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:
VFO&)E/-
O0=,&=i 一、实现方法
,XBV }y Dbkuh!R 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:
sBuq SG+i\yu$h0 #pragma data_seg("shareddata")
2=!3[>
B HHOOK hHook =NULL; //钩子句柄
0c\|S>g[ UINT nHookCount =0; //挂接的程序数目
!mErt2UJl static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
YjIED,eRv static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
:yO, static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
==e#CSJq static int KeyCount =0;
sJHy=z0m static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
wk@(CKQzI, #pragma data_seg()
H[_uVv;}6 K#6`LL m 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
x>8}|ou \{+nXn DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
^*?B)D =, wE8a4. BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
/F8\%l+ cKey,UCHAR cMask)
xJF6l!` {
\$~oH3m& BOOL bAdded=FALSE;
0imqj7L for(int index=0;index<MAX_KEY;index++){
_'v }=:X if(hCallWnd[index]==0){
u=v%7c2Mx} hCallWnd[index]=hWnd;
qeK HotKey[index]=cKey;
tE9_dR^K HotKeyMask[index]=cMask;
Z.Y;[Y
bAdded=TRUE;
{KpH|i KeyCount++;
utm+\/ break;
.'NO~ }
G
&rYz }
4f*Ua`E_ return bAdded;
p$b=r+1f }
!ovZ>,1 //删除热键
cJ(zidf_$ BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
1R+ )T'in {
c^[1]'y BOOL bRemoved=FALSE;
(zTI)EV for(int index=0;index<MAX_KEY;index++){
=
"hY{RUa if(hCallWnd[index]==hWnd){
2cX"#."5p if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
[nPzhXs hCallWnd[index]=NULL;
,0<F3h HotKey[index]=0;
lJ>QTZH!wW HotKeyMask[index]=0;
`6S=KRv bRemoved=TRUE;
BqEubP(si KeyCount--;
<cfH'~ break;
J!K/7uS }
W1vAK }
XpAq=p0; }
e=F( Zf+1^ return bRemoved;
9snyX7/!L }
'__3[D ZNH*[[Pf GT\s!D;< DLL中的钩子函数如下:
3RH#e1Y f{ 4G LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
v[yTk[zd0 {
^p- e BOOL bProcessed=FALSE;
U0bEB if(HC_ACTION==nCode)
'B<qG<> {
8hdAXWPn if((lParam&0xc0000000)==0xc0000000){// 有键松开
5vh"PlK`s switch(wParam)
ao";5m {
O]%m{afM case VK_MENU:
";Ig%] MaskBits&=~ALTBIT;
FnQ_=b
break;
|`t!aG8 case VK_CONTROL:
C7 &
6rUX MaskBits&=~CTRLBIT;
pv?17(w(\ break;
[sY1|eX case VK_SHIFT:
n.qxxzEN MaskBits&=~SHIFTBIT;
g;Sg
2 break;
qxcBj default: //judge the key and send message
DEwtP break;
WoWM }
0)Um W{ for(int index=0;index<MAX_KEY;index++){
$E_vCB_ if(hCallWnd[index]==NULL)
:iNAXy continue;
ZYD88kQ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
zf;[nz {
't%%hw-m} SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
[Fj#7VZK bProcessed=TRUE;
0|> }
e}4^N1'd/ }
\NQ)Po@z }
$\@ V4 else if((lParam&0xc000ffff)==1){ //有键按下
ZM^;%( switch(wParam)
ZO0]+Ko {
'%RK KA case VK_MENU:
#`L}. MaskBits|=ALTBIT;
n]fbV/ x break;
GuY5 %wr case VK_CONTROL:
= SJF\Z MaskBits|=CTRLBIT;
|{LaZXU & break;
WAmoKZw2 case VK_SHIFT:
-hR\Y2? MaskBits|=SHIFTBIT;
m#K%dR
break;
j.N\U#3KK default: //judge the key and send message
@N_H]6z4 break;
l}-`E@w }
a<"& RnG( for(int index=0;index<MAX_KEY;index++){
_xL&sy09t if(hCallWnd[index]==NULL)
3jeV4| continue;
m"7 R
4O if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Y6%OV?}v! {
Yg,lJ!q SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
n@,eZ! bProcessed=TRUE;
p{svXP K }
M-K@n$k }
UpseU8Wo }
@#Uiy5N if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
{ro!OuA for(int index=0;index<MAX_KEY;index++){
+Y]*>afG if(hCallWnd[index]==NULL)
*`pBQZn05O continue;
la{uJ9Iw@} if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
PZg]zz=V4 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
V//q$/&8( //lParam的意义可看MSDN中WM_KEYDOWN部分
_v=WjN }
p}|wO&4h }
vfTG*jG }
