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:
sZL#xZ5
Df
?F6pEt4 一、实现方法
vt;{9\Y nM-h&na{s 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:
'eJ+JM<0% bD[!/'4eJ #pragma data_seg("shareddata")
'6xQT-sUih HHOOK hHook =NULL; //钩子句柄
i 4%xfN UINT nHookCount =0; //挂接的程序数目
,>:;#2+og static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
]Qfn(u=o static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
,^x4sA[/ static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
NyVnA static int KeyCount =0;
KA){''>8 static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
z[cyA. #pragma data_seg()
f~dd3m(' @Q^P{ 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。
>9q&PEc |iR T!
] 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:
;3kj2} E2"q3_,, BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
fVt9X*xKS cKey,UCHAR cMask)
t7m>A-I {
|pmZ.r BOOL bAdded=FALSE;
LwK+:4$ for(int index=0;index<MAX_KEY;index++){
(q4),y<:[ if(hCallWnd[index]==0){
t@R
?Rgu3 hCallWnd[index]=hWnd;
-GqT7`:(H4 HotKey[index]=cKey;
ltgc:&=|@ HotKeyMask[index]=cMask;
*r=:y{!Y d bAdded=TRUE;
Gu'rUo3Do KeyCount++;
Pj4/xX break;
*+\SyO }
h~p>re }
o4%y>d) return bAdded;
g"?Y+j }
59%tXiO //删除热键
wmTq` XH) BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
l"!Ko G7 {
p8\zG|b5 BOOL bRemoved=FALSE;
PC[c/CoD for(int index=0;index<MAX_KEY;index++){
B';6r4I- if(hCallWnd[index]==hWnd){
XP1~d>j if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
>j'ZPwj^ hCallWnd[index]=NULL;
e][B7wZ HotKey[index]=0;
/,X[k ! HotKeyMask[index]=0;
*3&fqBg bRemoved=TRUE;
Ty<L8+B| KeyCount--;
AN24Sf'` break;
K)-m*#H&uw }
xw3YK!$sIF }
6X\ 2GC9 }
nIoPC[%_
return bRemoved;
s.x&LG }
g=]u^&
k0 X*,%&6O* DLL中的钩子函数如下:
sL@U sPps q LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
Wa1,
p {
dpFVN[\oK BOOL bProcessed=FALSE;
,uPJ_oZs if(HC_ACTION==nCode)
_^'I {
V`RNM%Y if((lParam&0xc0000000)==0xc0000000){// 有键松开
:pF_GkG switch(wParam)
a?6ab+7# {
qKE:3g35 case VK_MENU:
9!Ar`Io2@ MaskBits&=~ALTBIT;
\MmI`$ break;
w1Ec_y { case VK_CONTROL:
>^Yq|~[ MaskBits&=~CTRLBIT;
sk
2-5S break;
IhBp%^H0- case VK_SHIFT:
N*`b%XGn3 MaskBits&=~SHIFTBIT;
+Ag!?T break;
vi|R(& default: //judge the key and send message
kdCP break;
v9D22,K- }
x&`~R>5/ for(int index=0;index<MAX_KEY;index++){
h[?O+Z^ if(hCallWnd[index]==NULL)
*$"gaXI continue;
|0\0a&tkPl if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Hw|AA?,0- {
u@.>Z{h SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
"n: %E bProcessed=TRUE;
RKa}$
7 }
ZWm8*}3]7_ }
!TP@-
X; }
dTL5-@ else if((lParam&0xc000ffff)==1){ //有键按下
z OSs[[ switch(wParam)
rC7``#5 {
2<][%> ' case VK_MENU:
F! X}(N?t MaskBits|=ALTBIT;
+E; 2d-x*p break;
sU"}-de case VK_CONTROL:
cwuO[^S} MaskBits|=CTRLBIT;
I`w4Xrd break;
(__yh^h:m case VK_SHIFT:
7;tJK^J` MaskBits|=SHIFTBIT;
!bD@aVf?5 break;
>rP#ukr5 default: //judge the key and send message
X!j{o break;
g
>'p>}t }
v|ck>_"
. for(int index=0;index<MAX_KEY;index++){
v"MX>^/< if(hCallWnd[index]==NULL)
] )"u+ continue;
{w8 NN-n if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
U^.4Hy&D {
)OLq_':^@ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
TP}h~8 /; bProcessed=TRUE;
R.s^o]vT }
eVR5Xar }
v$)q($}p }
/Ux*u# if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
0}:2Q# for(int index=0;index<MAX_KEY;index++){
Y(+^;Y3U if(hCallWnd[index]==NULL)
Rm5Kkzd0o continue;
r,]#b[:.s| if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
QeDQo SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
?hR7<02 //lParam的意义可看MSDN中WM_KEYDOWN部分
WnHUE }
Y];Ycj; }
qTB$`f'|$ }
HJC(\\~ return CallNextHookEx( hHook, nCode, wParam, lParam );
