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:
S7=Bd[4
UH]l9Aq$P 一、实现方法
9!T[Z/}T *j]9vktH 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
eL^.,H0 NxjB/N
#pragma data_seg("shareddata")
e&7JpT HHOOK hHook =NULL; //钩子句柄
/[O(ea$U UINT nHookCount =0; //挂接的程序数目
PH `9MXh static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
="x\`+U static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
^m?KRm2 static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
P9=?zh6G. static int KeyCount =0;
W)9K`hM6 static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
d_4T}%q #pragma data_seg()
Vm%1> '& $P>`m$(8 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。
${+ @gJ+S cU0s
p DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
9[1`jtm j]*j}%hz BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
5V5%/FUm cKey,UCHAR cMask)
TftHwe):V {
+SsK21f"r BOOL bAdded=FALSE;
|o,8V p for(int index=0;index<MAX_KEY;index++){
+# GQ, if(hCallWnd[index]==0){
=g/{%; hCallWnd[index]=hWnd;
kHXL8k#T HotKey[index]=cKey;
SfgU`eF%B HotKeyMask[index]=cMask;
!
vP[;6 bAdded=TRUE;
C3< m7h KeyCount++;
)\sc83L break;
hy}8Aji& }
hfnN@Kg?B} }
_$=
_du return bAdded;
.gG1kW A- }
R>,:A%?^b5 //删除热键
&n6$rBr% BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
hJwC~HG5 {
D_/^+H]1 BOOL bRemoved=FALSE;
+6UVn\9Q for(int index=0;index<MAX_KEY;index++){
At flf2 K if(hCallWnd[index]==hWnd){
S>.SSXlM if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
Q@
2i~Qo[ hCallWnd[index]=NULL;
(Q%'N3gk HotKey[index]=0;
~\=1'D^6CK HotKeyMask[index]=0;
7:9.&W/KE bRemoved=TRUE;
L !=4N!j KeyCount--;
_7IKzUn9g[ break;
XEn*?.e }
_{R=B8Zz\ }
'&.# }
:>D[n1v return bRemoved;
#[zI5)Meh }
ZZcEt R&|mdY8 t<~ $ DLL中的钩子函数如下:
D|rFu dY@WI[yog LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
a["2VY6Eq@ {
vJ\pR~? BOOL bProcessed=FALSE;
N` aF{3[ if(HC_ACTION==nCode)
a;QMAd! {
rA2g& if((lParam&0xc0000000)==0xc0000000){// 有键松开
>tO`r.5u9 switch(wParam)
RY c!~Wh~Y {
t]$P 1*I case VK_MENU:
Eq$&qV-?( MaskBits&=~ALTBIT;
w4W_iaU break;
vz^<YZMu case VK_CONTROL:
q-]`CW]n MaskBits&=~CTRLBIT;
*H?!;u=8 break;
Gp4A.\7 case VK_SHIFT:
N5]0/,I} MaskBits&=~SHIFTBIT;
}b=}uiR# break;
:T]o) default: //judge the key and send message
xEf'Bmebk break;
VYt!U }
sXi=70o for(int index=0;index<MAX_KEY;index++){
}-~X4u# if(hCallWnd[index]==NULL)
yHHt(GM|o continue;
#{k|I$ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
f>piHh? {
h3*Zfl<] SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
3pK*~VK bProcessed=TRUE;
L:_bg8eD# }
u:m]CPz }
Z9575CI< }
9:`(Q3Ei else if((lParam&0xc000ffff)==1){ //有键按下
*Ho/ZYj3 switch(wParam)
.so[I {
jy giG&H case VK_MENU:
=+-Yxh|* MaskBits|=ALTBIT;
jeGj<m break;
]wKz E4Z/ case VK_CONTROL:
"I=\[l8t MaskBits|=CTRLBIT;
t5'V6nv break;
Nluv/?< case VK_SHIFT:
Pcu#lWC$ MaskBits|=SHIFTBIT;
$aN-Y?U% break;
N@Y ljz| default: //judge the key and send message
)RO<o O break;
~4s'0 w^ }
KN tt for(int index=0;index<MAX_KEY;index++){
cx}Q2S if(hCallWnd[index]==NULL)
$/=nU*pd continue;
4m*M,# mV if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
GN!qyT {
F)+{AQL SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
d}JP!xf% bProcessed=TRUE;
6KVnnK }
/ODXV`3QYI }
mp9{m`Jb* }
G:pEE:W[ if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
h$.:Uj8/ for(int index=0;index<MAX_KEY;index++){
9lGOWRxR) if(hCallWnd[index]==NULL)
jM$`(Y continue;
3GuH857ov if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
ax{ ;:fW SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
Y$Q|J4z //lParam的意义可看MSDN中WM_KEYDOWN部分
y`$Q\}fS }
FBpH21|/y }
l5g$vh\aQ] }
