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:
4fKvB@O@.
%k#+nad 一、实现方法
G0 EXgq8 "0!h-bQN 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:
@4;'>yr(
9Rk(q4.OP #pragma data_seg("shareddata")
z[f]mU HHOOK hHook =NULL; //钩子句柄
CC=I|/mBM UINT nHookCount =0; //挂接的程序数目
r4mh:T4i static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
zdwQpB,+^ static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
[^
}$u[ static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
Yd3lL:M static int KeyCount =0;
aA4RC0' static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
b;VIR,2 #pragma data_seg()
:XY%@n 6vK`J"d{~D 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
=CFjG)L OH>.N"IG DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
Z@euO~e~ 'b.jKkW7 BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
]ePg6 cKey,UCHAR cMask)
N 8[rWJ# {
X}Q4;='C- BOOL bAdded=FALSE;
W_wC"?A% for(int index=0;index<MAX_KEY;index++){
\NNA" if(hCallWnd[index]==0){
eA1g}ipm hCallWnd[index]=hWnd;
M1eh4IVE? HotKey[index]=cKey;
sR/Yv HotKeyMask[index]=cMask;
-Hm"Dx bAdded=TRUE;
.8QhJHwd KeyCount++;
ug]2wftlQ break;
_-vlN }
;:=j{,&dl[ }
'yCVB&`b return bAdded;
FC+-|1?C }
%/3+:}@G //删除热键
>c0leT BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
O + aK#eF {
qVh?%c1.Y BOOL bRemoved=FALSE;
1#N`elm for(int index=0;index<MAX_KEY;index++){
7D<Aa?cv_l if(hCallWnd[index]==hWnd){
"=Z=SJ1D if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
h~Ir=JV hCallWnd[index]=NULL;
<*J"6x HotKey[index]=0;
@rT$}O1?` HotKeyMask[index]=0;
)s>|;K{ bRemoved=TRUE;
`mcb0 KeyCount--;
Ei:m@}g break;
nN&dtjoF }
WblH} }
QyA^9@iVs }
M%:\ ry4: return bRemoved;
y"H5> }
GOxP{d? =EVB?k
, ,$!fyi[;C DLL中的钩子函数如下:
=A5i84y.2u s[7$%|~W LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
h*^JFZb {
}*J04o$oI BOOL bProcessed=FALSE;
M+")*Opq if(HC_ACTION==nCode)
Wg %] {
}'vQUGu8z if((lParam&0xc0000000)==0xc0000000){// 有键松开
cl`kd)"v switch(wParam)
/mJb$5=1 {
r2f%E:-0G case VK_MENU:
hD#Mhy5h MaskBits&=~ALTBIT;
~<u\YIJ break;
c@,1?q1bv case VK_CONTROL:
roZn{+f MaskBits&=~CTRLBIT;
F$i50s break;
WS&a9!3; case VK_SHIFT:
CHS}tCfos> MaskBits&=~SHIFTBIT;
y=9fuGL6 break;
9+(6/< default: //judge the key and send message
KOR*y(* 8 break;
EiD41N }
0<uL0FOT for(int index=0;index<MAX_KEY;index++){
KYkS^v if(hCallWnd[index]==NULL)
0;a1 0b continue;
ug}u>vQ> if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
?ZTA3mV?+ {
|9i[*] SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
vZQraY nJ bProcessed=TRUE;
-^_^ByJe }
lw8t#_P }
_$A? }
y z3=# else if((lParam&0xc000ffff)==1){ //有键按下
^VzhjKSu switch(wParam)
7lYf+&JZ {
fvta< case VK_MENU:
DQObHB8L MaskBits|=ALTBIT;
= <A0; break;
~Q^.7.-T case VK_CONTROL:
hH$9GL{H MaskBits|=CTRLBIT;
~d<&OL break;
tHqa% case VK_SHIFT:
Jl\U~i MaskBits|=SHIFTBIT;
\1?'JdN break;
`+."X1 default: //judge the key and send message
Q-iBK*-w break;
@(6P L^I }
iqoMQ7% for(int index=0;index<MAX_KEY;index++){
tw 3zw`o: if(hCallWnd[index]==NULL)
owa&HW/_ continue;
sOz
{spA if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
H9;IA> {
uQ
]ZMc SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
<QgpePyoN bProcessed=TRUE;
sc-+?i }
!F?j'[s8] }
N:KM8PZ&~ }