i,nm`Z>u }
bC^(U`y 32 'i8U 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:
T?p`) yE\wj BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
pCu!l#J BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
8*c3| YxGcFjJ 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:
Otz E:qe x-'~Bu LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
XG@`ZJhU6 {
J@L9p46, if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
S|zW^|YU {
Z Dhx5SL& //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
;+I/ I9~ SaveBmp();
<N(oDa U return FALSE;
axk"^gps }
n q19Q) …… //其它处理及默认处理
$2MAZGJV }
aZk&`Jpz y#<MVH fRvAKz|rL 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
kL90&nP #RMI&[M 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
2`a
q**} SMf+qiM-E 二、编程步骤
F=)&98^v$_ j+8TlVur 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";
:+%Zh@u\ >az;!7~cD 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
B(DrY1ztj ;XC@=RpX 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;
U{ ;l0 2S e.o;eD}" 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;
*RR[H6B^]X UkfB^hA 5、 添加代码,编译运行程序。
+<.\5+ -#29xRPk 三、程序代码
w#
*1 /N %@R~DBS ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
XMRNuEU #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
Z?^"\u- #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
@ 2_<,;$ #if _MSC_VER > 1000
aj~bt-cE #pragma once
]bgY6@M #endif // _MSC_VER > 1000
#*c F8NV- #ifndef __AFXWIN_H__
'ZQWYr9R #error include 'stdafx.h' before including this file for PCH
tVqmn #endif
"Jy~PcJZ1 #include "resource.h" // main symbols
n(lk
dw class CHookApp : public CWinApp
lM#A3/=K {
O}#yijU3e public:
&s)0z)mR8& CHookApp();
3,);0@I // Overrides
7W9~1
.SC // ClassWizard generated virtual function overrides
IC{F.2D //{{AFX_VIRTUAL(CHookApp)
Gy@7Xf public:
m=b~i^@ virtual BOOL InitInstance();
gor<g))\ virtual int ExitInstance();
}'=h4yI //}}AFX_VIRTUAL
0+b0< //{{AFX_MSG(CHookApp)
On1v<SD$[ // NOTE - the ClassWizard will add and remove member functions here.
S*)o)34U // DO NOT EDIT what you see in these blocks of generated code !
q9dLHi<1 //}}AFX_MSG
4S
L_-Hm. DECLARE_MESSAGE_MAP()
}~o
ikN: };
z8Q"%@ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
]v5-~E! BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
Y'Z+, CNf BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
HXJ9xkrr BOOL InitHotkey();
-U>7
H`5 BOOL UnInit();
(tl}q3U #endif
fw{,bJ(U .h;Se //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
>&H~nGP. #include "stdafx.h"
t#<KxwhcN #include "hook.h"
hN(L@0) #include <windowsx.h>
Z,WW]Y,$ #ifdef _DEBUG
{@r*+~C3 #define new DEBUG_NEW
:w?7j_p# #undef THIS_FILE
g-yi xU static char THIS_FILE[] = __FILE__;
}.:d#]g8 #endif
}#= Od e #define MAX_KEY 100
[.q(h/b #define CTRLBIT 0x04
vZajT!h #define ALTBIT 0x02
K@@9:T$ #define SHIFTBIT 0x01
>Wh3MG6 #pragma data_seg("shareddata")
y67uH4&Vm HHOOK hHook =NULL;
ggou*;' UINT nHookCount =0;
!%mi&ak(Rn static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
W>L@j( static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
=p&sl;PsLw static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
4w{-'M.B static int KeyCount =0;
Yb=6C3l@ static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
wk02[ #pragma data_seg()
E' %lxr HINSTANCE hins;
* Zd_
HJi void VerifyWindow();
_2jw,WKr BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
z };ZxN //{{AFX_MSG_MAP(CHookApp)
kb|eQtH // NOTE - the ClassWizard will add and remove mapping macros here.
bZ#X9fT // DO NOT EDIT what you see in these blocks of generated code!
