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:
jBI VZ!X
aODOc J N 一、实现方法
Pk~P ZN%$k-2 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:
'V 1QuSd ],qG!,V #pragma data_seg("shareddata")
hJhdHy=U HHOOK hHook =NULL; //钩子句柄
FK@rZP UINT nHookCount =0; //挂接的程序数目
?*[t'D9f- static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
CN\s,. ] static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
$w+g%y) static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
+P}'2tE~' static int KeyCount =0;
hkHMBsNi static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
:V}8a!3h #pragma data_seg()
,6i67!lb .s7o$u~l 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。
#(ANyU(#e =ZzhH};aX 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:
r A0[ y <X|"5/h BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
RX?Nv4- cKey,UCHAR cMask)
Zp-
Av8 {
9e=F BOOL bAdded=FALSE;
$qg5m,1? for(int index=0;index<MAX_KEY;index++){
Gp;[WY\ if(hCallWnd[index]==0){
il5WLi;{ hCallWnd[index]=hWnd;
3_^w/-7`B HotKey[index]=cKey;
dE/Vl/ : HotKeyMask[index]=cMask;
5_G7XBvD/w bAdded=TRUE;
kW6}57iV KeyCount++;
^a<=@0| break;
WAqR70{KM }
isWB)$q }
RL.%o?<&? return bAdded;
L
G{N }
7lR(6ka&/ //删除热键
N5%~~JRO BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
EJdq"6S {
@8n0GCv BOOL bRemoved=FALSE;
Tk.MtIs)V} for(int index=0;index<MAX_KEY;index++){
Q}\,7l if(hCallWnd[index]==hWnd){
?o9l{4~g if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
_f^q!tP&d hCallWnd[index]=NULL;
WDE_"Mm HotKey[index]=0;
<mrLld#_:C HotKeyMask[index]=0;
9DKmXL bRemoved=TRUE;
g@B9i= KeyCount--;
#\%GrtM break;
P*I\FV }
aOWbIS[8 }
,dZ
9=] }
hLx*$Z> return bRemoved;
2[j|:Ng7 }
<(3Uu() OEdp:dW| r-4I{GPb DLL中的钩子函数如下:
0 I;>du 0e:K iUr LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
J
+<|8D {
VR*5}Qp BOOL bProcessed=FALSE;
q_cqjly< if(HC_ACTION==nCode)
PJO;[:
.I {
-aKk#fd if((lParam&0xc0000000)==0xc0000000){// 有键松开
mUcHsCszH switch(wParam)
<0v'IHlZ8 {
.N/4+[2p( case VK_MENU:
u+8_et5T MaskBits&=~ALTBIT;
R;I}#b cJ break;
>tib21* case VK_CONTROL:
!l.Rv_o<O MaskBits&=~CTRLBIT;
K# _plpr break;
z_A%>E4 case VK_SHIFT:
YJrK oK} MaskBits&=~SHIFTBIT;
8'`&f& break;
Vk0O^o default: //judge the key and send message
bcz<t) break;
O!Mm~@MoA }
Oo rH for(int index=0;index<MAX_KEY;index++){
z)QyQ if(hCallWnd[index]==NULL)
)TRDM[u continue;
}Z0)FU+ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
e<iTU?eJM {
q.Z0Q SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
"=4=Q\0PT bProcessed=TRUE;
w$61+KH K }
0vQkm< }
"]zq<LmX }
@OwU[\6fc} else if((lParam&0xc000ffff)==1){ //有键按下
,!sAr;Rk` switch(wParam)
2HQHC] {
[>C^ 0\Z~ case VK_MENU:
BN#^
/a- MaskBits|=ALTBIT;
mI0|lp 1$ break;
d{ OY case VK_CONTROL:
Z;WqKIM# MaskBits|=CTRLBIT;
nqiy)ZN#R break;
Y*w<~m case VK_SHIFT:
^9cqT2:t MaskBits|=SHIFTBIT;
{Z-5 break;
{oz04KGsH default: //judge the key and send message
Z!LzyCVl break;
F!zZIaB] }
, aawtdt/ for(int index=0;index<MAX_KEY;index++){
aASnk2DFd if(hCallWnd[index]==NULL)
pC#Z]_k continue;
v,g,c`BjK if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
3b%y+?-{\u {
W=F?+KgL SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
I&1Mh4yu bProcessed=TRUE;
i}+dctg/ }
(_<ruwV]` }
:Tj,;0#/ }
Hej0l^ if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
VMen: for(int index=0;index<MAX_KEY;index++){
+k8><_vr} if(hCallWnd[index]==NULL)
9;h1;9sC| continue;
^z0[{1 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
[gQ~B1O SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
xvpS%MS //lParam的意义可看MSDN中WM_KEYDOWN部分
G
V0q? }
&w/aQs~ }
n6|}^O7 }
