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:
,bJx|
K
n)yqb 一、实现方法
)XFMlSx) <Bwu N,} 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:
+7w>ujeeJA tH(Z9\L 7 #pragma data_seg("shareddata")
O?_'6T HHOOK hHook =NULL; //钩子句柄
qyto`n7 UINT nHookCount =0; //挂接的程序数目
n~Ix8|S h static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
^]HwStn&= static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
u|E,Wy1 static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
SWt"QqBU static int KeyCount =0;
iBCM?RiG static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
O7W}Z1G #pragma data_seg()
RN0Rk 8AC Oqyh{q%] 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\u4k {3V 4b)xW&K{ 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:
lc^%:#@ h!.(7qdd BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
{|cA[#j# cKey,UCHAR cMask)
`?:'_Ki {
0)Z7U$ BOOL bAdded=FALSE;
#AHIlUH"m for(int index=0;index<MAX_KEY;index++){
+_<#8v if(hCallWnd[index]==0){
4d O>L" hCallWnd[index]=hWnd;
q:(K^ HotKey[index]=cKey;
lWR HotKeyMask[index]=cMask;
v'uQ'CiH bAdded=TRUE;
O3Uu{'=0 KeyCount++;
8^T' a^Wt break;
_Uq'eZol }
R9HRbVBJf }
j2z$kw% return bAdded;
wBf
bpoE7 }
Tb[GZ,/%; //删除热键
E?-K_p BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
:?,&u,8 {
{VFpfo BOOL bRemoved=FALSE;
#Xc~3rg9 for(int index=0;index<MAX_KEY;index++){
NJ~'`{3v if(hCallWnd[index]==hWnd){
WJ%b9{< if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
R$\ieNb hCallWnd[index]=NULL;
6-o Qs? HotKey[index]=0;
`
H"5nQRV HotKeyMask[index]=0;
<rkF2 -K, bRemoved=TRUE;
>U17BGJ. KeyCount--;
(HEjmQjE break;
|:AjQ&PM) }
T@L^RaPX }
E'C[+iK6, }
wz ,woF| return bRemoved;
]2<g"zo0 }
~=71){4A *]rV,\z: hX^XtIC= DLL中的钩子函数如下:
W uQdz&s> EV}%D9: LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
:r\<DVj {
Tb}b*d3 BOOL bProcessed=FALSE;
ALG + if(HC_ACTION==nCode)
f"[C3o2P {
(Fu9lW}n if((lParam&0xc0000000)==0xc0000000){// 有键松开
d"V^^I)yx& switch(wParam)
_|F h^hq {
3[c54S+(U case VK_MENU:
^Tl|v'
MaskBits&=~ALTBIT;
%T&kK2d; break;
qRr;&M &t_ case VK_CONTROL:
M|\XFO MaskBits&=~CTRLBIT;
qU}[(9~Ru break;
Dx8^V%b case VK_SHIFT:
y(%6?a @ MaskBits&=~SHIFTBIT;
)t|M)z J break;
].$N@tC default: //judge the key and send message
:5dq<>~ break;
,Rf<6 /A }
7 `|- K for(int index=0;index<MAX_KEY;index++){
D;Z\GnD if(hCallWnd[index]==NULL)
dfNNCPu]+ continue;
Wg#>2)> if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Z*k}I{0,- {
J~~WV<6 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
Alrk3I3{ bProcessed=TRUE;
5nk]{ G> V }
H#f
FU }
\E n ^Vf }
RxAZ<8T_ else if((lParam&0xc000ffff)==1){ //有键按下
|d{4_o90 switch(wParam)
ZN.
