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:
^6tGj+D9
jy#'oadS? 一、实现方法
z)N8#Y~vn |9cJO@ 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:
}_m/3*x_ [;yEG$)K #pragma data_seg("shareddata")
rkOLTi[$ HHOOK hHook =NULL; //钩子句柄
1,q&A
RTS UINT nHookCount =0; //挂接的程序数目
jA9&hbQuL static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
ak]:ir`o static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
<yE
static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
x`/"1]Nf static int KeyCount =0;
:s|" ZR static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
|E)-9JSRy #pragma data_seg()
_Eo$V& R]hilb'a 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。
$2N)m:X0 uh#"4-v DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
}: v&Nc F"o
K*s BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
8wJfGY cKey,UCHAR cMask)
;G !JKg {
oqeA15k$ BOOL bAdded=FALSE;
%!Z9: +;B for(int index=0;index<MAX_KEY;index++){
{x$WBy9 if(hCallWnd[index]==0){
3gN#[P hCallWnd[index]=hWnd;
P:,@2el HotKey[index]=cKey;
^p3"_;p)h HotKeyMask[index]=cMask;
b7&5>Q/g bAdded=TRUE;
t@dv$W2
" KeyCount++;
(Q~ p"Ch break;
Hg<d%7. }
F2jZ3[P }
xx[XwN; return bAdded;
'*K}$+l }
"tax //删除热键
i#c1ZC BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
rt- ^?2c? {
mOm_a9ML BOOL bRemoved=FALSE;
ro:B[XE for(int index=0;index<MAX_KEY;index++){
M@\A_x(Mas if(hCallWnd[index]==hWnd){
j?a^fcXB if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
T \d-r#{ hCallWnd[index]=NULL;
a B(_ZX'L HotKey[index]=0;
90ZMO7_ HotKeyMask[index]=0;
P_Rh& gkuK bRemoved=TRUE;
O2z{>\ KeyCount--;
Z{<& 2* break;
IpX.ube }
y>4r<YZQ }
S3Q^K.e? }
`1;m:,9
return bRemoved;
3.[ fTrzJ }
=QG@{?JTl QnHb*4< 4KH8dau.fF DLL中的钩子函数如下:
.;),e# ']]Czze LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
r57CyO {
:zN{>,sC BOOL bProcessed=FALSE;
L;jzDng< if(HC_ACTION==nCode)
L-J 7z+{ {
wrtJ8O( if((lParam&0xc0000000)==0xc0000000){// 有键松开
9
GEMmo3 switch(wParam)
&~9'7 n! {
;/hR#>ib case VK_MENU:
e,*E`ol
MaskBits&=~ALTBIT;
k9]M=eO break;
X*4iNyIs_ case VK_CONTROL:
qIXo_H&\C MaskBits&=~CTRLBIT;
|AgdD break;
F?h{IH
f case VK_SHIFT:
:.2Tcq MaskBits&=~SHIFTBIT;
F ?APDGAN break;
..Q$q2. default: //judge the key and send message
)1E[CIaXK break;
'aj97b;lpG }
pK_n}QW for(int index=0;index<MAX_KEY;index++){
Q:nBx[% if(hCallWnd[index]==NULL)
0j@nOj(3 continue;
#ZzFAt if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
aHhr_.>X {
&
B
CA SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
kMJf!%L ( bProcessed=TRUE;
,Z_aZD4 }
YB;q5[ }
?o0ro?9j }
$_ &Lp\ else if((lParam&0xc000ffff)==1){ //有键按下
.k_>
BD]; switch(wParam)
Z{Si`GA {
U;PGBoe case VK_MENU:
[SJ-]P|^l MaskBits|=ALTBIT;
M{!Y break;
J #ukH`|- case VK_CONTROL:
9YMD[H\}V MaskBits|=CTRLBIT;
pv3SAO4 break;
/"Z6\T9 case VK_SHIFT:
__B`0t MaskBits|=SHIFTBIT;
Rix|LKk{ break;
2b&&3u8 default: //judge the key and send message
9n\b!*x break;
u;@~P }
s2IjZF { for(int index=0;index<MAX_KEY;index++){
dq6|m
}g{ if(hCallWnd[index]==NULL)
D]P_tJI continue;
7,^.h<@K if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
O6
:GE'S {
lMn1e6~K SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
h vC gd^M bProcessed=TRUE;
KR49Y>s< }
d9qA\ [ }
a;GuFnfn, }
VM.4w.})_E if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
q3_ceXYU for(int index=0;index<MAX_KEY;index++){
uT\|jv, if(hCallWnd[index]==NULL)
w#-J ?/m continue;
@.D1_A if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
_"4u?C# SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
d_ [l{ //lParam的意义可看MSDN中WM_KEYDOWN部分
f+WN=-F\ }
per$%;5E" }
k Q
Sx65 }
