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:
2Ima15^+F
wv=U[:Y 一、实现方法
V bNN1'a- a'?LC)^ 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:
ERIF#EY E>:#{% #pragma data_seg("shareddata")
EWq
< B) HHOOK hHook =NULL; //钩子句柄
=iB$4d2 UINT nHookCount =0; //挂接的程序数目
5k?xBk=< static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
:;IZ|hU static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
OB++5Wd static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
9ph>4u(R static int KeyCount =0;
(4IP&^j:\ static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
;kZJnN"y #pragma data_seg()
^E)8Sb9t oTr,zRL 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。
e.Q'l/g ;iQw2XhT 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:
y-S23B( \?|^w. BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
0g
Hd{H= cKey,UCHAR cMask)
,s6lB0 {
B,` `2\B BOOL bAdded=FALSE;
69t6lB#;! for(int index=0;index<MAX_KEY;index++){
\^!<Y\\ if(hCallWnd[index]==0){
3Vk\iJ hCallWnd[index]=hWnd;
uZ+"-Ig HotKey[index]=cKey;
&i6JBZ#~, HotKeyMask[index]=cMask;
A<(Fn_&W bAdded=TRUE;
mR|']^!SE KeyCount++;
"*S_w N% break;
&x4*YMh }
fo<nk|i }
TkIiO> return bAdded;
ks,d4b=-> }
jw/@]f;N //删除热键
m63>P4h? BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
QyrB"_dm {
*|cs_,3 BOOL bRemoved=FALSE;
o#D'"Tn! for(int index=0;index<MAX_KEY;index++){
l\2"u M#7 if(hCallWnd[index]==hWnd){
+i}uRO if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
MlLM
$Y-@ hCallWnd[index]=NULL;
6BZi4:PDx HotKey[index]=0;
7#*`7 K'P! HotKeyMask[index]=0;
#KuBEHr bRemoved=TRUE;
:bCswgd[ KeyCount--;
FTzc,6 break;
sp_19u }
)%
gU }
iQgr8[
SFf }
tVNFulcz$ return bRemoved;
Fr<tk^~/ }
U} Pr1 !
GtF%V e:.D^GFi
DLL中的钩子函数如下:
^`RMf5i1m y>cT{ )E$ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
OLGMy5 {
,,g: x BOOL bProcessed=FALSE;
L"uidd0(g if(HC_ACTION==nCode)
g>a%
gVly {
Ax9A-| if((lParam&0xc0000000)==0xc0000000){// 有键松开
;g?o~ev 8 switch(wParam)
2ppJ;P{k {
Gsy90 case VK_MENU:
1C/Vwf:@ MaskBits&=~ALTBIT;
s-F3(mc( break;
']H*f2y case VK_CONTROL:
&O5&pet MaskBits&=~CTRLBIT;
UI wTf2B break;
51;Bc[)% case VK_SHIFT:
R0nUS<b0 MaskBits&=~SHIFTBIT;
VK|$SY( break;
;Wn0-`_1, default: //judge the key and send message
m$g{& break;
d1NKVMeWr }
/1hcw|cfC for(int index=0;index<MAX_KEY;index++){
y#nyH0U if(hCallWnd[index]==NULL)
D/z*F8'c continue;
K~qKr<) if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
A8ClkLC;I {
m'2EiYX$}\ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
.G/RQn]x} bProcessed=TRUE;
o<g1; }
#BIY[{! }
<}%gZ:Z6g }
xfqU
atC else if((lParam&0xc000ffff)==1){ //有键按下
b^<7@tY switch(wParam)
vs*@)'n0 } {
|e2s{J2 case VK_MENU:
8>:u%+C1c MaskBits|=ALTBIT;
)2F%^<gZ# break;
v5L#H=P case VK_CONTROL:
OuB[[L MaskBits|=CTRLBIT;
}jL4F$wC break;
?cD_\~ case VK_SHIFT:
W"s)s MaskBits|=SHIFTBIT;
*#B"%;Ln break;
2K2*UC`f default: //judge the key and send message
fBPJ8VY break;
_2xYDi }
ho6,&Bp8 for(int index=0;index<MAX_KEY;index++){
+F^X1 if(hCallWnd[index]==NULL)
Y_nlIcu continue;
/ KKA/ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
W\z<p P {
(9+N_dLx~P SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
LhKUZX,P8 bProcessed=TRUE;
^K!R4Y4t }
l
i2/"~l }
:a M@"#F }
>soSOJ[ if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
liTAV9< for(int index=0;index<MAX_KEY;index++){
Cx8
H if(hCallWnd[index]==NULL)
62>/0_m5 continue;
#s-li b if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
!)uXCg9U SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
|d_ rK2 //lParam的意义可看MSDN中WM_KEYDOWN部分
@C5%`{\ }
CdiL{zH\3 }
(9!kKMQW' }