'Kis hXOn] //}}AFX_MSG_MAP
aed+C:N END_MESSAGE_MAP()
lug}
Uj =ef1XQ{i* CHookApp::CHookApp()
ARx0zI%N {
3$"/>g/ // TODO: add construction code here,
\8"QvC] // Place all significant initialization in InitInstance
;aK.%-s-Z }
Q#WE|,a M^ 5e~y CHookApp theApp;
:pd&dg!5 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
8Inx/>eOI {
F14(;'Az BOOL bProcessed=FALSE;
pN$;! if(HC_ACTION==nCode)
w4{y"A {
Lh 9S8EU if((lParam&0xc0000000)==0xc0000000){// Key up
d,R6` i switch(wParam)
Zu=kT}aGg {
}
gkP case VK_MENU:
b%nkIPA MaskBits&=~ALTBIT;
9bEM#Hj break;
VD#!ztcY' case VK_CONTROL:
bag&BHw MaskBits&=~CTRLBIT;
pGGV\zD^ break;
O3ZM:,. case VK_SHIFT:
=hcPTU-QU MaskBits&=~SHIFTBIT;
CT}' ")Bm break;
u)7
]1e{ default: //judge the key and send message
baIbf@t/ break;
l7Lj[d<n }
>h[(w for(int index=0;index<MAX_KEY;index++){
sA\L7`2H if(hCallWnd[index]==NULL)
M@O2
WB1ws continue;
sPpS~wk* if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
nx;$dxx_Ws {
4p x_ZD#J SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
E!@/N E\- bProcessed=TRUE;
E|,30Z+ }
j m>U6 }
E{gv,cUM }
ou;qO
5CT else if((lParam&0xc000ffff)==1){ //Key down
hrT%XJl switch(wParam)
QSmJ`Bm {
`Z8^+AMc case VK_MENU:
0IFlEe[># MaskBits|=ALTBIT;
sJ7sjrEp1 break;
</yo9. case VK_CONTROL:
lzoeST MaskBits|=CTRLBIT;
VV\Xb31J break;
!2tw, QM case VK_SHIFT:
e;;):\p4 MaskBits|=SHIFTBIT;
yId;\o B break;
~BQV]BJ7 default: //judge the key and send message
Bhx<g&|j break;
_vIO!*h0 }
fkBLrw for(int index=0;index<MAX_KEY;index++)
{~nvs4X {
kdBV1E+:C if(hCallWnd[index]==NULL)
/u?9S/ continue;
_-6e0sr Z if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
hpjUkGm5 {
b=_{/F*b? SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
:p&IX"Hh bProcessed=TRUE;
#|ddyCg2 }
cdN/Qy }
#Jv43L H }
}\4p3RQrz if(!bProcessed){
p6[#f96^u for(int index=0;index<MAX_KEY;index++){
GY7s if(hCallWnd[index]==NULL)
_iq2([BpL continue;
JE9>8+ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
wlL8X7+: SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
0`Gai2\1@ }
R|H[lbw }
=
uk`pj[l }
Me<du&
T return CallNextHookEx( hHook, nCode, wParam, lParam );
\KNdZC?V2 }
r!~(R+,c rV~T>x BOOL InitHotkey()
`11#J;[@G {
wH#-mu#Yl< if(hHook!=NULL){
Tr$i=
M nHookCount++;
g#Mv&tU return TRUE;
jPpRsw> }
eB7>t@ED else
&
L3UlL hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
t5n2eOy~T if(hHook!=NULL)
[5!'ykZ nHookCount++;
HrDTn&/ return (hHook!=NULL);
.
