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:
bo]xah|."j
&/K:zWk3mx 一、实现方法
7X\azL !&f(Xs 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:
vYT%e:8)q Nqih LUv #pragma data_seg("shareddata")
E'|@hL-jn HHOOK hHook =NULL; //钩子句柄
X2avo|6e UINT nHookCount =0; //挂接的程序数目
k 7 !{p static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
H-&Z+4 +Xs static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
E;[ANy4L static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
V2< 4~J2:9 static int KeyCount =0;
m_{?py@tZ static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
. zM #pragma data_seg()
dgb#PxOMH Ho3$T 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。
'Xl[ y ,L iX 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:
1
J3h_z6/ gv7(-I BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
i
*W9 4 cKey,UCHAR cMask)
8*sZ/N. {
$O}:*.{(W BOOL bAdded=FALSE;
+b<q4W for(int index=0;index<MAX_KEY;index++){
;t'~ if(hCallWnd[index]==0){
3B }Oy$p hCallWnd[index]=hWnd;
,uEi*s> HotKey[index]=cKey;
o.qeF4\d6 HotKeyMask[index]=cMask;
<k2Qcicy bAdded=TRUE;
2=X\G~a KeyCount++;
?NV3]vl break;
~-r*2bR }
jD@KG }
y#[PQT return bAdded;
obUX7N }
cN/8b0C //删除热键
cTy;?(E BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
zD>:Kj5 {
7x
*] BOOL bRemoved=FALSE;
!<psK[ for(int index=0;index<MAX_KEY;index++){
o<\CA[
if(hCallWnd[index]==hWnd){
TCW[;d if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
[cSoo+Mlx hCallWnd[index]=NULL;
Vx1xULdY HotKey[index]=0;
}"?v=9.G HotKeyMask[index]=0;
Isa]5> bRemoved=TRUE;
*ujn+0)[ KeyCount--;
-rYOx9P4 break;
*,w9#?2x }
'je=.{[lWt }
tx=~bm"*? }
wO6`Ap
t1: return bRemoved;
Etk`>,]Y>y }
^rd]qii" &%QtUPvr9 B dHLow DLL中的钩子函数如下:
&5fM8Opkd vi+k#KE LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
92}UP=RW! {
VH&6Tm1 BOOL bProcessed=FALSE;
V,=V if(HC_ACTION==nCode)
$7q'Be@{ {
\IZfp=On if((lParam&0xc0000000)==0xc0000000){// 有键松开
K2J DG.< switch(wParam)
Xne{:!btw {
KsZXdM/ case VK_MENU:
@/6cEiC+r\ MaskBits&=~ALTBIT;
p9*#{~ break;
jPG&Ypm1 case VK_CONTROL:
p #:.,; MaskBits&=~CTRLBIT;
ps:|YR break;
v#EXlpS case VK_SHIFT:
=i jGB~ MaskBits&=~SHIFTBIT;
r"s
<; break;
$i@~$m7d- default: //judge the key and send message
s'yA^
VPf break;
2"
(vjnfH }
] -O/{FIv for(int index=0;index<MAX_KEY;index++){
xviz{M9g if(hCallWnd[index]==NULL)
ejYJOTT{^ continue;
ADoxma@ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
w{$t:l)2, {
HbWl:y U SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
D{~mJDUzK bProcessed=TRUE;
T7eo_Mn }
B|#*I[4`w@ }
a%2r]:?^? }
K-VNU else if((lParam&0xc000ffff)==1){ //有键按下
Yc+0OBH[ switch(wParam)
#`P4s>IL1 {
y>zPsc, case VK_MENU:
mZ9+.lm MaskBits|=ALTBIT;
!Kv.v7'N/k break;
yQ)y#5/<6 case VK_CONTROL:
$Bd{Y"P@6 MaskBits|=CTRLBIT;
9)={p9FZY break;
I>X _j) case VK_SHIFT:
j'lfH6_')e MaskBits|=SHIFTBIT;
v%t "N break;
$N[-ks2{@ default: //judge the key and send message
q|)8VmVV break;
kJP
fL s }
]Y!$HT7\ for(int index=0;index<MAX_KEY;index++){
Jt6~L5[_s if(hCallWnd[index]==NULL)
X5kIM\ continue;
W2Y%PD9a if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
XjpFJ#T*$A {
e6{}hiM SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
1X\dH<B} bProcessed=TRUE;
6yZfV7I }
U#v??Sl }
[bH5UTA }
j>s>i if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
X^4HYm for(int index=0;index<MAX_KEY;index++){
M|e
Qds if(hCallWnd[index]==NULL)
Qn>0s continue;
(I~-mzu\ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
{4"!~W SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
)cc:Z7p //lParam的意义可看MSDN中WM_KEYDOWN部分
:4|W;Lkd! }
[4,=%ez }
y~_wr}.CS }
