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:
z=7|{ G
x=Hndx^ 一、实现方法
Q.U$nph\%d P\nC?!Q%c 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
"xJ 0 vlw 3oy~= #pragma data_seg("shareddata")
OJAIaC\ HHOOK hHook =NULL; //钩子句柄
EZDy+6b UINT nHookCount =0; //挂接的程序数目
8,"yNq static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
x_#-tB static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
Tr&M~Lgb) static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
O,@~L$a:YZ static int KeyCount =0;
I=DxRgt static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
7q=G&e7 #pragma data_seg()
g'$tj&Vk: bGF7Zh9 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
g\SrO {* ,XkGe DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
9W ^xlid6 ~|ss*`CT BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
O1&b]C# cKey,UCHAR cMask)
^wb:C[r!V {
>Z.\J2wM<j BOOL bAdded=FALSE;
eLD|A=X? for(int index=0;index<MAX_KEY;index++){
KhbYr$ if(hCallWnd[index]==0){
q.YfC hCallWnd[index]=hWnd;
kzn[
=P HotKey[index]=cKey;
N_pUv HotKeyMask[index]=cMask;
[U, ?R bAdded=TRUE;
p>v U?eF KeyCount++;
"KX=ow#z| break;
IuF_M<d, }
^5GW$ }
cvd\/pG) return bAdded;
mEyK1h1G@ }
D]G)j //删除热键
:#~U<C@o BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
KJ2Pb"s {
&fa5laJb BOOL bRemoved=FALSE;
7CXW#H for(int index=0;index<MAX_KEY;index++){
!~]<$WZV if(hCallWnd[index]==hWnd){
}Ew hj>w if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
j^tW
Iz hCallWnd[index]=NULL;
3DgsI7-F HotKey[index]=0;
sZ,Y60s8a HotKeyMask[index]=0;
L"jY+{oLIJ bRemoved=TRUE;
7{@l%jx][ KeyCount--;
($w@Z/; break;
0& >H^ }
SP* fv` }
v3d&*I }
Y6i _!z[V[ return bRemoved;
G7!W{;@I }
dovZ#D@Q gKLyL]kAGz &8.NT~"Gg DLL中的钩子函数如下:
05yZad* 5tjP6Z`!9` LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
W&(k!6<x {
!-`Cp3gqHr BOOL bProcessed=FALSE;
X\$ 0 if(HC_ACTION==nCode)
goat<\a {
$$b
9&mTl# if((lParam&0xc0000000)==0xc0000000){// 有键松开
m5mu: switch(wParam)
6 DG@?O {
8r"+bhGx~ case VK_MENU:
xx{!3 F MaskBits&=~ALTBIT;
eW5SFY. break;
Q+4tIrd+ case VK_CONTROL:
h$eEn l} MaskBits&=~CTRLBIT;
o<IAeH {+ break;
/~*_x=p: case VK_SHIFT:
Lip4)Y [ MaskBits&=~SHIFTBIT;
,p(<+6QZ break;
dL7E<?l default: //judge the key and send message
Y!iZW break;
z#BR5jF }
}_=eT] for(int index=0;index<MAX_KEY;index++){
su*Pk|6% if(hCallWnd[index]==NULL)
'lHdOG continue;
(=D&A<YX if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
3(C\.oRc {
gs!(;N\j| SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
.ERO|$fv bProcessed=TRUE;
Ookh<ES> }
f&v9Q97= }
9zYVC[o }
:Gm/ else if((lParam&0xc000ffff)==1){ //有键按下
uqz]J$ switch(wParam)
SBA?^T {
X7k.zlH7T case VK_MENU:
iq(
)8nxi MaskBits|=ALTBIT;
N?Lb break;
>pUtwIP case VK_CONTROL:
BIuK @$ MaskBits|=CTRLBIT;
\%UkSO\nO3 break;
V#VN%{ case VK_SHIFT:
UAoh`6vFF8 MaskBits|=SHIFTBIT;
)K &( break;
MSf;ZB default: //judge the key and send message
KYzv$oK break;
F:x [ }
.r*2| for(int index=0;index<MAX_KEY;index++){
z5ij(RE] if(hCallWnd[index]==NULL)
LL:_L< continue;
%*BlWk!Q if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
>EY3/Go> {
vpmj||\- SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
}&_/PA0j bProcessed=TRUE;
MEB it }
ER,1(1]N }
vWAL^?HUP }
d!eYqM7-G if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
x.S3Zi}= for(int index=0;index<MAX_KEY;index++){
M4as if(hCallWnd[index]==NULL)
;!(<s,c#: continue;
*z@>!8? if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
j?'GZ d"B SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
\rv<$d@L //lParam的意义可看MSDN中WM_KEYDOWN部分
t!RiU ZAo }
5\z`-) }
>2~=)L }
