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:
{3!v<CY'
6x6PP}IX 一、实现方法
$\{@wL bf::bV?T 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
%5a>@K] Ean@GDLz8 #pragma data_seg("shareddata")
%?R}sUo HHOOK hHook =NULL; //钩子句柄
>8HcCG UINT nHookCount =0; //挂接的程序数目
1_*o(HR static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
IU/dY`J1 static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
Oe*emUX7 static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
EubF`w$KWX static int KeyCount =0;
.J'}qkz~ static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
X >C*(/a #pragma data_seg()
fY$M**/, yp_:]RE 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
!{"{(h)+@ mq su8ti DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
h0d;a 1Y\g{A" BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
kC0F@'D cKey,UCHAR cMask)
)"wWV{k {
-+ -@Yq$ BOOL bAdded=FALSE;
591Syyy for(int index=0;index<MAX_KEY;index++){
"{j4?3f) if(hCallWnd[index]==0){
$#8dtF hCallWnd[index]=hWnd;
?nCG:\&;'= HotKey[index]=cKey;
mKQ!@$* HotKeyMask[index]=cMask;
>
QDmSy*& bAdded=TRUE;
6Jrh'6o@ KeyCount++;
gI<TfcC break;
5fA<I _ D }
K1]H~' }
k*[["u^u] return bAdded;
Kbrb;r59 }
E9YR *P4$ //删除热键
|fOQm BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
, 0MDkXb {
IXe[JL: BOOL bRemoved=FALSE;
j"9bt GX for(int index=0;index<MAX_KEY;index++){
nYLq%7}k if(hCallWnd[index]==hWnd){
r|:i: ii if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
U;Y{=07a@ hCallWnd[index]=NULL;
^#9
&Rk!t HotKey[index]=0;
:q<8:,rP HotKeyMask[index]=0;
00[Uk'Q*5 bRemoved=TRUE;
n0:'h}^ KeyCount--;
oM M`7wJw break;
HSE9-c= }
@GK0j"_ }
/Z94<}C6b }
nGZZCsf < return bRemoved;
%l(qyH)* }
R6r'[-B2 Cq(dj^/~m W
MU9tq[ DLL中的钩子函数如下:
)xy1DA (:4N#p LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
#qtAFIm' {
a4Qr\"Qm BOOL bProcessed=FALSE;
]<V[H if(HC_ACTION==nCode)
4RGEg;]S {
@bSxT,2 if((lParam&0xc0000000)==0xc0000000){// 有键松开
uckag/tv switch(wParam)
yF8 av=<{ {
3pl/kT.\ case VK_MENU:
[I^>ji0V MaskBits&=~ALTBIT;
}_vE
lBh6$ break;
BxS\"W case VK_CONTROL:
]Nz~4ebB MaskBits&=~CTRLBIT;
yZj:Kp+7 break;
O
KVIl case VK_SHIFT:
KuL2X@)} MaskBits&=~SHIFTBIT;
^2rNty,nH break;
s`B]+ default: //judge the key and send message
CkKr@. dV break;
k7z;^: }
SV0E7qX for(int index=0;index<MAX_KEY;index++){
71_{FL8 if(hCallWnd[index]==NULL)
}RowAGWL continue;
Soy!)c] if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
}OZp[V {
9~2}hXm; SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
B"rnSui bProcessed=TRUE;
yV,ki^^ }
>RZ]t[)y }
{7.."@Ob<v }
`z=U-v'H)D else if((lParam&0xc000ffff)==1){ //有键按下
O$%M.C' switch(wParam)
(LbAP9Zj#f {
u.ubw(vv case VK_MENU:
:L*"OT7(6 MaskBits|=ALTBIT;
#Drs=7w break;
Ab ,n^ case VK_CONTROL:
SR7$m<0t* MaskBits|=CTRLBIT;
, 7&`V=C break;
nk|j(D case VK_SHIFT:
/n;Ll](ri MaskBits|=SHIFTBIT;
(L} break;
rH
Et]Xa default: //judge the key and send message
>{?~cNO& break;
_:DnF }
5N<f\W, for(int index=0;index<MAX_KEY;index++){
78zjC6}` if(hCallWnd[index]==NULL)
(hWr!(>C4] continue;
v6(Yz[ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
5G"LuA {
W/q-^Zkt,9 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
&/R`\(hEA bProcessed=TRUE;
+y'V }
^PA >t$ }
,WSK
' }
K=T]@ix$ if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
&~gqEl6RF for(int index=0;index<MAX_KEY;index++){
WJ":BK{NM if(hCallWnd[index]==NULL)
U+: o y:mz continue;
QFt7L if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
4gbi?UAmX SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
z(V?pHv+ //lParam的意义可看MSDN中WM_KEYDOWN部分
D#Fe\8!l }
V;0{o }
