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:
j<[<qU:
No?pv" 一、实现方法
R!O'DM+ d;z`xy(C 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:
8m iIlB +q1@,LxN #pragma data_seg("shareddata")
J<2N~$ HHOOK hHook =NULL; //钩子句柄
]du pU"VV UINT nHookCount =0; //挂接的程序数目
"-9YvB# static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
.._wTOSq static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
B*{CcQ<5 static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
KQk;:1hW static int KeyCount =0;
6gv.n static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
U;_;_ #pragma data_seg()
<B)lV'!Bd QS[%`-dR2 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。
Gh j[nsoC~ 5%9&
7 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:
^;'3(m= n`6vM4rM) BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
v^vEaB cKey,UCHAR cMask)
)gE:@3 {
.gB#g{5+J BOOL bAdded=FALSE;
bAgKOfT for(int index=0;index<MAX_KEY;index++){
q
o'1Pknz if(hCallWnd[index]==0){
GYBM]mW^ W hCallWnd[index]=hWnd;
fQ<V_loP.@ HotKey[index]=cKey;
[bAv|; HotKeyMask[index]=cMask;
m2_B(- bAdded=TRUE;
W6Hiqu+ KeyCount++;
(t <Um
Vd break;
8u>E(Vmpu }
PpbW+}aCF }
SkY|.w. return bAdded;
%FwLFo^v }
PffRV7qU0 //删除热键
BQm H9g|2 BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
T =:^k+ {
E|No$QO) BOOL bRemoved=FALSE;
I)6)~[:' for(int index=0;index<MAX_KEY;index++){
RAe:$Iv$!v if(hCallWnd[index]==hWnd){
PS>k67sI if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
ydpsPU?wj5 hCallWnd[index]=NULL;
Ji=E 1R HotKey[index]=0;
zITXEorF!J HotKeyMask[index]=0;
qh=lF_%uj bRemoved=TRUE;
mFT[[Z# KeyCount--;
IuPwFf) break;
l?ofr*U&-x }
*p
VKMmU }
I`
/'\cU9 }
=!7yX;| return bRemoved;
{1FYHM^ }
Zf|f $1- 7[Y<5T] K2&pTA~OR DLL中的钩子函数如下:
C6GYhG] SwQb" LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
+&|WC2# {
zF{5!b BOOL bProcessed=FALSE;
$"sf%{~ if(HC_ACTION==nCode)
<jV_J+# {
55Jk "V#8 if((lParam&0xc0000000)==0xc0000000){// 有键松开
Q|:\ switch(wParam)
WFtxEIrl3j {
$AoN,B> case VK_MENU:
=\tg$ MaskBits&=~ALTBIT;
pmfyvkLS break;
C0'Tua' case VK_CONTROL:
m@OgT<E]_ MaskBits&=~CTRLBIT;
c" yf>0 break;
.x}ImI case VK_SHIFT:
V]IS(U( MaskBits&=~SHIFTBIT;
F`'e/ break;
B6,"S5@ default: //judge the key and send message
I9_tD@s"( break;
dw'%1g.113 }
>hHn{3y for(int index=0;index<MAX_KEY;index++){
0?k/vV4 if(hCallWnd[index]==NULL)
JrO2"S continue;
ky,+xq if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
&FGz53fd4 {
\07
s'W U SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
8eL[,uw bProcessed=TRUE;
kpEES{f }
>pr{)bp G }
Si!W@Jm }
w+ bMDp else if((lParam&0xc000ffff)==1){ //有键按下
\3x,)~m switch(wParam)
QO0T<V {
6Vi #O^> case VK_MENU:
iugTXZ( MaskBits|=ALTBIT;
'R= r9_% break;
-]HO8}-Rjs case VK_CONTROL:
K" Y,K MaskBits|=CTRLBIT;
IeE+h-3p break;
8xlj:5;(w case VK_SHIFT:
0/;T\9 MaskBits|=SHIFTBIT;
.hnGHX break;
8\/E/o3 default: //judge the key and send message
(Zx;GS break;
R|Y)ow51 }
yjc:+Y{5' for(int index=0;index<MAX_KEY;index++){
!\^c9Pg|v if(hCallWnd[index]==NULL)
e%#9|/uP continue;
Bm1yBKjO if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
3Cq17A 9 {
J %URg=r SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
&!a[rvtZ+ bProcessed=TRUE;
Jt@7y"< }
Rax}r }
ewD61Y8- }
"C%;9_ig$ if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
o^2.&e+dQ for(int index=0;index<MAX_KEY;index++){
n~k;9` if(hCallWnd[index]==NULL)
(yn!~El3 continue;
'Q?nU^:F# if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
IKH#[jW'IB SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
|v:8^C7 //lParam的意义可看MSDN中WM_KEYDOWN部分
d'J))-*#UO }
qVx0VR1: }
