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:
8<PQ31
-v{LT=,O 一、实现方法
=.2)wA"e' NQIbav^5 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:
QW=
X#yrDO p"d_+ #pragma data_seg("shareddata")
h4N&Ybfo HHOOK hHook =NULL; //钩子句柄
~en' E UINT nHookCount =0; //挂接的程序数目
>\'gIIs static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
U)] }EgpF static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
z4wG]]Kh* static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
iE,/x^&,& static int KeyCount =0;
A1F!I4p5 static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
%&pd`A/ #pragma data_seg()
$<F9;Z I
T gzD"d 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
m\@ q2l- O[15xH, DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
LjPpnjU YWhp 4`m BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
'Oa(]Br[ cKey,UCHAR cMask)
I;+>@Cn(g< {
*s$:"g- BOOL bAdded=FALSE;
sPRo=LB for(int index=0;index<MAX_KEY;index++){
D),hSqJ" if(hCallWnd[index]==0){
tLzKM+Ct# hCallWnd[index]=hWnd;
=PIarUJ HotKey[index]=cKey;
}$@ EpM HotKeyMask[index]=cMask;
A}G>JL bAdded=TRUE;
>N-l2?rE KeyCount++;
".sRi break;
kS<9cy[O }
A+ LX37B }
h]DzX8r} return bAdded;
-~ H?R }
wPxtQv //删除热键
y)mtSA8 BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
9F2MCqvcm {
A?"/ >LM BOOL bRemoved=FALSE;
m4,inA:o for(int index=0;index<MAX_KEY;index++){
l\HtP7] if(hCallWnd[index]==hWnd){
1)J'
pDa if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
rnRWL4 hCallWnd[index]=NULL;
y;=/S?L.: HotKey[index]=0;
jh"YHe/X HotKeyMask[index]=0;
X.[8L^ldh bRemoved=TRUE;
'4,>#D8@O KeyCount--;
HiSNEp$-4$ break;
.05x=28n% }
aPm2\Sq$ }
O:jaA3 }
Jp-6]uW return bRemoved;
dyVfDF }
X{8g2](z. Pa-{bhllu) jO}<W 1qy DLL中的钩子函数如下:
][B>`gC- s_cur- LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
?<U">8cP {
/-&2>4I BOOL bProcessed=FALSE;
@waY+sqt= if(HC_ACTION==nCode)
S=qx,<J
39 {
[WO>}rGw4 if((lParam&0xc0000000)==0xc0000000){// 有键松开
V=)' CCi{ switch(wParam)
I\@`AU {
{QVs[
J1 case VK_MENU:
S3ZIC\2 MaskBits&=~ALTBIT;
ASUleOI79( break;
wW|[Im& case VK_CONTROL:
ZiC~8p_f MaskBits&=~CTRLBIT;
2<tU break;
tC\(H=ecP case VK_SHIFT:
!YIW8SP) MaskBits&=~SHIFTBIT;
H0-v^H>^ break;
$fG~;`T default: //judge the key and send message
4nKlW_{, break;
o "1X8v }
)wCV]TdF for(int index=0;index<MAX_KEY;index++){
NE+
;<mW if(hCallWnd[index]==NULL)
z4 KKt& continue;
5G l:jRu if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
V;uFYt;E {
k:#u%Z SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
.~fov8 bProcessed=TRUE;
B}^l'p_u }
Z4369 }
2X6L'!= }
'M,O(utGv else if((lParam&0xc000ffff)==1){ //有键按下
<ToRPx&E switch(wParam)
<\oD4EE_ {
X9;51JV case VK_MENU:
gbziEjRe MaskBits|=ALTBIT;
> *soc!# Y break;
[Nu py,v case VK_CONTROL:
gm=LM= MaskBits|=CTRLBIT;
G(gZL%M6 break;
;@H:+R+( case VK_SHIFT:
LL+PAvMg MaskBits|=SHIFTBIT;
UeU`U break;
f47dB_{5f. default: //judge the key and send message
R7/ET" break;
g9gi7.'0 }
remRmY? for(int index=0;index<MAX_KEY;index++){
^wz 2e if(hCallWnd[index]==NULL)
2k!4oVUN continue;
Sh\Jm*5 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
>J/8lS{# {
mb*|$ysPx SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
uMX\Y;N bProcessed=TRUE;
7'Gkip }
Z31a4O }
w#{S=^`} }
nhRpb9f`1@ if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
Kiq[PK for(int index=0;index<MAX_KEY;index++){
cFr`9A\-n if(hCallWnd[index]==NULL)
_kdt0Vr,L continue;
czT]XF if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
]nq/yAF% SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
:ka^ztXG //lParam的意义可看MSDN中WM_KEYDOWN部分
3<_=Vyf }
^u> fW["[ }