la|l9N^, return CallNextHookEx( hHook, nCode, wParam, lParam );
=}GyI_br;8 }
H1qw1[%0y I5OH=,y` 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
Dlf=N$BL7d 5
^J8<s@_ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
ZV4'
|q BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
2OlC7X{ {!Z_&i5 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:
"<$vU_ t}+c/ C%b= LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
!,!tNs1 K {
by<@Zwtf
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
.LcE^y[V {
"57G@NC{n //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
n >PM_W SaveBmp();
poFjhq
/#( return FALSE;
'wlP` 7&Tn }
7.rZ%1N …… //其它处理及默认处理
J3S+| x h~ }
ayz1i:Q| |/\1nWD o?
"@9O? 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
9}$dwl( pcTXTy 28 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。
@wJa33QT #|h8u` 二、编程步骤
8B+^vF
_H<OfAO 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";
J$*["y`+ `2,_"9Z( 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
?o5#Ve$-X @@mW+16 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;
vUx$[/< yzb& 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
y/VmjsN} 7$P(1D4 5、 添加代码,编译运行程序。
;OqLNfU3y .T wF]v 三、程序代码
b=\3N3OX n7.lF ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
NfN6KDd]2L #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
<%uZwk># #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
rWKLxK4oU #if _MSC_VER > 1000
k\Tm?^L) #pragma once
`9{C/qB #endif // _MSC_VER > 1000
.h^Ld,Chj #ifndef __AFXWIN_H__
I19F\
L`4 #error include 'stdafx.h' before including this file for PCH
&?sjeC_ #endif
usf(U> #include "resource.h" // main symbols
-vAG5x/ , class CHookApp : public CWinApp
([o:_5/8I {
]=<@G.[= public:
J
uKaRR~ CHookApp();
,?~,"IQyi[ // Overrides
CGl+!t{ // ClassWizard generated virtual function overrides
irj}:f;!eF //{{AFX_VIRTUAL(CHookApp)
|ema-pRC public:
Vzm7xl [ virtual BOOL InitInstance();
ZaindX{.1 virtual int ExitInstance();
6.=1k //}}AFX_VIRTUAL
vGp@YABM //{{AFX_MSG(CHookApp)
~x|Sv4M // NOTE - the ClassWizard will add and remove member functions here.
c2:kZxT // DO NOT EDIT what you see in these blocks of generated code !
_tJURk% //}}AFX_MSG
}kefrT DECLARE_MESSAGE_MAP()
~2ei+#d!^ };
|q)Q<%VS' LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
A~SSu.L@ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
Mn;CG'FA BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
)PNk
O3 BOOL InitHotkey();
90D.G_45 BOOL UnInit();
F$p,xFH# #endif
vA~hkkj{ <)rH8]V //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
4HmRsOl #include "stdafx.h"
3_-m>J**
#include "hook.h"
|<icx8hbr #include <windowsx.h>
74wa #ifdef _DEBUG
D)6|| z} #define new DEBUG_NEW
sOenR6J<$ #undef THIS_FILE
:PkSX*E[q static char THIS_FILE[] = __FILE__;
T5G+^XDA #endif
@cNI|T #define MAX_KEY 100
#]^`BQ> #define CTRLBIT 0x04
ueo3i1 #define ALTBIT 0x02
T8
/'`s #define SHIFTBIT 0x01
WG4|Jf Y #pragma data_seg("shareddata")
&_gmQ;%t: HHOOK hHook =NULL;
40/[uW" UINT nHookCount =0;
2b1:Tt9 static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
Ut@)<N static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
,aL"Wy( static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
v9kzMxs, static int KeyCount =0;
6Z:|"AwC2 static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
H[U*'
2TJ #pragma data_seg()
BtZm_SeA HINSTANCE hins;
-ZJ:< void VerifyWindow();
Vdyx74xX BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
!OemS7{ //{{AFX_MSG_MAP(CHookApp)
B)*%d7=x // NOTE - the ClassWizard will add and remove mapping macros here.