wI(M^8F_Mf return CallNextHookEx( hHook, nCode, wParam, lParam );
k:7(D_ }
;!yQ A~-b!Grf 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:
UX7t`l2R |1j["u1 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
| Bi! BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
Y]&j,j& l\i)$=d&g 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:
;^Dpl'v%\ :O uA)f LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
KCs[/] {
R17?eucZ if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
h$2</J" {
#\=F O> //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
yqPdl1{Qr= SaveBmp();
!r<pmr3f@7 return FALSE;
ZHa"isl$e }
<Y}R#o1Z …… //其它处理及默认处理
wb0L.'jyR) }
WlU0:(d VVlr*` q<M2,YrbAI 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。
jyCXJa-!- q@{Bt{$x 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。
/'/Xvm3 $&=S#_HQS 二、编程步骤
LGn:c; }4,L%$@n 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";
'dn]rV0(C !z>6Uf!{ 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
2'w?\{}D ~sh`r{0 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;
?32&]iM
oW }~L.qG 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;
E 7{U|\ qi^7 5、 添加代码,编译运行程序。
~A\GT$ 9iQq.$A . 三、程序代码
F%RRd/' |!4K!_y ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
1eF3` #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
.6Pw|xu`Pw #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
5?x>9Ca #if _MSC_VER > 1000
(JOgy.5C~ #pragma once
r 8RoE`/T #endif // _MSC_VER > 1000
,>%}B3O:Y= #ifndef __AFXWIN_H__
%$.3V#? #error include 'stdafx.h' before including this file for PCH
)P
sY($ & #endif
NPp;78O0[ #include "resource.h" // main symbols
lNYt`xp class CHookApp : public CWinApp
@u6B;)'l {
M<v%CawS public:
t7aefV&_, CHookApp();
ZpQ)IHA. // Overrides
cPlZXf // ClassWizard generated virtual function overrides
]Gsv0Xk1 //{{AFX_VIRTUAL(CHookApp)
s*. hl.k. public:
T{-CkHf9Q virtual BOOL InitInstance();
~UP[A'9jJ virtual int ExitInstance();
J cd- //}}AFX_VIRTUAL
J| w>a //{{AFX_MSG(CHookApp)
\| 8 // NOTE - the ClassWizard will add and remove member functions here.
Wi)_H$KII // DO NOT EDIT what you see in these blocks of generated code !
9dx/hFA //}}AFX_MSG
|Y,b?*UF DECLARE_MESSAGE_MAP()
Hquc
o };
ZbdZrE$ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
X4~y7 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
b0Ps5G\ u BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
#cI{Fe0h BOOL InitHotkey();
3EPv"f^V BOOL UnInit();
]>5/PD,wWy #endif
5Odhb vg32y /l]S //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
b gK}-EU #include "stdafx.h"
Po^?QVJ7 #include "hook.h"
T4Pgbop #include <windowsx.h>
W')Yg5T #ifdef _DEBUG
m;GCc8 #define new DEBUG_NEW
wfLaRP #undef THIS_FILE
?^al9D[:lz static char THIS_FILE[] = __FILE__;
*Q
"wwpl? #endif
!Dn,^ #define MAX_KEY 100
-lY6|79bF #define CTRLBIT 0x04
4O^xY
6m #define ALTBIT 0x02
SE1=>S%p #define SHIFTBIT 0x01
'-Vt|O_Q #pragma data_seg("shareddata")
ek*rp`y] HHOOK hHook =NULL;
%]} UINT nHookCount =0;
| ATvS2 static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
+%h8r5o1 static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
c(xrP/yOwi static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
Ng2twfSl$ static int KeyCount =0;
Z 2V.3 static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
52Z2]T
c, #pragma data_seg()
Yg||{ HINSTANCE hins;
&]|?o_p3W void VerifyWindow();
@@Kp67Iv BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
8V`WO6* //{{AFX_MSG_MAP(CHookApp)
6d<r= C= // NOTE - the ClassWizard will add and remove mapping macros here.
