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:
I,'k>@w{s
0,8okAH 一、实现方法
13=.H5 @jlw_ob2g 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:
B !=F2
4I?^ t" #pragma data_seg("shareddata")
1~QPG\cdIX HHOOK hHook =NULL; //钩子句柄
CC^'@~)? UINT nHookCount =0; //挂接的程序数目
;{o|9x| static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
'!a'ZjYyi static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
~**.|%Kc static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
M+9 gL3W static int KeyCount =0;
aCLq k' static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
{s{j~M #pragma data_seg()
fe#\TNeQJ[ <nK?L cP 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。
}<y7bqA v2;`f+ 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:
3gj+%%!G\ VgC2+APg BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
y
{<9]' cKey,UCHAR cMask)
1\rz%E {
3J438M.ka BOOL bAdded=FALSE;
3fJc
9| for(int index=0;index<MAX_KEY;index++){
}:*]aL<7_ if(hCallWnd[index]==0){
}t1a*z hCallWnd[index]=hWnd;
SrK<fAkx HotKey[index]=cKey;
fCobzDy
HotKeyMask[index]=cMask;
x`IEU*z# bAdded=TRUE;
-701j'q{ KeyCount++;
&7wd?)s break;
4J([6< }
pDCeQ6? }
KX7>^Bt&k return bAdded;
6,9>g0y'NG }
;<2G //删除热键
xDoC( BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
JOLaP@IPT {
cFnDmtI: BOOL bRemoved=FALSE;
l.bYE/F0& for(int index=0;index<MAX_KEY;index++){
pWsDzb6?% if(hCallWnd[index]==hWnd){
fG(SNNl+D if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
TNh1hhJ$b hCallWnd[index]=NULL;
#PQB(=299P HotKey[index]=0;
BC<^a )D= HotKeyMask[index]=0;
K8.!_
c bRemoved=TRUE;
_ T):G6C8 KeyCount--;
-rli(RR)| break;
SHo$9+ }
/&+tf* }
;^I*J:] }
$.rhRKs return bRemoved;
RnI&8 }
xJ)n4) z(^]J`+\ )i^<r ;_z DLL中的钩子函数如下:
vv+z'(l QR0Q{}wbqU LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
"#oHYz3D {
zZ323pq BOOL bProcessed=FALSE;
YCM]VDx4u1 if(HC_ACTION==nCode)
#c?j\Y9nz {
+sUFv)!4 if((lParam&0xc0000000)==0xc0000000){// 有键松开
#"\gLr_:m switch(wParam)
,+{LYF {
Pjjewy1}^ case VK_MENU:
i,4>0o? MaskBits&=~ALTBIT;
lun\`f 5Q break;
M={V|H0 case VK_CONTROL:
>P@H#= MaskBits&=~CTRLBIT;
\EtQ5T*u break;
a^zibPG case VK_SHIFT:
c%G{#}^2 MaskBits&=~SHIFTBIT;
/M4{Wc break;
T
iiW p!mX default: //judge the key and send message
H>B&|BO_[ break;
{Um)15K }
wlk4*4dKn for(int index=0;index<MAX_KEY;index++){
L(-b@Joh if(hCallWnd[index]==NULL)
_JE"{ ; continue;
b@f$nS
B if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
'*w00 {
CtAwBQO SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
u5: q$P bProcessed=TRUE;
r^paD2&} }
~%=MpQ3 }
5r8<7g:>C }
q~ZNd3O else if((lParam&0xc000ffff)==1){ //有键按下
78# v switch(wParam)
R$TB1w9] {
QpA/SmJ case VK_MENU:
71gT.E MaskBits|=ALTBIT;
E!l!OtFL break;
^o1*a&~J@ case VK_CONTROL:
@u]rWVy;\[ MaskBits|=CTRLBIT;
\$e)*9) break;
Xudg2t)+K case VK_SHIFT:
_p&]|~a MaskBits|=SHIFTBIT;
1Z~)RJ<D break;
~r`9+b[9{ default: //judge the key and send message
iS Gq!D break;
SB|Qa}62 }
'~&X wZ& for(int index=0;index<MAX_KEY;index++){
DSk/q-'u if(hCallWnd[index]==NULL)
;y\IqiA{o continue;
(Dl$k Gn if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
W$OG(m!W> {
au=o6WRa SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
_Khc3Jo bProcessed=TRUE;
~ZEmULKkR }
dA0.v+Foz" }
J)~L }
_:C9{aEZb if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
0#&5.Gr) for(int index=0;index<MAX_KEY;index++){
]0)|7TV* if(hCallWnd[index]==NULL)
xScLVt<\e continue;
PuT@}tw if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