r}*2~;:pW return CallNextHookEx( hHook, nCode, wParam, lParam );
9H.E15B }
u7a4taM$d 0{A VH/S 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:
9dKrE_zK: BMFpkK9| BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
.>CqZN,^ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
!u4oo- [Hn+r & 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:
(CuaBHR
^IQC:21 LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
mnu7Y([2> {
E37`g}ZS if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
9D8el}uHf {
;y"E}h //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
2"V?+Hhz SaveBmp();
#c?\(qjWA return FALSE;
tw*qlb FHv }
eZP"M6 …… //其它处理及默认处理
EkXns%][L }
(qB$I\ QdDdrR^& /l:3*u 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
PPE:@!u< ,JVD ;u 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
L$(W*
PG} mjy%xzVr6^ 二、编程步骤
3R4-MK d@] 0 =Ax 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
PX]A1Kt? z
KJ6j ]m 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
HESwz{eSS }>)"!p;t_ 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
if^\Gs$ jL`S6E?7 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
r,yhc = gDAA>U3|$ 5、 添加代码,编译运行程序。
].:S!QO j g$%WAEb 三、程序代码
NSM-p.I9 tLV9b %i( ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
yt_?4Hc" #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
^dqyX( #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
p|AIz3 #if _MSC_VER > 1000
S'TF7u #pragma once
NG S/lKz #endif // _MSC_VER > 1000
%) q5hB #ifndef __AFXWIN_H__
CE*@CkC0z #error include 'stdafx.h' before including this file for PCH
M^g"U` #endif
xj%h-@o6 #include "resource.h" // main symbols
b.ow0WYe class CHookApp : public CWinApp
(A( d]l {
D&N5) public:
;QgJw2G CHookApp();
=b9?r // Overrides
wU+ofj;
+I // ClassWizard generated virtual function overrides
!;iySRZr //{{AFX_VIRTUAL(CHookApp)
W W== public:
=xa`)#4( virtual BOOL InitInstance();
:X2B+}6_& virtual int ExitInstance();
c&F"tLl //}}AFX_VIRTUAL
t;y>q //{{AFX_MSG(CHookApp)
.
6Bz48* // NOTE - the ClassWizard will add and remove member functions here.
t^u X9yvx // DO NOT EDIT what you see in these blocks of generated code !
7,Z%rqf\) //}}AFX_MSG
G}f.fRY DECLARE_MESSAGE_MAP()
M;3uG/E\ };
O'$:wc# LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
J. {[> BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
-Z6ot{% BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
{!6!z, BOOL InitHotkey();
*qKwu?]?> BOOL UnInit();
SV8rZWJ #endif
M}M. PTL52+}/ //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
X3RpJ#m"' #include "stdafx.h"
D!)'c(b #include "hook.h"
FV:{lC{h~ #include <windowsx.h>
HOu<,9?>Q #ifdef _DEBUG
j:]/AReOL #define new DEBUG_NEW
_=4Dh/Dv #undef THIS_FILE
yfuvU2nVH static char THIS_FILE[] = __FILE__;
o.Q|%&1 #endif
E: XzX Fxx #define MAX_KEY 100
#7gOtP#{ #define CTRLBIT 0x04
7nIg3s% #define ALTBIT 0x02
h}+,]^ #define SHIFTBIT 0x01
J/RUKhs/ #pragma data_seg("shareddata")
QGLfZvTT HHOOK hHook =NULL;
&o:ZOD. UINT nHookCount =0;
Y@#~8\_ static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
eMWY[f3 static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
n;O
3.2 static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
DB%=/ \U static int KeyCount =0;
3(vI{[yhT static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
@c7 On)sy #pragma data_seg()
##R]$-<4dQ HINSTANCE hins;
S/7D}hJ void VerifyWindow();
vbFY} BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
8+gSn //{{AFX_MSG_MAP(CHookApp)
D2?~03c
// NOTE - the ClassWizard will add and remove mapping macros here.
f+L )x // DO NOT EDIT what you see in these blocks of generated code!