aV"K%#N }
^PA[fL" return CallNextHookEx( hHook, nCode, wParam, lParam );
o>*vG }
Elth xj 9 f$S4O5 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
8fA9yQ8 oE@{h$= BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
tgoOzk^ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
AE0d0Y~9 64xq@_+ 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:
=+;1^sZ ^T*^L=L_( LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
x}Qet4vV {
dJID '2a if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
Xvu|ss {
y
Nb&;E7 H //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
/xf4*zr SaveBmp();
:a$ZYyD return FALSE;
7LMad% }
tKg\qbY& …… //其它处理及默认处理
b*$/(2"m }
wXw pKm kB_u U !G ]=ar&1}J 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=&`;Vs 3&i8C,u]/O 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。
kcT?<r \%\b*OO 二、编程步骤
4
4%jz-m k#"Pv" 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";
Ij;= V"":_`1VW 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
VesW7m*z R:=C 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;
FkJa+ZA Kp,}7%hDw! 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
#k? Rl _YF~DU 5、 添加代码,编译运行程序。
^pz3L'4n T8Sgu6:*R 三、程序代码
,])@?TJb@ J]uYXsC ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
9D74/3b* #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
?m-kpW8 #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
Y68`B"3 #if _MSC_VER > 1000
9HMW!DSK` #pragma once
<}'hkEh{d= #endif // _MSC_VER > 1000
pKK&+umg #ifndef __AFXWIN_H__
3$f%{~3 #error include 'stdafx.h' before including this file for PCH
INwc@XB #endif
cyUNJw #include "resource.h" // main symbols
( 8+ _~_ class CHookApp : public CWinApp
1lRqjnzve& {
6S?a57;&W public:
^Q8m)0DP CHookApp();
6GzmzhX4 // Overrides
E\!:MCL // ClassWizard generated virtual function overrides
%8iA0t+ //{{AFX_VIRTUAL(CHookApp)
y$@d%U*rW^ public:
qmUq9bV virtual BOOL InitInstance();
Sd'Meebu virtual int ExitInstance();
$IUP; //}}AFX_VIRTUAL
I0ycLx //{{AFX_MSG(CHookApp)
wP3PI.g-g // NOTE - the ClassWizard will add and remove member functions here.
wd*i&ooQ*L // DO NOT EDIT what you see in these blocks of generated code !
-k\7k2 //}}AFX_MSG
)f#@`lf[< DECLARE_MESSAGE_MAP()
Y{y #us1 };
^EU&6M2 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
'R6D+Vk/ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
@'[w7HsJ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
QI>yi&t BOOL InitHotkey();
QC>I<j&`! BOOL UnInit();
'qLk"
#endif
E&0A W{ :4$Ex2 //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
p}uTqI #include "stdafx.h"
M64zVxsd #include "hook.h"
.FK'TG #include <windowsx.h>
&B3Eq1A #ifdef _DEBUG
{y0*cC #define new DEBUG_NEW
:K{`0U&l5 #undef THIS_FILE
tF)K$!GR[ static char THIS_FILE[] = __FILE__;
Lc^nNUzPo #endif
(_]{[dFr% #define MAX_KEY 100
IBl}.o&]B# #define CTRLBIT 0x04
l/OG79qq #define ALTBIT 0x02
>j?5MIm03 #define SHIFTBIT 0x01
E*Vx^k$ #pragma data_seg("shareddata")
77/y{#Sk HHOOK hHook =NULL;
+Cx~4zEq UINT nHookCount =0;
sw*k(i static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
a AYO(;3 static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
(omdmT%D static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
r5[om$|* static int KeyCount =0;
C|"T!1MlY4 static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
f
; |[ #pragma data_seg()
Y">tfLIL_ HINSTANCE hins;
|w[}\#2 void VerifyWindow();
R@>R@V>c BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
[a;lYsOsJ //{{AFX_MSG_MAP(CHookApp)
)Y~q6D K // NOTE - the ClassWizard will add and remove mapping macros here.
