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:
BfX%|CWh
].LJt['%8 一、实现方法
gBMta+<fE~ `2pO5B50 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:
w#W5}i&x %rFP#L #pragma data_seg("shareddata")
D 5=C^`$2 HHOOK hHook =NULL; //钩子句柄
bAUHUPe UINT nHookCount =0; //挂接的程序数目
!&Z*yH static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
OdO{xG G@ static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
$Xf~# uH static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
7^HpVcSM static int KeyCount =0;
x]H3Y3
static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
n1_ %Td #pragma data_seg()
,&0Z]* 'zE:
fLo 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
C2NzP & FD 4 uShM0qa DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
1U ,bxz]S1W BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
I`lDWL cKey,UCHAR cMask)
tAaYL
\~ {
}Bd_:#.mw BOOL bAdded=FALSE;
v<j2L"bj for(int index=0;index<MAX_KEY;index++){
;.\g-`jb if(hCallWnd[index]==0){
/({P1ti:C hCallWnd[index]=hWnd;
sbzeY1 HotKey[index]=cKey;
@sN^BX`z HotKeyMask[index]=cMask;
H%FM bAdded=TRUE;
fTTm$,f5N KeyCount++;
!TGr .R break;
\{lE0j7}h }
t`uc3ta"9 }
b"^\)|*4; return bAdded;
R3cg2H }
ZH% we //删除热键
Sq<3Rw BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
W.IH#`-9E {
ej<`CQ BOOL bRemoved=FALSE;
h5j<u for(int index=0;index<MAX_KEY;index++){
$]Jf0_ if(hCallWnd[index]==hWnd){
YjX*)Q_sl? if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
f:S}h-AL& hCallWnd[index]=NULL;
u9BjgK(M HotKey[index]=0;
!W(`<d]68: HotKeyMask[index]=0;
CNq[4T'~A bRemoved=TRUE;
=ydpU<aS KeyCount--;
RTZ:U@
break;
&h\7^=s. }
&eU3(F`. }
3\]~!;dI }
W5|j1He& return bRemoved;
yYg }
@bE~@4mOu X`D+jiQ(f 2!BsEvB( DLL中的钩子函数如下:
=88t*dH(," .ByU LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
w?*jdwh,' {
kwOeHdV^ BOOL bProcessed=FALSE;
'P,,<nkr| if(HC_ACTION==nCode)
7r[' {
Fk aXA.JE if((lParam&0xc0000000)==0xc0000000){// 有键松开
p+vh[+yp switch(wParam)
]r!QmWw~V {
Et.j1M|g case VK_MENU:
*O5: MaskBits&=~ALTBIT;
/e .D/;] break;
QTfu: m{ case VK_CONTROL:
=E!x~S;N MaskBits&=~CTRLBIT;
ETe- break;
9|<Be6 case VK_SHIFT:
.x>HA^4 MaskBits&=~SHIFTBIT;
UTvs
|[ break;
Ajg\aof0{ default: //judge the key and send message
IyOpju)? break;
rtus`A5p }
J$rJd9t for(int index=0;index<MAX_KEY;index++){
ZJ9x6|q if(hCallWnd[index]==NULL)
qrpb[)Ll continue;
bb}?h]a if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Oi6Eo~\f {
/7x\;&bc SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
JdO)YlM- bProcessed=TRUE;
X5 j=C] }
3T?f5+@I }
E0<)oQ0Xa> }
&kiF/F 1 else if((lParam&0xc000ffff)==1){ //有键按下
s%^o*LQ|9 switch(wParam)
e6 2y {
o)p[
C
case VK_MENU:
O2% ` 2h MaskBits|=ALTBIT;
%Lyz_2q A break;
TW2Z=ks= case VK_CONTROL:
,z G(u 1 MaskBits|=CTRLBIT;
VyY.r#@ break;
O)1E$#~ case VK_SHIFT:
DFc [z"[ MaskBits|=SHIFTBIT;
SOs,) break;
~$Y|ca default: //judge the key and send message
|by@ :@*y break;
KJdzv!l= }
=LK}9ViH for(int index=0;index<MAX_KEY;index++){
4\HsU9x if(hCallWnd[index]==NULL)
=U
c$D* continue;
rH.gF43O: if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
n]v7V&mj\ {
D^|7#b,zcH SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
eC;!YGZ bProcessed=TRUE;
RG&6FRoq }
;NP[_2|-, }
]L8q }
lLMPw}r< if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
$kl$D"*0 for(int index=0;index<MAX_KEY;index++){
R6<4"?*r if(hCallWnd[index]==NULL)
??(Kwtx{ continue;
k}U
JVH21k if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
>XnO&hW SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
A9;0y jae //lParam的意义可看MSDN中WM_KEYDOWN部分
~#Aa Ldq }
[ f34a }
:Y^I]`lR" }
