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:
H>x(c|ZBp
H WOl79- 一、实现方法
Jzg>Y?jN R \M
H\! 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:
SxHj3,`#C [/s^(2% #pragma data_seg("shareddata")
vgc#IEx@ HHOOK hHook =NULL; //钩子句柄
B>hC8^.S|w UINT nHookCount =0; //挂接的程序数目
F
;o ^. static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
z"b}V01F# static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
oA^aT:o + static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
SIBNU3;DL static int KeyCount =0;
bOt6q/f static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
1<y|, #pragma data_seg()
eVobs2s 1e 8J-Nkj 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。
I.f)rMl+h
\,-t]$9 DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
e;y\v/A yEnurq%J BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
5Iv3B|u cKey,UCHAR cMask)
2{v$GFc/ {
TTS.wBpR, BOOL bAdded=FALSE;
%>dCAj" for(int index=0;index<MAX_KEY;index++){
u7_IO if(hCallWnd[index]==0){
U;Iqz1S hCallWnd[index]=hWnd;
^^u{W|'CaH HotKey[index]=cKey;
hPs7mnSW HotKeyMask[index]=cMask;
eY)JuJ? bAdded=TRUE;
03WLVP@ KeyCount++;
ewNzRH,b break;
nN=o/z d }
K0|8h!WF+ }
Ue>;h9^ return bAdded;
~nQv
yM!$ }
R6^U9fDG //删除热键
dE<}X7J% BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
r[
UZHX5+S {
.Ulrv5wJ BOOL bRemoved=FALSE;
1@&i
ju5 for(int index=0;index<MAX_KEY;index++){
?onaJ=mT if(hCallWnd[index]==hWnd){
8X6F6RK6,1 if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
CCCd=s. hCallWnd[index]=NULL;
W6_~.m"b HotKey[index]=0;
0Q81$% @< HotKeyMask[index]=0;
XYJ7k7zc+Y bRemoved=TRUE;
7oj
^(R, KeyCount--;
Z/#&c break;
qq%\ }
\`H"4r[?( }
)20jZm* }
_Eus<c return bRemoved;
PSOW}Y|q }
SLzxF uV 8JOfx 'y(;:Kc DLL中的钩子函数如下:
ea"!:cL(g o"^+ i#H! LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
b51{sL {
V Ae@P BOOL bProcessed=FALSE;
q
.[hwm if(HC_ACTION==nCode)
%^e~;i=2 {
[0M2`x4` if((lParam&0xc0000000)==0xc0000000){// 有键松开
4fK(<2i switch(wParam)
MIblx {
^6tcB* #A case VK_MENU:
l98.Hb7 MaskBits&=~ALTBIT;
huMNt6P[ break;
fOE8{O^W case VK_CONTROL:
X2X.&^ MaskBits&=~CTRLBIT;
5H (CP break;
dKs^Dq case VK_SHIFT:
C$9+p@G6 MaskBits&=~SHIFTBIT;
,QDS_u$xi& break;
Q_ zGs6 default: //judge the key and send message
*h+@a break;
/%E l0X }
gk"0r\Eq for(int index=0;index<MAX_KEY;index++){
L*;XjacI] if(hCallWnd[index]==NULL)
4 1w*<{Lk continue;
r:[N#*kK if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
7+I%0U}m {
t<_Jx<{2 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
:lF[k`S T bProcessed=TRUE;
/i$-ws- }
wzLR]<6G }
v35wlt^} }
-&4W0JK9 else if((lParam&0xc000ffff)==1){ //有键按下
yv.Y-c= switch(wParam)
m!{}Y]FZn {
I)wjTTM5 case VK_MENU:
5|&:l8= MaskBits|=ALTBIT;
s0,\[rM break;
*?;<buJb? case VK_CONTROL:
OYcf+p"<\ MaskBits|=CTRLBIT;
x"hZOgFZ break;
+-b:XeHSZ case VK_SHIFT:
?y.q<F) MaskBits|=SHIFTBIT;
h8IjTd]z{$ break;
"qL4D4 default: //judge the key and send message
Hwr#
NKz- break;
K\Oz
~,z }
(C<~:Y?% for(int index=0;index<MAX_KEY;index++){
aE[>^~Lv} if(hCallWnd[index]==NULL)
z93HTy9 continue;
b`x7%?Qn if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
P3w]PG@ {
2C9wOO SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
tBDaFB bProcessed=TRUE;
w]Q0}Z }
czMu<@c [ }
bFivHms }
8.Q;o+NU if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
R5`"~qP- for(int index=0;index<MAX_KEY;index++){
"qEi$a&] if(hCallWnd[index]==NULL)
zdDn.
