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:
4<>:]
P87Fg 一、实现方法
+VCo=oA D>^ix[:J 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:
Sqt"G6< JNg5?V;.U #pragma data_seg("shareddata")
d7zE8)D U7 HHOOK hHook =NULL; //钩子句柄
\4X{\p< UINT nHookCount =0; //挂接的程序数目
Ph_m'fbf static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
~{!!=@6 static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
DL!s)5!M static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
LZ]pyoi static int KeyCount =0;
hQxe0Pdt static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
b!P;xLcb #pragma data_seg()
J+|V[E<x -dN;\x 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。
eh(]'%![/ _[tBLGXD 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:
_ILOA]ga# SO<K#HfE$? BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
Lcb59Cs6e cKey,UCHAR cMask)
L6#d {
UVU*5U~ BOOL bAdded=FALSE;
vt=S0X^$yc for(int index=0;index<MAX_KEY;index++){
e|9Bzli{ if(hCallWnd[index]==0){
DNO%J^ hCallWnd[index]=hWnd;
ebVfny$D HotKey[index]=cKey;
*Yjs$'_2 HotKeyMask[index]=cMask;
[B<{3*R_ bAdded=TRUE;
]F-6KeBc KeyCount++;
9'aR-tFun; break;
yiA\$mtO }
En_8H[<% }
Z|wDM^Lf return bAdded;
IT33E%G }
FKm2slzb //删除热键
"t`e68{Ls BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
'(>N
gd[ {
?`}U|]c BOOL bRemoved=FALSE;
t\0JNi$2 for(int index=0;index<MAX_KEY;index++){
9:~^KQ{? if(hCallWnd[index]==hWnd){
jzp%.4/j if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
hlEvL hCallWnd[index]=NULL;
htlWC>* HotKey[index]=0;
'z5 ;o:T HotKeyMask[index]=0;
>S/>2e: bRemoved=TRUE;
Bqgw%_ KeyCount--;
g8yZc}4 break;
\MPy"uC }
Ms3/P| {"p }
]F#kM21 1 }
xB[#
a* return bRemoved;
.{>-.& }
<#`L&w. gE(03SX K)Ka"H DLL中的钩子函数如下:
%LmB`DqZ vM8]fSc LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
/n=/WGl {
}]@
"t)" BOOL bProcessed=FALSE;
jqmP^ZS if(HC_ACTION==nCode)
?yh.*,dgi {
YJ`>&AJ if((lParam&0xc0000000)==0xc0000000){// 有键松开
|Dli6KN switch(wParam)
eU*hqy?0 {
h2K case VK_MENU:
l6O(+*6Us MaskBits&=~ALTBIT;
#=m5*}= break;
hNfL /^w case VK_CONTROL:
n$iz MaskBits&=~CTRLBIT;
;pq4El_ break;
(Zkt2[E` case VK_SHIFT:
Yr@ @ty MaskBits&=~SHIFTBIT;
.kV/0!q? break;
g5`YUr+3?h default: //judge the key and send message
WOoVVjMM break;
W=+ag<@ }
SM?<woY=* for(int index=0;index<MAX_KEY;index++){
d7Z\ if(hCallWnd[index]==NULL)
%/p5C continue;
1+zax*gO- if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
wvY$s; {
@m4d 4K@ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
nMqU6X>P! bProcessed=TRUE;
e9nuQ\= }
$:/1U$ }
S7]cF5N }
0jMrL\>C else if((lParam&0xc000ffff)==1){ //有键按下
Ft7l / switch(wParam)
4BX*-t {
IFe[3mB5 case VK_MENU:
,0O!w>u_]J MaskBits|=ALTBIT;
lU3wIB break;
O,PHAwVG%L case VK_CONTROL:
Q}]un]]Zt MaskBits|=CTRLBIT;
4}`MV . break;
eyOAG4QTV case VK_SHIFT:
2t%)d9r32 MaskBits|=SHIFTBIT;
Zf! 7pM break;
pw
.(6" default: //judge the key and send message
A2 rRYzN; break;
B _ >|Mo/ }
Rp1 OC for(int index=0;index<MAX_KEY;index++){
_GS2&|7` if(hCallWnd[index]==NULL)
H.e@w3+h continue;
1k`!w} if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
?*HlAVDcFT {
Oi RqqD SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
BL7%MvDQ bProcessed=TRUE;
Vj1AW< }
?0F#\0 }
C" {j0X` }
x.aUuC,$x if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
)yJjJ:re for(int index=0;index<MAX_KEY;index++){
l}{O if(hCallWnd[index]==NULL)
(s~hh continue;
snrfHDhUw if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
1'iRx, SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
G(L*8U<UG //lParam的意义可看MSDN中WM_KEYDOWN部分
Al?XJ C B@ }
ZWv$K0agu }
