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:
\lR~!6:
q{7s.m
> 一、实现方法
&,&+/Sr11 @R2|=ox 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:
\hM6 ykY- >uOc#+5M. #pragma data_seg("shareddata")
v&XG4 & HHOOK hHook =NULL; //钩子句柄
w.l#Z} k UINT nHookCount =0; //挂接的程序数目
G)4 3Y! static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
CaBTqo static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
&9s6p6eb static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
DO03vN static int KeyCount =0;
m;
ABHq# static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
?o.G@- #pragma data_seg()
5Ij_$a Op%^dwVG(v 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
u khI#:[ 1C$^S]v%a 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:
D}"GrY5 >; W)tc, BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
Y,(eu*Za cKey,UCHAR cMask)
DR0W)K
^ {
<O>Q;}>gfc BOOL bAdded=FALSE;
Zo0&<QWj for(int index=0;index<MAX_KEY;index++){
,XA;S5FE if(hCallWnd[index]==0){
Pm?6]] 7 hCallWnd[index]=hWnd;
)%tf,3 HotKey[index]=cKey;
s*l_O*$' HotKeyMask[index]=cMask;
|ntJ+ bAdded=TRUE;
Pucf0 # KeyCount++;
*q0N$}k break;
_~cmR< }
OC>" + }
Jx>P%>+<j return bAdded;
<m(nZ'Zqz2 }
r\3In-(AT //删除热键
F}01ikXDb' BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
lHGv:TN {
Xj-3C[8@ BOOL bRemoved=FALSE;
\:=Phbn for(int index=0;index<MAX_KEY;index++){
Sej$x)Q\t if(hCallWnd[index]==hWnd){
;OKQP~^iH2 if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
,Xh4(Gn#b hCallWnd[index]=NULL;
.M!
(|KE4 HotKey[index]=0;
i5n'f6C HotKeyMask[index]=0;
QHM39Eu] bRemoved=TRUE;
./g0T{& KeyCount--;
kv5Qxj} break;
S$H4xkKs }
&1[5b8H;+ }
Xl aNR+ }
]52_p[hZ}< return bRemoved;
B\=&v8 }
cKfYkJ)A' m|7g{vHVV NFSPw`f DLL中的钩子函数如下:
AjlG_F V+Tj[:ok LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
A!f0AEA, {
'Aqmf+Mm BOOL bProcessed=FALSE;
~*[}O)7# if(HC_ACTION==nCode)
NPc%}V&C(u {
pj )I4C) if((lParam&0xc0000000)==0xc0000000){// 有键松开
I0ie3ESdN switch(wParam)
cu"%>>,, {
m:41zoV case VK_MENU:
/d=$,q1 MaskBits&=~ALTBIT;
3|?fGT;P break;
*m"mt case VK_CONTROL:
4YCGh MaskBits&=~CTRLBIT;
?eO|s5r break;
8r|LFuI case VK_SHIFT:
<^~F~]wnH MaskBits&=~SHIFTBIT;
5Ci}w|c/> break;
@E)XT\;3 default: //judge the key and send message
^$L/Mv+ break;
zR
.MXr }
7RLh#D| for(int index=0;index<MAX_KEY;index++){
]S[r$<r$ if(hCallWnd[index]==NULL)
ZV U9 t continue;
kU
Flp if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
ec0vg.>p {
UEe qk"t^ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
uJO*aA{K bProcessed=TRUE;
/Yh([P> }
Ya. $x~ }
us cR/d
}
E.6\(^g else if((lParam&0xc000ffff)==1){ //有键按下
~9c9@!RA2 switch(wParam)
aj,ZM,Ad {
C[pDPx,#:G case VK_MENU:
MQ+ek4 MaskBits|=ALTBIT;
3edAI&a5 break;
Iu[EUi!" case VK_CONTROL:
f
LW>-O73 MaskBits|=CTRLBIT;
Vg+SXq6G break;
{k*_'0 case VK_SHIFT:
qa~[fORO[ MaskBits|=SHIFTBIT;
CL*%06QyE break;
'!I?C/49k default: //judge the key and send message
+ ND9### break;
eXd(R>Mx }
9VByFQgM for(int index=0;index<MAX_KEY;index++){
:1=?/8h if(hCallWnd[index]==NULL)
c5;ROnTm continue;
$>UzXhf}\ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Jc)1} {
p\WUk@4 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
{2x5
V#6 bProcessed=TRUE;
qcot
T\rq }
a#IJ<^[8 }
kC0!`$<2f) }
(+_J0i t if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
vy#(|[pL{ for(int index=0;index<MAX_KEY;index++){
f+6l0@K2 if(hCallWnd[index]==NULL)
GCKl[<9* continue;
US|vYd}u+ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
0o]K6b SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
>+#[O" //lParam的意义可看MSDN中WM_KEYDOWN部分
wj^I1;lO }
"Pc,+>vh }