U5-@2YcH return CallNextHookEx( hHook, nCode, wParam, lParam );
d'/TdVM }
J|X
6j&- $ &P>r 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:
[5uRS}! A |3tI BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
G7)Fk%> BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
p=C%Hmd5E m;D- u>o 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:
Wm);C~Le $KLD2BAL LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
I! > \#K {
{X[ HCfJd if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
Ux#x#N {
Qt,M!i, //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
HAv{R!* SaveBmp();
"=6v&G]U4 return FALSE;
E\IlF 6 }
n+BJxu? …… //其它处理及默认处理
3/b;7\M }
+,yK;^b zoDH` h_ yuDZ~0]R 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。
TYlbU< I
j$lDJS 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。
,_X/Gb6) 59zENUYl 二、编程步骤
zH>hx5,k'X @#P,d5^G
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";
vjQb%/LWl ?Q-h n:F) 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
(`6T&>(4 9elga"4:' 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;
OKi\zS vTaJqEE 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;
'Fs)Rx}\0 KAsS[ 5、 添加代码,编译运行程序。
ovwQ2TuK GEEW?8 三、程序代码
uA$<\fnz m85WA
#
` ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
?x+Z)`w_ #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
O/.Uh`T`6 #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
*dvDap|8W #if _MSC_VER > 1000
8a_[B~ #pragma once
v3GwD00 #endif // _MSC_VER > 1000
M@3"<[g #ifndef __AFXWIN_H__
@ JvPx 0 #error include 'stdafx.h' before including this file for PCH
@h*fFiY&{ #endif
HLBkR>e #include "resource.h" // main symbols
?%VI{[y#> class CHookApp : public CWinApp
WWL4`s {
jS;J:$>^ public:
/s-A?lw^2 CHookApp();
>yXN,5d[ // Overrides
2P]L9'N{Y // ClassWizard generated virtual function overrides
CH
fVQ|!\ //{{AFX_VIRTUAL(CHookApp)
:>aQ~1f>] public:
#-8\JEn virtual BOOL InitInstance();
MwfOy@|N virtual int ExitInstance();
'{[5M!B //}}AFX_VIRTUAL
w~#nYM=fP! //{{AFX_MSG(CHookApp)
<,AS8^$X[ // NOTE - the ClassWizard will add and remove member functions here.
_DrJVC~6@ // DO NOT EDIT what you see in these blocks of generated code !
=l.+,|ZH! //}}AFX_MSG
[HN|\afz DECLARE_MESSAGE_MAP()
D;I6Q1I };
0W3i() LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
>(y<0
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
gtYAHi BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
`\X+ Ud| BOOL InitHotkey();
3:{yJdpg BOOL UnInit();
U~W?s(Cy% #endif
urvduE (mtoA#X1:h //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
s;1]tD #include "stdafx.h"
S,U
Pl}KF #include "hook.h"
`fNG$ODL #include <windowsx.h>
t6BHGX{o #ifdef _DEBUG
\`, [)` #define new DEBUG_NEW
bsd99-_(4 #undef THIS_FILE
-!0_:m3 static char THIS_FILE[] = __FILE__;
kNT}dv]< #endif
VyRsPg[( #define MAX_KEY 100
v4RlLgdS% #define CTRLBIT 0x04
x+]!m/ #define ALTBIT 0x02
BC,.^"fA6 #define SHIFTBIT 0x01
t+?P^Ok #pragma data_seg("shareddata")
.XkMk|t8 HHOOK hHook =NULL;
lQfL3`X! UINT nHookCount =0;
.>wv\i[p static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
=?h~.lo static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
7 Sa1;%R static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
}|B=h static int KeyCount =0;
2"fO6!hh static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
^'p|!`: #pragma data_seg()
A~Xq,BxCV HINSTANCE hins;
zZiJ 9 e void VerifyWindow();
m=Q[\.Ra BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
<*t4D-os //{{AFX_MSG_MAP(CHookApp)
U!XS;a) // NOTE - the ClassWizard will add and remove mapping macros here.
