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:
lNls8@ +%$!sp? 一、实现方法
mNWmp_c,1 W&TPrB 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
q8P| ] qW$IpuK #pragma data_seg("shareddata")
G@
BrU q HHOOK hHook =NULL; //钩子句柄
<;phc~0+ UINT nHookCount =0; //挂接的程序数目
.oN<c]iqE static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
j}#48{ static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
h,rGa\X~0 static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
M+
8!#n static int KeyCount =0;
9@:H9"w static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
86vk" #pragma data_seg()
Pm#B'N#*N| FFK79e/5 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。
Hx62x X vA;ml$ 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:
'O
\YL(j_e ol:,02E& BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
?U iwr{Q cKey,UCHAR cMask)
5i83(>p3]e {
Q?I)1][ !" BOOL bAdded=FALSE;
DUM,dFIlvF for(int index=0;index<MAX_KEY;index++){
}\OLBg/ if(hCallWnd[index]==0){
D>VI{p hCallWnd[index]=hWnd;
IP-CN HotKey[index]=cKey;
f|w+}z HotKeyMask[index]=cMask;
n|yl3v bAdded=TRUE;
EYcvD^!1g KeyCount++;
\aU^c24> break;
J<>z}L{ }
Bl3G_Ep }
Lk4&&5q return bAdded;
8Rc4+g }
3@XCP-` //删除热键
Gxy>aS3 BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Rr|VGtg {
ipw _AC~ BOOL bRemoved=FALSE;
F,%qG, for(int index=0;index<MAX_KEY;index++){
#fzvK+ if(hCallWnd[index]==hWnd){
3k5Mty if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
`P)1RTVx hCallWnd[index]=NULL;
STVJu![ HotKey[index]=0;
`0=0IPVd HotKeyMask[index]=0;
p%]*I? bRemoved=TRUE;
HJ !)D~M{ KeyCount--;
|t4k&Dkx` break;
RR75ke[Hs }
&!N5}N& }
;6e#W! }
^.nvX{H8~= return bRemoved;
P@PZ m }
4+$<G /K o!aKeM~|Es tURIDj%#p DLL中的钩子函数如下:
3wX{U8mrg "of (,p LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
{iYu
x;( {
v"F.<Q BOOL bProcessed=FALSE;
e,Gv~ae9 if(HC_ACTION==nCode)
/21d%T:} {
2t<
dCw if((lParam&0xc0000000)==0xc0000000){// 有键松开
A AH-Dj|&l switch(wParam)
c1jHg2xim {
l(v$+ case VK_MENU:
i74^J +xk MaskBits&=~ALTBIT;
zt[TShD^ break;
Mpk^e_9`< case VK_CONTROL:
SV<*qz MaskBits&=~CTRLBIT;
l0U6eOx break;
2GqPS case VK_SHIFT:
JAC W#'4hV MaskBits&=~SHIFTBIT;
7. G break;
[YHvyfk~_ default: //judge the key and send message
#Vs/1y`() break;
^n@iCr9 }
/quf'CV} for(int index=0;index<MAX_KEY;index++){
0k:&7(j if(hCallWnd[index]==NULL)
"<v_fF<Y continue;
HAf.LdnzS if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
0Y)b319B {
\S=!la_T@m SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
,h#!!j\j6 bProcessed=TRUE;
cQ6[o"j. }
6 KnD(im }
MeQ(,irr^ }
c5;YKON else if((lParam&0xc000ffff)==1){ //有键按下
J}._v\Q7P switch(wParam)
ii2oWU {
/v5Pk.!o case VK_MENU:
ZNOoyWYi5 MaskBits|=ALTBIT;
66p_d'U break;
yZ0; \Tr*J case VK_CONTROL:
g~FB&U4c MaskBits|=CTRLBIT;
nI2}E break;
UM|GX case VK_SHIFT:
)P|%=laE8 MaskBits|=SHIFTBIT;
:{_Or'L break;
])m",8d&T default: //judge the key and send message
"'t<R}t!A break;
kgr:85 }
Pk8L-[&v for(int index=0;index<MAX_KEY;index++){
,=$yvZs4[] if(hCallWnd[index]==NULL)
oq8~PTw continue;
}K<;ygcWE@ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
`3pe\s {
Q Aygr4\X^ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
1yX&iO^d bProcessed=TRUE;
v bDw2 }
JO :m:
M }
oYJ&BPuA' }
k\ I$ve"* if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
Gk[P-%%b / for(int index=0;index<MAX_KEY;index++){
5Hr(9) if(hCallWnd[index]==NULL)
^ /
f*5k continue;
Q.z2 (& if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
a P{xMB#1h SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
R)<Fqa7Tm //lParam的意义可看MSDN中WM_KEYDOWN部分
2i,Jnv=sR }
:6HMb^4 }
{dMa&r|lp }