cgN>3cE return CallNextHookEx( hHook, nCode, wParam, lParam );
M(2`2-/xh }
CV3DMA ;UpJ=?W 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:
8lb-}= ESv:1o`?n BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
> 0T
Za BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
c{VJ2NQ+ %t[K36,p 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:
)$_,?*fq: )*D'csGc LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
+v-LL*fa {
M _ (2sq if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
o%qkq K1 {
F~R7~ZE //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
7kd|K
b( SaveBmp();
OD|1c6+X return FALSE;
,ux+Qz5( }
]7vf#1i< …… //其它处理及默认处理
7=3O^=Q^Q }
O,irpQ ?(D}5`Nfu `< Yf{'* 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
6p m~sD &D*8l?A/1f 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
9^\hmpP@D N"1QX6 二、编程步骤
Q.ukY@L.' '\t7jQ 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
O]ZC+]}/ q~O>a0f0 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
75AslL?t 61|B]ei/ 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
mf2Mx=oy p:tN642 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
U|?,N0%Z1 kFwxK"n@C 5、 添加代码,编译运行程序。
9|3o< Z
Xb}R^O- 三、程序代码
Y|RdzCM |X 3">U +- ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
On%,l #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
lwJip IO #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
8K^f:)Qw #if _MSC_VER > 1000
aDveU)]=1 #pragma once
n_P(k-^U* #endif // _MSC_VER > 1000
c,$mWTC #ifndef __AFXWIN_H__
f[}|rf #error include 'stdafx.h' before including this file for PCH
c[:Wf<%| #endif
t:T?7-XIE #include "resource.h" // main symbols
Nb1J ~v class CHookApp : public CWinApp
oyW00]ka {
&^+3errO public:
u`6/I#q` CHookApp();
i6 L // Overrides
F`srE6H
// ClassWizard generated virtual function overrides
EneAX&SG //{{AFX_VIRTUAL(CHookApp)
q,@+^aZ public:
@\PpA9ebg% virtual BOOL InitInstance();
,LZ(^u virtual int ExitInstance();
W_m!@T"@H //}}AFX_VIRTUAL
MS{{R+& //{{AFX_MSG(CHookApp)
74]a/'4 // NOTE - the ClassWizard will add and remove member functions here.
@d)LRw.I // DO NOT EDIT what you see in these blocks of generated code !
ohsH 2]C //}}AFX_MSG
qiU5{} DECLARE_MESSAGE_MAP()
:k N5?t= };
d$[8w/5Of LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
BSDk9Oc BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
7E\gxQ(vU BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
WgPgG0VJE BOOL InitHotkey();
ytz8=\p_b BOOL UnInit();
_:%U_U #endif
!0Nf9 Mj'lASI //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
HamEIL-l. #include "stdafx.h"
_[JkJwPTx #include "hook.h"
;
8E; #include <windowsx.h>
G_+Ph^ #ifdef _DEBUG
.[,6JU% #define new DEBUG_NEW
6|oWaA\gI #undef THIS_FILE
}{mG/(LX8 static char THIS_FILE[] = __FILE__;
n^Vxi;F #endif
ymkR! #define MAX_KEY 100
o8tS #define CTRLBIT 0x04
0[9I0YBJ #define ALTBIT 0x02
Mr.JLW #define SHIFTBIT 0x01
L$}g3{ #pragma data_seg("shareddata")
PGY9*0n HHOOK hHook =NULL;
}$:#+
(17 UINT nHookCount =0;
u<kD} static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
9v$qrM`8 static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
<soj&f+ static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
PI63RH8e static int KeyCount =0;
H
pFb{ static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
0Ve%.k #pragma data_seg()
MHl^/e@ HINSTANCE hins;
eE9|F/-L void VerifyWindow();
N5KEa]k1nw BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
^K.*.| //{{AFX_MSG_MAP(CHookApp)
gn`zy9PU // NOTE - the ClassWizard will add and remove mapping macros here.
ls]H6z*q // DO NOT EDIT what you see in these blocks of generated code!