lq&wXi SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
L>%o[tS //lParam的意义可看MSDN中WM_KEYDOWN部分
O#k6' LN? }
S=nzw-(I }
MIoEauf }
I`LuRlw
return CallNextHookEx( hHook, nCode, wParam, lParam );
$!(pF }
Jjv=u M|qteo 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
H{k^S\K *
%M3PTY\ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
(?{MEwHG BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
Q[I=T& RUT,Y4 b 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
FPI;Jx6W' ^[XYFQ TL LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
#Av.iAs {
;@Z#b8aM} if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
(B_\TdQ {
"xHg qgFyO //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
OJzs Q SaveBmp();
.!,z:l$Kh return FALSE;
(egzH? }
D'A/wG …… //其它处理及默认处理
!@'6)/ }
oMTf"0EIW JJ'.(( *B{j.{
p( 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。
C
#6dC0 dJ""XaHqf 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。
[YT>*BH ? c 8>hcV 二、编程步骤
S9`flo uVDa^+= 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";
mB9r3[ }S$@ Ez6 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
UE ,t8j x{c/$+Z[ 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;
<l9-;2L4 !\L/[:n 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;
+g]yA3 ugx%_x6 5、 添加代码,编译运行程序。
fUQ6Z,9 ?Poq2 三、程序代码
ehG/zVgn Ve!fU ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
D{d>5P?W #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
HnCzbt@ #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
m"jV}@agX #if _MSC_VER > 1000
)
^3avRsC #pragma once
p4i]7o@ #endif // _MSC_VER > 1000
16i"Yg!* #ifndef __AFXWIN_H__
J8)#PY[i4 #error include 'stdafx.h' before including this file for PCH
P7MeX(Tay #endif
V6#K2 #include "resource.h" // main symbols
S'B|>!z@ class CHookApp : public CWinApp
Xo*%/0q' {
dwd:6.J( public:
P*Tx14xe4 CHookApp();
7C2&NyWJ // Overrides
CL}{mEr} // ClassWizard generated virtual function overrides
(B-43!C //{{AFX_VIRTUAL(CHookApp)
`8>Py~ public:
9*=W- v virtual BOOL InitInstance();
e|D;OM virtual int ExitInstance();
mL`5 uf //}}AFX_VIRTUAL
Eb>78k(3I) //{{AFX_MSG(CHookApp)
(S`2[.j // NOTE - the ClassWizard will add and remove member functions here.
mzc
4/<th // DO NOT EDIT what you see in these blocks of generated code !
`o?Ph&p} //}}AFX_MSG
1=a>f"cyf DECLARE_MESSAGE_MAP()
+_xOLiu
};
Yx inE`u~ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
F]t(%{#W BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
L%c0 Z@[~ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
b2=0}~LK BOOL InitHotkey();
*"r~-&IL BOOL UnInit();
o9S+6@ #endif
Kmv+1T0, S&Ee,((E( //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
d)R352 #include "stdafx.h"
/?1nHBYPM #include "hook.h"
dwv 6;x #include <windowsx.h>
qTo-pAG` #ifdef _DEBUG
fH?ha #define new DEBUG_NEW
-"[<ek #undef THIS_FILE
]a3iEA2 ( static char THIS_FILE[] = __FILE__;
3y~r72J #endif
t
6^l `6:p #define MAX_KEY 100
[j:[ #define CTRLBIT 0x04
F0UVo #define ALTBIT 0x02
aCxE5$~$ #define SHIFTBIT 0x01
(V% `k'N7f #pragma data_seg("shareddata")
FSbHn{@ HHOOK hHook =NULL;
pdEiqLhH UINT nHookCount =0;
_ _>.,gL7 static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
W|,V50K static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
V$rlA'+1v static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
.*JA!B static int KeyCount =0;
eBO@7F$ static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
~E^,=4 #pragma data_seg()
U"4?9.