2T!pFcc return CallNextHookEx( hHook, nCode, wParam, lParam );
&-#!]T-P:E }
e=KA|"vxh Y>z~0$ 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:
kDuN3 il=y m BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
F0
WM&{v BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
A$G>D3 &CW,qY,sh 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
) &[S*g l v]TE" LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
!K;\{/8 {
i,>yIPBU! if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
!%n3_tZC {
|<&9_Aq_ //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
[>xwwm SaveBmp();
w4Nm4To return FALSE;
[ h7nOUL! }
CSx V^ …… //其它处理及默认处理
U1<EAGo| }
]v7f9MC'\ +Ze HZjd 'Dyt"wfo 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
?<c)r~9] Y9fktg. 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
#N\kMJl$l \nM$qr'`B 二、编程步骤
6jFc' CqQ>"Y 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
o9+"6V|. 4bD^Kc4\ 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
x_lCagRGC4 D{YAEG 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
]Ga }+^ SBo>\<@ 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
-d?9Acd T-pes1Wu 5、 添加代码,编译运行程序。
v5U\E`)s 5tI4m#y2 三、程序代码
x j~/C5@ ! 9B| ` ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
D. !m*oq #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
4;@|tC|u #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
iD=VNf #if _MSC_VER > 1000
v[VUX69 #pragma once
*Iv.W7 [ #endif // _MSC_VER > 1000
Gv(bD6Rz #ifndef __AFXWIN_H__
Gqvnc8V& #error include 'stdafx.h' before including this file for PCH
JFe %W?}.D #endif
wb^Yg9 #include "resource.h" // main symbols
^Nl)ocHv! class CHookApp : public CWinApp
*het_;)+{ {
qB-9&X public:
cwiHHf> CHookApp();
;=piJ%k // Overrides
46c7f*1l // ClassWizard generated virtual function overrides
BU-+L}-48 //{{AFX_VIRTUAL(CHookApp)
ZzET8?8 public:
S\2QZ[u
virtual BOOL InitInstance();
txM R[o_ virtual int ExitInstance();
&RQQVki3 //}}AFX_VIRTUAL
%''z~LzJ8 //{{AFX_MSG(CHookApp)
rug^_d =B // NOTE - the ClassWizard will add and remove member functions here.
dj,7lJy // DO NOT EDIT what you see in these blocks of generated code !
o, e y. //}}AFX_MSG
(u`[I4z` DECLARE_MESSAGE_MAP()
gzDH~'8W };
hXr`S4aJ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
e6n1/TtqM BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
~_v?M%5i BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
(.TkvUj` BOOL InitHotkey();
-#srn1A> BOOL UnInit();
tX)l$oRPr #endif
b6%T[B B sdP% Y<eAT //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
MkJ}dncg* #include "stdafx.h"
/MHqt=jP6 #include "hook.h"
[v$_BS#u^3 #include <windowsx.h>
Am=D kkP% #ifdef _DEBUG
v%c r #define new DEBUG_NEW
O8#}2 #undef THIS_FILE
|/K+tH static char THIS_FILE[] = __FILE__;
idiJ|2T"G #endif
<1#v}epD# #define MAX_KEY 100
JF7n|o-`? #define CTRLBIT 0x04
;!U`GN,tH #define ALTBIT 0x02
Z'c{4b`N #define SHIFTBIT 0x01
%Hdg,NH #pragma data_seg("shareddata")
z[:UPPbW HHOOK hHook =NULL;
;n?72&h
UINT nHookCount =0;
lk8g2H
, static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
g`~c|bx static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
lN94 b3_W static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
f&=y\uP] static int KeyCount =0;
OMG.64DX . static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
p-n_
">7 #pragma data_seg()
Pk444_"= HINSTANCE hins;
D)z'FOaI void VerifyWindow();
Yjxa=CD BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
R~u0! //{{AFX_MSG_MAP(CHookApp)
DArEIt6Q // NOTE - the ClassWizard will add and remove mapping macros here.