vG continue;
aq~g54 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
)` nX~_'p SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
]= 2wQ8 //lParam的意义可看MSDN中WM_KEYDOWN部分
)@-v6;7b0 }
]B;GU }
Ka[@-XH }
(TufvHC return CallNextHookEx( hHook, nCode, wParam, lParam );
\Y)pm9! }
oY!nM%z/ 44H#8kV 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
13oR-Stj| nC^|83 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
V^O
dTM BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
owClnp9K _dCsYI% 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
n@pm5f `v*UY LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
.&:GOD {
GA19=gow if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
[ vU$zZ< {
OiB*,TWV //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
%9z N U SaveBmp();
|meo return FALSE;
&3x
\wH/_ }
cY+vnQm …… //其它处理及默认处理
y %dUry%> }
Fs^d-I kV@*5yc?R cswX?MN
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。
FhJ8}at+e l26DPtWi 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。
jM%qv "j+zd&*={ 二、编程步骤
K`!q1g` !^Mk5E ( 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";
I!(.tu6u6c #q{i<E 07 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
zz ^2/l GO@pwq< 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;
x`'2oz=,F4 SB#YV
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;
)|>LSKTEl {I s?>m4 5、 添加代码,编译运行程序。
RX",Zt$q /1X0h 三、程序代码
WNkAI9B te?R(& ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
_vA\j #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
vF, !8e'v #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
@:$zReS2 #if _MSC_VER > 1000
}8E//$J #pragma once
iqecm]Z0 #endif // _MSC_VER > 1000
{e,m<mAi #ifndef __AFXWIN_H__
5TlPs_o #error include 'stdafx.h' before including this file for PCH
jd;=5(2 #endif
g`KVF"8 #include "resource.h" // main symbols
Qh%(yL! class CHookApp : public CWinApp
jKV,i? {
J~z;sTR public:
.+XGbs]kCi CHookApp();
G!~[+B // Overrides
CFJ F}aW // ClassWizard generated virtual function overrides
zuOx@T^ //{{AFX_VIRTUAL(CHookApp)
\M>+6m@w public:
t?^C9(;6 virtual BOOL InitInstance();
A:3bL:
;t virtual int ExitInstance();
|xaJv:96% //}}AFX_VIRTUAL
xw-x<7 //{{AFX_MSG(CHookApp)
[T', ZLR| // NOTE - the ClassWizard will add and remove member functions here.
L{$ZL & // DO NOT EDIT what you see in these blocks of generated code !