y<PPO6u7 // DO NOT EDIT what you see in these blocks of generated code!
d T/*O8 //}}AFX_MSG_MAP
&nn!{S^ END_MESSAGE_MAP()
G/(oQA fT._Os?i CHookApp::CHookApp()
,IuO;UV#) {
YkPz ~; // TODO: add construction code here,
Y'/` ?CK // Place all significant initialization in InitInstance
.^#{rk }
'N=' B<^;% eFXxkWR) CHookApp theApp;
-a3+C,I8g LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
fh$U" {
En6fmEn&;o BOOL bProcessed=FALSE;
a[s%2>e if(HC_ACTION==nCode)
3]'=s>UO>^ {
=YA%=
d_ if((lParam&0xc0000000)==0xc0000000){// Key up
v)N6ZOj*C switch(wParam)
i#lvt#2J0 {
m'k`p5[=h case VK_MENU:
&g,K5at MaskBits&=~ALTBIT;
eHv~?b5l break;
KGi@H%NN case VK_CONTROL:
DWJ%r"aN MaskBits&=~CTRLBIT;
$qQ6u! break;
V2w[0^L case VK_SHIFT:
{z@vSQ=)=P MaskBits&=~SHIFTBIT;
HAo8]?J break;
U'-MMwE] default: //judge the key and send message
avO+1<`4B break;
ABhza| }
voQ, K9 for(int index=0;index<MAX_KEY;index++){
oBqP^uT>a| if(hCallWnd[index]==NULL)
Fh v) continue;
%n}fkj' if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
{KwLcSn {
tP!sOvQ: SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
j K[VEhs bProcessed=TRUE;
aSHZR }
y#AY+
> }
U
YUIpe }
.NjdkHYR else if((lParam&0xc000ffff)==1){ //Key down
ec1g7w-n switch(wParam)
4EB$e? {
eV9:AN }K= case VK_MENU:
K1:F{* MaskBits|=ALTBIT;
f+xGf6V break;
e@]cI/j case VK_CONTROL:
oE)c8rE MaskBits|=CTRLBIT;
oK5(,8
(4 break;
8GlH)J+kq case VK_SHIFT:
Rz=]KeZu MaskBits|=SHIFTBIT;
|w~zh6~ break;
rLL;NTN+/ default: //judge the key and send message
]v_xEH}T break;
MW*}+ PCY }
iXl1S[.l for(int index=0;index<MAX_KEY;index++)
DA@
{ d-A {
[&3"kb if(hCallWnd[index]==NULL)
NlcWnSv continue;
,7%(Jj$
^ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
;o^m"I\y {
G#@<bg3 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
;k/0N~ bProcessed=TRUE;
P\zi:]h[Gh }
n+uq|sYVa }
)1x333.[c }
0l 3RwWj if(!bProcessed){
/-|xxy for(int index=0;index<MAX_KEY;index++){
$ @1&G~x if(hCallWnd[index]==NULL)
`SW`d<+L continue;
G$@X>)2N8 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
H50nR$$<*Y SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
+Z;0"'K'e }
+'#d*r91@ }
3^
Z tIZ }
Q ^ 39Wk@ return CallNextHookEx( hHook, nCode, wParam, lParam );
IwH
,g^0\ }
Jb
tbW&EH f4tia. BOOL InitHotkey()
n<hwstk {
Ue,"CQ6H if(hHook!=NULL){
!h4 So4p nHookCount++;
^Ws~h\{% return TRUE;
um8ZhXq }
J7cqn j else
Yhsb$wu hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
}+=@Ci if(hHook!=NULL)
xq~=T:>/A nHookCount++;
&H+<uYV return (hHook!=NULL);
5~[Fh2+ }
7L<oWAq BOOL UnInit()
@~N#)L^ {
"t\9@nzdX if(nHookCount>1){
IS=)J( 0 nHookCount--;
QM _~w\ return TRUE;
q?0goL }
aPb!-o{ BOOL unhooked = UnhookWindowsHookEx(hHook);
/?6y2 t if(unhooked==TRUE){
#F{|G:\@[ nHookCount=0;
u8,T>VNVw hHook=NULL;
5j}@Of1pd }
3<`h/`ku return unhooked;
7olA@;$ }
