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:
]&tr\-3
odT7Gq 一、实现方法
/>j+7ts BNKo6:wy 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:
fKK-c9F Xe^=(| M #pragma data_seg("shareddata")
x2IU PM HHOOK hHook =NULL; //钩子句柄
JI#Enh!Lv UINT nHookCount =0; //挂接的程序数目
_F$t#.o static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
+\(ay"+ d static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
s)'_{ A"h static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
kjKpzdbD static int KeyCount =0;
JgjL$n;F static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
dmMr8-w #pragma data_seg()
< $?}^
0R @Y<ZT;J 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。
>*Z{@1*h f8_UIdM7 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:
yp/V8C JU,ROoz( BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
hq[gj?P cKey,UCHAR cMask)
nJ0eZBgB] {
z o))x( BOOL bAdded=FALSE;
1NHoIX for(int index=0;index<MAX_KEY;index++){
,8 -_=* if(hCallWnd[index]==0){
$6x:aG*F hCallWnd[index]=hWnd;
F3r HotKey[index]=cKey;
lp%.n= '\ HotKeyMask[index]=cMask;
JX,#W!d bAdded=TRUE;
1AkHig, KeyCount++;
YM/3VD break;
O.8m%ZjD }
)Ai%wCzw* }
YH+\rb_ return bAdded;
gm\o>YclS }
x]01j4HJ //删除热键
48NXj\L[y BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
6!D {
H5MAN,` BOOL bRemoved=FALSE;
58ZiCvqv for(int index=0;index<MAX_KEY;index++){
?)QBJ9F if(hCallWnd[index]==hWnd){
W[Ew6)1T if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
AT'$VCYC( hCallWnd[index]=NULL;
sTstc+w HotKey[index]=0;
6rC P]YnF HotKeyMask[index]=0;
nX aX= bRemoved=TRUE;
(<~R[sT| KeyCount--;
>oaEG5%d break;
v2X0Px_ }
F3|pS: }
]Sx=y< }
ysn[-l# return bRemoved;
yN f=Kl }
nKJ7K8) kITmo"$K iwx0V DLL中的钩子函数如下:
`Ta(P30
KGwL09) LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
\#c+vfq {
ph (k2cb BOOL bProcessed=FALSE;
b2kbuk] if(HC_ACTION==nCode)
!*.
nR(>d {
0aoHv if((lParam&0xc0000000)==0xc0000000){// 有键松开
v 5ddb) switch(wParam)
f<:SdtG5 {
gJ~*rWBK: case VK_MENU:
>} (*s^!k MaskBits&=~ALTBIT;
:q[n1
O[Ch break;
BU{V,|10a case VK_CONTROL:
.wn_e=lT MaskBits&=~CTRLBIT;
tpzdYokh> break;
,$ret@.H case VK_SHIFT:
!PTbR4s MaskBits&=~SHIFTBIT;
(G!J== break;
4$w-A-\t default: //judge the key and send message
BcO2* 3 break;
$5(%M8qmQ }
#;\;F PuZ for(int index=0;index<MAX_KEY;index++){
`%I{l if(hCallWnd[index]==NULL)
##ea-"m8 continue;
t|"d#5' if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
;9\0x {
Nmq5Tv SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
m:<3d]L bProcessed=TRUE;
d"a7{~l }
7%}}m&A7h }
vXZz=E
AH }
Z"KuS else if((lParam&0xc000ffff)==1){ //有键按下
MpvA-- switch(wParam)
!h(0b*FUJ {
UimZ/\r case VK_MENU:
~?+m=\ MaskBits|=ALTBIT;
~i#xjD5 break;
l:/V%{sx case VK_CONTROL:
o*BI^4 MaskBits|=CTRLBIT;
CrQ&-!Eh break;
rmoEc]kt] case VK_SHIFT:
^Exq=oV MaskBits|=SHIFTBIT;
e(N <Mf break;
n=MYv(Pp} default: //judge the key and send message
jM<Ihmh| break;
7B :aJfxM }
-^"?a]B for(int index=0;index<MAX_KEY;index++){
?q&mI* j! if(hCallWnd[index]==NULL)
," R_ve continue;
'F~SNIay if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
J0plQDe {
+ zPg`/ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
R7b*(33 bProcessed=TRUE;
=D$r5D/xd }
->{WO+6( }
+JVfnTd }
@C)h;TR if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
GQNiBsV for(int index=0;index<MAX_KEY;index++){
W5g!`f if(hCallWnd[index]==NULL)
+:Zi(SuS] continue;
X;RI7{fW%X if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
^/,yZ: SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
mmK_xu~f28 //lParam的意义可看MSDN中WM_KEYDOWN部分
U<gw<[>f }
<a3XV }