D|e 6$O5o return CallNextHookEx( hHook, nCode, wParam, lParam );
c}QQ8'_ }
7DOAG[gH De>pIN;B> 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
Q96g7[ yt!K|g BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
M\`6H8aLn BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
|I OTW=> HowlJ[ km% 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
^<y$+HcH 8$G$Rdn LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
dcHkb,HsO {
5.GBd_; if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
N" E\o,_ {
^+GN8LUs //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
cst=ms SaveBmp();
'kx{0J? return FALSE;
b]|7{yMV }
TS
UN(_XGW …… //其它处理及默认处理
*Gu=O|Mm }
HnY: gu o,aI<5" 2B!nLLCp+ 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。
/OxF5bN2 (qPZEZKx 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。
Q7}wY OcSLRN?t 二、编程步骤
58v5Z$%-- Z>M*!mQi 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
UI!EIZ*~ pkk0?$l", 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
O$&p<~ >Zr/U!W*? 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
VFYJXR{ 0f-gQD 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
4e%SF|(Y'h 4cV(Z-\ 5、 添加代码,编译运行程序。
c69C=WQ x1Si&0T0P< 三、程序代码
i,)kI 7
'f> ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
L1D%vu` #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
CX1'B0=\r #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
H>Fy 2w #if _MSC_VER > 1000
?iia #pragma once
9k*'5(D4S #endif // _MSC_VER > 1000
q-!m|<Z #ifndef __AFXWIN_H__
sF<4uy #error include 'stdafx.h' before including this file for PCH
kw yvd`J8 #endif
HX=`kkX #include "resource.h" // main symbols
-AffKo class CHookApp : public CWinApp
7M$>'PfO {
|bBYJ public:
IGbQ L CHookApp();
^(6.M\Q // Overrides
P"xP%zqo // ClassWizard generated virtual function overrides
UnO -? //{{AFX_VIRTUAL(CHookApp)
Z+vLEEX*uQ public:
bF}~9WEa virtual BOOL InitInstance();
XS1>ti|< virtual int ExitInstance();
5q8bM.k\7N //}}AFX_VIRTUAL
(>Tu~Vo //{{AFX_MSG(CHookApp)
>yL8C:J9 // NOTE - the ClassWizard will add and remove member functions here.
YL{LdM-xM // DO NOT EDIT what you see in these blocks of generated code !
IB?5y~+h //}}AFX_MSG
SYC_=X DECLARE_MESSAGE_MAP()
\
(X~Z };
V=
.'Db2D LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
TSD7.t)^ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
G,$jU9 f BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
av5lgv)3 BOOL InitHotkey();
>Vg<J~[g BOOL UnInit();
l9SbuT$U #endif
(IEtjv}D ,I)/ V>u //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
TYB^CVSZ #include "stdafx.h"
2>UyA.m0 #include "hook.h"
/gPn2e; #include <windowsx.h>
pET5BMxGG #ifdef _DEBUG
.ipYZg'V #define new DEBUG_NEW
,c7 8O8| #undef THIS_FILE
XRaq\a`=: static char THIS_FILE[] = __FILE__;
;zp0,[r #endif
Gh@QR`xxc #define MAX_KEY 100
+=:CW'B5 #define CTRLBIT 0x04
'KXvn0 #define ALTBIT 0x02
Blf;_e~=[j #define SHIFTBIT 0x01
*%Q!22?6F #pragma data_seg("shareddata")
v+Ooihxl HHOOK hHook =NULL;
^OYar( UINT nHookCount =0;
PiM@iS static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
a[t2TjB static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
vu1F static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
jtN2%w; static int KeyCount =0;
CFn!P;.! static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
p+A#t~K #pragma data_seg()
S^~GI$ HINSTANCE hins;
IEO5QV:u: void VerifyWindow();
EAx@a% BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
*R8q)Q //{{AFX_MSG_MAP(CHookApp)
A-4\;[P\ // NOTE - the ClassWizard will add and remove mapping macros here.
friNo^v& // DO NOT EDIT what you see in these blocks of generated code!
