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:
.pUB.l$)
~{Iw[,MJ 一、实现方法
_C/|<Ot: 7@;*e=v 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
AhF@ 2O=$[b3 #pragma data_seg("shareddata")
SF:98#pg HHOOK hHook =NULL; //钩子句柄
}) -V,\ UINT nHookCount =0; //挂接的程序数目
ZwMVFC-d static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
=Q_1Mr4O static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
4P3RRS static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
L}*o8l` static int KeyCount =0;
utZI'5i static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
>`x|E-X" #pragma data_seg()
FSQB{9,H 2X2Ax~d@ 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。
s1 >8uW -t4:%-wv 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:
%HG+|)b daKZ*B| BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
-NwG'
U~ cKey,UCHAR cMask)
W]D YfR, {
b/UXO$_~- BOOL bAdded=FALSE;
B9"o Ru^} for(int index=0;index<MAX_KEY;index++){
;
pBLmm*F if(hCallWnd[index]==0){
uBww hCallWnd[index]=hWnd;
(sKg*G2 HotKey[index]=cKey;
7I[[S!((s HotKeyMask[index]=cMask;
<9pI~\@w bAdded=TRUE;
=cl#aS}e8 KeyCount++;
^`yhN break;
>k"O3Pc@ }
E^rBs2;9 }
6n2RT H return bAdded;
h/\v+xiF }
mHMsK}=~ //删除热键
q<E7qY+ BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
IMD^(k 2 {
M#^q
<K % BOOL bRemoved=FALSE;
tQzbYzGb7 for(int index=0;index<MAX_KEY;index++){
J8~hIy6] if(hCallWnd[index]==hWnd){
J0IKI,X. if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
8
siP hCallWnd[index]=NULL;
*I?-A(e HotKey[index]=0;
bnfeZR1m_ HotKeyMask[index]=0;
ZiR}S bRemoved=TRUE;
2tK~]0x KeyCount--;
.'M.yE~5J break;
@~2k5pa }
e Fs5l }
.K~V DUu }
w-WAgAch return bRemoved;
\)28,` }
^r}Uu~A> )q'dX+4=eL <IR@/b!, DLL中的钩子函数如下:
x%X3FbF] R~oY
R,L; LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
g[i;>XyP {
1R-0b{w[ BOOL bProcessed=FALSE;
MMa`}wSs if(HC_ACTION==nCode)
Lb$Uba-_ {
xqk(id\& if((lParam&0xc0000000)==0xc0000000){// 有键松开
umPnw switch(wParam)
ZOqA8#\ {
P:6K case VK_MENU:
tz65Tn_M MaskBits&=~ALTBIT;
fX9b1x break;
Qq{tX case VK_CONTROL:
im<!JMI MaskBits&=~CTRLBIT;
u@D5SkT break;
L'
_%zO case VK_SHIFT:
R5MN;xG^ MaskBits&=~SHIFTBIT;
G{.=27 break;
=:T"naY( default: //judge the key and send message
b^i$2$9_ break;
?}^ y6 }
gz'{l[ for(int index=0;index<MAX_KEY;index++){
s7E %Et if(hCallWnd[index]==NULL)
uF%N`e^S continue;
"nJMS6HJ[ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
fc:87ZR{K {
dG3?(}p+ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
Wsd_RT }ww bProcessed=TRUE;
jMWTNZ }
0* ^f
EoV }
s!09cS }
5Q}HLjG8Z else if((lParam&0xc000ffff)==1){ //有键按下
F9w2+z. switch(wParam)
.h
w(; {
WZA1nzRc case VK_MENU:
YedF% MaskBits|=ALTBIT;
Qmd2C&Xw break;
~Gg19x.#uW case VK_CONTROL:
j}h%,
7 MaskBits|=CTRLBIT;
pOy(XUV9O break;
mV7_O// case VK_SHIFT:
'bji2#z[ MaskBits|=SHIFTBIT;
/$8& r break;
D_f:D^ default: //judge the key and send message