qK]Om6 a~ }
AA0\C_W0p return CallNextHookEx( hHook, nCode, wParam, lParam );
z@v2t>@3k }
VM<$!Aaz 3,1HD_ 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
r0q?e`nsA OM81$Xo= BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
iH8V] % BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
RaOLy \ ~L:H]_8F l 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:
=s&ycc;-5} Y6m:d&p=} LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
/xCX. C {
P DwBSj if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
jmF)iDvjuZ {
CIj7'V //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
]A:8x`z#F SaveBmp();
2YK2t<EO return FALSE;
+!)_[ zo }
'oF
XNO …… //其它处理及默认处理
}#6~/
W }
i':a|#e> 6N[X:F
3`, fWyXy%Qq 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。
h)Ol1[y` zBc |gx 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。
!o\e/HGc! !,R=6b$E5 二、编程步骤
vURgR Xn02p,, 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
6pbtE] -PTfsQk 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
Sl'{rol'
sY:=bU^P 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
~l]g4iEp b8!
4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
3Scc"9] slaH 2}$xR 5、 添加代码,编译运行程序。
cp6I]#X \-8aTF 三、程序代码
(wf3HEb_ j<)`|?@e( ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
sfk;c#K #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
c$x>6&&L #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
`eeA,K_ #if _MSC_VER > 1000
8`_tnARIX #pragma once
9I(00t_ #endif // _MSC_VER > 1000
49YN@PXC #ifndef __AFXWIN_H__
mJYD"WgY #error include 'stdafx.h' before including this file for PCH
A_crK`3 #endif
V3ExS1fNf #include "resource.h" // main symbols
<==6fc>s class CHookApp : public CWinApp
zbj V>5 {
nH B public:
?}#Iu-IA CHookApp();
y-{?0mLq // Overrides
?in)kL // ClassWizard generated virtual function overrides
CZf38$6 X //{{AFX_VIRTUAL(CHookApp)
Z1.v%"/( public:
}
L_Zmi$ virtual BOOL InitInstance();
EI496bsRHm virtual int ExitInstance();
jZ''0Lclpc //}}AFX_VIRTUAL
;,s9jw //{{AFX_MSG(CHookApp)
hii#kB2 // NOTE - the ClassWizard will add and remove member functions here.
C7K]c4T // DO NOT EDIT what you see in these blocks of generated code !
Mbn;~tY> //}}AFX_MSG
-q\Rbb5M DECLARE_MESSAGE_MAP()
g.\%jDM };
-d^'-s LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
N_/+B]r }T BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
{nw.bKq7 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
$W%-Mm BOOL InitHotkey();
W}#n.c4+ BOOL UnInit();
w F3 MzN=% #endif
'4CD
} KDb`g}1Q //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
rQosI:$ #include "stdafx.h"
1iqgVby #include "hook.h"
]CPF7Hf #include <windowsx.h>
y+KAL{AGK #ifdef _DEBUG
uW2 q\ #define new DEBUG_NEW
yCN?kHG #undef THIS_FILE
^?*<.rsG static char THIS_FILE[] = __FILE__;
1 J}ML}h) #endif
i! gS]?*DH #define MAX_KEY 100
5vJxhBm/ #define CTRLBIT 0x04
HiBI0)N} #define ALTBIT 0x02
F@mxd #define SHIFTBIT 0x01
L|B! ]} #pragma data_seg("shareddata")
'.C#"nY>1 HHOOK hHook =NULL;
UuC-R) UINT nHookCount =0;
VfUHqdg- static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
3gnO)"$ static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
RC?vU static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
nLx|$=W static int KeyCount =0;
xsiJI1/68 static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
Z{gm4YV #pragma data_seg()
;#9ioGx HINSTANCE hins;
zQ#*O'-n void VerifyWindow();
pC #LQ BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
|(AFU3~ //{{AFX_MSG_MAP(CHookApp)
O<E8,MCA[a // NOTE - the ClassWizard will add and remove mapping macros here.