tF(mD=[ // DO NOT EDIT what you see in these blocks of generated code!
0Z(b/fdS //}}AFX_MSG_MAP
VQ`O;n6/` END_MESSAGE_MAP()
_~"3
LB vi|ASA{V CHookApp::CHookApp()
EQ-~e {
,oe4*b}O=. // TODO: add construction code here,
L}nc'smvM // Place all significant initialization in InitInstance
%VZ\4+8S }
>48Y-w hG)lVo!L4j CHookApp theApp;
n_hD LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
vkLG<Y {
p%'((!a2 BOOL bProcessed=FALSE;
#kEdf0 if(HC_ACTION==nCode)
PX'%)5:q;i {
X_2I4Jz]6 if((lParam&0xc0000000)==0xc0000000){// Key up
['<rfK switch(wParam)
7#QH4$@1P {
D1 z3E;: case VK_MENU:
fRmc_tx MaskBits&=~ALTBIT;
o,I642R~ break;
L}+!<Ug case VK_CONTROL:
j>zVC;Sj* MaskBits&=~CTRLBIT;
rKxk?} break;
C: cu1Y9 case VK_SHIFT:
=?hlgQ MaskBits&=~SHIFTBIT;
~ME=!;<_ break;
NeP1 # default: //judge the key and send message
T@.CwV break;
u@Lu.t!], }
FSk:J~Z; for(int index=0;index<MAX_KEY;index++){
X:5*LB\/v if(hCallWnd[index]==NULL)
-TWo-iu^ continue;
.>e~J+oL if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
@P>@;S {
7[\B{N9&W SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
`{":*V
bProcessed=TRUE;
ufOaD7 }
<j'#mUzd }
xPv&(XZR }
nq;)!Wry else if((lParam&0xc000ffff)==1){ //Key down
W`
V switch(wParam)
w,7
GC5j\ {
V{r@D!} case VK_MENU:
tuSgh! MaskBits|=ALTBIT;
`,O^=HBM break;
xM,3F jF case VK_CONTROL:
+TX]~k79Oq MaskBits|=CTRLBIT;
'7^_$M3$\ break;
KN=Orx7Gy case VK_SHIFT:
}e$);A| MaskBits|=SHIFTBIT;
V
RL6F2 >6 break;
'*:YC default: //judge the key and send message
\<%a`IA!* break;
rv%Xvs B }
DzEixE- for(int index=0;index<MAX_KEY;index++)
}m?L/Y'} {
&nYmVwi?"Q if(hCallWnd[index]==NULL)
y[vjqfdmU continue;
n3w2& if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
;L7<mU {
=}[V69a SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
A`KTm( bProcessed=TRUE;
y? g7sLDc }
E^!%m8-- }
mAMKCxz, }
qJ!xhf1 if(!bProcessed){
T&%>/7I> for(int index=0;index<MAX_KEY;index++){
-T>`PJpJuL if(hCallWnd[index]==NULL)
Z.<B>MD8^ continue;
MX34qJ9k if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
H>B:jJf SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
sXUM,h8$!+ }
f &H`h }
G7yxCU(I\ }
L2N/DB'{ return CallNextHookEx( hHook, nCode, wParam, lParam );
TBpW/wz/ }
S}+n\pyQ l"Css~^ BOOL InitHotkey()
!O\r[c {
'*pq@|q;t if(hHook!=NULL){