>&Ye(3w& break;
kyB>]2 }
O> wGJ. for(int index=0;index<MAX_KEY;index++){
yh4% if(hCallWnd[index]==NULL)
tr
8Q{ continue;
q<g!bW% if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Mv%B#J {
[eF|2: SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
8r.MODZG/ bProcessed=TRUE;
huin?,eGz }
sGMnm }
j,_{f =3; }
v<} $d.&* if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
.}tpEvAw} for(int index=0;index<MAX_KEY;index++){
w/0;N`YB if(hCallWnd[index]==NULL)
k"`^vV[{F continue;
8/9YR(H3H if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
n*=Tm
KQ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
z\IZ5' //lParam的意义可看MSDN中WM_KEYDOWN部分
2IDn4<` }
BGT`) WP }
^6,}*@ }
}Oy/F return CallNextHookEx( hHook, nCode, wParam, lParam );
BI6`@}%7> }
$)O\i^T KU0;}GSNX} 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
o,
qBMo^. ubi6= BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
TP/bPZY BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
+Kg3qS" |VX0o2 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
QTI^?@+N> %aJ8wYj*
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
<C7/b#4>\ {
2Y9@[ if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
O%s?64^U {
`X wKCI //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
I#t#%!InH SaveBmp();
U| 1&=8l return FALSE;
}D#[yE,=\ }
Ru`7Xd. …… //其它处理及默认处理
T+<OlXpL }
[IuF0$w=dj {&Sr<d5 u!VY6y7p 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。
Os|F xXc3#n 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。
A&;Pt/#' bMF`KRP2 二、编程步骤
N%+ C5e< vJ!<7 l& 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|I&{ &l1CE19< 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
IDv|i.q3 `BZX\LPHm 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;
0- -0+? +LAj h)m 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;
Q" an6ht| _:,U$W 5、 添加代码,编译运行程序。
(&Z`P lvZ:Aw
r 三、程序代码
n*fsdo~ ZnYoh/ ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
ZYX(Cf #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
#AUz.WHD #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
E; Z1HF
R #if _MSC_VER > 1000
7Cj6Kw5k #pragma once
g{06d~Y #endif // _MSC_VER > 1000
86\B|! #ifndef __AFXWIN_H__
VWa;;?IK #error include 'stdafx.h' before including this file for PCH
G_a//[p #endif
?rgk #include "resource.h" // main symbols
/?P="j#u class CHookApp : public CWinApp
R+O[,UM^I~ {
wsNM'~( public:
*b0f)y3RV CHookApp();
HJu;4O($ // Overrides
v(tr:[V // ClassWizard generated virtual function overrides
0Bpix|mq //{{AFX_VIRTUAL(CHookApp)
_n+./B public:
;eeu 9_$ virtual BOOL InitInstance();
"Aq-H g virtual int ExitInstance();
e: //}}AFX_VIRTUAL
"~lGSWcU //{{AFX_MSG(CHookApp)
&t\KKsUtd // NOTE - the ClassWizard will add and remove member functions here.
|F 18j9 // DO NOT EDIT what you see in these blocks of generated code !