%k~ezn // DO NOT EDIT what you see in these blocks of generated code!
+bT[lJ2O>G //}}AFX_MSG_MAP
X?XB!D7[ END_MESSAGE_MAP()
Cc;8+Z=a?G X yiaRW CHookApp::CHookApp()
E^Q
J50 {
9Q!Z9n"8~) // TODO: add construction code here,
tzv4uD] // Place all significant initialization in InitInstance
@DF7j|]tV }
vn!3Z! dm( jw`05rw: CHookApp theApp;
DEbMb6)U LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
PQa0m)H@ {
tY:
Nq*@
BOOL bProcessed=FALSE;
sN2m?`?"G if(HC_ACTION==nCode)
_,IjB/PR( {
C!ch
!E# if((lParam&0xc0000000)==0xc0000000){// Key up
}r@yBUW switch(wParam)
r-yUWIr
S {
tP"6H-)X& case VK_MENU:
w`=O
'0d MaskBits&=~ALTBIT;
P$Oj3HD LM break;
u0A$}r$L case VK_CONTROL:
2dcvB]T! MaskBits&=~CTRLBIT;
.FC+ break;
ifu!6_b. case VK_SHIFT:
!zllvtK4 MaskBits&=~SHIFTBIT;
,aa
4Kh break;
?~4x/d% default: //judge the key and send message
;8dffsyq break;
;Rpib[m }
'5LdiSk for(int index=0;index<MAX_KEY;index++){
2ij&Db/ if(hCallWnd[index]==NULL)
Dh}(B$~Oz+ continue;
R PoBF~> if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
j>B* 8*Ss {
0{vH .b
@ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
~KYzEqy bProcessed=TRUE;
wc.=`Me }
iy_Y!wZ{ }
'&dT }
"j8)l4} else if((lParam&0xc000ffff)==1){ //Key down
,B_c switch(wParam)
OM{^F=Ap {
n:2._s T case VK_MENU:
{L~dER MaskBits|=ALTBIT;
"|[9 Q? break;
P/.<sr=2 case VK_CONTROL:
5bAdF'~ MaskBits|=CTRLBIT;
%y|pVN!U break;
<U1T_fiBoc case VK_SHIFT:
1dw{:X=j MaskBits|=SHIFTBIT;
mC$y*G break;
y_w
<3 default: //judge the key and send message
.xWaS8f break;
K3M.ZRh\;` }
lWtfcU?S[ for(int index=0;index<MAX_KEY;index++)
k sXQ}BE {
#QIY+muN if(hCallWnd[index]==NULL)
4(LLRzzW continue;
h`dQOH# if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Bv!{V)$ {
Wbei{3~$Y" SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
y_}vVHT, bProcessed=TRUE;
1[8^JVC>6 }
i?;#ZNh }
s)`(@"{ }
bxtH`^ if(!bProcessed){
u}|v;:|j for(int index=0;index<MAX_KEY;index++){
#v<`|_ if(hCallWnd[index]==NULL)
5RFro^S9E continue;
o{`x: if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
yF?O+9R
A SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
"a(4]) }
Z,e|L4& }
R54ae:8 }
]& ckq return CallNextHookEx( hHook, nCode, wParam, lParam );
l nHY?y7{ }
peBHZJ``RX >Zs! BOOL InitHotkey()
;Vs2e {
,;Wm>V)o if(hHook!=NULL){
`bfUP s nHookCount++;
wjwCs` return TRUE;
hTzj{}w }
R[j? \# else
(${ #l hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
&K[sb% if(hHook!=NULL)
#~)A#~4O nHookCount++;
_.Hj:nFHz return (hHook!=NULL);
`;+x\0@< }
kSzap+ nB? BOOL UnInit()
R20 .dA_N {
G3io!XM)D if(nHookCount>1){
/MY's&D( nHookCount--;
$"W[e"Q return TRUE;
{$hWz ( }
N6"sXwm BOOL unhooked = UnhookWindowsHookEx(hHook);
zGR,}v%% if(unhooked==TRUE){
-dA9x~o nHookCount=0;
">CRFee0 hHook=NULL;
eyJWFJh }
W&)f#/M8 return unhooked;
jVd`J }