\<;/)!Nmw //}}AFX_MSG_MAP
O^sgUT1O END_MESSAGE_MAP()
p&XbXg- "FG6R' CHookApp::CHookApp()
TKj9s'/ {
% J+'7'g // TODO: add construction code here,
^R K[-tVV // Place all significant initialization in InitInstance
3H4p$\;C }
+J.^JXyp0 l2n>Wce9 CHookApp theApp;
I>ofSaN LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
0]i#1Si~@ {
a)`h*P5@ BOOL bProcessed=FALSE;
NaAq^F U if(HC_ACTION==nCode)
|$6GpAq! {
PT>,:zY if((lParam&0xc0000000)==0xc0000000){// Key up
_Se>X= switch(wParam)
&/a/V {
d{9jd{
_#G case VK_MENU:
6,cyi|s MaskBits&=~ALTBIT;
w3,QT}W vY break;
S{fNeK case VK_CONTROL:
c3K(mM: MaskBits&=~CTRLBIT;
l^"gpO${K break;
Kd^
._ case VK_SHIFT:
GAz;4pUZ MaskBits&=~SHIFTBIT;
Q.vtU%T break;
I /> .P default: //judge the key and send message
|@V<}2zCZ break;
>Q"eaJxE!l }
kk^KaD4dA for(int index=0;index<MAX_KEY;index++){
p/SJt0 if(hCallWnd[index]==NULL)
Q,)G_lO continue;
aD%")eP%& if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
X0P<ifIv {
Pm"
,7 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
L;grH5K5 bProcessed=TRUE;
9) mJo( }
#[Ns\%Ri0 }
ZTHrjW1 }
?4gYUEM# else if((lParam&0xc000ffff)==1){ //Key down
1/j}VC switch(wParam)
~e'FPVDn {
Eepy%-\ case VK_MENU:
-C.eXR{s MaskBits|=ALTBIT;
O:k@'& break;
]6}|X#_ case VK_CONTROL:
F<G.!Y8!& MaskBits|=CTRLBIT;
mezP"N=L~ break;
qj=12; case VK_SHIFT:
DQ~+\ MaskBits|=SHIFTBIT;
UI hB break;
cBc6*%ZD default: //judge the key and send message
>&BgF*mm break;
\s+<w3 }
JnPA; 1@/ for(int index=0;index<MAX_KEY;index++)
1.jW^sM {
e$Md?Pq if(hCallWnd[index]==NULL)
HLTz|P0JZ continue;
#Wh"_zpM+ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
gp(w6:w {
}2JSa8 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
*|hICTWL bProcessed=TRUE;
\XmtSfFC }
d4A}BTs1 }
rd. "mG. }
Q:@Y/4= if(!bProcessed){
D|_}~T>;& for(int index=0;index<MAX_KEY;index++){
DF9Br
D0{ if(hCallWnd[index]==NULL)
r ZGA9duy continue;
=cqaA^HQL if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
vhKeW(z SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
D:%$a]_f }
=d(
6
) }
Q_M2!qj }
*>Om3[D return CallNextHookEx( hHook, nCode, wParam, lParam );
>TK`s@jdSV }
[o>/2 ;jI\MZ~l\ BOOL InitHotkey()
jS|(g##4 {
`^|mNh if(hHook!=NULL){
kA\;h|Y3 nHookCount++;
P'Rr5Xa return TRUE;
Ntg#-_] }
0^{zq|%Q! else
kD"dZQx hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
wBCnP if(hHook!=NULL)
f)N67z6 nHookCount++;
sHh2>f@x$ return (hHook!=NULL);
)e]:T4*vo }
:n>:*e@w% BOOL UnInit()
r\_aux^z {
'VR5>r if(nHookCount>1){
dI'C[.zp[ nHookCount--;
e`8z1r return TRUE;
u4fTC})4{C }
vjbot^W9 BOOL unhooked = UnhookWindowsHookEx(hHook);
6U# C
if(unhooked==TRUE){
5C{X$7u nHookCount=0;
0.&gm@A~c$ hHook=NULL;
yTbBYx9Bi }
RwT.B+Onuy return unhooked;