2} /aFR // DO NOT EDIT what you see in these blocks of generated code!
3
/g~A{ //}}AFX_MSG_MAP
(c=6yV@ END_MESSAGE_MAP()
/
*#r`A -
M4JJV( CHookApp::CHookApp()
dO!
kk"qn {
^BikV // TODO: add construction code here,
*av<E // Place all significant initialization in InitInstance
E Nhl&J }
"jKY1*? -b9\=U[ CHookApp theApp;
@=}0`bE LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
SJn;{X>)q {
[}E='m}u9+ BOOL bProcessed=FALSE;
/[
5gX^A if(HC_ACTION==nCode)
On9A U:\ {
6*78cg Io if((lParam&0xc0000000)==0xc0000000){// Key up
Rq'S>#e switch(wParam)
PR#exm& {
nv|NQ
Tk case VK_MENU:
7rc0yB
MaskBits&=~ALTBIT;
X9W@&zQ break;
X!TpYUZ' case VK_CONTROL:
5H<m$K4z MaskBits&=~CTRLBIT;
KOk4^#h@ break;
y}" O U case VK_SHIFT:
l*Gvf_UH MaskBits&=~SHIFTBIT;
M2,l7
break;
-A^ _{4X default: //judge the key and send message
%S960 break;
ZB=
E}]v6 }
[Kg+^N%+ for(int index=0;index<MAX_KEY;index++){
u&Yz[)+b=g if(hCallWnd[index]==NULL)
NvceYKp: continue;
S6Q if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
WUn]F~Lt {
vxBgGl SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
C!<Ou6}!b bProcessed=TRUE;
H(ARw'M }
~D j8z+^ }
_YhES-Ff }
l` lk-nb else if((lParam&0xc000ffff)==1){ //Key down
{T$9?`h~M switch(wParam)
Cgk<pky1 {
y@S$^jk. case VK_MENU:
3) <yod= MaskBits|=ALTBIT;
A4x]Qh3OO break;
*SJ_z(CZm case VK_CONTROL:
{#vgtgBB MaskBits|=CTRLBIT;
y&$A+peJ1 break;
gV's=cQ case VK_SHIFT:
s%7t"-=& MaskBits|=SHIFTBIT;
~d.Y&b break;
,wb:dj- default: //judge the key and send message
K<3A1'_ break;
X]TG<r }
Tv,[DI + for(int index=0;index<MAX_KEY;index++)
O3,jg|, {
yLvDMPj if(hCallWnd[index]==NULL)
#CTE-W"|HE continue;
D0-3eV- if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
JX;<F~{. {
0*3R=7_},o SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
gh]cXuph bProcessed=TRUE;
ZPLm]I\] }
AofKw }
SwGx?U }
hE D}h![ if(!bProcessed){
g
wRZ%.Cn for(int index=0;index<MAX_KEY;index++){
|tH4:%Q' if(hCallWnd[index]==NULL)
Q~
w|# continue;
Rsm^Z!sn if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
W' VslZG SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
tCH!my_ }
Naf0)3q>! }
(=AWOU+ }
W:2( .? return CallNextHookEx( hHook, nCode, wParam, lParam );
\';gvr| }
Ty?cC** q6luUx,@m BOOL InitHotkey()
_1\v {
_
]ipajT if(hHook!=NULL){
+SU8 +w nHookCount++;
F v2-( return TRUE;
"%w u2%i }
s/#!VnU6 else
By!o3}~g hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
m+[Ux{$ if(hHook!=NULL)
VscE ^'+ nHookCount++;
&DX! f return (hHook!=NULL);
EI%89i`3^ }