Bvj if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
U$@}!X for(int index=0;index<MAX_KEY;index++){
4QC_zyTE if(hCallWnd[index]==NULL)
1"t9x. continue;
8YPX8d8u if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
mxH63$R SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
jU 3ceXV //lParam的意义可看MSDN中WM_KEYDOWN部分
ijcF[bmE }
K{Nj-Rqd }
mDt!b6N/ }
]#S<]v A return CallNextHookEx( hHook, nCode, wParam, lParam );
18j>x3tn }
m1K4_a)^[ Z6So5r%wZ 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
E>|fbaN-% Dg Rn^gL{Q BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
L;Yn q<x BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
B$OV^iwxK 6 %` h2Z 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:
p")"t`k7 UZ-pN_!Z: LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
/Aw@26 {
=yRv*C if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
x'G_z_<V {
S6JWsi4C:, //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
]:n9MFv SaveBmp();
Rw63{b/ return FALSE;
1JOoICjB }
mU[ …… //其它处理及默认处理
C!1)3w| }
%LqT>HXJ WK0IagYw @tRDKPh 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。
3C;;z 6xr%xk2E 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。
:Ez*<;pF' }0/l48G 二、编程步骤
cl{mRt0 I!lR 7% 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";
osO\ib_% iTT7<x
2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
NTGWI$ wSZMHIW 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;
4UPxV"H ;eW)&qzK 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;
AYsHA w }QCn>LXE 5、 添加代码,编译运行程序。
Jh4pY#aF Gy6x.GX 三、程序代码
O"X7 DgbC GUJ?6; ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
+'w6=qI #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
!4z vkJO #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
4kK_S.& #if _MSC_VER > 1000
zTq"kxn' #pragma once
%5n'+- XVj #endif // _MSC_VER > 1000
e?o/H #ifndef __AFXWIN_H__
p&2d&;Qo0 #error include 'stdafx.h' before including this file for PCH
(_N(K`4#W #endif
U9\w)D|+eE #include "resource.h" // main symbols
s|[qq7 class CHookApp : public CWinApp
<&((vrfa {
3/c%4b.Z public:
ts,V+cEA CHookApp();
*k?y+}E_f // Overrides
Hh&qjf // ClassWizard generated virtual function overrides
z63y8 //{{AFX_VIRTUAL(CHookApp)
ra@CouR^c{ public:
B oiS virtual BOOL InitInstance();
yI-EF)A@; virtual int ExitInstance();
oykb8~u}} //}}AFX_VIRTUAL
F0kAQgUv //{{AFX_MSG(CHookApp)
W]>%*n // NOTE - the ClassWizard will add and remove member functions here.
aM_O0Rn== // DO NOT EDIT what you see in these blocks of generated code !
^ME'D //}}AFX_MSG
3".#nN DECLARE_MESSAGE_MAP()
D mky!Cp };
q}z`Z/`/ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
rzvKvGd#N BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
0q]0+o*% BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
G2sj<F=AV BOOL InitHotkey();
z$ {[Z= BOOL UnInit();
wIWO?w2 #endif
I%<pS,p niyxZ<Z //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
0<f.r~ #include "stdafx.h"
]$-<< N{}' #include "hook.h"
N>)Db #include <windowsx.h>
: Hu{MN\ #ifdef _DEBUG
|v1*
[( #define new DEBUG_NEW
4#t-?5" #undef THIS_FILE
v5{2hCdt static char THIS_FILE[] = __FILE__;
Ef@Et(f_mQ #endif
Uaj_,qb( #define MAX_KEY 100
Jm 0.\[J #define CTRLBIT 0x04
<29K!