)$g/PQ }
}PuO$
L return CallNextHookEx( hHook, nCode, wParam, lParam );
:AGQkJb }
=MLL-a1 ir?9{t/() 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:
Ip-jqN J~ i*>yUav" BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
<3CrCEPC BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
'm:B(N@+ |sAg@kM 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:
{` PdnK@a LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
8~>3&jX {
DR=1';63 if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
Rgu^>
~ {
YT8`Vz$+ //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
8A_(]Q SaveBmp();
n\Nl2u& m return FALSE;
(7
iMIY }
s:H1v&t,< …… //其它处理及默认处理
I78pul8! }
\[jItg,+ v$Z1Lh cxdM!L; ` 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。
(5
hu
W7v XPKcF I= 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。
(
PlNaasV `6su_8Hno 二、编程步骤
sJ=B:3jS0 {D< ?.' 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";
wl9icrR> "Xc=<rX 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
Bw[V K7 5 <poN)" 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;
:8
:>CHa Nx'j+>bz>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;
#u^d3
$Nj 39#>C~BOl 5、 添加代码,编译运行程序。
(""&$BJQ| o~p^`5# 三、程序代码
(ShJ! Gx($q;8 ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
Sq%R #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
vD t?N9 #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
*fZ'#C~x #if _MSC_VER > 1000
g.Q ?Z{ #pragma once
)&K%Me #endif // _MSC_VER > 1000
M-hnBt #ifndef __AFXWIN_H__
XlPy(> #error include 'stdafx.h' before including this file for PCH
k$c!J'qL& #endif
we3t,?`rk7 #include "resource.h" // main symbols
Lq.k?!D3uh class CHookApp : public CWinApp
bql6Z1l {
d|3[MnU[a public:
A\>qoR!Y CHookApp();
&/p9+gd // Overrides
PR0]:t)E // ClassWizard generated virtual function overrides
/<~IKVz\& //{{AFX_VIRTUAL(CHookApp)
t*#T~3p public:
J5wq}<8 virtual BOOL InitInstance();
Zh*I0m virtual int ExitInstance();
w'C(? ?mH //}}AFX_VIRTUAL
FU zY&@Y //{{AFX_MSG(CHookApp)
=
4L. // NOTE - the ClassWizard will add and remove member functions here.
e!#:h4I // DO NOT EDIT what you see in these blocks of generated code !
wuCODz@~ //}}AFX_MSG
t [f] DECLARE_MESSAGE_MAP()
#"l=Lv };
KVBz= LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
:s\s3#? BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
$l=m?r= BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
CAfG3;
BOOL InitHotkey();
:v`o=" BOOL UnInit();
gueCP+a_ #endif
8}2
`^<U *
-)aGL //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
oID,PB*9 #include "stdafx.h"
&LE/hA #include "hook.h"
wbTw\b= #include <windowsx.h>
<#sK~G #ifdef _DEBUG
x\WKsc #define new DEBUG_NEW
NeH^g0Q2,g #undef THIS_FILE
GI/o!0"_ static char THIS_FILE[] = __FILE__;
70@:!HI] #endif
xQ4Q '9 #define MAX_KEY 100
}/=_ #define CTRLBIT 0x04
Yyf8B #define ALTBIT 0x02
tP3Upw"U #define SHIFTBIT 0x01
<?+\\Z!7 #pragma data_seg("shareddata")
Ad(j&P HHOOK hHook =NULL;
idHBz*3~ps UINT nHookCount =0;
%VgR * static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
r?{tBju^ static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
6B=J*8
Hs static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
sHNt>5p static int KeyCount =0;
cOSUe_S0w[ static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
TeHR,GB #pragma data_seg()
^VD14V3 HINSTANCE hins;
;-59#S&?tB void VerifyWindow();
2]|+.9B BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
sNWj+T //{{AFX_MSG_MAP(CHookApp)
/}Max@.` // NOTE - the ClassWizard will add and remove mapping macros here.