bNIT 1'v }
p4(- r|rV1<d BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
E/AM<eN {
}{E//o:Ta BOOL bAdded=FALSE;
[xM07%: for(int index=0;index<MAX_KEY;index++){
SLZv` if(hCallWnd[index]==0){
qF( ]Ce hCallWnd[index]=hWnd;
vad" N HotKey[index]=cKey;
/"Rh
bE HotKeyMask[index]=cMask;
KasOh"W.P bAdded=TRUE;
+Y 3_)
KeyCount++;
0-FwHDxw break;
xAz gQ }
h
:NHReMT }
A+Z3b:}~ return bAdded;
$W`
&7 }
:GGsQ
n D {>,2hC BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
0Wv9K~F {
Tz%l9aC BOOL bRemoved=FALSE;
,3N8 for(int index=0;index<MAX_KEY;index++){
j>0S3P, if(hCallWnd[index]==hWnd){
/A##Yv!biR if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
8> O'_6Joj hCallWnd[index]=NULL;
TvM{ QGN HotKey[index]=0;
VwtGHF' HotKeyMask[index]=0;
c.jnPVf: bRemoved=TRUE;
t}NxD`8 KeyCount--;
T /[)U
break;
l\MiG Na }
aU#8W.~ }
M(oW;^B }
<2|x]b8 return bRemoved;
5Ko"- }
9DPf2`*$ ~V5k void VerifyWindow()
'[Nu;(>a {
.%~
L for(int i=0;i<MAX_KEY;i++){
dbnH#0i if(hCallWnd
!=NULL){ <8-I:o]mF
if(!IsWindow(hCallWnd)){ 9x{T"'
hCallWnd=NULL; *4A.R&Vu
HotKey=0; `Gsh<.w!7
HotKeyMask=0; t*Lo;]P
KeyCount--; \gIdg:"02
} Xb|hP
} li
NPXS+
} +R#*eo;o7
} Nnv&~D>
,0#OA*0B
BOOL CHookApp::InitInstance() `.[hOQ7
{ GlD@Ud>o)
AFX_MANAGE_STATE(AfxGetStaticModuleState()); nJ2l$J<
hins=AfxGetInstanceHandle(); a$9UUH-|
InitHotkey(); h3O5DP6~
return CWinApp::InitInstance(); i_gS!1Z2
} f_;3|i
%!YsSk,
int CHookApp::ExitInstance() ocL
{ }3)$aI_
VerifyWindow();
KJ'MK~g
UnInit(); HJ_xg6.x
return CWinApp::ExitInstance(); ?A2EuvQH]
} =X% D;2
;Oe6SNquT
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file hM>xe8yE
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) %}$6#5"';
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ |fRajuA;
#if _MSC_VER > 1000 )xTp7YnZ;
#pragma once bh+R9~
#endif // _MSC_VER > 1000 ed\,FWR
A$1pMG~as
class CCaptureDlg : public CDialog Y]P
$|JW):
{ y>wr $
// Construction D8Ni=.ALL
public: I`5MAvP
BOOL bTray; 5Vut4px
BOOL bRegistered; "q]v2t
BOOL RegisterHotkey(); u45e>F=
UCHAR cKey; V|b?H6Q
UCHAR cMask; \a|gzC1G
void DeleteIcon(); 2.; OHQTE
void AddIcon(); ZO0_:T#Z
UINT nCount; _KD(V2W
void SaveBmp(); ijoR(R^r
CCaptureDlg(CWnd* pParent = NULL); // standard constructor +86\&y)
// Dialog Data .:<c[EJ
b
//{{AFX_DATA(CCaptureDlg) dcXtT3,kpX
enum { IDD = IDD_CAPTURE_DIALOG }; JziMjR
CComboBox m_Key; U/jJ@8
BOOL m_bControl; +cjNA2@
BOOL m_bAlt; u&pLF%'EQ
BOOL m_bShift;
pRt )B`#
CString m_Path; :_^9.`
CString m_Number; %J+$p\c
//}}AFX_DATA "gK2!N|#
// ClassWizard generated virtual function overrides YZ*Si3L
//{{AFX_VIRTUAL(CCaptureDlg) q$EVd9aN
public: q8[Nr3.
virtual BOOL PreTranslateMessage(MSG* pMsg); xES+m/?KlZ
protected: 6EPC$*Xp!