\V9);KAOj return CallNextHookEx( hHook, nCode, wParam, lParam );
58/\ }
s9Bd mD^|# ,+RoJwi m 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:
CIf""gL9 ZmJHLn[B BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
^r~R]stE^ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
}/Y)^ A;Uw
b 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:
F2["Ak NM
.y~~[QF}8 LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
m{0u+obi&w {
'>|5 if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
JPS<e*5 {
hin6cac //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
)1]LoEdm` SaveBmp();
0d=<^wLi^ return FALSE;
&E8fd/s=k }
F84?Mi{r2 …… //其它处理及默认处理
Gh9dv|m=[; }
BGVy
\F< [0hZg \)9R1zp/x 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。
E{6X-C[)v x$tzq+N 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。
=6+j
Po{F bLyG3~P;0 二、编程步骤
-qRO}EF 1Du9N[2'P 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";
dCM*4B< $~*d. 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
T2MX_rt#D quw:4W> 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;
U9p^?\-= E|Z7art 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;
$U/_8^6B0 {01wW1 5、 添加代码,编译运行程序。
q! U'DDEP kXbdR 三、程序代码
S=~8nr/V 8RR6f98FF ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
;F<)BEXC< #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
OT5'c l #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
in6iJ*E@' #if _MSC_VER > 1000
$R<eXDW6: #pragma once
SbW6O_ #endif // _MSC_VER > 1000
lCyp&b#(L #ifndef __AFXWIN_H__
zdUi1 b #error include 'stdafx.h' before including this file for PCH
g#ONtY@*U #endif
"ci<W_lx #include "resource.h" // main symbols
2tqO%8`_ class CHookApp : public CWinApp
%C[ ;& {
N]sX
r public:
v+*l|!v CHookApp();
gZs8BKO // Overrides
BDg6ZI<n // ClassWizard generated virtual function overrides
P!";$]+ //{{AFX_VIRTUAL(CHookApp)
N7xkkAS{ public:
/vB%gqJvX virtual BOOL InitInstance();
!Jj=H()} virtual int ExitInstance();
:8aIj_qds //}}AFX_VIRTUAL
`'[ 7M //{{AFX_MSG(CHookApp)
cZ7b$MZ%9 // NOTE - the ClassWizard will add and remove member functions here.
&7X0 ;< // DO NOT EDIT what you see in these blocks of generated code !
O"mU#3? //}}AFX_MSG
P
+ nT% DECLARE_MESSAGE_MAP()
T`=N^Ca1!` };
BI=Ie? LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
gGU3e(!Uc BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
V@K}'f~ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
ls6ywLP{ BOOL InitHotkey();
8L 9;VY^Y BOOL UnInit();
[M2,bc8SJV #endif
+Z[%+x92 l(zkMR$b8 //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
y\@;s?QL #include "stdafx.h"
TR@$$RrU #include "hook.h"
*.EtdcRo[ #include <windowsx.h>
SJ7>*Sa(u$ #ifdef _DEBUG
R< xxwjt #define new DEBUG_NEW
{\ziy4<II #undef THIS_FILE
a@,tf'Sr static char THIS_FILE[] = __FILE__;
mcDW&jwQ #endif
7XWgY%G #define MAX_KEY 100
mXF
pGo5 s #define CTRLBIT 0x04
^O\tN\g;c #define ALTBIT 0x02
qBX<{[ #define SHIFTBIT 0x01
M7,|+W/RK #pragma data_seg("shareddata")
:N)7SYQT HHOOK hHook =NULL;
}+ #ag:M UINT nHookCount =0;
{Rw~G&vQ static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
O t`}eL- static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
W.:kE|a.g static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
uNhAfZ static int KeyCount =0;
x'JfRz static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
W {dx\+ #pragma data_seg()
N'm:V HINSTANCE hins;
6o A0a\G' void VerifyWindow();
ocgbBE BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
YN>#zr+~ //{{AFX_MSG_MAP(CHookApp)
Bdbw!zRR$ // NOTE - the ClassWizard will add and remove mapping macros here.