*[k7KG2_U }
,@8>=rT return CallNextHookEx( hHook, nCode, wParam, lParam );
5,k&^CK} }
U5%EQc-"P lhKd<Y" 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:
PKty'}KF 3@_je)s BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
VWaI!bK BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
UII R$,XB Kmk< 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
XQ.JzzY$ (F
+if LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
%
=br-c {
&CG3_s<2 if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
\@3i=! {
+kmPQdO;*/ //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
+UB+. 5P SaveBmp();
+(QGlRd return FALSE;
x=gZ7$?A }
A7 E*w …… //其它处理及默认处理
/!ux P~2U }
!zVuO*+ eZk
[6H 7?dB&m6W 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
n@Y`g{{e~ JY~s-jxa 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
/)e&4.6 \M'b% 二、编程步骤
J+kxb"#d \ 2*<Pq 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
VrrCW/o 1)X%n)2pr 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
3_+-t5 `[2nxP>w` 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
H'P1EZtq R4%!W~K 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
&1{RuV&t :I1)=8lO 5、 添加代码,编译运行程序。
#swzZyM$ 3#j%F 三、程序代码
.TSj8, n'U*8ID ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
HJ:s)As #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
HBXp#$dPc #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
_A;jtS)SY #if _MSC_VER > 1000
l%oie1g l #pragma once
r*OSEzGUz #endif // _MSC_VER > 1000
y9?B vPp+ #ifndef __AFXWIN_H__
u yzc"di #error include 'stdafx.h' before including this file for PCH
{ %vX/Ek #endif
;lB%N
t<, #include "resource.h" // main symbols
&Ru|L.G` class CHookApp : public CWinApp
4t|ril``] {
P*BA public:
e%afK@c CHookApp();
x;?4A J{ // Overrides
D\jRF-z // ClassWizard generated virtual function overrides
=hH>]$J[ //{{AFX_VIRTUAL(CHookApp)
kS%FV;9>( public:
I QS| virtual BOOL InitInstance();
lc,{0$
1< virtual int ExitInstance();
Hl8-1M$& //}}AFX_VIRTUAL
!vHnMY~AG //{{AFX_MSG(CHookApp)
;oH17 // NOTE - the ClassWizard will add and remove member functions here.
}3!83~Qbx // DO NOT EDIT what you see in these blocks of generated code !
s*>s;S?{| //}}AFX_MSG
*!ZU"q}i DECLARE_MESSAGE_MAP()
pLE|#58I };
2G=Bav\n+ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
DGz'Dn BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
]8NNxaE3 ( BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
Xw(e@: BOOL InitHotkey();
;e_dk4_ BOOL UnInit();
Ou"QUn| #endif
vQ#$.*Cvn G|Yw
a= //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
tx;MH5s/V #include "stdafx.h"
mnzamp #include "hook.h"
(`5No:?v< #include <windowsx.h>
VLQDktj& #ifdef _DEBUG
y)X;g:w #define new DEBUG_NEW
Jx9S@L` #undef THIS_FILE
M}k )Ep9 static char THIS_FILE[] = __FILE__;
mL?9AxO #endif
>0k7#q}O #define MAX_KEY 100
7hZCh,O #define CTRLBIT 0x04
'ejuzE9 #define ALTBIT 0x02
m\(4y Gj #define SHIFTBIT 0x01
R
rs?I,NV #pragma data_seg("shareddata")
cKEf- &~ HHOOK hHook =NULL;
D}XyT/8G3 UINT nHookCount =0;
b8P/9D7K? static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
mk2T static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
#I|Vyufw static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
^o+2:G5z} static int KeyCount =0;
bHH{bv~Z static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
*6sB$E_y #pragma data_seg()
|\TOSaZ HINSTANCE hins;
5"u-oE& void VerifyWindow();
^0_ *AwIcN BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
bg[k8*.:F //{{AFX_MSG_MAP(CHookApp)
MC D]n // NOTE - the ClassWizard will add and remove mapping macros here.