G4g<PFx // DO NOT EDIT what you see in these blocks of generated code!
K%9PIqK?4 //}}AFX_MSG_MAP
?Pz:H/$ END_MESSAGE_MAP()
pjr,X+6o %jEdgD%xV CHookApp::CHookApp()
}5dYmny {
:_v/a+\n // TODO: add construction code here,
SpbOvY=> // Place all significant initialization in InitInstance
N\b%+vR }
[AE-~+m)^ ypEcjVPD CHookApp theApp;
AkdONKO8{ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
Ijq',@jE {
H|>dF)%pj BOOL bProcessed=FALSE;
q)R&npP7 if(HC_ACTION==nCode)
`[\*1GpAo {
NyU~8?bp if((lParam&0xc0000000)==0xc0000000){// Key up
#UGtYD}" switch(wParam)
a.)Gd]}g {
lO},fM2j case VK_MENU:
TA; MaskBits&=~ALTBIT;
8mTjf Br break;
\[&`PD case VK_CONTROL:
<(x[Qp/5P MaskBits&=~CTRLBIT;
1c);![O break;
~5$V8yfx h case VK_SHIFT:
)qs>Z?7 MaskBits&=~SHIFTBIT;
X~XpX7d! break;
4"72 default: //judge the key and send message
Z\8TpwD2 break;
-E~pCN(E }
a>A29*q for(int index=0;index<MAX_KEY;index++){
F-Mf~+=Dn if(hCallWnd[index]==NULL)
B:qH7`s continue;
HrQBzS if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
\YO1 ;\W {
j48cI3C SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
hEAt4z0P bProcessed=TRUE;
,aS6|~ac4 }
%!$ua_8 }
>-rDBk
;K }
)M(; :#le else if((lParam&0xc000ffff)==1){ //Key down
c;DWSgIw switch(wParam)
'J~{8w,. {
C;2!c case VK_MENU:
@$'k1f(u> MaskBits|=ALTBIT;
?H8w/{J break;
QCkPua9 case VK_CONTROL:
p]=a:kd4J MaskBits|=CTRLBIT;
,Zs:e. break;
GKdQ case VK_SHIFT:
vy W/f MaskBits|=SHIFTBIT;
1zNH[
break;
9ui_/[K default: //judge the key and send message
MB|+F break;
nTO,d$!Kp }
4$9WJ~V{ for(int index=0;index<MAX_KEY;index++)
-1t"(v {
xZAc~~9tD if(hCallWnd[index]==NULL)
B0I(/ 7 continue;
6wH]W+A if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
9?<WRM3a> {
=N,9#o6^ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
mKY}+21!Q bProcessed=TRUE;
YCod\} 3 }
>0kn&pe7#T }
hX4&B }
^n#6CW*n if(!bProcessed){
cn (-{dCXM for(int index=0;index<MAX_KEY;index++){
S'T&`"Mr if(hCallWnd[index]==NULL)
Cv{>|g# continue;
0g% `L_e_ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
B6&PYMFK?* SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
^qXc%hj g }
B[jCe5!w }
oiYI$ql3L }
UD1R_bL} return CallNextHookEx( hHook, nCode, wParam, lParam );
~oO>6 }
x zmg'Br eqD|3YX BOOL InitHotkey()
*( ~7H6 {
9%aBW7@SK if(hHook!=NULL){
A&_H%]{<: nHookCount++;
AcV 2l return TRUE;
'Ba Ba= }
d`9%:2qE else
+{Yd\{9 hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
; V)pXLE if(hHook!=NULL)
]pi"M3f_ nHookCount++;
\C;cs&\Q return (hHook!=NULL);
igFz~ }
]5W|^% BOOL UnInit()
+[C(hhk(" {
2lNZwV7 if(nHookCount>1){
) jBPt& nHookCount--;
?&?gQ#\N_J return TRUE;
Hq'mv_}qG }
P)x&9OHV BOOL unhooked = UnhookWindowsHookEx(hHook);
qP? V{N if(unhooked==TRUE){
@{16j#'R nHookCount=0;
RWM9cV5 hHook=NULL;
b*w izd }