#g_ {
(u~@@d" case VK_MENU:
Cjw|.c` MaskBits|=ALTBIT;
N^O.P break;
NL1Ajms` case VK_CONTROL:
]":PO4M$* MaskBits|=CTRLBIT;
WXJ%bH break;
se_1wCYz case VK_SHIFT:
1"i/*}M MaskBits|=SHIFTBIT;
Zb@PwH4 break;
Mq-;sPsFP default: //judge the key and send message
>2%!=q3) break;
R@;kYS }
%/4ChKf!VR for(int index=0;index<MAX_KEY;index++){
SoCa_9*X if(hCallWnd[index]==NULL)
;XANITV continue;
Nl0*"}`I_ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
}e1f kjWk {
gVb;sk^ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
P#iBwmwN+. bProcessed=TRUE;
O}2;>eH }
UZqr6A(/H }
?v6xaVg: }
{>90d(j if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
1X]?-+',. for(int index=0;index<MAX_KEY;index++){
oB+drDp8U if(hCallWnd[index]==NULL)
x2l~aw#? continue;
e~xN[Q\0] if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
|'.\}xt7 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
BjSLbw-C //lParam的意义可看MSDN中WM_KEYDOWN部分
QO~!S_FRH }
h^cM#L^B }
"1Vuf<?C }
g%Eb{~v return CallNextHookEx( hHook, nCode, wParam, lParam );
0ZTT^2R }
$)6y:t" I t",WFE. 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
ih~ R?W !?,rcgi BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
2Lm.;l4YO BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
qEE
V& NU O9, 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
%A%^;3@ T-0fVTeN LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
EP,lT.u3 {
Re-4y5f if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
"H#2 {
'V/+v#V+> //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
eX>x
+]l6 SaveBmp();
Rjt]^gb!* return FALSE;
TF2'-"2Y }
h<JV6h :8 …… //其它处理及默认处理
("?V| }
><^
, @w?hXK= ogtl
UCUD 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
c3lU *6<<6f`( 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
E{*d`n )CKPzNf 二、编程步骤
f<?v.5($ MDAJ
p>o 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";
;Lr]w8d B^nE^"b 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
m5`<XwD9 v;1<K@UT 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;
5 Sl vCL WS6'R 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;
V^apDV\AV
Mh3Tfp 5、 添加代码,编译运行程序。
sN"<baZ l$
^LY)i 三、程序代码
$b OiP 3RJsH:u8 ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
vq/3a #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
(l}W\iB'd #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
/fv;`?~d* #if _MSC_VER > 1000
#TS:|= #pragma once
\SKobO?qI #endif // _MSC_VER > 1000
@L0xU??"| #ifndef __AFXWIN_H__
vY)5<z& #error include 'stdafx.h' before including this file for PCH
*3
8
u ~n #endif
*MC+i$ #include "resource.h" // main symbols
RzhAXI= class CHookApp : public CWinApp
wNl{,aH@ {
wwaw|$ public:
h9RL(Kq{ CHookApp();
0 7b=Zhh // Overrides
&PZ&'N|P // ClassWizard generated virtual function overrides
i24t$7q //{{AFX_VIRTUAL(CHookApp)
eCFMWFhC public:
3127 4O virtual BOOL InitInstance();
>\[/e{Q" virtual int ExitInstance();
"lLwgh; //}}AFX_VIRTUAL
H< 51dJn~ //{{AFX_MSG(CHookApp)
W-D{cU // NOTE - the ClassWizard will add and remove member functions here.
gv\WI4"n // DO NOT EDIT what you see in these blocks of generated code !