A}9`S6 @@ BOOL UnInit()
)*J^K?!S {
0v?"tOT! if(nHookCount>1){
%J?xRv! nHookCount--;
Ffz,J6b return TRUE;
JX;G<lev }
QA`sx BOOL unhooked = UnhookWindowsHookEx(hHook);
aeJHMHFc if(unhooked==TRUE){
YK'<NE3 4 nHookCount=0;
g]H<}4lgq" hHook=NULL;
rq].UCj }
BX7kO0j return unhooked;
D/&o&G96 }
T.BW H2gRP A?P_DA BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
6%_nZvRv {
IOmfF[ BOOL bAdded=FALSE;
.t!x<B for(int index=0;index<MAX_KEY;index++){
]w8(&,PP if(hCallWnd[index]==0){
KkbD W3- hCallWnd[index]=hWnd;
b]#AI
qt HotKey[index]=cKey;
hL{KRRf> HotKeyMask[index]=cMask;
tS=(}2Q bAdded=TRUE;
;*Et[}3 KeyCount++;
ea
'D td break;
?+@?Up0wGO }
!l8PDjAE }
;N0XFjdR return bAdded;
Wd:uV }
0S!K{xyR l'_r:b BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
$%#!bV {
q>+k@>bk@ BOOL bRemoved=FALSE;
JPw.8|V)y for(int index=0;index<MAX_KEY;index++){
]{@-HTt if(hCallWnd[index]==hWnd){
uy$e?{Jf if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
YU'E@t5 hCallWnd[index]=NULL;
3F2w-+L HotKey[index]=0;
Wh*uaad7 HotKeyMask[index]=0;
?CPahU bRemoved=TRUE;
d\8l`Krs[_ KeyCount--;
!pX>!&sb break;
x'<X!gw }
3XV/Fb}!(i }
)3EY; }
;HO= return bRemoved;
mCVFS=8V }
/y}xX vA8nvoi void VerifyWindow()
!%c\N8<>GD {
)jP1or for(int i=0;i<MAX_KEY;i++){
Yc?*dUV if(hCallWnd
!=NULL){ e(t\g^X
if(!IsWindow(hCallWnd)){ BRiE&GzrF
hCallWnd=NULL; '~=SzO
HotKey=0; /a4{?? #e
HotKeyMask=0; XW]tnrs
KeyCount--; (O3nL.
} -uf|w?
} [7Oe3=
} UP,c |
} 83#mB:^R
}o`76rDN
BOOL CHookApp::InitInstance() H G^'I+Yn
{ vXje^>_6
AFX_MANAGE_STATE(AfxGetStaticModuleState()); `b$.%S8uj=
hins=AfxGetInstanceHandle(); ~Mxvq9vaD
InitHotkey(); 2BwO!Y[
return CWinApp::InitInstance(); 0 @oJFJrO
} ud('0r',D
*$g-:ILRuZ
int CHookApp::ExitInstance() vr=#3>
{ +CNv l
VerifyWindow(); X'iWJ8
UnInit(); wFZP,fQ9l
return CWinApp::ExitInstance(); &tj!*k'
} 4.t-i5
%EB/b
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file Ysv"
6b}
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_)
ew4U)2J+
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ Gk6iIK
#if _MSC_VER > 1000 >z@0.pN]7
#pragma once jse&DQ
#endif // _MSC_VER > 1000 S)@j6(HC4
sQZhXaMa $
class CCaptureDlg : public CDialog 9G2FsM|,
{ I; rGD^
// Construction G"A#Q"
public: WH^%:4
BOOL bTray; a\*yZlXKs
BOOL bRegistered; 0</);g}
BOOL RegisterHotkey(); Y.p;1"
UCHAR cKey; ]D\D~!R
UCHAR cMask; VI*$em O0
void DeleteIcon(); >XfbP]
void AddIcon(); RZTiw^
UINT nCount; yJIscwF
void SaveBmp(); (#c:b
CCaptureDlg(CWnd* pParent = NULL); // standard constructor 9hyn`u.