k#
/_Zd // DO NOT EDIT what you see in these blocks of generated code!
$4m{g"xL //}}AFX_MSG_MAP
z?7pn}- END_MESSAGE_MAP()
Lq:Z='Kc ]`%cTdpLj CHookApp::CHookApp()
C
7v
8 {
:7'anj // TODO: add construction code here,
\O[Cae:^? // Place all significant initialization in InitInstance
n,`&f~tap }
` 6PdMvF w;XX jT CHookApp theApp;
uTQ/_$
LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
O:4.xe {
opKtSF|) BOOL bProcessed=FALSE;
gqE{ if(HC_ACTION==nCode)
@l 1 piz8 {
K:mb$YJ& if((lParam&0xc0000000)==0xc0000000){// Key up
\%UA6uj switch(wParam)
JHcC}+H[ {
vb# d%1b5 case VK_MENU:
UhNeY{6 MaskBits&=~ALTBIT;
f -bVcWI break;
Xcb\N case VK_CONTROL:
{C
[7V{4(% MaskBits&=~CTRLBIT;
[!"u&iu` break;
C Z|R-ky6p case VK_SHIFT:
KdUmetx1 MaskBits&=~SHIFTBIT;
bx1' break;
o}<}zTU default: //judge the key and send message
S>nM&758 break;
-YD6 }
7yK
> for(int index=0;index<MAX_KEY;index++){
5E$)Ip if(hCallWnd[index]==NULL)
L0}"H
. continue;
#,Rmu if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
~Os~pTo {
ip~PF5 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
^b'[81% bProcessed=TRUE;
A >Js`s }
C]82Mt }
Jjv,
)@yo }
uGOvZO^v else if((lParam&0xc000ffff)==1){ //Key down
]w({5i switch(wParam)
c8A
// {
!$P&`n]@ case VK_MENU:
Ie4}F|#= MaskBits|=ALTBIT;
&{99Owqg break;
0GEK xV\F case VK_CONTROL:
jvA]EN6$;~ MaskBits|=CTRLBIT;
mV6\gR[h break;
M(xd:Fa? case VK_SHIFT:
kP3'BBd, MaskBits|=SHIFTBIT;
C*=#=.~~{ break;
p "u5wJ_ default: //judge the key and send message
Ji gc@@B. break;
jT%k{"+>+? }
i!9yN:m0 for(int index=0;index<MAX_KEY;index++)
K[O'@v {
s#>Bwn&b) if(hCallWnd[index]==NULL)
j*xxOwf continue;
{x
s{ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
ULj'DzlfH {
iXeywO2nP SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
zmF_-Q`c bProcessed=TRUE;
F|9
W7 }
Qn_*(CSp }
h5>JBLawQP }
7YrX3Hx8 if(!bProcessed){
46Vx)xX for(int index=0;index<MAX_KEY;index++){
Mz_*`lRN if(hCallWnd[index]==NULL)
|}t[-a continue;
;vnG if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
\^i/: SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
C[gy{40} }
CNQ>J`4 }
HsO4C)/ }
B/7c`V return CallNextHookEx( hHook, nCode, wParam, lParam );
t[|^[%i }
va[@XGaC3 )Z2HzjE BOOL InitHotkey()
X H,1\J-S {
A70x+mjy^T if(hHook!=NULL){
=y.? =`" nHookCount++;
%i:Sf return TRUE;
rjHL06qE }
eKsc [" else
PQDWY hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
ED[`Y.; if(hHook!=NULL)
|hk?'WGc`0 nHookCount++;
gq\ulLyOeZ return (hHook!=NULL);
$n.oY5=\ }
XDRw![H,~ BOOL UnInit()