< 2mbR return CallNextHookEx( hHook, nCode, wParam, lParam );
K[j~htC{I" }
ktEdbALK @7}]\}SR 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:
[?QU'[ jV)4+D BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
yJ0q)x sS BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
J*%XtRio 8.Z9 i 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:
;z Qrree# o@5zf{- LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
btG+Ak+K* {
#?3oGrS Y if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
]cKxYX)J {
'{-7%>`bn //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
o*r
2T48 SaveBmp();
"/#=8_f return FALSE;
.)Wqo7/Gx }
.%x1%TN …… //其它处理及默认处理
W Z_yaG$U }
&{gD(QG l(B(gPvU ab@1JAgs 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
4.t72*ML R= co2 5 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
=N~*`5|rk \LEUreTn 二、编程步骤
g><*qd?t T {![a{ 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
';vLj1v _U<r@ 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
E3~ Wyfd7 ?D,8lABkT 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
|[3%^!f\ xNAa,aMM 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
K}feS(Ji x^959QO~ 5、 添加代码,编译运行程序。
^sP-6 ^ "<=HmE-; 三、程序代码
|jhu m\DI6O"u' ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
0!5w0^1 #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
Vx#n0z #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
UVUoXv)N #if _MSC_VER > 1000
,ozgnhZY #pragma once
jqJ't)N #endif // _MSC_VER > 1000
#Aver]eK #ifndef __AFXWIN_H__
H[e=^JuD #error include 'stdafx.h' before including this file for PCH
`^G?+p2E #endif
>OotgJnhC #include "resource.h" // main symbols
Z'cL"n\9R] class CHookApp : public CWinApp
K1oSoD8c {
Qw@_.I public:
u|Tg*B CHookApp();
ZR*Dl.GWY // Overrides
g~v>{F+u // ClassWizard generated virtual function overrides
,?KN;~t#vz //{{AFX_VIRTUAL(CHookApp)
+>BD^[^^ public:
MRb6O!$`C virtual BOOL InitInstance();
h3YWqSj virtual int ExitInstance();
?H0"*8C?Y //}}AFX_VIRTUAL
5bHS| < //{{AFX_MSG(CHookApp)
gY/p\kwsj // NOTE - the ClassWizard will add and remove member functions here.
H3Zsm)+: // DO NOT EDIT what you see in these blocks of generated code !
J};=)xLX; //}}AFX_MSG
;X}!;S%K DECLARE_MESSAGE_MAP()
p3W-*lE };
of<(4<T LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
lWRRB&8 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
F4|U\,g BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
U^~jB= =] BOOL InitHotkey();
sqE? U*8.- BOOL UnInit();
]N4?*S*jd) #endif
JIh:IR(ta RbN# dI' //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
9J(jbJ7p #include "stdafx.h"
Pq<]`9/w^w #include "hook.h"
)ePQN~#K} #include <windowsx.h>
lG/h[ #ifdef _DEBUG
d>-k-X-[ #define new DEBUG_NEW
0)HZ5^J #undef THIS_FILE
L^%jR= static char THIS_FILE[] = __FILE__;
NU/:jr.W# #endif
,5Nf9z!hk( #define MAX_KEY 100
P7|x=Ew;` #define CTRLBIT 0x04
T*bBw #define ALTBIT 0x02
T~G~M/ #define SHIFTBIT 0x01
tEl_a~s*3? #pragma data_seg("shareddata")
a`E1rK' HHOOK hHook =NULL;
=&-+{txs UINT nHookCount =0;
iRsK;)< static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
'^ob3N/Y [ static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
xL#UMvZ>;h static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
+/|t8z FWs static int KeyCount =0;
V'm4DR#M static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
Bf+7;4- #pragma data_seg()
svj0;x5 HINSTANCE hins;
u~7
,v void VerifyWindow();
~Kll. BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
) |Md"r_B //{{AFX_MSG_MAP(CHookApp)
=H)"t:xE // NOTE - the ClassWizard will add and remove mapping macros here.