A:y.s;<L0 // DO NOT EDIT what you see in these blocks of generated code!
c}[+h5 //}}AFX_MSG_MAP
5/gDK+%4D( END_MESSAGE_MAP()
dq IlD!
eZr&x~]
-w CHookApp::CHookApp()
=<@\,xN>C
{
UZEI:k,dv // TODO: add construction code here,
x f4{r+ // Place all significant initialization in InitInstance
$
n,Z }
F`nb21{0y& QQe;1O CHookApp theApp;
GpbC
M~x LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
KOg?FmD {
XhdSFxW} BOOL bProcessed=FALSE;
r-kMLw/)
if(HC_ACTION==nCode)
mp~{W {
-[OXSaf6 if((lParam&0xc0000000)==0xc0000000){// Key up
T@%m7 |P switch(wParam)
g(O;{Q_ {
;WT{|z case VK_MENU:
m,')&{Rd MaskBits&=~ALTBIT;
24Z]%+b*E break;
Pv<FLo%u< case VK_CONTROL:
Jdy<w&S MaskBits&=~CTRLBIT;
1Uf*^WW4 break;
+Z!;P
Z6 case VK_SHIFT:
=2y8CgLj MaskBits&=~SHIFTBIT;
\n9A^v`F/ break;
#'OaKt?Z) default: //judge the key and send message
xt4)Ya break;
fag^7r z }
M,3wmW&d6 for(int index=0;index<MAX_KEY;index++){
DWt*jX * if(hCallWnd[index]==NULL)
h{lDxOH* continue;
0aR,H[r[? if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
i`)!X:j {
2JmZ{ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
u)Q;8$` bProcessed=TRUE;
yBLUNIr }
^*R(!P^ }
5&CDHc7Oj }
t ]c{c#N/ else if((lParam&0xc000ffff)==1){ //Key down
%lr|xX switch(wParam)
JO@Bf {
5/m$)wE case VK_MENU:
|m,VTViv;i MaskBits|=ALTBIT;
Y{ f7
f'_ break;
1 7hTr case VK_CONTROL:
DhI>p0* T MaskBits|=CTRLBIT;
K:yr-#(P/ break;
%'L;FPxB case VK_SHIFT:
d0er^ ~ MaskBits|=SHIFTBIT;
ly4Qg\l break;
ZF#Rej? default: //judge the key and send message
H L<s@kEZ break;
v7trr W} }
Gie@JX for(int index=0;index<MAX_KEY;index++)
P\~{3U {
BOf1J1 if(hCallWnd[index]==NULL)
N~=A continue;
Jd
3@cLCe- if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
@?B6aD|jE {
NB8& SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
9w;?- bProcessed=TRUE;
8{&["? }
O>DNC-m)i{ }
d<o.o?Vc }
i6no;}j if(!bProcessed){
{LE&ylE for(int index=0;index<MAX_KEY;index++){
v:ER4 if(hCallWnd[index]==NULL)
h:qHR]
8dZ continue;
o96:4j4 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
9\O(n> SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
eE:&qy^ }
"/x_>ui1F }
"/%89 HMD }
"HQF.#\# return CallNextHookEx( hHook, nCode, wParam, lParam );
=_=*OEgO] }
vahoSc;sw 2P~)I)3V BOOL InitHotkey()
18!VO4u\I {
/NBTvTI if(hHook!=NULL){
3(lVmfk nHookCount++;
IS_Su;w>4 return TRUE;
LPE) }
SN]LeXesS else
z-u?s`k** hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
]W9B6G_ if(hHook!=NULL)
T |"`8mG nHookCount++;
m/${8 return (hHook!=NULL);
ubGs/Vzye }
T)\NkM& BOOL UnInit()
|4SW[>WT: {
w7Dt1axB if(nHookCount>1){
"n- pl nHookCount--;
q.oLmX return TRUE;
( tn<
VK. }
\|+/0USn BOOL unhooked = UnhookWindowsHookEx(hHook);
.hz2&9Ow if(unhooked==TRUE){
|`]oc,1h@ nHookCount=0;
ePA;:8)_j hHook=NULL;
nm):SEkC }
c f*zejbw return unhooked;
dB)[O9K) }