ur\<NApT; //}}AFX_MSG
Vq$8!#~w DECLARE_MESSAGE_MAP()
mSeCXCrZlI };
:<gC7UW LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
YxowArV}uz BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
Y<qWG8X BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
z;iNfs0i$ BOOL InitHotkey();
V$0mcwH BOOL UnInit();
l$Y*ii #endif
pT|l "q@ tzJ7wXRr //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
aGBUFCCa #include "stdafx.h"
u43W.4H13 #include "hook.h"
18nT
Iz_ #include <windowsx.h>
@k+K_gR #ifdef _DEBUG
QlE]OAdB42 #define new DEBUG_NEW
WIKSz
{"=/ #undef THIS_FILE
N1iP!m9Q static char THIS_FILE[] = __FILE__;
)5Wt(p:T6_ #endif
&$yxAqdab #define MAX_KEY 100
m941 Y #define CTRLBIT 0x04
vB<9M-sa0 #define ALTBIT 0x02
ghGpi U$ #define SHIFTBIT 0x01
pF/s5z #pragma data_seg("shareddata")
BD,J4xH; HHOOK hHook =NULL;
g>E.Snj} UINT nHookCount =0;
tJ$gH; static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
2Y>#FEW/ static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
4ibOVBG:*, static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
+N}yqgE static int KeyCount =0;
;"B@QPX static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
Uz=OTM #pragma data_seg()
\r1nMw 3& HINSTANCE hins;
LIE5of void VerifyWindow();
;vG%[f`K BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
7y4jk //{{AFX_MSG_MAP(CHookApp)
wU(p_G3 // NOTE - the ClassWizard will add and remove mapping macros here.
l=UXikx // DO NOT EDIT what you see in these blocks of generated code!
:lW8f~! //}}AFX_MSG_MAP
nD.K*# u END_MESSAGE_MAP()
CT?4A1[aD 8'qq!WR~ CHookApp::CHookApp()
/Bq4! n+ {
y**YFQ*sc // TODO: add construction code here,
7bk`u'0% // Place all significant initialization in InitInstance
%/oeV;D }
Cz|F%>y# IFsh"i
CHookApp theApp;
;F|8#! ( LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
nvB<pSm {
[2{2w68D! BOOL bProcessed=FALSE;
Gv&%cq1 if(HC_ACTION==nCode)
"^Vnnb:Z*o {
&6e A. if((lParam&0xc0000000)==0xc0000000){// Key up
.;F%k,!v switch(wParam)
^P|Zze
zwU {
BD-
c<K" case VK_MENU:
Dy&{PeE! MaskBits&=~ALTBIT;
5[LDG/{Tys break;
/Z~5bb( case VK_CONTROL:
LNcoTdv}k MaskBits&=~CTRLBIT;
=%SH2kb break;
{4 {X`$ case VK_SHIFT:
vM?,#:5 MaskBits&=~SHIFTBIT;
$px1D$F ! break;
_Un*x5u2O default: //judge the key and send message
?f= ~Pn+ break;
CC)Mws+2 }
VpX*l3 for(int index=0;index<MAX_KEY;index++){
3/y"kl:<- if(hCallWnd[index]==NULL)
:28[k~.bo continue;
f}EsS if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
s14D(:t( {
Vkfc&+ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
OP|X- bProcessed=TRUE;
b,x$wP+ }
b#-=Dbe }
E|3[$?=R }
/ hg)=p else if((lParam&0xc000ffff)==1){ //Key down
r{{5@ switch(wParam)
.P#t"oW} {
+
B<7]\\M case VK_MENU:
_
h/:r1 MaskBits|=ALTBIT;
xb2j
|KY7 break;
*B)10R case VK_CONTROL:
O03F@v MaskBits|=CTRLBIT;
>9y!M'V break;
1HLU
& case VK_SHIFT:
H#M;TjR MaskBits|=SHIFTBIT;
@1~cPt
break;
XVF!l>nE default: //judge the key and send message
1 F&}e&}c break;
H2'djZ }
$F1Am% for(int index=0;index<MAX_KEY;index++)
~7gFddi=i {