[ #define ALTBIT 0x02
\#N? #define SHIFTBIT 0x01
-I;\9r+ #pragma data_seg("shareddata")
f)r6F JLU HHOOK hHook =NULL;
rJRg4Rog UINT nHookCount =0;
##alzC static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
v}IhO~`uEq static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
xm=$D6O: static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
& Yx12B\ static int KeyCount =0;
}iUpBn static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
_lm^v%J$ #pragma data_seg()
Zdfh*MHMg HINSTANCE hins;
wAL}c(EHO void VerifyWindow();
#veV {,g BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
&zP>pQr`# //{{AFX_MSG_MAP(CHookApp)
%E [HMq<H // NOTE - the ClassWizard will add and remove mapping macros here.
U: )Gc // DO NOT EDIT what you see in these blocks of generated code!
k7cY^&o //}}AFX_MSG_MAP
W u$yB! END_MESSAGE_MAP()
V"} Jsr xZ>j Q_} CHookApp::CHookApp()
9}4~3_gv;M {
jmP;(j.| // TODO: add construction code here,
',rK\&lL6 // Place all significant initialization in InitInstance
(I35i!F+tY }
47f\ Y zmMF CHookApp theApp;
v?%vB#A^ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
*O_^C {
3Y&4yIx BOOL bProcessed=FALSE;
=4V SbOlZ if(HC_ACTION==nCode)
*D9H3M[o# {
_,d<9 Y) if((lParam&0xc0000000)==0xc0000000){// Key up
+!$`0v switch(wParam)
q1ZZ T"' {
TgHUH>k case VK_MENU:
#5{BxX&\ MaskBits&=~ALTBIT;
L1y71+iqU break;
pmO0/ty case VK_CONTROL:
i` ay9J8N MaskBits&=~CTRLBIT;
sc6NON# break;
%hdjQIH case VK_SHIFT:
2Vw2r@S/ MaskBits&=~SHIFTBIT;
ZNL+w4 break;
g=,}j]tl default: //judge the key and send message
/{W6]6^ break;
TNK1E }
3=*ur( Qy for(int index=0;index<MAX_KEY;index++){
B<a` o&? if(hCallWnd[index]==NULL)
eg1F[~YL/ continue;
BL"7_phM, if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Ed2A\S6tl {
uv^x SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
<$otBC/% bProcessed=TRUE;
Htln <N }
&
Y2xO }
4%I[.dBnM }
SQ/HZ else if((lParam&0xc000ffff)==1){ //Key down
}6=)w@v switch(wParam)
A5%$< {
,H^!G\ case VK_MENU:
D_)/.m MaskBits|=ALTBIT;
18Ju]U break;
;y50t$0
case VK_CONTROL:
evNe6J3 MaskBits|=CTRLBIT;
g-]~+7LL break;
LhM$!o?W case VK_SHIFT:
(mKH,r MaskBits|=SHIFTBIT;
s{j A!T} break;
;-;lM6zP default: //judge the key and send message
Z&P\}mm break;
mVh;=>8K }
BBv+*jj for(int index=0;index<MAX_KEY;index++)
$em'H,*b3 {
)S/=5Uc if(hCallWnd[index]==NULL)
z0 #2?o continue;
,CuWQ'H if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
qPN9Put {
%O<8H7e)V SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
PL3hrI 5 bProcessed=TRUE;