%,? vyY #<#%>Y^ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
ZgF/;8!~V- {
76MsrOv55 BOOL bAdded=FALSE;
1_3?R}$Wl for(int index=0;index<MAX_KEY;index++){
{8m1dEC^@Q if(hCallWnd[index]==0){
_Y#Bm/* hCallWnd[index]=hWnd;
{%7<" HotKey[index]=cKey;
~I$}# HotKeyMask[index]=cMask;
j.&
;c'V$. bAdded=TRUE;
>h7$v~nra KeyCount++;
T&/_e
break;
nLd~2qBuv }
&z ksRX }
>UN vkQ: return bAdded;
hWxT ! }
84Zgo=P} 5;
f\0<- BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
YN^jm {
l\aUresm BOOL bRemoved=FALSE;
`vEqj v for(int index=0;index<MAX_KEY;index++){
1f;or_f#k? if(hCallWnd[index]==hWnd){
,9vJtP+T+! if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
}xJR.]).KW hCallWnd[index]=NULL;
jZ#UUnR% HotKey[index]=0;
=c]a
{|W? HotKeyMask[index]=0;
QK7e|M bRemoved=TRUE;
7vNtv9 KeyCount--;
}} # be break;
uN(b.5y }
d#7]hF }
=M7PvH'" }
j@SYXKL~ return bRemoved;
@#CF".fuN> }
x_|>n<Z x/_dW void VerifyWindow()
3.~h6r5- {
ex0oAt^ for(int i=0;i<MAX_KEY;i++){
,5:![ if(hCallWnd
!=NULL){ ;"SZ}
if(!IsWindow(hCallWnd)){ LV\ieM
hCallWnd=NULL; A?'
H[2]w"
HotKey=0; i\vpGlx
HotKeyMask=0; |Z!@'YB
KeyCount--; uZ<%kV1B
} ;,v.(Z ic
} gE1|lY$NL
} Mb~~A5
} A{1
\f*
>F~ITk5`Oo
BOOL CHookApp::InitInstance() O&52o]k5l
{ *f?S5.
AFX_MANAGE_STATE(AfxGetStaticModuleState()); 1oB$u!6P
hins=AfxGetInstanceHandle(); -Sp/fjlq/
InitHotkey(); =!YP$hf Y
return CWinApp::InitInstance(); bu_/R~&3{
} YV4
:8At1
MN\i-vAL8
int CHookApp::ExitInstance() PRZ8X{h
{ yW{mK
VerifyWindow(); *b:u*`@
UnInit(); e$H|MdYIA
return CWinApp::ExitInstance(); q _19&;&
} Yu1QcFuy
a" ^#!G<+
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file TG4^_nRl
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) gh'kUZG
a
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ \+G.]|" Y
#if _MSC_VER > 1000 7
TmK
#pragma once 8V,"Id][
#endif // _MSC_VER > 1000 7t`E@dm
T^d#hl.U
class CCaptureDlg : public CDialog 2'|XtSj
{ |1lf(\T_
// Construction 87+.pM|t%
public: F:M/z#:~
BOOL bTray; n$IWoIdbGN
BOOL bRegistered; *&h6*zP?
BOOL RegisterHotkey(); nrI"k2oA@
UCHAR cKey; +<GrRYbC
UCHAR cMask; 7KeXWW/ d
void DeleteIcon();
!,Qm
void AddIcon(); SQKi2\8w
UINT nCount; <|B$dz?r
void SaveBmp(); u"*J[M~
CCaptureDlg(CWnd* pParent = NULL); // standard constructor ^M[#^wv,
// Dialog Data =A$Lgk>|
//{{AFX_DATA(CCaptureDlg) GA(OK-WUd
enum { IDD = IDD_CAPTURE_DIALOG }; 4P`PmQ=GQh
CComboBox m_Key; 8I<_w4fC
BOOL m_bControl; <=$rU232}
BOOL m_bAlt; SgyqmYTvZw
BOOL m_bShift; 23)F-.C}j
CString m_Path; E1^aAlVSD
CString m_Number; (_s;aK
//}}AFX_DATA B,r5kQI4
// ClassWizard generated virtual function overrides V[4(~,9
//{{AFX_VIRTUAL(CCaptureDlg) KSF5)CZ5
public: G% o7BX
virtual BOOL PreTranslateMessage(MSG* pMsg); H]Y#pLu|
protected: Tavtr9L0XY
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support RA#\x.
