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:
r_E)HL/A
"'B%.a#k 一、实现方法
8k^y.B j]"xck 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:
S\;.nAR %:?QE
; #pragma data_seg("shareddata")
)6
<byO HHOOK hHook =NULL; //钩子句柄
!gHWYWu)! UINT nHookCount =0; //挂接的程序数目
a3O_#l-Z static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
X",0VO static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
](:FW '- static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
Q5n :f+ static int KeyCount =0;
Pm(:M:a static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
jY+S,lD #pragma data_seg()
'2$!thm hyfnIb@~} 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
E2H<{Q
bK8F | DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
UH-uU~ X6GkJ
R BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
A=d$ir
K[ cKey,UCHAR cMask)
kseJm+Hc {
S} Cp&}G{P BOOL bAdded=FALSE;
H&Y{jqua for(int index=0;index<MAX_KEY;index++){
2RUR=%C if(hCallWnd[index]==0){
D8AIVK] hCallWnd[index]=hWnd;
<Iyot]E HotKey[index]=cKey;
ZWRRh^ HotKeyMask[index]=cMask;
.`>l.gmi& bAdded=TRUE;
u<=KC/vZe KeyCount++;
T)
tZU? break;
7Ljj#!`lUp }
Evq Ai/(g }
I#E(r>KW* return bAdded;
a<wQzgxG }
o?mXxL) //删除热键
Dnm.!L8 BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
66@3$P%1p {
tb?F}MEe BOOL bRemoved=FALSE;
A:bPIXb for(int index=0;index<MAX_KEY;index++){
j-`X_8W if(hCallWnd[index]==hWnd){
O0wCb
if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
dEd ]U49u hCallWnd[index]=NULL;
Jp3di&x HotKey[index]=0;
}#HTO:r HotKeyMask[index]=0;
3E!<p bRemoved=TRUE;
`o8{qU,*]N KeyCount--;
zP(=,)d break;
s'aV q B }
'*N9"C }
mDF"&.(j }
(ND5CKCR^ return bRemoved;
fQW_YQsb }
&xBK\ 2'<=H76 &H4uvJ_< DLL中的钩子函数如下:
!q$&JZY {nQ)4.e6 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
)0U3w#,JQ {
MzR1<W{ O BOOL bProcessed=FALSE;
YF! &*6m if(HC_ACTION==nCode)
UGmuX:@y76 {
c/=y*2,zo if((lParam&0xc0000000)==0xc0000000){// 有键松开
88#qu. switch(wParam)
yD[zzEuQ {
xdL/0 N3 case VK_MENU:
\U!@OX.R'M MaskBits&=~ALTBIT;
oT|P1t. break;
Rct"\{V')n case VK_CONTROL:
p<HTJ0 MaskBits&=~CTRLBIT;
fys5-1@-p break;
v;fJM5PA case VK_SHIFT:
%9QMzz5 MaskBits&=~SHIFTBIT;
WO.0K5nfk break;
vr{'FMc default: //judge the key and send message
QOT)x4!) break;
%wt2F-u }
H~[LJ5x for(int index=0;index<MAX_KEY;index++){
#ox9& if(hCallWnd[index]==NULL)
c{mKra continue;
ha|@ Xp if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
&0+x2e)7g {
9u?)vR[@e SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
1m>^{u bProcessed=TRUE;
W&+y(Z-t }
v}F4R $ }
G Sz @rDGY }
y Y>-MoF/t else if((lParam&0xc000ffff)==1){ //有键按下
_/,SZ-C#L4 switch(wParam)
=PNdP {
t1e4H=d> case VK_MENU:
G&x'=dJ MaskBits|=ALTBIT;
lo+xo;Nd break;
0).fBBNG case VK_CONTROL:
5-8]N>/b! MaskBits|=CTRLBIT;
/x break;
3yTQ case VK_SHIFT:
O9t=lrYV! MaskBits|=SHIFTBIT;
F+ffl^BQ break;
ta&Q4v&- default: //judge the key and send message
l60ikc4$I break;
l^k+E-w\ }
(jM<T;4 for(int index=0;index<MAX_KEY;index++){
bK3B3r#$ if(hCallWnd[index]==NULL)
44|deE3Z continue;
T>#TDMU#Fm if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
)K{o<m~WAo {
7w "sJ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
"A%MVym." bProcessed=TRUE;
UhsO\ 9}qH }
L)q`D2|' }
`$J'UXtGc }
{bN Y if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
mT96]V\ for(int index=0;index<MAX_KEY;index++){
VR"u* if(hCallWnd[index]==NULL)
<u0*" continue;
1'Nh jL if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
5B%w]n SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
