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:
?/l}(t$H
H:{(CY?t 一、实现方法
i:Z.;z$1 qLW-3W;WUH 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:
E~Up\f ^qzT5W\@ #pragma data_seg("shareddata")
AZ]SRz9mKY HHOOK hHook =NULL; //钩子句柄
Kt* za UINT nHookCount =0; //挂接的程序数目
o%~K4 M". static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
n xh/&% static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
RH'F<!p static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
3d)+44G_) static int KeyCount =0;
://|f static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
|C2.Zay #pragma data_seg()
tv=FFfQ = cI\OsV&? 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。
1d@^,7MF- 8s5ru) 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:
Bzy=@]` bQN4ozSi BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
'm!11Phe cKey,UCHAR cMask)
2|NyAtPb5 {
j&G~;(DY BOOL bAdded=FALSE;
9B;Sk]y for(int index=0;index<MAX_KEY;index++){
D>x'3WYR if(hCallWnd[index]==0){
.HyiPx3^ hCallWnd[index]=hWnd;
.
;@)5" HotKey[index]=cKey;
"vRqtEBO@ HotKeyMask[index]=cMask;
5~R{,]52 bAdded=TRUE;
0_zSQn9c KeyCount++;
3^-)gK break;
w*ktx{ }
Cg\)BHv~ }
oD}FJvV return bAdded;
,G/X"t ~ }
vAhO!5]>\ //删除热键
<@j BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
>]|^Ux,WZ {
+4p;4/= BOOL bRemoved=FALSE;
*U^I`j[u for(int index=0;index<MAX_KEY;index++){
! tPK"k if(hCallWnd[index]==hWnd){
~t3?er& R if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
!skWe~/ hCallWnd[index]=NULL;
R]sjG< HotKey[index]=0;
0m!ZJH e HotKeyMask[index]=0;
u]-El}*[ bRemoved=TRUE;
qhf/B) KeyCount--;
J& SuUh< break;
k+G4<qw }
XBt0Ez }
<4HuV.K }
G8-d%O p return bRemoved;
p;Ok.cXVp }
M 6Z`Pwv]; acZ|H J;Xz'0 DLL中的钩子函数如下:
:*%\i' $!/ e/D\7Pf LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
,ZW.P` {
a#GqJ?nY BOOL bProcessed=FALSE;
(xJBN?NRO if(HC_ACTION==nCode)
"MP{z~Mmj {
\`9|~!,Ix7 if((lParam&0xc0000000)==0xc0000000){// 有键松开
{ 3P!b|V> switch(wParam)
9JeGjkG, {
*<5lx[:4/x case VK_MENU:
iZ;jn8 MaskBits&=~ALTBIT;
#{`NJ2DU] break;
{"(|oIo{ case VK_CONTROL:
kZEy MaskBits&=~CTRLBIT;
cJ{P,K break;
xx#Ef@bS case VK_SHIFT:
9.}3RAB(cv MaskBits&=~SHIFTBIT;
<sG> [\i break;
=n?@My?; default: //judge the key and send message
H t$%)j9 break;
S?WUSx*N }
SygsZv&LZ for(int index=0;index<MAX_KEY;index++){
mM~Q!`Nf. if(hCallWnd[index]==NULL)
n!orM5=:O continue;
k)_#u;qmG if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
LYKm2C*d {
2uB26SEIl SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
Ps,w(k{d bProcessed=TRUE;
t?&ajh }
u-cC}DP }
tXGcwoOB }
> _) a7% else if((lParam&0xc000ffff)==1){ //有键按下
1fG@r%4 switch(wParam)
uB! P>v6 {
R
dzIb- case VK_MENU:
V:np cKpu MaskBits|=ALTBIT;
iKO~#9OF break;
imuHSxcaV case VK_CONTROL:
~.SU$ MaskBits|=CTRLBIT;
nW[aPQ[R break;
+eat,3Ji case VK_SHIFT:
%tjEVQa MaskBits|=SHIFTBIT;
2)H|/ break;
|0Kt@AJY default: //judge the key and send message
+o5rR|)M+ break;
O$ \N]# }
L(YT6Vmm+t for(int index=0;index<MAX_KEY;index++){
VJPP HJ[- if(hCallWnd[index]==NULL)
UcIR0BYa continue;
ku=q:ryO if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
DvKMb-*S {
Cu5
- w SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
7k3\_BHyb\ bProcessed=TRUE;
A]slssE+ }
N* QI>kzU }
#`EMK }
!b
Km}1T if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
<Z wEdq for(int index=0;index<MAX_KEY;index++){
yw^,@' if(hCallWnd[index]==NULL)
v7RDoO]I continue;
TR;-xst@ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
<]J5AdJ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
![Y$[l //lParam的意义可看MSDN中WM_KEYDOWN部分
ijT^gsLL }
?/ g(Y }
Z r*ytbt }
6
>2!