X4L@|"ZI if(hCallWnd[index]==NULL)
JkI|Ojmm/ continue;
hcpe~spz9| if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
.pG`/[*a {
GL _hRu SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
J|
1!4R~ bProcessed=TRUE;
/IlO }
_FU}IfG>t }
mA#;6?6 }
MP_/eC ; if(!bProcessed){
uqVarRi$ for(int index=0;index<MAX_KEY;index++){
CDY3+! if(hCallWnd[index]==NULL)
3L-$+j~u continue;
'Z|Czd8E if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
^U);MH8 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
U] P{~ }
<kJ`qbOU }
y Ni3@f }
hY/qMK5 return CallNextHookEx( hHook, nCode, wParam, lParam );
Kpkpr`:)] }
He%v 4S >3,}^`l BOOL InitHotkey()
{N
<< JX {
^9]g5.z: if(hHook!=NULL){
H6Ytp^~> nHookCount++;
0KZ$v/m return TRUE;
dGUiMix{N }
\~r_S else
8?rq{&$t hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
e:K'e2 if(hHook!=NULL)
0$i\/W+ nHookCount++;
xf?"Q# return (hHook!=NULL);
]z]=?;ty% }
\TLfLqA BOOL UnInit()
Jpy~5kS {
p q%inSY if(nHookCount>1){
mz<X$2]? nHookCount--;
Y-,S_59 return TRUE;
:QF`Orb!^ }
Zq'FOzs BOOL unhooked = UnhookWindowsHookEx(hHook);
0d$LUQ't if(unhooked==TRUE){
h*Mt{A&'.& nHookCount=0;
s`pdy$ hHook=NULL;
nkz<t }
xVrLoAw return unhooked;
]z2x`P^oI }
F$'po# KO/#t~ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
6\Tq,I7 {
@V&HE:P BOOL bAdded=FALSE;
*\_>=sS x; for(int index=0;index<MAX_KEY;index++){
T+S\'f\ if(hCallWnd[index]==0){
Nrq/Pkmy hCallWnd[index]=hWnd;
A"0Yn(awWu HotKey[index]=cKey;
D~TlG@Pq HotKeyMask[index]=cMask;
v?}rA %so bAdded=TRUE;
;&!QN#_ KeyCount++;
0b<Qs88yd> break;
F0"("4h: }
a'?LC)^ }
UR(i_T&w return bAdded;
c[;A$P=
8. }
xiL+s- sGh TP/ BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Jx Kd {
0X$2~jV> BOOL bRemoved=FALSE;
a/3yn9`sQ for(int index=0;index<MAX_KEY;index++){
"yl6WG#J if(hCallWnd[index]==hWnd){
>jnx2$ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
:;IZ|hU hCallWnd[index]=NULL;
"Z~@"JLb% HotKey[index]=0;
t3*.Bm:^ HotKeyMask[index]=0;
}2^qM^,0 bRemoved=TRUE;
We*uZ?+ KeyCount--;
%$bhg&} break;
NBAOVYK }
zn0%%x+!g }
@:@5BCs< }
CYsLyk return bRemoved;
%s ;5 }
s2F[v:|Wq /XNC^!z6Js void VerifyWindow()
-S&d5(R {
>>M7#hmt for(int i=0;i<MAX_KEY;i++){
,s6lB0 if(hCallWnd
!=NULL){ B,` `2\B
if(!IsWindow(hCallWnd)){ N7GZ'-t^Er
hCallWnd=NULL; \^!<Y\\
HotKey=0; 3Vk\iJ
HotKeyMask=0; -~*kAh
KeyCount--; !Q,Dzv"7
} c Y+n 6k5
} /(9.Fqe(
} bZZ_yc
} mnw(x#%P
J3/e;5w2Z
BOOL CHookApp::InitInstance() gc
b8eB,
{ fp`m>}
-
AFX_MANAGE_STATE(AfxGetStaticModuleState()); n?S)H=
hins=AfxGetInstanceHandle(); R*lq.7
InitHotkey(); KM[&WT
return CWinApp::InitInstance(); G @]n(\7Y
} 'R#MH
]ki) (Bb
int CHookApp::ExitInstance() <e wcWr
{ xa967Ki9"
VerifyWindow(); gt=@v())
UnInit(); dKevhm)R"
return CWinApp::ExitInstance(); 5A%Uv*
} ]vw%J ^7:a
p _2Y c]8
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file uTdz$Nh
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) 7.+vp@+
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ )%
gU
#if _MSC_VER > 1000 :OqEkh"$#
#pragma once #miG"2ea..