\WWG>OUh.U //lParam的意义可看MSDN中WM_KEYDOWN部分
,#
]+HS^B }
!0`lu_ZN }
t-_#Q bzE{ }
Iq+2mQi*/k return CallNextHookEx( hHook, nCode, wParam, lParam );
F
y b[{" }
g{e/X~ J;S-+ 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
w{3ycR >GgE,h BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
M3ZOk<O<R BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
zei6S d$}&nV/A) 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:
4bnt=5] f6Ml[!aU LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
N8VVGPa {
k!&:(] if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
&1P(O\d {
J2m"1gq, //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
+@e
}mL\8 SaveBmp();
SgiDh dE return FALSE;
DE%fF,Hk3 }
((qGh>* …… //其它处理及默认处理
" rsSW3_ }
8yn4}`Nc@ ^;+[8:Kb 7SaiS_{: 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。
DY8(g=TI|1 #G[t X6gU 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。
sZKEUSFD # tj[ c#@[B 二、编程步骤
(Izf
L1 SnW7 x 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";
=5?.'XMk Pubv$u2 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
F_
81l< pl|h>4af 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
okstY4f' Tpb"uBiXoo 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
q4/909x= t{zBC?cR 5、 添加代码,编译运行程序。
~ltg "TNVD"RLY 三、程序代码
\^0 !|
xz8G}Ku ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
w.z<60%},0 #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
JGis" e #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
5rloK" #if _MSC_VER > 1000
}RIU8=P #pragma once
>La><.z~ #endif // _MSC_VER > 1000
6WeM rWx #ifndef __AFXWIN_H__
'C^;OjAg #error include 'stdafx.h' before including this file for PCH
&?y7I Pp #endif
&n>7Ir #include "resource.h" // main symbols
Wo!;K|~P class CHookApp : public CWinApp
CW p#^1F {
|cgui public:
F?BS717qS% CHookApp();
)c+k_;t'+ // Overrides
|@wyC0k! // ClassWizard generated virtual function overrides
aClA{ //{{AFX_VIRTUAL(CHookApp)
R%"K public:
kAo.C Nj7 virtual BOOL InitInstance();
Gq1)1 virtual int ExitInstance();
s$ z2 c //}}AFX_VIRTUAL
+rc SL8C //{{AFX_MSG(CHookApp)
+D`*\d1 // NOTE - the ClassWizard will add and remove member functions here.
X{\jK]O // DO NOT EDIT what you see in these blocks of generated code !
Skxd<gv //}}AFX_MSG
ykmv'a$-4 DECLARE_MESSAGE_MAP()
:h*a
rT4{ };
(%'9CfPx LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
<cj{Qk BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
Q4Q pn BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
S-c ^eLzQ BOOL InitHotkey();
`
>U?v BOOL UnInit();
[E|uY]DR #endif
tJ'iX>9I -[heV| $; //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
x)oRSsv!Tr #include "stdafx.h"
*yez:qnx #include "hook.h"
J'Sm0 #include <windowsx.h>
3i=Iu0 #ifdef _DEBUG
W5 ec #define new DEBUG_NEW
tTuX\;G #undef THIS_FILE
bK*~ol static char THIS_FILE[] = __FILE__;
8@eOTzm #endif
:NE/Ddgc' #define MAX_KEY 100
VaR/o# #define CTRLBIT 0x04
=w%O a< #define ALTBIT 0x02
76@qHTh} #define SHIFTBIT 0x01
U(,.D}PG #pragma data_seg("shareddata")
e|lD:_1i HHOOK hHook =NULL;
_A'{la~k UINT nHookCount =0;
*C2R`gpBI static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
N`$!p9r static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
m4m<nnM static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
'*T]fND4 static int KeyCount =0;
@dEiVF`4: static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
4 b,N8 #pragma data_seg()
4XJiIa? HINSTANCE hins;
J2M(1g)t9 void VerifyWindow();
]?K.