"Gp Tmu? w01[oU$x= BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Tp?IK_ {
`gx\m=xG BOOL bAdded=FALSE;
$q:l \ for(int index=0;index<MAX_KEY;index++){
*3`R W<Z if(hCallWnd[index]==0){
AXHY$f| hCallWnd[index]=hWnd;
PL{lYexJ HotKey[index]=cKey;
?D _4KFr HotKeyMask[index]=cMask;
#%@bZ f
bAdded=TRUE;
?.Vuet KeyCount++;
Lw,}wM5X break;
{l,&F+W$C }
LYECX }
v#&;z_I+ return bAdded;
Y4 z }
ElUFne= qsW&kW~ BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
~deS* {
syW[uXNLZ BOOL bRemoved=FALSE;
x5uz$g for(int index=0;index<MAX_KEY;index++){
^UJIDg7zS if(hCallWnd[index]==hWnd){
xOKJOl if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
Z9$pY=8^? hCallWnd[index]=NULL;
@2h hB W HotKey[index]=0;
W9Azp8)p] HotKeyMask[index]=0;
lf>d{zd5 bRemoved=TRUE;
9e
K~g0m KeyCount--;
aOGoJCt
C break;
>W] Wc4\ }
F\xIVY }
S1Y,5,} }
H 4ELIF#@ return bRemoved;
jyW={%& }
j!i*& 8xAI n>,_ void VerifyWindow()
8|)!E`TKSV {
g$Y]{VM.J for(int i=0;i<MAX_KEY;i++){
:?zq! if(hCallWnd
!=NULL){ G{fPQ=
if(!IsWindow(hCallWnd)){ ]vz6DJs
hCallWnd=NULL; nc:/GxP
HotKey=0; g 4=1['wW
HotKeyMask=0; S?JCi=
KeyCount--; KPO w
} /kG?I_z
} -c?x5/@3
} N.q~\sF^
} ?wG
i
/[{xRXiR
BOOL CHookApp::InitInstance() ,Ohhl`q(
{ `)y
;7%-
AFX_MANAGE_STATE(AfxGetStaticModuleState()); V[kJ;YLPN
hins=AfxGetInstanceHandle(); @NA+Ma{N
InitHotkey(); vc|tp_M67
return CWinApp::InitInstance(); W vB]Rs
} g]L8Jli
}C_g;7*
int CHookApp::ExitInstance() 1q!k#Cliu
{ 1$03:ve1
VerifyWindow(); 5*Zz_ .
UnInit(); ^2$b8]q
return CWinApp::ExitInstance(); )yb~ kbe
} 59D'*!l-
!Z2h?..O
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file Sy <E@1
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) ty['yV-;a
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ h SS9mQ
#if _MSC_VER > 1000 & n@hD7=(
#pragma once .jqil0#)Y"
#endif // _MSC_VER > 1000 ]I,&Bme
/r'Fq
=z
class CCaptureDlg : public CDialog >$rH,Er
{ c!6v-2ykv
// Construction ]lfufjj
public: 7=fNvES2
BOOL bTray; xI?'Nh
BOOL bRegistered; L@[}sMdq(
BOOL RegisterHotkey(); V)~b+D
UCHAR cKey; Z1q<) O1QX
UCHAR cMask; !%t@wQ]\hG
void DeleteIcon(); `;}qjm0a
void AddIcon(); %IVM1
UINT nCount; Xk%eU>d
void SaveBmp(); vo
}4N[]Sb
CCaptureDlg(CWnd* pParent = NULL); // standard constructor Kn$E{ F\
// Dialog Data <`SA>P
//{{AFX_DATA(CCaptureDlg) 83V\O_7j
enum { IDD = IDD_CAPTURE_DIALOG }; #pAN
CComboBox m_Key; }|Q\@3&
BOOL m_bControl; kK}?NKqT
BOOL m_bAlt; B^TgEr
BOOL m_bShift; I/St=-;
CString m_Path; &?QKWxN
CString m_Number; RjUrpS[I
//}}AFX_DATA h~sTi
// ClassWizard generated virtual function overrides J#wf`VR%
//{{AFX_VIRTUAL(CCaptureDlg) bz nMD
public: \Kui`X
virtual BOOL PreTranslateMessage(MSG* pMsg); nnRb
protected: X{cB%to
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support *^[6uaa
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); ckFPx l.