&s\w:
9In //}}AFX_MSG_MAP
#uFP
eu: END_MESSAGE_MAP()
_kgw+NA&-H XG*Luc-v CHookApp::CHookApp()
RXLD5$s^ {
s8eFEi // TODO: add construction code here,
r1xNU0A // Place all significant initialization in InitInstance
Ean@GDLz8 }
t&0pE(MO/ lcyan CHookApp theApp;
kcI3pmgj LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
b6Dve] {
gHA"O@HgDI BOOL bProcessed=FALSE;
X >C*(/a if(HC_ACTION==nCode)
hQPiGIs {
hbzU?_} if((lParam&0xc0000000)==0xc0000000){// Key up
mq su8ti switch(wParam)
\h?C
G_|] {
g!cTG-bh>J case VK_MENU:
)"wWV{k MaskBits&=~ALTBIT;
ErHbc2 break;
5c!~WckbJ case VK_CONTROL:
$#8dtF MaskBits&=~CTRLBIT;
"\)j=MI8u+ break;
s9@/(_ case VK_SHIFT:
U,~\}$<I MaskBits&=~SHIFTBIT;
z45ImItH break;
ON\_9\kv default: //judge the key and send message
-6(C^X% break;
pQ!NhzQ }
,QdUfM for(int index=0;index<MAX_KEY;index++){
Bc`jkO.q if(hCallWnd[index]==NULL)
g,r'].Jg continue;
yk,o*g if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
kW3V"twx {
VW}xY SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
VkZrb2]v bProcessed=TRUE;
k$j>_U? P }
YJ3aJ^m#E }
@GK0j"_ }
sjvlnnO else if((lParam&0xc000ffff)==1){ //Key down
`rN,*kcP switch(wParam)
[?Wt ZM^q {
P=OHiG\z case VK_MENU:
!MOVv\@O MaskBits|=ALTBIT;
3Gubq4r break;
nm_]2z O case VK_CONTROL:
,|<2wn#q MaskBits|=CTRLBIT;
K?8{y break;
5IE 2&V case VK_SHIFT:
PV<=wc^ MaskBits|=SHIFTBIT;
?suNA break;
B\G?dmo default: //judge the key and send message
p'M5]G break;
4p\<b8(9> }
*$1M=$ for(int index=0;index<MAX_KEY;index++)
)
wtVFG {
KuL2X@)} if(hCallWnd[index]==NULL)
u%3D{Dj continue;
Y?a*-" if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
ouL/tt_~ {
nlOM4fJ( SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
PGF=q|j9K bProcessed=TRUE;
a{v1[i\ }
}RowAGWL }
o{f|==<t3# }
G1=GzAd$5 if(!bProcessed){
aVNBF` for(int index=0;index<MAX_KEY;index++){
MF)Xc\}0p if(hCallWnd[index]==NULL)
xb1 i{d continue;
eKPxSN Z if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
rJ|Q%utYz SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
^1^k< }
G0Q}
1 }
W ZdEfY{ }
{/#^v?, return CallNextHookEx( hHook, nCode, wParam, lParam );
y!) }
mrX 2w Fa:fBs{ BOOL InitHotkey()
r2M Iw {
?^t"tY if(hHook!=NULL){
v]SHude{ nHookCount++;
>{?~cNO& return TRUE;
&7"a.&*9xX }
{|nm0vg`A else
qkVGa%^ hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
7N9~nEU if(hHook!=NULL)