Kpa$1x }
M]/DKo }
a ~W }
=Vazxt@[ if(!bProcessed){
'
2O@ for(int index=0;index<MAX_KEY;index++){
{8`$~c if(hCallWnd[index]==NULL)
UT9u? continue;
aql8Or1[ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
Y:, rN SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
<gfRAeXA }
V*@Y9G }
{IaDZ/XS6 }
'3WtpsKA return CallNextHookEx( hHook, nCode, wParam, lParam );
^w2 HF }
n;Q8Gg2U \iP@|ay9 BOOL InitHotkey()
Ym!e}`A\F {
*f`P7q* if(hHook!=NULL){
\g
h |G nHookCount++;
_L$a[zH return TRUE;
2CneRKQy }
0Oc?:R'$ else
$(]nl%<Q hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
X{OWDy if(hHook!=NULL)
!2Z"Lm nHookCount++;
85;bJfY return (hHook!=NULL);
SgehOu }
UxzF5V5 BOOL UnInit()
rjO{B`sV* {
o[fg:/5)A if(nHookCount>1){
( N};.DB1Y nHookCount--;
kc't return TRUE;
`[U.BVP' }
#8yo9g6 BOOL unhooked = UnhookWindowsHookEx(hHook);
J p+'"a if(unhooked==TRUE){
NRx I?v nHookCount=0;
-)VjjKz]8 hHook=NULL;
Lhe& }
y_=y% return unhooked;
#kq!{5, }
x\8|A wWiYxBeN BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Q}KOb4D {
Jou*e% BOOL bAdded=FALSE;
L\E>5G; for(int index=0;index<MAX_KEY;index++){
&tvp)B?cWk if(hCallWnd[index]==0){
l&'q+F hCallWnd[index]=hWnd;
q!@!eC[b HotKey[index]=cKey;
4gsQ:3 HotKeyMask[index]=cMask;
7bihP@I! bAdded=TRUE;
ZDgT"53 KeyCount++;
^-[
I;P break;
p\lR1 }
UU MB"3e }
6[c|14l return bAdded;
!$oa6*<1 }
%xOxMK@ |%v:>XEO BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
G2)F<Y {
}X^MB BOOL bRemoved=FALSE;
VN!nef
for(int index=0;index<MAX_KEY;index++){
FpA t if(hCallWnd[index]==hWnd){
c {%mi if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
-OlrA{=c_ hCallWnd[index]=NULL;
10*Tk 8 HotKey[index]=0;
XGH:'^o_ HotKeyMask[index]=0;
AJxN9[Z!N bRemoved=TRUE;
}9fch9>Zr KeyCount--;
jYRSV7d break;
nW7: ] }
bS r"k }
j9hfW' }
=2Yt[8'; return bRemoved;
Kq-1 b }
n9}BT^4 v 85q/|9D void VerifyWindow()
YRX^fZ-b {
,v>;/qm for(int i=0;i<MAX_KEY;i++){
%\HPYnIe if(hCallWnd
!=NULL){ 8Sj<,+XFq
if(!IsWindow(hCallWnd)){ wGKxT
ap
hCallWnd=NULL; m{ !$_z8:
HotKey=0; qpYgTn8l7
HotKeyMask=0; vf{$2rC
KeyCount--; : #CWiq("%
} "5~?`5Ff
} XxS#~J?:_
} &zX W
} H/x0'
x"e;T,c
BOOL CHookApp::InitInstance() IONo&~-l
{ `v``}8tm
AFX_MANAGE_STATE(AfxGetStaticModuleState()); 8VMA~7^
hins=AfxGetInstanceHandle(); \]]K{DO
InitHotkey(); B=& [Z2
return CWinApp::InitInstance(); @tm2Y%Y!
} 7cGOJA5&
Qr$
7 U6p
int CHookApp::ExitInstance() 1bCE~,tD
{ !6=;dX
VerifyWindow(); &|GH@^)@
UnInit(); DX>LB$dy?
return CWinApp::ExitInstance();
S
W%>8
} bXF8V
c-XO}\?