Jb?]n }
Cv P`2S\ BOOL UnInit()
M`bL5J; {
1N>6rN if(nHookCount>1){
1GUqT 9) nHookCount--;
rWqkdi1 return TRUE;
>"O1`xdG }
'1]+8E
`Z BOOL unhooked = UnhookWindowsHookEx(hHook);
l3BD
<PB2S if(unhooked==TRUE){
2DUr7rM nHookCount=0;
/<6ywLD hHook=NULL;
\U Ax(; }
^J0zXe -d return unhooked;
[\88@B=jXP }
w/O<.8+ _ r~+p BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
[4ee <J {
T^N L:78 BOOL bAdded=FALSE;
-!i;7[N for(int index=0;index<MAX_KEY;index++){
mZ~mf->% if(hCallWnd[index]==0){
2|$lk8 /, hCallWnd[index]=hWnd;
)>?! xx_` HotKey[index]=cKey;
-`Da`ml HotKeyMask[index]=cMask;
(eki X*y bAdded=TRUE;
>H)^6sJ;%b KeyCount++;
u>81dO]H break;
xJN |w\& }
0Y[*lM- }
~Vwk:+): return bAdded;
#>@<n3rq }
<Kh?Ad>N ?_8%h`z BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
T.J`S(oI {
pn|p(6 BOOL bRemoved=FALSE;
DL
%S(l for(int index=0;index<MAX_KEY;index++){
V;H
d)v(j if(hCallWnd[index]==hWnd){
_k6x=V;9g if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
DakLD~H; hCallWnd[index]=NULL;
i^/
eN HotKey[index]=0;
L7s>su|c( HotKeyMask[index]=0;
tF<^9stM bRemoved=TRUE;
#"hJpyW 4V KeyCount--;
7[4_+Q:} break;
^GE^Q\&D& }
=d}gv6v2S }
^WmGo]<B_ }
\5t`p67Ve_ return bRemoved;
<"hb#Tn }
<V7SSm j.<:00< void VerifyWindow()
MRjH40"2 {
+{5JDyh0 for(int i=0;i<MAX_KEY;i++){
1XqIPiXJ if(hCallWnd
!=NULL){ -)4uYK*
if(!IsWindow(hCallWnd)){ U~oBNsU"
hCallWnd=NULL; 1d/NZJ9
HotKey=0; Po'-z<}wS
HotKeyMask=0; +ylxezc
KeyCount--; xOwNCh
} P/C&R-{')
} S&5Q~}{,
} mfu*o0
} g8LT7
di"C]" ;
BOOL CHookApp::InitInstance() N-XVRuv
{ s.VUdR"
AFX_MANAGE_STATE(AfxGetStaticModuleState()); fEHh]%GT`
hins=AfxGetInstanceHandle(); &7$,<9.
InitHotkey(); D/gd
return CWinApp::InitInstance(); kuWK/6l4
} IRlN++I!
6e-#XCR{
int CHookApp::ExitInstance() FYp|oD2=1
{ gsLr=
VerifyWindow(); jK\V|5k
UnInit(); "}0)YRz%
return CWinApp::ExitInstance(); +R2^*
*<
} a];BW)
cSY2#u|v
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file u(8 _[/_B
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) nu;}S!J
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ 30A`\+^f
#if _MSC_VER > 1000 kyy0&L
#pragma once QpdujtH`
#endif // _MSC_VER > 1000 bc
`UA
Tg3:VD
class CCaptureDlg : public CDialog <I>%m,
{ =@Q#dDnFu%
// Construction ,Adus M
public: Ix*BI9E
BOOL bTray; 0$n8b/%.