//}}AFX_VIRTUAL x4kQG e(
// Implementation ]lGkZyUhI
protected: zwQ#Yvd
HICON m_hIcon; U+B{\38
// Generated message map functions X=?9-z]
QO
//{{AFX_MSG(CCaptureDlg) u8?$W%eW
virtual BOOL OnInitDialog(); g ;
-3
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); Jb> X$|N'%
afx_msg void OnPaint(); Xbx=h^S
afx_msg HCURSOR OnQueryDragIcon(); mvpcRe
<
virtual void OnCancel(); Fg
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afx_msg void OnAbout(); u{uqK7]+
afx_msg void OnBrowse(); \25EI]
afx_msg void OnChange(); :&&s*_
//}}AFX_MSG 5,4" CF$
DECLARE_MESSAGE_MAP() J(]b1e
}; v\9f 8|K
#endif `Zmdlp@
eW<NDI&b
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file )xU+M{p-os
#include "stdafx.h" 6X'0 T}
#include "Capture.h" k fY;
#include "CaptureDlg.h" Xajt][
#include <windowsx.h> |ul{d|
#pragma comment(lib,"hook.lib") % mPv1$FH
#ifdef _DEBUG fA1{-JzV<4
#define new DEBUG_NEW VPO~veQ
#undef THIS_FILE PQ_A^ 95
static char THIS_FILE[] = __FILE__; AwuhFPG
#endif w#BT/6W&G
#define IDM_SHELL WM_USER+1 ODRy
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); S/eplz;
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); -0`n(`2
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; er
BerbEEH
class CAboutDlg : public CDialog Yevd h<
{ 8.wtv5eZ
public: "-:g.x*d
CAboutDlg(); j)ln"u0R^B
// Dialog Data "tJ[M
//{{AFX_DATA(CAboutDlg) t}}Ti$$>
enum { IDD = IDD_ABOUTBOX }; WyB^b-QmDh
//}}AFX_DATA 73u97oe>1
// ClassWizard generated virtual function overrides mcQ
A'
//{{AFX_VIRTUAL(CAboutDlg) pR2U&OA
protected: wLI1qoDM
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support SCn)j:gH;
//}}AFX_VIRTUAL NuF?:L[
// Implementation 7nxH>.,Q>
protected: -e"kJd&V
//{{AFX_MSG(CAboutDlg) p/LV^TQ
//}}AFX_MSG GHi'ek <?^
DECLARE_MESSAGE_MAP() @+Nf@LJ
}; fY=:geB
hc]p^/H
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) T_wh)B4xW
{ #Ddo` >`&
//{{AFX_DATA_INIT(CAboutDlg) /Trbr]lWy
//}}AFX_DATA_INIT 7&jq =
} 3 TV4|&W;
* _usVg
void CAboutDlg::DoDataExchange(CDataExchange* pDX) x<w-j[{k_K
{ 6e.l#
c!1}
CDialog::DoDataExchange(pDX); 7z\#"~(.
//{{AFX_DATA_MAP(CAboutDlg) |G/)<1P
//}}AFX_DATA_MAP mss.\
} =?]S8cth
][//G|9
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) hH05p!2
//{{AFX_MSG_MAP(CAboutDlg) &Vpr[S@:{
// No message handlers m#_M"B.cm
//}}AFX_MSG_MAP L"c.15\
END_MESSAGE_MAP() e^;:iJS
b
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CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) 1jBIi
: CDialog(CCaptureDlg::IDD, pParent) Xyz/CZPi
{ Zv
mkb%8
//{{AFX_DATA_INIT(CCaptureDlg) ;5T}@4m|r
m_bControl = FALSE; yP` K [/
m_bAlt = FALSE; rkdA4'66w
m_bShift = FALSE; M djxTr^
m_Path = _T("c:\\"); N<KsQsy=
m_Number = _T("0 picture captured."); `|92!Ej
nCount=0;
noB8*n0
bRegistered=FALSE; !"E/6z2&(k
bTray=FALSE; 9G7Br s:
//}}AFX_DATA_INIT Bz%wV-
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m9c`"!