;T0F1 nHookCount++;
pESlBQ7{I return (hHook!=NULL);
ywWF+kR_ }
ky>0 BOOL UnInit()
?0
93'lA {
uTTM%-DMHT if(nHookCount>1){
^K*uP^B= nHookCount--;
{5w'.Z]0v return TRUE;
R1OC7q }
{@, } M BOOL unhooked = UnhookWindowsHookEx(hHook);
RP 'VEJ if(unhooked==TRUE){
VtIPw&KHW nHookCount=0;
tl9=u-D13@ hHook=NULL;
kzU;24"K }
o>*vG return unhooked;
l`=).k }
swNJ\m 7fRL'I#[@ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
|:yQOq| {
?|!167/O BOOL bAdded=FALSE;
WvSh i= for(int index=0;index<MAX_KEY;index++){
banie{ e if(hCallWnd[index]==0){
:&:IZkO hCallWnd[index]=hWnd;
%{qJkjG HotKey[index]=cKey;
:aHD'K HotKeyMask[index]=cMask;
O0OBkIj bAdded=TRUE;
Q -;ltJ KeyCount++;
tTrUVuZ break;
cfI5KLG~# }
E/ %S0 }
$T7hY$2Ql return bAdded;
s33< }O0 }
`.>5H\w0e 3l5rUjRwj BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
KY'"Mg^! {
GB Oz,_pw BOOL bRemoved=FALSE;
t95hI DtD for(int index=0;index<MAX_KEY;index++){
<K4`GT"n if(hCallWnd[index]==hWnd){
[ox!MQ+s if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
<qZ"W6&& hCallWnd[index]=NULL;
+LddW0h+=8 HotKey[index]=0;
V#
Mw HotKeyMask[index]=0;
lsmzy_gV7 bRemoved=TRUE;
jRIjFn|~{Y KeyCount--;
8\c=Un break;
#k? Rl }
[?TQ!l} 8A }
OdX-.FFl }
!R,9Pg*Ey return bRemoved;
xR+=F1y }
^$3 ~;/| L8- void VerifyWindow()
MU5@(s3B? {
pKK&+umg for(int i=0;i<MAX_KEY;i++){
o?A/ if(hCallWnd
!=NULL){ Fs_,RXW"
if(!IsWindow(hCallWnd)){ ( 8+ _~_
hCallWnd=NULL;
(2vR8
HotKey=0; Ycb<'M*jE
HotKeyMask=0; '>FJk`iI
KeyCount--; $t5
0<1
} y$@d%U*rW^
} .XM3oIaW
} L^PZ\OC
} ?#]K54?
!v\m%t|.
BOOL CHookApp::InitInstance() AfvTStwr
{ 2=tPxO')B
AFX_MANAGE_STATE(AfxGetStaticModuleState()); rN?
L8
hins=AfxGetInstanceHandle(); &H\$O.?f
InitHotkey(); Z5~dU{XsT
return CWinApp::InitInstance(); #|*;~:fz
} CaNZScnZ
AEkgm^t.{
int CHookApp::ExitInstance() JA7HO|
{ 9[5NnRv$P
VerifyWindow(); R= HN>(U
UnInit(); @t`|w.]ml
return CWinApp::ExitInstance(); gUDd2T#
} Lc^nNUzPo
QQ@, v@j5
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file >K#Z]k
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) %_+9y??
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ 1DcYc-k#
#if _MSC_VER > 1000 +Cx~4zEq
#pragma once S4<@ji
#endif // _MSC_VER > 1000 Y%qhgzz?/
>rlQY>5pH
class CCaptureDlg : public CDialog tjk Y[
{ z2t;!]"'l
// Construction rBs7,h
public: pPCxa#OV
BOOL bTray; E=gD{1,?
BOOL bRegistered; uR)itmc?
