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:
Aaug0X
;Iax \rQ 一、实现方法
p735i`8 ?h)T\z 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:
WP5Vev9*+
e(H{C #pragma data_seg("shareddata")
X:m m<4 HHOOK hHook =NULL; //钩子句柄
oer3DD( UINT nHookCount =0; //挂接的程序数目
ijACfl{!:t static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
+:3s f%0 static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
=wznkqyhi static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
yA~1$sA1 static int KeyCount =0;
d]vom@iI static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
y<kg;-& 8 #pragma data_seg()
s1bb2R -,q
qQf 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
i
hcSS Um nm,(Wdr DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
2$b JMx> wGgeK,*_ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
a[jNT$8 cKey,UCHAR cMask)
z:oi@q {
n{(,r' BOOL bAdded=FALSE;
($Q|9>5, for(int index=0;index<MAX_KEY;index++){
[&pMU) if(hCallWnd[index]==0){
1EWskmp hCallWnd[index]=hWnd;
K"cV7U rE HotKey[index]=cKey;
:Q ?p^OC HotKeyMask[index]=cMask;
&2r[4 bAdded=TRUE;
; sAe#b KeyCount++;
?OFfU 4 break;
Y^b}~t }
LcTTfb+< }
>{[ return bAdded;
Y-+JDrK }
l
p|`n //删除热键
qNWSDZQ BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
K0|:+s@u {
=klfCFwP BOOL bRemoved=FALSE;
:A+}fBIN for(int index=0;index<MAX_KEY;index++){
"a-;?S& if(hCallWnd[index]==hWnd){
#giH`|#d if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
{7Hc00FM hCallWnd[index]=NULL;
7c83g2|% HotKey[index]=0;
%awr3h>$ HotKeyMask[index]=0;
5[]Yx l bRemoved=TRUE;
5!BW!-q KeyCount--;
HV{W7) break;
d^8n }
NInZ~4: }
ko"xR%Q }
(5e4>p&+ return bRemoved;
gF:|j( }
qq"0X! w j>G|Xv 5|Oj\L{ DLL中的钩子函数如下:
f^lhdZ\ q+
`QiPj LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
qWS"I+o,S {
AWg'J BOOL bProcessed=FALSE;
nF]zd%h if(HC_ACTION==nCode)
0,B"p {
]"'1-h91 if((lParam&0xc0000000)==0xc0000000){// 有键松开
Bm 4$ switch(wParam)
SPm2I(at7 {
<j1r6.E) case VK_MENU:
"JE->iD MaskBits&=~ALTBIT;
K5F;/KR" break;
^ywDa^;- case VK_CONTROL:
uSv]1m_-] MaskBits&=~CTRLBIT;
zm3$)*p1 break;
[x'D+! case VK_SHIFT:
_k#GjAPM MaskBits&=~SHIFTBIT;
Ii!{\p! break;
bX
6uGu
7 default: //judge the key and send message
a%/D~5Z break;
M\RHFTB<C }
Qe_C^(P for(int index=0;index<MAX_KEY;index++){
rONz*ly|i if(hCallWnd[index]==NULL)
WLiF D. continue;
^fE8|/]nG9 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
IY|`$sHb {
`VF_rC[? SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
S0ltj8t bProcessed=TRUE;
:KqSMuKR }
<sSH^J4QqX }
7>h(M+
/ }
Ii<k<Bt, else if((lParam&0xc000ffff)==1){ //有键按下
~V0 GRPnI switch(wParam)
\jb62Jp {
YF>15{H case VK_MENU:
#kE8EhQZ MaskBits|=ALTBIT;
Gd$!xN%O break;
u>=\.d< case VK_CONTROL:
F$i 6 MaskBits|=CTRLBIT;
39I|.B" break;
+U4';[LG1C case VK_SHIFT:
\-sW>LIA MaskBits|=SHIFTBIT;
s>%.bAxc break;
O$N;a9g default: //judge the key and send message
;.^!