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file >j hcSvM6
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) mnK<5KLg1
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ JR.)CzC
#if _MSC_VER > 1000 xOj#%;
#pragma once v.Bwg7R3
#endif // _MSC_VER > 1000 A&t8C8,
`+n#CWZ"Y
class CCaptureDlg : public CDialog Yu_*P-Ja6
{ <1*.:CL"s
// Construction \#:
W
public: *eIX"&ba
BOOL bTray; 63=&??4
BOOL bRegistered; %u66H2
BOOL RegisterHotkey(); +d\o|}c
UCHAR cKey; z.-yL,Rc`-
UCHAR cMask; xn2 nh@;
void DeleteIcon(); )Su>8f[?e
void AddIcon(); |JIlp"[
UINT nCount; yO%^[c?
void SaveBmp(); SED52$zA
CCaptureDlg(CWnd* pParent = NULL); // standard constructor )
~=pt&+
// Dialog Data lOVcXAe}
//{{AFX_DATA(CCaptureDlg) uK" T~
enum { IDD = IDD_CAPTURE_DIALOG }; oqF?9<Vgc,
CComboBox m_Key; % akW43cE
BOOL m_bControl; GuR^L@+ -.
BOOL m_bAlt; U?Jk
BOOL m_bShift; Gkuqe3
CString m_Path; U,i_}O3Q
CString m_Number; lu"0\}7X
//}}AFX_DATA I#(lxlp"Ho
// ClassWizard generated virtual function overrides Hvk~BP'
m
//{{AFX_VIRTUAL(CCaptureDlg) IsI5c
public: yHw @Z
virtual BOOL PreTranslateMessage(MSG* pMsg); m)p|NdTZc8
protected: (dSYb&]
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support ZDmL?mC
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); y7F
|v8bq
//}}AFX_VIRTUAL q1:dcxR[
// Implementation \KhcNr?ja=
protected: yR>P
HICON m_hIcon; n<8WjrK
// Generated message map functions =|E
"
//{{AFX_MSG(CCaptureDlg) &wK:R,~x6
virtual BOOL OnInitDialog(); {UP[iw$~
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); r
1r@TG\
afx_msg void OnPaint(); h^=;\ng1l
afx_msg HCURSOR OnQueryDragIcon(); Ak@!F6~
virtual void OnCancel(); zJw5+
+
afx_msg void OnAbout(); pmB
{b
afx_msg void OnBrowse(); 0(-4"u>?
afx_msg void OnChange(); CHKhJ v3+4
//}}AFX_MSG 8C*@d_=q
DECLARE_MESSAGE_MAP() WBWW7 HK
}; ]?=87w
#endif ,1mL=|na
-z`%x@F<&L
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file qF~9:`
#include "stdafx.h" $f3 IO#N
#include "Capture.h" <)T| HKx
#include "CaptureDlg.h" ?3BcjD0
#include <windowsx.h> o@L0ET
#pragma comment(lib,"hook.lib") ?P0b/g
#ifdef _DEBUG ~_EDJp1J
#define new DEBUG_NEW +I3Vfv
#undef THIS_FILE 5wV J.B~s
static char THIS_FILE[] = __FILE__; gf8o~vKX$G
#endif aNu.4c/5
#define IDM_SHELL WM_USER+1 *`+zf7-f
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); ?.`
ga*
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); DK?aFSf\
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; (o|bst][S
class CAboutDlg : public CDialog BZW03e8|
{ 9k;,WU(K<
public: aU(.LC
CAboutDlg(); o C|oh
// Dialog Data s*Qyd{"z
//{{AFX_DATA(CAboutDlg) y-+W
enum { IDD = IDD_ABOUTBOX }; N0S^{j,i
//}}AFX_DATA Vpg>K #w
// ClassWizard generated virtual function overrides t~ {O)tt
//{{AFX_VIRTUAL(CAboutDlg) ( 5!'42
protected: 2JK
'!Ry)
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support s_y8+BJaV
//}}AFX_VIRTUAL vcu@_N 1Dc
// Implementation +w]#26`d
protected: Cik1~5iF
//{{AFX_MSG(CAboutDlg) pSlc (M>
//}}AFX_MSG W Csf_1
DECLARE_MESSAGE_MAP() E\/[hT
}; #[jS&rr(
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CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) PI*@.kqR-
{ MuD
? KK
//{{AFX_DATA_INIT(CAboutDlg) phH@{mI
//}}AFX_DATA_INIT sA?8i:]O:
} m)L50ot:/
."ZG0Zg
void CAboutDlg::DoDataExchange(CDataExchange* pDX) k'O.1
{ QtnNc!,n
CDialog::DoDataExchange(pDX); *90dkJZ.