1=>$c }
UA^E^$f: return CallNextHookEx( hHook, nCode, wParam, lParam );
7G(X:! }
+!rK4[W' Nz8iU@!a 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:
[(1O_X(M ;:OJQFu%4 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
x:(e:I8x( BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
gDH x+"? *|'k 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:
9%8T09I! {u7E )Fdl
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
p[RD[b {
B{Rig5Sc if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
B}p/ ,4x6 {
V&G_Bu~ //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
Eyuc~[ SaveBmp();
,QDq+93 return FALSE;
H74hv`G9 }
0x84 Ah) …… //其它处理及默认处理
({)_[dJ' }
q
/#O :Q $O[ut. M30_b8[Y_ 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。
w
^A0l.{ M9M EQK 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。
3 Xy>kG} @{j-B
IRZ0 二、编程步骤
E3'6lv' aw~OvnX E 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";
p47~vgJN fK[9<"PC0 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
kG{(Qi k[][Md2Vh 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;
T]+*}C dJkTHmw 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;
:=* -x V[%r5!83H 5、 添加代码,编译运行程序。
3.>jagu zMDR1/|D 三、程序代码
tW(E\#!|p< Z"P{/~HG ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
cq/)Yff@: #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
v<O\ l~S #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
>k:)'* #if _MSC_VER > 1000
wH<S0vl #pragma once
n_5g:`Y #endif // _MSC_VER > 1000
t.m
$|M> #ifndef __AFXWIN_H__
ivt\|
> #error include 'stdafx.h' before including this file for PCH
Ih{~?(V$ #endif
2)G ZU #include "resource.h" // main symbols
X;- ,3dy class CHookApp : public CWinApp
0KEytm] {
q.#aeqKBP public:
i
cZQv] CHookApp();
,L`qV // Overrides
c$p1Sovw // ClassWizard generated virtual function overrides
9"/{gf3D //{{AFX_VIRTUAL(CHookApp)
H94$Xi"Bd public:
c45Mv_ virtual BOOL InitInstance();
luV%_[F virtual int ExitInstance();
Odagaca //}}AFX_VIRTUAL
[QeKT8 //{{AFX_MSG(CHookApp)
:D&QGw(n // NOTE - the ClassWizard will add and remove member functions here.
^ K/B[8 // DO NOT EDIT what you see in these blocks of generated code !
]RxNSr0e //}}AFX_MSG
#Qkl| h DECLARE_MESSAGE_MAP()
CnAh Ef)b };
5e/%Tue. LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
L/V3sSt BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
EQg
6*V BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
o#;w>- BOOL InitHotkey();
1W5YS +pf BOOL UnInit();
-5.>9+W8I #endif
j&8U:Q,
_,vJ0{* //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
5"{wnnY%K} #include "stdafx.h"
t#kmtJC #include "hook.h"
kQ|}"Tw7 #include <windowsx.h>
|s|RJA1 #ifdef _DEBUG
X~lOFH;}q #define new DEBUG_NEW
guBOR0x` #undef THIS_FILE
MTr _8tI static char THIS_FILE[] = __FILE__;
Rd 2* #endif
m"u 9AOH k #define MAX_KEY 100
h4sEH #define CTRLBIT 0x04
xU)~)eK #define ALTBIT 0x02
qbB.Z#w #define SHIFTBIT 0x01
>GqIpfn #pragma data_seg("shareddata")
9;.dNdg> HHOOK hHook =NULL;
x<imMJ UINT nHookCount =0;
d+=;sJ static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
i^j{l_-JE static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
W&GDE static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
x'}{^'}/ static int KeyCount =0;
\,~gA
static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
0\u_\%[ #pragma data_seg()
WpRi+NC}ln HINSTANCE hins;
|U12fuQ void VerifyWindow();
A*W QdY BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
IhUuL0 //{{AFX_MSG_MAP(CHookApp)
UGl}=hwKkG // NOTE - the ClassWizard will add and remove mapping macros here.