620y[iiK$ //}}AFX_MSG
}S6Sz&) DECLARE_MESSAGE_MAP()
~:ddTv?F };
N7j LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
Oqzz9+ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
DB'pRo+U BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
m3]|I(]`Xe BOOL InitHotkey();
po_||NIY BOOL UnInit();
4%O*2JAw #endif
lp5`Kw\ Fz7(Kuc //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
'pOtd7Vr #include "stdafx.h"
"H>L!v #include "hook.h"
;J pdnV #include <windowsx.h>
UD[S>{
#ifdef _DEBUG
mg)lr&-b #define new DEBUG_NEW
1E!0N`E #undef THIS_FILE
-}k'a{sj= static char THIS_FILE[] = __FILE__;
Ee>P*7*jB #endif
h+|3\>/@9{ #define MAX_KEY 100
ZjLzS]\a #define CTRLBIT 0x04
sqHvrI #define ALTBIT 0x02
=tl[?6 #define SHIFTBIT 0x01
s}A)sBsaP3 #pragma data_seg("shareddata")
W#|]m=2W HHOOK hHook =NULL;
?}sh@;]*h UINT nHookCount =0;
yG58?5\9 static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
#5O'XH5_ static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
V%&t'H{ static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
-CW&!oW static int KeyCount =0;
^z3-$98=A static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
Ltpd:c #pragma data_seg()
C,C%1
HINSTANCE hins;
qOz,iR?} void VerifyWindow();
F?'=iY<h BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
zmy94Y5PE //{{AFX_MSG_MAP(CHookApp)
M*| y&XBe // NOTE - the ClassWizard will add and remove mapping macros here.
J=67As // DO NOT EDIT what you see in these blocks of generated code!
/B"h#v-o //}}AFX_MSG_MAP
[@[!esC END_MESSAGE_MAP()
f&t]O$ _GK^ 7}u CHookApp::CHookApp()
DHGv<
F@ {
{
'Hi_b3 // TODO: add construction code here,
Fa^5.p // Place all significant initialization in InitInstance
i](,s. }
Ojp)OeF\ DR/qe0D CHookApp theApp;
u3kK!2cdP LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
UC^&&
2maI {
[.B)W); BOOL bProcessed=FALSE;
_lb ^ if(HC_ACTION==nCode)
ME~ga,|K {
]9)pFL if((lParam&0xc0000000)==0xc0000000){// Key up
(r`+q[ switch(wParam)
H V<|eL # {
a>`\^>G4 case VK_MENU:
[8.ufpZ MaskBits&=~ALTBIT;
"|`8mNC break;
K|];fd U case VK_CONTROL:
{
yU1db^ MaskBits&=~CTRLBIT;
.Ozfj@ f break;
gs 8w/ case VK_SHIFT:
rq9{m( MaskBits&=~SHIFTBIT;
MK[l*=\s break;
:N^1T6v default: //judge the key and send message
Ken |!rL break;
FCQoz"M }
W^0F(9~!( for(int index=0;index<MAX_KEY;index++){
m_~
p G if(hCallWnd[index]==NULL)
qAm$yfYs` continue;
k(o[T),_%0 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
)gV+BHK {
\(.&E`r SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
uOc>~ITPS bProcessed=TRUE;
MQE=8\
}
,T"pUe VJ }
+]
B }
*wP8)yv7 else if((lParam&0xc000ffff)==1){ //Key down
+FQ:Q+ switch(wParam)
#})Oz| c {
$-"AMZ899 case VK_MENU:
:ORCsl6- MaskBits|=ALTBIT;
sF]v$kq break;
y?<[g;MuT case VK_CONTROL:
l9)iLOj MaskBits|=CTRLBIT;
Gk,{{:M:5 break;
MLY19 ;e case VK_SHIFT:
>1a-}>r MaskBits|=SHIFTBIT;
Vj4
if@Z break;
$/],QD_;" default: //judge the key and send message