S6 BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
lm0N5(XP //{{AFX_MSG_MAP(CHookApp)
Jp~zX
lu // NOTE - the ClassWizard will add and remove mapping macros here.
sWqM?2g // DO NOT EDIT what you see in these blocks of generated code!
7wVH8^| //}}AFX_MSG_MAP
~ ?^/u8 END_MESSAGE_MAP()
]l;*$2w) )jDJMi_[ CHookApp::CHookApp()
N#k61x {
^%<pJMgdF // TODO: add construction code here,
#b)e4vwCq // Place all significant initialization in InitInstance
bF-"tm }
;_+uSalt /aqEJGG> CHookApp theApp;
JL^2l$up LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
w0J|u'H {
8%:]W^ BOOL bProcessed=FALSE;
GbZ;#^S if(HC_ACTION==nCode)
4N>>+]MWc {
A9:NKY{z if((lParam&0xc0000000)==0xc0000000){// Key up
PK2~fJB switch(wParam)
@g-Tk {
TO#Pz.)>B6 case VK_MENU:
cgT MaskBits&=~ALTBIT;
(6gK4__}] break;
T.:+3:8|F case VK_CONTROL:
\}"m'(\c MaskBits&=~CTRLBIT;
H9 tXSh break;
6lFfS!ZFA case VK_SHIFT:
MuI2?:~:*4 MaskBits&=~SHIFTBIT;
l*=aMjd? break;
X[3}?,aqL default: //judge the key and send message
nt
:N!suP3 break;
Ud(`V:d }
pdVQ*=c?M for(int index=0;index<MAX_KEY;index++){
b[ w;i]2 if(hCallWnd[index]==NULL)
'MxSd( T
= continue;
BlC<`2S if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
5/0j}_pP {
,xi({{L* SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
kLP0{A bProcessed=TRUE;
aaW]JmRb }
E/b"RUv}h }
ku&k'V }
jLVl4h& else if((lParam&0xc000ffff)==1){ //Key down
)%Iv[TB[ switch(wParam)
}"s;\?a {
K7)kS case VK_MENU:
b^CNVdo' MaskBits|=ALTBIT;
~N0sJ% break;
2DDsWJ; case VK_CONTROL:
*%FA:Y MaskBits|=CTRLBIT;
7<\C?`q" break;
B4H!5b case VK_SHIFT:
|V,<+BEi MaskBits|=SHIFTBIT;
:!TIK1 break;
p*3; hGp6 default: //judge the key and send message
X` YwP/D break;
L"+$Wc[| }
_2ef LjXQ for(int index=0;index<MAX_KEY;index++)
X[$++p
. {
/F/;G*n if(hCallWnd[index]==NULL)
wIvo"|% continue;
6dqsFns}e if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
KW3+luI6 {
-0uV z) SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
.?W5{U bProcessed=TRUE;
6sfwlT }
=6nD sibf }
<yUstz,Xu^ }
JCniN";r[ if(!bProcessed){
k ]a*&me for(int index=0;index<MAX_KEY;index++){
kAYb!h[` if(hCallWnd[index]==NULL)
{p<Zbm. continue;
[1G^/K" if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
u{H?4|'( SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
7 A$B{ }
e&<yX }
.p`
pG3 }
vw>j J return CallNextHookEx( hHook, nCode, wParam, lParam );
HfNDD|Zz }
#\rwLpC1u eDKxn8+(H BOOL InitHotkey()
E>jh"|f:{ {
g{k1&| if(hHook!=NULL){
%q3$|> nHookCount++;
p*QKK@C return TRUE;
l ,|%7- }
~l[ra else
%r{3wH#D@ hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
iP@6hG`: if(hHook!=NULL)
sy* y\5yJ nHookCount++;
~#K@ADYr return (hHook!=NULL);
Y$>-%KcKeI }
C@\{ehG BOOL UnInit()
]jMKC8uz {
C)-^< if(nHookCount>1){
-NGK@Yk22 nHookCount--;
~"x5U{K48S return TRUE;
U\@A_
B }
UPU+ver BOOL unhooked = UnhookWindowsHookEx(hHook);
ChrY"
if(unhooked==TRUE){
}=](p-] 5 nHookCount=0;
^Mkk@F&1 hHook=NULL;
Njc%_&r }
IXLO>>` return unhooked;
z`Wt%tL( }
R6;Phdh<> Pn.bVV: BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
~`8hwR1&z {
R9vT[{!i BOOL bAdded=FALSE;
9Ru;` for(int index=0;index<MAX_KEY;index++){
5/><$06rq if(hCallWnd[index]==0){
j1$8#/r;c hCallWnd[index]=hWnd;
7u.|XmUz HotKey[index]=cKey;
K]oM8H1 HotKeyMask[index]=cMask;
>zvY\{WY bAdded=TRUE;
% ~]xuP[ KeyCount++;
b]Kk2S/ break;
F'8T;J7 }
F4#g?R::U }
6SM:x]`##, return bAdded;
x+5p1sv6 }
~^I>#Dd #^#Kcg BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
FjfN3#qlg {
@~
Dh'w2q BOOL bRemoved=FALSE;
Et2JxbD for(int index=0;index<MAX_KEY;index++){
CBT>"sYE1 if(hCallWnd[index]==hWnd){
&-l8n^ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
.