E|#'u^`yv // DO NOT EDIT what you see in these blocks of generated code!
'tF<7\! //}}AFX_MSG_MAP
!! #\P7P END_MESSAGE_MAP()
8iq~ha$]| l@##
Ex9 CHookApp::CHookApp()
nLYyS# {
=n%?oLg^ // TODO: add construction code here,
^fH]Rlx // Place all significant initialization in InitInstance
]kc]YO7i%R }
P%.9 g V5R``Tp CHookApp theApp;
\\)3:1X LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
R(ay&f%E {
2N `Vx3 BOOL bProcessed=FALSE;
aNfgSo05@n if(HC_ACTION==nCode)
8>
Gp #T {
M1VRc[
RRo if((lParam&0xc0000000)==0xc0000000){// Key up
s|dL.@0,L switch(wParam)
AQ@A$ {
VM|8HR7U case VK_MENU:
rY88xh^ MaskBits&=~ALTBIT;
julAN$2 break;
?DM-C5$ case VK_CONTROL:
dDAdZxd MaskBits&=~CTRLBIT;
<[b\V+M break;
+HUI1@ql case VK_SHIFT:
0s=GM|y MaskBits&=~SHIFTBIT;
wMei`svY break;
Dr<% Lr default: //judge the key and send message
LTG/gif[u break;
H~&9xtuHN }
BYP,}yzA for(int index=0;index<MAX_KEY;index++){
!dGy"-i$h if(hCallWnd[index]==NULL)
1 BVivEG continue;
fH}` if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
m&b!\"0 {
Q-BciBh$ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
L2AZ0E"ub bProcessed=TRUE;
R>#T{<<L }
t:$p8qR }
t4h5R }
H<dm;cU else if((lParam&0xc000ffff)==1){ //Key down
j @sd x)1+ switch(wParam)
5h1FvJg {
o{m$b2BW case VK_MENU:
2i8'*L+j MaskBits|=ALTBIT;
Eo)n(
Z9 break;
m &c8@-T case VK_CONTROL:
Fpl<2eBg4 MaskBits|=CTRLBIT;
,c}Q;eYc3 break;
`<q{8 case VK_SHIFT:
H?M8j] R-) MaskBits|=SHIFTBIT;
naW}[y*y; break;
L<5go\!bV default: //judge the key and send message
CQ6Z[hLWF break;
k2p{<SO; }
GXJJOy1"! for(int index=0;index<MAX_KEY;index++)
P7<~S8)Y {
zLC\Rc4 if(hCallWnd[index]==NULL)
)=ZWn,ZB continue;
ad }^Dj/ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
b[VP"KZ ? {
.,UpI|b SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
`fc2vaSH = bProcessed=TRUE;
O>)8< yi$ }
&PgbFy
}
*}A J7] }
|_
E)2b:h if(!bProcessed){
WZ;f3
" for(int index=0;index<MAX_KEY;index++){
.u)Po;e` if(hCallWnd[index]==NULL)
pgfI1`h continue;
D@FJVF7c if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
L0_R2EA SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
4: 5 CnK }
315Rk!{AJ }
!2$O^
}6" }
\} P} H return CallNextHookEx( hHook, nCode, wParam, lParam );
OT\[qaK }
r4D6g>)h1q l^WFMeMD3a BOOL InitHotkey()
&-s!ko4z {
[uW{Ap ~2 if(hHook!=NULL){
bY&s$Ry3" nHookCount++;
#*1\h=bzmW return TRUE;
i{
eDV
}
dGTAZ(1W else
7[ *,t hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
\P+lb-~\" if(hHook!=NULL)
Hq< Vk.Nk nHookCount++;
SPn0D9b] return (hHook!=NULL);
iVREkZ2SC }
/DJyNf* BOOL UnInit()
bxK1v7 {
7Oru{BQ"> if(nHookCount>1){
SP97Q- nHookCount--;
j^ex5A.&
& return TRUE;
/@Y/(+DE }
O. V!L BOOL unhooked = UnhookWindowsHookEx(hHook);
wYOSaGyZ0I if(unhooked==TRUE){
[D^KM|I%+ nHookCount=0;
(KK9/k hHook=NULL;
KPs5? X }
jx+%X\zokA return unhooked;
$:t;WXc.< }