//{{AFX_DATA_MAP(CAboutDlg) _3 3 b %
//}}AFX_DATA_MAP EFC+7 L(j
} fhN\AjB6Td
}
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BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) oVK:A;3T|
//{{AFX_MSG_MAP(CAboutDlg) a,oTU\m
C
// No message handlers PoaCnoNS
//}}AFX_MSG_MAP kZG=C6a
END_MESSAGE_MAP() KE,.Evyu=
f>6{tI5X
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) SWzqCF
: CDialog(CCaptureDlg::IDD, pParent)
n}a`|Nbk
{ A4f"v)vM
//{{AFX_DATA_INIT(CCaptureDlg) @Pcgm"H<
m_bControl = FALSE; !+3&%vQ)
m_bAlt = FALSE; ]|!|3lQ
m_bShift = FALSE; }iKjef#J
m_Path = _T("c:\\"); ~B{08%|oK
m_Number = _T("0 picture captured."); 7<WUjK|
nCount=0; A2gFY}
bRegistered=FALSE; j?u1\<m
bTray=FALSE; gf>H-718F
//}}AFX_DATA_INIT 0+iRgnd9?
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 #,z-Pj?O!
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); &V*MNi,4Z
} mQ`atFz:Z
wY ItG"+6
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) T9$~tv,5F
{ R*bx&..<
CDialog::DoDataExchange(pDX); ZX&e,X~V
//{{AFX_DATA_MAP(CCaptureDlg) pZS]i
"
DDX_Control(pDX, IDC_KEY, m_Key); ^|Z'}p|&
DDX_Check(pDX, IDC_CONTROL, m_bControl); a&JY x
DDX_Check(pDX, IDC_ALT, m_bAlt); 3}\ z&|
DDX_Check(pDX, IDC_SHIFT, m_bShift); z` 6$p1U
DDX_Text(pDX, IDC_PATH, m_Path); PpFQoY7M
DDX_Text(pDX, IDC_NUMBER, m_Number); h.R46 :
//}}AFX_DATA_MAP O W.CU=XU
} 2?7ID~\
K@=u F1?
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) pv0|6X?J"
//{{AFX_MSG_MAP(CCaptureDlg) }+m4(lpl
ON_WM_SYSCOMMAND() Ydrh+
ON_WM_PAINT() 2 %fcDEG/
ON_WM_QUERYDRAGICON() ,Gv}N&
ON_BN_CLICKED(ID_ABOUT, OnAbout) NTq_"`JjZ
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) aR3jeB,=x
ON_BN_CLICKED(ID_CHANGE, OnChange) MuWZf2C
//}}AFX_MSG_MAP cz IEkm
END_MESSAGE_MAP() <6-73LsHcP
Z]uc *Ed
BOOL CCaptureDlg::OnInitDialog() {,5.svO
{ :"#
"{P
CDialog::OnInitDialog(); -Wa<}Tz
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); CP\[9#]:
ASSERT(IDM_ABOUTBOX < 0xF000); YZfi-35@g
CMenu* pSysMenu = GetSystemMenu(FALSE); c&bhb[
if (pSysMenu != NULL) <b"^\]l
{ jo&j<3i
CString strAboutMenu; &v0]{)PO
strAboutMenu.LoadString(IDS_ABOUTBOX); .t[u_tBL
if (!strAboutMenu.IsEmpty()) )T9Cv8
{ ~/A2:}Cp=
pSysMenu->AppendMenu(MF_SEPARATOR); wowf1j-
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); >QYx9`x&
} VfzyBjQ
} ?<.a>"!