=I(s7=Liu }
hvyN8We return CallNextHookEx( hHook, nCode, wParam, lParam );
{P-PH$ E- }
a)1,/:7' ^sKXn:) 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:
MUrY >FYgx nf4P2<L! BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
IMZKlU3 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
'dzp@-\ 07|NPS 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:
B<LavX>F ~30Wb9eL LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
WFd2_oAT {
iV5I if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
h 3&:"*A2 {
)rj mJ //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
?N
ga SaveBmp();
aK{\8L3] return FALSE;
qM0MSwvC= }
+joE …… //其它处理及默认处理
1Tq$ E[ }
&EPEpN
R v~\ 45eEA dx}/#jMa 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。
IJ8DN@w9 X$9QW3.M 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。
~@8d[Tb Yg[IEy 二、编程步骤
F47n_JV!d pL@zZK0 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";
_kHpM :;. %SGO"*_ 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
M9#QS`G d_uy;-3 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;
aA`q!s.%A s%oAsQ_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;
j6vZ{Fx;w $:[BB,$ 5、 添加代码,编译运行程序。
0*?XQV@ >!1 f` 三、程序代码
s8[9YfuW e<4z) ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
?+5{HFx #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
I_G>W3 #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
!&O/7ywe #if _MSC_VER > 1000
A#X.c= #pragma once
V(u2{4gZ #endif // _MSC_VER > 1000
C|\^uR0 #ifndef __AFXWIN_H__
d~jtWd|? #error include 'stdafx.h' before including this file for PCH
2\{uqv #endif
Db=>7@h3C #include "resource.h" // main symbols
e:LZ s0 class CHookApp : public CWinApp
$ud>Z;X=P {
1gm/{w6O public:
~8t}*oV CHookApp();
l;*lPRoW, // Overrides
GB?#1|, // ClassWizard generated virtual function overrides
\GvY`kt3 //{{AFX_VIRTUAL(CHookApp)
rA,Y_1b * public:
d7J[.^\ virtual BOOL InitInstance();
q7&yb.<KD. virtual int ExitInstance();
V6MT> T //}}AFX_VIRTUAL
93IOG{OAY //{{AFX_MSG(CHookApp)
3:joSQa // NOTE - the ClassWizard will add and remove member functions here.
M/a/H=J // DO NOT EDIT what you see in these blocks of generated code !
C;q}3c*L //}}AFX_MSG
u)`|q_y+8 DECLARE_MESSAGE_MAP()
:{:?D\%6 };
Y-q@~vZ] LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
Gv,92ny!| BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
;b?+:L BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
1qj%a%R BOOL InitHotkey();
V-;nj,.mY BOOL UnInit();
3B".Gsm)X #endif
(4ci=*3= CY3 \:D0I //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
8[1DO1*P #include "stdafx.h"
mK40 f #include "hook.h"
^la i!uZVa #include <windowsx.h>
LnTe_Q7_ #ifdef _DEBUG
@MZ6E$I #define new DEBUG_NEW
x;FO|fH #undef THIS_FILE
62)lf2$1 static char THIS_FILE[] = __FILE__;
QP5:M!O<) #endif
xrVZxK:! #define MAX_KEY 100
h2|vB+W- #define CTRLBIT 0x04
9U9c"'g #define ALTBIT 0x02
V,XP&,no\j #define SHIFTBIT 0x01
;Nf hKu%K #pragma data_seg("shareddata")
7lDaok HHOOK hHook =NULL;
aI{@]hCo UINT nHookCount =0;
~|Ih
JzDt static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
wGzXp5
dl static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
e0N=2i?I#z static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
#4_O;]{' static int KeyCount =0;
m0A@jWgd static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
B#GZmv1 #pragma data_seg()
-{8Q= N HINSTANCE hins;
im\YL< void VerifyWindow();
a&s"#j BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
xeYySM= //{{AFX_MSG_MAP(CHookApp)
2gL[\/s // NOTE - the ClassWizard will add and remove mapping macros here.