=;-/( C // DO NOT EDIT what you see in these blocks of generated code!
`re]Q0IO //}}AFX_MSG_MAP
d8`^;T
;}d END_MESSAGE_MAP()
[cwc}f^ Q#wASd. CHookApp::CHookApp()
_iLXs {
uc<XdFcu // TODO: add construction code here,
VT96ph // Place all significant initialization in InitInstance
Q.7Rv
XNw8 }
Tw/kD)u{ gdT3,8`#[ CHookApp theApp;
Y5&Jgn.l LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
O&.^67\| {
oUIa/}}w5 BOOL bProcessed=FALSE;
<"{Lv)4 if(HC_ACTION==nCode)
aR6?+`6< {
O@{ JB if((lParam&0xc0000000)==0xc0000000){// Key up
BQ{Gp 2N switch(wParam)
S}gUz9ks {
jz
QmYcd case VK_MENU:
7}(wEC MaskBits&=~ALTBIT;
lEIX,amwa break;
](a*R case VK_CONTROL:
#Z;ziM: MaskBits&=~CTRLBIT;
A8&yB;T$y break;
/ tM<ois* case VK_SHIFT:
K++pH~o MaskBits&=~SHIFTBIT;
4Z)`kS}=] break;
$6}siU7s4 default: //judge the key and send message
EGO;g^, break;
}`{>]2 }
UeV2`zIg` for(int index=0;index<MAX_KEY;index++){
hSSF] if(hCallWnd[index]==NULL)
0kS[`a(}J continue;
WY_}D!O if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
XeX0\L')R {
d|k6#f-E SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
BoYWx^VHx^ bProcessed=TRUE;
Q%KH^< }
ny%-u&1k }
7m_Jb5 }
H$au02dpU else if((lParam&0xc000ffff)==1){ //Key down
ks<gSCB switch(wParam)
Idop!b5! {
kD
dY
i7g> case VK_MENU:
1,=U^W.G MaskBits|=ALTBIT;
7D\#1h break;
Rcs7 'q5 case VK_CONTROL:
Izm8
qt=m MaskBits|=CTRLBIT;
y?GRxoCD"e break;
{LYA?w^GT case VK_SHIFT:
Ay;=1g)8+f MaskBits|=SHIFTBIT;
p)vyZY[ break;
dFD0l?0N default: //judge the key and send message
!^cQPX2< break;
28JWQ%- }
&1YAPxX for(int index=0;index<MAX_KEY;index++)
SoeL_#+^W {
lTW5>% if(hCallWnd[index]==NULL)
Q<B=m6~ continue;
jCqs^`- if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
6DqV1' {
&MsnQP SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
XFeHkU`C bProcessed=TRUE;
&:`T!n }
34_:.QK- }
*L7 ZyERs }
.>DqdtP[ if(!bProcessed){
+C1/02ZJ for(int index=0;index<MAX_KEY;index++){
eyBLgJt8P if(hCallWnd[index]==NULL)
+Wh0Of continue;
vS%o>"P if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
(.4mX
t SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
4]0|fi3}> }
5jD2%"YUV }
'
Z:FGSwT }
fQRGz\r*k return CallNextHookEx( hHook, nCode, wParam, lParam );
XSC._)ztEE }
qFp }+s (|L0s) BOOL InitHotkey()
tNg}:a|J {
]u
4 if(hHook!=NULL){
[R*UPa nHookCount++;
GqBZWmAB return TRUE;
{rQ6IV3= }
#]<j.Fc` else
/{
Lo0 hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
d]6.$"\"p if(hHook!=NULL)
&l2oyQEF) nHookCount++;
:pj#t$:! return (hHook!=NULL);
\E1[ / }
7y.$'< BOOL UnInit()
NBZFIFO< {
-:b0fKn if(nHookCount>1){
fa9c!xDt nHookCount--;
3Xyu`zS& return TRUE;
ku3Vr\s }