EUna_ 4= // DO NOT EDIT what you see in these blocks of generated code!
@1Zf&'/6 //}}AFX_MSG_MAP
1NOz $fW END_MESSAGE_MAP()
NKd@Kp`, <U,T*Ql1x CHookApp::CHookApp()
Y@.JW {
&
bw1 // TODO: add construction code here,
BTd'bD~EA // Place all significant initialization in InitInstance
zLh ~x }
eEc;w# @MB;Ez
v CHookApp theApp;
3UN Jj&-` LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
qo.
6T {
06Hn:IT18 BOOL bProcessed=FALSE;
?ST}0F00} if(HC_ACTION==nCode)
Cq(Xa- {
*10e)rzM if((lParam&0xc0000000)==0xc0000000){// Key up
hU=J^Gi0 switch(wParam)
`chf8 {
nev*TYY?A case VK_MENU:
BEI/OGp MaskBits&=~ALTBIT;
*V"cu break;
IYCKF/2o case VK_CONTROL:
VhW;=y>} MaskBits&=~CTRLBIT;
O5=ggG
break;
dIpt&nH&$ case VK_SHIFT:
EhD|\WLx! MaskBits&=~SHIFTBIT;
=AKW(v break;
q/B+F%QiMQ default: //judge the key and send message
+p cj8K% break;
HRb_ZJz }
%cm5Z^B1" for(int index=0;index<MAX_KEY;index++){
a<Ns C1 if(hCallWnd[index]==NULL)
FQ-(#[ continue;
Maa.>2v< if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
rL,)Tc|" {
YwF6/JA0^ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
=6W:O bProcessed=TRUE;
`r iv`+J{s }
@Op8^8$` }
VG8rd'Z }
O\D({> else if((lParam&0xc000ffff)==1){ //Key down
OUdeQO? switch(wParam)
Qrt8O7&(' {
5~44R@` case VK_MENU:
=:g^_Hy MaskBits|=ALTBIT;
"w'YZO]> break;
@B'Mu:|f case VK_CONTROL:
&
9]KkY= MaskBits|=CTRLBIT;
vXnpx}B break;
Ffxk] o&%c case VK_SHIFT:
(jm.vL&5j MaskBits|=SHIFTBIT;
g~y9j88? break;
sTA/2d default: //judge the key and send message
jo(Q`oxm!> break;
j0%0yb{-^ }
F889JSZ% for(int index=0;index<MAX_KEY;index++)
n% `r {
O\LW
8\M if(hCallWnd[index]==NULL)
b"Mq7&cf continue;
v\Wm[Ld if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
xk*3,J6BK {
wqwJpWIe SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
O7d Fz)$ bProcessed=TRUE;
J@GfO\
o }
ft'iv }
)PG,K4z }
5i/E=D if(!bProcessed){
&CL|q+- for(int index=0;index<MAX_KEY;index++){
,Mhe:^3 if(hCallWnd[index]==NULL)
+_gT|vlU continue;
[[e |GQ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
{a3kn\6H0 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
Y1 P[^ws }
:xw3b)KS }
Vf?#W,5>= }
K7hf m%`N return CallNextHookEx( hHook, nCode, wParam, lParam );
7idi&h" }
+^J-'7Vt z/YMl3$l~ BOOL InitHotkey()
Ib2 @Wi {
B\_u${C if(hHook!=NULL){
)zXyV]xe nHookCount++;
u3wC}Zo return TRUE;