3>X]`Oj7y return unhooked;
kBZnR$Cl }
ZN75ONL KEF"`VTB@ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
KSsv~!3Yf {
jA@js v BOOL bAdded=FALSE;
&u)
R+7bl, for(int index=0;index<MAX_KEY;index++){
#&zNYzI if(hCallWnd[index]==0){
}gw
\w?/ hCallWnd[index]=hWnd;
k?-GI[@X HotKey[index]=cKey;
WK;X6` HotKeyMask[index]=cMask;
?v8.3EE1\o bAdded=TRUE;
$g? ]9}p KeyCount++;
:D(4HXHK% break;
le1 }
h:{rjXK
}
C-Y~T;53 return bAdded;
@H%)!f]zWt }
`)e5pK
hUy"XXpr BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
82ay("ZY {
HD^ Ou5YB BOOL bRemoved=FALSE;
f5p>oXo4b for(int index=0;index<MAX_KEY;index++){
Pi|WOE2 if(hCallWnd[index]==hWnd){
;"/[gFD5u if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
C+\c(M a hCallWnd[index]=NULL;
K,f*}1$qM HotKey[index]=0;
M*ZR+pq, HotKeyMask[index]=0;
)`;Q]?D bRemoved=TRUE;
c^ $_epc* KeyCount--;
rN0G| break;
x'dU[f( }
;!H<W[ }
R+vago: }
i*-[-hn-V return bRemoved;
~,j52obR6Z }
T](N
^P }6zo1" void VerifyWindow()
J^t-p U {
UQZ<sp4v; for(int i=0;i<MAX_KEY;i++){
CJ+/j=i;~c if(hCallWnd
!=NULL){ iZsZSW \
if(!IsWindow(hCallWnd)){ ^e*Tg&
hCallWnd=NULL; L9(mY `d>"
HotKey=0; cE(P^;7D
HotKeyMask=0; 9i+OYWUO
KeyCount--; Cq mtO?vne
} LIzdP,^pc
} (I(?oCQ
} 6&jW.G8/
} y.h2hv]Bc
7.V'T=@x3)
BOOL CHookApp::InitInstance() o<
)"\f/,
{ 9g%1^$R
AFX_MANAGE_STATE(AfxGetStaticModuleState()); 4^4<Le-G
hins=AfxGetInstanceHandle(); Udj!y$?
InitHotkey(); KZ8Hp=s
return CWinApp::InitInstance(); 3<Qe'd
^
} NXwthc3
\YXzq<7
int CHookApp::ExitInstance() Vl"20):
{ <%d/"XNg[D
VerifyWindow(); |"}F cS
y
UnInit(); Vf28R,~m
return CWinApp::ExitInstance(); c~1+5&
} 0PfjD
B49:
R>
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file 6-"@j@l5<
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) Vr/UY79
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ (2 nSZRB
#if _MSC_VER > 1000 EI+RF{IKh
#pragma once Ep>} S
#endif // _MSC_VER > 1000 =rL%P~0wq
W4MU^``
class CCaptureDlg : public CDialog `<Ry_}V
{ EJAk'L+nuH
// Construction S F:>dneB
public: Ax"]+pb
BOOL bTray; q!L@9&KAQ
BOOL bRegistered; <Zb~tYp
BOOL RegisterHotkey(); S10"yhn(-t
UCHAR cKey; V47z;oMXct
UCHAR cMask; TH[xSg
void DeleteIcon(); AW{"9f4
void AddIcon(); .wH`9aq;5@
UINT nCount; <'y}y}%
void SaveBmp(); rdQKzJiX=U
CCaptureDlg(CWnd* pParent = NULL); // standard constructor xh6Yv%\@
// Dialog Data 0^lCZ,uq;
//{{AFX_DATA(CCaptureDlg) 38<Z=#S
enum { IDD = IDD_CAPTURE_DIALOG }; K_SURTys
CComboBox m_Key; 3@}rO~
BOOL m_bControl; z D "n7;
BOOL m_bAlt; qdW"g$fW
BOOL m_bShift; *'i9
CString m_Path; e4h9rF{Cxn
CString m_Number; ey/{Z<D
//}}AFX_DATA _%R]TlL
// ClassWizard generated virtual function overrides {l0[`"EF
//{{AFX_VIRTUAL(CCaptureDlg) :P'M|U
public: 1hTE^\W
virtual BOOL PreTranslateMessage(MSG* pMsg); 1]&FB{l
protected: 5>Kk>[|.