DHJnz>bE 4PF4# BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
<s{/ka3 {
#{?oUg>$ BOOL bAdded=FALSE;
_|Dt6 for(int index=0;index<MAX_KEY;index++){
4%6Q+LS']Q if(hCallWnd[index]==0){
bFJn-g n hCallWnd[index]=hWnd;
x NC>m&T HotKey[index]=cKey;
?41| e+p HotKeyMask[index]=cMask;
>qgBu_ bAdded=TRUE;
2 rBF<z7 KeyCount++;
}}xR?+4A break;
-OW$ }
~,guw7F }
"yz@LV1 return bAdded;
9q5[W=| }
.s9Iymz $fn^i. BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
4C[gW {
AP~!YwLW BOOL bRemoved=FALSE;
pKJ[e@E^ for(int index=0;index<MAX_KEY;index++){
SwL\=nq+~ if(hCallWnd[index]==hWnd){
EXi+pm if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
q_K1L hCallWnd[index]=NULL;
2>r.[ HotKey[index]=0;
|JDJ{;o HotKeyMask[index]=0;
nbRg<@ bRemoved=TRUE;
i'u;"ot=
KeyCount--;
7xcYM break;
qqAsh]Z }
!3&}r
}
h}d7M55#| }
G?g7G,|d return bRemoved;
Z:OO|x }
KWY G\#S0] rTJWftH! void VerifyWindow()
VcL {
eyG.XAP for(int i=0;i<MAX_KEY;i++){
0VZj;Jg}q if(hCallWnd
!=NULL){ m6gr!aT
if(!IsWindow(hCallWnd)){ N?Z?g_a8
hCallWnd=NULL; !6%mt} h
HotKey=0; %In"Kh*
HotKeyMask=0; h=tY 5]8
KeyCount--; {!S/8o"]
} .edZKmC6
} G@'0vYb#
} K_xOY
*
} h^c'L=dR
Qi}LV"&L
BOOL CHookApp::InitInstance() ][mc^eI0s|
{ j
AE0$u~.
AFX_MANAGE_STATE(AfxGetStaticModuleState()); ,jWd?-NH
hins=AfxGetInstanceHandle(); X>4`{x `
InitHotkey(); 9..k/cH
return CWinApp::InitInstance(); gdT_kb5HL8
} vP2QAGk<
!L_ SHlU
int CHookApp::ExitInstance() uj@<_|7
{ w\ :b(I
VerifyWindow(); &|4Uo5qS=Z
UnInit(); LNb![Rq
return CWinApp::ExitInstance(); Rt|Hma
} +NY4j-O
KWUz]>Z
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file 0_EF7`T
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) f#t^<`7
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ xRUYJ=|oh
#if _MSC_VER > 1000 @rMW_7[y
#pragma once `lhLIQ'j
#endif // _MSC_VER > 1000 <j#EyGAV
-T8
gV1*(<
class CCaptureDlg : public CDialog 1sJN^BvuG
{ $Da^z[8e
// Construction ?X1#b2s
public: iQF}x&a<
BOOL bTray; ~}AP@t*
BOOL bRegistered; {;E/l(HNI
BOOL RegisterHotkey(); yDC97#%3u
UCHAR cKey; ,Aii>D]
UCHAR cMask; ;cr6Xop#?
void DeleteIcon(); c
v
9
6F
void AddIcon(); !;gke,fB
UINT nCount; |DD?3#G01
void SaveBmp(); >C[1@-]G%7
CCaptureDlg(CWnd* pParent = NULL); // standard constructor gT
OMD
// Dialog Data lo: ~~l
//{{AFX_DATA(CCaptureDlg) \gkajY-?
enum { IDD = IDD_CAPTURE_DIALOG }; dWy1=UQfP
CComboBox m_Key; Z]f2&
BOOL m_bControl; x,dv~QU
BOOL m_bAlt; q@9i3*q;
BOOL m_bShift; mmL~`i/
CString m_Path; Yn>zR I
CString m_Number; }D+8K
//}}AFX_DATA W6T&hB
// ClassWizard generated virtual function overrides 5KR|p Fq
//{{AFX_VIRTUAL(CCaptureDlg) 6hK"k
public: DeA'D|
virtual BOOL PreTranslateMessage(MSG* pMsg); HqBPY[;s
protected: o3qv945
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support D3xaR
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); D8Rmxq!