:6u3Mj{ }
s3-ktZ@ else
R1.sq(z` hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
uit-Q5@~ if(hHook!=NULL)
|)qK
g nHookCount++;
{%_j~ return (hHook!=NULL);
TJXraQK-= }
gOyY#]g BOOL UnInit()
QWHy=(! {
<8)s if(nHookCount>1){
%?f:" nHookCount--;
Yg)V*%0n return TRUE;
EyPJvs }
S7kT3zB BOOL unhooked = UnhookWindowsHookEx(hHook);
*>'2$me= if(unhooked==TRUE){
dPx<Dz; nHookCount=0;
}E5#X R hHook=NULL;
s$Zq/l$1x }
^QAiySR`0 return unhooked;
;:Z=%R$wJ }
V+qJrZ,i -2&i)S0R BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
ahtYSz_FM {
h4anr7g{ BOOL bAdded=FALSE;
R|1xXDLm*E for(int index=0;index<MAX_KEY;index++){
s^>lOQ= if(hCallWnd[index]==0){
=#(0)p$EC hCallWnd[index]=hWnd;
5_)@B]~nM HotKey[index]=cKey;
<'[Ku;m HotKeyMask[index]=cMask;
^IGyuj0]jG bAdded=TRUE;
D#7_TKX KeyCount++;
\ CK(;J break;
GVG!sMmnX }
(a
`FS,M }
%l}Q?Z return bAdded;
lRDxIuTK }
f]8!DXEA 2vc\= BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
3@)obb {
IyS" BOOL bRemoved=FALSE;
d=XpO*v,[ for(int index=0;index<MAX_KEY;index++){
2QGMe} if(hCallWnd[index]==hWnd){
WRD
A ` if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
i3Hz"Qs; hCallWnd[index]=NULL;
M!gBmQZ1 HotKey[index]=0;
M
XZq HotKeyMask[index]=0;
)nwZ/&@ bRemoved=TRUE;
ATXF,o1 KeyCount--;
/vjGjb=3U break;
6F`qi:a+ }
wE$s'e }
5"JU?e59M }
F7{R~mS; return bRemoved;
c>ad0xce6 }
1")FWN_K/T p9-0?(] void VerifyWindow()
lC#RNjDp/~ {
G02ox5X for(int i=0;i<MAX_KEY;i++){
$!G` D= if(hCallWnd
!=NULL){ X JY5@I.
if(!IsWindow(hCallWnd)){ 3;*z3;#}
hCallWnd=NULL; H9RGU~q4s[
HotKey=0; AnNPTi
HotKeyMask=0; nr OqH
KeyCount--; k(P3LJcYQ
} -bypuMQ-p
} ;XG]Q<S\
} %}C9
} qZaO&"q
K@HQrv<
BOOL CHookApp::InitInstance() U98_M)-%&
{ P5xI
AFX_MANAGE_STATE(AfxGetStaticModuleState()); =3*Jj`AV
hins=AfxGetInstanceHandle(); n)#Lh
7X"
InitHotkey(); !k,<|8(0
return CWinApp::InitInstance(); M>T[!*nTj
} `(!NYx
u_.HPA
int CHookApp::ExitInstance() ASW4,% cl
{ +Hj/0pp
VerifyWindow(); "u;YI=+
UnInit(); $jG4pPG
return CWinApp::ExitInstance(); O)uOUB
} y"vX~LR
Cxm6TO`-;
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file s~J=<)T*6
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) R:/ha(+
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ ?*H9-2W@
#if _MSC_VER > 1000 7^MX l
#pragma once ,=|4:F9
#endif // _MSC_VER > 1000 s qpGrW.