r,EIOcz: )1Z*kY?f! BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Z~9\7QJn {
|*e
>hk BOOL bAdded=FALSE;
%, XyhS5[o for(int index=0;index<MAX_KEY;index++){
yv[s)c} if(hCallWnd[index]==0){
^kzw/.I{ hCallWnd[index]=hWnd;
W,}HQ HotKey[index]=cKey;
=;i@,{
~ HotKeyMask[index]=cMask;
CT6a bAdded=TRUE;
P}KyT?X: KeyCount++;
2~K.m@U}!Z break;
oost}%WxN }
Sz.jv#Y }
=pF 6 return bAdded;
#,0%g1 }
.UU BAyjm oZA?}#DRl BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
x3MV"hm2 {
)?:V5UO\ BOOL bRemoved=FALSE;
Ir_K83VM for(int index=0;index<MAX_KEY;index++){
(B}+uI{ if(hCallWnd[index]==hWnd){
r~si:?6: if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
#-+!t<\ hCallWnd[index]=NULL;
/q ;MihK HotKey[index]=0;
6dt]$ HotKeyMask[index]=0;
?R&,1~h bRemoved=TRUE;
;%"UZ~]f KeyCount--;
o=X6PoJN_ break;
2n2{Oy>L }
1t
WKH }
9P#E^;L }
pkWzaf return bRemoved;
qHt!)j9GKv }
:CNHN2 J a<B[~J 4i void VerifyWindow()
X@*$3z#Z {
5P,{h for(int i=0;i<MAX_KEY;i++){
s"*zyLUUo if(hCallWnd
!=NULL){ 1NtN-o)N?
if(!IsWindow(hCallWnd)){ >t<FG2
hCallWnd=NULL; b?hdWQSW7
HotKey=0; 7q<I7Wt
HotKeyMask=0; QU2\gAM
KeyCount--; lUJ/ nG0l
} ]2T =%(*
} @V
Bv}Jo
} ]!E|5=q
} ^z-e"
hw:zak#j,
BOOL CHookApp::InitInstance() 559znM=
{ ==F[5]?
AFX_MANAGE_STATE(AfxGetStaticModuleState()); R%Gh4y\nF
hins=AfxGetInstanceHandle(); RX P 0
4
InitHotkey(); (Eq0 |"cj
return CWinApp::InitInstance(); \Azl6`Em
}
q+>J'UGb
%=xR$<D
int CHookApp::ExitInstance() o$FqMRep
{ )q&=x2`
VerifyWindow(); s?@{
UnInit(); HF"
v
\
return CWinApp::ExitInstance(); a;|C51GH
} *Em 9R
[ Lt1OdGl
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file .iNPLz1
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) 8zP{Cmm
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ vz</|s
#if _MSC_VER > 1000 8l-+
4~mH
#pragma once j(HC^\Hi
#endif // _MSC_VER > 1000 (D]l/akP
yd2v_
class CCaptureDlg : public CDialog h@7Shp
{ wXIsc;
// Construction 6TvlK*<r=
public: e; 5n.+m
BOOL bTray; vE0Ty9OH"]
BOOL bRegistered; *
xdS<
BOOL RegisterHotkey(); 3<LG~HWST
UCHAR cKey; IT5AB?bxH
UCHAR cMask; 6?b9~xRW
void DeleteIcon(); X[\b!<C
void AddIcon(); al$G OMi
UINT nCount; .9_]8T
void SaveBmp(); 3/+9#
CCaptureDlg(CWnd* pParent = NULL); // standard constructor M-inlZNR
// Dialog Data :|cC7,S
//{{AFX_DATA(CCaptureDlg) y/U(v"'4U
enum { IDD = IDD_CAPTURE_DIALOG }; g '2'K
CComboBox m_Key; e$HN/O
BOOL m_bControl; B*=m%NXf
BOOL m_bAlt; #[ZF'9x
BOOL m_bShift; Ik[aiz
CString m_Path; Ay?KE{Qs '
CString m_Number; B \?We\y
//}}AFX_DATA Yq~$Q4
// ClassWizard generated virtual function overrides j8Nl'"
//{{AFX_VIRTUAL(CCaptureDlg) wz1fx>Q
public: /^_~NF#
virtual BOOL PreTranslateMessage(MSG* pMsg); &5JTcMC^
protected: [O)(0
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support X!=E1TL
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); )P&>Tc?;z
//}}AFX_VIRTUAL @J J,$?