SetIcon(m_hIcon, TRUE); // Set big icon KJJ:fG8'
SetIcon(m_hIcon, FALSE); // Set small icon {wM<i
m_Key.SetCurSel(0); XE_Lz2H`
RegisterHotkey(); <m \Y$Wv
CMenu* pMenu=GetSystemMenu(FALSE); e+!xy&u@u
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND);
yHE\Q
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); j xI;clr
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); Ju#j%!
return TRUE; // return TRUE unless you set the focus to a control lS Y "
} [ p,]/ ^ N
|e!Y
C iU
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) 8Kl&_-l{b
{ O9N!SQs80
if ((nID & 0xFFF0) == IDM_ABOUTBOX) K?,?.!ev
{ >k\p%{P
CAboutDlg dlgAbout; nW]CA~
dlgAbout.DoModal(); 8Ys)q x>7'
} }.D18bE(
else V?yQm4
{ MPnMLUB$\
CDialog::OnSysCommand(nID, lParam); #@-dT,t
} $W}:,]hoj
} JcYY*p
#QsJr_=
void CCaptureDlg::OnPaint() Hc8^w6S1@
{ 82 |^o
if (IsIconic()) "Ia.$,k9
{ J#H,QYnf(L
CPaintDC dc(this); // device context for painting G)YmaHeI;[
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); - s'W^(
// Center icon in client rectangle Q'jGNWep
int cxIcon = GetSystemMetrics(SM_CXICON); f9UDH8X
int cyIcon = GetSystemMetrics(SM_CYICON); Efe(tH2q
CRect rect; +cXi|Zf
GetClientRect(&rect); 8h)7K/!\
int x = (rect.Width() - cxIcon + 1) / 2; mI<s f?.
int y = (rect.Height() - cyIcon + 1) / 2; "
]k}V2l
// Draw the icon ';\norx;
dc.DrawIcon(x, y, m_hIcon); <WWZb\"{
} WYRC_U7
else eK(k;$4\^Y
{ c]1AM)xo
CDialog::OnPaint(); tc.|mIvw
} o_=4Ex
"
} @Oz3A<M
P=}dR&gk'
HCURSOR CCaptureDlg::OnQueryDragIcon() sa<\nH$_X
{ ;~r- P$kCY
return (HCURSOR) m_hIcon; 4sSw7`
} _l]
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g`
D]fgBW-
void CCaptureDlg::OnCancel() .nEMd/pX
{ 8(-
29
if(bTray) 4 5wqX h
DeleteIcon(); _~tF2`,Y_p
CDialog::OnCancel(); dpchZ{
} fup?Mg-
\kKd:C{
void CCaptureDlg::OnAbout() wbr$w>n
{ -]}#Z:&
CAboutDlg dlg; \;_tXb}F
dlg.DoModal(); Ki:t!vAO
} !|V_DsP
ODKh/u_
void CCaptureDlg::OnBrowse() +8"8s
{ tU Je-3,
CString str; Iw?f1]
BROWSEINFO bi; n|T$3j)
char name[MAX_PATH]; yYe>a^r4R
ZeroMemory(&bi,sizeof(BROWSEINFO)); y+$vHnS/jC
bi.hwndOwner=GetSafeHwnd(); wPYeKOh'
bi.pszDisplayName=name; "fv+}'
bi.lpszTitle="Select folder"; *C|*{!