!798%T break;
p+;Re2Uyg }
L@S"c
( for(int index=0;index<MAX_KEY;index++)
+%X_+9bd {
93x.b]]" if(hCallWnd[index]==NULL)
[{N
i94:d continue;
qLKyr@\' if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
u_@%}zo?5* {
wxsJB2 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
=nFT0]; bProcessed=TRUE;
nSsVONHfa }
s8}:8 }
M
^ZoBsZ }
Y_>z"T if(!bProcessed){
BzF.KCScs for(int index=0;index<MAX_KEY;index++){
51.F,uY if(hCallWnd[index]==NULL)
a\vf{2
continue;
CB_(9T72H if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
:tdx: SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
VbM5]UT/ }
/}2
bsiJT }
0NfO|l7P }
zJI/j
_~W return CallNextHookEx( hHook, nCode, wParam, lParam );
,.]e~O4R }
Y:^ =jV7 !W^2?pqN BOOL InitHotkey()
_4o2AS : j {
2F!K
}aw if(hHook!=NULL){
cAyR)Y!I nHookCount++;
uByF*}d1 return TRUE;
vIU+ZdBw }
r {)d?Ho= else
!/< 5.9!9r hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
5|m|R"I*Y if(hHook!=NULL)
KwPJ0
]('_ nHookCount++;
=t@m: return (hHook!=NULL);
~0ZEnejy }
D\(,:_ge BOOL UnInit()
?*}76u {
MP[v 9m@ if(nHookCount>1){
MGc=TQ. nHookCount--;
eN/sW!:P| return TRUE;
*Vfas|3hZI }
<ofXNv;` BOOL unhooked = UnhookWindowsHookEx(hHook);
kSU5
} if(unhooked==TRUE){
68FxM#xR nHookCount=0;
Vnh
+2XiK hHook=NULL;
3mWo`l }
rctn0*MP return unhooked;
lx$Y-Tb^F }
gK(E0p" XYod>[.x BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
l]WV?^* {
a47Btd'm BOOL bAdded=FALSE;
8o -?Y.2 for(int index=0;index<MAX_KEY;index++){
]~WP;o if(hCallWnd[index]==0){
]~?k%Mpw hCallWnd[index]=hWnd;
wrqdQ}@( HotKey[index]=cKey;
&@dMk4BH< HotKeyMask[index]=cMask;
,Lv}Xku bAdded=TRUE;
c::x.B"w KeyCount++;
bcM#KA break;
*Z{$0K }
1"/V?ArfL }
+ A0@#:B return bAdded;
qu[w_1%S }
4c2P%X(
C ~|DF-t
V BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
T:)>Tcv}: {
>=U$s@ BOOL bRemoved=FALSE;
|]GEJUWtCd for(int index=0;index<MAX_KEY;index++){
'0t j2 if(hCallWnd[index]==hWnd){
ATnD~iACY if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
Jk{>*jYk` hCallWnd[index]=NULL;
3BY/&'oX HotKey[index]=0;
q/;mxq$ HotKeyMask[index]=0;
#H!~:Xu bRemoved=TRUE;
J3:P/n& KeyCount--;
tH_#q"@) break;
IE_@:]K}Ja }
v/m`rc]e }
v~jN,f* }
~%<PEl| return bRemoved;
UBqK$2
# }
.z[+sy_ ]m4LY.SQ void VerifyWindow()
*r-Bt1 {
}\823U
% for(int i=0;i<MAX_KEY;i++){
an5Ss@<4AA if(hCallWnd
!=NULL){ 4aV3x&6X
if(!IsWindow(hCallWnd)){ *s%s|/
hCallWnd=NULL; LL[+QcH
HotKey=0; +ixDB0"\
HotKeyMask=0; dH`a|SVW9
KeyCount--; >,] #~d
} -g@pJ^>:
} hA@X;Mh^w
} Gi<f/xQk>
} vi5~ Rd`
5Q%#Z
L/'
BOOL CHookApp::InitInstance() ED?s[K
{ sm_:M| [D
AFX_MANAGE_STATE(AfxGetStaticModuleState()); U!e4_JBR'
hins=AfxGetInstanceHandle(); I[4E?
InitHotkey(); (vI7qD_
return CWinApp::InitInstance(); Ce0I8B2y
} I*
bjE'
61mQJHl.
int CHookApp::ExitInstance() 92SB'T>
{ ;JZXSM-3
VerifyWindow(); {xH
\!!"T
UnInit(); /ZzlC#`
return CWinApp::ExitInstance(); %kc g#p+tE
} RU{}qPs?