BOOL bRegistered; ^^n+
BOOL RegisterHotkey(); T[i7C3QS
UCHAR cKey; xP8iz?6"V
UCHAR cMask; (:_%kmu
void DeleteIcon(); ybD{4&ZE
void AddIcon(); l4iuu
UINT nCount; W2}%zux
void SaveBmp(); 08zi/g2
3
CCaptureDlg(CWnd* pParent = NULL); // standard constructor i!CKA}",
// Dialog Data &_<VZS
//{{AFX_DATA(CCaptureDlg) OT-n\sL$
enum { IDD = IDD_CAPTURE_DIALOG }; RY\{=f
CComboBox m_Key; KU1+<OCh
BOOL m_bControl; b}ySZlmy
BOOL m_bAlt; K)yCrEZ
BOOL m_bShift; "WF(
6z#
CString m_Path; >{O[t2&
CString m_Number; l@,); w=_P
//}}AFX_DATA g0^~J2sDd
// ClassWizard generated virtual function overrides >Sc$R0
//{{AFX_VIRTUAL(CCaptureDlg) mA&RN"+V
public: F3kC"H
virtual BOOL PreTranslateMessage(MSG* pMsg); S% JNxT7'
protected: &,W_#l{
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support D}zOuB,S
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); gGtep*k
//}}AFX_VIRTUAL SRA|7g}7W
// Implementation 1Pud,!\%q
protected: pieU|?fQ
HICON m_hIcon; p<Zs*
@
// Generated message map functions Jo6~r-
//{{AFX_MSG(CCaptureDlg) ]I{qp~^#n
virtual BOOL OnInitDialog(); n.2E8m/
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); vDu0
afx_msg void OnPaint(); tb-OKZq
afx_msg HCURSOR OnQueryDragIcon(); uB5h9&57
virtual void OnCancel(); a<OCO0irJ
afx_msg void OnAbout(); ](B&l{V
afx_msg void OnBrowse(); uznoyj6g
afx_msg void OnChange(); .jU|gf:x
//}}AFX_MSG v YRt2({}Z
DECLARE_MESSAGE_MAP() +zFV~]b
}; xFsB?d
#endif kWZ/ej
jOoIF/So
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file "|.+L
#include "stdafx.h" *=-__|t
#include "Capture.h" WmT}t
#include "CaptureDlg.h" $$2S*qY
#include <windowsx.h>
At`1)
#pragma comment(lib,"hook.lib") % j[O&[s}
#ifdef _DEBUG ,W)IVc
#define new DEBUG_NEW s=^r/Sz902
#undef THIS_FILE u^#4G7<
static char THIS_FILE[] = __FILE__; 33#7U+~]@
#endif gFWEodx,9
#define IDM_SHELL WM_USER+1 {Y3_I\H8{
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); &%f ]-=~
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); 3bg4# c
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; ^D W#
class CAboutDlg : public CDialog /(hP7_]`2
{ bqg]DO$*
public: ;
McIxvj
CAboutDlg(); r85Xa'hh
// Dialog Data ,?0-=o
//{{AFX_DATA(CAboutDlg) F:*[
enum { IDD = IDD_ABOUTBOX }; LyJTK1]#
//}}AFX_DATA a@5xz)
// ClassWizard generated virtual function overrides 877EKvsiC
//{{AFX_VIRTUAL(CAboutDlg) q
G :jnl
protected: j=xtnIq
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support \U)2
Tg
//}}AFX_VIRTUAL @yU!sE:
// Implementation h}anTFKP
protected: w-0O j
//{{AFX_MSG(CAboutDlg) t6<sNzF&
//}}AFX_MSG /XWPN(JC?
DECLARE_MESSAGE_MAP() Ie^Dn!0S
}; W%cj39$
rj2r# {[
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) Vq .!(x
{ Kc JP^
//{{AFX_DATA_INIT(CAboutDlg) c:?#zX
//}}AFX_DATA_INIT %vf2||a$BS
} v
GR
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6mI_Q2
void CAboutDlg::DoDataExchange(CDataExchange* pDX) |l6<GWG+
{ O]Ry3j
CDialog::DoDataExchange(pDX); 5O;a/q8"
//{{AFX_DATA_MAP(CAboutDlg) uhC=
//}}AFX_DATA_MAP #FQm/Q<0
} Kh:#S|
;G%wc!
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) [5RFQ!
//{{AFX_MSG_MAP(CAboutDlg) we:5gK&
// No message handlers ? !oVf>
//}}AFX_MSG_MAP /+<%,c$n
END_MESSAGE_MAP() 8}"f|6Wm
fncwe ';?