k HINSTANCE hins;
!'*csg void VerifyWindow();
~|AwN [ BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
r]Ff{la5 //{{AFX_MSG_MAP(CHookApp)
@hImk`&[N // NOTE - the ClassWizard will add and remove mapping macros here.
#vqo -y7@ // DO NOT EDIT what you see in these blocks of generated code!
([VV%ovZ
//}}AFX_MSG_MAP
lM[XS4/TRa END_MESSAGE_MAP()
b4""|P?L q;wLa#4)J CHookApp::CHookApp()
"A)(" {
xN@Pz)yo // TODO: add construction code here,
R1W}dRE} // Place all significant initialization in InitInstance
oejfU;+$ }
M}wXJ8aF? 5 VA(tzmCt CHookApp theApp;
q0bHB_|wL LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
:aIN9; {
%D`,k*X BOOL bProcessed=FALSE;
\rV
B5|D? if(HC_ACTION==nCode)
D*Q.G8( {
5I@w~z if((lParam&0xc0000000)==0xc0000000){// Key up
6k/U3&R switch(wParam)
U70]!EaT {
PSmfiaThwo case VK_MENU:
0G2g4DSKD MaskBits&=~ALTBIT;
Zf>^4_x3P break;
(?b@b[D~4 case VK_CONTROL:
A;u" <KG? MaskBits&=~CTRLBIT;
5]1h8PW!Y break;
pBC<u case VK_SHIFT:
{A o,t+j MaskBits&=~SHIFTBIT;
9lo[&^< break;
'snYu!`z
default: //judge the key and send message
iYbX break;
cubk]~VD }
n!E2_ for(int index=0;index<MAX_KEY;index++){
T=YzJyQC) if(hCallWnd[index]==NULL)
**[Z^$)u(
continue;
X{-9FDW if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
9OfFM9(: {
=[<m[.)i SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
g+C!kaC) bProcessed=TRUE;
S?0)1O }
<vbIp& }
%AnW~v }
l~Lb!; ,dN else if((lParam&0xc000ffff)==1){ //Key down
)2E%b+" switch(wParam)
7a$G@ {
b( ^^m:(w case VK_MENU:
swc@34ei\ MaskBits|=ALTBIT;
oAZh~~tp break;
te4= S
case VK_CONTROL:
VRW]a MaskBits|=CTRLBIT;
AP\ofLmq break;
v1.q$ f^( case VK_SHIFT:
Us~ X9n_F MaskBits|=SHIFTBIT;
!z
zW2> break;
qYp$fmj default: //judge the key and send message
efuK break;
8 )\M:s~7& }
qOG}[%<^n7 for(int index=0;index<MAX_KEY;index++)
2PSTGG8JV {
7>
Pgc if(hCallWnd[index]==NULL)
hD<f3_k continue;
XL}<1-} if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
L6i|:D32p {
%E27.$E_ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
~-F?Mc bProcessed=TRUE;
6bZ[Kt }
#rYENR[ }
y$tX-9U }
4o9$bv if(!bProcessed){
Jll-X\O`- for(int index=0;index<MAX_KEY;index++){
O hR1Jaed if(hCallWnd[index]==NULL)
;</Twm;: continue;
tO.$+4a if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
"L2 m-e6 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
X^@[G8v% }
\T-~JQVj }
|[cdri^?D }
c!uW}U_z return CallNextHookEx( hHook, nCode, wParam, lParam );
|&hU=J
o }
i!MwBYk y?N Nz0 BOOL InitHotkey()
77:'I {
Eo{EKI1 if(hHook!=NULL){
=V^@%YIn nHookCount++;
MPRO
!45Z return TRUE;
a`Z{
xme= }
iY.eJlfH else