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support drb_GT
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); #uey1I@"9
//}}AFX_VIRTUAL &,KxtlR![
// Implementation ;39{iU.m
protected: CWC*bkd5a
HICON m_hIcon; UbMcXH8=F
// Generated message map functions xFyMg&
//{{AFX_MSG(CCaptureDlg) !q7M+j4
virtual BOOL OnInitDialog(); li; P,kg$
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); )Hev-C"
afx_msg void OnPaint(); IXzad
afx_msg HCURSOR OnQueryDragIcon(); ,QKG$F
virtual void OnCancel(); [3/P
EDkw
afx_msg void OnAbout(); YK}(VF?&
afx_msg void OnBrowse(); Qt@~y'O
afx_msg void OnChange(); nq6]?ZJ
//}}AFX_MSG lXB_HDY
DECLARE_MESSAGE_MAP() Tri.>@-u
}; L;BYPZR
#endif /~AwX8X
IM
+Dm
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file VN$#y4
#include "stdafx.h" @br%:Nt
#include "Capture.h" QjQJ "
#include "CaptureDlg.h" sPd5f2'
#include <windowsx.h> gHox{*hb[
#pragma comment(lib,"hook.lib") mZq*o<kTA
#ifdef _DEBUG =8tduB
#define new DEBUG_NEW W^yF5
#undef THIS_FILE L`"cu.l
static char THIS_FILE[] = __FILE__; OgOu$.
#endif t^h>~o'\
#define IDM_SHELL WM_USER+1 VfZ/SByh7p
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); 2\s-4H|
q
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); <@zOdW|{:
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; 5dL-v&W
class CAboutDlg : public CDialog +<3tv&"
{ ]B5\S
public: O+'Pq,hn
CAboutDlg(); @aj"12
// Dialog Data 5_`.9@eh.
//{{AFX_DATA(CAboutDlg) /&kTVuN"(
enum { IDD = IDD_ABOUTBOX }; ,'ndQ{\9
//}}AFX_DATA XeZv%` ?
// ClassWizard generated virtual function overrides ?G8 D6
//{{AFX_VIRTUAL(CAboutDlg) [{Y$]3?}
protected: KNK0w 5
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support ("{AY?{{
//}}AFX_VIRTUAL 1TbKnmTx
// Implementation Xf#;GYO|2
protected: LW2Sko?Yo
//{{AFX_MSG(CAboutDlg) ,xR^8G8
//}}AFX_MSG />$)o7U`+
DECLARE_MESSAGE_MAP() hW|t~|j#_
}; _xmM~q[c7p
'nCBLc8
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) .Qi`5C:U
{ D/{-
//{{AFX_DATA_INIT(CAboutDlg) R'9TD=qEK
//}}AFX_DATA_INIT L8ZCGW\Rr
} .#+rH}=Z
?=PQQx2_*u
void CAboutDlg::DoDataExchange(CDataExchange* pDX) i\`[0dfY
{ 0~FX!1;
CDialog::DoDataExchange(pDX); rj:$'m7
//{{AFX_DATA_MAP(CAboutDlg) ;>CmVC'/
//}}AFX_DATA_MAP "ENgu/A!
} <:%Iq13D
YJ:CqTy
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) Duz}e80
//{{AFX_MSG_MAP(CAboutDlg) >iG`
// No message handlers 2+Fq'!
//}}AFX_MSG_MAP >\@6i
s
END_MESSAGE_MAP() gbI0?G6XN/
C6/,-?%)
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) x^C,xP[#Y;
: CDialog(CCaptureDlg::IDD, pParent) @c{Z?>dUc#
{ 31bKgU{
//{{AFX_DATA_INIT(CCaptureDlg) "@Te!.~A.
m_bControl = FALSE; k_y@vW3
m_bAlt = FALSE; {&2$1p/9'
m_bShift = FALSE; O:u^jcXA
m_Path = _T("c:\\"); <89js87
m_Number = _T("0 picture captured."); \x|(`;{
nCount=0; g/Qr]:;
bRegistered=FALSE; )W c#?K
bTray=FALSE; kmP0gT{Sj
//}}AFX_DATA_INIT 0TVO'$Gvi
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 H9 't;Do
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); l+T\DZ
} %GHHnf%2Z
`T~M:\^D
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) 6}<PBl%qe
{ ['sIR+c%'O
CDialog::DoDataExchange(pDX); t(ZiQ<A
//{{AFX_DATA_MAP(CCaptureDlg) }~A-ELe:
DDX_Control(pDX, IDC_KEY, m_Key); A70_hhP
DDX_Check(pDX, IDC_CONTROL, m_bControl); (xxJ^u>QC
DDX_Check(pDX, IDC_ALT, m_bAlt); xorFz{
DDX_Check(pDX, IDC_SHIFT, m_bShift); S'?XI@t[
DDX_Text(pDX, IDC_PATH, m_Path); Z0-W%W
DDX_Text(pDX, IDC_NUMBER, m_Number); ,a?em'=
//}}AFX_DATA_MAP WQ6E8t)
} bggSYhJ?\#
d;'@4NX5+
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) c| p
eRO.