<o,]f E[ BOOL unhooked = UnhookWindowsHookEx(hHook);
*>,8+S33r{ if(unhooked==TRUE){
.)~IoIW= nHookCount=0;
d|CSWcU hHook=NULL;
H4p N+ }
ts/rV#s~ return unhooked;
FB-?{78~ }
V`qHNM/t iV;X``S BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
8gWifx
#N {
CIAHsbn.A BOOL bAdded=FALSE;
)!J0e-T-8O for(int index=0;index<MAX_KEY;index++){
$K>'aI;| if(hCallWnd[index]==0){
&Iv3_T<AF hCallWnd[index]=hWnd;
Uu
~BErEC HotKey[index]=cKey;
SE/GT:} HotKeyMask[index]=cMask;
*-"DZ bAdded=TRUE;
Wm\HZ9PN KeyCount++;
0)n#$d> break;
Tl"GOpH\] }
m [7@l }
,pL%,>R5 return bAdded;
>5-z"f }
G6wBZ?)k TOmq2*,/ BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Bc3(xI'>J {
|2w,Np- BOOL bRemoved=FALSE;
,?g}->ZB for(int index=0;index<MAX_KEY;index++){
5/4N Y if(hCallWnd[index]==hWnd){
N9 @@n:JT if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
uLXMEx<^ hCallWnd[index]=NULL;
^x(BZolkm HotKey[index]=0;
E-jL"H* HotKeyMask[index]=0;
V("@z<b| bRemoved=TRUE;
gz8>uGx&V! KeyCount--;
QII-9RxX" break;
O2./?Ye }
A3D"b9<D }
<nDuN*| }
@H[)U/. return bRemoved;
uj#bK
7 }
5%M 'ewu @9S3u#vP void VerifyWindow()
sbn|D\p {
VBV y3fnj for(int i=0;i<MAX_KEY;i++){
~5LlIpf36| if(hCallWnd
!=NULL){ 46`(u"RP
if(!IsWindow(hCallWnd)){ ;LEO+,6
hCallWnd=NULL; { ]Tb
HotKey=0; nP`#z&C
HotKeyMask=0; @vzv9c[
KeyCount--; 9XtR8MH
} I-oY@l`
} i i&kfy
} NvCq5B$C
} O6JH )Ka"S
j"g[qF/*
BOOL CHookApp::InitInstance() NKyaR_q`
{ O#Y;s;)i"
AFX_MANAGE_STATE(AfxGetStaticModuleState()); +b@KS"3h
hins=AfxGetInstanceHandle(); !Ab4'4f
InitHotkey(); esE5#Yq4.k
return CWinApp::InitInstance(); 2}:{}pw
} z+IHt(
O*%
1
int CHookApp::ExitInstance() 7;0$UYDU*
{ ,m ^q>
VerifyWindow(); .3Ex=aQcX
UnInit(); "Z xM,kI
return CWinApp::ExitInstance(); *^ag wQ`
} YI[y/~!
F?"#1je
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file |VC|@ Q
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) fePt[U)2
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ U Px7u%Do
#if _MSC_VER > 1000 =e\E{K'f@
#pragma once &oi*]:<FNe
#endif // _MSC_VER > 1000 !<`}mE!:
#a7 Wx}
class CCaptureDlg : public CDialog \X&LrneR"t
{ 7-Bttv{
// Construction <zUU`
public: NlLgXn!
BOOL bTray; & !0 [T
BOOL bRegistered; .FV
wZ:d
BOOL RegisterHotkey(); t<sy7e='
UCHAR cKey; N=4`jy =
UCHAR cMask; !l2=J/LJj
void DeleteIcon(); }?PvNK]",
void AddIcon(); C|"BMam
UINT nCount; B_Qi
void SaveBmp(); Tz/=\_}
CCaptureDlg(CWnd* pParent = NULL); // standard constructor O [Q;[@
// Dialog Data dt -EY
//{{AFX_DATA(CCaptureDlg) ^uZ!e+
enum { IDD = IDD_CAPTURE_DIALOG }; v(Vm:oK,
CComboBox m_Key; .4I"[$?Q
BOOL m_bControl; g$=y#<2?
BOOL m_bAlt; *c"tW8uR
BOOL m_bShift; 2oL~N*^C
CString m_Path; snU
$Na3
CString m_Number; &
QO9 /!