#endif // _MSC_VER > 1000 <p?oFD_e4
8|u8J0^
class CCaptureDlg : public CDialog jN(c`Gb
{ T t_QAIl
// Construction ,>nf/c0.
public: I9nm$,i]7
BOOL bTray; \K lY8\c[
BOOL bRegistered; ^rGuyW#
BOOL RegisterHotkey(); ];eJ'#
UCHAR cKey; d"a\`#
UCHAR cMask; kt7Em b}
void DeleteIcon(); aU#r`D@0
void AddIcon(); !,sQB_09C
UINT nCount; 'oM=ZU8wo
void SaveBmp(); ,,g: x
CCaptureDlg(CWnd* pParent = NULL); // standard constructor m!(dk]
// Dialog Data 	HV
//{{AFX_DATA(CCaptureDlg) )Ofwfypc
enum { IDD = IDD_CAPTURE_DIALOG }; DZ:$p.
CComboBox m_Key; +S1h~@c:B
BOOL m_bControl; \_)mWK,h
BOOL m_bAlt; p77=~s
BOOL m_bShift; '*`1uomeo
CString m_Path; zQB1C
CString m_Number; oHF,k
//}}AFX_DATA sdKm@p|/|
// ClassWizard generated virtual function overrides <d[GGkY]=
//{{AFX_VIRTUAL(CCaptureDlg) M=1~BZQ(Z
public: E};1
H
virtual BOOL PreTranslateMessage(MSG* pMsg); 4KW_#d`t
protected: <!*O[0s
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support @mcP-
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); =`!#V/=
//}}AFX_VIRTUAL \SWuylE
// Implementation RGBntp%
protected: `2j"Z.=
HICON m_hIcon; 3qDuF
// Generated message map functions D+h`Z]"|
//{{AFX_MSG(CCaptureDlg) PpSQf14,
virtual BOOL OnInitDialog(); R#ya9GN{
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); LRdV_O1e6M
afx_msg void OnPaint(); xj5MKX{CJT
afx_msg HCURSOR OnQueryDragIcon(); DtZ7UX\P
virtual void OnCancel(); m$g{&
afx_msg void OnAbout(); n0uL^{B
afx_msg void OnBrowse(); VT;cz6"6b4
afx_msg void OnChange(); _z#S8Y
//}}AFX_MSG mhNgXp)_56
DECLARE_MESSAGE_MAP() >^v,,R8j
}; }To-c'
#endif 7!e kINQ
z:08;}t
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file !1<>][F
#include "stdafx.h" JP]-a!5Ru
#include "Capture.h" 8vj]S5
#include "CaptureDlg.h" m'2EiYX$}\
#include <windowsx.h> )-i (%;,*e
#pragma comment(lib,"hook.lib") FX~pjM
#ifdef _DEBUG R?:(~ X\
#define new DEBUG_NEW h0l_9uI
#undef THIS_FILE ei[, ug'
static char THIS_FILE[] = __FILE__; =[)2DJC
#endif <}%gZ:Z6g
#define IDM_SHELL WM_USER+1 vfh\X1Ui}
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); kvt^s0T8Q
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); )<T2J0*
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; ^>s{o5H&
class CAboutDlg : public CDialog hgdr\
F
{ ?~; q r
public: |e2s{J2
CAboutDlg(); fh&Q(:ZU
// Dialog Data !6J+#
//{{AFX_DATA(CAboutDlg) Enhrkk
enum { IDD = IDD_ABOUTBOX }; pQ`S%]k.<
//}}AFX_DATA 't475?bY
// ClassWizard generated virtual function overrides :|=Xh"l"