/ik)4]> // DO NOT EDIT what you see in these blocks of generated code!
FJjF*2 . //}}AFX_MSG_MAP
I6hhU;)C END_MESSAGE_MAP()
;;y@z[ > 0^!,[oh6* CHookApp::CHookApp()
^mgI%_?1 {
R!/,E // TODO: add construction code here,
@0UwI%. // Place all significant initialization in InitInstance
8?j&{G }
Eo {1y
Z;Ir>^< CHookApp theApp;
}U?gKlLg LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
p21=$?k!; {
@%G' U&R{ BOOL bProcessed=FALSE;
D2TXOPH if(HC_ACTION==nCode)
SJ@8[n.x {
7:VEM;[d if((lParam&0xc0000000)==0xc0000000){// Key up
Xw*%3' switch(wParam)
il IV}8 {
!QQ<Ai!E case VK_MENU:
k\Z;Cmh> MaskBits&=~ALTBIT;
1FD7~S| break;
^C:{z)"h case VK_CONTROL:
XgiI6-B~ MaskBits&=~CTRLBIT;
^;)SFmjg% break;
]*g ss'N case VK_SHIFT:
A|
gs Uh MaskBits&=~SHIFTBIT;
Nn,vdu{^2 break;
K{=r.W default: //judge the key and send message
[I++>4 break;
'#McY'.D T }
KM_)7?` for(int index=0;index<MAX_KEY;index++){
[]=FZ`4 if(hCallWnd[index]==NULL)
C NzSBm continue;
cy& if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
yRq8;@YGY {
u]1-h6 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
AF*ni~ bProcessed=TRUE;
*C3uMiz }
oz\{9Lwc }
uFrJ:l+ }
A{i][1N else if((lParam&0xc000ffff)==1){ //Key down
x;ERRK switch(wParam)
$vg moJ@X0 {
5S|}:~7T case VK_MENU:
f
gK2.;> MaskBits|=ALTBIT;
kH>vD =q> break;
K)9j
je case VK_CONTROL:
H#kAm!H MaskBits|=CTRLBIT;
+Dq|l} break;
VGTeuu5i case VK_SHIFT:
HC9vc,Fp MaskBits|=SHIFTBIT;
M]6w^\4j9 break;
c]%;^) default: //judge the key and send message
@o4z3Q@ break;
o7c%\v[ }
@H3 s2| for(int index=0;index<MAX_KEY;index++)
}{#;;5KrB {
ONr?.MJ6j if(hCallWnd[index]==NULL)
:>tF_6 continue;
S|{Yvyp if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
{UX"Epd);n {
5bF9IH SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
] 689 Q%D bProcessed=TRUE;
H7z>S G0 }
AQnJxIL: }
z&C{8aQ' }
-(/2_&" if(!bProcessed){
a2cx for(int index=0;index<MAX_KEY;index++){
c]s(u+i if(hCallWnd[index]==NULL)
c ,h.`~{ continue;
O:`GL1{ve? if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
RQj`9F SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
=1{H
Sf }
7X9+Qj; }
$I)Tk`= }
V!pq,!C$v return CallNextHookEx( hHook, nCode, wParam, lParam );
sW]yuu!/ }
v F.?] u Vr&el BOOL InitHotkey()
I<D&,LFH*w {
vpeq:h if(hHook!=NULL){
aJK-O"0/ nHookCount++;
S 0R8'Y return TRUE;
[Vrc:%Jk }
g^s+C Z else
wq:b j=j hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
7.7Cluh5, if(hHook!=NULL)
['51FulDR nHookCount++;