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) FfD
,cDs
: CDialog(CCaptureDlg::IDD, pParent) 7kX7\[zN
{ 2vh!pez_
//{{AFX_DATA_INIT(CCaptureDlg) JL.ydH79
m_bControl = FALSE; (:fE _H2z
m_bAlt = FALSE; z~}StCH(
m_bShift = FALSE; 7+D'W7Yx
m_Path = _T("c:\\"); j^aQ>(t(9
m_Number = _T("0 picture captured."); D)O6|DiO
nCount=0; 0'V-
bRegistered=FALSE; _ pH6uuB
bTray=FALSE; A5.'h<
//}}AFX_DATA_INIT (.quX@w"m
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 ,rH)}C<Q+
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); &-8-xw#.
} ~P]HG;$?n
-hG 9
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) r_g\_y7ua
{ Cb@S </b
CDialog::DoDataExchange(pDX); ohc/.5Kl
//{{AFX_DATA_MAP(CCaptureDlg) S0Bl?XsD_
DDX_Control(pDX, IDC_KEY, m_Key); _ntW}})K
DDX_Check(pDX, IDC_CONTROL, m_bControl); I(?|Ox9"?
DDX_Check(pDX, IDC_ALT, m_bAlt); ziLr }/tg
DDX_Check(pDX, IDC_SHIFT, m_bShift); pzt Zb
DDX_Text(pDX, IDC_PATH, m_Path); px
[1# *
DDX_Text(pDX, IDC_NUMBER, m_Number); 5QL9w3L
//}}AFX_DATA_MAP -aH?7HV}
} YzhN |!;!k
@KW+?maW
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) _~wV{ yp
//{{AFX_MSG_MAP(CCaptureDlg) QN}3S0
ON_WM_SYSCOMMAND() +3o)L?:g
ON_WM_PAINT() =qS^Wz.
ON_WM_QUERYDRAGICON() DETajf/<F
ON_BN_CLICKED(ID_ABOUT, OnAbout) Z|Lh^G
ON_BN_CLICKED(IDC_BROWSE, OnBrowse)
];b!*Z
ON_BN_CLICKED(ID_CHANGE, OnChange) :i,c<k
//}}AFX_MSG_MAP ,8J*S
END_MESSAGE_MAP() 9$P l'>5
F'5d\ v
BOOL CCaptureDlg::OnInitDialog() :`>+f.)
{ Z z;<P
CDialog::OnInitDialog(); {Jw<<<G
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); W
&0@&U
ASSERT(IDM_ABOUTBOX < 0xF000); Z'>eT)
CMenu* pSysMenu = GetSystemMenu(FALSE); G%p!os\>
if (pSysMenu != NULL) :WfB!4%!
{ B1d%#
CString strAboutMenu; }d~FTre
strAboutMenu.LoadString(IDS_ABOUTBOX); @8<uAu%
if (!strAboutMenu.IsEmpty()) X^
^?}>t[
{ SbPjU50
pSysMenu->AppendMenu(MF_SEPARATOR); Z'EO
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); /qkIoF2
} X,!OWz:[
} B'gk/^6$eg
SetIcon(m_hIcon, TRUE); // Set big icon $MJDB
SetIcon(m_hIcon, FALSE); // Set small icon [^(R1K
m_Key.SetCurSel(0); >e$^#\D
RegisterHotkey(); h4B#T'b
CMenu* pMenu=GetSystemMenu(FALSE); TNFm7}=
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); L$u&~"z-
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); { Sliy'
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); aD/,c1
return TRUE; // return TRUE unless you set the focus to a control <R~~yW:H
} *Xtc`XH
0p>:rU~
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) 6B;_uIq5
{ P=sK+}5`q
if ((nID & 0xFFF0) == IDM_ABOUTBOX) dVmAMQk.g
{ <1g 1hqK3
CAboutDlg dlgAbout; E-U;8cOMv
dlgAbout.DoModal(); SK c