R"+wih
class CCaptureDlg : public CDialog KiAcA]0
{ ~*}$>@f{[X
// Construction DyfsTx
public: :p>hW!~
BOOL bTray; (a.1M8v+Sg
BOOL bRegistered; 9t K>gwb
BOOL RegisterHotkey(); CISO<z0
UCHAR cKey; b9Y_!Qe
UCHAR cMask; yNa;\UF
void DeleteIcon(); Au.:OeJm
void AddIcon(); `~h4D(n`
UINT nCount; y-9+a7j
void SaveBmp(); y-B=W]E
CCaptureDlg(CWnd* pParent = NULL); // standard constructor |~K(F<;j
// Dialog Data iW;i!,
//{{AFX_DATA(CCaptureDlg) _1|$P|$P.
enum { IDD = IDD_CAPTURE_DIALOG }; >(3\kiYS
CComboBox m_Key; +E5=$`
BOOL m_bControl; !aNh!
BOOL m_bAlt; uzBz}<M=
BOOL m_bShift; CQ^3v09N;~
CString m_Path; {]kaJ{U>
CString m_Number; rzeLx Wt
//}}AFX_DATA mfom=-q3k
// ClassWizard generated virtual function overrides g"hJ{{<
//{{AFX_VIRTUAL(CCaptureDlg) idc4Cf+4
public: W5pb;74|
virtual BOOL PreTranslateMessage(MSG* pMsg); 3[IJhR[
protected: \we\0@v
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support v]"L]/"
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); K84^Oq
//}}AFX_VIRTUAL |<qs
// Implementation nFM@@oA
protected: DN8}glVxV
HICON m_hIcon; 6GL=)0Ah
// Generated message map functions T~xwo
//{{AFX_MSG(CCaptureDlg) 3
hKBc0
virtual BOOL OnInitDialog(); }< 5F
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); C~4PE>YtTv
afx_msg void OnPaint(); 8g~EL{'
afx_msg HCURSOR OnQueryDragIcon(); .Y*f2A.v
virtual void OnCancel(); S*
R,FKg
afx_msg void OnAbout(); [xZU!=
afx_msg void OnBrowse(); [A2`]CE<@
afx_msg void OnChange(); Pm{*.AW1
//}}AFX_MSG {+.r5py
DECLARE_MESSAGE_MAP() DcD{*t?x
}; <skajQQ
#endif FMw&(
"3CJUr:Q
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file {QAv~S>4
#include "stdafx.h" YT#3n
#include "Capture.h" <|B1wa:|
#include "CaptureDlg.h" 'lz"2@4{
#include <windowsx.h> !CTxVLl"F
#pragma comment(lib,"hook.lib") f9u^ R=Ff[
#ifdef _DEBUG N)2f7j4C&
#define new DEBUG_NEW L1{GL #qV
#undef THIS_FILE 5z}w}zdg
static char THIS_FILE[] = __FILE__; AyKMhac
#endif ,:Z^$
#define IDM_SHELL WM_USER+1 }_'IE1bA
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); hfWFD,
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); -Z-f1.Dm5
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; D;}xr_
class CAboutDlg : public CDialog Uz7oL8
{ '9p@vi{\
public: DOS0;^f
CAboutDlg(); ||7x;2e
// Dialog Data BR`ygrfe
//{{AFX_DATA(CAboutDlg) $ ,Ck70_
enum { IDD = IDD_ABOUTBOX }; ^2D1`,|N
//}}AFX_DATA "I6P=]|b
// ClassWizard generated virtual function overrides I=)hWC/
//{{AFX_VIRTUAL(CAboutDlg) s8"8y`u
protected: MM_k
]-7
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support _9 .(a
//}}AFX_VIRTUAL 4rT*tW"U
// Implementation !^#jwRpeN
protected: q%n6K
//{{AFX_MSG(CAboutDlg) BF*kb2"GZ6
//}}AFX_MSG !3n)|~r;K
DECLARE_MESSAGE_MAP() $4kH3+WJ
}; GE;e]Jkjn
mYN7kYR}<`
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) -Xu.1S
{ QZp6YSz.4
//{{AFX_DATA_INIT(CAboutDlg) -C-?`R
//}}AFX_DATA_INIT ;h6v@)#GX
} $n^MD_1!