C$K+=jT //}}AFX_MSG_MAP
G
*@@K END_MESSAGE_MAP()
B-dlm8gX
?[|hGR2L CHookApp::CHookApp()
`#U ]iwW! {
DM'qNgB7 // TODO: add construction code here,
5%&] // Place all significant initialization in InitInstance
H!. ZH(asY }
3KT_AJ4} >fbo
r'| CHookApp theApp;
yZ~b+=UM LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
x
^[F]YU {
4oN${7k0 BOOL bProcessed=FALSE;
v~`*(Hh if(HC_ACTION==nCode)
RM#fX^)= {
zLK\I~rU! if((lParam&0xc0000000)==0xc0000000){// Key up
@p6@a6N% switch(wParam)
%yvA {
/Zx8nx'{V case VK_MENU:
1ys( v MaskBits&=~ALTBIT;
O4N-_Kfp/ break;
y7La_FPrl case VK_CONTROL:
Wxs>osq MaskBits&=~CTRLBIT;
bKByU{t break;
FF3&Y^+^" case VK_SHIFT:
fCr\u6Tb MaskBits&=~SHIFTBIT;
E\iJP^n break;
tIp{},bQ^ default: //judge the key and send message
<N-=fad] break;
QXB|!' }
gWi{\x8dt for(int index=0;index<MAX_KEY;index++){
ZMe}M!V if(hCallWnd[index]==NULL)
Oj-r;Tt_G} continue;
@`Wt4< if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Th/{x
h {
/ISLVp%H SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
Q ]0r:i=
. bProcessed=TRUE;
O a1'oYIHg }
eK*W=c#@ }
kXMP=j8 }
>fg4x+0 % else if((lParam&0xc000ffff)==1){ //Key down
tO`?{?W7 switch(wParam)
i7(~>6@| {
,S0UY):( A case VK_MENU:
Vq U|kv
MaskBits|=ALTBIT;
*.3y2m,bZ break;
7O9n!aJ case VK_CONTROL:
;b| MaskBits|=CTRLBIT;
'{CWanTPi break;
`{<JC{yc? case VK_SHIFT:
qS|AdkNL MaskBits|=SHIFTBIT;
E#aZvE break;
=R2l3-HA= default: //judge the key and send message
DU`v J2 break;
'QnW9EHLF }
|e+aZ%g for(int index=0;index<MAX_KEY;index++)
Y!it!9 {
Pr2;Kp if(hCallWnd[index]==NULL)
I5Q~T5Ar continue;
5v+L';wx[T if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
?eVj8 $BQo {
%!yxC SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
D$mf5G & bProcessed=TRUE;
DUhT>,~] }
&\c5!xQ9* }
Zsgi{ }
#?Wo <]i if(!bProcessed){
1EuK,:x for(int index=0;index<MAX_KEY;index++){
EzUPah if(hCallWnd[index]==NULL)
(s;zRb!4L continue;
U&s(1~e\ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
HGb.656r SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
FTbtAlqh< }
W}?s^ }
rXuAixu!t }
u
X>PefR return CallNextHookEx( hHook, nCode, wParam, lParam );
Uqr{,-]5v }
LjCykk x~nQm]@`h BOOL InitHotkey()
OFQ{9 {
a 1NCVZ if(hHook!=NULL){
(]}XLMi,|! nHookCount++;
QY@nE
return TRUE;
m qpd }
wCC-Y kA else
AsD1-$ hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
bYK]G+Ww if(hHook!=NULL)
OkkhP nHookCount++;
dbg|VoNf return (hHook!=NULL);
C_C$5[~-: }
vmMV n-\# BOOL UnInit()
pL%4= ]m {
f7S^yA[[ if(nHookCount>1){
(5>{?dR)| nHookCount--;
%@o&*pF^, return TRUE;
9Y\F53p&j }
JTjzT2`A. BOOL unhooked = UnhookWindowsHookEx(hHook);
ipfm'aQ if(unhooked==TRUE){
G;Us-IRZ nHookCount=0;
K7+^Yv\YQx hHook=NULL;