$?]@_= return (hHook!=NULL);
L<f-Ed9| }
tl{]gz BOOL UnInit()
ql!5m\ {
_%A/ ) if(nHookCount>1){
'\ph`Run nHookCount--;
l1-4n*fU return TRUE;
-vv
}
$:%*gY4~76 BOOL unhooked = UnhookWindowsHookEx(hHook);
5z9r S< if(unhooked==TRUE){
T!m42EvIvE nHookCount=0;
$\0cJCQ3 hHook=NULL;
~I8v5 H }
+?URVp return unhooked;
,X9hl J }
;eS;AHZ k1^V?O BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
S`pF7[%rp {
!6XvvTs/< BOOL bAdded=FALSE;
L"""\5Bn( for(int index=0;index<MAX_KEY;index++){
$Qn&jI38 if(hCallWnd[index]==0){
>QYh}Z-/% hCallWnd[index]=hWnd;
r\A@&5#q HotKey[index]=cKey;
kbfuvJ> HotKeyMask[index]=cMask;
q
Axf5 bAdded=TRUE;
L]c 8d KeyCount++;
q6;OS.f break;
KcIc'G 9 }
+
$k07mb\ }
O]e6i%? return bAdded;
)HJK '@ }
7^kH8qJ) RtW4n:c BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
>[Xm|A# {
2.StG(Y! BOOL bRemoved=FALSE;
WafdE for(int index=0;index<MAX_KEY;index++){
Q;XXgX#l if(hCallWnd[index]==hWnd){
3mpP|b" if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
{M` hCallWnd[index]=NULL;
L\QQjI{ HotKey[index]=0;
3M}AxE u HotKeyMask[index]=0;
Z7`5x bRemoved=TRUE;
8pXfT%] KeyCount--;
mBw2 break;
1zdYBb6;j }
\1=T
sU&^ }
rER~P\- }
f2uZK!:m return bRemoved;
UqD5
A~w }
B"~U<6s0 PLO\L W void VerifyWindow()
"F&Tnhh4 {
b cC\ for(int i=0;i<MAX_KEY;i++){
l9]o\JFXk if(hCallWnd
!=NULL){
*Zc9yZl2
if(!IsWindow(hCallWnd)){ Rb{+Ki
hCallWnd=NULL; *
zd.
HotKey=0; r`?&m3IOP
HotKeyMask=0; b0y-H/d/}
KeyCount--; G!AICcP^
}
=Ov9Kf
} %0NL Rfp
} ;])I>BT[
} dz8-):
Bfbl#ZkyL
BOOL CHookApp::InitInstance() x*:n4FZ7b
{ ^/G?QR
AFX_MANAGE_STATE(AfxGetStaticModuleState()); ^%-NPo<
hins=AfxGetInstanceHandle(); 7^c2e*S
InitHotkey(); kJ/+IGV^v
return CWinApp::InitInstance(); A$/KP\0Y2
} 1UC2zM"
6(:)otz
int CHookApp::ExitInstance()
*hV4[=
{ 72`/d`
VerifyWindow(); ymHKcQ
UnInit(); bAUHUPe
return CWinApp::ExitInstance(); oz Vpfs
} ZQ@3P7T
7TP$
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file #g,H("Qy({
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) AzZi{Q ?
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ bSQ_"
#if _MSC_VER > 1000 X )I/%{
#pragma once 3QH(4N
#endif // _MSC_VER > 1000 _\p`4-.V
n1_ %Td
class CCaptureDlg : public CDialog @v"T~6M
{ H1Q''$}Z.
// Construction \{kHSV%z
public: EH(tUwY%{
BOOL bTray; FSv1X
BOOL bRegistered; %cS#+aK6M'
BOOL RegisterHotkey(); aWdUuid
UCHAR cKey; nZe\5`
UCHAR cMask; QI.t&sCh5
void DeleteIcon(); I`lDWL
void AddIcon(); [S%J*sz~
UINT nCount; HP#ki !'