{`: != nHookCount++;
R]dB Uu return TRUE;
I4$a#; }
,SBL~JJ else
2Y,s58F hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
4 ClW*l if(hHook!=NULL)
'=r.rW5 nHookCount++;
k$zDofdfp return (hHook!=NULL);
C$_H)I }
h1"#DnK7 BOOL UnInit()
'ySWf,Q^ {
6Z3v]X if(nHookCount>1){
,J[sg7vcv nHookCount--;
L6FUC6x" return TRUE;
r8qee$^M }
607#d):Y BOOL unhooked = UnhookWindowsHookEx(hHook);
6^~&sA if(unhooked==TRUE){
0-@waK nHookCount=0;
Z^sO`C hHook=NULL;
7HzKjR=B }
IL<5Suz: return unhooked;
vUW ! }
{W-PYHZ; IJ!UKa*o% BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
I++!F,pB {
u3q!te BOOL bAdded=FALSE;
7>.^GD for(int index=0;index<MAX_KEY;index++){
+}^ if(hCallWnd[index]==0){
=zsXa=< hCallWnd[index]=hWnd;
Jyd%!v HotKey[index]=cKey;
\"5 \hX~dS HotKeyMask[index]=cMask;
twJck~l~n bAdded=TRUE;
Ys\l[$_`* KeyCount++;
} nQHP4' break;
/HLQ }
7|2:;5:U }
re<"%D return bAdded;
9Y7 tI3 }
-V9Cx_]y v^e[`]u( BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
I%%$O'S {
L-fAT'!' BOOL bRemoved=FALSE;
'+`CwB2 for(int index=0;index<MAX_KEY;index++){
(\]_/ W if(hCallWnd[index]==hWnd){
REHfk6YE if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
-wY6da*.W hCallWnd[index]=NULL;
%o5GD HotKey[index]=0;
Dgdh3q; HotKeyMask[index]=0;
k|w6&k3 bRemoved=TRUE;
a+MC[aFr KeyCount--;
TiH(HW|: break;
$u>^A<TBN }
U\ 51j }
BKN]DxJ6 }
)xi|BqQz return bRemoved;
,O2Uj3" }
m'%F,c) ;R/=9l void VerifyWindow()
nuvz!<5\{ {
7bTs+C_;7 for(int i=0;i<MAX_KEY;i++){
Nz2}Ma 2 if(hCallWnd
!=NULL){ L-Z1Xs
if(!IsWindow(hCallWnd)){ ?Hq`*I?b9
hCallWnd=NULL; %e3lb<sv6
HotKey=0; |gT$M_}
HotKeyMask=0; D|OX]3~
KeyCount--; Q}G
} b+hZ<U/
} ]Dx5t&
} [j&>dE
} Dtn|$g,
4/HyO\?z5
BOOL CHookApp::InitInstance() X^"95Ic
{ eGZIdv1
AFX_MANAGE_STATE(AfxGetStaticModuleState()); n}a# b%e
hins=AfxGetInstanceHandle(); (xq25;|Y
InitHotkey(); YckexfL
return CWinApp::InitInstance();
~B/|#o2
} >/Slk{
7quhp\
int CHookApp::ExitInstance() wN;o++6V
{ HAP9XC(F]
VerifyWindow(); O75ioO0
UnInit(); D*heYh
return CWinApp::ExitInstance(); cJL>,Z<|%
} VYvHpsI
DLf6D |"
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file [S'ngQ"f`
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) }&ZO
q'B
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ b5KX` r
#if _MSC_VER > 1000 *pj&^W?