#4MBoN(3
void CAboutDlg::DoDataExchange(CDataExchange* pDX) :P,sxDlG)
{ s4Sd>D7
CDialog::DoDataExchange(pDX); n~"$^Vr
//{{AFX_DATA_MAP(CAboutDlg) XZ&KR.C,
//}}AFX_DATA_MAP !-2R;yo12
} _\Q^x)w6
KoE8Mp
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 2XTPBZNe
//{{AFX_MSG_MAP(CAboutDlg) H9h@ sSg
// No message handlers B]m@:|Q
//}}AFX_MSG_MAP D']ZlB'K
END_MESSAGE_MAP() j?y LDLj
NaVQ9ku7VW
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) u p.Q>28r
: CDialog(CCaptureDlg::IDD, pParent) /V3=KY`_J
{ &PkLp4mQ
//{{AFX_DATA_INIT(CCaptureDlg) }X x(^Zh
m_bControl = FALSE; b'VV'+|
m_bAlt = FALSE; mRB
m_bShift = FALSE; mNmLyU=d
m_Path = _T("c:\\"); \V9Z#>
m_Number = _T("0 picture captured."); ^w ] /
nCount=0; S3L~~X/=
bRegistered=FALSE; wi9DhVvc 0
bTray=FALSE; f;/QJ
//}}AFX_DATA_INIT xs\!$*R
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 e[sK@jX6
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); *x)Ozfe
} GUF"<k
R!l:O=[<
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) V9ssH87#
{ LL|7rS|o
CDialog::DoDataExchange(pDX); ,J`'Y+7W
//{{AFX_DATA_MAP(CCaptureDlg) nW;g28
DDX_Control(pDX, IDC_KEY, m_Key); aM7uBx\8 5
DDX_Check(pDX, IDC_CONTROL, m_bControl); V([~r,
DDX_Check(pDX, IDC_ALT, m_bAlt); ]skkoM
DDX_Check(pDX, IDC_SHIFT, m_bShift); 5K|"\
DDX_Text(pDX, IDC_PATH, m_Path); P"<U6zM\sP
DDX_Text(pDX, IDC_NUMBER, m_Number); 9f\/\L
//}}AFX_DATA_MAP W8lx~:v
} 5,)Qw
{.yStB.T
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) ]xguBh ]
//{{AFX_MSG_MAP(CCaptureDlg) _fZZ_0\Q
ON_WM_SYSCOMMAND() PjN =k;
ON_WM_PAINT() %,hV[[ @.
ON_WM_QUERYDRAGICON() {O|'U'
ON_BN_CLICKED(ID_ABOUT, OnAbout) ljKrj
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) Rq[ M29
ON_BN_CLICKED(ID_CHANGE, OnChange) q~o,WZG
//}}AFX_MSG_MAP c)@>zto#
END_MESSAGE_MAP() *>VVt8*Et
0flg=U9
BOOL CCaptureDlg::OnInitDialog() gKOOHUCb
{ /m!Cc/Hv
CDialog::OnInitDialog(); &-5_f*{
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); {QCf}@_]h
ASSERT(IDM_ABOUTBOX < 0xF000); ~tOAT;g}q
CMenu* pSysMenu = GetSystemMenu(FALSE); ORu2V#Z[
if (pSysMenu != NULL) P>9aI/d9
{ &K/FyY5
CString strAboutMenu; BL 3gKx.'