void SaveBmp(); M\I_{Q?_
CCaptureDlg(CWnd* pParent = NULL); // standard constructor fH&zR#T7U4
// Dialog Data 'wa g |-
//{{AFX_DATA(CCaptureDlg) *<w3" iq
enum { IDD = IDD_CAPTURE_DIALOG }; o.v2z~V
CComboBox m_Key; /({P1ti:C
BOOL m_bControl; 0xv\D0
BOOL m_bAlt; \Ph]*%
BOOL m_bShift; I I&<
CString m_Path; 5qGGu.$Ihi
CString m_Number; ehU"*9
//}}AFX_DATA anLbl#UV
// ClassWizard generated virtual function overrides Q<dba12
//{{AFX_VIRTUAL(CCaptureDlg) *JwFD^<j
public: *}7U`Aa
virtual BOOL PreTranslateMessage(MSG* pMsg); nz>K{(
protected: ) 9xX
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support r;9z5'
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); f;R>Pr;rD
//}}AFX_VIRTUAL fD0{ 5
// Implementation .6LS+[
protected: Sq<3Rw
HICON m_hIcon; :r\xkHg/f
// Generated message map functions So?m?,!W
//{{AFX_MSG(CCaptureDlg) ej<`CQ
virtual BOOL OnInitDialog(); :|=- (z
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); h5j<u
afx_msg void OnPaint(); TWtC-wI;
afx_msg HCURSOR OnQueryDragIcon(); 3=IG#6)~C
virtual void OnCancel(); l4zw]AYk+X
afx_msg void OnAbout(); ,eDu$8J9
afx_msg void OnBrowse(); <H!O:Mf_p
afx_msg void OnChange(); ~bWhth2*
//}}AFX_MSG |"_ )zQ
DECLARE_MESSAGE_MAP() )t5;d
}; >n(F4C-pl
#endif TFYw
KLW&bJ$|j
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file S3QaYq"v
#include "stdafx.h" 1}`2\3,
#include "Capture.h" rJX\6{V!_
#include "CaptureDlg.h" 'bl%Y).9w
#include <windowsx.h> lz-
iCZ
#pragma comment(lib,"hook.lib") s88y{o
#ifdef _DEBUG GZ
<nXU>
#define new DEBUG_NEW W|0My0y
#undef THIS_FILE )]3L/
static char THIS_FILE[] = __FILE__; .3( ;9};
#endif _Cj(fFL
#define IDM_SHELL WM_USER+1 ]uAS+shQ&
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); '\
XsTs#L
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); CPVmF$A-
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; #sS9vv7i
class CAboutDlg : public CDialog G#|Hu;C6"
{ ]?M)NRk%S
public: .5]{M\aA
CAboutDlg(); 4'` C1 a
// Dialog Data ?/)lnj)e{
//{{AFX_DATA(CAboutDlg) 3h LqAj
enum { IDD = IDD_ABOUTBOX }; UUGe"]V^g:
//}}AFX_DATA YlrB@mE0n$
// ClassWizard generated virtual function overrides ]r!QmWw~V
//{{AFX_VIRTUAL(CAboutDlg) /-><k,mL?
protected: q P'[&h5Y
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support Rh[Ib m56
//}}AFX_VIRTUAL vn ``0!FX
// Implementation z$66\/V']
protected: =D}4X1l
//{{AFX_MSG(CAboutDlg) ~x\Cmu9`
//}}AFX_MSG Z~_8P
DECLARE_MESSAGE_MAP() svqvG7
}; Vli3>K&
-(
(Z@T1k
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) lYP~3wp99
{ s+'XQs^{aj
//{{AFX_DATA_INIT(CAboutDlg) !:d L~n
//}}AFX_DATA_INIT b#A(*a_gN
} $M39 #a
:,47rN,qa
void CAboutDlg::DoDataExchange(CDataExchange* pDX) Hk~k@Wft
{ aTG[=)xL
CDialog::DoDataExchange(pDX); Vcr VaBw
//{{AFX_DATA_MAP(CAboutDlg) ?|lI Xz
//}}AFX_DATA_MAP EQ/^&
} %6Rn4J^^
`/0u{[
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) VjY<\WqbS
//{{AFX_MSG_MAP(CAboutDlg) `On3/gU|
// No message handlers P,U$ %C!
//}}AFX_MSG_MAP d-h"JZ9
END_MESSAGE_MAP() t{6ap +%L
CIEJql?`
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) X% X$Y6
: CDialog(CCaptureDlg::IDD, pParent) ifvU"l
{ GZ"&L?ti
//{{AFX_DATA_INIT(CCaptureDlg) 1#q^uqO0
m_bControl = FALSE; zA,/@/'(
m_bAlt = FALSE; S*xhX1yUi
m_bShift = FALSE; X>{p}vtvf>
m_Path = _T("c:\\"); R5gado
m_Number = _T("0 picture captured."); xG8`'SNY
nCount=0; 0U%Xm[:
bRegistered=FALSE; |/*pT1(&
bTray=FALSE; 4~Dax)
//}}AFX_DATA_INIT
UUH;L
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 fx]eDA|$e
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); F3Ap1-%z
} OT;cfkf7
-zTEL(r
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) M!#AfIyB
{ E23w *']
CDialog::DoDataExchange(pDX); NHAH#7]M&1
//{{AFX_DATA_MAP(CCaptureDlg) {\L|s5=yr
DDX_Control(pDX, IDC_KEY, m_Key); @C=M
UT-!