//{{AFX_MSG_MAP(CCaptureDlg) ;GvyL>|-~
ON_WM_SYSCOMMAND() d;dcLe
ON_WM_PAINT() "e(OO/EZS
ON_WM_QUERYDRAGICON() ss-Be
ON_BN_CLICKED(ID_ABOUT, OnAbout) Q[g%((DL
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) @gTpiV2
ON_BN_CLICKED(ID_CHANGE, OnChange) pX!S*(Q{
//}}AFX_MSG_MAP ;jnnCXp>
END_MESSAGE_MAP() g3Ff<P P
/n:s9eq
BOOL CCaptureDlg::OnInitDialog() > m5j.GP;
{ /#Ew{RvW'
CDialog::OnInitDialog(); !7}5"j
;A
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); Oys.8%+ P
ASSERT(IDM_ABOUTBOX < 0xF000); J .El&Dev
CMenu* pSysMenu = GetSystemMenu(FALSE); -;Hd_ ~O>j
if (pSysMenu != NULL) hDz_BvE
{ m2 N
?Fg
CString strAboutMenu; ,Cx5(
~kU
strAboutMenu.LoadString(IDS_ABOUTBOX); 2-{8+*_'
if (!strAboutMenu.IsEmpty()) fHwh6|
{ ;9;.!4g/T
pSysMenu->AppendMenu(MF_SEPARATOR); [KCh,'&
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); (:@qn+
a
} 2{{M{#}S.
} iVmf/N@A|
SetIcon(m_hIcon, TRUE); // Set big icon f2yc]I<lr~
SetIcon(m_hIcon, FALSE); // Set small icon b7"pm)6
m_Key.SetCurSel(0); SHhg&~B
RegisterHotkey(); A
#ZaXu/:X
CMenu* pMenu=GetSystemMenu(FALSE); *d(wOl5[
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); a{]1H4+bQ
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); hBN!!a|l
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); Iy e
return TRUE; // return TRUE unless you set the focus to a control `~*qjA
} ?VReKv1\
f^0vkWI2
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) }3N8EmS
{ lOZ.{0{f,
if ((nID & 0xFFF0) == IDM_ABOUTBOX) A0&~U0*(~
{ V+(
CAboutDlg dlgAbout; )_+#yaC
dlgAbout.DoModal(); c) 1m4SB@
} '+-R 7#
else yqCy`TK8
{ y.mojx%?a
CDialog::OnSysCommand(nID, lParam); %f,
9
} S0"OU0`N
} ts)0+x
e6{/e+/R
void CCaptureDlg::OnPaint() VsUEp_I
{ '!En,*'IS
if (IsIconic()) "jAV7lP
{ S
_# UEf
CPaintDC dc(this); // device context for painting lt(,/
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); (|bht 0
// Center icon in client rectangle zW+Y{^hf
int cxIcon = GetSystemMetrics(SM_CXICON); J$'T2@H#
int cyIcon = GetSystemMetrics(SM_CYICON); AKL~F|t
CRect rect; 7tfFRUw
GetClientRect(&rect); pk"JcUzR
int x = (rect.Width() - cxIcon + 1) / 2; @*_#zU#g
int y = (rect.Height() - cyIcon + 1) / 2; h=)Im)
// Draw the icon 0MPsF{Xw[
dc.DrawIcon(x, y, m_hIcon); ]=h
Ts%]w
} A6#ob
else >"ZTyrK
{ +Mg^u-(A
CDialog::OnPaint(); <pi q?:ac
} l65'EO|
} ]4hXK!^Uu
=Jem.Ph
HCURSOR CCaptureDlg::OnQueryDragIcon() l<v/T
{ G::6?+S
return (HCURSOR) m_hIcon; g]jtVQH']
} kqHh@]Z0'
Zwq
uS9
void CCaptureDlg::OnCancel() PqvwM2}4
{ $aGK8%.O
if(bTray) 5%G++oLXf
DeleteIcon(); $\a;?>WA"
CDialog::OnCancel(); Bt.W_p
} tD>m%1'&
q9Fc0(&Vf
void CCaptureDlg::OnAbout() ")Bf^DV
{ }rGDM
CAboutDlg dlg; sU{+.k{
dlg.DoModal(); Up/1c:<J
} uw]e$,x?