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support }Quk n
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); &':Ecmo~`
//}}AFX_VIRTUAL $@Bd}35 J
// Implementation -v@LJCK7I
protected: 2gasH11M
HICON m_hIcon; *\$m1g7b
// Generated message map functions C%RYQpY*c
//{{AFX_MSG(CCaptureDlg) !B*l'OJw
virtual BOOL OnInitDialog(); +nAbcBJAl
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); o;kxu(>yL'
afx_msg void OnPaint(); i! <1&{
afx_msg HCURSOR OnQueryDragIcon(); !VDNqW
virtual void OnCancel(); -P6Z[V%
afx_msg void OnAbout(); -){aBMOv3
afx_msg void OnBrowse(); J@}PBHK+
afx_msg void OnChange(); 0s$;3qE
//}}AFX_MSG <u_vL
WS
DECLARE_MESSAGE_MAP() TSKT6_IJw
}; dug^o c1
#endif z7X,5[P
m7#v2:OD+
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file e,K.bgi
#include "stdafx.h" d1qvS@
#include "Capture.h" 4'~zuUs
#include "CaptureDlg.h" xYd]|y
#include <windowsx.h> btR~LJb
#pragma comment(lib,"hook.lib") pw.K,?kYr
#ifdef _DEBUG iJU=98q
#define new DEBUG_NEW f2LiCe.?
#undef THIS_FILE koojF|H>
static char THIS_FILE[] = __FILE__; +RBX2$kB
#endif le|Rhs%Z%
#define IDM_SHELL WM_USER+1 +HT?>k
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); H$ZLtPv5
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); 91#rP|88;
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; ;5p;i8m
class CAboutDlg : public CDialog dW5@Z-9
{ ,;@vVm'}
public: FP<mFqy
CAboutDlg(); 1/3<u::
// Dialog Data : Tcvj5
//{{AFX_DATA(CAboutDlg) BUs={"Pa
enum { IDD = IDD_ABOUTBOX }; kBeYl+*pk
//}}AFX_DATA Z mc"
// ClassWizard generated virtual function overrides 3\ {?L
//{{AFX_VIRTUAL(CAboutDlg) O=5q<7PM.
protected: ;#?G2AAv
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support hiKyU!)Hv
//}}AFX_VIRTUAL (fun,(R6"
// Implementation fZiwuq!_
protected: wnU-5r&!]
//{{AFX_MSG(CAboutDlg) JfsvK2I
//}}AFX_MSG \0veld
DECLARE_MESSAGE_MAP() ]!X[[w)
}; Sby(?yg
dK Qu
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) AM0CIRX$
{ 6_L<&RmLg
//{{AFX_DATA_INIT(CAboutDlg) ^WkqRs
//}}AFX_DATA_INIT nB;[;dCz
} &+]-e;[
/# d^
void CAboutDlg::DoDataExchange(CDataExchange* pDX) 9$#@Oe8*
{ w
m|WER*.