JQtH},Tr
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file <!+o8z]
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) ,88Y1|:X
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ {'b8;x8h
#if _MSC_VER > 1000 O Z#?
#pragma once `3+U6>U [
#endif // _MSC_VER > 1000 *,Re&N8
%]R#}amW
class CCaptureDlg : public CDialog `Ch6"=t
{ P\M+ZA ;
// Construction w(G(Q>GI
public: ALwuw^+
BOOL bTray; 9V"j=1B}
BOOL bRegistered; K&X'^|en
BOOL RegisterHotkey(); )T4L^^`
UCHAR cKey; p;5WLAF
UCHAR cMask; $bo^UYZ6
void DeleteIcon(); <N*>9S,}
void AddIcon(); =3T?U_u@
UINT nCount; 7'8O*EoB'
void SaveBmp(); x:bYd\
EJ[
CCaptureDlg(CWnd* pParent = NULL); // standard constructor B.WJ6.DkS
// Dialog Data ;?[~]"
//{{AFX_DATA(CCaptureDlg) =&p bh
enum { IDD = IDD_CAPTURE_DIALOG }; {Q-U=me\
CComboBox m_Key; %*gO<U4L]
BOOL m_bControl; [_0g^(`
BOOL m_bAlt; j~{2fd<>
BOOL m_bShift; i f"v4PHq
CString m_Path; a2 SQ:d
CString m_Number; yjr@v!o
//}}AFX_DATA m3WV<Cbz
// ClassWizard generated virtual function overrides w\mF2h
//{{AFX_VIRTUAL(CCaptureDlg) N<{`n;
public: 0l##M06>
virtual BOOL PreTranslateMessage(MSG* pMsg); aE%VH ;?
protected: H|Nw)*.
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support %b?Pasf.
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); &-*nr/xT
//}}AFX_VIRTUAL Z`*cI
// Implementation Ocb2XEF
protected: G<z)Ydh_
HICON m_hIcon; C1/jA>XW
// Generated message map functions O<3,n;56Z
//{{AFX_MSG(CCaptureDlg) n=&c5!
virtual BOOL OnInitDialog(); 5;{Bdvcv
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); y(dS1.5F
afx_msg void OnPaint(); Z~uKT n
afx_msg HCURSOR OnQueryDragIcon(); br;G5^j3?
virtual void OnCancel(); ]M2<I#hF.
afx_msg void OnAbout(); ./
:86@O
afx_msg void OnBrowse(); KRtu@;?
afx_msg void OnChange(); gctaarB&
//}}AFX_MSG Cm4*sN.&)
DECLARE_MESSAGE_MAP() A1q^E(}O
}; f+920/>!Z
#endif x.yL'J\)
2{CSH_"Z7
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file (2li:1j
#include "stdafx.h" E8i:ER $$7
#include "Capture.h" jE#8&P~
#include "CaptureDlg.h" R
u5&xIQ
#include <windowsx.h> 7j:{rCp3J
#pragma comment(lib,"hook.lib") k~#|8eLv
#ifdef _DEBUG ]KeNC)R
#define new DEBUG_NEW RV`j>1
#undef THIS_FILE =dBrmMh
static char THIS_FILE[] = __FILE__; 8:% R|b
#endif ? st#6=M
#define IDM_SHELL WM_USER+1 J7GsNFL
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); { 9 ".o,
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); %?hLo8
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; zRu`[b3u<
class CAboutDlg : public CDialog [MS.5+1Y
{ 9C;Y5E~'L
public: H Im,
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CAboutDlg(); v|@n8ED|@K
// Dialog Data n*~
//{{AFX_DATA(CAboutDlg) }yw;L(3
enum { IDD = IDD_ABOUTBOX }; *]WXM.R8
//}}AFX_DATA 3\r@f_p
// ClassWizard generated virtual function overrides >UY_:cW4%m
//{{AFX_VIRTUAL(CAboutDlg) W_\L_)^X
protected: Ts .Zl{B
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support `HG19_Z
//}}AFX_VIRTUAL k_<{j0z.