BOOL RegisterHotkey(); 93fKv
UCHAR cKey; G/(oQA
UCHAR cMask; )?'sw5C
void DeleteIcon(); O60j C;{F
void AddIcon(); 9In&vF7$
UINT nCount; R#tz"T@
void SaveBmp(); G%ycAm
CCaptureDlg(CWnd* pParent = NULL); // standard constructor 0]8+rWp|Nz
// Dialog Data 8+a/x#b-
//{{AFX_DATA(CCaptureDlg) 5`oor86
enum { IDD = IDD_CAPTURE_DIALOG }; Fhn883
CComboBox m_Key; |NtT-T)7
BOOL m_bControl; i#lvt#2J0
BOOL m_bAlt; [gzU/:
BOOL m_bShift; <t]c'
CString m_Path; 3~I<f^K4
CString m_Number; DWJ%r"aN
//}}AFX_DATA T'XAcH
// ClassWizard generated virtual function overrides f]T1:N*t
//{{AFX_VIRTUAL(CCaptureDlg) H#U{i
public: O,qR$#l
virtual BOOL PreTranslateMessage(MSG* pMsg); toTAWT D
protected: 4)2*|w
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support %9mB4Fc6b)
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); ;~~Oc
//}}AFX_VIRTUAL z('93vsO
// Implementation l[G,sq"
protected: aSHZR
HICON m_hIcon; Kox~k?JK
// Generated message map functions 9[T#uh!DC
//{{AFX_MSG(CCaptureDlg) 1b3Lan_2
virtual BOOL OnInitDialog(); ~R)w
9uq
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); rF~q"9
afx_msg void OnPaint(); Zy*}C,Z
afx_msg HCURSOR OnQueryDragIcon(); ::H jpM
virtual void OnCancel(); O-T/H-J`
afx_msg void OnAbout(); m OmT]X
afx_msg void OnBrowse(); ^fK8~g;rB
afx_msg void OnChange(); r@%32h
//}}AFX_MSG Qg6m
DECLARE_MESSAGE_MAP() fil6w</L
}; &KR@2~vE
#endif 3%EwA\V(
_%zU^aE
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file /u:Sn=SPd
#include "stdafx.h" ^"buF\3L
#include "Capture.h" fE7WLV2I>
#include "CaptureDlg.h" pNiqb+^nz
#include <windowsx.h> dje3&a
#pragma comment(lib,"hook.lib") kIWQ`)'
#ifdef _DEBUG 4QIvxH
#define new DEBUG_NEW >MQW{^
#undef THIS_FILE yAi4v[
static char THIS_FILE[] = __FILE__; A5H[g`&
#endif +'#d*r91@
#define IDM_SHELL WM_USER+1 =Fj:#s
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); ?N|PgNu X
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); 7gQt
k
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; ~o #
NOfYi
class CAboutDlg : public CDialog {Z?!*Ow
{ V|a59[y?
public: HKxrBQr78
CAboutDlg(); J7cqn j
// Dialog Data i;dr(c/ft
//{{AFX_DATA(CAboutDlg) i-ogeR?
enum { IDD = IDD_ABOUTBOX }; uo%O\}#u9
//}}AFX_DATA (U.&[B
// ClassWizard generated virtual function overrides `7
B
[<
//{{AFX_VIRTUAL(CAboutDlg) v#/,,)m
protected: O/-OW: 03
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support q?0goL
//}}AFX_VIRTUAL M]_vb,=1
// Implementation 15s?QSKj
protected: 6)bfd^JYn
//{{AFX_MSG(CAboutDlg) cxv)LOl-
//}}AFX_MSG 3<`h/`ku
DECLARE_MESSAGE_MAP() bg=`
}; ;zJ_apZ:{
<s{/ka3
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) rU~"A
{ [X=eCHB?
//{{AFX_DATA_INIT(CAboutDlg) ^|\?vA
//}}AFX_DATA_INIT x NC>m&T
} m76]INq
b~~}(^Bg
void CAboutDlg::DoDataExchange(CDataExchange* pDX) #F6ak,9S4
{ hs*:!&E
CDialog::DoDataExchange(pDX); eo,]b1C2n
//{{AFX_DATA_MAP(CAboutDlg) ~g,QwaA[
//}}AFX_DATA_MAP 1%:A9%O)t
} p_nrua?