//}}AFX_DATA ,UOAGu<_gb
// ClassWizard generated virtual function overrides sT&O %(
//{{AFX_VIRTUAL(CCaptureDlg) 8M9LY9C
public: x[%z \
virtual BOOL PreTranslateMessage(MSG* pMsg); a-nf5w>&q
protected: 24)Sf
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support |n9q4*dN
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); /m>%=_nz
//}}AFX_VIRTUAL PWErlA:58
// Implementation _4!SO5T
protected: \TchRSe
HICON m_hIcon; }vzZWe
// Generated message map functions v-^7oai
//{{AFX_MSG(CCaptureDlg) $inpiO|s
virtual BOOL OnInitDialog(); D)0pm?*5A
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); %M?A>7b
afx_msg void OnPaint(); 8|9JJ<G7
afx_msg HCURSOR OnQueryDragIcon(); c{X>i>l>
virtual void OnCancel(); Ojea~Y]Sr
afx_msg void OnAbout(); |[%CFm}+?
afx_msg void OnBrowse(); e G8Zn<:s
afx_msg void OnChange();
RDFOUqS
//}}AFX_MSG X9:4oMux7
DECLARE_MESSAGE_MAP() g7>p,
}; pxj}%LH
#endif BbCt_z'
6x6xv:\
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file c UJUZ@ol
#include "stdafx.h" Z:TW{:lrI
#include "Capture.h" X?3?R\/
#include "CaptureDlg.h" IiX`l6L~W
#include <windowsx.h> A4C4xts]N
#pragma comment(lib,"hook.lib") FrPpRe %!
#ifdef _DEBUG l~cT]Ep
#define new DEBUG_NEW %Fb4
#undef THIS_FILE kaKV{;UM
static char THIS_FILE[] = __FILE__; jGp|:!'w
#endif .JkcCEe{G
#define IDM_SHELL WM_USER+1 D7'P^*4_B
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); *ud"?{)Z
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); lQt&K1m
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; 6Vq]AQx
class CAboutDlg : public CDialog C`)n\?:Sth
{ !21#NCw
public: {9 PeBc
CAboutDlg(); 0O_acO4
// Dialog Data \I3={ii0
//{{AFX_DATA(CAboutDlg) ]7#@lL;'0
enum { IDD = IDD_ABOUTBOX }; \QpH~&QIS
//}}AFX_DATA
.1O
// ClassWizard generated virtual function overrides |G!P G6%1
//{{AFX_VIRTUAL(CAboutDlg) ^+v6?%m
protected: Stq
[[S5P
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support a.oZ}R7'Y
//}}AFX_VIRTUAL t&GjW6]W
// Implementation zAr@vBfC%
protected: vmV<PK-
//{{AFX_MSG(CAboutDlg) Glt%%TJb
//}}AFX_MSG $d@_R^]X
DECLARE_MESSAGE_MAP() #<^ngoOj
}; Ax'jNol
8ec6J*b
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) ."8bW^:
{ Wix/Az
//{{AFX_DATA_INIT(CAboutDlg) &n|S:"B
//}}AFX_DATA_INIT Y<A593
} h3 Bs
ISp'4H7R+N
void CAboutDlg::DoDataExchange(CDataExchange* pDX) G:n,u$2a<
{ /^BaQeH?R
CDialog::DoDataExchange(pDX); 9PpPAF
//{{AFX_DATA_MAP(CAboutDlg) c(]NpH
in
//}}AFX_DATA_MAP !W^b:qjJ
} !!WSGZUR
^p'iX4M
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) <Z8I#IPl
//{{AFX_MSG_MAP(CAboutDlg) ;OE= ;\
// No message handlers Q%x |
//}}AFX_MSG_MAP 3A~53W$M
END_MESSAGE_MAP() Cfz020u`g
`0]kRA8=
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) ?<Tt1fpG
: CDialog(CCaptureDlg::IDD, pParent) Do&em8i
z
{ R0 g-
//{{AFX_DATA_INIT(CCaptureDlg) ~Sr`Tlp
m_bControl = FALSE; ka3(sctZ5
m_bAlt = FALSE; 3L;GfYr0
m_bShift = FALSE; s'4S,
m_Path = _T("c:\\"); 4bT21J37
m_Number = _T("0 picture captured."); %B;e7
UJ
nCount=0; [c{/0*
bRegistered=FALSE; } s0?RH
bTray=FALSE;
iMr Np
//}}AFX_DATA_INIT R4?OFhN9
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 "zT#*>U
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); ~6:<OdQ
} q.