cj`#Tg. }
O~nBz):2 return unhooked;
t]gq+ c Lo }
Vvx a.B G#^m<G^M BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
q#.rYzl0 {
x_]",2 W' BOOL bAdded=FALSE;
9UB??049z for(int index=0;index<MAX_KEY;index++){
iZsau2K if(hCallWnd[index]==0){
wVlSjk hCallWnd[index]=hWnd;
nl.~^CP HotKey[index]=cKey;
|zK!+fu HotKeyMask[index]=cMask;
\,$r,6-g bAdded=TRUE;
zojuH8 KeyCount++;
O_qu;Dx! break;
u Eu6f }
V<
2IIH5^ }
QJ[(Y@ O6a return bAdded;
tU8g(ep,o }
[_B+DD=} |`N$>9qN BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Xi 1q]ps {
4W[AXDS BOOL bRemoved=FALSE;
Z5"!0B^ j for(int index=0;index<MAX_KEY;index++){
a*pXrp@ if(hCallWnd[index]==hWnd){
;9 =}_h)] if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
IwZZewb-a hCallWnd[index]=NULL;
Dwm@E\^ihm HotKey[index]=0;
dj8F6\ HotKeyMask[index]=0;
j+z' bRemoved=TRUE;
p,M3#^ q KeyCount--;
7I @9v=xV break;
KZ367&>b7 }
I,?Fqg'sq }
M6@'9E]|> }
awj} K return bRemoved;
+?4*,8Tmmz }
9Bbm7Gd ]6?c8/M void VerifyWindow()
B^Rw?:hN {
e/m'a|%: for(int i=0;i<MAX_KEY;i++){
*il]$i if(hCallWnd
!=NULL){ a#OhWqu$
if(!IsWindow(hCallWnd)){ XL"v21X
hCallWnd=NULL; z=- 8iks|
HotKey=0; %l9WZ*yZ`2
HotKeyMask=0; ` $QzTv
KeyCount--; !."%M^J
} ;%b <uV
} )%H5iSNG$P
} N9>'/jgZX
} =/ !{<^0
E9 80yXJR
BOOL CHookApp::InitInstance() iuH8g
{ + !E{L
AFX_MANAGE_STATE(AfxGetStaticModuleState()); @+T{M:&l
hins=AfxGetInstanceHandle(); hM1&A
InitHotkey(); &t9XK 8S
return CWinApp::InitInstance(); {Vt^Xc
} mBD!:V'
y(wqcDok|n
int CHookApp::ExitInstance() ~(l2%(3G
{ CHdet(_=v
VerifyWindow(); r['=a/.C
UnInit(); F]dd>#
return CWinApp::ExitInstance(); JQ{zWJlt
} 2y
.-4?e
hq&
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file 6\S$I5
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) U#~nN+SIt
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ Ilt L@]e
#if _MSC_VER > 1000 .T62aJ
#pragma once c}I8!*\
#endif // _MSC_VER > 1000 Wj f>:\w
4Q`=t&u
class CCaptureDlg : public CDialog V.P5v{
{ R>YMGUH~w
// Construction B1i!te}*
public: C.9eXa1wkT
BOOL bTray; )T$fk
BOOL bRegistered; bTo@gJkn
BOOL RegisterHotkey(); 0D]Yz`n3
UCHAR cKey; !Sy'Z6%f
UCHAR cMask; >1)@n3. <O
void DeleteIcon(); 1X!f!0=g+
void AddIcon(); y uK5 r
UINT nCount; -$]DO5fY
void SaveBmp(); +(h6{e%)
CCaptureDlg(CWnd* pParent = NULL); // standard constructor I vl^,{4
// Dialog Data <>5:u
//{{AFX_DATA(CCaptureDlg) OV@h$fg
enum { IDD = IDD_CAPTURE_DIALOG }; l]58P
CComboBox m_Key; Z+h70,|
BOOL m_bControl; r* /XB0
BOOL m_bAlt; }T1Xds8w)t
BOOL m_bShift; z7us*8X{
CString m_Path; nm:let7GB
CString m_Number; V~uA(3\U
//}}AFX_DATA Q\/":ISq1
// ClassWizard generated virtual function overrides V[M$o
//{{AFX_VIRTUAL(CCaptureDlg) coP$7Q .