mmj6YQ0a //}}AFX_MSG
hD:$Sv/H DECLARE_MESSAGE_MAP()
T;%ceLD };
wz P")}[0 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
pPdOwK# BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
:!f1|h BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
"K8<X BOOL InitHotkey();
g2<xr;<t^ BOOL UnInit();
z;_d?S<*m #endif
@: s |X yU(k;A- //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
2ajQ*aNq #include "stdafx.h"
H[{ch t
h #include "hook.h"
F_$ K+6 #include <windowsx.h>
!.'@3-w] #ifdef _DEBUG
sGCV um} #define new DEBUG_NEW
VlVd"jW #undef THIS_FILE
@Ooh}V#J static char THIS_FILE[] = __FILE__;
;,y9 #endif
4V7{5:oa #define MAX_KEY 100
#n'tpp~O #define CTRLBIT 0x04
q
lL6wzq, #define ALTBIT 0x02
\7}X^]UV x #define SHIFTBIT 0x01
B=/*8,u #pragma data_seg("shareddata")
yS#LT3>l HHOOK hHook =NULL;
H!ZPP8]j> UINT nHookCount =0;
[;D4,@A static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
EV@xUq!x. static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
(s,*soAN static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
xcz1(R static int KeyCount =0;
R0M(e@H~ static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
$b#"Rv #pragma data_seg()
AG#5_0]P~ HINSTANCE hins;
pbivddi2 void VerifyWindow();
>Z?3dM~ [ BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
~PUz/^^
s //{{AFX_MSG_MAP(CHookApp)
\)ac,i@fy // NOTE - the ClassWizard will add and remove mapping macros here.
4
~17s`+ // DO NOT EDIT what you see in these blocks of generated code!
B_[^<2_ //}}AFX_MSG_MAP
V&DS+'P END_MESSAGE_MAP()
[KR`%fD0 .3,s4\.kT CHookApp::CHookApp()
~_SV`io {
x~}RL-Y2o // TODO: add construction code here,
N`/6
By // Place all significant initialization in InitInstance
nVoPTr }
lhx6+w ]OHzE]Q CHookApp theApp;
abtAkf LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
JLRw`V,o7 {
kzGD* BOOL bProcessed=FALSE;
<UG}P \N if(HC_ACTION==nCode)
b:>(U. {
R{3f5**0 if((lParam&0xc0000000)==0xc0000000){// Key up
'u$$scGt switch(wParam)
>(u =/pp=: {
:t]YPt case VK_MENU:
x9
<cT' MaskBits&=~ALTBIT;
k:<yy^g$X break;
TC3xrE:U<m case VK_CONTROL:
(hVhzw"~ MaskBits&=~CTRLBIT;
lx~!FLn break;
u
Y/Q]NT case VK_SHIFT:
'uBW1, MaskBits&=~SHIFTBIT;
]xA;*b;|h break;
xF5q=%n default: //judge the key and send message
T<DQi break;
qr(SAIX" }
ooByGQ90V: for(int index=0;index<MAX_KEY;index++){
U=p,drF,A if(hCallWnd[index]==NULL)
a>Uk<#>2?a continue;
) ]U-7 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Zo22se0) {
#Z}\;a{vZ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
(D{Fln\ bProcessed=TRUE;
qp_kILo~ }
7Rk eV }
veAGUE
%3 }
Ta%{Wa\U9z else if((lParam&0xc000ffff)==1){ //Key down
>tqLwC."' switch(wParam)
wnP#.[,V {
^$24231^ case VK_MENU:
"kz``6C MaskBits|=ALTBIT;
8,#v7ns}# break;
I2qC,Nkk case VK_CONTROL:
IBC
P6[ MaskBits|=CTRLBIT;
sE-E\+ break;
P6zy<w case VK_SHIFT:
r~z-l, MaskBits|=SHIFTBIT;
vN-#Ej.