kM7 return CallNextHookEx( hHook, nCode, wParam, lParam );
D=+sD"<| }
7X"cu6%\ dDTt _B 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:
`8*$$JC ^^mi@&ApLD BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
_TiF}b!hi BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
ZH*?~ # &'j77tqOk 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:
;* Jd#O Ro69woU LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
-R]S)Odml {
"^%Il if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
p^3d1H3 {
5^i ^? //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
_;+&'=6.[ SaveBmp();
:I8t}Wg return FALSE;
UJ+JVj }
p<NgT1"{ …… //其它处理及默认处理
q9>w3
< }
uW|y8 BP $ gfHlY Q] #-O4x`W> 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。
k3w#^
"i 1F-L(\oKm 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。
a7R7Ks|q n1V*VQV 二、编程步骤
$MR4jnTT :JmNy< 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";
Yy5F'RY ewR0e.g 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
bL<cgtz7)
[DviN 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;
*HUqW}_r B:SRHd{*Wu 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;
*&km5@* iQQJ` 5、 添加代码,编译运行程序。
q^)(p'
X Spb'jAKj' 三、程序代码
?M);wBe( -b<+Ra ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
1{qg@xlj #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
%1<|.Dmd #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
p;HZA}p \ #if _MSC_VER > 1000
{1mD(+pJ{ #pragma once
+VDB\n #endif // _MSC_VER > 1000
">7 bnOJ #ifndef __AFXWIN_H__
lH8?IkK,g #error include 'stdafx.h' before including this file for PCH
=6hf'lP #endif
W0Vjs|/ #include "resource.h" // main symbols
n/-I7Q!;u class CHookApp : public CWinApp
f
sMF46 {
x1Uj4*Au public:
&^"m6 CHookApp();
ftbu:RtK^^ // Overrides
)DW;Gc // ClassWizard generated virtual function overrides
d*(1t\ //{{AFX_VIRTUAL(CHookApp)
_XN sDW4| public:
YI/vt2 virtual BOOL InitInstance();
zcc]5> virtual int ExitInstance();
$t^`Pt*:u //}}AFX_VIRTUAL
'-et:Lv7 //{{AFX_MSG(CHookApp)
]#;JPO#* // NOTE - the ClassWizard will add and remove member functions here.
6K6ihR!d // DO NOT EDIT what you see in these blocks of generated code !
V*)gJg //}}AFX_MSG
6Yu8ReuL DECLARE_MESSAGE_MAP()
#gP\q?5Ov };
K(hf)1q LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
U -(d~]$ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
=619+[fK BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
8V@3T/} BOOL InitHotkey();
fa)G$Q BOOL UnInit();
Xg"=,j2 #endif
dCBJV JyV"jL
//////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
1]"b.[P> #include "stdafx.h"
3s+D
x$Ud #include "hook.h"
Z+4J4Ka^!( #include <windowsx.h>
1*s Lj# #ifdef _DEBUG
@d)6LA9Ec #define new DEBUG_NEW
D0~mu{;c$ #undef THIS_FILE
I2b[ static char THIS_FILE[] = __FILE__;
&WIPz\ #endif
D n^RZLRhy #define MAX_KEY 100
DLVf7/=3~ #define CTRLBIT 0x04
MQAb8 K:e #define ALTBIT 0x02
Ood&cP'c #define SHIFTBIT 0x01
^#Shs^#
#pragma data_seg("shareddata")
tkA '_dcIC HHOOK hHook =NULL;
cP-6O42 UINT nHookCount =0;
a"}?{ static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
w%htY.- static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
r'j*f"uAm static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
/D
eU`rj static int KeyCount =0;
$?7}4u, static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
\
FA7 +Q #pragma data_seg()
*v6'I-# HINSTANCE hins;
[b`k\~N4r void VerifyWindow();
yZKj>P1 BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
3a =KgOvp //{{AFX_MSG_MAP(CHookApp)
^z_~e@U // NOTE - the ClassWizard will add and remove mapping macros here.