public:
j5VRv$P
virtual BOOL PreTranslateMessage(MSG* pMsg); lWyP[>*
protected: ^6NABXL
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 2Ws/0c
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); dc@wf;o
//}}AFX_VIRTUAL s2' :&5(
// Implementation 4f @\f7\
protected: L8-[:1
HICON m_hIcon; as\K(c9
// Generated message map functions J ]l@ r
//{{AFX_MSG(CCaptureDlg) 51;%\@=
virtual BOOL OnInitDialog(); [k&s!Qp
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); id[>!fQ=Y
afx_msg void OnPaint(); PuoJw~^h
afx_msg HCURSOR OnQueryDragIcon(); .T$9Q Ar5
virtual void OnCancel(); !y2h`ZAZ
afx_msg void OnAbout(); d`q)^
afx_msg void OnBrowse(); $> rfAs!
afx_msg void OnChange(); !=Kay^J~.
//}}AFX_MSG $j4?'-i=e
DECLARE_MESSAGE_MAP() Kg0\Pvg8?T
}; [m+O0VK$
#endif d(B;vL@R2V
\z2hXT@D
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file u b>K^
#include "stdafx.h" t-|=weNy
#include "Capture.h" 'JKvy(n>
#include "CaptureDlg.h" u1|Y;*
#include <windowsx.h> 2T2#HP
#pragma comment(lib,"hook.lib") !.GY~f<d$
#ifdef _DEBUG Q,qylL
#define new DEBUG_NEW O/r<VTOp
#undef THIS_FILE =smY/q^3
static char THIS_FILE[] = __FILE__; aFc'_FrQ
#endif Z
a
y'/b
#define IDM_SHELL WM_USER+1 VA
r?teY
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); uKAHJ$%
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); GC#95
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; S0QU@e
class CAboutDlg : public CDialog &I'F-F;
{ xfV2/A#h
public: Yw1q2jT
CAboutDlg(); Bma|!p{
// Dialog Data 4hr+GO@o(
//{{AFX_DATA(CAboutDlg) g8*|"{
enum { IDD = IDD_ABOUTBOX }; 9NoPrR=x1
//}}AFX_DATA eMd1%/[
// ClassWizard generated virtual function overrides ~~E=E;9
//{{AFX_VIRTUAL(CAboutDlg) 8; N}d)*O
protected: 1Y0oo jD
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support ;8xn"G0}a
//}}AFX_VIRTUAL `DY4d$!4
// Implementation 3&d+U)E
protected: J-{E`ibGN
//{{AFX_MSG(CAboutDlg) @5@{Es1u
//}}AFX_MSG T-cVM>u\D
DECLARE_MESSAGE_MAP() |;1:$E"
}; l:C0:m%
}8KL]11b
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) !-o||rt
{ &CsBG?@Z|
//{{AFX_DATA_INIT(CAboutDlg) K<9MK>T
//}}AFX_DATA_INIT 0`Qs=R`OM
} +fR`@HI
Xwq2;Bq
void CAboutDlg::DoDataExchange(CDataExchange* pDX) w8@|b}
{ 'eXw`kw(
CDialog::DoDataExchange(pDX); u=i^F|
//{{AFX_DATA_MAP(CAboutDlg) 2&f=4b`Z
//}}AFX_DATA_MAP WW/m
/+
} 2/gj@>dt
QO^X7A"?X
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) tKViM@T
//{{AFX_MSG_MAP(CAboutDlg) ;+Kewi;<
// No message handlers BTQC1;;N
//}}AFX_MSG_MAP zi 14]FWo
END_MESSAGE_MAP() U"G+su->e
o;P;=<
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) (NV=YX?s
: CDialog(CCaptureDlg::IDD, pParent) WD1$"}R
{ 4Lq]yUj
//{{AFX_DATA_INIT(CCaptureDlg) q&S.C9W
m_bControl = FALSE; lGgKzi9VD
m_bAlt = FALSE; c{P`oB8
m_bShift = FALSE; W n mRRq^
m_Path = _T("c:\\"); qq{N; C
m_Number = _T("0 picture captured."); qk"=nAJX