// Implementation yCznRd}J
protected: IQn|0$':Z
HICON m_hIcon; u,h ,;'J
// Generated message map functions Ns?qLSN
//{{AFX_MSG(CCaptureDlg) Xvy3D@o
virtual BOOL OnInitDialog(); mOiA}BGw
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); vo48\w7[
afx_msg void OnPaint(); h#_KO-#.[
afx_msg HCURSOR OnQueryDragIcon(); `re9-HM
virtual void OnCancel(); *Uq1q
afx_msg void OnAbout(); m417=wf
afx_msg void OnBrowse(); l#40VHa?S
afx_msg void OnChange(); _i@{:v
//}}AFX_MSG fP|rD[
DECLARE_MESSAGE_MAP() F_28q15~:
}; y3!r;>2k=
#endif sK1YmB :~a
oWCy%76@
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file 4sU*UePr
#include "stdafx.h" j?!BHNs
#include "Capture.h" KDx~^OO
#include "CaptureDlg.h" j_=A)B?
#include <windowsx.h> B 4s^X`?z
#pragma comment(lib,"hook.lib") #jY\l&E
#ifdef _DEBUG 9 Vn
#define new DEBUG_NEW ZUDdLJ
#undef THIS_FILE +rT%C&ze
static char THIS_FILE[] = __FILE__; &yu3nA:7D
#endif c
eH8
#define IDM_SHELL WM_USER+1 UNx|+
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); 2oY.MQD7iW
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); 7d9kr?3(U
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; ~3]ZN'b\
class CAboutDlg : public CDialog +TA'P$j
{ xZmO^F5KHj
public: x#wkODLqi
CAboutDlg(); m8Wv46%
// Dialog Data ~|W0+ &):
//{{AFX_DATA(CAboutDlg) $!~R'N c
enum { IDD = IDD_ABOUTBOX }; }>)e~\Tdzb
//}}AFX_DATA _e2=BE`W)
// ClassWizard generated virtual function overrides OR{<)L
//{{AFX_VIRTUAL(CAboutDlg) :0G_n\
protected: u\L=nCtLby
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 4!%@{H`3
//}}AFX_VIRTUAL F0yvV6;
// Implementation g43j-[j)
protected: ,tt
.oF|
//{{AFX_MSG(CAboutDlg) 5m.{ayE
//}}AFX_MSG N^G
$:GC
DECLARE_MESSAGE_MAP() _(#HQd,i
}; uc.dtq!
U[4Xo&`
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) ll]MBq
{ KKrLF?rc
//{{AFX_DATA_INIT(CAboutDlg) yH\3*#+
//}}AFX_DATA_INIT hDO\Q7
} [r[IWy(}
#3b_#+,
void CAboutDlg::DoDataExchange(CDataExchange* pDX) hxCSE$f4
{ bOEO2v'cQ
CDialog::DoDataExchange(pDX); A*1-2
//{{AFX_DATA_MAP(CAboutDlg) Ry$zF~[
//}}AFX_DATA_MAP $)HD`E
} W6e,S[J^FY
~}lYp^~:J
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) :i{Svb*_'
//{{AFX_MSG_MAP(CAboutDlg) [`F}<L."