u break;
y|nMCkuX default: //judge the key and send message
UC;_}> break;
s$:F^sxb }
x,STt{I= for(int index=0;index<MAX_KEY;index++)
UW<V(6P {
_LFZ 0 if(hCallWnd[index]==NULL)
+T+f``RcK continue;
jnYFA[Ab if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
^*
^te+N {
f:G Zb?Wyd SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
Ajr]&H4 bProcessed=TRUE;
M ZB0vdx }
H ZIJKk( }
5v=%pQbY }
m\__Fl if(!bProcessed){
T/V8&'^i for(int index=0;index<MAX_KEY;index++){
E#`=xg if(hCallWnd[index]==NULL)
07DpvhDQ continue;
@|6n.'f+ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
[bIdhG SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
;WC]Lf<Z^ }
!iWPldn&] }
E5UI }
PCH&eTKN return CallNextHookEx( hHook, nCode, wParam, lParam );
r;t0+aLc* }
d,CtlWp <- Q=h?D BOOL InitHotkey()
znw\Dn?g {
p3`'i if(hHook!=NULL){
[nJ),9$z_ nHookCount++;
I#zrz3WU return TRUE;
M%7{g"J* }
$*V:;-H else
`@b+'L hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
k)UF.=$d if(hHook!=NULL)
UJ1iXV[h" nHookCount++;
Yj|Oy return (hHook!=NULL);
B?'`\q)UL }
Wp`wIe6 BOOL UnInit()
4pq@o {
acz8
H0cS if(nHookCount>1){
,di'279| nHookCount--;
^6bU4bA return TRUE;
I$9^i#O'3 }
U+F?b\ BOOL unhooked = UnhookWindowsHookEx(hHook);
t8DySFT if(unhooked==TRUE){
iY1%"x nHookCount=0;
<UOx >=h hHook=NULL;
m!3b.2/h }
1P:r=Rt/ return unhooked;
JziuwL5, }
w$WN` = 1O>wXq7q BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
%Sr/'7 K {
v=zqj}T BOOL bAdded=FALSE;
;,![Lar5L for(int index=0;index<MAX_KEY;index++){
^I=c]D]); if(hCallWnd[index]==0){
hqIYo
.< hCallWnd[index]=hWnd;
^AkVmsv;; HotKey[index]=cKey;
Y u\<
HotKeyMask[index]=cMask;
k
#y4pF_ bAdded=TRUE;
YjN2 ,Xi KeyCount++;
WeNx9+2=Z break;
dqMt6b\} }
aT1T.3 a }
4bLk+EY4A return bAdded;
2A7g}V }
qP{S!Z( GO{o #} BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
YUU|!A8x {
.VG$`g" BOOL bRemoved=FALSE;
qR^KvAEQSo for(int index=0;index<MAX_KEY;index++){
!Z[dK{f" if(hCallWnd[index]==hWnd){
gpW3zDJ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
/HbxY hCallWnd[index]=NULL;
{j
i;~9'Q HotKey[index]=0;
T\ZWKx*# HotKeyMask[index]=0;
_i{$5JJ+K2 bRemoved=TRUE;
?tS=rqc8oW KeyCount--;
l*_%K}%?V break;
[lZo'o }
Tap=K|b ]
}
D-\WS^# }
,_;+H*H>" return bRemoved;
\?uaHX`1 }
vH/<!jtI PhF.\Wb void VerifyWindow()
!T;*F%G9 {
kXimJL_<g for(int i=0;i<MAX_KEY;i++){
V^fSrW] if(hCallWnd
!=NULL){ par|j]
if(!IsWindow(hCallWnd)){ ,FRFH8p
hCallWnd=NULL; )D\cm7WX^[
HotKey=0; 7 j$ |fS
HotKeyMask=0; <tkxE!xF`J
KeyCount--; k[lYdk
} 6v~` jS%3
} :K&>
} H.`>t
} &'`q&U1x
Z*
eb
BOOL CHookApp::InitInstance() bB^% O^:
{ RDU,yTHq
AFX_MANAGE_STATE(AfxGetStaticModuleState()); ^Q!qJav
hins=AfxGetInstanceHandle(); jR8~EI+
InitHotkey(); <SM{yMz
return CWinApp::InitInstance(); xbJ@ z{
} 0tbximmDb
ga0>J_
int CHookApp::ExitInstance() ,Q|[Yr
{ )o!y7MTl
VerifyWindow(); w?_y;&sbR
UnInit(); 6<0-GD}M
return CWinApp::ExitInstance(); v&g(6~b_>
} n{vp&
hKq <e%oVH
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file ;0*T7l
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) e ='bc7$
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ }`k >6B
#if _MSC_VER > 1000 ZUGuV@&-T
#pragma once jR~2mf!h*e
#endif // _MSC_VER > 1000 gM=oH
{2kw*^,l
class CCaptureDlg : public CDialog L \0nO i
{ ,EPs>#d
// Construction gs;3NW
public: ~d oOt
BOOL bTray; [s?H3yQ.