FQ_4a}UOjX // DO NOT EDIT what you see in these blocks of generated code!
?>e-6*. //}}AFX_MSG_MAP
lUDzfJ}3 END_MESSAGE_MAP()
h_J'dJS ,oR}0(^"\< CHookApp::CHookApp()
,>)/ y {
EBJaFz' // TODO: add construction code here,
r>5,U:6Q/ // Place all significant initialization in InitInstance
*9G;n!t }
SJL?(S* C{4[ 7 CHookApp theApp;
WVKzh LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
Pr" 2d\ {
B?k75G BOOL bProcessed=FALSE;
{'JoVJKv if(HC_ACTION==nCode)
0q81H./3 {
A^G%8 )\ if((lParam&0xc0000000)==0xc0000000){// Key up
V^"5cW switch(wParam)
/Ue~W,| {
MSu_*&j9T case VK_MENU:
R{/nlS5 MaskBits&=~ALTBIT;
vU::dr break;
J 5~bs*a8 case VK_CONTROL:
">|fB&~A MaskBits&=~CTRLBIT;
hH>t break;
VCtj8hKDr case VK_SHIFT:
v. !L:1@I. MaskBits&=~SHIFTBIT;
]wZG4A break;
x)s`j(pYC default: //judge the key and send message
&W*9'vSm. break;
074)(X&:x }
=*fOej>G for(int index=0;index<MAX_KEY;index++){
V|Smk;G if(hCallWnd[index]==NULL)
oJEind>8O continue;
JS}iNS'X if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
"??$yMW {
46sV\In>? SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
rF'q\tJDz bProcessed=TRUE;
S U04q+ }
n1X 7T0' }
2+50ezsId }
w\!aKeP'
else if((lParam&0xc000ffff)==1){ //Key down
cE'MSB switch(wParam)
NLRgL'+F {
v="i0lL_ case VK_MENU:
N"Q-xK MaskBits|=ALTBIT;
|4UW.dGHPo break;
#A+ dj|
b case VK_CONTROL:
XX+%:,G MaskBits|=CTRLBIT;
KFx4"f% break;
"{Lp'+wNw case VK_SHIFT:
X)P9f N~7 MaskBits|=SHIFTBIT;
qf#Ou break;
Qt`}$] default: //judge the key and send message
P`0}( '"U break;
ly9.2<oz}L }
>La!O~d for(int index=0;index<MAX_KEY;index++)
1?\G6T {
)cxLpTr if(hCallWnd[index]==NULL)
K_;'-B continue;
Jsde+G,N if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
-pvF~P?8U {
llN#4D9s SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
[f 4Nq \i bProcessed=TRUE;
7S|nn|\Kp }
7b7@"Zw* }
8Th{(J_ }
,t2M ur if(!bProcessed){
7,X5]U&A<x for(int index=0;index<MAX_KEY;index++){
s|FfBG if(hCallWnd[index]==NULL)
Wb4+U;C^!' continue;
.'aW~WR if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
XnR9/t SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
u 6A!Sw }
j\@Ht~G }
xY v@ }
YBF|0A{[Y return CallNextHookEx( hHook, nCode, wParam, lParam );
xvU@,bzz }
A0JlQE&U ;hzm&My BOOL InitHotkey()
M<$a OW0 {
hhRUC&Y%V if(hHook!=NULL){
W~b->F nHookCount++;
f-$%Ck$%, return TRUE;
gqw
]L>Z }
3HCH-?U5 else
<u`m4w hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
;tg9$P<85 if(hHook!=NULL)
?o$ hlX nHookCount++;
J%r$jpd' return (hHook!=NULL);
(@X].oM^y }
TuR.'kE@ BOOL UnInit()
`,~8(rIM {
JlaT
-j if(nHookCount>1){
H.-VfROi2 nHookCount--;
J7a_a>Y return TRUE;
rW),xfo0 }
LlbRr.wL BOOL unhooked = UnhookWindowsHookEx(hHook);
4}&$s if(unhooked==TRUE){
f i#p('8 nHookCount=0;
@~g][O#Fu hHook=NULL;
3;v%78[&P }
'z\$.L return unhooked;
AXN%b2 }
m6+4}= Cn @?bO@ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
s&.VU|=VQ@ {
NW?.Ge.!P BOOL bAdded=FALSE;
