i]9AN
if(bTray) cqzd9L6=
DeleteIcon(); OI3UC=G
CDialog::OnCancel();
?*i qg[:
} jtdhdA
FgIL Q"+
void CCaptureDlg::OnAbout() ~7$E\w6
{ *Mf;
CAboutDlg dlg; S/}6AX#F4
dlg.DoModal(); B3V:? #
} t?NB#/#%x
)3_I-Ia
void CCaptureDlg::OnBrowse() $dAQ'\f7
{ | ,bCYK
CString str; i)nb^
BROWSEINFO bi; aRBTuLa)fo
char name[MAX_PATH]; 6"^Yn.
ZeroMemory(&bi,sizeof(BROWSEINFO)); \Q+9sV
5,[
bi.hwndOwner=GetSafeHwnd(); ,3_;JT"5
bi.pszDisplayName=name; UUy%:t
bi.lpszTitle="Select folder"; i6R2R8
bi.ulFlags=BIF_RETURNONLYFSDIRS; 2s, [DC
LPITEMIDLIST idl=SHBrowseForFolder(&bi); v)|[=
if(idl==NULL) ;[%_sVIy
return; #s JE{Tb
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); 7cx~?xk <m
str.ReleaseBuffer(); (are2!Oq
m_Path=str; Qq;` 9-&j
if(str.GetAt(str.GetLength()-1)!='\\') W=T3spV
m_Path+="\\"; 7n*,L5%?]4
UpdateData(FALSE); `Tt}:9/3
} 3w9j~s
&fJ92v?%^S
void CCaptureDlg::SaveBmp() S pxkB!
{ 5mB%Xh;bg
CDC dc; t0_o.S
dc.CreateDC("DISPLAY",NULL,NULL,NULL); m,nZrap
CBitmap bm; 0z)
8i P
int Width=GetSystemMetrics(SM_CXSCREEN); w=EUwt
int Height=GetSystemMetrics(SM_CYSCREEN); h8;B +#f`
bm.CreateCompatibleBitmap(&dc,Width,Height); ;K<e]RI;?
CDC tdc; 'N$hbl
tdc.CreateCompatibleDC(&dc); |4uH
CBitmap*pOld=tdc.SelectObject(&bm); ":E^&yQ
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); \u@4eBAV
tdc.SelectObject(pOld); jf0D
BITMAP btm; d (Ufj|;
bm.GetBitmap(&btm); ,bT|:T@ny
DWORD size=btm.bmWidthBytes*btm.bmHeight;
nU]n]gd
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); 2N_8ahc
BITMAPINFOHEADER bih; a1Q|su{H
bih.biBitCount=btm.bmBitsPixel; 68ce+|
bih.biClrImportant=0; RAMkTS
bih.biClrUsed=0; @y%4BU&>0
bih.biCompression=0; cIqk=_]
bih.biHeight=btm.bmHeight; 4Q2=\-KFj
bih.biPlanes=1; D=}UKd
bih.biSize=sizeof(BITMAPINFOHEADER); YXE?b@W"
bih.biSizeImage=size; /BB(riG
bih.biWidth=btm.bmWidth; _@I8B
bih.biXPelsPerMeter=0; 0$)CWah
bih.biYPelsPerMeter=0; 0TA{E-A
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); *0>![v
static int filecount=0; }{>)2S
CString name; qfp,5@p
name.Format("pict%04d.bmp",filecount++); %lVc7L2]
name=m_Path+name; i#/,Q1yEn
BITMAPFILEHEADER bfh; Jt79M(Hp!
bfh.bfReserved1=bfh.bfReserved2=0; 0zrgK;9
bfh.bfType=((WORD)('M'<< 8)|'B'); EBjSK/
bfh.bfSize=54+size; O;RsYs9
bfh.bfOffBits=54; MD(?Wh
CFile bf; >TSPEvWc
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ 8bQ\7jb
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); `#O%ZZ+
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); O$QtZE61
bf.WriteHuge(lpData,size); lJaR,,
bf.Close(); sT.;*3{
nCount++; gO>XNXN{
} (Fc\*Vn
GlobalFreePtr(lpData); *v1M^grKd
if(nCount==1) yW::`
m_Number.Format("%d picture captured.",nCount); L?~>eT
else ? yL3XB>
m_Number.Format("%d pictures captured.",nCount); 0p6
UpdateData(FALSE); 5`su^
} RmF,x9
{ +d](+$
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) ra87~kj<
{ l&rS\TCkp
if(pMsg -> message == WM_KEYDOWN) 0,~f"Dyqy
{ 5%H(AaG*q
if(pMsg -> wParam == VK_ESCAPE) HEqTlnxUu
return TRUE; !O;su~7
if(pMsg -> wParam == VK_RETURN) ?`9XFE~a!
return TRUE; yV{&x
} _+c' z
return CDialog::PreTranslateMessage(pMsg); CC{*'p6
} JmMB=}
<
D~~"wos
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) ;/ wl.'GA
{ ~_l@
_P5yz
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ --S1p0
SaveBmp(); 5ynBVrYf
return FALSE; !VLk|6mn
} }s+ t*z
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ ;v#BguM
CMenu pop; E[Xqyp!<
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); E6 g]EE
CMenu*pMenu=pop.GetSubMenu(0); }%8 :8_Ke
pMenu->SetDefaultItem(ID_EXITICON); G909R>
CPoint pt; pm2-F]
GetCursorPos(&pt); BZJ\tPSR
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); 'SW%EVB
if(id==ID_EXITICON) KjWF;VN*[3
DeleteIcon(); I |PEC-(
else if(id==ID_EXIT) <x!q!;
OnCancel(); GGM|B}U p
return FALSE; CdEQiu
} )2z<5 `
LRESULT res= CDialog::WindowProc(message, wParam, lParam); wDQ@$T^vh
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) I45 kPfu
AddIcon(); }l>\D~:M
return res; ^_4e^D]P"
} 64LX[8Ax#
}4uHT.)
void CCaptureDlg::AddIcon() <USK6!-G
{ lr*p\vH
NOTIFYICONDATA data; !Y8+Z&^2
data.cbSize=sizeof(NOTIFYICONDATA); #r|qitL3
CString tip; ._E 6?
tip.LoadString(IDS_ICONTIP); E,kDy:
data.hIcon=GetIcon(0); cp:U@Nh(
data.hWnd=GetSafeHwnd(); "|Ke/0rGB
strcpy(data.szTip,tip); o5@d1A
data.uCallbackMessage=IDM_SHELL; 4Wd
H!z
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; zb]e{$q2C
data.uID=98; sH'IA~7
Shell_NotifyIcon(NIM_ADD,&data); oSf6J:?*e
ShowWindow(SW_HIDE); 3 <