M:YtW5{ {
kWZ?86! if(nHookCount>1){
=J:6p-\* nHookCount--;
$9)| cO return TRUE;
'tm%3`
F }
T*e>_\Tx BOOL unhooked = UnhookWindowsHookEx(hHook);
S3l$\X;6X if(unhooked==TRUE){
}&M$ nHookCount=0;
+zn&DG0\X hHook=NULL;
D-JG0.@ }
KF(N=?KO return unhooked;
<?znk8| }
?VaWOwWI s~V%eq("} BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
9M8n {
_\uyS', BOOL bAdded=FALSE;
/i.3v45t" for(int index=0;index<MAX_KEY;index++){
(r78AZ if(hCallWnd[index]==0){
qRC-+k:
hCallWnd[index]=hWnd;
oP vk ^H HotKey[index]=cKey;
'@t}8J HotKeyMask[index]=cMask;
K)"lq5nM bAdded=TRUE;
:!Ea.v KeyCount++;
5'*v-l,[ break;
4'9yMXR }
K)=<hL }
M*6}# ST return bAdded;
IWc?E }
tj<a , l [Tmpj9!q BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
`_M*2(rt {
W{'RR. BOOL bRemoved=FALSE;
!0p_s;uu,W for(int index=0;index<MAX_KEY;index++){
t|XQFb@} if(hCallWnd[index]==hWnd){
Cp {
j+Ia if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
8Evon&G59 hCallWnd[index]=NULL;
4K{<R!2I HotKey[index]=0;
` 9iB`< HotKeyMask[index]=0;
gK7bP'S8H bRemoved=TRUE;
St 4YNS.| KeyCount--;
,z8<[Q-# break;
vK@t=d }
L!2BE[~ }
+OM`c7M: }
EdgcdSb7 return bRemoved;
lyZ[tP S }
<B"M} Y>_P N3 O~_=/v? void VerifyWindow()
UM[<v9NWE {
0{0BL@H for(int i=0;i<MAX_KEY;i++){
^6c=[N$aW if(hCallWnd
!=NULL){ =\u QGH
if(!IsWindow(hCallWnd)){ wX7|a/|@
hCallWnd=NULL; c:>&iB-Yu
HotKey=0; ZoFQJJK56B
HotKeyMask=0; PH$fDbC8
KeyCount--; $d:>(_p=A
} "lU%Pm]>
} 'Ll,HgU;
} CB&$tDi
} #I]5)XT
.~>Uh3S
BOOL CHookApp::InitInstance() X"'c2gaa_
{ T8*<
AFX_MANAGE_STATE(AfxGetStaticModuleState()); O:K={#Xj
hins=AfxGetInstanceHandle(); `VJJ"v<L
InitHotkey(); R>
r@[$z+
return CWinApp::InitInstance(); vbXZ Z
} +*Um:}&
Jng,:$sZ
int CHookApp::ExitInstance() srX" vF
{ q>JW$8
VerifyWindow(); U2~7qC,!Do
UnInit(); '8 O(J7J
return CWinApp::ExitInstance(); yDk|ad|
} N^u,C$zP9C
dM|&Y6
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file 7*D*nY4+
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) 7soiy
A
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ 9t `
#if _MSC_VER > 1000 Xn<~ln
#pragma once #:C?:RMS
#endif // _MSC_VER > 1000 {OK+d#=
^&nC)T<w
class CCaptureDlg : public CDialog :
5=E>!
{ X}!r4<;(
// Construction -5v2E-
public: HW0EP J
BOOL bTray; j9sK P]w
BOOL bRegistered; Zjo8/
BOOL RegisterHotkey(); XI>|"*-l
UCHAR cKey; aq a%B
UCHAR cMask; }digw(
void DeleteIcon(); 1O<Gg<<,e
void AddIcon(); 5)%bnLxn
UINT nCount; Km)5;BQxg
void SaveBmp(); $m$tfa-
CCaptureDlg(CWnd* pParent = NULL); // standard constructor =e<;B_~.