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); $Dv5TUKw
} 9`H4"H>yG
tblduiN
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) ]70ZerQ~L
{ &VCg`r-{~
CDialog::DoDataExchange(pDX); EKQ>hww8
//{{AFX_DATA_MAP(CCaptureDlg) )@tHS-Jf
DDX_Control(pDX, IDC_KEY, m_Key); F]<2nb7
DDX_Check(pDX, IDC_CONTROL, m_bControl); y>T>
DDX_Check(pDX, IDC_ALT, m_bAlt); IQd~`
G
DDX_Check(pDX, IDC_SHIFT, m_bShift); Tgla_sMb
DDX_Text(pDX, IDC_PATH, m_Path); MU '-
DDX_Text(pDX, IDC_NUMBER, m_Number); ,@M<O!%Cs
//}}AFX_DATA_MAP QWt3KW8)
} Azr|cKu]
d}|z+D
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) r AqS;@]0
//{{AFX_MSG_MAP(CCaptureDlg) QaA?UzB
ON_WM_SYSCOMMAND() 5xj8^W^G9
ON_WM_PAINT() "So"oT1
ON_WM_QUERYDRAGICON() (?GW/pLK]
ON_BN_CLICKED(ID_ABOUT, OnAbout) 1BP/,d |+
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) sS4V(:3s
ON_BN_CLICKED(ID_CHANGE, OnChange) t-}IKrbv
//}}AFX_MSG_MAP ![I|hB
END_MESSAGE_MAP() Dwr" -
OP=-fX|*Q
BOOL CCaptureDlg::OnInitDialog() i;Kax4k
{ '9Q#%E!*
CDialog::OnInitDialog(); =E(ed,gH8
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); oS Ybx:2wo
ASSERT(IDM_ABOUTBOX < 0xF000); JIYzk]Tj
CMenu* pSysMenu = GetSystemMenu(FALSE); 68<W6z
if (pSysMenu != NULL) _sL;E<)y(
{ U(OkTJxv+
CString strAboutMenu; 7@k3-?q
strAboutMenu.LoadString(IDS_ABOUTBOX); G-:7,9
if (!strAboutMenu.IsEmpty()) 7>0/$i#'Vl
{ n`jG[{3t&
pSysMenu->AppendMenu(MF_SEPARATOR); 6T_Ya)
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); cc1M9kVi
} 0$=U\[og
} ]HXHz(?;F
SetIcon(m_hIcon, TRUE); // Set big icon Oc.8d<
SetIcon(m_hIcon, FALSE); // Set small icon FGm!|iI
m_Key.SetCurSel(0); UV{})T*s
RegisterHotkey(); )
jM-5}"
CMenu* pMenu=GetSystemMenu(FALSE); 6iHY{WcDj
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); .*W7Z8!e
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); Cy5iEI#
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); {utnbtmu
return TRUE; // return TRUE unless you set the focus to a control WyM2h
} ZnuRy:
d6??OO=~>M
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) A9J{>f
{ F,K))325
if ((nID & 0xFFF0) == IDM_ABOUTBOX) q['3M<q
{ }5$le]
CAboutDlg dlgAbout; Yn?Xo_Y
dlgAbout.DoModal(); U.I7p
} 4v{Ye,2
else _)YB*z5
{ Tfv@oPu
CDialog::OnSysCommand(nID, lParam); &%(SkL_]
} *%atE
} l0ZK)
L`9.Gf
void CCaptureDlg::OnPaint() E7w^A
{ y4=T0[
V
if (IsIconic()) F8/n;
{ Qs8yJH`v
CPaintDC dc(this); // device context for painting @$%.iQ7A;
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); yOP$~L#TWs
// Center icon in client rectangle Es\J%*\u
int cxIcon = GetSystemMetrics(SM_CXICON); DPmY_[OAE
int cyIcon = GetSystemMetrics(SM_CYICON); .vi0DuD6
CRect rect; ^4Se=Hr
z2
GetClientRect(&rect); qa8?bNd'f
int x = (rect.Width() - cxIcon + 1) / 2; fgF@ x
int y = (rect.Height() - cyIcon + 1) / 2; /V]i3ac
// Draw the icon p=i6~
dc.DrawIcon(x, y, m_hIcon); Xw|-v$'y
} _,e4?grP#
else
Z}SqiT
{ o,0
Z^"|
CDialog::OnPaint(); _oefp*iWS
} G_ ~qk/7mF
} ]'hel#L;l
f%[xl6VE;
HCURSOR CCaptureDlg::OnQueryDragIcon() n 1^h;2gz
{ BXz g33
return (HCURSOR) m_hIcon; f3.oc9G
} '9&@?P;
<'hoN/g
void CCaptureDlg::OnCancel() P^lzbWj^
{ Li 9$N"2
if(bTray) Tn\{*A
DeleteIcon(); #%#N.tB5
CDialog::OnCancel(); I\[z(CHg@
} ?UeV5<TewS
i`iR7UmHeR
void CCaptureDlg::OnAbout() q,;wD1_wG
{ |}X[Yg=FG
CAboutDlg dlg; ;.R)
uCd{=
dlg.DoModal(); Nm%#rZrN~Q
} Uw3wR!:
/pLf?m9
void CCaptureDlg::OnBrowse() oBo |eRIt|
{ x7jFYC
CString str; vuJEPn%
BROWSEINFO bi; AOV{@b(
char name[MAX_PATH]; _?I*::
I
ZeroMemory(&bi,sizeof(BROWSEINFO)); 34_
V&8
bi.hwndOwner=GetSafeHwnd(); 7lwFxP5QT
bi.pszDisplayName=name; ) <w`:wD
bi.lpszTitle="Select folder"; U5?QneK
bi.ulFlags=BIF_RETURNONLYFSDIRS; t23W=U
LPITEMIDLIST idl=SHBrowseForFolder(&bi); ^L.'At
if(idl==NULL) cveQ6
-`K
return; *Aug7
HlS
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); p^ OHLT
str.ReleaseBuffer();
ZcTjOy?