X0&[cyP! // DO NOT EDIT what you see in these blocks of generated code!
t{g7 :A //}}AFX_MSG_MAP
fKQq]&~
H END_MESSAGE_MAP()
Q3P*&6wA >u/ T`$ CHookApp::CHookApp()
<x O"
E%t {
wu`P=- // TODO: add construction code here,
D\9-MXc1 // Place all significant initialization in InitInstance
E5`KUMZkq }
$9Pscu bM4 gzd)7np B2 CHookApp theApp;
ITr@;@}c] LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
TBr@F|RXiO {
'@3Kq\/ BOOL bProcessed=FALSE;
2nkUvb%= if(HC_ACTION==nCode)
4O1[D?)`x {
E(/M?>t- if((lParam&0xc0000000)==0xc0000000){// Key up
9TZ4ffXV* switch(wParam)
@q<F_'7is {
m|%ly case VK_MENU:
l/ :23\ MaskBits&=~ALTBIT;
/gUD!@ break;
T/Fj0' case VK_CONTROL:
;lU]ilYv MaskBits&=~CTRLBIT;
! 1wf/C;= break;
I]vCra case VK_SHIFT:
(n
{,R MaskBits&=~SHIFTBIT;
:o=a@Rqx break;
TW)~&;1l default: //judge the key and send message
j _p|>f<} break;
2PVtyV3; }
&vHfuM` for(int index=0;index<MAX_KEY;index++){
$CP_oEb if(hCallWnd[index]==NULL)
T(4OPiKu continue;
KXvBJA$ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
p6|RV(?8 {
p8_
CY[U SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
$#LR4 [Fq bProcessed=TRUE;
}n[<$*W^ }
k%2Rv4)hU }
2GW.'\D }
OHyBNJ else if((lParam&0xc000ffff)==1){ //Key down
^!yJ;'H\ switch(wParam)
Nub)]S>_/t {
bUS"1Tg]*6 case VK_MENU:
wN^$8m5\T^ MaskBits|=ALTBIT;
V+- ]txu| break;
,'z=cB`+o case VK_CONTROL:
eR*y<K(d MaskBits|=CTRLBIT;
Aat-938FP6 break;
b@
S. case VK_SHIFT:
Z`{ZV5 MaskBits|=SHIFTBIT;
G.y~*5?# break;
.!Qo+( default: //judge the key and send message
+#=l{_Z,ZJ break;
4 /Q4sE~< }
ed:[^#Lj for(int index=0;index<MAX_KEY;index++)
nQ}$jOU& {
>cYYr@S if(hCallWnd[index]==NULL)
qOi"3_ continue;
ocDAg<wo if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
]46#u=y~3 {
k<i#agq SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
LktH*ePO bProcessed=TRUE;
NpN-''B\ }
>2[nTfS }
%SJ2W>e }
@b5zHXF83E if(!bProcessed){
.M zAkZ= for(int index=0;index<MAX_KEY;index++){
Y24H`
s1u/ if(hCallWnd[index]==NULL)
OS7^S1r- continue;
E
whCX'Vaj if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
Lj#K^c Ee SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
/hksESiU }
_zF*S]9
X }
8 O% ?t }
w4%yCp[, return CallNextHookEx( hHook, nCode, wParam, lParam );
wOU\&u| }
fOtzbYVC JK_(!