// Dialog Data y1zNF$<q
//{{AFX_DATA(CCaptureDlg) W`$D*X0*o
enum { IDD = IDD_CAPTURE_DIALOG }; {u/G!{N$
CComboBox m_Key; Z @:5vo
BOOL m_bControl; u!iBAr5
BOOL m_bAlt; J|ni'Hb
BOOL m_bShift; ubq4Zv7'
CString m_Path; hN~]$"@2
CString m_Number; 8(GH.)I+0
//}}AFX_DATA Mo4#UV
// ClassWizard generated virtual function overrides <ZF,3~v?
//{{AFX_VIRTUAL(CCaptureDlg) F0cde
public: %TO=]>q
virtual BOOL PreTranslateMessage(MSG* pMsg); %D::$,;<<
protected: q?Jd.r5*
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support uydy[n\
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); 2(s+?n.N
//}}AFX_VIRTUAL IV"OzQONx
// Implementation ^>?E1J3u
protected: s|/m}n
HICON m_hIcon; sk0N=5SB-
// Generated message map functions D/T&0
//{{AFX_MSG(CCaptureDlg) 0zSRk]i.f
virtual BOOL OnInitDialog(); dr25;L? B
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); FW?zJ
afx_msg void OnPaint(); QFg,pTj
afx_msg HCURSOR OnQueryDragIcon(); m
6Xex.d
virtual void OnCancel(); !^o(?1
afx_msg void OnAbout(); 6##}zfl
afx_msg void OnBrowse(); I=N;F6
afx_msg void OnChange(); bu;3Ib3\
//}}AFX_MSG @y{i.G
DECLARE_MESSAGE_MAP() pHW
Qk z(
}; 5IK -V)
#endif uVO*@Kj+
Pc=S^}+
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file UKIDFDn6_
#include "stdafx.h" cBgdBPDa
#include "Capture.h" ^LA.Y)4C2%
#include "CaptureDlg.h" 2>Uy`B|f
#include <windowsx.h> FQV]/
#pragma comment(lib,"hook.lib") L&C<-BA/
#ifdef _DEBUG nG0Uv%?{pj
#define new DEBUG_NEW c&A;0**K,
#undef THIS_FILE --ED]S
8
static char THIS_FILE[] = __FILE__; 5&&6e`
#endif
2r3]DrpJ
#define IDM_SHELL WM_USER+1 ] D(laqS;"
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); ?DN4j!/$
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); e ]@Ex
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; (}$~)f#s
class CAboutDlg : public CDialog 6mawcK:7
{ qDOJ;>I
public: 2u0dn?9\
CAboutDlg(); C'iJFfgR
// Dialog Data (9;qV:0`
//{{AFX_DATA(CAboutDlg) Gi<ik~
enum { IDD = IDD_ABOUTBOX }; 6 (:^>@
//}}AFX_DATA X>i`z
// ClassWizard generated virtual function overrides Ch`nDIne
//{{AFX_VIRTUAL(CAboutDlg) 0YMmW xV
protected: s_(%1/{
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support uYh6q1@"~
//}}AFX_VIRTUAL gk%8iT
// Implementation 8,E#vQ55}(
protected: |]qwD,eiH,
//{{AFX_MSG(CAboutDlg) 1[QH68
//}}AFX_MSG $V X<UK$|s
DECLARE_MESSAGE_MAP() TEgmE9^`)7
}; ;%Z%]nIS
Tum9Xa
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) \u|8MEB
{ i- Le&
//{{AFX_DATA_INIT(CAboutDlg) 0(owFNUBs
//}}AFX_DATA_INIT 2r+@s g
} 6Y#-5oEu/
Vrz6<c-'B
void CAboutDlg::DoDataExchange(CDataExchange* pDX) Q77iMb]
{ NW}kvZ
CDialog::DoDataExchange(pDX); W#pA W
//{{AFX_DATA_MAP(CAboutDlg) rcc.FS
//}}AFX_DATA_MAP !PCw-&
} =~Ac=j!q
$N7:;X"l
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) X%+FM]
//{{AFX_MSG_MAP(CAboutDlg) $,vZX u|Qw
// No message handlers {H$F!}a