%[!O
sQBl9E'!be
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) yAge2m]<B
{ ~|LlT^C
CDialog::DoDataExchange(pDX); |_=o0lf
//{{AFX_DATA_MAP(CCaptureDlg) q- U/JC
DDX_Control(pDX, IDC_KEY, m_Key); D"5u N0Z
DDX_Check(pDX, IDC_CONTROL, m_bControl); ?1r>t"e5
DDX_Check(pDX, IDC_ALT, m_bAlt); (sngq{*%%z
DDX_Check(pDX, IDC_SHIFT, m_bShift); HJ&|&tT
DDX_Text(pDX, IDC_PATH, m_Path); UR/lM,N;
DDX_Text(pDX, IDC_NUMBER, m_Number); OOa}+^-j
//}}AFX_DATA_MAP !9$xfg}
} [Rqv49n*V
3c#CEuu
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) kJ;fA|(I
//{{AFX_MSG_MAP(CCaptureDlg) `M
"O #
ON_WM_SYSCOMMAND() ? qn0].
ON_WM_PAINT() hkSK;
ON_WM_QUERYDRAGICON() kW'xuZ&
ON_BN_CLICKED(ID_ABOUT, OnAbout) -^y$RJC
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) U%swqle4
ON_BN_CLICKED(ID_CHANGE, OnChange) +m> %(?=A
//}}AFX_MSG_MAP t+R8{9L-
END_MESSAGE_MAP() -Qs4s
RJ#xq#l
BOOL CCaptureDlg::OnInitDialog()
\= M*x
{ +) pO82
CDialog::OnInitDialog(); )czuJ5
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); s^
t1T&
ASSERT(IDM_ABOUTBOX < 0xF000); ews4qP
CMenu* pSysMenu = GetSystemMenu(FALSE); 1gq(s2izy
if (pSysMenu != NULL) ^|z
{ 4FmT.P
CString strAboutMenu; p8%/T>hK
strAboutMenu.LoadString(IDS_ABOUTBOX); ZfzUvN&!
if (!strAboutMenu.IsEmpty()) R:=
%gl!
{ g3p*OYf
pSysMenu->AppendMenu(MF_SEPARATOR); }CR@XD}[
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); N2!HkUy2
} XO*|P\#^
} qusX]Tstz
SetIcon(m_hIcon, TRUE); // Set big icon 3Mvm'T:[
SetIcon(m_hIcon, FALSE); // Set small icon E~=`Ac,G2
m_Key.SetCurSel(0); hFDY2Cp]D
RegisterHotkey(); sqAZjfy@
CMenu* pMenu=GetSystemMenu(FALSE); '.n0[2>
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); Gw"H#9J}
T
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); ,ux?wa+
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); !nQ!J+ g
return TRUE; // return TRUE unless you set the focus to a control 4M)
s
} 9-<EeV_/
}Q 7~tu
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) Et\z^y
{ e 1W9Z $m
if ((nID & 0xFFF0) == IDM_ABOUTBOX) F_m[EB
{ ])dq4\Bw
CAboutDlg dlgAbout; 93zoJiLRf
dlgAbout.DoModal(); =WaZy>n}7
} hpftVEB
else N:#"4e
{ u$7od$&S
CDialog::OnSysCommand(nID, lParam); pi>,>-Z
} t)Iu\bP
} V~V_+
p'lL2n$E
void CCaptureDlg::OnPaint() !,rp|
{ , _K /e
if (IsIconic()) d"
T">Og)
{ aS^
4dEJ
CPaintDC dc(this); // device context for painting "3kIQsD|j
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); U5uO|\+)
// Center icon in client rectangle Mlr\#BO"9
int cxIcon = GetSystemMetrics(SM_CXICON); B~/:["zTh&
int cyIcon = GetSystemMetrics(SM_CYICON); @M[t|
CRect rect; (Rqn)<<2
GetClientRect(&rect); 7*bUy)UZ
int x = (rect.Width() - cxIcon + 1) / 2; dgLE/r?
int y = (rect.Height() - cyIcon + 1) / 2; oDY
$F%
// Draw the icon d ] J5c
dc.DrawIcon(x, y, m_hIcon); y{>d&M|
} 5iE-$,7#L
else &|;XLRHP}
{ VdrqbZ
CDialog::OnPaint(); OK{_WTCe>
} \,YF['Qq
} ),#%jc2_^
<ID/\Qx`q
HCURSOR CCaptureDlg::OnQueryDragIcon() MfJ;":]O!