BOOL InitHotkey()
qr|v|Ejd~ {
0oiz V;B5% if(hHook!=NULL){
1p }:K`#{ nHookCount++;
0kOl,%Ey return TRUE;
!,z==Qp|v }
N,F$^ q6 else
s%xhT hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
e_Un:r@) if(hHook!=NULL)
@?E|]H!S] nHookCount++;
|| 0n%"h>i return (hHook!=NULL);
<yw(7 }
K|^'`FpPO BOOL UnInit()
/@qnEP% {
5kbbeO|0G if(nHookCount>1){
W<sa6,$ nHookCount--;
(W'.vEl return TRUE;
iB0#Z_ }
M*n@djL$\~ BOOL unhooked = UnhookWindowsHookEx(hHook);
lU&[){ if(unhooked==TRUE){
#'lqE)T nHookCount=0;
@&fAR2 hHook=NULL;
?Q#yf8 }
roNRbA] return unhooked;
j,@@[{tu }
Ap)[;_9BD f9FEH7S68 BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Fh0cOp( {
waRK$/b
( BOOL bAdded=FALSE;
^P p2T for(int index=0;index<MAX_KEY;index++){
Z36C7 kw if(hCallWnd[index]==0){
7 S6@[-E hCallWnd[index]=hWnd;
&upM,Jsr* HotKey[index]=cKey;
c4i%9E+Af HotKeyMask[index]=cMask;
s.qo/o\b bAdded=TRUE;
W _JGJV.^f KeyCount++;
.`@)c/<0 break;
yuA+YZ }
TcEvUZJ" }
P|'eM% return bAdded;
yNc"E }
14Y<-OO:
k OJ!=xTU%h BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
sfKu7p uc {
(Xv'Te? BOOL bRemoved=FALSE;
4SDUTRoa for(int index=0;index<MAX_KEY;index++){
vA"MTncv if(hCallWnd[index]==hWnd){
_`- trE. if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
ckhU@C|=* hCallWnd[index]=NULL;
E8LA+dKN: HotKey[index]=0;
F(}~~EtPHo HotKeyMask[index]=0;
;:DDz bRemoved=TRUE;
QMAineO KeyCount--;
2/F";tc\' break;
i&_&4 }
TG^?J` }
B/F6WQdZ }
Q!*}^W return bRemoved;
|S0nR<x-M }
1~aP)q o4PJ9x5R! void VerifyWindow()
~4^~w#R {
=&~7Q" for(int i=0;i<MAX_KEY;i++){
9S_PZH if(hCallWnd
!=NULL){ vOQ
3A%/
if(!IsWindow(hCallWnd)){ 1=U NA :t<
hCallWnd=NULL; 68 \73L=
HotKey=0; hI>vz"J
HotKeyMask=0; DElrY)3O.
KeyCount--; Q/zlU@
} cN3!wE
} CyXFuk!R
} 'nRoa7v(
} 0 *^>/*
EJ@&vuDd$
BOOL CHookApp::InitInstance() J1UG},-h
{ -g\ ;B
AFX_MANAGE_STATE(AfxGetStaticModuleState()); s{9G//
hins=AfxGetInstanceHandle(); CR8szMa
InitHotkey(); eEl71
return CWinApp::InitInstance(); BL[N
} CFTw=b@
oT0TbZu%
int CHookApp::ExitInstance() Cno+rmsfT
{ 1Wr,E#+C
VerifyWindow(); Nbvs_>N
UnInit(); |w].*c}Z
return CWinApp::ExitInstance(); #T3dfVWv
} cKEDRX3
h"3Mj*s
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file N(Sc!rX
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) +oev NM
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ slTE.
#if _MSC_VER > 1000 q/#pol
#pragma once r\T'_wo
#endif // _MSC_VER > 1000 /nWBo l,
SUC'o"
class CCaptureDlg : public CDialog fvBL? x
{ f"RS,]
// Construction 4..M *U
public: N3(.7mxo
BOOL bTray; ORx6r=zg
BOOL bRegistered; qd<-{
BOOL RegisterHotkey(); Lvd es.0|
UCHAR cKey; cNl NJ
UCHAR cMask; L+.&e4f'oj
void DeleteIcon(); Lm3~< vP1e
void AddIcon(); ?Gqq]ozm
UINT nCount; SxI-pH'
void SaveBmp(); 8_Nyy/K#F
CCaptureDlg(CWnd* pParent = NULL); // standard constructor \"pp-str
// Dialog Data /Os6i&;
//{{AFX_DATA(CCaptureDlg) A9_}RJ9
enum { IDD = IDD_CAPTURE_DIALOG }; JnIE6@g<y
CComboBox m_Key; `n?Rxhkwp
BOOL m_bControl; z50P*
eS
BOOL m_bAlt; 2!Qg1hM
BOOL m_bShift; ^).
CString m_Path; iY*fp=c9
CString m_Number; Y*/e;mG.