nCount=0; Re ur#K
bRegistered=FALSE; kqB00
;
bTray=FALSE; Q$5:P&
//}}AFX_DATA_INIT (ZSSp1Rv
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 '0]_8Sy&
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); lLf01sa4
} ]/naH#8G
J}u1\Id%
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) \ku{-^7
{ AlhiF\+ C
CDialog::DoDataExchange(pDX); ZDD|MH
//{{AFX_DATA_MAP(CCaptureDlg) X~4:sJ\P=
DDX_Control(pDX, IDC_KEY, m_Key); e;3 (,
DDX_Check(pDX, IDC_CONTROL, m_bControl); ^>28>!"1
DDX_Check(pDX, IDC_ALT, m_bAlt); _$lQK{@rY
DDX_Check(pDX, IDC_SHIFT, m_bShift); by[(9+/z$
DDX_Text(pDX, IDC_PATH, m_Path); k/Ro74f=
DDX_Text(pDX, IDC_NUMBER, m_Number); "Jd1&FsCwX
//}}AFX_DATA_MAP 2DQC)Pe+z
} ![n`n(oN
FaM~ 56Pa
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) iB_j*mX]
//{{AFX_MSG_MAP(CCaptureDlg) A|-\C$
ON_WM_SYSCOMMAND() m1;jS|
ON_WM_PAINT() b=l}|)a
ON_WM_QUERYDRAGICON() pQ\ [F
ON_BN_CLICKED(ID_ABOUT, OnAbout) fX|,s2-FW
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) l.)!jWY
ON_BN_CLICKED(ID_CHANGE, OnChange) AVZ@?aJgF
//}}AFX_MSG_MAP #XPU$=
END_MESSAGE_MAP() #| Po&yu4R
+rX,Sl`/
BOOL CCaptureDlg::OnInitDialog() U#4W"1~iX
{ bV,R*C
CDialog::OnInitDialog(); @/iLC6QF
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); Y{@[)M{<
ASSERT(IDM_ABOUTBOX < 0xF000); K`<P^XJr
CMenu* pSysMenu = GetSystemMenu(FALSE); @jeV[N,0
if (pSysMenu != NULL) o(qmI/h
{ "j>0A
Hem
CString strAboutMenu; S>Y?QQ3#wp
strAboutMenu.LoadString(IDS_ABOUTBOX); Ymvd=F
if (!strAboutMenu.IsEmpty()) 1OL~)X3
{ ,#haai(
pSysMenu->AppendMenu(MF_SEPARATOR); V [>5
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); RwKN
} Q+dI,5YF
} M
XQ7%G
SetIcon(m_hIcon, TRUE); // Set big icon \/Y<.#?_
SetIcon(m_hIcon, FALSE); // Set small icon ,{at?y*
m_Key.SetCurSel(0); jd*H$BU^
RegisterHotkey(); i[n1}E.@
CMenu* pMenu=GetSystemMenu(FALSE); h]$zub
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); &y+eE?j
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); p04w83 jX
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); 2S/ 7f:
return TRUE; // return TRUE unless you set the focus to a control ZC-N4ESr
} F6/bq/s
z{x -Vfd
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) EK^2 2vi$
{ VPbNLi
if ((nID & 0xFFF0) == IDM_ABOUTBOX) 2XpGgG`2`C
{ &jcr7{cD
CAboutDlg dlgAbout; x.RZ!V-
dlgAbout.DoModal(); yAe}O#dy
} /2q%'"x(
else }S4Fy3)
{ |/$#G0X;H
CDialog::OnSysCommand(nID, lParam); 3u<2~!sR
} cs)hq4-L`
} zx*f*L,6F
?1sY S
void CCaptureDlg::OnPaint() [R$4n-$
{ fBmx +7
if (IsIconic()) #s%$kYp 1
{ QWEK;kUa@
CPaintDC dc(this); // device context for painting |zE7W
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); Pmb`05\
// Center icon in client rectangle S"l&=J2dc
int cxIcon = GetSystemMetrics(SM_CXICON); teb(\% ,
int cyIcon = GetSystemMetrics(SM_CYICON); JI(|sAH
CRect rect; ,*30Q
GetClientRect(&rect); H2} i .