#pragma once @eR>?.:&
#endif // _MSC_VER > 1000 GN(PH/fO9
)R,*>-OPJL
class CCaptureDlg : public CDialog s}UPe)Vu
{ 2g|+*.*`
// Construction Gu9Ap<>!
public: ;p)gTQa
BOOL bTray; PJO +@+"{@
BOOL bRegistered; ."cC^og
BOOL RegisterHotkey(); ig3uY#
UCHAR cKey; 1NA>W
UCHAR cMask; _epi[zf@
void DeleteIcon(); -SZ^;t
void AddIcon(); q^k6.5*"
UINT nCount; ;
*r5 d+]
void SaveBmp(); !=Cd1
$<
CCaptureDlg(CWnd* pParent = NULL); // standard constructor J$@3,=L6V
// Dialog Data -&%#R_RV
//{{AFX_DATA(CCaptureDlg) {'EQ%H$q
enum { IDD = IDD_CAPTURE_DIALOG }; 0t'WM=W<!8
CComboBox m_Key; -g_PJ.Hk
BOOL m_bControl; C {gYrz)
BOOL m_bAlt; Vtr0=-m&
BOOL m_bShift; LBbk]I
CString m_Path; x_AG=5OJX,
CString m_Number; {
+MqXeq
//}}AFX_DATA sYgpK92
// ClassWizard generated virtual function overrides D<C ZhYJ
//{{AFX_VIRTUAL(CCaptureDlg) /mF%uI>:
public: <LH(>
virtual BOOL PreTranslateMessage(MSG* pMsg); !/sXG\
protected:
AI/xOd!a
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 9Iy>oV
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); h{qB\aK
//}}AFX_VIRTUAL %Gh!h4Pv
// Implementation utfD$8UI
protected: H~Hh$-z
HICON m_hIcon; u 6$fF=
// Generated message map functions >@`D@_v
//{{AFX_MSG(CCaptureDlg) ]t(;bD hT
virtual BOOL OnInitDialog(); q>?uB4>^
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); 7P|GKN~
afx_msg void OnPaint(); zHeqV
afx_msg HCURSOR OnQueryDragIcon(); Z<;am
virtual void OnCancel(); _/ ]4:("
afx_msg void OnAbout(); ~;9B\fE`
afx_msg void OnBrowse(); <Pg4>
afx_msg void OnChange(); #'_i6
//}}AFX_MSG R=_
fk
DECLARE_MESSAGE_MAP() R 6ca;
}; *&^`Uk,[
#endif ?1JS*LQ$
uF/l,[0v
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file 3T+#d-\
#include "stdafx.h" "at*G>+
#include "Capture.h" %nSLe~b
#include "CaptureDlg.h" S{XV{o
#include <windowsx.h> LhUrVydL
#pragma comment(lib,"hook.lib") @Q
8E)k@
#ifdef _DEBUG ]Wa.k
#define new DEBUG_NEW %lF}!
#undef THIS_FILE *$0uAN
static char THIS_FILE[] = __FILE__; C{H:-"\J9
#endif ^/h,C^/;
#define IDM_SHELL WM_USER+1 8F9sKRq|rO
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); 4en[!*
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); ]hJ#%1
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; NnRR"'
class CAboutDlg : public CDialog )`, Bt
{ ou0(C`
public: +vY8HQ|v
CAboutDlg(); ]X ,f
// Dialog Data gf$5pp-
//{{AFX_DATA(CAboutDlg) KU|dw^Y k
enum { IDD = IDD_ABOUTBOX }; sL[&y'+
//}}AFX_DATA 1\X1G>60m
// ClassWizard generated virtual function overrides *F42GiBZR
//{{AFX_VIRTUAL(CAboutDlg) ""|vhgP
protected: 8vjaQ5
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support D~P I_*h.
//}}AFX_VIRTUAL fo;Ftf0
// Implementation no~hYyW2
protected: 5|. _K(M
//{{AFX_MSG(CAboutDlg) X~(%Y#6
//}}AFX_MSG 3C=ON.1eg
DECLARE_MESSAGE_MAP() ~G+o;N,V
}; vN=e1\
p~vq1D6
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) 5xtIez]x?