-0P(lkylf for(int index=0;index<MAX_KEY;index++){
<+3-(& if(hCallWnd[index]==0){
ny++U;qi hCallWnd[index]=hWnd;
$OGTHJA HotKey[index]=cKey;
MbbKo-7F$ HotKeyMask[index]=cMask;
`
b$u w bAdded=TRUE;
h_*!cuH KeyCount++;
}LYK:?_/ break;
_|1m]2'9 }
Wy:xiP }
MVDEVq0 return bAdded;
0vYHx V }
MeCHn2zwB 3+~m 9:9 BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
U]Pl` =SL {
`%@|sK2 BOOL bRemoved=FALSE;
2,T^L(] for(int index=0;index<MAX_KEY;index++){
@3g$H[} if(hCallWnd[index]==hWnd){
+ 0DPhc if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
/u&{=nU hCallWnd[index]=NULL;
tMbracm HotKey[index]=0;
K."%PdC HotKeyMask[index]=0;
Q95`GuI@ bRemoved=TRUE;
`PH]_]:% KeyCount--;
sW#OA\i& break;
( :h#H[F }
mto=_|gn }
T>P[0`*) }
rP%B#%;S" return bRemoved;
sR;^7(f!m }
3OZu v};k /k_?S? void VerifyWindow()
/l6r4aO2= {
J
n~t>? for(int i=0;i<MAX_KEY;i++){
zLt7jxx if(hCallWnd
!=NULL){ SN<Dxa8Iy
if(!IsWindow(hCallWnd)){ |K(jXZ)
hCallWnd=NULL; fg?4/]*T6
HotKey=0; <13').F
HotKeyMask=0; CT2L }5L&
KeyCount--; a Byetc88/
} 9fhgCu]$
} Ul{{g$
} Fi3k
} P&kjtl68Y
\A%s" O/
BOOL CHookApp::InitInstance() )}3!iDA
{ W`k||U9
AFX_MANAGE_STATE(AfxGetStaticModuleState()); 9$Dsm@tX
hins=AfxGetInstanceHandle(); Z23*`yR
InitHotkey(); (U?*Z/
return CWinApp::InitInstance(); Bk44 wz2X
} (^lw<$N
j84g6; 4Dv
int CHookApp::ExitInstance() ps@;Z?Q
{ 1&2X*$]y
VerifyWindow(); ;)7 GdR^K
UnInit(); ~tM+!
return CWinApp::ExitInstance(); UB8TrYra
} hW Va4
t^')ST
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file !Zi_4 .(4
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) Z]^Ooy[pb
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ <$+Cd=71\
#if _MSC_VER > 1000 ,GVD.whUl
#pragma once _(zPA4q8q
#endif // _MSC_VER > 1000 I&Dp~aEM]
-F338J+J24
class CCaptureDlg : public CDialog 5J vrQGvL
{ bf*VY&S-T
// Construction @gM>Lxj
public: S`t@L}
BOOL bTray; z4B-fS]
BOOL bRegistered; /9wmc2
BOOL RegisterHotkey(); 0Z,a3)jcc
UCHAR cKey; 7Z7e}|
\W
UCHAR cMask; o?]N2e&(
void DeleteIcon(); wR@"]WkR=
void AddIcon(); :=cZ,?PQp1
UINT nCount; c7~>uNgJ
void SaveBmp(); 4Rv.m*^ B
CCaptureDlg(CWnd* pParent = NULL); // standard constructor 9\J6G8b>|I
// Dialog Data 9L+g;Js$4
//{{AFX_DATA(CCaptureDlg) sgxD5xj}4
enum { IDD = IDD_CAPTURE_DIALOG }; zQ>|`0&8
CComboBox m_Key; a`t<R
BOOL m_bControl; *wu:fb2[(
BOOL m_bAlt; !ma%Zk
BOOL m_bShift; 8~@?cy1j!
CString m_Path; 'Z{_ws
CString m_Number; }#D+}Mo!,
//}}AFX_DATA QKVFH:"3
// ClassWizard generated virtual function overrides ]hHL[hoFC
//{{AFX_VIRTUAL(CCaptureDlg) XI/LVP,.
public: kaG@T,pH(
virtual BOOL PreTranslateMessage(MSG* pMsg); &CcUr#|
protected: s%OPoRE
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support D.;iz>_}Y
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); RASPOc/]
//}}AFX_VIRTUAL \.l8]LH
// Implementation ?BA~$|lfxu
protected: @)<
3Z
HICON m_hIcon; qW"
// Generated message map functions JIH6!