JC+VG;kcs
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) p,0 \NUC
//{{AFX_MSG_MAP(CAboutDlg) "bO]
// No message handlers 50Jr(OeU<
//}}AFX_MSG_MAP w##Fpv<m
END_MESSAGE_MAP() wvYxL
c#p0
TDseWdA
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) g ` {0I[
: CDialog(CCaptureDlg::IDD, pParent) :Oj+Tc9A
{ GkO6r'MVE
//{{AFX_DATA_INIT(CCaptureDlg) wb?hfe
m_bControl = FALSE; $R5-JvJJH
m_bAlt = FALSE; 0qZ)$YKq
m_bShift = FALSE;
Ay`a>:p
m_Path = _T("c:\\"); Nl8Cctrf
m_Number = _T("0 picture captured."); Y\=:j7'
nCount=0; ~@O4>T+VW
bRegistered=FALSE; hh{liS% 10
bTray=FALSE; Qp54(`
//}}AFX_DATA_INIT sg y
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 0k>&MkM\^
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); ;wF|.^_2
} tv{.iM|V c
Ij8tBT?jlL
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) 5C&f-* Bh
{ ,jWd?-NH
CDialog::DoDataExchange(pDX); = V , _
//{{AFX_DATA_MAP(CCaptureDlg) S ] &->5"
DDX_Control(pDX, IDC_KEY, m_Key); ^/uGcz|.
DDX_Check(pDX, IDC_CONTROL, m_bControl); Y^G3<.B
DDX_Check(pDX, IDC_ALT, m_bAlt); }X?*o`sW
DDX_Check(pDX, IDC_SHIFT, m_bShift); LNb![Rq
DDX_Text(pDX, IDC_PATH, m_Path); Rt|Hma
DDX_Text(pDX, IDC_NUMBER, m_Number); QUDVsN#
//}}AFX_DATA_MAP 00p 7sZU^
} *X #e
m0,9yY::wj
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) MD)"r>k
//{{AFX_MSG_MAP(CCaptureDlg) O+$70
ON_WM_SYSCOMMAND() l_%~X9"
ON_WM_PAINT() $5IrM7i
ON_WM_QUERYDRAGICON() F~AS(sk
ON_BN_CLICKED(ID_ABOUT, OnAbout) Y Pc<
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) SDwSlwf
ON_BN_CLICKED(ID_CHANGE, OnChange) AIyv;}5
//}}AFX_MSG_MAP 57>ne)51
END_MESSAGE_MAP() #V6
-*
#77UKYj2L-
BOOL CCaptureDlg::OnInitDialog() {+:XVT_+
{ g@k9w{_
CDialog::OnInitDialog(); w!RH*S
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); j1<1D@UO
ASSERT(IDM_ABOUTBOX < 0xF000); )'~FDw\6
CMenu* pSysMenu = GetSystemMenu(FALSE); L'Zud,JKg
if (pSysMenu != NULL) d@tr]v5 B
{ l'T0<
CString strAboutMenu; <^Tj}5)n
strAboutMenu.LoadString(IDS_ABOUTBOX); 02[II_< 1
if (!strAboutMenu.IsEmpty()) )mdNvb[*n
{ 5KR|p Fq
pSysMenu->AppendMenu(MF_SEPARATOR); jVIpbG44
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); &*aU2{,s,;
} >G2-kL_
} ]Qr8 wa>Z
SetIcon(m_hIcon, TRUE); // Set big icon YkPt*?,P/
SetIcon(m_hIcon, FALSE); // Set small icon DZRxp,
m_Key.SetCurSel(0); %
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>
RegisterHotkey(); e9_+$Oo
CMenu* pMenu=GetSystemMenu(FALSE); ]gksyxn3
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); fm>K4\2
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); lM*O+k
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); 4d
G-
return TRUE; // return TRUE unless you set the focus to a control Pfx71*u,
} QJWES%m`
Rk%M~ D*-
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) dY<#a,eS
{ qk,y |7p
if ((nID & 0xFFF0) == IDM_ABOUTBOX) F |81i$R
{ Vor9
?F&w
CAboutDlg dlgAbout; !h>$bm
dlgAbout.DoModal(); 8$U ZL
} 2gAdZE&Y
else lhl0
{ t[,T}BCy.