{ Ztu _UlGC
//{{AFX_DATA_INIT(CAboutDlg) 8+5z -vd
//}}AFX_DATA_INIT 7O84R^!|2
} Q ;V `
$ d? N("L
void CAboutDlg::DoDataExchange(CDataExchange* pDX) Hpo7diBE
{ $k5mI1~
CDialog::DoDataExchange(pDX); e@}zp
//{{AFX_DATA_MAP(CAboutDlg) ~M7
J{hK
//}}AFX_DATA_MAP ?=}~]A5N
} ]A+q:kP
f?}~$agc
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) ,<!_MNw[
//{{AFX_MSG_MAP(CAboutDlg) ,1J+3ugp&
// No message handlers vN'Y);$
//}}AFX_MSG_MAP ?0QoYA@.$
END_MESSAGE_MAP() wcDHx#~
)`<-
c2
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) )L fXb9}
: CDialog(CCaptureDlg::IDD, pParent) %%5K%z,R#
{ k`[ L
//{{AFX_DATA_INIT(CCaptureDlg) u2%/</]h
m_bControl = FALSE; MY1s
m_bAlt = FALSE; XaOq &7
m_bShift = FALSE; nKPvAe(
m_Path = _T("c:\\"); mMo<C_~w&
m_Number = _T("0 picture captured."); ~Y]*TP
nCount=0; BiI?eT+
bRegistered=FALSE; RKB--$ibj
bTray=FALSE; K89 AZxH
//}}AFX_DATA_INIT tai
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 Hry*.s -
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); j[2?}?
} EA_6L\+8&
o0t/
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) C QO gR GW
{ unn2MP'
CDialog::DoDataExchange(pDX); \@6PA
//{{AFX_DATA_MAP(CCaptureDlg) lt%bGjk
DDX_Control(pDX, IDC_KEY, m_Key); `hJSo?G>
DDX_Check(pDX, IDC_CONTROL, m_bControl); (o`"s~)
DDX_Check(pDX, IDC_ALT, m_bAlt); $w!; ~s
DDX_Check(pDX, IDC_SHIFT, m_bShift); AT.WXP0$A
DDX_Text(pDX, IDC_PATH, m_Path); G4DuqN~2m
DDX_Text(pDX, IDC_NUMBER, m_Number); ^,F8 ha
//}}AFX_DATA_MAP N]qX^RSb
} $42%H#
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BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) $7
1(g$6#
//{{AFX_MSG_MAP(CCaptureDlg) lB_&Lq8G
ON_WM_SYSCOMMAND() l'h[wwEXm{
ON_WM_PAINT() ~&)
ON_WM_QUERYDRAGICON() Rf7*Ut
wVr
ON_BN_CLICKED(ID_ABOUT, OnAbout) U)mg]o-VE
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) cEzWIS?pp\
ON_BN_CLICKED(ID_CHANGE, OnChange) HivmKn`
//}}AFX_MSG_MAP KFxy,Z$-4
END_MESSAGE_MAP() k\,01Y^
;;4xpg
BOOL CCaptureDlg::OnInitDialog() {p#[.E8
{ Okd?=*sBx
CDialog::OnInitDialog(); n$>E'oG2t
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); v"x{oD$R
ASSERT(IDM_ABOUTBOX < 0xF000); ;533;(d*o
CMenu* pSysMenu = GetSystemMenu(FALSE); j(JUOief
if (pSysMenu != NULL) +Ja9p
{ 38(Cj~u=3
CString strAboutMenu; LZC)vF5
strAboutMenu.LoadString(IDS_ABOUTBOX); F@=)jrO=$
if (!strAboutMenu.IsEmpty()) |/LCwq%
{ V *2=S
pSysMenu->AppendMenu(MF_SEPARATOR); ,":l >0P[
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); %) A-zzj
} JUBihw4
} }M%U}k]+@
SetIcon(m_hIcon, TRUE); // Set big icon e>"/Uii
SetIcon(m_hIcon, FALSE); // Set small icon "n'LF?/H'
m_Key.SetCurSel(0); K.CwtUt`54
RegisterHotkey(); #)im9LLC#
CMenu* pMenu=GetSystemMenu(FALSE); 6OeRBD&
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); 6@ `'}
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); M+Rxt.~6
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); iM'{,~8R5
return TRUE; // return TRUE unless you set the focus to a control TMsEHd
} @r.u8e)l
,]ALyWGuX
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) fG;(&Dx
{ S(;3gQ77
if ((nID & 0xFFF0) == IDM_ABOUTBOX) b.jxkx\nt
{ q!l[^t|;
CAboutDlg dlgAbout; ==d@0`
dlgAbout.DoModal(); G[U'-a}I
} Vj.5b0/(
else y~jKytq^@
{ 4BSSJ@z
CDialog::OnSysCommand(nID, lParam); wr\d5j
} Z$h39hm?c
} x @EEMO1_"
71GLqn?