//{{AFX_MSG(CCaptureDlg) O*dtVX
virtual BOOL OnInitDialog(); @SX-=Nr
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); Mv%"aFC
afx_msg void OnPaint(); E/5/5'gBJO
afx_msg HCURSOR OnQueryDragIcon(); VxTrL}{(6
virtual void OnCancel(); ,)beK*Iw
afx_msg void OnAbout(); 8?z7!k]
afx_msg void OnBrowse(); Eb.k:8?Tn
afx_msg void OnChange(); D\CjR6DE
//}}AFX_MSG u+_6V
DECLARE_MESSAGE_MAP() +B#+'
}; *^=zQ~
#endif \YMe&[C:o
_GF{Duxh
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file i[V\RKH*F
#include "stdafx.h" hwj:$mR
#include "Capture.h" ^0T DaZDLp
#include "CaptureDlg.h" tsf)+`vt
#include <windowsx.h> j.:I{!R#
#pragma comment(lib,"hook.lib") -qNun3
#ifdef _DEBUG fnZ?YzLI
#define new DEBUG_NEW 2Q81#i'Cm
#undef THIS_FILE F!*tE&Se+
static char THIS_FILE[] = __FILE__; tmVGJ+gz
#endif v3I-i|L<)
#define IDM_SHELL WM_USER+1 P g.j]
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); Bh0hUE
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); FzM<0FJRX
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; <Y"h2#M "
class CAboutDlg : public CDialog mR3-+dB/
{ C;jV)hr6P
public: S(
Vssi|y
CAboutDlg(); ^=.QQo||B
// Dialog Data 8%Eemk >G{
//{{AFX_DATA(CAboutDlg) Ax{C ^u
enum { IDD = IDD_ABOUTBOX }; 7%)KB4(\_
//}}AFX_DATA BH3%dh:9
// ClassWizard generated virtual function overrides ;'i>^zX`
//{{AFX_VIRTUAL(CAboutDlg) <yg!D21Y
protected: B$D7}=|kc
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 8lZB3p]X
//}}AFX_VIRTUAL UY~N4IR8
// Implementation t4[<N
protected: NDYm7X*et
//{{AFX_MSG(CAboutDlg) \\iX9-aI<
//}}AFX_MSG @0[#XA_>
DECLARE_MESSAGE_MAP() 8H@] v@Z2
}; LE]mguvs
Sece#K2J|
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) HY>zgf,0
{ ?Jy/]j5fI
//{{AFX_DATA_INIT(CAboutDlg) 5e|yW0o
//}}AFX_DATA_INIT ,.,spoV
} 2uT"LW/(H
8D:0Vhx\I
void CAboutDlg::DoDataExchange(CDataExchange* pDX) Y:#nk.}>
{ kT1 2
CDialog::DoDataExchange(pDX); Dhze2q)o
//{{AFX_DATA_MAP(CAboutDlg) Ra)AQ
n
//}}AFX_DATA_MAP _/[}PQC6G
} ,qu7XFYrY
z;Yo76P
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) L{F[>^1Sb
//{{AFX_MSG_MAP(CAboutDlg) 155vY
// No message handlers F!qt=)V@w
//}}AFX_MSG_MAP o8c5~fG1
END_MESSAGE_MAP() /{%p%Q[X
A(}D76o_
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) .9VhDrCK
: CDialog(CCaptureDlg::IDD, pParent) k^Qd%;bdF
{ Z3qr2/
//{{AFX_DATA_INIT(CCaptureDlg)
AQm#a;
m_bControl = FALSE; *&O4b3R
m_bAlt = FALSE; {YMO8
m_bShift = FALSE; ArVW2gL
m_Path = _T("c:\\"); uWDWf5@
m_Number = _T("0 picture captured."); 4`zK`bRcK#
nCount=0; 5iZx
-M
bRegistered=FALSE; hn[lhC
bTray=FALSE; opfg %*
//}}AFX_DATA_INIT kps}i~Jb
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 |YcYWok
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); ?X^.2+]*&
} i#KY'"P
*6/OLAkyF
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) x%`tWE|
{ WbJ
CDialog::DoDataExchange(pDX); JJ4w]Dd4
//{{AFX_DATA_MAP(CCaptureDlg) .Ge`)_e
DDX_Control(pDX, IDC_KEY, m_Key); <pIel
DDX_Check(pDX, IDC_CONTROL, m_bControl); HyYol*
DDX_Check(pDX, IDC_ALT, m_bAlt); /K :H2?J
DDX_Check(pDX, IDC_SHIFT, m_bShift); >41K>=K
DDX_Text(pDX, IDC_PATH, m_Path); ,{Ga7rH*
DDX_Text(pDX, IDC_NUMBER, m_Number); vWVQ8S.