//}}AFX_MSG_MAP !fFmQ\|)4S
END_MESSAGE_MAP() *fBI),bZa
91oIx W
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) V^qZ~US
: CDialog(CCaptureDlg::IDD, pParent) Vt_NvPB`
{ F8q &v"
//{{AFX_DATA_INIT(CCaptureDlg) O*af`J{
m_bControl = FALSE; {C=d9z~:
m_bAlt = FALSE; 4KB)UPW
m_bShift = FALSE; jV_Eyi3
m_Path = _T("c:\\"); jni }o m
m_Number = _T("0 picture captured."); :!vDX2o)\
nCount=0; X
X>Y]P
a
bRegistered=FALSE; E6);\SJG}
bTray=FALSE; oR.KtS$uh
//}}AFX_DATA_INIT d2w;d&2S
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 AJRfl% 3
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); (-\,t
} *+p9u 1B5
;SBM7fwRk
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) @Q"%a`mKH
{ &hmyfH&S
CDialog::DoDataExchange(pDX); c;,jb
//{{AFX_DATA_MAP(CCaptureDlg) DzLm~
aF
DDX_Control(pDX, IDC_KEY, m_Key); MB<oWH[e)
DDX_Check(pDX, IDC_CONTROL, m_bControl); [CH%(#>i~
DDX_Check(pDX, IDC_ALT, m_bAlt); %m'd~#pze
DDX_Check(pDX, IDC_SHIFT, m_bShift); 1=DUFl.
DDX_Text(pDX, IDC_PATH, m_Path); >w:px$g4
DDX_Text(pDX, IDC_NUMBER, m_Number); ziuhS4k
//}}AFX_DATA_MAP a#X[V5|6Q
} s[:e '#^
-\;x>=#B
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) e![|-m%
//{{AFX_MSG_MAP(CCaptureDlg) IX eb6j8
ON_WM_SYSCOMMAND() thk33ss:
ON_WM_PAINT() CtbmX)vE
ON_WM_QUERYDRAGICON() ;9,<&fe
ON_BN_CLICKED(ID_ABOUT, OnAbout) ;0V{^
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) @] .Ko[P~
ON_BN_CLICKED(ID_CHANGE, OnChange) ]R^?Pa1Te4
//}}AFX_MSG_MAP }U$Yiv
END_MESSAGE_MAP() A_: Bz:
YQ>M&lnQ<
BOOL CCaptureDlg::OnInitDialog() [guJd";
{ ~4th;#'
CDialog::OnInitDialog(); @?_<A%hz
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); S#{e@ C
ASSERT(IDM_ABOUTBOX < 0xF000); M%f96XUM
CMenu* pSysMenu = GetSystemMenu(FALSE); i(q%EMf
if (pSysMenu != NULL) H*_:IfI!
{ #uNQ+US0
CString strAboutMenu; c ?mCt0Cg
strAboutMenu.LoadString(IDS_ABOUTBOX); Bb];qYuCO
if (!strAboutMenu.IsEmpty()) .bbl-a/
3
{ -yt[0
pSysMenu->AppendMenu(MF_SEPARATOR); 7O{c>@\
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); /?l@7
} P@'<OI
} RE]u2R6Y
SetIcon(m_hIcon, TRUE); // Set big icon ,.u7([SGm
SetIcon(m_hIcon, FALSE); // Set small icon s OD>mc#%Y
m_Key.SetCurSel(0); _yTGv-
RegisterHotkey(); ' } rUbJo
CMenu* pMenu=GetSystemMenu(FALSE); 8D
eRs#
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); k<uC[)_
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); sfez0Uqe.~
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); vukI`(#
return TRUE; // return TRUE unless you set the focus to a control @bdGV#*d
} /jih;J|
//VgPl
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) +*[lp@zU{
{ ;4of7d
if ((nID & 0xFFF0) == IDM_ABOUTBOX) kS[xwbE
{ .63:G<
CAboutDlg dlgAbout; 5haJPWG|'
dlgAbout.DoModal(); xMDx<sk
} e!*d(lHKos
else 0|8c2{9X,
{ }6}Gj8Nb
CDialog::OnSysCommand(nID, lParam); ~;W]0d4,\
} MWGW[V;
} Q9)/INh
<#w0=W?