m_Path=str; Ahr
if(str.GetAt(str.GetLength()-1)!='\\') hb}Qt Q
m_Path+="\\"; - _%~b
UpdateData(FALSE); 'jye*
} "Rtt~["%
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void CCaptureDlg::SaveBmp() Ufor>
{ t"MrrK>T
CDC dc; P1Iy>%3
dc.CreateDC("DISPLAY",NULL,NULL,NULL); 'Ddzlip
CBitmap bm; w:=:D=xH2
int Width=GetSystemMetrics(SM_CXSCREEN); 6
Pdao{P
int Height=GetSystemMetrics(SM_CYSCREEN); q{f (T\
bm.CreateCompatibleBitmap(&dc,Width,Height); rD !GEU
CDC tdc; 2{oQ
tdc.CreateCompatibleDC(&dc); oMoco tQ;$
CBitmap*pOld=tdc.SelectObject(&bm); O]!o|w(
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); 'UuHyC2Ha3
tdc.SelectObject(pOld); IQ
xi@7%&
BITMAP btm; D)Jac@,0
bm.GetBitmap(&btm); <P]%{msGH
DWORD size=btm.bmWidthBytes*btm.bmHeight; O+[s4]
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); 4#ikdjB;
BITMAPINFOHEADER bih; }` <DKO/
bih.biBitCount=btm.bmBitsPixel; )YwLj&e4tf
bih.biClrImportant=0; oP:R1<
bih.biClrUsed=0; QDb8W*&<
bih.biCompression=0; ?_T[]I'
bih.biHeight=btm.bmHeight; g+?2@L$L
bih.biPlanes=1; \,lIPA/L
bih.biSize=sizeof(BITMAPINFOHEADER); ;(K"w*
bih.biSizeImage=size; s={IKU&m[
bih.biWidth=btm.bmWidth; e:T9f('
bih.biXPelsPerMeter=0; GSfU*@L3
bih.biYPelsPerMeter=0; >CHb;*U
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); T?tZ?!6
static int filecount=0; la^K|!|
CString name; _({wJ$aYC
name.Format("pict%04d.bmp",filecount++); # 00?]6`z
name=m_Path+name; {V8uk$
BITMAPFILEHEADER bfh; u?'J1\z
bfh.bfReserved1=bfh.bfReserved2=0; p$*P@qm
bfh.bfType=((WORD)('M'<< 8)|'B'); 4jjo%N
bfh.bfSize=54+size; }I18|=TB
bfh.bfOffBits=54; J(P'!#z^
CFile bf; DH4IF i>
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ s; sr(34
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); 15Jc PDV
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); >?ec"P%vS/
bf.WriteHuge(lpData,size); J'k^(ZZ
bf.Close(); 8VC%4+.FF
nCount++; tOo\s&j
} ogJ';i/o
GlobalFreePtr(lpData); f=7[GZoDn
if(nCount==1) (io[O?te
m_Number.Format("%d picture captured.",nCount); 4C*0MV
else ,zZ@QW5
m_Number.Format("%d pictures captured.",nCount); ^a1k"|E?f
UpdateData(FALSE); z2#k/3%o=
} ,&Vir)S
kN 0N18E
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) jc,Qg2
{ mSO7 r F
if(pMsg -> message == WM_KEYDOWN) sG^{
cn
{ .;(a;f+{;
if(pMsg -> wParam == VK_ESCAPE) 19%zcYTe
return TRUE; C3
BoH&
if(pMsg -> wParam == VK_RETURN) d vo|9 >
return TRUE; JcfGe4
} e-VGJxR
return CDialog::PreTranslateMessage(pMsg); 7=&+0@R#/d
} ;*=7>"o'`
v`p@djM
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) +Z]}ce
u"
{ 4i<GqG
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ #wkSru&LS
SaveBmp(); ZQ' |B
return FALSE; hb9HVj
} 0vMKyT3 c
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ vTL/% SJ8
CMenu pop; `_BmVms
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); BbPRPkV
CMenu*pMenu=pop.GetSubMenu(0); [e{D
pMenu->SetDefaultItem(ID_EXITICON); sN) xNz
CPoint pt; en6;I[\
GetCursorPos(&pt); :Smyk.B2!