v)mZp hCallWnd[index]=NULL;
f'(l&/4z{ HotKey[index]=0;
O>y'Nqz HotKeyMask[index]=0;
q z&+=d@ bRemoved=TRUE;
8ovM\9qT KeyCount--;
jn%kG ~]'Q break;
l3o#@sz: }
LE^G&<! }
FyL_xu\e }
M(q'%XL^ return bRemoved;
r`\A
nT? }
faXx4A2" ^4Am
%yyT void VerifyWindow()
U]~^Z R {
\,UZX&ip for(int i=0;i<MAX_KEY;i++){
%GEJnJ if(hCallWnd
!=NULL){ @ez Tbc3
if(!IsWindow(hCallWnd)){ ,{eUP0]
hCallWnd=NULL; k,Qskd-N]
HotKey=0; 4\5uY
HotKeyMask=0; +#J,BKul
KeyCount--; hIv@i\`
} dj6*6qX0'^
} mY!iu(R1
} &<'n^n
} N[|Nxm0z/C
1t[j"CG(o
BOOL CHookApp::InitInstance() R5_i15<
{ KGHq rc
AFX_MANAGE_STATE(AfxGetStaticModuleState()); Mn: /1eY
hins=AfxGetInstanceHandle(); U!w1AY|
InitHotkey(); qf)$$ qi
return CWinApp::InitInstance(); I,6/21kO
} +A_J1iJ<
,hxkk`
int CHookApp::ExitInstance() 'rP]Nw
{ ;(6g\'m
VerifyWindow(); %~|HFYd
UnInit(); G28O%jD?
return CWinApp::ExitInstance(); BZK`O/
} ]1-z!B 4K
M.}7pJ7f
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file ~=r^3nZR/J
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) $WQq?1.9
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ f2)XP$:
#if _MSC_VER > 1000 >n5:1.g
#pragma once (kBP(2V
#endif // _MSC_VER > 1000 w>?Un,K
u<ySd?
class CCaptureDlg : public CDialog \6|/RFT
{ 1{"llD
// Construction IputF<p
public: Jc4L5*Xn/
BOOL bTray; pj|pcv^
BOOL bRegistered; =wu*D5
BOOL RegisterHotkey(); t6N*6ld2b
UCHAR cKey; |w}w.%
UCHAR cMask; bJr[I
void DeleteIcon(); /G{_7cb
void AddIcon();
Fnx`Ri
UINT nCount; ^W83ByP
void SaveBmp(); G)=HB7u[a
CCaptureDlg(CWnd* pParent = NULL); // standard constructor (AY9oei>
// Dialog Data ri~<~oB2:
//{{AFX_DATA(CCaptureDlg) /Poet%XvRx
enum { IDD = IDD_CAPTURE_DIALOG }; n_K~vD
CComboBox m_Key; ["<nq`~
BOOL m_bControl; 1,y&d}GW
BOOL m_bAlt; 0O!cN_l|
BOOL m_bShift; WUdKLx%F
CString m_Path; ][PzgzG
CString m_Number; #>;FUZuJr
//}}AFX_DATA $e%2t^ i.g
// ClassWizard generated virtual function overrides 8Ad606
//{{AFX_VIRTUAL(CCaptureDlg) u8b2$D
public: "GT4s?6O
virtual BOOL PreTranslateMessage(MSG* pMsg); qf'm=efRyu
protected:
dBCbL.!