{ &5]&6TD6
return (HCURSOR) m_hIcon; 0n5{Wr$
} jB+K)NXHL
!Cq2<[K#
void CCaptureDlg::OnCancel() !f
7CN<
{ -;/;d z;
if(bTray) LvlVZjT
DeleteIcon(); |@{4zoP_N
CDialog::OnCancel(); (vX+
Yw
} R`? '|G]P
0 K
T.@P
void CCaptureDlg::OnAbout() q; &\77i$
{ FerQA9K)x
CAboutDlg dlg; ]L/h,bVI1
dlg.DoModal(); tI2V)i!
} HAq
E$B7E@(U
void CCaptureDlg::OnBrowse() [ML%u$-
{ T%{qwZc+mJ
CString str; #bxU I{*J
BROWSEINFO bi; *VJT]^_
char name[MAX_PATH]; jH+ddBVA
ZeroMemory(&bi,sizeof(BROWSEINFO)); Up:<NHJT
bi.hwndOwner=GetSafeHwnd(); zGtWyXP
bi.pszDisplayName=name; pLB~{5u>;-
bi.lpszTitle="Select folder"; 8y9oj9
;E]
bi.ulFlags=BIF_RETURNONLYFSDIRS; 4x.1J
LPITEMIDLIST idl=SHBrowseForFolder(&bi); PQ6.1}
if(idl==NULL) W4
v/,g>
return; p.(8e kh
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); H/qv%!/o
str.ReleaseBuffer(); Ne{2fV>8Ay
m_Path=str; C%hMh/Li;
if(str.GetAt(str.GetLength()-1)!='\\') HYd&.*41rE
m_Path+="\\"; oMM+af
UpdateData(FALSE); -4
~(*
} B=E<</i
`zD]*i(
void CCaptureDlg::SaveBmp() M4MO)MYJ
{ 8ZmU(m
CDC dc; VB*`"4e@b<
dc.CreateDC("DISPLAY",NULL,NULL,NULL); (XF"ckma
CBitmap bm; >ZAb9=/M)F
int Width=GetSystemMetrics(SM_CXSCREEN); oD0WHp
int Height=GetSystemMetrics(SM_CYSCREEN); )Sz2D[@n
bm.CreateCompatibleBitmap(&dc,Width,Height); }/dGC;p"
CDC tdc; r]GG9si
tdc.CreateCompatibleDC(&dc); ]r]= Q"/5
CBitmap*pOld=tdc.SelectObject(&bm); 2vb {PQ
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); t0$}
tdc.SelectObject(pOld); 5u\#@% \6
BITMAP btm; ,;RAPT4
bm.GetBitmap(&btm); :Q~Rb<']{x
DWORD size=btm.bmWidthBytes*btm.bmHeight; }vppn=[Y
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); ii< /!B(
BITMAPINFOHEADER bih; PVK. %y9
bih.biBitCount=btm.bmBitsPixel; wH?r522`c
bih.biClrImportant=0; 8GGC)2
bih.biClrUsed=0; 0A]+9@W;
bih.biCompression=0; =6PTT$,
bih.biHeight=btm.bmHeight; >!o||Yn
bih.biPlanes=1; CN7
2 E
bih.biSize=sizeof(BITMAPINFOHEADER); KwEyMR!
bih.biSizeImage=size; yeI((2L@E2
bih.biWidth=btm.bmWidth; Qn=#KS8=J
bih.biXPelsPerMeter=0; jv8diQ.
bih.biYPelsPerMeter=0; <xb =.xe
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); !CJh6X!