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); 6.k^m&-A
//}}AFX_VIRTUAL -6AOK<kfI
// Implementation 9cl{hdP{
protected: Z@<q/2).|
HICON m_hIcon; }m9S(Wal
// Generated message map functions +dDJes!]
//{{AFX_MSG(CCaptureDlg) <m~T>Ql1
virtual BOOL OnInitDialog(); H<v c\r
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); |*lH9lWJ
afx_msg void OnPaint(); A$%@fO.b
afx_msg HCURSOR OnQueryDragIcon(); &uv>'S#%
virtual void OnCancel(); :yd=No@
afx_msg void OnAbout(); 5wT',U"+
afx_msg void OnBrowse(); l0eANB%Y=@
afx_msg void OnChange(); 58M'r{8_
//}}AFX_MSG I[tAT[ <
DECLARE_MESSAGE_MAP() >&*6Fqd
}; 0Ei\VVK>
#endif #&;m<%
N;e;4,_ n
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file rdORNlK&
#include "stdafx.h" s4MNVT
#include "Capture.h" VC/R)%@%
#include "CaptureDlg.h" hdo+Qezu:
#include <windowsx.h> }".\
4B$n
#pragma comment(lib,"hook.lib") tpN]evp|
#ifdef _DEBUG B)(p9]q
#define new DEBUG_NEW 9m<wcZ
#undef THIS_FILE P}ehNt*($
static char THIS_FILE[] = __FILE__; R1]v}f_I"
#endif 3N(8|wh
#define IDM_SHELL WM_USER+1 k/$Ja;
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); SS>:Sw
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); h<PYE]?l
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; *O2^{ C
class CAboutDlg : public CDialog Se!gs>
{ ( 1QdZD|
public: _Ym&UY.u#
CAboutDlg(); *O"%tp6
// Dialog Data !X \Sp}
//{{AFX_DATA(CAboutDlg) c@0l-R{q
enum { IDD = IDD_ABOUTBOX }; ek Y?
//}}AFX_DATA q$e
T!'x
// ClassWizard generated virtual function overrides $K=K?BV[
//{{AFX_VIRTUAL(CAboutDlg) $#6Fnhh}
protected: /ig^7+#
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support sg'Y4
//}}AFX_VIRTUAL k@'?"CP\Xq
// Implementation @\x,;!N@
protected: &6|6J1c8
//{{AFX_MSG(CAboutDlg) \#h})`
//}}AFX_MSG `DU'wB
DECLARE_MESSAGE_MAP() Bbn832iMUY
}; #o(?g-3
*!-}lc^4
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) {|8:U}<#h
{ 5Ws:Ei{R
//{{AFX_DATA_INIT(CAboutDlg) 842Mydom
//}}AFX_DATA_INIT E9~&f^f
} {Sd@u$&
mSVX4XW<
void CAboutDlg::DoDataExchange(CDataExchange* pDX) `<]P"G
{ DzX6U[=
CDialog::DoDataExchange(pDX); v.~Nv@+kR
//{{AFX_DATA_MAP(CAboutDlg)
jgZX~D
//}}AFX_DATA_MAP :Su 5
} ~FK+bF?%
7LyV`6{70
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) LaAgoarN
//{{AFX_MSG_MAP(CAboutDlg) HQ-N!pf9
// No message handlers &;uGIk>s
//}}AFX_MSG_MAP QjW~6Z.tI
END_MESSAGE_MAP() VfJX<e=k
ss|6_H =
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) VC_3 ll]vr
: CDialog(CCaptureDlg::IDD, pParent) ;&7qw69k
{ .{-iq(3
//{{AFX_DATA_INIT(CCaptureDlg) +#i,87
m_bControl = FALSE; il `C,CD
m_bAlt = FALSE; 9fr&Yb=_o@
m_bShift = FALSE; ^qSf
m_Path = _T("c:\\"); IArpCF/"8
m_Number = _T("0 picture captured."); O(c4iWm
nCount=0; {<Xo,U7y
bRegistered=FALSE; cSH tl<UY
bTray=FALSE; B<|q{D$N/
//}}AFX_DATA_INIT l1`c?Y
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 @eG#%6">
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); ^YB\\a9
} Vt$ $ceu
l")o!N?