CDialog::OnSysCommand(nID, lParam); MIF[u:&
} -_DiD^UcXn
} jA4v?(AO}#
D{c>i`\G
void CCaptureDlg::OnPaint() $Wzv$4;
{ Y0O<]2yVx
if (IsIconic()) hX| UE
{ *9Js:z7I
CPaintDC dc(this); // device context for painting 1r&
?J.z25
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); YCBML!L
// Center icon in client rectangle h$ iyclX
int cxIcon = GetSystemMetrics(SM_CXICON); Qfu*F}
int cyIcon = GetSystemMetrics(SM_CYICON); n3g
WMC
CRect rect; N vHy'
GetClientRect(&rect); gc7:Rb^E5t
int x = (rect.Width() - cxIcon + 1) / 2; R
4QwWSBJ
int y = (rect.Height() - cyIcon + 1) / 2; a 8hv .43
// Draw the icon 'Oy5G7^R
dc.DrawIcon(x, y, m_hIcon); O\F^@;]F6
} mRnzP[7-\)
else -_*XhD
{ [-Tt11
CDialog::OnPaint(); \BcJDdL
} :G=1$gb
} 5`'au61/2
PSqtZN
HCURSOR CCaptureDlg::OnQueryDragIcon() h8= MVh(I
{ ~K#_'Ldrd
return (HCURSOR) m_hIcon; p F*~)e
} \v
P2B
|XA aKZA
void CCaptureDlg::OnCancel() ID).*@(I"
{ zV(tvt
if(bTray) JS7}K)A2B6
DeleteIcon(); e9hVX[uq
CDialog::OnCancel(); )tI2?YIR
} 9Glfi@.
IfmIX+t?
void CCaptureDlg::OnAbout() 8j+:s\
{ 19w,'}CGk
CAboutDlg dlg; ?)o4 Kt'h
dlg.DoModal(); Hs`#{W{.
} ))69a
(VXx G/E3
void CCaptureDlg::OnBrowse() 5nM9!A\D
{ ':2*+
CString str; pT;-1c%:
BROWSEINFO bi; k1Mxsd
char name[MAX_PATH]; ~iR!3+yg4
ZeroMemory(&bi,sizeof(BROWSEINFO)); Up/u|A$0V
bi.hwndOwner=GetSafeHwnd(); cwWSNm|
bi.pszDisplayName=name; iI@Gyq=
bi.lpszTitle="Select folder"; 60~>f)vu
bi.ulFlags=BIF_RETURNONLYFSDIRS; PxVI{:Uz
LPITEMIDLIST idl=SHBrowseForFolder(&bi); 6=g]Y!o$
if(idl==NULL) T.w}6?2
return; 7k#${,k
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); <&Y}j&(
str.ReleaseBuffer(); XAULD]Q
m_Path=str; ND55`KT4
if(str.GetAt(str.GetLength()-1)!='\\') o!l3.5m2d
m_Path+="\\"; WVT5VJ7*
UpdateData(FALSE); eYD9#y
} oA3W
{
.1z$ A
void CCaptureDlg::SaveBmp() kG;eOp16R
{ 9p\wTzA
CDC dc; g"dZB2`C
dc.CreateDC("DISPLAY",NULL,NULL,NULL); 3e!Yu.q:
CBitmap bm; Puth8$
int Width=GetSystemMetrics(SM_CXSCREEN); 5Ckk5b
int Height=GetSystemMetrics(SM_CYSCREEN); 5nxS+`Pn.)
bm.CreateCompatibleBitmap(&dc,Width,Height); '^oGDlkr H
CDC tdc; fBWJ%W
tdc.CreateCompatibleDC(&dc); K7[AiU_I
CBitmap*pOld=tdc.SelectObject(&bm); DtJTnvG~B
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); =4M.QA@lI!
tdc.SelectObject(pOld); 6Er0o{iI
BITMAP btm; /VmCN]2AZ
bm.GetBitmap(&btm); 32bkouq
DWORD size=btm.bmWidthBytes*btm.bmHeight; v-7Rb)EP
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); sQ>B_Y!