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support -!qu"A:
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); mumXUX
//}}AFX_VIRTUAL wy1X\PJjH
// Implementation *2"6fX[
protected: yWPIIWHx!
HICON m_hIcon; dP$GThGl
// Generated message map functions sf}Dh
//{{AFX_MSG(CCaptureDlg) AtS;IRN@
virtual BOOL OnInitDialog(); igf)Hb;5
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); {aKqXL[UP
afx_msg void OnPaint(); xk~IN%\
afx_msg HCURSOR OnQueryDragIcon(); Eq%@"-mo
virtual void OnCancel(); k?nQ?B
W
afx_msg void OnAbout(); <c[U#KrvJ
afx_msg void OnBrowse(); .uo.N
afx_msg void OnChange(); ~iBgw&Y
//}}AFX_MSG c{ZY,C&<
DECLARE_MESSAGE_MAP() YO)$M-]>%J
}; EC&@I+'8Q
#endif +H/jK @
Y>."3*^
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file D:\ g,\Z
#include "stdafx.h" "tit\a6\(
#include "Capture.h" dth&?/MERL
#include "CaptureDlg.h" Rn%N&1
Ef
#include <windowsx.h> -a Gcf]6
#pragma comment(lib,"hook.lib") 4o:hyh
#ifdef _DEBUG I&9S;I$
#define new DEBUG_NEW ;#G oGb4AM
#undef THIS_FILE `L;eba
static char THIS_FILE[] = __FILE__; EUYCcL'G
#endif oz'\q0
#define IDM_SHELL WM_USER+1 FUK3)lT
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); FxG7Pk+=
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); 6~:Sgt nU
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; UAF<m1
class CAboutDlg : public CDialog stl 1QO(h
{ " }gVAAvc7
public: {)f~#37
CAboutDlg(); D-imL;|
// Dialog Data <|O^>s;
//{{AFX_DATA(CAboutDlg) ylf[/='0K
enum { IDD = IDD_ABOUTBOX }; v}G]X Z8
//}}AFX_DATA ulHn#)
// ClassWizard generated virtual function overrides !;@_VWR
//{{AFX_VIRTUAL(CAboutDlg) h<l1]h+x
protected: `+lHeLz':
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support <<9Va.
//}}AFX_VIRTUAL "i.r@<)S
// Implementation Z{IUy
protected: T`/IO.2
//{{AFX_MSG(CAboutDlg) WzW-pV]
//}}AFX_MSG ?zJpD8e
DECLARE_MESSAGE_MAP() 39U5jj7i
}; Oh.ZPG=
){s*n=KIO
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) xieP "6
{ Y-piL8Xc
//{{AFX_DATA_INIT(CAboutDlg) /z7VNkD
//}}AFX_DATA_INIT $!vxVs9n
} j83? m
&WXY 'A=
void CAboutDlg::DoDataExchange(CDataExchange* pDX) Dq\ Jz~
{ T[k4lM
CDialog::DoDataExchange(pDX); JN/UUfj
//{{AFX_DATA_MAP(CAboutDlg) vP%tk s+.