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); Q9;VSF)
if(id==ID_EXITICON) *Y!RU{w+Z
DeleteIcon(); b~<:k\EE
else if(id==ID_EXIT) f>&*%[fw
OnCancel(); 6^2='y~e
return FALSE; %:sP #BQM
} "_=t1UE
LRESULT res= CDialog::WindowProc(message, wParam, lParam); bXqTc2>=
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) !\'HKk~V
AddIcon(); Lg7dJnf
return res; p1T0FBV
L
} %MCS_'N
J
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void CCaptureDlg::AddIcon() >\3N#S"PF
{ j9-.bGtm?.
NOTIFYICONDATA data; BA8!NR|
data.cbSize=sizeof(NOTIFYICONDATA); IIF <Zkpb
CString tip; pOj8-rr
tip.LoadString(IDS_ICONTIP); CBz=-Xr
data.hIcon=GetIcon(0); S,a:H*Hf
data.hWnd=GetSafeHwnd(); /"^XrVi-
strcpy(data.szTip,tip); {s6hi#R>
data.uCallbackMessage=IDM_SHELL; }%^ 3
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; c6iFha;db
data.uID=98; ^g.HJQ'vF
Shell_NotifyIcon(NIM_ADD,&data); P0k.\ 8qz
ShowWindow(SW_HIDE); Os!x<r|r
bTray=TRUE; 1@F>E;YjL=
} X?(R!=a
"I @akM$x
void CCaptureDlg::DeleteIcon() F;Q'R|HQ
{ u(PUbxJ
V
NOTIFYICONDATA data; xlh<}Vtp
data.cbSize=sizeof(NOTIFYICONDATA); K~fWZT3]
data.hWnd=GetSafeHwnd(); xU(b:D Z
data.uID=98; st >%U9
Shell_NotifyIcon(NIM_DELETE,&data); \tP*Pz
ShowWindow(SW_SHOW);
^b^buCYw
SetForegroundWindow(); n]>L"D,
ShowWindow(SW_SHOWNORMAL); |3hNTH?
bTray=FALSE; Ix~rBD9
} mcs!A/]<
m\_v{1g
void CCaptureDlg::OnChange() 57_AJT hR
{ Iv u'0vF
RegisterHotkey(); Wq?vAnLbk
} <oSx'_dc
^+kymZ
BOOL CCaptureDlg::RegisterHotkey() -U;=]o1
{ &z>iqm"Ww
UpdateData(); gf^y3F[\
UCHAR mask=0; "Id1H
UCHAR key=0; ke)<E98DC
if(m_bControl) .k%/JF91n
mask|=4; o@L
'|#e
if(m_bAlt) t"5ZYa
mask|=2; @ *5+ZAF
if(m_bShift) |EY1$qItid
mask|=1; 14(ct
key=Key_Table[m_Key.GetCurSel()]; } V"A;5j`
if(bRegistered){ OU*skc>
DeleteHotkey(GetSafeHwnd(),cKey,cMask); c @KNyBy2
bRegistered=FALSE; f?(g5o*2
} z+^9)wg9
cMask=mask; J?1Eh14KZ
cKey=key; CX;
m8
bRegistered=AddHotkey(GetSafeHwnd(),cKey,cMask); &