// Dialog Data )8ZH-|N`!E
//{{AFX_DATA(CCaptureDlg) qJ-/7-$ ^
enum { IDD = IDD_CAPTURE_DIALOG }; dSHDWu&
CComboBox m_Key; AA>P`C$&M
BOOL m_bControl; 2D5StCF$O
BOOL m_bAlt; La[V$+Y
BOOL m_bShift; 3ckclO\|>
CString m_Path; `Urhy#LC
CString m_Number; < =IFcN
//}}AFX_DATA 7b+6%fV
// ClassWizard generated virtual function overrides ?}Y]|c^W
//{{AFX_VIRTUAL(CCaptureDlg) oQJtUP%
public: pd$[8Rmj_
virtual BOOL PreTranslateMessage(MSG* pMsg); a d\ot#V
protected: Tw<q,O
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 6_B]MN!(
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); ,PDQzJY
//}}AFX_VIRTUAL MF'JeM;H
// Implementation 8 LCb+^
protected: kyV8K#}%8
HICON m_hIcon; "#g}ve,
// Generated message map functions iWR)ke
//{{AFX_MSG(CCaptureDlg) <F'\lA9
virtual BOOL OnInitDialog(); P.DK0VgY
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); #AY&BWS$
afx_msg void OnPaint(); gjlx~.0d
afx_msg HCURSOR OnQueryDragIcon(); !5!<C,U
virtual void OnCancel(); {{!-Gr
afx_msg void OnAbout(); ~"A0Rs=
afx_msg void OnBrowse(); %(Icz?
afx_msg void OnChange(); );YDtGip J
//}}AFX_MSG 1xvu<|F
DECLARE_MESSAGE_MAP() r.U`Kh]K
}; Q,Eo mt
#endif k;Y5BB
gRzxLf`K
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file 19#\+LWA
#include "stdafx.h" D2O~kNd
#include "Capture.h" 3OB"#Ap8<
#include "CaptureDlg.h" noj0F::m`j
#include <windowsx.h> 4skD(au8
#pragma comment(lib,"hook.lib") yf,z$CR
#ifdef _DEBUG qxc[M8s
#define new DEBUG_NEW x?<FJ"8"k
#undef THIS_FILE MHwIA *R
static char THIS_FILE[] = __FILE__; A@u@ift
#endif NHE18_v5
#define IDM_SHELL WM_USER+1 ~V6D<
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); NxILRKwO
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); 0"SU_jQzv
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; ~.|_ RdN
class CAboutDlg : public CDialog w32y3~
{ LR3*G7
public: fN2lLn9/u
CAboutDlg(); y1#1Ne_
// Dialog Data 7}mFL*
//{{AFX_DATA(CAboutDlg) wuo,kM
enum { IDD = IDD_ABOUTBOX }; 8FhdN
//}}AFX_DATA iURe( [@
// ClassWizard generated virtual function overrides !5N.B|Nt
//{{AFX_VIRTUAL(CAboutDlg) 5lum $5
protected: |':{lH6+1
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support Y4YJJYvD
//}}AFX_VIRTUAL n&!-9:0
// Implementation }QmqoCAE~m
protected: (h
`V+
//{{AFX_MSG(CAboutDlg) xYB{;K
//}}AFX_MSG nr3==21Om4
DECLARE_MESSAGE_MAP() `GLx#=Q
}; 1.>m@Slr>
ptaKf4P^r
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) lLIAw$
{ @}ZVtrz
//{{AFX_DATA_INIT(CAboutDlg) 1
TXioDs=_
//}}AFX_DATA_INIT "Y.y:Vv;
} p
K$`$H
R|Q?KCI&
void CAboutDlg::DoDataExchange(CDataExchange* pDX) 8?C5L8)
{ (-co.
CDialog::DoDataExchange(pDX); 5-A\9UC*@
//{{AFX_DATA_MAP(CAboutDlg) _VXN#@y
//}}AFX_DATA_MAP "gwSJ~:ds
} *K;~!P
-n;}n:wL
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) WY]s |2a
//{{AFX_MSG_MAP(CAboutDlg) }K9H^H@r!