strAboutMenu.LoadString(IDS_ABOUTBOX); B75k^ohfj
if (!strAboutMenu.IsEmpty()) l3nrEk
{ MLFKH
pSysMenu->AppendMenu(MF_SEPARATOR); w&xDOyW]
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); YDGS}~m~Q
} ^<X@s1^#
} rpw.]vnn
SetIcon(m_hIcon, TRUE); // Set big icon "QvmqI>
SetIcon(m_hIcon, FALSE); // Set small icon V^Hu3aUx8
m_Key.SetCurSel(0); R0oKbs{
RegisterHotkey(); &sF^Fgg{
CMenu* pMenu=GetSystemMenu(FALSE); r[?1
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); udeoW-_
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); Ew3ibXD
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); OM{WI27
return TRUE; // return TRUE unless you set the focus to a control u !!X6<
} :W@#) 1=
XNgDf3T
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) 7mm1P9Z
{ f{0F|w<gf
if ((nID & 0xFFF0) == IDM_ABOUTBOX) C;(t/zh
{ T)\"Xj
CAboutDlg dlgAbout; ![f ![l
dlgAbout.DoModal(); ^fz+41lE\
} hR5_+cuIp
else 7)%+=@
{ _j_x1.l
CDialog::OnSysCommand(nID, lParam); -[L!3jU
} `-3o+ID\
} _e9:me5d"$
kF>o.uSV
void CCaptureDlg::OnPaint() tTU=+*Io
{ Y?534l)j
if (IsIconic()) fg#x7v4O
{ q64k7<C,
CPaintDC dc(this); // device context for painting fh^lO ^
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); l]<L [Y,E-
// Center icon in client rectangle s}onsC
int cxIcon = GetSystemMetrics(SM_CXICON); N$[$;Fm:
int cyIcon = GetSystemMetrics(SM_CYICON); OIl#DV.
CRect rect; ;L&TxO>#J
GetClientRect(&rect); n4lutnF
int x = (rect.Width() - cxIcon + 1) / 2; ps$7bN C
int y = (rect.Height() - cyIcon + 1) / 2; 34!dYr%
// Draw the icon 2DD:~Tbi
dc.DrawIcon(x, y, m_hIcon); (Z5##dS3
} PQ|69*2G
else )etmE
{ +h_ !0dG
CDialog::OnPaint(); flgRpXt
} Q%aU42?_1
} )bx_;9Y{
(z$r :p
HCURSOR CCaptureDlg::OnQueryDragIcon() 1}ZKc=Pfu
{ 0b91y3R+
return (HCURSOR) m_hIcon; }IEbyb
} zY+Fl~$S
rw)kAe31
void CCaptureDlg::OnCancel() '&;yT[
{ W0jZOP5_.$
if(bTray) n]+W 3[i
DeleteIcon(); qz4^{
CDialog::OnCancel(); S]sk7
} D\/xu-&
;d$qc<2uA
void CCaptureDlg::OnAbout() x ]5@>5
{ X}P$emr7
CAboutDlg dlg; G1 o70
dlg.DoModal(); *=Z26
} z=&z_}M8
e$c?}3E!z
void CCaptureDlg::OnBrowse() 4;`Bj:.
{ Ut]+k+ 4
CString str; 6B$q,"%S@
BROWSEINFO bi; vFrt|JC_{
char name[MAX_PATH]; @+U,Nzd
ZeroMemory(&bi,sizeof(BROWSEINFO)); 9@$,oM=
bi.hwndOwner=GetSafeHwnd(); 52zGJ I*
bi.pszDisplayName=name; BcA31%
bi.lpszTitle="Select folder"; 0%s|Zbo!>
bi.ulFlags=BIF_RETURNONLYFSDIRS; ihT~xt
LPITEMIDLIST idl=SHBrowseForFolder(&bi); Uh.Zi3X6}6
if(idl==NULL) y%]8'q$
return; 6)]f6p&e
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); NkxCs
str.ReleaseBuffer(); l^NC]t
m_Path=str; F="z]C;u
if(str.GetAt(str.GetLength()-1)!='\\') 'k&?DZ!