CDialog::DoDataExchange(pDX); YTD&swk
//{{AFX_DATA_MAP(CAboutDlg) z"c,TlVN3
//}}AFX_DATA_MAP 4YSVy2x
} YU`}T<;bg
!l-Q.=yw
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) IP
//{{AFX_MSG_MAP(CAboutDlg) ,MjlA{0
// No message handlers c'INmc
I|
//}}AFX_MSG_MAP MCAWn
H
END_MESSAGE_MAP() DkEf;P
0|DyYu
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) fcTg/EXn
: CDialog(CCaptureDlg::IDD, pParent) &u!MI
{ -asjBSo*D
//{{AFX_DATA_INIT(CCaptureDlg) H0f] Swh0a
m_bControl = FALSE; tM|/OJ7
m_bAlt = FALSE; t)5.m}
m_bShift = FALSE; if?X^j0
m_Path = _T("c:\\"); e>m+@4*sn
m_Number = _T("0 picture captured."); =h70!) Z5
nCount=0; DYF(O-hJK
bRegistered=FALSE; QM'|k6
bTray=FALSE; \fsNI T/
//}}AFX_DATA_INIT ceuEsQ}
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 q`3HHq
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); %ol\ sO|
} [Z2{S-)UM
mM r$~^P:
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) 8,IQ6Or|-2
{ ]XASim:A
CDialog::DoDataExchange(pDX); 'YJ~~o
//{{AFX_DATA_MAP(CCaptureDlg) _^g4/G#13c
DDX_Control(pDX, IDC_KEY, m_Key); IF cre
DDX_Check(pDX, IDC_CONTROL, m_bControl); xn>N/+,
DDX_Check(pDX, IDC_ALT, m_bAlt); M.\XG}RR
DDX_Check(pDX, IDC_SHIFT, m_bShift); o!lKP>
DDX_Text(pDX, IDC_PATH, m_Path); AyNpY_B0c
DDX_Text(pDX, IDC_NUMBER, m_Number); v|KGzQx$.*
//}}AFX_DATA_MAP nvCp-Z$
} EiDnUL(W7h
'jXJ!GFw
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) f_Hh"Vh
//{{AFX_MSG_MAP(CCaptureDlg) 8!b>[Nsc
ON_WM_SYSCOMMAND() 0#NbAMt
ON_WM_PAINT() D~FIv
ON_WM_QUERYDRAGICON() Y>T<Qn^D
ON_BN_CLICKED(ID_ABOUT, OnAbout) ::_bEmk
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) J/QqwoR
ON_BN_CLICKED(ID_CHANGE, OnChange) 2tg 07
//}}AFX_MSG_MAP <J>k%,:B
END_MESSAGE_MAP() d)3jkHYEjj
!ALq?u
BOOL CCaptureDlg::OnInitDialog() O6,2M[a
{ _kc}:
CDialog::OnInitDialog(); bk1.H@8
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); yFn~rv|&G
ASSERT(IDM_ABOUTBOX < 0xF000); 1\%@oD_zG
CMenu* pSysMenu = GetSystemMenu(FALSE); +s6v!({Z
if (pSysMenu != NULL) K^h9\<w
{ [&IcIZ
CString strAboutMenu; (+6N)9rj`/
strAboutMenu.LoadString(IDS_ABOUTBOX); #Cx#U"~G`
if (!strAboutMenu.IsEmpty()) Z^BZH/I?
{ +^jm_+
pSysMenu->AppendMenu(MF_SEPARATOR); J 7sH]
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); e _(';Lk
} liqVfB%
} PI@?I&Bo
SetIcon(m_hIcon, TRUE); // Set big icon 6XHM `S
SetIcon(m_hIcon, FALSE); // Set small icon 0Y'ow=8M
m_Key.SetCurSel(0); `t\\O
RegisterHotkey(); AiL80W^=d)
CMenu* pMenu=GetSystemMenu(FALSE); v0TbQ
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); >oN Wf
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); }]M'f:%b
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); \=P(?!v
return TRUE; // return TRUE unless you set the focus to a control %O!TS_~9
} kT]jJbb"
]0O3kiVQ
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) Q{5.;{/eC
{ ~Q#!oh'i
if ((nID & 0xFFF0) == IDM_ABOUTBOX) H )>3c1
{ lWH#/5`h
CAboutDlg dlgAbout; _#Lq~02 %
dlgAbout.DoModal(); ]t~'wL#Z
} Mnk-"d
else ,c0t#KgQ.