T
} ]g-qWSKU
else J|2Hqd
{ U*R~w5W.[
CDialog::OnSysCommand(nID, lParam); E=1/
} z7Rcnr;
} ,?~UpsUx
,md7.z]U~
void CCaptureDlg::OnPaint() : {N3o:
{ DHumBnQ
if (IsIconic()) !,JT91
{ /DG`Hg
CPaintDC dc(this); // device context for painting U9p.Dh~)vG
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); x{`<);CQ
// Center icon in client rectangle |7Xpb
int cxIcon = GetSystemMetrics(SM_CXICON); u FYQ^
int cyIcon = GetSystemMetrics(SM_CYICON); 7E75s)KH
CRect rect; !qGx(D{\
GetClientRect(&rect); I`$I0
int x = (rect.Width() - cxIcon + 1) / 2; hIO4%RQj_
int y = (rect.Height() - cyIcon + 1) / 2; Z=t#*"J
// Draw the icon #&2N,M!Q
dc.DrawIcon(x, y, m_hIcon); sv{0XVn+^
} ^Lv^W
else q;a*gqt
{ yE|}
r
CDialog::OnPaint(); z.9FDQLp
} )Q
} +uiH0iGS
,Qi|g'a
HCURSOR CCaptureDlg::OnQueryDragIcon() PN^1
{ I'%H:53^0
return (HCURSOR) m_hIcon; rPGE-d3
} <:;:*s3]
twHM~cTS
void CCaptureDlg::OnCancel() ~S=fMv^BR
{ [@)z $W
if(bTray) gJFpEA {
DeleteIcon(); $*)(8C l
CDialog::OnCancel(); 10I`AjF0
} b;;Kxi:7$}
&{4Mo,x
void CCaptureDlg::OnAbout() }L7F
g%,
{ J'^$|/Q
CAboutDlg dlg; "T1#*"{j
dlg.DoModal(); iN/!k.ybW}
} [BR}4(7
RJsG]`
void CCaptureDlg::OnBrowse() `"=L
{ aU8Ti8A>
CString str; s1vYZ
BROWSEINFO bi; NG W{Z~l
char name[MAX_PATH]; "JLhOTPaHf
ZeroMemory(&bi,sizeof(BROWSEINFO)); |VR5Q(d
bi.hwndOwner=GetSafeHwnd(); E?h2e~ ,]
bi.pszDisplayName=name; GGQ(|?w
bi.lpszTitle="Select folder"; 'W2$wN+P
bi.ulFlags=BIF_RETURNONLYFSDIRS; TNT"2FoBd
LPITEMIDLIST idl=SHBrowseForFolder(&bi); GKx,6E#JM
if(idl==NULL) @P5@&G
return; VJtTbt;>
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); <9.7 gwzE
str.ReleaseBuffer(); D&6Qk&>
m_Path=str; I
3,e)Z
if(str.GetAt(str.GetLength()-1)!='\\') DoB3_=yJ+
m_Path+="\\"; MG5Sn*(C
UpdateData(FALSE); W]Tt8
} iK:qPrk-
-L50kk>h
void CCaptureDlg::SaveBmp() P<JkRX
{ e}yu<~v_
CDC dc; }xlmsOHuI
dc.CreateDC("DISPLAY",NULL,NULL,NULL); j{-7Pf8A
CBitmap bm; ;OCI.S8
int Width=GetSystemMetrics(SM_CXSCREEN); ~+iJpW
int Height=GetSystemMetrics(SM_CYSCREEN); KPe.AK,8
bm.CreateCompatibleBitmap(&dc,Width,Height); R^kv!x;h
CDC tdc;
*P\_:>bV(
tdc.CreateCompatibleDC(&dc); {s'_zSz
CBitmap*pOld=tdc.SelectObject(&bm); p6l@O3
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); TvG:T{jwy
tdc.SelectObject(pOld); 3b[+m}UWQ
BITMAP btm; D!$ =oK
bm.GetBitmap(&btm); Vyq<T(5
DWORD size=btm.bmWidthBytes*btm.bmHeight; ,u^0V"hJ
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); #|1QA3KzO
BITMAPINFOHEADER bih; =y]b|"s~2
bih.biBitCount=btm.bmBitsPixel; R9-JjG2v
bih.biClrImportant=0; eh/OCzWH
bih.biClrUsed=0; ]S aH/$
bih.biCompression=0; pV|?dQ
bih.biHeight=btm.bmHeight; $M<