//}}AFX_DATA 0,whTnH|
// ClassWizard generated virtual function overrides dym K @
//{{AFX_VIRTUAL(CCaptureDlg) }0V aZ<j
public: 4w5);x.
virtual BOOL PreTranslateMessage(MSG* pMsg); 4$+1&+@ ]
protected: `?G&w.Vs
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support ,GF]+nI89
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); $1 t
IC_
//}}AFX_VIRTUAL cq0-Dd9^&
// Implementation
*7o@HBbF
protected: xn=#4:f
HICON m_hIcon; ykYef
// Generated message map functions Z 4QL&?U
//{{AFX_MSG(CCaptureDlg) m6uFmU*<M}
virtual BOOL OnInitDialog(); [vqf hpz
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); Du #>y!
afx_msg void OnPaint(); c] -
afx_msg HCURSOR OnQueryDragIcon(); GL%)s?
virtual void OnCancel(); {T-=&%||
afx_msg void OnAbout(); hof>:Rk
afx_msg void OnBrowse(); ~)pso7^:
afx_msg void OnChange(); H<3:1*E
//}}AFX_MSG K0~=9/
DECLARE_MESSAGE_MAP() 3rBID
}; WjguM
#endif ,rV;T";r
}9kn;rb$g
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file iG#92e4
#include "stdafx.h" ,FwpHs $A
#include "Capture.h" fV2w &:^3
#include "CaptureDlg.h" Eh^gR`I
#include <windowsx.h> RN&6z"|jR
#pragma comment(lib,"hook.lib") pgQ^w0BQV
#ifdef _DEBUG ^5Zka!'X2Z
#define new DEBUG_NEW .'>d7
#undef THIS_FILE w75Ro6y
static char THIS_FILE[] = __FILE__; 10Q!-K),p
#endif uFA}w:Fm
#define IDM_SHELL WM_USER+1 >0_{80bdO
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); Oy b0t|do+
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); *j(UAVp
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; b;FaTm@
class CAboutDlg : public CDialog }@"v7X $
{ v"o_V|
public: `=S%!akj
CAboutDlg(); x2TE[#><
// Dialog Data |8tKN"QG
//{{AFX_DATA(CAboutDlg) =YIosmr
enum { IDD = IDD_ABOUTBOX }; YYL3a=;`a
//}}AFX_DATA W[sQ_Z1C
// ClassWizard generated virtual function overrides z%BX^b$Hj
//{{AFX_VIRTUAL(CAboutDlg) E@EP9X
>
protected: &c} 2[=
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support PjofW%7F
//}}AFX_VIRTUAL |qVM`,%L
// Implementation u{7->[=
protected: -oTdi0P
//{{AFX_MSG(CAboutDlg) p2U6B
//}}AFX_MSG "[-W(=
DECLARE_MESSAGE_MAP() n0G@BE1Y=
}; 4V;-*:
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CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) ~k%XW$cV
{ -BSO$'{7
//{{AFX_DATA_INIT(CAboutDlg) .K1wp G[4
//}}AFX_DATA_INIT 6q8PLyIp
} r9*6=*J|
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void CAboutDlg::DoDataExchange(CDataExchange* pDX) g6+5uvpd
{ nBLb1T
CDialog::DoDataExchange(pDX); Q~/=p>=uu
//{{AFX_DATA_MAP(CAboutDlg) 7nBX@Uo
//}}AFX_DATA_MAP -p%cw0*Y]C
} =v0w\(
?N
_Fn`G.r<
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) W7;RQ
//{{AFX_MSG_MAP(CAboutDlg) Al]*iw{
// No message handlers O \gVB!x
//}}AFX_MSG_MAP &-w. rF@
END_MESSAGE_MAP() ]q"y P0
.s?^y+e_
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) :sw@1
: CDialog(CCaptureDlg::IDD, pParent) z`eMb
{ GXk
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//{{AFX_DATA_INIT(CCaptureDlg) uH(M@7"6_!
m_bControl = FALSE; |Qb@.