void CCaptureDlg::OnPaint() [ajF
{ w> `3{MTQ
if (IsIconic()) BY"<90kBL
{ zzi%r=%r&
CPaintDC dc(this); // device context for painting F*rU=cu
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); HjKj.fV
// Center icon in client rectangle qsXK4`
int cxIcon = GetSystemMetrics(SM_CXICON); zghUwW |K
int cyIcon = GetSystemMetrics(SM_CYICON); h9c54Ux
CRect rect; MGeHccqh2
GetClientRect(&rect); ]+Yd#<j(u
int x = (rect.Width() - cxIcon + 1) / 2; QbqEe/*$_
int y = (rect.Height() - cyIcon + 1) / 2; UOH2I+@V
// Draw the icon "NSm2RU3
dc.DrawIcon(x, y, m_hIcon); +=hiLfnE
} j[Uul#
else # 4_'%~-e
{ hv te)
CDialog::OnPaint(); ?B@(W(I
} c.m8~@O5+
} j`Fsr?]/
/>_Mz
HCURSOR CCaptureDlg::OnQueryDragIcon() ?e9Acc`G5
{ fdGls`H
return (HCURSOR) m_hIcon; ]N!382
} *@|d7aiO
IQxY]0\uf6
void CCaptureDlg::OnCancel() %M^X>S\%
{ eZR{M\Q
if(bTray) wQJY,|.
DeleteIcon(); UN[rW0*
CDialog::OnCancel(); "jly[M}C
} 5$0@f`sj
|=2E?&%?
void CCaptureDlg::OnAbout() MHmaut#
{ :Lqz`
CAboutDlg dlg; Rok`}t
dlg.DoModal(); q:@$$}FjL
} %k
@ "*
msOk~ZPE6\
void CCaptureDlg::OnBrowse() OoTMvZP[
{ vBAds
CString str; 7H~StdL/>
BROWSEINFO bi; i]!CH2\
char name[MAX_PATH]; :$j6
ZeroMemory(&bi,sizeof(BROWSEINFO)); #` )zD"CO
bi.hwndOwner=GetSafeHwnd(); W-zD1q~0?
bi.pszDisplayName=name; _P.+[RS@
bi.lpszTitle="Select folder"; p*E_Po
bi.ulFlags=BIF_RETURNONLYFSDIRS; o,(MB[|hQ
LPITEMIDLIST idl=SHBrowseForFolder(&bi); WgPpW!`
if(idl==NULL) K4NB#
return; #FKo:id`K
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); We%-?l:"
str.ReleaseBuffer(); )B.NV<m
m_Path=str; lR_ 4iyqb
if(str.GetAt(str.GetLength()-1)!='\\') =qiX0JT
m_Path+="\\"; l/0TNOA
UpdateData(FALSE); 9{_D"h}}
} X>l
@1ZLr
void CCaptureDlg::SaveBmp() ?kvkkycI
{ #R v&b@K
CDC dc; lx,^Y647
dc.CreateDC("DISPLAY",NULL,NULL,NULL); /Ps}IW
CBitmap bm; ujsJ;\c
int Width=GetSystemMetrics(SM_CXSCREEN); '|Dm\cy
int Height=GetSystemMetrics(SM_CYSCREEN); VXlTA>a }
bm.CreateCompatibleBitmap(&dc,Width,Height); bSsX)wHm
CDC tdc; ]@_M)[ x
tdc.CreateCompatibleDC(&dc); A$vCm
CBitmap*pOld=tdc.SelectObject(&bm); j*aN_UTr3
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); :[P>e
ox
tdc.SelectObject(pOld); Rda o
BITMAP btm; LyR to
bm.GetBitmap(&btm); ?LAKH$t
DWORD size=btm.bmWidthBytes*btm.bmHeight; G>f-w F6
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); 7@al)G;~
BITMAPINFOHEADER bih; MFO}E!9`q
bih.biBitCount=btm.bmBitsPixel; &o*/6X
bih.biClrImportant=0; Vvu+gP'z.