BOOL bRegistered; ow :}NI
BOOL RegisterHotkey(); B ;Zsp
UCHAR cKey; *O')
{(
UCHAR cMask; :UjHP}s
void DeleteIcon(); p)}iUU2N
void AddIcon(); I!bzvPJ]xc
UINT nCount; S<^*jheO5
void SaveBmp(); 51.! S
CCaptureDlg(CWnd* pParent = NULL); // standard constructor arf`%9M
// Dialog Data 5=CLR
//{{AFX_DATA(CCaptureDlg) i9}n\r0=c
enum { IDD = IDD_CAPTURE_DIALOG }; _2{i}L
CComboBox m_Key; +gb2>fei&
BOOL m_bControl; 4xLU15C
BOOL m_bAlt; 5A]IiX4Z
BOOL m_bShift; V^Wo%e7#u[
CString m_Path; S9X~<!]
CString m_Number; S3nA}1R
//}}AFX_DATA Nx4_Oc^hY
// ClassWizard generated virtual function overrides FY"!%)TV
//{{AFX_VIRTUAL(CCaptureDlg) Zab5"JR
public: \ ?['pB
virtual BOOL PreTranslateMessage(MSG* pMsg); (n7v $A
protected: k)\Yl`4au
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support |YjuaXd7N
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); qe!`LeT#
//}}AFX_VIRTUAL btb-MSkO
// Implementation >*%ySlZbs
protected: K1RTAFf /
HICON m_hIcon; w2y{3O"p=
// Generated message map functions qA:CV(Z
//{{AFX_MSG(CCaptureDlg)
rly3f
virtual BOOL OnInitDialog(); P(fTlrb
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); Vf6lu)Zc1
afx_msg void OnPaint(); 7]a6dMh
afx_msg HCURSOR OnQueryDragIcon(); %Bg}
a
virtual void OnCancel(); #9z\Wblr
afx_msg void OnAbout(); 6TS+z7S81L
afx_msg void OnBrowse(); h
&9Ld:p
afx_msg void OnChange(); }_}C ^
//}}AFX_MSG '7[{ISBXU
DECLARE_MESSAGE_MAP() w#k'RuOw5
}; Sj{z
#endif ]od]S8$5
5{qFKo"g@,
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file !I5_ln
#include "stdafx.h" 1R9hA7y&,/
#include "Capture.h" I"*g-ji0
#include "CaptureDlg.h" 1g{`1[.QO
#include <windowsx.h> ;hNnF&l
#pragma comment(lib,"hook.lib") %YefTk8cr,
#ifdef _DEBUG 2Xk(3J!!'a
#define new DEBUG_NEW l/;OC
#undef THIS_FILE ftsr-3!Vm
static char THIS_FILE[] = __FILE__; A:[La#h|p
#endif @m! ~![
#define IDM_SHELL WM_USER+1 ],R rk]1
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); G\tT wX4
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); ;^xlDN
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; \tLJ( <8
class CAboutDlg : public CDialog `7}6
{ orf21N+ [
public: x_{ua0BLDf
CAboutDlg(); 5gZ0a4
// Dialog Data g*\u8fpRq
//{{AFX_DATA(CAboutDlg) bG67TWY)
enum { IDD = IDD_ABOUTBOX }; ]"q[hF*PM
//}}AFX_DATA ;Avd$&::
// ClassWizard generated virtual function overrides {4ON2{8;4
//{{AFX_VIRTUAL(CAboutDlg) d6,%P6
protected: @^}
%
o-:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support zMt "ST.