// Implementation g@i>R>
protected: ;J-Ogt @d7
//{{AFX_MSG(CAboutDlg) rs Uw(K^
//}}AFX_MSG <C%-IZv$
DECLARE_MESSAGE_MAP() Tki/d\!+
}; "jO3Y/>S
\t# 9zn>
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) G.nftp(*}
{ 4>VZk^%b#
//{{AFX_DATA_INIT(CAboutDlg) yVHlT
//}}AFX_DATA_INIT gvqd1?0w
} *}ee"eHs
xg,]M/J
void CAboutDlg::DoDataExchange(CDataExchange* pDX) t!~YO'<dS
{ ^>8]3@ Nh
CDialog::DoDataExchange(pDX); ' P`p.5nH
//{{AFX_DATA_MAP(CAboutDlg) F[D0x26^
//}}AFX_DATA_MAP iWM7,=1+
} $;uWj|
; [%}Xx
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 2~WFLD
//{{AFX_MSG_MAP(CAboutDlg) _$\5ZVe
// No message handlers ESxC{
"
//}}AFX_MSG_MAP BX(d"z b<
END_MESSAGE_MAP() * \o$-6<
N~;
khS]
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) hLbT\J`I
: CDialog(CCaptureDlg::IDD, pParent) zc/%1
{ %C`'>,t>
//{{AFX_DATA_INIT(CCaptureDlg) GGc_9?h
m_bControl = FALSE; ?e y&Un"
m_bAlt = FALSE; ;q,)NAr&
m_bShift = FALSE; S2ppKlVv
m_Path = _T("c:\\"); =HV-8C]
m_Number = _T("0 picture captured."); `)=A!x y
nCount=0; f:[d]J|
bRegistered=FALSE; Uk*;C
bTray=FALSE; m/hi~.D9
//}}AFX_DATA_INIT T]#,R|)d
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 dD^_^'i
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); R_>TEYZ
} 0^y@p&;/.
HM@}!6/s
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) \gp,Txueb
{ AO}i@YJth
CDialog::DoDataExchange(pDX); _Hd1sx
//{{AFX_DATA_MAP(CCaptureDlg) <a+eF}*2
DDX_Control(pDX, IDC_KEY, m_Key); K\KO5A
DDX_Check(pDX, IDC_CONTROL, m_bControl); I*W9VhIOV
DDX_Check(pDX, IDC_ALT, m_bAlt); d@6:|auO
DDX_Check(pDX, IDC_SHIFT, m_bShift); 9IvcKzS2
DDX_Text(pDX, IDC_PATH, m_Path); RZd4(7H=q
DDX_Text(pDX, IDC_NUMBER, m_Number); 7"n1it[RJ8
//}}AFX_DATA_MAP =WmBpUh
} n-y^7'v
? gA=39[j
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) ~w1{zxs
//{{AFX_MSG_MAP(CCaptureDlg) ,dZ#,<
ON_WM_SYSCOMMAND() fmnRUN=
ON_WM_PAINT() t ?9;cS4
ON_WM_QUERYDRAGICON() ) _9e@~,
ON_BN_CLICKED(ID_ABOUT, OnAbout) v$)@AE
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) /=muj9|+s
ON_BN_CLICKED(ID_CHANGE, OnChange) D]pK=247
//}}AFX_MSG_MAP =nvAOvP{?