//}}AFX_DATA_MAP +HkEbR'G0
} w[]\%`69}Z
7RCVqc"
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) 4WXr~?Vq9
//{{AFX_MSG_MAP(CCaptureDlg) Y.KJP ?
ON_WM_SYSCOMMAND() h pKrP
ON_WM_PAINT() <V1y^EW0
ON_WM_QUERYDRAGICON() yF@72tK
ON_BN_CLICKED(ID_ABOUT, OnAbout) %(A@=0r#
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) Ti>2N
ON_BN_CLICKED(ID_CHANGE, OnChange) -GODM128 ^
//}}AFX_MSG_MAP ]FEsN6
END_MESSAGE_MAP() [vn"r^P
>=K~*$&>
BOOL CCaptureDlg::OnInitDialog() (Qd@Q,@(s
{ 4Ul*`/d
CDialog::OnInitDialog(); ~tZy-1
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); t*wV<b
ASSERT(IDM_ABOUTBOX < 0xF000); n'9&q]GN|
CMenu* pSysMenu = GetSystemMenu(FALSE); M,sZ8eeq
if (pSysMenu != NULL) `N;O6
wZ
{ CF]#0*MI
CString strAboutMenu; PwC^
]e
strAboutMenu.LoadString(IDS_ABOUTBOX); Jix;!("
if (!strAboutMenu.IsEmpty()) ODCv^4}9
{ lS |:4U.
pSysMenu->AppendMenu(MF_SEPARATOR); @m+FAdA 0
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); 0,1)Sg*
} NszqI
} TXbnK"XQ
SetIcon(m_hIcon, TRUE); // Set big icon g`I$U%a_2
SetIcon(m_hIcon, FALSE); // Set small icon {)wl`mw3
m_Key.SetCurSel(0); ?o`fX
wE
RegisterHotkey(); >2ny/AK|
CMenu* pMenu=GetSystemMenu(FALSE); O2S{*D={
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); (".WJXB\
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); 8V@\$4@b!#
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); C]M{
return TRUE; // return TRUE unless you set the focus to a control [[uZCKi
}
,+!|~1
TGzs|-
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) -?1ed|I8
{ rqEP!S^
if ((nID & 0xFFF0) == IDM_ABOUTBOX) "O<TNSbrC
{ !m?W+z~J
CAboutDlg dlgAbout; cv9-ZOxJ
dlgAbout.DoModal(); Xp~O?2:3l
} +^3
*Y"6Z
else )NnkoCNeE
{ DEt;$>tl
5
CDialog::OnSysCommand(nID, lParam); O5dBI_
} (d# W3
} qbKcI+)47
9M7Wlx2
void CCaptureDlg::OnPaint() ESi-'R&
{ mhMRY9 ahB
if (IsIconic()) 4IXa[xAm
{ NT<}-^
CPaintDC dc(this); // device context for painting i+~H~k}"X
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); @T)>akEOt
// Center icon in client rectangle YzYj/,?r
int cxIcon = GetSystemMetrics(SM_CXICON); /Y8{?