//}}AFX_VIRTUAL PNgMLQI6
// Implementation ai4^NJn
protected: a`*WpP \+
HICON m_hIcon; .M2&ad :
// Generated message map functions %Be[DLtE"
//{{AFX_MSG(CCaptureDlg) SWb5K0YRn
virtual BOOL OnInitDialog(); >EtP^Lu~f_
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); HW726K*
afx_msg void OnPaint(); dA/o4co
afx_msg HCURSOR OnQueryDragIcon(); |vz;bJG
virtual void OnCancel(); =7fh1XnW
afx_msg void OnAbout(); "ru1 ;I
afx_msg void OnBrowse(); (N|xDl&;
afx_msg void OnChange(); &o@5%Rz2/
//}}AFX_MSG k+$4?/A
DECLARE_MESSAGE_MAP() PAV2w_X~
}; ~iZF~PQ1_
#endif HDyZzjgG
QV$dKjMS
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file B5HdC%8/}
#include "stdafx.h" vXyo
#include "Capture.h" :QV6z*#zD
#include "CaptureDlg.h" ukf\*
#include <windowsx.h> ]a#]3(o]}
#pragma comment(lib,"hook.lib") tq[",&K
#ifdef _DEBUG ~@ b}=+n
#define new DEBUG_NEW \C#b@xLnX
#undef THIS_FILE 5,BkwAr+6[
static char THIS_FILE[] = __FILE__; y=xe<#L
#endif g/Jj]X#r
#define IDM_SHELL WM_USER+1 cGta4;
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); IQ=|Kj9h
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); ,7jiHF
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; *.%)rm
class CAboutDlg : public CDialog x[W]?`W3r~
{ y~c[sW
public: ptyDv
CAboutDlg(); H)T# R?
// Dialog Data o!r4 frP
//{{AFX_DATA(CAboutDlg) BON""yIC
enum { IDD = IDD_ABOUTBOX }; !9 LAXM
//}}AFX_DATA Y~hd<8 ~
// ClassWizard generated virtual function overrides -^Km}9g
//{{AFX_VIRTUAL(CAboutDlg) \w[ZY$/
protected: Z?c=t-yqp
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support X1[R*a/p
//}}AFX_VIRTUAL JS?l?~
// Implementation [pgkY!R?)
protected: OXX(OCG>
//{{AFX_MSG(CAboutDlg) il cy/
//}}AFX_MSG k>;r9^D
DECLARE_MESSAGE_MAP() i-s?"Fk
}; 'A(-MTd%
\
Q8q9|g?]
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) p
z+}7
{ 4i\aW:_'i
//{{AFX_DATA_INIT(CAboutDlg) }:l%,DBw
//}}AFX_DATA_INIT 5YG@[ic
} K[a<
_B7?C:8Q-
void CAboutDlg::DoDataExchange(CDataExchange* pDX) YSz$` 7i
{ pkV\D
CDialog::DoDataExchange(pDX); :mV7)oWH
//{{AFX_DATA_MAP(CAboutDlg) _E<O+leWf
//}}AFX_DATA_MAP X1V}%@3:
} ]#-/i2-K
i2}=/
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 5A]LNA4i
//{{AFX_MSG_MAP(CAboutDlg) `MYK XBM
// No message handlers `Y({#U
//}}AFX_MSG_MAP u3i|}`
END_MESSAGE_MAP() (=tF2YBV
><
_Z
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) Z=Y_;dS9
: CDialog(CCaptureDlg::IDD, pParent) q,,>:]f#
{ $s(4?^GP
//{{AFX_DATA_INIT(CCaptureDlg) qTa]th;
m_bControl = FALSE; ny_ kr`$42
m_bAlt = FALSE; {p*hN i)0
m_bShift = FALSE; yH"$t/cU"R
m_Path = _T("c:\\"); i&'^9"Z)O
m_Number = _T("0 picture captured."); e5>5/l]jsg
nCount=0; v6DxxE2n
bRegistered=FALSE; )"c]FI[}