//}}AFX_VIRTUAL fm87?RgXD
// Implementation F%bv
vw*(
protected: IPa08/
//{{AFX_MSG(CAboutDlg) W&}YMb
//}}AFX_MSG Hkg^
DECLARE_MESSAGE_MAP() xZPSoxu
}; DSYtj}>
r0l ud&_9
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) >>Hsx2M
{ QkZT%!7
//{{AFX_DATA_INIT(CAboutDlg) 4z Af|Je
//}}AFX_DATA_INIT )-|A|1Uo
} lF5;Kc
p9XHYf72
void CAboutDlg::DoDataExchange(CDataExchange* pDX) #nX0xV5=
{ #B"ki{Se*
CDialog::DoDataExchange(pDX); f(
hK>H
//{{AFX_DATA_MAP(CAboutDlg) Hs~M!eK
//}}AFX_DATA_MAP mJ<rzX
} ~ygiKsD6b
jpZX5_o
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 2V/A%
//{{AFX_MSG_MAP(CAboutDlg) *pw:oTO
// No message handlers f[.RAHjk
//}}AFX_MSG_MAP "w=p@/C
END_MESSAGE_MAP() +cheLc
I/jMe'Kp
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) TgJx%
: CDialog(CCaptureDlg::IDD, pParent) X|L.fB=
{ 6#7f^uIK
//{{AFX_DATA_INIT(CCaptureDlg) *'`ByS
m_bControl = FALSE; d"Y9go"Z
m_bAlt = FALSE; JVwYV5-O<0
m_bShift = FALSE; #l2wF>0
m_Path = _T("c:\\"); EyI
9$@4
m_Number = _T("0 picture captured."); x^8x z5:O
nCount=0; WTA0S}pT
bRegistered=FALSE; *W y0hnr;]
bTray=FALSE; VvSD&r^qI
//}}AFX_DATA_INIT g?A4C`l6iy
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 PkF
B.
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); ipjl[
} ^TVy:5Ag
@7 &rDZ
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) ?'P8H^K6u
{ 7~C@x+1S/
CDialog::DoDataExchange(pDX); yC
=5/wy`
//{{AFX_DATA_MAP(CCaptureDlg) ?qAX *j
DDX_Control(pDX, IDC_KEY, m_Key); j^llO1i/
DDX_Check(pDX, IDC_CONTROL, m_bControl); 37?%xQ!
DDX_Check(pDX, IDC_ALT, m_bAlt); gmLGK1
DDX_Check(pDX, IDC_SHIFT, m_bShift); uKo)iB6D
DDX_Text(pDX, IDC_PATH, m_Path); j +@1frp
DDX_Text(pDX, IDC_NUMBER, m_Number); ? =_l=dR
//}}AFX_DATA_MAP ^TVica
} 1{_tV^3@
<'v?WV_
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) #?}k0Y
//{{AFX_MSG_MAP(CCaptureDlg) <po.:c
Ce
ON_WM_SYSCOMMAND() SgAY/#
ON_WM_PAINT() ([_ls8
ON_WM_QUERYDRAGICON() {{ R/:-6?@
ON_BN_CLICKED(ID_ABOUT, OnAbout) %LXk9K^]e
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) c;Hf +n
ON_BN_CLICKED(ID_CHANGE, OnChange) f6PXcV
//}}AFX_MSG_MAP 7Nh6 `
END_MESSAGE_MAP() P}~6yX
&e7yX
BOOL CCaptureDlg::OnInitDialog() JiDX|Q<c
{ 6f?5/hq
CDialog::OnInitDialog(); B*zb0hdo:
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); 1jh^-d5
ASSERT(IDM_ABOUTBOX < 0xF000); {b<p~3%+Hc
CMenu* pSysMenu = GetSystemMenu(FALSE); Sl:Qq!
if (pSysMenu != NULL) n/pM[gI
{ Kk!D|NKLC
CString strAboutMenu; uWG'AmK_#E
strAboutMenu.LoadString(IDS_ABOUTBOX); 8{6KWqG\
if (!strAboutMenu.IsEmpty()) l4O}>#
{ ?WG9}R[qE/
pSysMenu->AppendMenu(MF_SEPARATOR); |5V#&e\ES
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); $A7[?Ai ?