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) 4F 6ju6w
{ Ri%Of:zZ
CDialog::DoDataExchange(pDX); "~i#9L/H
//{{AFX_DATA_MAP(CCaptureDlg) :#"OCXr
DDX_Control(pDX, IDC_KEY, m_Key); FrE/K_L
DDX_Check(pDX, IDC_CONTROL, m_bControl); i >/@]2
DDX_Check(pDX, IDC_ALT, m_bAlt); st1M.}
DDX_Check(pDX, IDC_SHIFT, m_bShift); r(/P||`l
DDX_Text(pDX, IDC_PATH, m_Path); :u|UVp5
DDX_Text(pDX, IDC_NUMBER, m_Number); pqNoL*
H
//}}AFX_DATA_MAP Di5Op(S((
} B=nx8s
% 'L=
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) (t]R#2{
//{{AFX_MSG_MAP(CCaptureDlg) '
m#Ymp
ON_WM_SYSCOMMAND() '&o>
%V
ON_WM_PAINT() ]>]H:NEq
ON_WM_QUERYDRAGICON() ;Vtpq3
ON_BN_CLICKED(ID_ABOUT, OnAbout) S+E3;' H
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) .jG.90
ON_BN_CLICKED(ID_CHANGE, OnChange) 8)2u@sx%
//}}AFX_MSG_MAP ES:p^/ =*
END_MESSAGE_MAP() *^&iw$Qx3
36D,el In
BOOL CCaptureDlg::OnInitDialog() Xb07 l3UG
{ s$=B~l
CDialog::OnInitDialog();
fjeE.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); E rRMiT
ASSERT(IDM_ABOUTBOX < 0xF000); ;tIIEc
CMenu* pSysMenu = GetSystemMenu(FALSE); 0$dY;,Q .
if (pSysMenu != NULL) 'rcsK
{ &<;nl^
CString strAboutMenu;
h hNFp
strAboutMenu.LoadString(IDS_ABOUTBOX); y5opdIaT
if (!strAboutMenu.IsEmpty()) =*O9)$b
{ n*]x02:LjZ
pSysMenu->AppendMenu(MF_SEPARATOR); A5J#x6@
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); /(}l[jf
} sjgxx7
} v(WL 3[y;
SetIcon(m_hIcon, TRUE); // Set big icon u>-uRz<)t
SetIcon(m_hIcon, FALSE); // Set small icon +\]S<T*;
m_Key.SetCurSel(0); )7 BNzj"~
RegisterHotkey(); i\c^h;wX
CMenu* pMenu=GetSystemMenu(FALSE); ]`+"o[
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); Ub-k<]yZ
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); 9R<J$e
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); ,HjHt\!~<
return TRUE; // return TRUE unless you set the focus to a control /)HEx&SQmZ
} ^SES')x
vN[m5)aT
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) <H(AS'
{ #
v/aI*Rl
if ((nID & 0xFFF0) == IDM_ABOUTBOX) b9!J}hto,
{ #p^pvdvh3
CAboutDlg dlgAbout; RI].LB_
dlgAbout.DoModal(); Tr+Y@]"
} os0"haOI9h
else 'G
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{ k1
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CDialog::OnSysCommand(nID, lParam); i2 Iu2
} sZ(Q4)r
} ?_`P;}4#
n ;fTx
void CCaptureDlg::OnPaint() vmQ
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{ Ymh2qGcj]8
if (IsIconic()) UHm+5%ZC
{ L&F\"q9q71
CPaintDC dc(this); // device context for painting ;@$, "
P
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); nHL>}Yg
// Center icon in client rectangle UM;bVf?
int cxIcon = GetSystemMetrics(SM_CXICON);
Xv;ZA a
int cyIcon = GetSystemMetrics(SM_CYICON); D_`)T;<Sp
CRect rect; XwqfWd_
GetClientRect(&rect); 7*W$GCd8
int x = (rect.Width() - cxIcon + 1) / 2; /t2<OU9
int y = (rect.Height() - cyIcon + 1) / 2; 4rCqN.J
// Draw the icon e2H'uMy;&
dc.DrawIcon(x, y, m_hIcon); !!Gi.VL
} vnT
else G7#~=W
2M
{ xn#I7]]G
CDialog::OnPaint(); -)c"cgx.