//{{AFX_VIRTUAL(CAboutDlg) CSr2\ogT
protected: OuB[[L
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 1+ V<-I@{
//}}AFX_VIRTUAL Oz=!EG|N
// Implementation I$f'BAw
protected: qITd.<
k
//{{AFX_MSG(CAboutDlg) X-SR0x
//}}AFX_MSG ,(kaC.Em
DECLARE_MESSAGE_MAP() J^mm"2
}; oho~?.F
Rts}y:44
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) UJ&gm_M+kL
{ %vU*4mH
//{{AFX_DATA_INIT(CAboutDlg) 3`ze<K((
//}}AFX_DATA_INIT %;O# y3,
} okBaQH2lUl
B,A\/%<
void CAboutDlg::DoDataExchange(CDataExchange* pDX) '~pZj"uy
{ ^!K 8nW{*
CDialog::DoDataExchange(pDX); (U*Zz+ R
//{{AFX_DATA_MAP(CAboutDlg) J*qo3aJjE
//}}AFX_DATA_MAP / KKA/
} f'u[G?C
^>h2.AJ
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 21~~ =+)X
//{{AFX_MSG_MAP(CAboutDlg) ;{"uG>#R
// No message handlers U5j0i]
//}}AFX_MSG_MAP N0(($8G
END_MESSAGE_MAP() XK
yW
?WrL<?r)}U
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) inyS 4tb
: CDialog(CCaptureDlg::IDD, pParent) ?MJ5GVeH
{ w)Y}hlcq
//{{AFX_DATA_INIT(CCaptureDlg) D^w<V%].
m_bControl = FALSE; 2/l4,x
m_bAlt = FALSE; d)v!U+-|'
m_bShift = FALSE; WZ
,t~TN
m_Path = _T("c:\\"); >fgV!o4
m_Number = _T("0 picture captured."); wM#q [m;
nCount=0; _;k))K^
bRegistered=FALSE; Xgo`XsA
bTray=FALSE; }Q{4G
//}}AFX_DATA_INIT !)uXCg9U
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 UG,n
q
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); TK#-;p_
} T!Uf
PfEI
jHc/ EZB
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) oX[I4i%G
{ (9!kKMQW'
CDialog::DoDataExchange(pDX); :$oi P
//{{AFX_DATA_MAP(CCaptureDlg) liVDBbS_A?
DDX_Control(pDX, IDC_KEY, m_Key); l78:.
DDX_Check(pDX, IDC_CONTROL, m_bControl); A
Zv| |8p
DDX_Check(pDX, IDC_ALT, m_bAlt); "C9.pdP\8
DDX_Check(pDX, IDC_SHIFT, m_bShift); ,+RoJwi m
DDX_Text(pDX, IDC_PATH, m_Path); L9 H.DNA
DDX_Text(pDX, IDC_NUMBER, m_Number); _2Fa.gi
//}}AFX_DATA_MAP f2{qj5 K
} #pX +~{
'Ie!%k ^
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) -o sxKT:
//{{AFX_MSG_MAP(CCaptureDlg) .t{?doOT
ON_WM_SYSCOMMAND() .n)0@X!
ON_WM_PAINT() %gXNWxv
ON_WM_QUERYDRAGICON() Y^uYc}
ON_BN_CLICKED(ID_ABOUT, OnAbout) 8j!(*'J.
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) p9iCrqi
ON_BN_CLICKED(ID_CHANGE, OnChange) _ 4+=S)$
//}}AFX_MSG_MAP ] Oe[;<I
END_MESSAGE_MAP() -!ERe@k(
SP5t=#M6
BOOL CCaptureDlg::OnInitDialog() n/GJ&qLi:g
{
%Lgfi
CDialog::OnInitDialog(); s B!2't
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); `jCq`-.