} <&8cq@<
} ZJP.-` U
SetIcon(m_hIcon, TRUE); // Set big icon []1VD#
SetIcon(m_hIcon, FALSE); // Set small icon r1}OlVbK
m_Key.SetCurSel(0); -J:](p
RegisterHotkey(); xHJ+!
CMenu* pMenu=GetSystemMenu(FALSE); |w>"oaLN|Q
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); .m7iXd{
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); :?RooJ~#
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); d{9rEB?
return TRUE; // return TRUE unless you set the focus to a control \qUmdN{FU
} Y%^&aac Z
3iV/7~
O
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) CYEqH2"3
{ w]"Y1J(i
if ((nID & 0xFFF0) == IDM_ABOUTBOX) wI
#_r_
{ hNyYk(t^
CAboutDlg dlgAbout; d7It}7@9
dlgAbout.DoModal(); '|J-8"
} oE"!
else mf,mKgfG
{ pk}*0Y-
CDialog::OnSysCommand(nID, lParam); UB .FX
} T_[W=9
} }&y>g0$@
.2.$Rq
void CCaptureDlg::OnPaint() mmwwz
{ 9V.)=*0hp
if (IsIconic()) >f'nl
{ zST#X}
CPaintDC dc(this); // device context for painting @s/;y VVq
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); Rk"VFe>r
// Center icon in client rectangle '}P)iS2
int cxIcon = GetSystemMetrics(SM_CXICON); xPQO}wKa
int cyIcon = GetSystemMetrics(SM_CYICON); <rRmbFH#
CRect rect; -*e$>w[.N
GetClientRect(&rect); mrqCW]#u
int x = (rect.Width() - cxIcon + 1) / 2; ItYG9a
int y = (rect.Height() - cyIcon + 1) / 2; QMy;?,
// Draw the icon #T#&qo#
dc.DrawIcon(x, y, m_hIcon); bk2HAG
} s:*gjoL
else z+PSx'#}
{ Iy8gQdI
CDialog::OnPaint(); xb8fV*RO8A
} q,aWF5m@
} w][
;
L@CN0ezQs
HCURSOR CCaptureDlg::OnQueryDragIcon() lH:TE=|4
{ o$d; Y2K
return (HCURSOR) m_hIcon; "SLN8x49(
} cp0>Euco=
:Q+rEjw+
void CCaptureDlg::OnCancel() f@\
k_
{ 1_7x'5GdA
if(bTray) >9+@oGe(E
DeleteIcon(); FLEf(
CDialog::OnCancel(); *3S,XMS{O
} ppb]RN|)
FxM`$n~K
void CCaptureDlg::OnAbout() <%>Q$b5
{ ;lW0p8
CAboutDlg dlg; (W=z0Lqu
dlg.DoModal(); %?X~,
} iP|h] ;a+@
$o/?R]h
void CCaptureDlg::OnBrowse() pA(@gisg
{ N(t1?R/e,
CString str; m[ay
BROWSEINFO bi; W
qci51y>#
char name[MAX_PATH];
ReZ|q5*
ZeroMemory(&bi,sizeof(BROWSEINFO)); e{To&gy~
bi.hwndOwner=GetSafeHwnd(); ^:{l~~9iKp
bi.pszDisplayName=name; rm2{PV<+d
bi.lpszTitle="Select folder"; GG(rp]rgl
bi.ulFlags=BIF_RETURNONLYFSDIRS; h(GgkTj4+
LPITEMIDLIST idl=SHBrowseForFolder(&bi); $Jb+}mlT
if(idl==NULL) RBt"7 '
return; lG%oqxJ+ L
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); )3h=V^rm
str.ReleaseBuffer(); Uk|Xs~@#E
m_Path=str; {r[*}Bv
if(str.GetAt(str.GetLength()-1)!='\\') sKn>K/4JZ