bTray=FALSE; L1!hF3G
//}}AFX_DATA_INIT a.`JS
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 ~iR!3+yg4
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); [cLU*:
} =.f +}y
>5~Zr$
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) iI@Gyq=
{ am'p^Z@
CDialog::DoDataExchange(pDX); Vh.;p.!e
//{{AFX_DATA_MAP(CCaptureDlg) ;$tv8%_L[
DDX_Control(pDX, IDC_KEY, m_Key);
vD)A)
DDX_Check(pDX, IDC_CONTROL, m_bControl); T.w}6?2
DDX_Check(pDX, IDC_ALT, m_bAlt); #nf%ojh
DDX_Check(pDX, IDC_SHIFT, m_bShift); QOh w
DDX_Text(pDX, IDC_PATH, m_Path); mLk6!&zN
DDX_Text(pDX, IDC_NUMBER, m_Number); XAULD]Q
//}}AFX_DATA_MAP lF}$`6
} <j1d~XU}
l;{N/cS
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) 400Tw`AiJ
//{{AFX_MSG_MAP(CCaptureDlg) G0;EbJ/&
ON_WM_SYSCOMMAND() WP@JrnxO\`
ON_WM_PAINT() <;,S"e
ON_WM_QUERYDRAGICON() mp+\!
ON_BN_CLICKED(ID_ABOUT, OnAbout) ?Str*XA;
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) Rqb{)L
X*
ON_BN_CLICKED(ID_CHANGE, OnChange) ?4,*RCaI
//}}AFX_MSG_MAP Ubw!/|mi
END_MESSAGE_MAP() 1l|A[G
;LF)u2x=
BOOL CCaptureDlg::OnInitDialog() F<ocY0=9p
{ .iP G /e
CDialog::OnInitDialog(); %X9:R'~ sP
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); MNf @HG
ASSERT(IDM_ABOUTBOX < 0xF000); fBWJ%W
CMenu* pSysMenu = GetSystemMenu(FALSE); 5Du>-.r
if (pSysMenu != NULL) K7[AiU_I
{ X@h^T>["
CString strAboutMenu; LcpyW=)}"V
strAboutMenu.LoadString(IDS_ABOUTBOX); %M;_(jda
if (!strAboutMenu.IsEmpty()) rMXOwkE
{ x(3
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pSysMenu->AppendMenu(MF_SEPARATOR); 32bkouq
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); ]g8i>,G
} `3sy>GU?
} [nN\{"~O
SetIcon(m_hIcon, TRUE); // Set big icon \Sq"3_m4T
SetIcon(m_hIcon, FALSE); // Set small icon r_V2 J{B
m_Key.SetCurSel(0); EYJ i6#
RegisterHotkey(); JW% /^'
CMenu* pMenu=GetSystemMenu(FALSE); 94'k7_q
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); )S wG+k,
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); V$Xl^# tN
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); uku}Mr"p
return TRUE; // return TRUE unless you set the focus to a control lEyG9Xvi
} WK_y1(v>
GEe 0@q#YA
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) %g]$Vfpy
{
,3J`ftCV
if ((nID & 0xFFF0) == IDM_ABOUTBOX) _/N'I7g
{ 0x>/ 6 <<
CAboutDlg dlgAbout; V$-~%7@>;9
dlgAbout.DoModal(); G1?0Q_RN
} I4o=6ts
else ,>QMyI
hv
{ *b6I%MZn
CDialog::OnSysCommand(nID, lParam); Xew1LPI
} StdS$XW
} O7'<I|aD
p29yaM
void CCaptureDlg::OnPaint() wzDk{4U
{ c+Q.?vJ
if (IsIconic()) ySixYt
{ )O2Nlk~l&
CPaintDC dc(this); // device context for painting >2| [EZ
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); ]e@0T{!