// No message handlers {Xw6]d
//}}AFX_MSG_MAP iMT[sb
END_MESSAGE_MAP() S.<aCN<@
,A$#gLyk<
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) 9<e%('@[
: CDialog(CCaptureDlg::IDD, pParent) qjcPJ
{ >,Z[IAU.x5
//{{AFX_DATA_INIT(CCaptureDlg) :V9%R~h/
m_bControl = FALSE; j&(Yk"j+
m_bAlt = FALSE; S'%|40U
m_bShift = FALSE; 6`c5\G+
m_Path = _T("c:\\"); KQf=t0Z=Ce
m_Number = _T("0 picture captured."); ifXGH>C
nCount=0; *?JNh;
bRegistered=FALSE; jkQ%b.a
bTray=FALSE; VRb+-T7"
//}}AFX_DATA_INIT -ho%9LW%|
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 azs lNL
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); Kl Kk?6>
} ]ZMFK>"^%
RXi/&'+H
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) yd}1Mx
{ ?rJe"TOIy
CDialog::DoDataExchange(pDX); 8t)?$j$
//{{AFX_DATA_MAP(CCaptureDlg) @TQzF-%#7
DDX_Control(pDX, IDC_KEY, m_Key); o]@Mg5(8Q
DDX_Check(pDX, IDC_CONTROL, m_bControl); Q)IL]S
DDX_Check(pDX, IDC_ALT, m_bAlt); I[l8@!0
DDX_Check(pDX, IDC_SHIFT, m_bShift); f} !Eu
DDX_Text(pDX, IDC_PATH, m_Path); Uhw:XV@m
DDX_Text(pDX, IDC_NUMBER, m_Number); f`gs/R
//}}AFX_DATA_MAP qk{+Y
} @W1F4HYds
2Y7u M;8
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) N|rB~
//{{AFX_MSG_MAP(CCaptureDlg) baO'FyCs9&
ON_WM_SYSCOMMAND() 9cnLf#
ON_WM_PAINT() yrF"`/zv6|
ON_WM_QUERYDRAGICON() G%HuB5:u
ON_BN_CLICKED(ID_ABOUT, OnAbout) ^H(,^cVN
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) ^vY[d]R _\
ON_BN_CLICKED(ID_CHANGE, OnChange) +%~/~1
//}}AFX_MSG_MAP q:/3uC7
END_MESSAGE_MAP() Hrg~<-.La
;:]#Isq
BOOL CCaptureDlg::OnInitDialog() 2.2G79U,
{ \-W|)H
CDialog::OnInitDialog(); Yo*.? Mq'
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); QFNw2:)
ASSERT(IDM_ABOUTBOX < 0xF000); !qe:M]C'l
CMenu* pSysMenu = GetSystemMenu(FALSE); V{{Xz:
if (pSysMenu != NULL) ,+>JQ82
{ '* eeup
CString strAboutMenu; K(3_1*e
strAboutMenu.LoadString(IDS_ABOUTBOX); P;U(2;9 N
if (!strAboutMenu.IsEmpty()) I /z`)
{ 5Ly Wg2
pSysMenu->AppendMenu(MF_SEPARATOR); $]<wQH/?_
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); )>(ZX9diV
} ^oMdx2Ow#
} X.GK5Phd
SetIcon(m_hIcon, TRUE); // Set big icon IKVFbTX:y
SetIcon(m_hIcon, FALSE); // Set small icon JFu9_=%+
m_Key.SetCurSel(0); Q#5~"C
RegisterHotkey(); NHQi_U
CMenu* pMenu=GetSystemMenu(FALSE); &7r73~TXm
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); V [Wo9Y\
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); &&ZX<wOM
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); )Ah 7
return TRUE; // return TRUE unless you set the focus to a control 2GxkOch
} J,*+Ak
~
q.bxnta"
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) l?B=5*0
{ %.WW-S3
if ((nID & 0xFFF0) == IDM_ABOUTBOX) M.67[Qj~"u
{ 'Pe;Tp>`
CAboutDlg dlgAbout;
no(or5UJ
dlgAbout.DoModal(); @~bP| a
} LT#EYnG
else ?&-$Zog
{ LSrKi$
CDialog::OnSysCommand(nID, lParam); { u3giB
} eig{~3
} g?N^9B,$2
t=fr`|!
void CCaptureDlg::OnPaint() e F)my
{ P9)L1l<3I
if (IsIconic()) ue*o>iohB
{
H 3so&_
CPaintDC dc(this); // device context for painting I2WWhsNC
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); u\(>a
// Center icon in client rectangle *).!
int cxIcon = GetSystemMetrics(SM_CXICON); ]wwN mmE
int cyIcon = GetSystemMetrics(SM_CYICON); P4:Zy;$v!
CRect rect; Fl!D2jnN
GetClientRect(&rect); |G/U%?`
int x = (rect.Width() - cxIcon + 1) / 2; 3Ww 37V>h
int y = (rect.Height() - cyIcon + 1) / 2; 85USMPF
// Draw the icon QjKh#sU&
dc.DrawIcon(x, y, m_hIcon); Dq-[b+bm
} 49ehj1Se
else [6Q1yNE
{ ]X> I(p@
CDialog::OnPaint(); ,H_d#Koa.