[l[{6ZXt hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
Ud3""C5B if(hHook!=NULL)
@%@zH%b nHookCount++;
3DoRE2} return (hHook!=NULL);
BQjam+u6 }
t^@T`2jL
BOOL UnInit()
=wA5P@ {
mpef]9 if(nHookCount>1){
d]M[C[TOX nHookCount--;
*e<_; Kr? return TRUE;
;1LG&h,K }
AQci,j" BOOL unhooked = UnhookWindowsHookEx(hHook);
!O\X+#j if(unhooked==TRUE){
w4:<fnOM nHookCount=0;
6D9o08 hHook=NULL;
kQ }s/* }
cjg=nTsBA return unhooked;
d1NE% hg3 }
9oq)X[ BQ#jwu0e BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
{Nq?#%vdT {
oO:LG%q BOOL bAdded=FALSE;
$'$>UFR for(int index=0;index<MAX_KEY;index++){
caD5Pod4 if(hCallWnd[index]==0){
~.Q4c*_b hCallWnd[index]=hWnd;
n|]N7 b' HotKey[index]=cKey;
MxN]7 HotKeyMask[index]=cMask;
Cj$H[K}> bAdded=TRUE;
FT_k^CC KeyCount++;
R`C.ha break;
NS5 49S }
eG^z*`** }
:bw6 k return bAdded;
Th+|*=Il }
&enlAV'#)O 0|Q.U BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
nCB[4 {
#wD7 \X-f BOOL bRemoved=FALSE;
u~)%tL for(int index=0;index<MAX_KEY;index++){
U$EM.ot if(hCallWnd[index]==hWnd){
t;XS;b% if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
dp< auA hCallWnd[index]=NULL;
T]X{@_
HotKey[index]=0;
6)+9G_ HotKeyMask[index]=0;
wL'C1Vr bRemoved=TRUE;
Fi k@hu KeyCount--;
|3|wdzV break;
:28@J?jjO }
T/5nu?v }
/W``LK>;? }
ty9rH=1 return bRemoved;
Z#@6#S` }
Bx%=EN5. 0c-QIr}m void VerifyWindow()
C*]AL/ {
n\
Gg6Y for(int i=0;i<MAX_KEY;i++){
eFes+i( 35 if(hCallWnd
!=NULL){ !~tnti6
if(!IsWindow(hCallWnd)){ YN`UTi\s
hCallWnd=NULL; |H<|{{E
HotKey=0; *\C}Ok=
HotKeyMask=0; Xv]*;Bq:SK
KeyCount--; <f[9j u
} TR|;,A[%v#
} ZG!x$yi$
} R$v i!0
} _=)!xnYf
-D$3!ccX
BOOL CHookApp::InitInstance() F1/6&u9I
{ 4g S[D
AFX_MANAGE_STATE(AfxGetStaticModuleState()); 7!mJhgGc
hins=AfxGetInstanceHandle(); 9c:5t'Qt5.
InitHotkey(); cy9N:MR(c
return CWinApp::InitInstance(); cyDiA(ot&
} Bac?'ypm
_RgxKp/d
int CHookApp::ExitInstance() `$f\ %
{ %d ZM9I0
VerifyWindow(); O&F<oM
UnInit(); nO-d"S*
return CWinApp::ExitInstance(); 2}GKHC
} G)jG!`I
a_xQ~:H
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file d!w1t=2H
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) 0%#t[usY
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ {kT#o3,>w6
#if _MSC_VER > 1000 pFS
F[9?e>
#pragma once $/MY,:*e
#endif // _MSC_VER > 1000 T27:"LVw
4b]IazL)
class CCaptureDlg : public CDialog 9F/|`
{ 'et(:}i
// Construction q`h7H][(A
public: ryz/rf
BOOL bTray; ]cS&8{ ^2
BOOL bRegistered; IQo]9Lx
BOOL RegisterHotkey(); !2/l9SUi
UCHAR cKey; 1w(<0Be
UCHAR cMask; [))gn
void DeleteIcon(); Qu!OV]Cc
void AddIcon(); /IrKpmbq
UINT nCount; 9Kq<\"7Bmz
void SaveBmp(); =mDy@%yx!