// Center icon in client rectangle Uxk[O
int cxIcon = GetSystemMetrics(SM_CXICON); #LN5&i;s
int cyIcon = GetSystemMetrics(SM_CYICON); !sfXq"F
CRect rect; 8z."X$
GetClientRect(&rect); 7|+|\7l#
int x = (rect.Width() - cxIcon + 1) / 2; EI=Naq
int y = (rect.Height() - cyIcon + 1) / 2; V>FT~k_"
// Draw the icon d4y9AE@k
dc.DrawIcon(x, y, m_hIcon); FUyB"-<
} Ss#@=:"P
else |P,zGy
{ !^)wPmk
CDialog::OnPaint(); `?zg3GD_
} o[bE
} LC,*H0
gnQo1q{ 4
HCURSOR CCaptureDlg::OnQueryDragIcon() E'e8&3!bx
{ Q)LXL.0h
return (HCURSOR) m_hIcon; Ge^zX$.'
} 0kNe?Xi
=9qGEkd3
void CCaptureDlg::OnCancel() lC'{QUC
{ u0bfX,e2U
if(bTray) :mXGIRi
DeleteIcon(); bH\'uaJ
CDialog::OnCancel();
N|!MO{sB
} biK)&6|`sa
;ZQ-uz
void CCaptureDlg::OnAbout() D00G1:Ft(T
{ &v5G92
CAboutDlg dlg; r/NSD$-n
dlg.DoModal(); ?a'6EAErC
} oUJj5iu}
}}^,7npU
void CCaptureDlg::OnBrowse() +Dx1/I
{ j[J5y#
CString str; S=0"f}Jo.
BROWSEINFO bi; C5O5S:|'
char name[MAX_PATH]; X,C*qw@
ZeroMemory(&bi,sizeof(BROWSEINFO)); B :.@Qi^
bi.hwndOwner=GetSafeHwnd(); GXDC@+$14
bi.pszDisplayName=name; mu6039qy
bi.lpszTitle="Select folder"; s<[A0=LH
bi.ulFlags=BIF_RETURNONLYFSDIRS; ,O:EX0
LPITEMIDLIST idl=SHBrowseForFolder(&bi); :a_BD
if(idl==NULL) ?z2jk
return; ?QCmSK=L
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); w)+wj[6
E
str.ReleaseBuffer(); A6Ghj{~
m_Path=str; =N YgGEFq.
if(str.GetAt(str.GetLength()-1)!='\\') /y}"M
m_Path+="\\"; "+=Pp
UpdateData(FALSE); L'zE<3O'3
} uije#cj#O
y[:
~CL
void CCaptureDlg::SaveBmp() /@ y;iJk;
{ v8ba~
CDC dc; 2
;JQX!
dc.CreateDC("DISPLAY",NULL,NULL,NULL); 21r==
H$
CBitmap bm; '3A+"k-}mh
int Width=GetSystemMetrics(SM_CXSCREEN); 2O
eshkE
int Height=GetSystemMetrics(SM_CYSCREEN); K(<$.
bm.CreateCompatibleBitmap(&dc,Width,Height); 8zhBA9Y#~
CDC tdc; OFc\fW#
tdc.CreateCompatibleDC(&dc); ojHhT\M`
CBitmap*pOld=tdc.SelectObject(&bm); !Y (apVQ
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); t#C,VwMe[
tdc.SelectObject(pOld); !Eq#[Gs
BITMAP btm; <d5@CA+M
bm.GetBitmap(&btm); q[7CPE0n
DWORD size=btm.bmWidthBytes*btm.bmHeight; 9<yAQ?7L
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); rh@r\H@j
BITMAPINFOHEADER bih; "jMqt9ysN
bih.biBitCount=btm.bmBitsPixel; JnfqXbE
bih.biClrImportant=0; _ Yfmxn8V
bih.biClrUsed=0; QE|`&~sme
bih.biCompression=0; S_J,[#&
bih.biHeight=btm.bmHeight; |xn#\epy@
bih.biPlanes=1; G6ayMw]OF
bih.biSize=sizeof(BITMAPINFOHEADER); m#tpbFAsc
bih.biSizeImage=size; >lrhHU
bih.biWidth=btm.bmWidth; 8zY)J #
bih.biXPelsPerMeter=0; JPEIT
bih.biYPelsPerMeter=0; (a[.vw^g
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); +a%xyD:.?