int cyIcon = GetSystemMetrics(SM_CYICON); }0 =gP?.kE
CRect rect; [-2Tj)P
C
GetClientRect(&rect); vjd;*ORB
int x = (rect.Width() - cxIcon + 1) / 2; <zp|i#~
int y = (rect.Height() - cyIcon + 1) / 2; r-ljT<f%J[
// Draw the icon SOeRQb'
dc.DrawIcon(x, y, m_hIcon); 4_w{~
} 28O 3N;a
else D`NQEt"(
{ %$=}ePD
CDialog::OnPaint(); a3^ ({;k!0
} 2fG[q3`
} g&O!w!T
c{!XDiT]P
HCURSOR CCaptureDlg::OnQueryDragIcon() 2qPQ3-'
{ p/Ri|FD6
return (HCURSOR) m_hIcon; ,e+S7YX
} ^A$p)`KR
J4jL%5t
void CCaptureDlg::OnCancel() s`o_ER
{ =:Lc-y >
if(bTray) 6Lz:J:Q)
DeleteIcon(); B^BbA-I
CDialog::OnCancel(); AUPTtc`#Y
} Bu#\W
E7j9A`
void CCaptureDlg::OnAbout() !\|L(Paf
{ ;\gHFG}
CAboutDlg dlg; y-vQ4G5F|
dlg.DoModal(); S/Gy:GIf
} q[TW
9FmX^t$T
void CCaptureDlg::OnBrowse() qrY]tb^K
{ ux1SQ8C *
CString str; OB\jq!"
BROWSEINFO bi; JV;-P=o1B
char name[MAX_PATH]; HKYJgx
ZeroMemory(&bi,sizeof(BROWSEINFO)); ,dSP%?vV
bi.hwndOwner=GetSafeHwnd(); U\UlQp?
bi.pszDisplayName=name; |oTA$bln
bi.lpszTitle="Select folder"; 5db9C}0
bi.ulFlags=BIF_RETURNONLYFSDIRS; S3&lkN5
LPITEMIDLIST idl=SHBrowseForFolder(&bi); Tw!_=zy(Gw
if(idl==NULL) )X5en=[)O
return; (kZ2D
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); R%)7z)~
str.ReleaseBuffer(); R2dCp|6A
m_Path=str; u;=a=>05IR
if(str.GetAt(str.GetLength()-1)!='\\') _A=Pr_kN
m_Path+="\\"; !KmSLr7xU
UpdateData(FALSE); g:fzf>oQ>p
} kUQdi%3yY;
NZt
8L?
void CCaptureDlg::SaveBmp() 0uS6F8x@
{ @ \JoICz
CDC dc; gBJM|"_A?
dc.CreateDC("DISPLAY",NULL,NULL,NULL); 6"_ytqw7
CBitmap bm; rPF2IS(5
int Width=GetSystemMetrics(SM_CXSCREEN); XV:icY
int Height=GetSystemMetrics(SM_CYSCREEN); U-lN-/=l6
bm.CreateCompatibleBitmap(&dc,Width,Height); h|XLL|:
CDC tdc; 9vJ'9Z2\
tdc.CreateCompatibleDC(&dc); .?;"iv+
CBitmap*pOld=tdc.SelectObject(&bm); U$AV"F&!&}
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); "78BApjWT6
tdc.SelectObject(pOld); |f<-lB[k
BITMAP btm; HbQ+:B]
bm.GetBitmap(&btm); #~:@H&f790
DWORD size=btm.bmWidthBytes*btm.bmHeight; o :_'R5
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size);
d/&~IR
BITMAPINFOHEADER bih; t^(wbC
bih.biBitCount=btm.bmBitsPixel; ^.(i!BG'
bih.biClrImportant=0; ^y3snuLtE
bih.biClrUsed=0; +<\.z*
bih.biCompression=0; W,p?}KiO
T
bih.biHeight=btm.bmHeight; VVm8bl.q
bih.biPlanes=1; pXq5|,aC
bih.biSize=sizeof(BITMAPINFOHEADER); ,|Lf6k
bih.biSizeImage=size; yZqX[U
bih.biWidth=btm.bmWidth; |-.r9;-b
bih.biXPelsPerMeter=0; E:S (v
bih.biYPelsPerMeter=0; a29rD$
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); VXIB9
/*i
static int filecount=0; I9E]zoj8
CString name; SZm&2~|J
name.Format("pict%04d.bmp",filecount++); 8@d,TjJDo
name=m_Path+name; /Q2{w>^DK
BITMAPFILEHEADER bfh; H<bB@(i
bfh.bfReserved1=bfh.bfReserved2=0; tU, >EbwO
bfh.bfType=((WORD)('M'<< 8)|'B'); 9{XC9\~
bfh.bfSize=54+size; pTIE.:g(
bfh.bfOffBits=54; +N>&b%
CFile bf; @/0-`Y@?
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ Q:sw*7"F
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); Jevr.&