static int filecount=0; B,2oA]W"S
CString name; mmN!=mf*
name.Format("pict%04d.bmp",filecount++); $ mH'%YDIl
name=m_Path+name; E5>y?N
BITMAPFILEHEADER bfh; ],!7S"{97
bfh.bfReserved1=bfh.bfReserved2=0; w;e42.\
bfh.bfType=((WORD)('M'<< 8)|'B'); e}F1ZJz
bfh.bfSize=54+size;
vvWje:H
bfh.bfOffBits=54; x{GKz#
CFile bf; l"T{!Oq
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ OI@;ffHSW
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); {x&"b -
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); A.f!SYV6
bf.WriteHuge(lpData,size); ymNL`GYN[
bf.Close(); Ptj,9bf<\
nCount++; S"}G/lBx.
} @ V_@r@A
GlobalFreePtr(lpData); E~[v.3`
if(nCount==1) M1>2Q[h7
m_Number.Format("%d picture captured.",nCount); z8MKGM
else }&E'ox<S
m_Number.Format("%d pictures captured.",nCount); ]]R!MnU:$
UpdateData(FALSE); P~6QRm
} (x+C=1,
h;s~I/e(
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) Mk:k0,z
{ ^@"H(1Hxu/
if(pMsg -> message == WM_KEYDOWN) APne!
{ D@-'<0=
if(pMsg -> wParam == VK_ESCAPE) ,McwPHEMB
return TRUE; c8R#=^ DD
if(pMsg -> wParam == VK_RETURN) t<UtSkE1
return TRUE; fo$5WTY
} 58v q5j<V
return CDialog::PreTranslateMessage(pMsg); 4u!<3-3Zy
} <@+>A$~0
}3^b1D>2O
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 4`KQ@m
{ W*S!}ZT`
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ ;!k{{Xndd
SaveBmp(); -Hx._I$l
return FALSE; f:w#r.]
}
!623;
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ hny(:Dj
CMenu pop; @i" ^b
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); t;>"V.F<1
CMenu*pMenu=pop.GetSubMenu(0); 4E"OD+
pMenu->SetDefaultItem(ID_EXITICON); J|'e.1v
CPoint pt; bwr}Ge
GetCursorPos(&pt); &,4 3&pFU
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this);
6Cdc?#&
if(id==ID_EXITICON) "OdR"M(G\
DeleteIcon(); ~F{u4p7{N
else if(id==ID_EXIT) YtQsSU
OnCancel(); ~qjnV
return FALSE; )bl''
yO
} | e&v;48
LRESULT res= CDialog::WindowProc(message, wParam, lParam); 4ONou&T
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) $@VQ{S
AddIcon(); BGe&c,feIc
return res; $<]G#&F
} C>A*L4c]F
_QS +{
void CCaptureDlg::AddIcon() @P$_2IU"
{ f^EDiG>b`
NOTIFYICONDATA data; /d1
B-I
data.cbSize=sizeof(NOTIFYICONDATA); 65@,FDg*i
CString tip; kS\A_"bc
tip.LoadString(IDS_ICONTIP); KRL9dD,&
data.hIcon=GetIcon(0); 9rd7l6$R"
data.hWnd=GetSafeHwnd(); i&%/]Nq
strcpy(data.szTip,tip); 6wmMg i_m
data.uCallbackMessage=IDM_SHELL; tB,1+I=
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; t%B ,ATW
data.uID=98; yv2&K=rZp
Shell_NotifyIcon(NIM_ADD,&data); =9LeFrz
ShowWindow(SW_HIDE); Ah|,`0dw
bTray=TRUE; rX^wNH
} xn=/SIS
O<H5W|cM
void CCaptureDlg::DeleteIcon() <<ze84E
{ K~U5jpc
NOTIFYICONDATA data; I_h8)W
data.cbSize=sizeof(NOTIFYICONDATA); GD]yP..
data.hWnd=GetSafeHwnd(); C}7c:4c
data.uID=98; !8z,}HUdK
Shell_NotifyIcon(NIM_DELETE,&data); V~9s+>
ShowWindow(SW_SHOW); 3ZAPcpB2
SetForegroundWindow(); e2P
ds`
ShowWindow(SW_SHOWNORMAL); H7I&Ky
bTray=FALSE; @$e!|.{1q
} szDd!(&pv
L{2KK]IF
void CCaptureDlg::OnChange() 3T<aGW1
{ RV&