static int filecount=0; 3gAR4
CString name; xq}-m!nX
name.Format("pict%04d.bmp",filecount++); \[yr=X
name=m_Path+name; )zU:
BITMAPFILEHEADER bfh; ]*qU+&
bfh.bfReserved1=bfh.bfReserved2=0; 8".2)W4*
bfh.bfType=((WORD)('M'<< 8)|'B'); LheFQ A
bfh.bfSize=54+size; $.pTB(tO
bfh.bfOffBits=54; NmJ`?-Z
CFile bf; OTj,O77k
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ I,b9t\(6
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); ?v:ZU~i
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); IV'p~t
bf.WriteHuge(lpData,size); c!It^*
bf.Close(); Z7fg
25
nCount++; qj&bo
} .20V
3
GlobalFreePtr(lpData); &)n_]R#)
if(nCount==1) `H\)e%]
m_Number.Format("%d picture captured.",nCount); Y;Ap9i*
else 8nCp\0
m_Number.Format("%d pictures captured.",nCount); )0^># k
UpdateData(FALSE); i31<].|kA*
} Ve}[XqdS^p
gxwo4.,
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) ,M QVE
{ Oe51PEqn
if(pMsg -> message == WM_KEYDOWN) #EDEYEW7
{ 9Hd;353Q
if(pMsg -> wParam == VK_ESCAPE) !;S"&mcPDJ
return TRUE;
.[?BlIlm
if(pMsg -> wParam == VK_RETURN) OR:[J5M)
return TRUE; qz!Ph5(
} ]dSK
wxk
return CDialog::PreTranslateMessage(pMsg); p~&BChBl!=
} SR ZL\m}
5u r)uz]w8
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) UZGDdP
{ }g|nz8
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ 5{d\uE%'p
SaveBmp(); %d1draL
return FALSE; LH2PTW\b!6
} }u%"$[I}
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ |S&5es-yW
CMenu pop; K B!5u 9
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); [ %}u=}@
CMenu*pMenu=pop.GetSubMenu(0); \ECu5L4
pMenu->SetDefaultItem(ID_EXITICON); Dw_D+7>(v
CPoint pt; Iy';x
GetCursorPos(&pt); <xo-Fv
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); */z??fI27
if(id==ID_EXITICON) _OMpIdY,R*
DeleteIcon(); TW7:q83{l
else if(id==ID_EXIT) Z
o=]dBp.
OnCancel(); TJ(K3/)Z
return FALSE; >xqM5#m`E$
} (gwj)?:
LRESULT res= CDialog::WindowProc(message, wParam, lParam); "0CjP+1k
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) rkB'Hf
AddIcon(); e$e#NoN
return res; ";x+1R.d
} tnz+bX26
Ub_4yN;
void CCaptureDlg::AddIcon() e)H!uR
{ -)jax
NOTIFYICONDATA data; c>HK9z{
data.cbSize=sizeof(NOTIFYICONDATA); \,&9
CString tip; Pf<[|yu4?
tip.LoadString(IDS_ICONTIP); oH#v6{y
data.hIcon=GetIcon(0);
Pm+tQ
data.hWnd=GetSafeHwnd(); kM/Te{<
strcpy(data.szTip,tip); EpYy3^5d
data.uCallbackMessage=IDM_SHELL; UG;Y^?Ppe5
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; x;LzG t:w
data.uID=98; JWv{=_2w
Shell_NotifyIcon(NIM_ADD,&data); J~#$J&iKh
ShowWindow(SW_HIDE); >?lOE
-}^
bTray=TRUE; qQ0C ?
} C[uOReo
kW@,$_cK
void CCaptureDlg::DeleteIcon() w%y\dIeI'
{ ?F7o!B
NOTIFYICONDATA data; C/=XuKE-t
data.cbSize=sizeof(NOTIFYICONDATA); +GF#?X0^
data.hWnd=GetSafeHwnd(); +Qxu$#
data.uID=98; 71fk.16
Shell_NotifyIcon(NIM_DELETE,&data); mee$"Y
ShowWindow(SW_SHOW); l|/LQ/
SetForegroundWindow(); @+LfQY
ShowWindow(SW_SHOWNORMAL); $t~@xCi]S
bTray=FALSE; l;A,0,i
} p\p\q(S">
l?8M
p$M
void CCaptureDlg::OnChange() 5J2=`=FK
{ 1ocJ+
RegisterHotkey(); ;CHi\+` 5
} ~utJB 'gr
BvD5SBa}"
BOOL CCaptureDlg::RegisterHotkey() tV;`fV
{ Y&HK