bi.ulFlags=BIF_RETURNONLYFSDIRS; T>*G1 -J#
LPITEMIDLIST idl=SHBrowseForFolder(&bi); b^<7a&
if(idl==NULL) /EQ^-4yr
return; K5bR7f:
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); r$M<vo6C
str.ReleaseBuffer(); {C?$osrr
m_Path=str; s!D?%
if(str.GetAt(str.GetLength()-1)!='\\') ZvXw#0)v
m_Path+="\\"; 8kd):gZKZ
UpdateData(FALSE); k[ pk R{e
} AK'3N1l`
!jEV75
void CCaptureDlg::SaveBmp() 4/\Ynb.L
{ :qR8 e J
CDC dc; >e.vUUQ{
dc.CreateDC("DISPLAY",NULL,NULL,NULL); %< ;u
JP K
CBitmap bm; o,_F;ZhE
int Width=GetSystemMetrics(SM_CXSCREEN); <jFov`^
int Height=GetSystemMetrics(SM_CYSCREEN); >D##94PZ
bm.CreateCompatibleBitmap(&dc,Width,Height); MVQ6I/EA4
CDC tdc; 3AP=
tdc.CreateCompatibleDC(&dc); Yc)Dx3
CBitmap*pOld=tdc.SelectObject(&bm); &{wRB l #
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); mo4F\$2N
tdc.SelectObject(pOld); RxPD44jVA
BITMAP btm; Rm,>6bQx
bm.GetBitmap(&btm); g hkV^ [
DWORD size=btm.bmWidthBytes*btm.bmHeight; h?ijZHG $
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); xrNe:Aj
BITMAPINFOHEADER bih; &F;bg
bih.biBitCount=btm.bmBitsPixel; n^55G>"0|
bih.biClrImportant=0;
{fEb>
bih.biClrUsed=0; j~+(#|
bih.biCompression=0; [*C~BM
bih.biHeight=btm.bmHeight; (B@\Dw8^
bih.biPlanes=1; )VG>6x
bih.biSize=sizeof(BITMAPINFOHEADER); _~>WAm<
bih.biSizeImage=size; }a UQ#x
bih.biWidth=btm.bmWidth; y'oH>l+n
bih.biXPelsPerMeter=0; \ ux{J
bih.biYPelsPerMeter=0; |Q%nnN
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); #{k+^7aQ
static int filecount=0; cj2^wmkB
CString name; 4}0YLwgJ
name.Format("pict%04d.bmp",filecount++); !xg10N}I
name=m_Path+name; wLfH/J
BITMAPFILEHEADER bfh; *[jq&
bfh.bfReserved1=bfh.bfReserved2=0; nD
4C $
bfh.bfType=((WORD)('M'<< 8)|'B'); |XQ\c.A
bfh.bfSize=54+size; By*YBZ
bfh.bfOffBits=54; e !w{ap8u
CFile bf; tk 5p@l
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ .k
up[d(
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); Y)GU{
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); .
Wd0}?}
bf.WriteHuge(lpData,size);
?c_:S]^
bf.Close(); oj?y_0}:^
nCount++; "9 vL+Hh
} l\m7~
GlobalFreePtr(lpData); YiL^KK
if(nCount==1) Kj?hcGl[
m_Number.Format("%d picture captured.",nCount); D~Q-:G$x
else j@UE#I|h
m_Number.Format("%d pictures captured.",nCount); Hy'EbQ
UpdateData(FALSE); r M}o)
} |w>b0aY
CNWA!1n^Hy
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) i}|jHlv
{ @o<B>$tbu4
if(pMsg -> message == WM_KEYDOWN) VGCd)&s
{ &[PA?#I`
if(pMsg -> wParam == VK_ESCAPE) E3CwA8)k
return TRUE; KNF{NFk
if(pMsg -> wParam == VK_RETURN) )C0Iy.N-
return TRUE; uXA}" f2
} S]e;p\8$Z
return CDialog::PreTranslateMessage(pMsg); 04Uyr;y
} 7#N= GN
64'sJc.
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 7^#O{QYol
{ (\
|Go-2G
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ rof9Rxxe-
SaveBmp(); ME5M;bz(
return FALSE; PyQ\O*
} G ,`]2'(@
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ &g8