m_Path+="\\"; f<y&\'3
UpdateData(FALSE); bAxTLIf
} ydWtvFuS
PM$Ee #62R
void CCaptureDlg::SaveBmp() p@&R0>6j
{ -'rj&x{Q)U
CDC dc; Q"a2.9Eo
dc.CreateDC("DISPLAY",NULL,NULL,NULL); Oi:JiD=
CBitmap bm; 9CUimZ
int Width=GetSystemMetrics(SM_CXSCREEN); ST1Ts5I
int Height=GetSystemMetrics(SM_CYSCREEN); c-XLI
bm.CreateCompatibleBitmap(&dc,Width,Height); YTY%#"
CDC tdc; |U[y_Y\a
tdc.CreateCompatibleDC(&dc); r
-f
CBitmap*pOld=tdc.SelectObject(&bm); ioIv=qGdiP
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); =.m6FRsU
tdc.SelectObject(pOld); j.-VJo)
BITMAP btm; <D /a l9
bm.GetBitmap(&btm); ].DY"
DWORD size=btm.bmWidthBytes*btm.bmHeight; t\5c@j p
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); Oo%!>!Lt,
BITMAPINFOHEADER bih; AfWl6a?T8:
bih.biBitCount=btm.bmBitsPixel; 3_qdJ<,
bih.biClrImportant=0; p?rK`$U+J
bih.biClrUsed=0; f==*"?6\
bih.biCompression=0; $fArk36O#
bih.biHeight=btm.bmHeight; `ypL]$cW
bih.biPlanes=1; M|CrBJv+F
bih.biSize=sizeof(BITMAPINFOHEADER); ZL91m`r
bih.biSizeImage=size; N2~$rpU3
bih.biWidth=btm.bmWidth; q@ Kk\m
bih.biXPelsPerMeter=0; y/4ny,s"
bih.biYPelsPerMeter=0; *m_93J
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); 9={N4}<
static int filecount=0; Tx+ p8J|Yr
CString name; 5gNLO\
name.Format("pict%04d.bmp",filecount++); 2,AaP*,
name=m_Path+name; $v&C@l \
BITMAPFILEHEADER bfh; M'u=H
bfh.bfReserved1=bfh.bfReserved2=0; }K8Lm-.=
bfh.bfType=((WORD)('M'<< 8)|'B'); qyv"Wb6+
bfh.bfSize=54+size; )Xno|$b5Eo
bfh.bfOffBits=54; *( *z|2
CFile bf; Kfjryo9
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ PRpE$`WK
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); :ej_D}
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); <|JU(B
bf.WriteHuge(lpData,size); S8*> kM'
bf.Close(); STlPT5e.}
nCount++; u{+!&
2}k
} G7Ny"{Z
GlobalFreePtr(lpData); 0#=W#Jl>
if(nCount==1) %]GV+!3S
m_Number.Format("%d picture captured.",nCount); ;Vo mFp L
else 66dTs,C
m_Number.Format("%d pictures captured.",nCount); $`Rxn*}V4#
UpdateData(FALSE); CgoXZX
} @Z=wE3T@
[0(mFMC`
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) AY@k-4
{ z`@z
if(pMsg -> message == WM_KEYDOWN) EOQaY
{ @SQceQfB
if(pMsg -> wParam == VK_ESCAPE) p|s2G~0<
return TRUE; <)J55++
if(pMsg -> wParam == VK_RETURN) P,`=]Y*
return TRUE; [)k2=67
} 5C65v:Q`N
return CDialog::PreTranslateMessage(pMsg); q06@SD$
} 43F^J%G
lux9o$ %
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) q!@c_o
{ g6`.qyVfz'
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ |} 9GHjG
SaveBmp(); d>~`j8,B
return FALSE; klo^K9!
} ZgK@Fl*k
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ G-sa
L*
CMenu pop; rSbQ}O4V
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); I'P.K| "R
CMenu*pMenu=pop.GetSubMenu(0); ^[*AK_o_DQ
pMenu->SetDefaultItem(ID_EXITICON); ]svw
CPu C
CPoint pt; 8vu2k>
GetCursorPos(&pt); ;wpW2%&
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); 6eOxF8
if(id==ID_EXITICON) 7V |"~%
DeleteIcon(); %va[jJ
else if(id==ID_EXIT) w
zdxw$E
OnCancel(); mxZ4
HD{
return FALSE; a3*.,%d
} "^!j5fZ
LRESULT res= CDialog::WindowProc(message, wParam, lParam); )~G8 L Z
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) &