CCaptureDlg(CWnd* pParent = NULL); // standard constructor kOo>Iy
// Dialog Data E
`?S!*jm
//{{AFX_DATA(CCaptureDlg) =]8f"wAh*
enum { IDD = IDD_CAPTURE_DIALOG }; n5/ZJur
CComboBox m_Key; 7
3H@kf
BOOL m_bControl; C!CaGf=
BOOL m_bAlt; ke{DFqh
BOOL m_bShift; qb#V)
CString m_Path; d@_'P`%-
CString m_Number; nhB^Xr=
//}}AFX_DATA $Ui]hA-:?y
// ClassWizard generated virtual function overrides BBaHMsr
//{{AFX_VIRTUAL(CCaptureDlg) .D>A'r8U
public: +H5 jRw
virtual BOOL PreTranslateMessage(MSG* pMsg); nS?S6G5h
protected: UHTb61Gs
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support C?_t8G./_
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); LR
8e|H0
//}}AFX_VIRTUAL 3hp
tP
// Implementation gDUoc*+h
protected: o(S^1j5
HICON m_hIcon; rd f85%%7
// Generated message map functions _rWTw+
L
//{{AFX_MSG(CCaptureDlg) AmUe0CQ:k'
virtual BOOL OnInitDialog(); 8trm`?>
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); \oD=X}UQw(
afx_msg void OnPaint(); #,Fx@3y\a
afx_msg HCURSOR OnQueryDragIcon(); 7~Xu71^3s
virtual void OnCancel(); see'!CjVo2
afx_msg void OnAbout(); _&8KB1~
afx_msg void OnBrowse(); )^QG-IM
afx_msg void OnChange(); F~11 _
//}}AFX_MSG HzFt
DECLARE_MESSAGE_MAP() m-&a~l
}; (RI>aDGRH
#endif Lt#:R\;&
Bk@_]a
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file P^o"PKA
#include "stdafx.h" j:\_*f
#include "Capture.h" =qVAvo'
#include "CaptureDlg.h" KJ05Zx~uma
#include <windowsx.h> A=l?IC@O
#pragma comment(lib,"hook.lib") AH ?MJKY@Z
#ifdef _DEBUG ^O,6(@>
#define new DEBUG_NEW xq#]n^
#undef THIS_FILE )2*|WHO
static char THIS_FILE[] = __FILE__;
.*clY
#endif 42H#n]Y
#define IDM_SHELL WM_USER+1 -qr:c9\px
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); >u%[J!Y;;
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); eN7yjd'Y6
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; PT=2LZ
class CAboutDlg : public CDialog !Dhfr{
{ eQ4B5B%j/x
public: ek_i{'hFd
CAboutDlg(); d,E/9y\e
// Dialog Data kB!M[[t
//{{AFX_DATA(CAboutDlg) aNh1e^j
enum { IDD = IDD_ABOUTBOX }; *jqPKK/
//}}AFX_DATA '! 2
// ClassWizard generated virtual function overrides 'j=PbA
//{{AFX_VIRTUAL(CAboutDlg) yp7,^l
protected: Phjf$\pt
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support [eTck73
//}}AFX_VIRTUAL p-ii($~}
// Implementation v6,
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protected: o2t@-dNi
//{{AFX_MSG(CAboutDlg) kK_>*iCMo
//}}AFX_MSG 5juCeG+Z
DECLARE_MESSAGE_MAP() 8~XI7g'5x
}; {pi67"mYp
9/^Bj
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) ;L/T}!Dx
{ /E1c#@
//{{AFX_DATA_INIT(CAboutDlg) pRyS8'
//}}AFX_DATA_INIT ::h02,y;1%
} =,1zl}PR
}j5@\c48
void CAboutDlg::DoDataExchange(CDataExchange* pDX) 7dL=E"WL
{ p>hCh5
CDialog::DoDataExchange(pDX); :X'U`jE
//{{AFX_DATA_MAP(CAboutDlg) e?'k[ES^
//}}AFX_DATA_MAP .LVOaxT
} -2mOgv
F$pd]F!#
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) " kJWWR
//{{AFX_MSG_MAP(CAboutDlg) `5aypJf1
// No message handlers eWt>^]H~
//}}AFX_MSG_MAP ~O3uje_
END_MESSAGE_MAP() _J$p<
"{1}
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) ^IegR>
: CDialog(CCaptureDlg::IDD, pParent) c`[uQXv
{ ;Z<*.f'^fc
//{{AFX_DATA_INIT(CCaptureDlg) {b8 Y-
m_bControl = FALSE; QRc=-Wu_(
m_bAlt = FALSE; 3t}o0Ai9
m_bShift = FALSE; >w2WyYJYH
m_Path = _T("c:\\"); AhFI, x
m_Number = _T("0 picture captured."); X2mm'JDwK
nCount=0; .J!