ASSERT(IDM_ABOUTBOX < 0xF000); SlUt&+)
CMenu* pSysMenu = GetSystemMenu(FALSE); s&qr2'F+z
if (pSysMenu != NULL) ^ px)W,O
{ n 0ls a@l
CString strAboutMenu; IN94[yW{1
strAboutMenu.LoadString(IDS_ABOUTBOX); ~7&O[
if (!strAboutMenu.IsEmpty()) 58_aI?~>>
{ ki|w?0s
pSysMenu->AppendMenu(MF_SEPARATOR); j_~lc,+m
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); '#x<Fo~hT
} Q$DF3[NC
} MYeGr3V3
SetIcon(m_hIcon, TRUE); // Set big icon c9;oB|8|
SetIcon(m_hIcon, FALSE); // Set small icon gc{5/U9H*
m_Key.SetCurSel(0); DX#F]8bWl
RegisterHotkey(); `z3"zso
CMenu* pMenu=GetSystemMenu(FALSE); BcD%`vGJ
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); e\>g@xE%
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); WjMP]ND#c
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); =;HmU.Uek%
return TRUE; // return TRUE unless you set the focus to a control +v'n[xa1v
} 78<QNlKn
&0S/]E`_M
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) %uhhQ<zs%
{ 'k[gxk|d2
if ((nID & 0xFFF0) == IDM_ABOUTBOX) G6x 2!Ny
{ sOW,hpNW
CAboutDlg dlgAbout; F`YxH*tO7
dlgAbout.DoModal(); Z'z~40Bda
} S~ 3|
else )Z2t=&Nw
{ JSm3ZP|GqJ
CDialog::OnSysCommand(nID, lParam); k~b8=$
} QYTwGThWR
} U9p^?\-=
pGGx.&5#82
void CCaptureDlg::OnPaint() hKW!kA=gZ
{ {:9P4<%H
if (IsIconic()) z?8Sie
{ 6 _\j_$
CPaintDC dc(this); // device context for painting 4i o02qd
4
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); 3$ 1 z
// Center icon in client rectangle '$n#~/#}
int cxIcon = GetSystemMetrics(SM_CXICON); )hai?v~g
int cyIcon = GetSystemMetrics(SM_CYICON); ;M Z@2CO
CRect rect; [M6/?4\
GetClientRect(&rect); xF3H\`{4x
int x = (rect.Width() - cxIcon + 1) / 2; /q8?xP.
int y = (rect.Height() - cyIcon + 1) / 2; >w=xGb7
// Draw the icon 7'xds
dc.DrawIcon(x, y, m_hIcon); ,W/D 0
} S+YbsLf
else in6iJ*E@'
{ VG`A* Vj
CDialog::OnPaint(); $R<eXDW6:
} 7eg//mL"6
} 4';tMiz
oxPb; %
HCURSOR CCaptureDlg::OnQueryDragIcon() W=~H_L?/
{ 8W_X&X?Q
return (HCURSOR) m_hIcon; +2ih!$T;7>
}
I"=XM
+iPS=?S
void CCaptureDlg::OnCancel() ~ Qt$)
{ =`]yq;(C7j
if(bTray) cAc i2e
DeleteIcon(); VgNt
CDialog::OnCancel(); [2,u:0 "
} jTx,5s-
[Pt5c6 L:
void CCaptureDlg::OnAbout()
Dk fw*Oo
{ TY|]""3f9
CAboutDlg dlg; JZQ$*K
dlg.DoModal(); BE}qwP^
} lA<IcW
W$Bx?}x($
void CCaptureDlg::OnBrowse() :8aIj_qds
{ K9*#H(
CString str; LHWh-h(s
BROWSEINFO bi; A4?_0:<
char name[MAX_PATH]; &~Q ?k
ZeroMemory(&bi,sizeof(BROWSEINFO)); ;D[b25
bi.hwndOwner=GetSafeHwnd(); jL)aU> kN
bi.pszDisplayName=name; 5\tYs=>b<
bi.lpszTitle="Select folder"; yXw xq(32
bi.ulFlags=BIF_RETURNONLYFSDIRS; BI=Ie?