bih.biClrUsed=0; A7SBm`XJ)p
bih.biCompression=0; 1V(tt{
bih.biHeight=btm.bmHeight; ;=.VKW%U
bih.biPlanes=1; 9NLO{kN
bih.biSize=sizeof(BITMAPINFOHEADER); {FyGh
*/
bih.biSizeImage=size; nsk`nck
bih.biWidth=btm.bmWidth; |9.`qv
bih.biXPelsPerMeter=0; 0p\R@{
bih.biYPelsPerMeter=0; fXCx!3m
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); Zo
static int filecount=0;
_=@9XvNM
CString name; $$8xdv#
name.Format("pict%04d.bmp",filecount++); 4SSq5Ve<
name=m_Path+name; (r,tU(
BITMAPFILEHEADER bfh; d4<Ic#
bfh.bfReserved1=bfh.bfReserved2=0; uV?[eiezD0
bfh.bfType=((WORD)('M'<< 8)|'B'); R06q~ >
bfh.bfSize=54+size; Kt3/C'zu
bfh.bfOffBits=54; *L>gZ`Q
CFile bf; NMb`d0;(
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ Cc^`M9dP
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); b$)b/=2
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); E`%Ewt$Z
bf.WriteHuge(lpData,size); ^50#R<Ny
bf.Close(); XmN3[j
nCount++; J/Ki]T9
} 6-C9[[g<
GlobalFreePtr(lpData); ;(M`Wy]2
if(nCount==1) Z|+SC \Y
m_Number.Format("%d picture captured.",nCount); [P`t8
else 3l"7 $B
m_Number.Format("%d pictures captured.",nCount); u1d{|fF
UpdateData(FALSE); |Q2H^dU'rQ
} &z;F'>"
h7mJXS)t|
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) aW$(lf2;
{ /pzEL
if(pMsg -> message == WM_KEYDOWN) Gr6XqO_
{ E ?(+v
if(pMsg -> wParam == VK_ESCAPE) KA1Z{7UK%
return TRUE; =\H.C@r
if(pMsg -> wParam == VK_RETURN) :FOMRrf7.
return TRUE; H@%Y!z@\
} ]5b%r;_
return CDialog::PreTranslateMessage(pMsg); %IG cn48J
} lgp-/O"T
ZVu&q{s,
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) .nX+!EXeS
{ PEZ~og:w
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ lAuI?/E
SaveBmp(); RGy4p)z*+
return FALSE; }|>mR];
} l?E7'OEF:
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ Vh1{8'GQ
CMenu pop; Dn;6O
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); 8;>vgD
CMenu*pMenu=pop.GetSubMenu(0); Fa78yY+6
pMenu->SetDefaultItem(ID_EXITICON); Mrpn^C2)
CPoint pt; !7XAc,y
GetCursorPos(&pt); Z!o&};_j
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); @WVpDhG
if(id==ID_EXITICON) ImQ?<g8$
DeleteIcon(); `Cy-*$$
else if(id==ID_EXIT) Enr8"+.(
OnCancel(); )HWf`;VQ
return FALSE; @mM'V5_#
} ek6PMZF:'
LRESULT res= CDialog::WindowProc(message, wParam, lParam); 7kapa59
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) <wV?B9j
AddIcon(); ]F
kLtq
return res; Ym
IVtQ
} XUeBK/aQ{
`[x`#irD
void CCaptureDlg::AddIcon() iDej{95
{ xKIzEN
&
NOTIFYICONDATA data; b#cXn4<