} ;I*N%a TK
} yxi&80$
{Wndp%
HCURSOR CCaptureDlg::OnQueryDragIcon() %Fx^"
{ )q`.tsR>
return (HCURSOR) m_hIcon; 0\Tp/Ph
} v\E6N2.S
i-9W8A
void CCaptureDlg::OnCancel() +BDW1%
{ !<out4Mz"
if(bTray) 3
2"f'{
DeleteIcon(); (*kKfg4Wj
CDialog::OnCancel(); Ta$55K0
} YP[8d,
N,UUM|?9_
void CCaptureDlg::OnAbout() b7'l3m Qjk
{ SYh>FF"
CAboutDlg dlg; V`9*_8Dx2
dlg.DoModal(); j7$xHnV4
} 9m)gp19YA
NwdrJw9
void CCaptureDlg::OnBrowse() 1CR\!?
{ {|<yZ,,p
CString str; )!U@:x\K
BROWSEINFO bi; =[zP
char name[MAX_PATH]; ^nK 7&]rK
ZeroMemory(&bi,sizeof(BROWSEINFO)); DWEDL[{
bi.hwndOwner=GetSafeHwnd(); olr-oi`4C
bi.pszDisplayName=name; |~#A?mK-
bi.lpszTitle="Select folder"; IVy<>xpt
bi.ulFlags=BIF_RETURNONLYFSDIRS; vvs2:87zvJ
LPITEMIDLIST idl=SHBrowseForFolder(&bi); 6=qC/1,l
if(idl==NULL) X{(?p=]
return; MPK rr
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); )a5ON8?
str.ReleaseBuffer(); @^DVA}*b)
m_Path=str; (5CgC<
if(str.GetAt(str.GetLength()-1)!='\\') =>kg]
m_Path+="\\"; 4GH &u,
UpdateData(FALSE); 6(x53y__
} +SE \c
^Epup$
void CCaptureDlg::SaveBmp() F'F6 &a+
{ 5;G0$M0
CDC dc; }/#*opcv
dc.CreateDC("DISPLAY",NULL,NULL,NULL); PVIZ
Y^64
CBitmap bm; q[+h ~)
int Width=GetSystemMetrics(SM_CXSCREEN); G
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int Height=GetSystemMetrics(SM_CYSCREEN); NEPK
bm.CreateCompatibleBitmap(&dc,Width,Height); D>;_R
HK
CDC tdc; "shX~zd5
tdc.CreateCompatibleDC(&dc); fUfd5W1"
CBitmap*pOld=tdc.SelectObject(&bm); aOd|;Z
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); KJv%t_4'F
tdc.SelectObject(pOld); !@wUARQ
BITMAP btm; {$5g29
bm.GetBitmap(&btm); w{u,YM(Q
DWORD size=btm.bmWidthBytes*btm.bmHeight;
?6>*mdpl
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); 4q:8<*W=
BITMAPINFOHEADER bih; {'[VL;k
bih.biBitCount=btm.bmBitsPixel; V;^N:I\js
bih.biClrImportant=0; FFcIOn
bih.biClrUsed=0; +'+Nr<
bih.biCompression=0; CrSBN~
bih.biHeight=btm.bmHeight; N-t"CBTO
bih.biPlanes=1; N=7iQ@{1
bih.biSize=sizeof(BITMAPINFOHEADER); sdiWQv
bih.biSizeImage=size; _sZ&=-FR
bih.biWidth=btm.bmWidth; w\UAKN60
bih.biXPelsPerMeter=0; o3eaNYa
bih.biYPelsPerMeter=0; ZHUW1:qs
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); nP<u.{q
L
static int filecount=0; {\NBNg(Vo
CString name; <}h<By)
name.Format("pict%04d.bmp",filecount++); KATf9-Sz
name=m_Path+name; YJ-<t6
BITMAPFILEHEADER bfh; rNKeY48\
bfh.bfReserved1=bfh.bfReserved2=0; !`4ie
bfh.bfType=((WORD)('M'<< 8)|'B'); Z!Z{Gm3
bfh.bfSize=54+size; n*' :,m
bfh.bfOffBits=54; %'=2Jy6h
CFile bf; u^B! 6Sj8
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ "EA =auN{
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); vM]5IHqeE
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); p&u\gSo
bf.WriteHuge(lpData,size); jJNl{nyq
bf.Close(); Y<kz+d,C
nCount++; e=p_qhBt
} 9Iq<*\V 4
GlobalFreePtr(lpData); .Y^3G7On
if(nCount==1) 1Y;.fZE
m_Number.Format("%d picture captured.",nCount); - US>].
else |pbetA4&
m_Number.Format("%d pictures captured.",nCount); &cT