$,O@
bRegistered=FALSE; Q $,kB<M
bTray=FALSE; [/`Hz]R
//}}AFX_DATA_INIT 4)S?Y"Bs
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 x>/@Z6Wxz
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); nJ`a1L{N
} V,%5
hl'&
%)@(Tye -
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) 7]+'%Uwu)
{ t~=@r9`S
CDialog::DoDataExchange(pDX); p[+me o
//{{AFX_DATA_MAP(CCaptureDlg) LFry?HO,D
DDX_Control(pDX, IDC_KEY, m_Key); Rhxm)5 +
DDX_Check(pDX, IDC_CONTROL, m_bControl); YSUH*i/%
DDX_Check(pDX, IDC_ALT, m_bAlt); pzp"NKxi
DDX_Check(pDX, IDC_SHIFT, m_bShift); J##X5'a3*
DDX_Text(pDX, IDC_PATH, m_Path); C=f(NpyD6
DDX_Text(pDX, IDC_NUMBER, m_Number); NNrZb?
//}}AFX_DATA_MAP x@(f^P
} [A/+tv
#1lS\!
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) ;eSf4_~
//{{AFX_MSG_MAP(CCaptureDlg) 761"S@tf$}
ON_WM_SYSCOMMAND() {xx;zjt%}}
ON_WM_PAINT() SNV+.xN
ON_WM_QUERYDRAGICON() gKH"f%lK
ON_BN_CLICKED(ID_ABOUT, OnAbout) GHrT?zEX
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) V$%Fs{
ON_BN_CLICKED(ID_CHANGE, OnChange) D,R2wNF
//}}AFX_MSG_MAP Hu!>RSg,,2
END_MESSAGE_MAP() 7)X&fV6<8
Q`fA)6U
BOOL CCaptureDlg::OnInitDialog() %LaC$w_X
{ N=q29JU
CDialog::OnInitDialog(); ,>EY9j
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); "4-Nnm
ASSERT(IDM_ABOUTBOX < 0xF000); l.'E\3Bo
CMenu* pSysMenu = GetSystemMenu(FALSE); ue2nfp
if (pSysMenu != NULL) u,k8i:JY
{ ju6_L<
CString strAboutMenu; -5*;J&.