m_bAlt = FALSE; xj9xUun
m_bShift = FALSE; *K&
$9fah
m_Path = _T("c:\\"); F(ZczwvR
m_Number = _T("0 picture captured."); %eh.@8GL`
nCount=0; ]826k pq_
bRegistered=FALSE; j<6+p
r
bTray=FALSE; GZHJ4|DK
//}}AFX_DATA_INIT u%6b|M@P
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 LM 1Vsh<
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); .;S1HOHz4
} cnRgzj<ek
bvHQ #:}H
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) bR1Q77<G\
{ 7F_N{avr
CDialog::DoDataExchange(pDX); m>3\1`ZF~<
//{{AFX_DATA_MAP(CCaptureDlg) o?cNH
DDX_Control(pDX, IDC_KEY, m_Key); vR>GE?s6
DDX_Check(pDX, IDC_CONTROL, m_bControl); lauq(aD_C
DDX_Check(pDX, IDC_ALT, m_bAlt); |DPq~l(d
DDX_Check(pDX, IDC_SHIFT, m_bShift); ms\\R@R
DDX_Text(pDX, IDC_PATH, m_Path); 6!USSipn
DDX_Text(pDX, IDC_NUMBER, m_Number); gzy|K%K
//}}AFX_DATA_MAP ]vPdj"7
} $pt~?ZZ3-
HIt9W]koO
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) o9yUJ@
:i
//{{AFX_MSG_MAP(CCaptureDlg) ~w9`l8/0
ON_WM_SYSCOMMAND() zD<8.AIGC
ON_WM_PAINT() a8G<x<
ON_WM_QUERYDRAGICON() AX'-}5T=
ON_BN_CLICKED(ID_ABOUT, OnAbout) L
" 'd(MD
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) X<pNc6
ON_BN_CLICKED(ID_CHANGE, OnChange) 5sj$XA?5
//}}AFX_MSG_MAP =;F7h
@:
END_MESSAGE_MAP() "!fwIEG
Ed{sC[j=
BOOL CCaptureDlg::OnInitDialog() Crl:v8
{ yjq|8.L[
G
CDialog::OnInitDialog(); 0LSJQ9\p
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); D #7q3s
ASSERT(IDM_ABOUTBOX < 0xF000); P2 qC[1hYH
CMenu* pSysMenu = GetSystemMenu(FALSE); *cCj*Zr]
if (pSysMenu != NULL) SSyARR+;c
{ sTep2W.9
CString strAboutMenu; 1)qD)E5&cf
strAboutMenu.LoadString(IDS_ABOUTBOX); }W(t>>
if (!strAboutMenu.IsEmpty()) .<xD'54
{ ?A24h!7
pSysMenu->AppendMenu(MF_SEPARATOR); F\GNLi
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
QAMcI:5
} 1_]%,
} TJ>1?W\Z
SetIcon(m_hIcon, TRUE); // Set big icon vA[7i*D{w
SetIcon(m_hIcon, FALSE); // Set small icon ,7DyTeMpN
m_Key.SetCurSel(0); 94]i|2qj*
RegisterHotkey(); U[OUIXUi
CMenu* pMenu=GetSystemMenu(FALSE); q}0I`$MU
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); B-"F67 :
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); +(z[8BJl
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); ,U+>Q!$`\^
return TRUE; // return TRUE unless you set the focus to a control 2- (}=N
} B@*!>R
:#{0yno)H
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) Iz;^D!
{ Q`Q"p
if ((nID & 0xFFF0) == IDM_ABOUTBOX) {*r!oD!'
{ T|j=,2_
CAboutDlg dlgAbout; Pj_DI)^
dlgAbout.DoModal(); f^F"e'1
} SQ]M"&\{y
else i70\`6*;B
{ L/%{,7l<^?
CDialog::OnSysCommand(nID, lParam); -^;,m=4{3
}
U z[#ye
} NR-<2
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B[
D
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void CCaptureDlg::OnPaint() #`l&HV
{ I3i zLi
if (IsIconic()) +"JWsD(C(
{ :f7vGO"t
CPaintDC dc(this); // device context for painting iP:^nt?
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); }w2Et
// Center icon in client rectangle D0MW~Y6{
int cxIcon = GetSystemMetrics(SM_CXICON); 3H4T*&9;n
int cyIcon = GetSystemMetrics(SM_CYICON); 0ia-D`^me
CRect rect; v6E5#pse8
GetClientRect(&rect); g:U
-kK!i
int x = (rect.Width() - cxIcon + 1) / 2; yS[HYq
int y = (rect.Height() - cyIcon + 1) / 2; /TIt-c
// Draw the icon t("koA=.
dc.DrawIcon(x, y, m_hIcon); '?fGI3b~/
} (v:8p!QN
else C7}iwklcsa
{ PI,2b(`h_
CDialog::OnPaint(); Ml{4)%~Y7f
} FFmXT/K"/j
} 'YYT1H)
N pQOLX/<?