// No message handlers 8b=_Y;
//}}AFX_MSG_MAP eV~goj
END_MESSAGE_MAP() >-c8q]()ly
K,UMqAmk
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) F:ELPs4"
: CDialog(CCaptureDlg::IDD, pParent) wKHBAW[i]
{ fXB0j;A
//{{AFX_DATA_INIT(CCaptureDlg) Z6m)tZVM
m_bControl = FALSE; p b,. r
m_bAlt = FALSE; :v 4]D4\o
m_bShift = FALSE; IRbfNq^:
m_Path = _T("c:\\"); WF"k[2
m_Number = _T("0 picture captured."); #LCb
nCount=0; ?X;RLpEc|A
bRegistered=FALSE; [00m/fT6
bTray=FALSE; $od7;%
//}}AFX_DATA_INIT %XTI-B/K
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 2T`!v
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); yLcEX
} Xm&L
BX
g,Y/M3>(
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) Ap !lQ>p
{ i6N',&jFU
CDialog::DoDataExchange(pDX); S
tyfB
//{{AFX_DATA_MAP(CCaptureDlg) .|=\z9_7S8
DDX_Control(pDX, IDC_KEY, m_Key); E} .^kc[(4
DDX_Check(pDX, IDC_CONTROL, m_bControl); jh$='G n
DDX_Check(pDX, IDC_ALT, m_bAlt); 92-I~
!d
DDX_Check(pDX, IDC_SHIFT, m_bShift); WPDyu.QD
DDX_Text(pDX, IDC_PATH, m_Path); O
H7FkR
DDX_Text(pDX, IDC_NUMBER, m_Number); 0BsYavCR
//}}AFX_DATA_MAP
2TuU2 f.
} y> (w\K9W
8>%hz$no=
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) (iGTACoF
//{{AFX_MSG_MAP(CCaptureDlg) d!{r v
ON_WM_SYSCOMMAND() q'11^V!0
ON_WM_PAINT() B1Oq!k
ON_WM_QUERYDRAGICON() \[nut;
ON_BN_CLICKED(ID_ABOUT, OnAbout) =Runf
+}
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) LHmZxi?
ON_BN_CLICKED(ID_CHANGE, OnChange) <6=c,y
//}}AFX_MSG_MAP C.QO#b
END_MESSAGE_MAP() eiOW#_"\
9ll~~zF99|
BOOL CCaptureDlg::OnInitDialog() uVU)d1N
{ zn(PI3+]!
CDialog::OnInitDialog(); Ct|A:/z(
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); k_R"CKd
ASSERT(IDM_ABOUTBOX < 0xF000); `,0}ZzaV&
CMenu* pSysMenu = GetSystemMenu(FALSE); tI{_y
if (pSysMenu != NULL) y!%CffF2
{ 1nOCQ\$l
CString strAboutMenu; /Q )\ +
strAboutMenu.LoadString(IDS_ABOUTBOX); 3ANQaUC
if (!strAboutMenu.IsEmpty()) A(N4N
{ 1&$ nVQ
pSysMenu->AppendMenu(MF_SEPARATOR); XZwK6F)L
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); c"xK`%e
} \C1nZk?3
} ,=N.FS
SetIcon(m_hIcon, TRUE); // Set big icon Xm2'6f,
SetIcon(m_hIcon, FALSE); // Set small icon HorDNRyu
m_Key.SetCurSel(0); p<;0g9,1
RegisterHotkey(); #D|p2L$
CMenu* pMenu=GetSystemMenu(FALSE); iyog`s c
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); Xry47a
)
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); %07SFu#
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); l@:0e]8|o
return TRUE; // return TRUE unless you set the focus to a control V1JIht>Opo
} .{KVMc
Lh<).<S
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) 6 aV_@no.C
{ hpJ-r
if ((nID & 0xFFF0) == IDM_ABOUTBOX) 3k?X-|O8AZ
{ {}x^ri~
CAboutDlg dlgAbout; ]+$?u&0?w
dlgAbout.DoModal(); [trwBZ^D~
} bJ;'`sw1
else =I~mKn
{ E.>4C[O
CDialog::OnSysCommand(nID, lParam); MJrR[h]
} YAmb`CP
} >"<Wjr8W!$
3yXY.>'
void CCaptureDlg::OnPaint() k$7Jj-+~
{ {}Za_(Y,]
if (IsIconic()) s|ITsz0,td
{ [c06 N$:
CPaintDC dc(this); // device context for painting F}qc0
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); Hq 188<
// Center icon in client rectangle j8`BdKg
int cxIcon = GetSystemMetrics(SM_CXICON); u~-8d;+?y
int cyIcon = GetSystemMetrics(SM_CYICON); +2j AC r
CRect rect; BF <ikilR
GetClientRect(&rect); {qMIGwu
int x = (rect.Width() - cxIcon + 1) / 2; !?gKqx'T$
int y = (rect.Height() - cyIcon + 1) / 2; k#rBB
// Draw the icon `~`k_7t.