END_MESSAGE_MAP() Q.9Ph
~
jTd4 H)
BOOL CCaptureDlg::OnInitDialog() I(^jOgYU
{ d4p{5F7]^
CDialog::OnInitDialog(); ^A11h6I
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); m0I #
ASSERT(IDM_ABOUTBOX < 0xF000);
1o|0x\ q
CMenu* pSysMenu = GetSystemMenu(FALSE); xH"W}-#[
if (pSysMenu != NULL) ?GUz?'d
{ B:3+',i1
CString strAboutMenu; QN5yBa!Wz
strAboutMenu.LoadString(IDS_ABOUTBOX); 23}BW_m
if (!strAboutMenu.IsEmpty()) t<!+b@l5
{ Jt-XmGULB
pSysMenu->AppendMenu(MF_SEPARATOR); (#j2P0B
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); e8d5(e
} Y!Uu173
} jiA5oX^g
SetIcon(m_hIcon, TRUE); // Set big icon C.yY8?|
SetIcon(m_hIcon, FALSE); // Set small icon L.09\1?.n
m_Key.SetCurSel(0); 1z})mfsh
RegisterHotkey(); O+G~Qp0b>
CMenu* pMenu=GetSystemMenu(FALSE); )(h&Q?
Ar
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); ' "ZRD_"
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); s{(ehP.Dd
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); F=oHl@
return TRUE; // return TRUE unless you set the focus to a control O`wYMng)
} ";wyNpb(
=cf{f]N
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) GXOFk7>
{ l `fW{lh
if ((nID & 0xFFF0) == IDM_ABOUTBOX) 5TXg;v#Z
{ -Wl)Lez@
CAboutDlg dlgAbout; r?64!VS;
dlgAbout.DoModal(); R&6n?g6@/V
} M*d-z
else #V<`U:.
{ HA$Y1}
CDialog::OnSysCommand(nID, lParam);
n=f`AmF;
} x Z|&/Ci
} 0-*Z<cu%l
Q/9a,85
void CCaptureDlg::OnPaint() 98BYtxa
{ n`P`yb\f$
if (IsIconic()) pU
M&"V
{ tY{;
U#9
CPaintDC dc(this); // device context for painting OZG0AX+=#
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); aQ&uC )w
// Center icon in client rectangle D~Z=0yD
int cxIcon = GetSystemMetrics(SM_CXICON); m'd^?Qc
int cyIcon = GetSystemMetrics(SM_CYICON); $v FrU v
CRect rect; ppEJs
GetClientRect(&rect); P?uf?{
int x = (rect.Width() - cxIcon + 1) / 2; K6E}";;
int y = (rect.Height() - cyIcon + 1) / 2; 1XG$ z@NN
// Draw the icon e[s5N:IUd3
dc.DrawIcon(x, y, m_hIcon); M
/"gf;)q>
} _HwpPRVP/
else KL
"Y!PN:
{ QO@6VY@
CDialog::OnPaint(); F@9Y\. ,
} PJCnud F
} 7k `_#
pL~=Z?(B
HCURSOR CCaptureDlg::OnQueryDragIcon() J=):+F=
{ 9X3yp:>V
return (HCURSOR) m_hIcon; PQ,+hq
} qh$X^%g
WJAYM2
6\
void CCaptureDlg::OnCancel() w$b~x4y%
{ lDC}HC
if(bTray) L%f;J/
DeleteIcon(); 9<v}LeX
CDialog::OnCancel(); Z9xR
} PT+c&5A S
>{QdMn
void CCaptureDlg::OnAbout() *E}Oh
{ lj*8mS/;h
CAboutDlg dlg; W<Z$YWr
dlg.DoModal(); N#UXP5C(
} b_vVB`>
P% Q@9kO>
void CCaptureDlg::OnBrowse() "c,!vc4
{ OTE<x"=h
CString str; ) \4
|
BROWSEINFO bi; 2A>C+Y[7\
char name[MAX_PATH]; VJg,~lQN#t
ZeroMemory(&bi,sizeof(BROWSEINFO)); 0V3gKd7
bi.hwndOwner=GetSafeHwnd(); lBmm(<~Z
bi.pszDisplayName=name; ESIzGaM
bi.lpszTitle="Select folder"; tOM(U-7Z&
bi.ulFlags=BIF_RETURNONLYFSDIRS; JpmB;aL#%
LPITEMIDLIST idl=SHBrowseForFolder(&bi); U*qNix
if(idl==NULL) f^?uY8<
return; }/p/pVz
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); `L\)ahM
str.ReleaseBuffer(); ~.6|dw\p!