HCURSOR CCaptureDlg::OnQueryDragIcon() 8]O#L}"
{ !L3|5:j
return (HCURSOR) m_hIcon;
bk i:u
} 9>vB,8
&Fjyi"8(r
void CCaptureDlg::OnCancel() /OMgj7olD
{ e eyZ$n
if(bTray) /[Rp~YzW
DeleteIcon(); gp
H@FX
CDialog::OnCancel(); Qv;b$by3
} 0AoWw-H6V
5LU7}v~/
void CCaptureDlg::OnAbout() sqjDh
{ h uR ^l
CAboutDlg dlg; U2~|AkL
dlg.DoModal(); w vI
v+Q9
} ed3wj3@
%\)AT"
void CCaptureDlg::OnBrowse() }g|9P SbJ
{ / T_v8{D
CString str; O`N,aYo
BROWSEINFO bi; EaH/Gg3
char name[MAX_PATH]; [D?d~pB
ZeroMemory(&bi,sizeof(BROWSEINFO));
J9y}rGO
bi.hwndOwner=GetSafeHwnd(); +bb-uoZf
bi.pszDisplayName=name; wqap~X
bi.lpszTitle="Select folder"; S@~ReRew2
bi.ulFlags=BIF_RETURNONLYFSDIRS; { ~(XO@;b
LPITEMIDLIST idl=SHBrowseForFolder(&bi); -rHqU|
if(idl==NULL) fZJM'+J@A
return; 77 Z:!J|
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); #T`1Z"h<
str.ReleaseBuffer(); _G/uDP%
m_Path=str; U^DR'X=
if(str.GetAt(str.GetLength()-1)!='\\') 4X}TG
m_Path+="\\"; YG*}F|1
UpdateData(FALSE); |S]fs9
} i3Xo6!Q
AP4s_X+=
void CCaptureDlg::SaveBmp() :`<MlX
{ T8W^qrx.v
CDC dc; 3RcnoXX_
dc.CreateDC("DISPLAY",NULL,NULL,NULL); Wg8*;dvtM
CBitmap bm; %N\8!aXnf
int Width=GetSystemMetrics(SM_CXSCREEN); ) :Px`] 5
int Height=GetSystemMetrics(SM_CYSCREEN); &XXr5ne~C
bm.CreateCompatibleBitmap(&dc,Width,Height); L&]{GNw
CDC tdc; Imyw-8/;
tdc.CreateCompatibleDC(&dc); 8|+@A1)&4
CBitmap*pOld=tdc.SelectObject(&bm); tn(6T^u
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); lYr4gFOs
tdc.SelectObject(pOld); e"p){)*$
BITMAP btm; ec*Ni|`Z'
bm.GetBitmap(&btm); t~qAA\p}o
DWORD size=btm.bmWidthBytes*btm.bmHeight; [<Mls@?
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); 1$:O9{F
BITMAPINFOHEADER bih; <Skf
n`).
bih.biBitCount=btm.bmBitsPixel; 55,2eg#{O
bih.biClrImportant=0; GW7+#
bih.biClrUsed=0; X]\; f
bih.biCompression=0; E%Ko[G
bih.biHeight=btm.bmHeight; fj9&J[
bih.biPlanes=1; bz [?M}
bih.biSize=sizeof(BITMAPINFOHEADER); BgB0
bih.biSizeImage=size; 0fV}n:4Pq
bih.biWidth=btm.bmWidth; ?f!&M
bih.biXPelsPerMeter=0; e. E$Ej]w
bih.biYPelsPerMeter=0; zcio\P=^|B
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); 3J3wKw!`
static int filecount=0; 5B3sRF}
CString name; ^.*zBrFx
name.Format("pict%04d.bmp",filecount++); 8hSw4S"$
name=m_Path+name; 7x*C`
Et<x
BITMAPFILEHEADER bfh; p`!<yq2_
bfh.bfReserved1=bfh.bfReserved2=0; nS Vr,wU
bfh.bfType=((WORD)('M'<< 8)|'B'); 4ZYywD wn
bfh.bfSize=54+size; 64^3ve3/a=
bfh.bfOffBits=54; 3b`#)y^y?%
CFile bf; i@%a!].I
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ 6!=q+sw/X
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); |F qujZz
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER));
?dk)2
bf.WriteHuge(lpData,size); |ss4pN0X
bf.Close(); k[*> nE
nCount++; 9w1`_r[J
} kp6 &e
GlobalFreePtr(lpData); i|S/g.r
if(nCount==1) $2Bll 5!]
m_Number.Format("%d picture captured.",nCount); "od2i\
else =t|,6Vp
m_Number.Format("%d pictures captured.",nCount); 7dR]$~+*e
UpdateData(FALSE); '
wp _U/
} "wxyY^"
H5CL0#I
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) H#T&