LPITEMIDLIST idl=SHBrowseForFolder(&bi); mlgdwM
if(idl==NULL) 8C=Y(vPk2
return; m-a_<xo
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); ?^&!/,
str.ReleaseBuffer(); ls6ywLP{
m_Path=str; s^9N7'
if(str.GetAt(str.GetLength()-1)!='\\') "FaG5X(
m_Path+="\\"; RS/%uxS?
UpdateData(FALSE); Nu{RF
} +Z[%+x92
0p$?-81BJ
void CCaptureDlg::SaveBmp() q#PGcCtu
{ ^dYLB.'=
CDC dc; MnsnW{VGX
dc.CreateDC("DISPLAY",NULL,NULL,NULL); TR@$$RrU
CBitmap bm; "O|fX\}5
int Width=GetSystemMetrics(SM_CXSCREEN); N2tvP+Z6D
int Height=GetSystemMetrics(SM_CYSCREEN); Y^S0K'N
bm.CreateCompatibleBitmap(&dc,Width,Height); (w% hz']
CDC tdc; ~eL7=G@{
tdc.CreateCompatibleDC(&dc); |_~BV&g,N
CBitmap*pOld=tdc.SelectObject(&bm); $zz=>BOk
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); .?S#DS )
tdc.SelectObject(pOld); sa+:c{
BITMAP btm; AJ:@c7:eS
bm.GetBitmap(&btm); $b$r,mc
DWORD size=btm.bmWidthBytes*btm.bmHeight; yZFvpw|g
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); tQJ@//C\z
BITMAPINFOHEADER bih; +.\JYH=yEr
bih.biBitCount=btm.bmBitsPixel;
v-[|7Pg}Z
bih.biClrImportant=0; \{+7`4g
bih.biClrUsed=0; rf1nC$Sop
bih.biCompression=0; ;Xgy2'3
bih.biHeight=btm.bmHeight; g)&-S3\
bih.biPlanes=1; uD:O[H-x
bih.biSize=sizeof(BITMAPINFOHEADER); r:Cad0xj;^
bih.biSizeImage=size; Q:VD2<2
bih.biWidth=btm.bmWidth; ,bmTBZV
bih.biXPelsPerMeter=0; a$t [}D2
bih.biYPelsPerMeter=0; nhXa&Nro
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); rmQGzQnun
static int filecount=0; /yrR
f;}<O
CString name; &[\rnJ?D
name.Format("pict%04d.bmp",filecount++); ZVIBmx
name=m_Path+name; iJrscy-
BITMAPFILEHEADER bfh; OR"n i
bfh.bfReserved1=bfh.bfReserved2=0; +bf%]
bfh.bfType=((WORD)('M'<< 8)|'B'); |klL KX&
bfh.bfSize=54+size; pdnL~sv
bfh.bfOffBits=54; N'm:V
CFile bf; PLo.q|%
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ bJB:]vs$
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); Cfz1\a&V{
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); ]\r~"*TZ
bf.WriteHuge(lpData,size); 9y]$c1
bf.Close(); !8=uBS%
nCount++; x|<|eRYK
} &|E2L1
GlobalFreePtr(lpData); EUna_ 4=
if(nCount==1) gi;V~>kh
m_Number.Format("%d picture captured.",nCount); 6u:5]e8
else oS,<2Z
m_Number.Format("%d pictures captured.",nCount); ,}FYY66K
UpdateData(FALSE); NKd@Kp`,
} 7 cIVK}&
)s=z i"
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) ,CM$A}7[
{ 5K6_#g4"
if(pMsg -> message == WM_KEYDOWN) $V~%$
{ Va*Uwy?x/)
if(pMsg -> wParam == VK_ESCAPE) s9[v_(W
return TRUE; At bqj?
if(pMsg -> wParam == VK_RETURN) 4qm5`o\hb
return TRUE; eEc;w#
} 5&9(d_#H
return CDialog::PreTranslateMessage(pMsg); Ca1)>1Vz
} u5CT7_#)
&