m_Path+="\\"; ^4B6IF*
UpdateData(FALSE); :ozHuHJ#
} N+HN~'8r
C*kZ>mbc
void CCaptureDlg::SaveBmp() 9zi/z_G
{ f7d)
CDC dc; i1FFf[[ L
dc.CreateDC("DISPLAY",NULL,NULL,NULL); {< jLfL1
CBitmap bm; KkJcHU
int Width=GetSystemMetrics(SM_CXSCREEN); 5T8X2fS:
int Height=GetSystemMetrics(SM_CYSCREEN); KM< M^l_Q
bm.CreateCompatibleBitmap(&dc,Width,Height); ;&Eu<%y
CDC tdc; _V-@95fK
tdc.CreateCompatibleDC(&dc); !*C^gIQGU
CBitmap*pOld=tdc.SelectObject(&bm); 7lR(6ka&/
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); "o;l8$)VL
tdc.SelectObject(pOld); I*6L`#j[
BITMAP btm; h-lMrI)U?h
bm.GetBitmap(&btm); F4kU) i
DWORD size=btm.bmWidthBytes*btm.bmHeight; =Q3Go8b4HJ
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); I[tU}oj P
BITMAPINFOHEADER bih; wqA5GK>m2
bih.biBitCount=btm.bmBitsPixel; P*I\FV
bih.biClrImportant=0; [RC|W%<Z>
bih.biClrUsed=0; 5A~w_p*}
bih.biCompression=0; XRP/E_4
bih.biHeight=btm.bmHeight; x9-K}s]%
bih.biPlanes=1; 0 I;>du
bih.biSize=sizeof(BITMAPINFOHEADER); n9cWvy&f
bih.biSizeImage=size; Lm ,io\z
bih.biWidth=btm.bmWidth; LO#{
bih.biXPelsPerMeter=0; d 'x;]#S
bih.biYPelsPerMeter=0; L?Wl#wP\;*
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); 4zJ9bF4
static int filecount=0; iO<O2A.F
CString name; !l.Rv_o<O
name.Format("pict%04d.bmp",filecount++); m_\CK5T_
name=m_Path+name; 5>h2WL
BITMAPFILEHEADER bfh; h>bmHQ
bfh.bfReserved1=bfh.bfReserved2=0; >s[}f6*2@
bfh.bfType=((WORD)('M'<< 8)|'B'); Oo rH
bfh.bfSize=54+size; gj6"U{D
bfh.bfOffBits=54; Cv;z^8PZJz
CFile bf; mz9Kwxe
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ F^A1'J
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); b$rBxe\
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); O}#*U+j
bf.WriteHuge(lpData,size); ELY$ ]^T
bf.Close(); b*P\a
nCount++; Sq(=Bn6E
} [}P|OCW
GlobalFreePtr(lpData); {a%T <WW
if(nCount==1) #BT=
K
m_Number.Format("%d picture captured.",nCount); =YLt?5|e
else Fo~C,@/Qt
m_Number.Format("%d pictures captured.",nCount); b-~`A;pr
UpdateData(FALSE); c{FvMV2em
} LjxTRtB_
pC#Z]_k
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) f)"O( c
{ $JX_e
if(pMsg -> message == WM_KEYDOWN) J8/>b{Y
{ 4I {|M,+
if(pMsg -> wParam == VK_ESCAPE) Hej0l^
return TRUE; e^Jy-?E
if(pMsg -> wParam == VK_RETURN) ~j F5%Gu
return TRUE; (Ca\$p7/
} \% ^<Ll
return CDialog::PreTranslateMessage(pMsg); &w/aQs~
} #n~/~*:i92
d*q_DV
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) xA&