DDX_Check(pDX, IDC_CONTROL, m_bControl); #52NsVaT@
DDX_Check(pDX, IDC_ALT, m_bAlt); v&r=-}z2!
DDX_Check(pDX, IDC_SHIFT, m_bShift); u1N1n;#
DDX_Text(pDX, IDC_PATH, m_Path); ^aHh{BQ%
DDX_Text(pDX, IDC_NUMBER, m_Number); M%|f+u &
//}}AFX_DATA_MAP =LK}9ViH
} [Y$V\h=V
^SAq^3^P!
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) UGCox-W"
//{{AFX_MSG_MAP(CCaptureDlg) 6rT4iC3Q{
ON_WM_SYSCOMMAND() _Z.cMYN
ON_WM_PAINT() {-h, ZdH^
ON_WM_QUERYDRAGICON() fnWsm4
ON_BN_CLICKED(ID_ABOUT, OnAbout) LN\[Tmd &
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) ;y OD
ON_BN_CLICKED(ID_CHANGE, OnChange) MJ\r 4n
//}}AFX_MSG_MAP +sRP<as
END_MESSAGE_MAP() :~D];m
x9~[HuJ
BOOL CCaptureDlg::OnInitDialog() Hd374U<8]T
{ BGzO!s*@j
CDialog::OnInitDialog(); hlC%HA
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); ]-a{IWVN
ASSERT(IDM_ABOUTBOX < 0xF000); FT(iX`YQ
CMenu* pSysMenu = GetSystemMenu(FALSE); ZV(
w
if (pSysMenu != NULL) EHhd;,;O
{ sUbFRq
CString strAboutMenu; }[v~&
strAboutMenu.LoadString(IDS_ABOUTBOX); 2( _=SfQ
if (!strAboutMenu.IsEmpty()) -njQc:4W,-
{ ;ctU&`
pSysMenu->AppendMenu(MF_SEPARATOR); ;cLUnsB\
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); 6__K#r
} 3S;N(A4
} cix36MR_
SetIcon(m_hIcon, TRUE); // Set big icon f?maa5S
SetIcon(m_hIcon, FALSE); // Set small icon ^j=bObaX
m_Key.SetCurSel(0); ${>DhfF
RegisterHotkey(); Sr"/-
CMenu* pMenu=GetSystemMenu(FALSE); fI]b zv;
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); c3#q0Ma
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); Vo >Xp
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); >A=\8`T^
return TRUE; // return TRUE unless you set the focus to a control (bvoF5%
} nB&j
R04J3D|
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) SK-W%t
{ @[v8}D
if ((nID & 0xFFF0) == IDM_ABOUTBOX) @RVOXkVo
{ Q6x%
CAboutDlg dlgAbout; [O1|75
dlgAbout.DoModal(); {(Fe7,.S3
} t!~S9c
else + Kk@Q
{ u|OtKq
CDialog::OnSysCommand(nID, lParam); {g_@Tuu
} .`J:xL%Z
} GO~k '
gl
"_:atW
void CCaptureDlg::OnPaint() y
1nU{Sc@
{ #KE;=$(S
if (IsIconic()) y<*-tZV[
{ %Rarr
CPaintDC dc(this); // device context for painting l"5y?jT
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); u5F}( +4r
// Center icon in client rectangle (3W&AM
int cxIcon = GetSystemMetrics(SM_CXICON); j|(:I: ]
int cyIcon = GetSystemMetrics(SM_CYICON); v|&s4x?D
CRect rect; =<.F3lo\s
GetClientRect(&rect); D:m#d.m
int x = (rect.Width() - cxIcon + 1) / 2; 'HB~Dbq`V
int y = (rect.Height() - cyIcon + 1) / 2; +*.1}r&
// Draw the icon 0Cq!\nzz
dc.DrawIcon(x, y, m_hIcon); d1bhJK
} w+=Q6]FxJ
else mf2Mx=oy
{ U|?,N0%Z1
CDialog::OnPaint(); kFwxK"n@C
} 9|3o<
} oIxH 3T
x8/us
HCURSOR CCaptureDlg::OnQueryDragIcon() h[Mdr
{ =fWdk\Wv
return (HCURSOR) m_hIcon; \O? u*
} > UWStzH<
ZAeQ~ j~
void CCaptureDlg::OnCancel() (}"S)#C
{ n1 v,#GE
if(bTray) !