{ E3(o}O
CDialog::OnSysCommand(nID, lParam); D+jE{v'
} S_nAO\h
} JIjo^zOXsc
K-"`A.:S
void CCaptureDlg::OnPaint() sIbPMu`&U
{ K}MlC}oIt
if (IsIconic()) |3~]XN-
{ 7z$bCO L=S
CPaintDC dc(this); // device context for painting *FC|v0D
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); :yE0DS<_
// Center icon in client rectangle *2}f $8
int cxIcon = GetSystemMetrics(SM_CXICON); L7n G5i
int cyIcon = GetSystemMetrics(SM_CYICON); (>Nwd^
CRect rect; E!.&y4
GetClientRect(&rect); db=S*LUbl
int x = (rect.Width() - cxIcon + 1) / 2; (74y2U6
int y = (rect.Height() - cyIcon + 1) / 2; V2xvuDHI
// Draw the icon BP l% SL
dc.DrawIcon(x, y, m_hIcon); "LH!Trl@k
} jt(GXgm
else >y,. `ECn
{ WgG$ r
CDialog::OnPaint(); )#1!%aQ
} 2#00<t\
} 4"3.7.<Q`
}D?qj3?bj
HCURSOR CCaptureDlg::OnQueryDragIcon() b#"&]s-
{ S>p0{:zM
return (HCURSOR) m_hIcon; v,8Q9<=O
} AC 2kG
I}f7|hYX
void CCaptureDlg::OnCancel() 9ZG:2ncdJ
{ lFduX D
if(bTray) m`n~-_
DeleteIcon(); n(|n=P:o
CDialog::OnCancel(); ZR-64G=L,
} UCkV;//.
\{!,a
void CCaptureDlg::OnAbout() %C@p4
{ y"ss<`Cn
CAboutDlg dlg; 3IjsV5a
dlg.DoModal(); +V9xKhR;x
} s? Xgo&rS_
`iN\@)E
void CCaptureDlg::OnBrowse() Jf0i$
{ |:Maa6(W
CString str; 0*9xau{(
BROWSEINFO bi; ho B[L}<c
char name[MAX_PATH]; [k(b<'
ZeroMemory(&bi,sizeof(BROWSEINFO)); KF5r?|8M
bi.hwndOwner=GetSafeHwnd(); @|sBnerE
bi.pszDisplayName=name; ,!LY:pMK
bi.lpszTitle="Select folder"; Mu-kvgO`L
bi.ulFlags=BIF_RETURNONLYFSDIRS; Owgy<@C
LPITEMIDLIST idl=SHBrowseForFolder(&bi); C(h Td%
if(idl==NULL) !*HJBZ]q
return; [)dIt@Y&j
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); *9w-eK1{
str.ReleaseBuffer(); r{84Y!k~*
m_Path=str; q_ryW$/_
if(str.GetAt(str.GetLength()-1)!='\\') $uJc/
m_Path+="\\"; $duT'G, -
UpdateData(FALSE); .Pte}pM"v
} lUA-ug! ^
Bd)Cijr
void CCaptureDlg::SaveBmp() [}GK rI
{ :<k
(y?GB
CDC dc; nHH
FHnFf
dc.CreateDC("DISPLAY",NULL,NULL,NULL); 9$U4x|n
CBitmap bm; ggitUQ+t;G
int Width=GetSystemMetrics(SM_CXSCREEN); Y)$%-'=b+
int Height=GetSystemMetrics(SM_CYSCREEN); Q$ Dx:
bm.CreateCompatibleBitmap(&dc,Width,Height); E/wxX#]\
CDC tdc; FC6~V6R
tdc.CreateCompatibleDC(&dc); XJKns
CBitmap*pOld=tdc.SelectObject(&bm); NI.ROk1{+4
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); JZ*.;}"
tdc.SelectObject(pOld); dLF*'JjY
BITMAP btm; sWMln:=
bm.GetBitmap(&btm); PB.'huu
DWORD size=btm.bmWidthBytes*btm.bmHeight; fH?A.JP=a
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); ~K;hXf
BITMAPINFOHEADER bih; -:"KFc8A
bih.biBitCount=btm.bmBitsPixel; EY3F9h3xM|
bih.biClrImportant=0; 4\p%|G^hU