dc.DrawIcon(x, y, m_hIcon); IaXeRq?<
} fd2T=fz-
else O7IJ%_A&
{ alvrh'51
CDialog::OnPaint(); k@:%:Sj 2
} Tu 7QCr5*
} v}Fr@0%
JO<wU
HCURSOR CCaptureDlg::OnQueryDragIcon() "w.3Q96r
{ ia 73?*mXT
return (HCURSOR) m_hIcon; 3%ZOKb"D*
} *=c1do%F
RdML3E
void CCaptureDlg::OnCancel() ;d9QAN&0}
{ D5HZ2cz|a
if(bTray) "FKOaQ%IH
DeleteIcon(); ^v`\x5"Vp
CDialog::OnCancel(); W{gb:^;zb
} 6i~WcAs
e)O4^#i
void CCaptureDlg::OnAbout() |H+Wed|
{ k)Qtfj}uij
CAboutDlg dlg;
(ICd}
dlg.DoModal(); ,WB{i^TD
} (*)hD(C5
hfy_3} _
void CCaptureDlg::OnBrowse() "6?0h[uff
{ /~f'}]W
CString str; NTI+
BROWSEINFO bi; q%?in+l
char name[MAX_PATH]; H+Sz=tg5
ZeroMemory(&bi,sizeof(BROWSEINFO)); )%@J=&G8TT
bi.hwndOwner=GetSafeHwnd(); /RC7"QzL
bi.pszDisplayName=name; >&5DsV.B
bi.lpszTitle="Select folder"; ]wG{!0pl
bi.ulFlags=BIF_RETURNONLYFSDIRS; NPe%F+X
LPITEMIDLIST idl=SHBrowseForFolder(&bi); J~UuS+Ufv
if(idl==NULL) Tyf`j,=
return; Eg3q!J&Z
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); C-[eaHJ'$
str.ReleaseBuffer(); p"ZG%Ow5Q]
m_Path=str; w=J3=T@TD
if(str.GetAt(str.GetLength()-1)!='\\') :A'y+MnK<
m_Path+="\\"; ';=O 0)u
UpdateData(FALSE); =rCIumqD-}
} pD#rnp>WWt
.UY^oR=b{
void CCaptureDlg::SaveBmp() M1iS(x
{ )f<z%:I+Z
CDC dc; m-"w0Rl1T
dc.CreateDC("DISPLAY",NULL,NULL,NULL); 3x'|]Ns
CBitmap bm; W]5w \
int Width=GetSystemMetrics(SM_CXSCREEN); *itUWpNhr
int Height=GetSystemMetrics(SM_CYSCREEN); _t #k,;
bm.CreateCompatibleBitmap(&dc,Width,Height); 9c :cw
CDC tdc; ` v@m-j6
tdc.CreateCompatibleDC(&dc); ~AT'[(6
CBitmap*pOld=tdc.SelectObject(&bm); Y#P%6Fy
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); @7j AL -
tdc.SelectObject(pOld); `,TzQ
BITMAP btm; VZmLS 4E
bm.GetBitmap(&btm); ByNn
DWORD size=btm.bmWidthBytes*btm.bmHeight; D\NKC@(M
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); JB[~;nLlC
BITMAPINFOHEADER bih; )C]gld;8
bih.biBitCount=btm.bmBitsPixel; W+ko q*P
bih.biClrImportant=0; Y^EcQzLw
bih.biClrUsed=0; i5Yb`Z[Y
bih.biCompression=0; >_"an~Ss
bih.biHeight=btm.bmHeight; |Uh
bih.biPlanes=1; "]b<uV
bih.biSize=sizeof(BITMAPINFOHEADER); D!-g&HBTC
bih.biSizeImage=size; Ks`J([(W&
bih.biWidth=btm.bmWidth; F%D.zvKN
bih.biXPelsPerMeter=0; ")XHak.JX
bih.biYPelsPerMeter=0; GH:jH]u!V
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); .Od!0(0
static int filecount=0; 65$+{s
CString name; *VhL\IjN]
name.Format("pict%04d.bmp",filecount++); qm8B8&-