strAboutMenu.LoadString(IDS_ABOUTBOX); ^ x#RUv
if (!strAboutMenu.IsEmpty()) /9^0YC;Y*
{ N.cRZm%
pSysMenu->AppendMenu(MF_SEPARATOR); WK5bt2x
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); EjCs
} F4l6PGxF&\
} QU;C*}0Zl
SetIcon(m_hIcon, TRUE); // Set big icon K&oO+ G^f
SetIcon(m_hIcon, FALSE); // Set small icon { J%$.D(/
m_Key.SetCurSel(0); DcM+K@1E4^
RegisterHotkey(); `SbX`a0p2
CMenu* pMenu=GetSystemMenu(FALSE); ~x\Q\Cxp
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); h$h`XBVZe;
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); /]>{"sS(
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); x1ex}_\
return TRUE; // return TRUE unless you set the focus to a control ,;& PKY
} U}h
|Zk
q.tL'
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) oW9rl]+
{ gVWLY;c 3}
if ((nID & 0xFFF0) == IDM_ABOUTBOX) QVhBHAw
{ c>k6i?u:X7
CAboutDlg dlgAbout; L(rjjkH
dlgAbout.DoModal(); `-\JjMSQ1
} \Vq;j 1
else +N!{(R:"v}
{ yXmp]9$
CDialog::OnSysCommand(nID, lParam); {u][q
&n
} id9T[^h
} Q)dns)_x
9_dsiM7CT
void CCaptureDlg::OnPaint() :CHd\."%+1
{ lO@Ba;x
if (IsIconic()) X28WQdP,7
{ 6u8fF|s
CPaintDC dc(this); // device context for painting 0 pz
X!f1~
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); /!3:K<6@
// Center icon in client rectangle L4-Pq\2
int cxIcon = GetSystemMetrics(SM_CXICON); Y'R1\Go-
int cyIcon = GetSystemMetrics(SM_CYICON); [K QZHIe
CRect rect; T!E LH!
GetClientRect(&rect); (]dZ+"O{
int x = (rect.Width() - cxIcon + 1) / 2; 0:S)2"I58p
int y = (rect.Height() - cyIcon + 1) / 2; j+_75t`AZ
// Draw the icon Un+Jz
?Y
dc.DrawIcon(x, y, m_hIcon); (\
%y)
} a-=apD1RvG
else w+D5a
VJ
{ |U0@(H
CDialog::OnPaint(); u'][3
} [b'fz
} KfS^sT
} 4^UVdz
HCURSOR CCaptureDlg::OnQueryDragIcon() &*-2k-16
{ =V4!t|(7
return (HCURSOR) m_hIcon; ybkN^OEJ
} - d6>
8tk`1E8!j
void CCaptureDlg::OnCancel() HDxw2nz*R
{ _FgeE`X
if(bTray) djM=QafB:C
DeleteIcon(); "yk%/:G+
CDialog::OnCancel(); p^!p7B`qe.
} fba3aId[
*4E,|IJ
void CCaptureDlg::OnAbout() ij^!TY[0
{ -OxHQ
CAboutDlg dlg; a#=-Aj-
dlg.DoModal(); QJ?!_2Ax
} rY.:}D
,j<"~"]
=
void CCaptureDlg::OnBrowse() ,)G,[ih
{ +J9lD`z
CString str; &B
C#u.^!
BROWSEINFO bi; /;1FZ<zU
char name[MAX_PATH]; /0(KKZ)
ZeroMemory(&bi,sizeof(BROWSEINFO)); on$a]zx'@
bi.hwndOwner=GetSafeHwnd(); l|{<!7a
bi.pszDisplayName=name; /zKuVaC
bi.lpszTitle="Select folder"; .S;/v--F
bi.ulFlags=BIF_RETURNONLYFSDIRS; CTYkjeej
LPITEMIDLIST idl=SHBrowseForFolder(&bi); Wi<Fkzj
if(idl==NULL) NM ]/OKs'H
return; |Rc#Q<Vh|
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); 0XNb@ogo
str.ReleaseBuffer(); &2J|v#$F
m_Path=str; 5[k35c{
if(str.GetAt(str.GetLength()-1)!='\\') \;<Y/sg
m_Path+="\\"; D?R z|
UpdateData(FALSE); cCIEG e6
} mLO6`]p{H
98"N UT
void CCaptureDlg::SaveBmp() QkbN2mFv%
{ !/SFEL@_B
CDC dc; ;iVyJZI
dc.CreateDC("DISPLAY",NULL,NULL,NULL); o-_a0j
CBitmap bm; P<~y$B
int Width=GetSystemMetrics(SM_CXSCREEN); ;f\0GsA#
int Height=GetSystemMetrics(SM_CYSCREEN); Nx__zC^r
bm.CreateCompatibleBitmap(&dc,Width,Height); so*7LM?ib>
CDC tdc; \9DTf:!4Z
tdc.CreateCompatibleDC(&dc); |rQ;|+.