Rvn'|!
DeleteIcon(); X" \}sl5
CDialog::OnCancel(); s OQcx\dK
} M=[th
I.a0[E/,
void CCaptureDlg::OnAbout() RJPcn)@l
{ H+`*Y<F@
CAboutDlg dlg; *B{-uc3o
dlg.DoModal(); G"> 0]LQ
} `xIh\q
OZT^\Ky_l
void CCaptureDlg::OnBrowse() S&01SX6
{ `Cg ^in\
CString str; !tBeuemN%
BROWSEINFO bi; rS,j;8D-
char name[MAX_PATH]; ~p.%.b;~t
ZeroMemory(&bi,sizeof(BROWSEINFO)); \JU{xQMB
bi.hwndOwner=GetSafeHwnd(); )&z4_l8`=
bi.pszDisplayName=name; Mz\yPT;Y
bi.lpszTitle="Select folder"; (3O1?n[n
bi.ulFlags=BIF_RETURNONLYFSDIRS; =ybGb7?
LPITEMIDLIST idl=SHBrowseForFolder(&bi); zX~}]?|9
if(idl==NULL) )S Q('vwg
return; H%C\Uz"o
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); yQwVQUW8B
str.ReleaseBuffer(); V{GXc:=
m_Path=str; rhoeZ
if(str.GetAt(str.GetLength()-1)!='\\') x.\XUJ4x
m_Path+="\\"; +5-fk>o
UpdateData(FALSE); ZpWu,1
} S.hC$0vrj
<I1y
void CCaptureDlg::SaveBmp() 045\i[l=
{ p%8v`
CDC dc; !sG"n&uZq
dc.CreateDC("DISPLAY",NULL,NULL,NULL); v:A:37#I
CBitmap bm; |[ocyUsxX
int Width=GetSystemMetrics(SM_CXSCREEN); `j:M)2:*y
int Height=GetSystemMetrics(SM_CYSCREEN); W>:kq_gT
bm.CreateCompatibleBitmap(&dc,Width,Height); A$<>JVv
CDC tdc; pyF5S,c
tdc.CreateCompatibleDC(&dc); XN(tcdCG
CBitmap*pOld=tdc.SelectObject(&bm); >2Ca5C
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); s|gp
tdc.SelectObject(pOld); |z+9km7,
BITMAP btm; A6i
et~h[
bm.GetBitmap(&btm); [Auc*@
DWORD size=btm.bmWidthBytes*btm.bmHeight; m>YWxa
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); %A2`&:ip
BITMAPINFOHEADER bih; x<
S\D&
bih.biBitCount=btm.bmBitsPixel; DB~MYOX~
bih.biClrImportant=0; y;:]F|%<
bih.biClrUsed=0; ((cb4IX
bih.biCompression=0; 6Hn)pD#U
bih.biHeight=btm.bmHeight; lC2?sD$
bih.biPlanes=1; P}l#VJWp
bih.biSize=sizeof(BITMAPINFOHEADER); _uJVuCc
bih.biSizeImage=size; >HIt}Zh
bih.biWidth=btm.bmWidth; ZOn_dYjC
bih.biXPelsPerMeter=0; J|q^+K
bih.biYPelsPerMeter=0; BkV(81"C
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); xKb"p4k9d
static int filecount=0; H|K("AVP:
CString name; [ze/@29
name.Format("pict%04d.bmp",filecount++); w%rg\E
name=m_Path+name; j8c6[ih
BITMAPFILEHEADER bfh; \gd6Yx^[
bfh.bfReserved1=bfh.bfReserved2=0; 3&9zGy{V+
bfh.bfType=((WORD)('M'<< 8)|'B'); RpAiU
bfh.bfSize=54+size; C
Oa.xyp
bfh.bfOffBits=54; */Cj$KY70
CFile bf; 7t3X`db
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ ^r4|{
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); iN`6xkY
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); 0 {,h.:
bf.WriteHuge(lpData,size); V&R$8tpz
bf.Close(); GmAj<