BITMAPINFOHEADER bih; FG;<`4mY
bih.biBitCount=btm.bmBitsPixel; 5;K-,"UQ
bih.biClrImportant=0; UP~WP@0F
bih.biClrUsed=0; XEUa
bih.biCompression=0; mSw?2ba
bih.biHeight=btm.bmHeight; V$Xl^# tN
bih.biPlanes=1; 0,~6TV<K
bih.biSize=sizeof(BITMAPINFOHEADER); Ah" 'hFY
bih.biSizeImage=size; Oj4u!SY\j
bih.biWidth=btm.bmWidth; .n)!ZN
bih.biXPelsPerMeter=0; B::4Qme
bih.biYPelsPerMeter=0; ,yM}]pwlB
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); V'Z&>6Z
static int filecount=0; I4o=6ts
CString name; #A|D\IhF
name.Format("pict%04d.bmp",filecount++); iBtjd`V*
name=m_Path+name; tkdBlG]!
BITMAPFILEHEADER bfh; 1o;g1Z/
bfh.bfReserved1=bfh.bfReserved2=0; rt 3f7 s*
bfh.bfType=((WORD)('M'<< 8)|'B'); Mg a@JA"
bfh.bfSize=54+size; cz7CrK~5
bfh.bfOffBits=54; 'd2qa`H'}B
CFile bf; 56bud3CVs
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ ]e@0T{!
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); {w |dM#
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); fd5ZaE#f
bf.WriteHuge(lpData,size); ~|r'2V*
bf.Close(); !y
qa?\v9
nCount++; S/nj5Lh
} O2`oe4."vd
GlobalFreePtr(lpData); DD/>{kff
if(nCount==1) "W &:j:o
m_Number.Format("%d picture captured.",nCount); |b$>68:
else \uU=O
)
m_Number.Format("%d pictures captured.",nCount); X6LhM
UpdateData(FALSE); M1/M}~
} L(WL,xnBy
;t;Y.*&=S
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) H[BD)
{ yyY~ *Le
if(pMsg -> message == WM_KEYDOWN) eKZ@FEZ
{ `1E|PQbWc
if(pMsg -> wParam == VK_ESCAPE) sJ))<,e5I
return TRUE; ,67"C2Y
if(pMsg -> wParam == VK_RETURN) biK)&6|`sa
return TRUE; Pl rkgS0J
} DU5:+"
u3
return CDialog::PreTranslateMessage(pMsg); ~ON1Zw[+
} e/"yGQu
oUJj5iu}
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) V=j-Um;
{ Q00R<hu@F
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ Jv_.itc
SaveBmp(); fm(mO%
return FALSE; :]P~.PD5,
} }xAie(
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ [[R7~.;
CMenu pop; ?S (im
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); 1R0ffP]
CMenu*pMenu=pop.GetSubMenu(0); ~Cjz29|gp
pMenu->SetDefaultItem(ID_EXITICON); q,[k7&HS
CPoint pt; IDy_L;'`*
GetCursorPos(&pt); ~bdv_|k
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); Bk?8zYp
if(id==ID_EXITICON) wP[xmO-%
DeleteIcon(); 2v0!` &?M{
else if(id==ID_EXIT) v8ba~
OnCancel(); $4Z+F#mx
return FALSE; :P3{Nxa
} (GCG/8s
LRESULT res= CDialog::WindowProc(message, wParam, lParam); 2t+D8 d|c<
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) ,i?)
AddIcon(); \7pipde
return res; s}6+8 fE"
} T4mv%zzS
\|CPR6I
void CCaptureDlg::AddIcon() b2N6L2~V
{ \+-zRR0
NOTIFYICONDATA data; #
;K,,ku
x
data.cbSize=sizeof(NOTIFYICONDATA); F\a]n^
Y
CString tip; 3Jk[/.h
tip.LoadString(IDS_ICONTIP); !c%
data.hIcon=GetIcon(0); tAF]2VV(e
data.hWnd=GetSafeHwnd(); LO)GTyzvJ
strcpy(data.szTip,tip); {fZb@7?GF
data.uCallbackMessage=IDM_SHELL; kw*)/$5]
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; nqT> qS[Z
data.uID=98; s f(iE(o
Shell_NotifyIcon(NIM_ADD,&data); 3gAR4
ShowWindow(SW_HIDE); MDJc[am
bTray=TRUE; 11@]d]v ,
} 8p&kL