bih.biClrUsed=0; CY{!BV'
bih.biCompression=0; 8O(L;&h
bih.biHeight=btm.bmHeight; tLN^k;w
bih.biPlanes=1; 3 =c#LUA`
bih.biSize=sizeof(BITMAPINFOHEADER); J7-
vB",U
bih.biSizeImage=size; %.]#3tW
bih.biWidth=btm.bmWidth; tg==Qgz
bih.biXPelsPerMeter=0; 5GgH6
bih.biYPelsPerMeter=0; ]4V1]
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); r}^1dO
static int filecount=0; afna7TlS
CString name; 5 r_Z3/%
name.Format("pict%04d.bmp",filecount++); 5M~nNm[xJU
name=m_Path+name; Ovj^
7r:<s
BITMAPFILEHEADER bfh; [hpkE lE
bfh.bfReserved1=bfh.bfReserved2=0; =<m!%/I
bfh.bfType=((WORD)('M'<< 8)|'B'); QxxPImubB
bfh.bfSize=54+size; ?6nB=B)/
bfh.bfOffBits=54; QT73=>^B
CFile bf; =Ry8E2NuM
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ +kEM%z
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); Yb_HvP
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); D)DD 6
bf.WriteHuge(lpData,size); S@S4<R1{\
bf.Close(); ys>n%24qP
nCount++;
bKK'U4
} %eW7AO>
GlobalFreePtr(lpData); jb,a>9]p
if(nCount==1) 4b;*:C4?
m_Number.Format("%d picture captured.",nCount); ]h'
38W
else .-mIU.Nwi
m_Number.Format("%d pictures captured.",nCount); DO~[VK%|
UpdateData(FALSE); )?{!7/H F@
} WQze|b%
Y<(7u`F
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) <H-kR\HF
{ MMC$c=4"
if(pMsg -> message == WM_KEYDOWN) QA;,/iw `
{ S5, u| H
if(pMsg -> wParam == VK_ESCAPE) ebNRZJ?C,
return TRUE; m[Ihte->
if(pMsg -> wParam == VK_RETURN) 0*tnJB
return TRUE; MN5}}@
} k\;D;e{
return CDialog::PreTranslateMessage(pMsg); wbcip8<t
} n'{jc6&|
x=L"qC9f/
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) '[%Pdd]!
E
{ 3`{;E{
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ DEhR\Z!
SaveBmp(); Ta/zDc"e
return FALSE; 2|i1}
} ';8 ,RTe
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ 5S!j$_(
CMenu pop; 7-n HPDp'
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); V9}\0joM
CMenu*pMenu=pop.GetSubMenu(0); eq8faC5
pMenu->SetDefaultItem(ID_EXITICON); km5gO|V>m
CPoint pt; SqRM*Cf=
GetCursorPos(&pt); 8v8-5N
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); -!qjBK,`X
if(id==ID_EXITICON) NIQ}+xpC
DeleteIcon(); KnA BFH
else if(id==ID_EXIT) @ NL<v-t
OnCancel(); C;/ONF
return FALSE; .|g@#XIwe#
} &v1E)/q{Z
LRESULT res= CDialog::WindowProc(message, wParam, lParam); }` H{;A
h
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) NS`hXf
AddIcon(); Gf9sexn]l
return res; &Ejhw3Nw
} bpU>(j
mLkp*?sfC
void CCaptureDlg::AddIcon() 'jE/Tre^
{ (jhi<eV
NOTIFYICONDATA data; KWD{_h{ R
data.cbSize=sizeof(NOTIFYICONDATA); y(22m+B
CString tip; X"`[&