PQf FpmG
void CCaptureDlg::OnBrowse() L@G)K
{ SHwl^qVk[
CString str; q2,@>#
BROWSEINFO bi; : l]>nF4
char name[MAX_PATH]; ?g<*1N?:
ZeroMemory(&bi,sizeof(BROWSEINFO)); '#q"u y
bi.hwndOwner=GetSafeHwnd(); g"zk14'
bi.pszDisplayName=name; $SXF>n{}
bi.lpszTitle="Select folder"; Ke,-8e#Q
bi.ulFlags=BIF_RETURNONLYFSDIRS; Oq! u `g9
LPITEMIDLIST idl=SHBrowseForFolder(&bi); MTqbQ69v
if(idl==NULL) %DRDe
return; Ppx*
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); 5[*MT%ms
str.ReleaseBuffer(); w.0.||C
O
m_Path=str; l~f +h?cF
if(str.GetAt(str.GetLength()-1)!='\\') t`DUY3>36
m_Path+="\\"; f \4Qp
UpdateData(FALSE); N ~LR
} gR?3)m
JWxPH5L
void CCaptureDlg::SaveBmp() 8YYY *>
{ KY_qK)H
CDC dc; .h*&$c/l
dc.CreateDC("DISPLAY",NULL,NULL,NULL); ` D4J9;|;]
CBitmap bm; SX
FF
int Width=GetSystemMetrics(SM_CXSCREEN); <v{jJ7w
int Height=GetSystemMetrics(SM_CYSCREEN); ,lN!XP{M6w
bm.CreateCompatibleBitmap(&dc,Width,Height); O|gb{
CDC tdc; /CZOO)n
tdc.CreateCompatibleDC(&dc); Pu*st=KGB
CBitmap*pOld=tdc.SelectObject(&bm); h[B
Ft{x
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); J(l6(+8
tdc.SelectObject(pOld); @MN>ye'T
BITMAP btm; 06=eA0JI
bm.GetBitmap(&btm); c85B-/
DWORD size=btm.bmWidthBytes*btm.bmHeight; W]y$6P
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); otPEJ^W&
BITMAPINFOHEADER bih; ,U<Ku*}B
bih.biBitCount=btm.bmBitsPixel; AJmS1 B
bih.biClrImportant=0; (/hF~A
bih.biClrUsed=0; eueXklpg+
bih.biCompression=0; mCq*@1Lp9
bih.biHeight=btm.bmHeight; ? th+~dE
bih.biPlanes=1; - '8|D!>v2
bih.biSize=sizeof(BITMAPINFOHEADER); uAJ_`o[
bih.biSizeImage=size;
2QBtwlQ?[
bih.biWidth=btm.bmWidth; g@j:TQM_0
bih.biXPelsPerMeter=0; \64(`6>
bih.biYPelsPerMeter=0; 2_Pe/
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); 'ugG^2Y
static int filecount=0; W C`1;(#G
CString name; 4Uwt--KtFh
name.Format("pict%04d.bmp",filecount++); (+Uo;)~!YC
name=m_Path+name; o/&:w z
BITMAPFILEHEADER bfh; r[\47cG
bfh.bfReserved1=bfh.bfReserved2=0; 3@}_ F<"*
bfh.bfType=((WORD)('M'<< 8)|'B'); c=|
a \\
bfh.bfSize=54+size; cb
UVeh7Q
bfh.bfOffBits=54; +bQn2PG=
CFile bf; =h&^X>!
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ Q!|71{5U
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); /
Sp+MB9
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); pkM32v-
bf.WriteHuge(lpData,size); !BQ!]u
bf.Close(); ;eA~z"g
nCount++; j}ruXg
} vhUuf+P*
GlobalFreePtr(lpData); ||_F
/AD
if(nCount==1) w{UU(
m_Number.Format("%d picture captured.",nCount); (m,O!935f
else i:zA(
m_Number.Format("%d pictures captured.",nCount); *&AK.n_
UpdateData(FALSE); 1w5p*U0 ;
} &GbCJ
=]Ek12.