m_Path=str; FsY(02
if(str.GetAt(str.GetLength()-1)!='\\') bDWeU}
m_Path+="\\"; /$:U$JVb?l
UpdateData(FALSE); k2p'G')H
} {zP#woz2Q
k"
YHsn
void CCaptureDlg::SaveBmp() ?PH/?QP
{ g~!$i`_b
CDC dc; jV^C19
dc.CreateDC("DISPLAY",NULL,NULL,NULL); 8;#AO8+U7)
CBitmap bm; "OL~ul5
int Width=GetSystemMetrics(SM_CXSCREEN); IqUp4}
int Height=GetSystemMetrics(SM_CYSCREEN); K%gP5>y*9>
bm.CreateCompatibleBitmap(&dc,Width,Height); Q0~j$Jc
CDC tdc; c@(1:,R
tdc.CreateCompatibleDC(&dc); /K|:9Q$K6
CBitmap*pOld=tdc.SelectObject(&bm); EgNH8i
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); p7C!G1+z
tdc.SelectObject(pOld); q8sbn
BITMAP btm; S0LszW)e
bm.GetBitmap(&btm); `*yAiv>
DWORD size=btm.bmWidthBytes*btm.bmHeight; `f)(Y1%.
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); #s2B%X
BITMAPINFOHEADER bih; R#qI(V
bih.biBitCount=btm.bmBitsPixel; i8~$o:&HT
bih.biClrImportant=0; %{C)1*M7
bih.biClrUsed=0; q4ipumy*
bih.biCompression=0; {Q~7M$
bih.biHeight=btm.bmHeight; 7>n"}8i
bih.biPlanes=1; <m-.aK{9
bih.biSize=sizeof(BITMAPINFOHEADER); S&?7K-F>_o
bih.biSizeImage=size; </s,pe79B
bih.biWidth=btm.bmWidth; U<Jt50O
bih.biXPelsPerMeter=0; Sj-[%D*
bih.biYPelsPerMeter=0; fbC~WV#
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); 64U6C *w+
static int filecount=0; kNPDm6m
CString name; #3MKH8k&~
name.Format("pict%04d.bmp",filecount++); 'Kz9ygZy
name=m_Path+name; (C S8(C4[
BITMAPFILEHEADER bfh; o8z)nOTO;
bfh.bfReserved1=bfh.bfReserved2=0; q`Q}yE>9
bfh.bfType=((WORD)('M'<< 8)|'B'); Y~qb;N\
bfh.bfSize=54+size; 6RK\}@^=K
bfh.bfOffBits=54; k^An97J
CFile bf; saW!9HQj
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ $}tjS3klr
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); P`"mM?u
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); #C*&R>IvY
bf.WriteHuge(lpData,size); s@!$='|
bf.Close(); YG[w@u
nCount++; MzTW8
} ;>ozEh#8w
GlobalFreePtr(lpData); s".HEP~]=
if(nCount==1) ,W*H6fw+
m_Number.Format("%d picture captured.",nCount); 8&E}n(XE
else NK/4OAt%
m_Number.Format("%d pictures captured.",nCount); S_Z`so}
UpdateData(FALSE); C;qMw-*F
} $<w)j!
!LIlt`ag9
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) 7SS07$B
{ MYdx .NZT
if(pMsg -> message == WM_KEYDOWN) Q"VMNvKYB
{ D7Zm2Kj
if(pMsg -> wParam == VK_ESCAPE) Z8&'f,
return TRUE; QxpKX_@Q5
if(pMsg -> wParam == VK_RETURN) *<