name=m_Path+name; JNXq.;:`Q
BITMAPFILEHEADER bfh; 2?ez,*-[
bfh.bfReserved1=bfh.bfReserved2=0; UIN<2F_
bfh.bfType=((WORD)('M'<< 8)|'B'); hAnPXiD
bfh.bfSize=54+size;
>rKIG~P_
bfh.bfOffBits=54; }.m<
CFile bf; =QiI :|eRA
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ mQ26K~
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); (b-MMr
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); c>:wd@w
bf.WriteHuge(lpData,size); 9} M?P
bf.Close(); ?:I* 8Fj
nCount++; hVAn>_(
} RF53J yt
GlobalFreePtr(lpData); "2$fi{9
if(nCount==1) _
y8Wn}19f
m_Number.Format("%d picture captured.",nCount); o5uph=Q{
else peuZ&yK+"
m_Number.Format("%d pictures captured.",nCount); Ep3N&Imp
UpdateData(FALSE); $OkBg0
} '3DXPR^B6
F {4bo$~>
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) PB`Y
g
{ xvl#w
if(pMsg -> message == WM_KEYDOWN) x'>9d
{ 4`]^@"{
if(pMsg -> wParam == VK_ESCAPE) ,|H
`e^
return TRUE; }1i`6`y1
if(pMsg -> wParam == VK_RETURN) VfC <WVYiZ
return TRUE; A:N|\Mv2b
} O6a<`]F
return CDialog::PreTranslateMessage(pMsg); _w+:Dv~*a
} ipgC RHE
j8{i#;s!"
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) qqr?!vem6
{ f:|1_ j
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ J1RJ*mo7,
SaveBmp(); J76kkW`5
return FALSE; cyv`B3}
} 4n g]\ituS
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ JZ*/,|1}EC
CMenu pop; BmMGx8P
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); u9GQU
CMenu*pMenu=pop.GetSubMenu(0); L<-_1!wh
pMenu->SetDefaultItem(ID_EXITICON); FvXZ<(A{
CPoint pt; Fk*7;OuZl
GetCursorPos(&pt); a /l)qB#
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); '(yAfL 9}
if(id==ID_EXITICON) g:D>.lKd
DeleteIcon(); -)]Yr #Q
else if(id==ID_EXIT) e~[/i\
OnCancel(); L Mbn
return FALSE; vkd.)x`J,
} 0gy/:T
LRESULT res= CDialog::WindowProc(message, wParam, lParam); =9["+;\e&
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) |w1Bq
AddIcon(); FR4QUk
return res; }`QUHIF
} JG!mc7
Cc' 37~6~P
void CCaptureDlg::AddIcon()
+wvWwie
{ G"U9E5O
NOTIFYICONDATA data; 7>Ouqxh21
data.cbSize=sizeof(NOTIFYICONDATA); K'Tm_"[u
CString tip; kmsb hYM)
tip.LoadString(IDS_ICONTIP); eH3JyzzP,
data.hIcon=GetIcon(0); &5spTMw8
data.hWnd=GetSafeHwnd(); ZQoU3AD;
strcpy(data.szTip,tip); AJ?r,!)
data.uCallbackMessage=IDM_SHELL; 6YLj^w] %
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; )72+\C[*~r
data.uID=98; YY((V@|K
Shell_NotifyIcon(NIM_ADD,&data); nE&