int x = (rect.Width() - cxIcon + 1) / 2; J2rH<Fd[up
int y = (rect.Height() - cyIcon + 1) / 2; 8z&9
// Draw the icon paY%pU
dc.DrawIcon(x, y, m_hIcon); zFIbCv8
} Aj_}B.
else CAO$Zt
{ n$QFj'
CDialog::OnPaint(); aU@z\sQ
} 9w1)Mf}
} RA}PM?D/
9]iDNa/D
HCURSOR CCaptureDlg::OnQueryDragIcon() 5:wf"3%%
{ _C?K;-v}
return (HCURSOR) m_hIcon; ]@EjKgs
} "q8wEu,z[
cP,jC(<N
void CCaptureDlg::OnCancel() W7 $yE},z
{ H;8(y4;
if(bTray) Qk=
w ,`
DeleteIcon(); 4p]Y`];U
CDialog::OnCancel(); %{Gqhb=u\
} 5"+* c@L
a%kj)ah
void CCaptureDlg::OnAbout() 2B#\683
{ %o-*~GQ@B
CAboutDlg dlg; 8eNGPuoL)
dlg.DoModal(); `#hy'S:e
} v-o/zud]]
m(Oup=\%b}
void CCaptureDlg::OnBrowse() #AHIlUH"m
{ +_<#8v
CString str; zI(Pti
BROWSEINFO bi; n(L {2r
char name[MAX_PATH]; Uvp?HZ\Z
ZeroMemory(&bi,sizeof(BROWSEINFO)); `&o|=
bi.hwndOwner=GetSafeHwnd(); ;iEqa"gO
bi.pszDisplayName=name; E_?
M&
bi.lpszTitle="Select folder"; <]<50
bi.ulFlags=BIF_RETURNONLYFSDIRS; F~:5/-zs
LPITEMIDLIST idl=SHBrowseForFolder(&bi); V}( "8L
if(idl==NULL) /Wa+mp
return; ],LOkAX
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); 2:]Sy4K{
str.ReleaseBuffer(); 0o#lB^e;l
m_Path=str; R$\ieNb
if(str.GetAt(str.GetLength()-1)!='\\') ^m~=<4eX
m_Path+="\\"; C]k\GlhB
UpdateData(FALSE); XH/|jE.9^|
} tC;D4i
|D\ ukml
void CCaptureDlg::SaveBmp() = #`FXO1C
{ Q{%ow:;s*
CDC dc; lm+wjhkN
dc.CreateDC("DISPLAY",NULL,NULL,NULL); .p&M@h
w
CBitmap bm; /w|YNDA]j
int Width=GetSystemMetrics(SM_CXSCREEN); ji1A>jepF
int Height=GetSystemMetrics(SM_CYSCREEN); 7M4iBk4I
bm.CreateCompatibleBitmap(&dc,Width,Height); P++gR@
CDC tdc; :F_U^pyG
tdc.CreateCompatibleDC(&dc); te`4*t
CBitmap*pOld=tdc.SelectObject(&bm); >+1bTt/-F
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); TnC'<zm9!