void CCaptureDlg::OnPaint() Oh9jr"Gm=
{ :hB
8hTw]p
if (IsIconic()) -u6`B-T
{ ,~@0IKIA
Q
CPaintDC dc(this); // device context for painting YE#OAfj~
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); GdN'G
// Center icon in client rectangle ^s'ozCk 0
int cxIcon = GetSystemMetrics(SM_CXICON); 2+G_Y>
int cyIcon = GetSystemMetrics(SM_CYICON); XWo=?(iA
CRect rect; {ZK"K+;h
GetClientRect(&rect); UH8)r
int x = (rect.Width() - cxIcon + 1) / 2; E|f&SEnzK
int y = (rect.Height() - cyIcon + 1) / 2; a8fLj
// Draw the icon 1zE_ SNx
dc.DrawIcon(x, y, m_hIcon); (0%0+vY
} ?&Y3Fr)%
else aOYRenqu
{ VK9I#
CDialog::OnPaint(); E|2klA^+*
} 'c#ZW|A
} w}Q|*!?_
&HKrmFgX{
HCURSOR CCaptureDlg::OnQueryDragIcon() xe)< )y
{ wzAp`Zs2Dm
return (HCURSOR) m_hIcon; 7S<Z&1(
} 7. y
L>
MmOGt!}9A
void CCaptureDlg::OnCancel() !Xt=+aKN
{ 38P_wf~\
if(bTray) p-U'5<n
DeleteIcon(); Xg#g`m%(M
CDialog::OnCancel(); ^=)? a;V
} ,wmPK;j
`m5cU*@D
void CCaptureDlg::OnAbout() 6ju+#]T
{ !:3NPjhf1Y
CAboutDlg dlg; BaIh,iu
dlg.DoModal(); ~Ra1Zc$o:
} ilv6A9/
Vxif0Bx&/d
void CCaptureDlg::OnBrowse() bHcb.;<
{ AR\1w'
CString str; fTM^:vkO
BROWSEINFO bi; LQYT/
char name[MAX_PATH]; }#@P+T:b
ZeroMemory(&bi,sizeof(BROWSEINFO)); /Ny/%[cu
bi.hwndOwner=GetSafeHwnd(); >u5}5OP7
bi.pszDisplayName=name; 6.tppAO+
bi.lpszTitle="Select folder"; 6USet`#
bi.ulFlags=BIF_RETURNONLYFSDIRS; BzH7E[R49
LPITEMIDLIST idl=SHBrowseForFolder(&bi); 9s)YPlDz
if(idl==NULL) UC*<]
return; 2vKnxK+ 5
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); >VqMSe_v
str.ReleaseBuffer(); <PkDfMx2
m_Path=str; )_EQU8D4ug
if(str.GetAt(str.GetLength()-1)!='\\') 1p,G8 v+B
m_Path+="\\"; |::kC3=
UpdateData(FALSE); (CYVSO
} 6m21Y8N
lfR"22t
void CCaptureDlg::SaveBmp() ?7:"D e
{ h Mw}[6m
CDC dc; nLkC-+$tM
dc.CreateDC("DISPLAY",NULL,NULL,NULL); D00rO4~6D%
CBitmap bm; =1n>vUW+J
int Width=GetSystemMetrics(SM_CXSCREEN);
3 Yl[J;i
int Height=GetSystemMetrics(SM_CYSCREEN); 9!V<=0b/
bm.CreateCompatibleBitmap(&dc,Width,Height); ]\P
CDC tdc; ?"AcK"v
tdc.CreateCompatibleDC(&dc); a(Z" }m
CBitmap*pOld=tdc.SelectObject(&bm); K@*m6)
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); 'rf='Y
tdc.SelectObject(pOld);
3uRnbO-
BITMAP btm; > ^3xBI:Q
bm.GetBitmap(&btm); cZL"e
DWORD size=btm.bmWidthBytes*btm.bmHeight; ik~hL/JD\
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); B7t#H?