CBitmap*pOld=tdc.SelectObject(&bm); "fdG5|NJe
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); E;N8{Ye_
tdc.SelectObject(pOld); F(9T;F
BITMAP btm; <Coh
&g_
bm.GetBitmap(&btm); *0@e_h
DWORD size=btm.bmWidthBytes*btm.bmHeight; /VQ<}S[k}-
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); 3 0Z;}<)9
BITMAPINFOHEADER bih; P%c<0y"O:>
bih.biBitCount=btm.bmBitsPixel; 9^n
]qg^
bih.biClrImportant=0; Z)<>d.
bih.biClrUsed=0;
<_~`)t
bih.biCompression=0; smggr{-
bih.biHeight=btm.bmHeight; tP9}:gu
bih.biPlanes=1; ?a%
u=G
bih.biSize=sizeof(BITMAPINFOHEADER); QXCI+Fcg
bih.biSizeImage=size; SL*(ZEn"
bih.biWidth=btm.bmWidth; OA;L^d
bih.biXPelsPerMeter=0; =0Mmxd&o=M
bih.biYPelsPerMeter=0; %Vq@WF
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); _F9
c.BH
static int filecount=0; ;%}
CString name; J{Jxb1:c
name.Format("pict%04d.bmp",filecount++); 4{TUoI6ii
name=m_Path+name; rlq8J/0/+
BITMAPFILEHEADER bfh; .dV!d u
bfh.bfReserved1=bfh.bfReserved2=0; 6O}r4*
bfh.bfType=((WORD)('M'<< 8)|'B'); 9ccEF6o0=
bfh.bfSize=54+size; VCI G+Gz
bfh.bfOffBits=54; DIY WFVh
CFile bf; YG_3@`-<
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ y=CemJ[~
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); GZ"O%:d
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); iiu\_ a=0b
bf.WriteHuge(lpData,size); No?pv"
bf.Close(); R!O'DM+
nCount++; d;z`xy(C
} 8m iIlB
GlobalFreePtr(lpData); +q1@,LxN
if(nCount==1) J<2N~$
m_Number.Format("%d picture captured.",nCount); |b@-1
else KM6r}CDHs
m_Number.Format("%d pictures captured.",nCount); "(5M }5D
UpdateData(FALSE); w*?JW
} F
1BPzRo`
j JW0a\0
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) x|Dj
{ |cH\w"DcXw
if(pMsg -> message == WM_KEYDOWN) TSOt$7-
{ p8Pvctc
if(pMsg -> wParam == VK_ESCAPE) ?@ O[$9y
return TRUE; z;-2xD0&U[
if(pMsg -> wParam == VK_RETURN) b|EZ;,i
return TRUE; JSM{|HJxh
} ^vzNs>eJ
return CDialog::PreTranslateMessage(pMsg); W!{uEH{%l
} &{>~|^
9T\:ID=h
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) fgNEq
{ D,2,4h!ka
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ "|hmiMdGB
SaveBmp(); 2`;
0y M
return FALSE; Y!KGJ^.mF
} b[$>HB_Na
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ *@yYqI<1a
CMenu pop; Kh27[@s
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); PpbW+}aCF
CMenu*pMenu=pop.GetSubMenu(0); SkY|.w.
pMenu->SetDefaultItem(ID_EXITICON); %FwLFo^v
CPoint pt; PffRV7qU0
GetCursorPos(&pt);
@>BFhH
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); `=oN &!
if(id==ID_EXITICON) R{.ku!w
DeleteIcon(); r8mE
else if(id==ID_EXIT) [hs{{II
OnCancel(); rVkHo*Q
return FALSE; e|`&K"fnq
} Lm8cY
LRESULT res= CDialog::WindowProc(message, wParam, lParam); )ZT&V