tdc.SelectObject(pOld); x@/!H<y
BITMAP btm; giPyo"SD
bm.GetBitmap(&btm); V; ChrmE
DWORD size=btm.bmWidthBytes*btm.bmHeight; :%0Z
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); U_:/>8})d
BITMAPINFOHEADER bih; I;No++N0
bih.biBitCount=btm.bmBitsPixel; 3[c54S+(U
bih.biClrImportant=0; ^Tl|v'
bih.biClrUsed=0; =[P ||
bih.biCompression=0; f}fM%0/5
bih.biHeight=btm.bmHeight; bv+PbK]iO
bih.biPlanes=1; n9#@
e}r
bih.biSize=sizeof(BITMAPINFOHEADER); [P<oyd@#
bih.biSizeImage=size; jWm<!<~
bih.biWidth=btm.bmWidth;
;HW@ZI
bih.biXPelsPerMeter=0; A;%fAI2Vr
bih.biYPelsPerMeter=0; 'RPe5 vB
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); myPo&"_ x
static int filecount=0; 0_ ;-QAd
CString name; |{$Vk%cUE
name.Format("pict%04d.bmp",filecount++); R8mL|Vb|
name=m_Path+name; H6L`239u
BITMAPFILEHEADER bfh; {3l]/X3
bfh.bfReserved1=bfh.bfReserved2=0; v
+7<}
bfh.bfType=((WORD)('M'<< 8)|'B'); rTx]%{
bfh.bfSize=54+size; >OQ<wO6
bfh.bfOffBits=54; ETmfy}V8
CFile bf; DCHU=r
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ bkV_ ^8
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); z 6p.{M
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); Tfj%Sb,zM
bf.WriteHuge(lpData,size); 5YRa2#d
bf.Close(); AH ;h#dT
nCount++; PJ);d>tz
} V
]Z{0
GlobalFreePtr(lpData); gI[xOK#
if(nCount==1) se_1wCYz
m_Number.Format("%d picture captured.",nCount); 1"i/*}M
else H=*;3gM,'
m_Number.Format("%d pictures captured.",nCount); l{kum2DT
UpdateData(FALSE); |_Vlw&qu+
} f-
_~rQ
|TkO'QN
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) |A"zxNeS"
{ xw`Pq6
if(pMsg -> message == WM_KEYDOWN) gx3arVa
{ <_h
if(pMsg -> wParam == VK_ESCAPE) BeBa4s
return TRUE; *S7<QyVh
if(pMsg -> wParam == VK_RETURN) p2\@E}
z
return TRUE; aCQAh[T
} "I
u3&mc
return CDialog::PreTranslateMessage(pMsg); V4_ZBeWA
} E-CZk_K9
f`T#=6C4|
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) +dlN^P647
{ |'.\}xt7
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ 8^kw
SaveBmp(); h(ZZ7(ue
return FALSE; "1Vuf<?C
} g%Eb{~v
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ 0ZTT^2R
CMenu pop; $vx]\`
^
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); L~>pSP^a
CMenu*pMenu=pop.GetSubMenu(0); wgY:W:y'N
pMenu->SetDefaultItem(ID_EXITICON); ttgb"Wb%S
CPoint pt; "OkJPu2!W
GetCursorPos(&pt); Nvw'[?m
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); !ouJ3Jn
if(id==ID_EXITICON) sZ_+6+ :
DeleteIcon(); Ubv<3syR'
else if(id==ID_EXIT) |pA3ZWm
OnCancel(); z]K:Amp;Z
return FALSE; ApR>b%
} *{6{ZKM
LRESULT res= CDialog::WindowProc(message, wParam, lParam); xO{yr[x"L
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) 5*C#~gd&F
AddIcon(); h<JV6h :8
return res; C`Zz\DNG@
} &Yb!j
O(#DaFJv
void CCaptureDlg::AddIcon() icH\(
{ ^i:%0"[*^i
NOTIFYICONDATA data; qi!+Ceo}
data.cbSize=sizeof(NOTIFYICONDATA); Dwn.0|E
CString tip; 'b~,/lZd
tip.LoadString(IDS_ICONTIP); DJR_"8
data.hIcon=GetIcon(0); ^z)p@sk#
data.hWnd=GetSafeHwnd(); MDAJ
p>o
strcpy(data.szTip,tip); {W,&jC
data.uCallbackMessage=IDM_SHELL; 0w)Gb}o$
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; ?NWc3 .
data.uID=98; j"1#n? 0
Shell_NotifyIcon(NIM_ADD,&data); E+)3n[G
ShowWindow(SW_HIDE); $b OiP
bTray=TRUE; `)?N7g[\u
} hv
(>9N
Y`3V&8X
void CCaptureDlg::DeleteIcon() )B)ecJJ_
{ juIi-*R!
NOTIFYICONDATA data; ip8%9fG\>
data.cbSize=sizeof(NOTIFYICONDATA); VUmf;~
data.hWnd=GetSafeHwnd(); =S#9\W&