BITMAPINFOHEADER bih; zEY
Ey1
bih.biBitCount=btm.bmBitsPixel; ' 7>}I{Lq
bih.biClrImportant=0; ~C=`yj
bih.biClrUsed=0; D]b5*_CT
bih.biCompression=0; 0*:]eM};P
bih.biHeight=btm.bmHeight; 1`_Mc ]
bih.biPlanes=1; f%*-PW^*
bih.biSize=sizeof(BITMAPINFOHEADER); O\OG~`HBN
bih.biSizeImage=size; )." zBc#
bih.biWidth=btm.bmWidth; ika{>hbH
bih.biXPelsPerMeter=0; >~J_9'gX6
bih.biYPelsPerMeter=0; 4)9X) Qx
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); SVXey?A;CJ
static int filecount=0; x#dJH9NR[
CString name; V6wYJ$]
name.Format("pict%04d.bmp",filecount++); $K<jmEC@<
name=m_Path+name; $yaE!.Kc
BITMAPFILEHEADER bfh; @c$mc
bfh.bfReserved1=bfh.bfReserved2=0; e5fJN)+a
bfh.bfType=((WORD)('M'<< 8)|'B'); !l6B_[!@
bfh.bfSize=54+size; >E"FoZM=
bfh.bfOffBits=54; |#5JI#,vX
CFile bf; uK(+WA
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ & PHHacp
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); E_?3<)l)RI
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); Q;r 0#"
bf.WriteHuge(lpData,size); 7F?^gMi
bf.Close(); ;
@Gm@d
nCount++; &$hfAG]"
} :CHCVoh@95
GlobalFreePtr(lpData); XNu2G19jb
if(nCount==1) @zfeCxVOA
m_Number.Format("%d picture captured.",nCount); R52q6y:<x
else r(vk2Qy
m_Number.Format("%d pictures captured.",nCount); |hp_X>Uv'
UpdateData(FALSE); O";r\Z
} j-
F=5)A
$BH0W{S
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) 0?,EteR
{ .M:,pw"S]
if(pMsg -> message == WM_KEYDOWN) *o"F.H{#N
{ +<
BAJWU
if(pMsg -> wParam == VK_ESCAPE) m}Tu^dy
return TRUE; D>*%zz|
if(pMsg -> wParam == VK_RETURN) 1ygu>sKS&A
return TRUE; vn}Vb+@R
} AW> P\>{RE
return CDialog::PreTranslateMessage(pMsg); NV9= ~cx
} C
UBcU
]iLfe&f
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) Iobo5B
{ @gX@mT"
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ wK#UFOp
SaveBmp(); 8n~@Rj5
return FALSE; ,5r 2!d
} D"1ciO8^I]
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ ]]%C\Ryy}
CMenu pop; 0TA/ExJ-LT
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); nsgNIE{>gO
CMenu*pMenu=pop.GetSubMenu(0); Vp5qul%
pMenu->SetDefaultItem(ID_EXITICON); I8^z\ef&
CPoint pt; j-{WPJa4\
GetCursorPos(&pt); T/S-}|fhQ
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); ,u]kZ ]
if(id==ID_EXITICON) J_P2% b=C
DeleteIcon(); 4TR:bQZs
else if(id==ID_EXIT) 6dq U4
OnCancel(); )sNtwSl^
return FALSE; 3wR5:O$H
} hDp'=}85@
LRESULT res= CDialog::WindowProc(message, wParam, lParam); ;oR-\;]/.
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) 5&