//}}AFX_DATA_MAP pi( -A
} LVIAF0kX
75!9FqMZ}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 4:3rc7_
1
//{{AFX_MSG_MAP(CAboutDlg) pN6%&@) =
// No message handlers 2 gq$C"
//}}AFX_MSG_MAP yn
AB
END_MESSAGE_MAP() os3 8u!3-
]e:/"
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) pnyWcrBf
: CDialog(CCaptureDlg::IDD, pParent) + Y.1)i}
{ H?1xjY9sl
//{{AFX_DATA_INIT(CCaptureDlg) cxeghy:;U
m_bControl = FALSE; =-cwXo{Q.O
m_bAlt = FALSE; %\O#&=$E
m_bShift = FALSE; A*h{Lsx;
m_Path = _T("c:\\"); R9We/FhOY
m_Number = _T("0 picture captured."); kB:Uu}(=N
nCount=0; NE8 jC7
bRegistered=FALSE; .%BT,$1K
bTray=FALSE; # M, 7
//}}AFX_DATA_INIT !"Yj|Nu6
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 =rA~7+}
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); Zv]x'3J#Y
} `cz2DR-"
A$0H
.F>
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) d9*hBm
{ p=GWq(S6
CDialog::DoDataExchange(pDX); 0Q,g7K<d
//{{AFX_DATA_MAP(CCaptureDlg) v dbO(
DDX_Control(pDX, IDC_KEY, m_Key);
xp'_%n~K@
DDX_Check(pDX, IDC_CONTROL, m_bControl); 0|xIBg)
DDX_Check(pDX, IDC_ALT, m_bAlt); FLal}80.o:
DDX_Check(pDX, IDC_SHIFT, m_bShift); 2=0DCF;Bv
DDX_Text(pDX, IDC_PATH, m_Path); <P ,~eX(r
DDX_Text(pDX, IDC_NUMBER, m_Number); TlL^7f}
//}}AFX_DATA_MAP VpfUm?Nq
} O-]mebTvw
{%)s.5Pfw
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog)
e:E0 "<
//{{AFX_MSG_MAP(CCaptureDlg) m`#Od^vk
ON_WM_SYSCOMMAND() |@?%Ct
ON_WM_PAINT() Sgim3):Z
ON_WM_QUERYDRAGICON() 7qO a
;^T
ON_BN_CLICKED(ID_ABOUT, OnAbout) #&<)! YY5
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) X)SDG#&+bF
ON_BN_CLICKED(ID_CHANGE, OnChange) rD?L
//}}AFX_MSG_MAP dG QG!l+>
END_MESSAGE_MAP() dF0,Y?
%98' @$:0
BOOL CCaptureDlg::OnInitDialog() ;Mm7n12z C
{ m42T9wSsx
CDialog::OnInitDialog(); G CRz<)1
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); g
6]epp[8
ASSERT(IDM_ABOUTBOX < 0xF000); lN,/3\B
CMenu* pSysMenu = GetSystemMenu(FALSE); :(dHY
if (pSysMenu != NULL) kp?w2+rz
{ gK#mPcn^
CString strAboutMenu; M7f;Pa
strAboutMenu.LoadString(IDS_ABOUTBOX); eD$M<Eu
if (!strAboutMenu.IsEmpty()) ?oZR.D|SZ
{ ~DO4,
pSysMenu->AppendMenu(MF_SEPARATOR); -yxOBq
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); kK8itO
} 4=uhh
} iu**`WjI\
SetIcon(m_hIcon, TRUE); // Set big icon AE: Z+rM*
SetIcon(m_hIcon, FALSE); // Set small icon G;>
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m_Key.SetCurSel(0); x@mL $
RegisterHotkey(); i'stw6*J
CMenu* pMenu=GetSystemMenu(FALSE); ob+euCuJ
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); xw{-9k-~
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); 86@c't@
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); js1!9%BV
return TRUE; // return TRUE unless you set the focus to a control ( mxT2"fC
} C]^H&
dd2[yKC`
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) f= >OJ!:
{ |6Gm:jV
if ((nID & 0xFFF0) == IDM_ABOUTBOX) e \O/H<
{ =b;>?dP
CAboutDlg dlgAbout; !+u"3;%h
dlgAbout.DoModal(); (}. @b|s
} dEBcfya
else XdH\OJ
{ zMIT}$L
CDialog::OnSysCommand(nID, lParam); nRd)++
} 9rh}1eo7
} v}WR+)uFQ
&A#~)i5gF