} .*..pf|/
} ?J1&,'&
Le+8s LE`Y
HCURSOR CCaptureDlg::OnQueryDragIcon() +]2~@=<@
{ MkIO0&0O
return (HCURSOR) m_hIcon; C3
c|@7FU
} h3ZL0Fi*
G?X,Y\Lp
void CCaptureDlg::OnCancel() [}Yci:P_ +
{ j;c^pLUP
if(bTray) Q14;G<l-
DeleteIcon(); |r!Qhb.!
CDialog::OnCancel(); ;C@^wI
} .ceU @^
Ptxc9~k
void CCaptureDlg::OnAbout() LGue=Hkp
{ g{.@|;d<p
CAboutDlg dlg; [UrS%]OSR
dlg.DoModal(); ~.=HN}E
} rY+1s^F
|0Ug~jKU
void CCaptureDlg::OnBrowse() 7o%|R2mL}
{ "U~@o4u;
CString str; <cd%n-
BROWSEINFO bi; c35vjYQx0
char name[MAX_PATH]; o%s}jBo}
ZeroMemory(&bi,sizeof(BROWSEINFO)); >Qu^{o
bi.hwndOwner=GetSafeHwnd(); R-0Ohj
bi.pszDisplayName=name; J;9QDrl`
bi.lpszTitle="Select folder"; QRix_2+
bi.ulFlags=BIF_RETURNONLYFSDIRS; [_B&7#3>7
LPITEMIDLIST idl=SHBrowseForFolder(&bi); X "r$,~
if(idl==NULL) z:?
<aT
return; 4C*=8oe_
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); nqW:P$
str.ReleaseBuffer(); im%3*bv-
m_Path=str; 2n,73$s
if(str.GetAt(str.GetLength()-1)!='\\') 9O_N
iu0
m_Path+="\\"; QE6-(/
UpdateData(FALSE); --hnv/AjI
} ?a_q!,8:
DFH6.0UW
void CCaptureDlg::SaveBmp() (9lx5
{ WM7/|.HQ
CDC dc; #GJh:#tt^
dc.CreateDC("DISPLAY",NULL,NULL,NULL); y.NArN|%
CBitmap bm; %HS!^j3C%
int Width=GetSystemMetrics(SM_CXSCREEN); _\6(4a`,
int Height=GetSystemMetrics(SM_CYSCREEN); M?CMN.Dw
bm.CreateCompatibleBitmap(&dc,Width,Height); ph+tk5k
CDC tdc; &xT~;R^
tdc.CreateCompatibleDC(&dc); ZX}"
CBitmap*pOld=tdc.SelectObject(&bm); )4C6+63OD&
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); -C]a2
tdc.SelectObject(pOld); ~#Mx&mZ
BITMAP btm; U~c;W@T
bm.GetBitmap(&btm); xL"o)]a=
DWORD size=btm.bmWidthBytes*btm.bmHeight; nlnJJM&J$
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); 7l
EwQ
BITMAPINFOHEADER bih; YA8~O5
bih.biBitCount=btm.bmBitsPixel; YCdxU1V
bih.biClrImportant=0; Z*B(L@H
bih.biClrUsed=0; H( m+rk
bih.biCompression=0; Um|Tf]q
bih.biHeight=btm.bmHeight; |a\TUzq
bih.biPlanes=1; WHT%m|yn
bih.biSize=sizeof(BITMAPINFOHEADER); \C.@ @4{
bih.biSizeImage=size; n[-!Jp[
bih.biWidth=btm.bmWidth; &g {_.n,
bih.biXPelsPerMeter=0; W.<<azi
bih.biYPelsPerMeter=0; p-Btbhv
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); K Hc +
static int filecount=0; e4LNnJU\|
CString name; QQcj"s
name.Format("pict%04d.bmp",filecount++); Ji=iq=S7
name=m_Path+name; Hvk?(\x
BITMAPFILEHEADER bfh; N$b;8F
bfh.bfReserved1=bfh.bfReserved2=0; oa7Hx<Y
bfh.bfType=((WORD)('M'<< 8)|'B'); MPc=cLv
bfh.bfSize=54+size; uwzT? C A6
bfh.bfOffBits=54; I-hhHm<@
CFile bf; H|O}Dsj
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ TD9`SSpP
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); xUoY|$fI
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); Sa~C#[V
bf.WriteHuge(lpData,size); Wg&