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) q$HBPR4h
{ Rd#,Tl\
if(pMsg -> message == WM_KEYDOWN) i>w>UA*t
{ +oiPj3
if(pMsg -> wParam == VK_ESCAPE) X0C\87xfG
return TRUE; #u2PAZ@qd
if(pMsg -> wParam == VK_RETURN) "<.b=mN-
return TRUE; dYO87n
} ry
U0x
return CDialog::PreTranslateMessage(pMsg); %?
iE3j!q
} ___+5r21\
XBeHyQp
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) mV'd9(s?
{ SE/@ li
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ +~[19'GH
SaveBmp(); <4>6k7W
return FALSE; 5N[Y2
} M.l;!U!}
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ Ao]F_hZ
CMenu pop; e~}+.B0
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); ^7_<rs
CMenu*pMenu=pop.GetSubMenu(0); 'i@Y #F%D
pMenu->SetDefaultItem(ID_EXITICON); Fm2t:,=
CPoint pt; f.8L<<5 c
GetCursorPos(&pt); @r
.K>+1
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); OrRve$U*|
if(id==ID_EXITICON) g xLA1]>{
DeleteIcon(); "+AeqrYYm5
else if(id==ID_EXIT) {uhw ^)v
OnCancel(); R2;-WxnN]
return FALSE; ~7Jc;y&
} @cXY"hP`
LRESULT res= CDialog::WindowProc(message, wParam, lParam); 0Ifd!
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) T*H4kM
AddIcon(); 66BsUA.h
return res; '~a!~F~>
} ; aMMIp
WFh!re%Z
void CCaptureDlg::AddIcon() |epe;/
{ r<0.!j%c
NOTIFYICONDATA data; zPVA6~|l
data.cbSize=sizeof(NOTIFYICONDATA); N
.SszZh
CString tip; Nd( $s[
tip.LoadString(IDS_ICONTIP); BE m%x0y
data.hIcon=GetIcon(0); <vj&e(D^
data.hWnd=GetSafeHwnd(); I
4EocM=
strcpy(data.szTip,tip); g:*yjj
data.uCallbackMessage=IDM_SHELL; AU7c =
H:?
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; [PU.lRq
data.uID=98; 7%F9.h
Shell_NotifyIcon(NIM_ADD,&data); $AX!L+<!
ShowWindow(SW_HIDE); u4Xrvfb,
bTray=TRUE; ZBnf?fU
} 1f~DUku=
2R1W[,Ga!
void CCaptureDlg::DeleteIcon() +-{HT+W
{ K3@UoR
NOTIFYICONDATA data; lw Kr$X4
data.cbSize=sizeof(NOTIFYICONDATA); ME7JU|@Z
data.hWnd=GetSafeHwnd(); D)mqe-%1
data.uID=98; '7xY,IY
Shell_NotifyIcon(NIM_DELETE,&data); .vb*|So
ShowWindow(SW_SHOW); Q"(i
SetForegroundWindow(); yX)2
hj:s
ShowWindow(SW_SHOWNORMAL); x2nNkd0h
bTray=FALSE; LS \4y&J40
} _Fer-nQ2R
au#IA
void CCaptureDlg::OnChange() M9i u#6P
{ Ml)WY#7
RegisterHotkey(); q_I ''L
} S[%86(,*gP
~+|p.(I
BOOL CCaptureDlg::RegisterHotkey() cy? EX~s4
{ !!P)r1=g
UpdateData(); 3L;)asF
UCHAR mask=0; %i96@6O
UCHAR key=0; |M+ !O93
if(m_bControl) K~Xt`
mask|=4; q,m6$\g4
if(m_bAlt) l~\'Z2op
mask|=2; `zTVup&
if(m_bShift) i|2Q}$3t2
mask|=1; YoahqXR`
key=Key_Table[m_Key.GetCurSel()]; ` bg{\ .q
if(bRegistered){ 6T)D6;@L
DeleteHotkey(GetSafeHwnd(),cKey,cMask); KBOxr5w
bRegistered=FALSE; 2'/ ip@
} qUVV374N
cMask=mask; {=&