void CCaptureDlg::OnPaint() a^ ,(v
{ keRE==(D
if (IsIconic()) 4Llo`K4
{ t6v/sZ{F
CPaintDC dc(this); // device context for painting 9@Cv5L?p\
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); \uss Uv
// Center icon in client rectangle W0I#\b18
int cxIcon = GetSystemMetrics(SM_CXICON); Spt?>sm
int cyIcon = GetSystemMetrics(SM_CYICON); 2Sm}On
CRect rect; = k\J<
GetClientRect(&rect); tTd\|
int x = (rect.Width() - cxIcon + 1) / 2; RK w$- 7O
int y = (rect.Height() - cyIcon + 1) / 2; x@8a''
// Draw the icon /VG2.:
dc.DrawIcon(x, y, m_hIcon); 6(PM'@i
} <w3!!+oK"
else \"hJCP?,
{ D7_*k%;@
CDialog::OnPaint(); F;^F+H
} C]Q8:6b
} A 7[:5$
N&@}/wzZ
HCURSOR CCaptureDlg::OnQueryDragIcon() vv26I
{ ||yzt!n
return (HCURSOR) m_hIcon; dH( ('u[
} >:lnt /N3
cX3l t5
void CCaptureDlg::OnCancel() s+>:,U<A
{ ]l8^KX'
if(bTray) ,AT[@
DeleteIcon(); EqI(|bFwy
CDialog::OnCancel(); Uix6GT;
} (h:Rh
Jaz?Ys|S
void CCaptureDlg::OnAbout() k5]j.V2f
{ iYC9eEF
CAboutDlg dlg; 7`u$
dlg.DoModal(); y!xE<S&Y
}
D= 7c(
0wS+++n$5
void CCaptureDlg::OnBrowse() oY, %Iq
{ Q|@4bz i)
CString str; NIw\}[-Z0E
BROWSEINFO bi; IsR!'%Pu
char name[MAX_PATH]; n?V+dC=F}
ZeroMemory(&bi,sizeof(BROWSEINFO)); bV"G~3COy
bi.hwndOwner=GetSafeHwnd(); T1H"\+
bi.pszDisplayName=name; ZRYEqSm
bi.lpszTitle="Select folder"; ={u0_j
W
bi.ulFlags=BIF_RETURNONLYFSDIRS; %iw3oh&Fkm
LPITEMIDLIST idl=SHBrowseForFolder(&bi); m4*@o?Ow
if(idl==NULL) @e{^`\ l=<
return; A`R{m0A
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); Dwzg/F(
str.ReleaseBuffer(); vhhC>
7
m_Path=str; l}qE 46EL
if(str.GetAt(str.GetLength()-1)!='\\') A<ynIs<
m_Path+="\\"; Q%f|~Kl-hd
UpdateData(FALSE); %.vVEy
} c_>f0i
9YBv|A
void CCaptureDlg::SaveBmp() {^N[("`
{ ~ar=PmYV7
CDC dc; KZeQ47|
dc.CreateDC("DISPLAY",NULL,NULL,NULL); ccL~#c0P7
CBitmap bm; h\'n**f_x
int Width=GetSystemMetrics(SM_CXSCREEN); 4
uQT5
int Height=GetSystemMetrics(SM_CYSCREEN); ,GgAsj: K
bm.CreateCompatibleBitmap(&dc,Width,Height); 'PP#^aI,
CDC tdc; Sfr&p>{,
tdc.CreateCompatibleDC(&dc); M.>l#4s,'
CBitmap*pOld=tdc.SelectObject(&bm); Ox@P6|m
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); ZIF49`Y4TF
tdc.SelectObject(pOld); 3*@5S]]
BITMAP btm; Y3=_ec3w
bm.GetBitmap(&btm); LlSZr)X
DWORD size=btm.bmWidthBytes*btm.bmHeight; %!1Q P[}K
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); m1*O0Tg]"
BITMAPINFOHEADER bih; dc rSz4E|>
bih.biBitCount=btm.bmBitsPixel; M8TSt\
bih.biClrImportant=0; |ely|U. Tf
bih.biClrUsed=0; l\n@cQR
bih.biCompression=0; hh[jN7K
bih.biHeight=btm.bmHeight; k]I0o)+O.
bih.biPlanes=1; wT{nu[=GH*
bih.biSize=sizeof(BITMAPINFOHEADER); ,tg0L$qC
bih.biSizeImage=size; &%/7E_j7
bih.biWidth=btm.bmWidth; 3=L.uXVb
bih.biXPelsPerMeter=0; p"U,G
-_
bih.biYPelsPerMeter=0; "V}[':fen
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); h3;bxq!q
static int filecount=0; [#sz WNfU
CString name; J^g!++|2P
name.Format("pict%04d.bmp",filecount++); 9tqF8pb7v
name=m_Path+name; _hk.2FV:3m
BITMAPFILEHEADER bfh; qQH]`#P
bfh.bfReserved1=bfh.bfReserved2=0; P$-X)c$&
bfh.bfType=((WORD)('M'<< 8)|'B'); &kpwo )
bfh.bfSize=54+size; Zg.&