7j break;
DXQ]b)y+N }
c}s#!|E0v for(int index=0;index<MAX_KEY;index++){
dH'02[; if(hCallWnd[index]==NULL)
y6Ez.$M continue;
LW#U+bv]Dq if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
+S'm<}"1 {
v +o6ZNX SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
'}:(y$9.` bProcessed=TRUE;
].sD#~L_ }
pfw`<*e' }
/1_O5'5+v }
wPq9`9 # if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
.hUlI3z9 for(int index=0;index<MAX_KEY;index++){
pE%*r@p4&4 if(hCallWnd[index]==NULL)
%:j`%F;R continue;
""Oir!4 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
9W,%[ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
j&
ykce //lParam的意义可看MSDN中WM_KEYDOWN部分
f$vU$>+[ }
rjj_]1?K }
;-_ZWk] }
1/i1o nu} return CallNextHookEx( hHook, nCode, wParam, lParam );
gYbcBb%z }
}^VikT]>1 /%gMzF 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
\UX9[5| ju07gzz BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
s3 fQGbU BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
YT,yRV9# *rB@[(/ 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
1K(mdL{m5 PF#<CF$ = LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
P1)87P {
`P <#kt if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
tx)$4 v {
ya[f?0b0 //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
j<`3xd' SaveBmp();
`VvQems return FALSE;
8(\J~I[^ }
7SNdC8GZ~ …… //其它处理及默认处理
lBm`W]3T }
h<bhH=6~ ~gHn>]S0 P 00%EB 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。
G/#m.=t TL)7X.1'L 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。
n5;@}Rai 5ArgM% 二、编程步骤
PKC0Dt;F. y%x:~. 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";
W*DKpJy _1mpsY<k 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
X|G[Ma? 2-jXj9kp` 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;
[9V}>kS) B#+n$5#FK 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
+-9-%O.(; wm Ie x 5、 添加代码,编译运行程序。
nkTdn gsUF\4A(J 三、程序代码
=f [/Pv .lM]>y) ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
Zu~w:uNmU #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
U_;="y #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
-7'|&zP #if _MSC_VER > 1000
X Q
CE`m #pragma once
cB36w$n8 #endif // _MSC_VER > 1000
"K$c 9Z8 #ifndef __AFXWIN_H__
{qU;;`P]| #error include 'stdafx.h' before including this file for PCH
X6_
RlV]Sk #endif
uA;#*eiA/ #include "resource.h" // main symbols
R MOs1<D class CHookApp : public CWinApp
VW*?(,#j{ {
A?$-Uqb"
public:
Dsn=fht CHookApp();
m*CW3y{n) // Overrides
}0Uh<v@ // ClassWizard generated virtual function overrides
/8nUecr //{{AFX_VIRTUAL(CHookApp)
z>iXNwz"? public:
1P'A*`!K virtual BOOL InitInstance();
e6mm;@F> virtual int ExitInstance();
/GM!3%'= //}}AFX_VIRTUAL
{2mF\A#. //{{AFX_MSG(CHookApp)
-84%6p2- // NOTE - the ClassWizard will add and remove member functions here.
ngmC~l*, // DO NOT EDIT what you see in these blocks of generated code !
d:>'c=y //}}AFX_MSG
uK`gveY DECLARE_MESSAGE_MAP()
R9Wr? };
J/:U,01 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
'o4`GkNh) BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
o0>| BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
V6'u\Ch| BOOL InitHotkey();
/U0Hk>$~( BOOL UnInit();
|)" y #endif
uv8kea .( +P Dk>PdEt //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
RAk"C!&^m #include "stdafx.h"
i+_=7(e #include "hook.h"
"Da-e\yA #include <windowsx.h>
6({)O1Z #ifdef _DEBUG
l6 }+,v@# #define new DEBUG_NEW
f~PS'I_r #undef THIS_FILE
7R
m\# static char THIS_FILE[] = __FILE__;
4b((,u$ #endif
QBH|pr
#define MAX_KEY 100
D&I/Tbc #define CTRLBIT 0x04
0l& '` #define ALTBIT 0x02
9<toDg_ #define SHIFTBIT 0x01
<DPRQhNW] #pragma data_seg("shareddata")
jkta]#O HHOOK hHook =NULL;
TC44*BHq UINT nHookCount =0;
B!;:,(S~ static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
7SH3k=x static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
&-p~UZy static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
nTGZ2C)c<' static int KeyCount =0;
DpeJx static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
FG+pR8aA$ #pragma data_seg()
db8vm4 HINSTANCE hins;
=$^90Q,Z; void VerifyWindow();
D`!BjhlW
BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
q_`j-! //{{AFX_MSG_MAP(CHookApp)
0^nF: F // NOTE - the ClassWizard will add and remove mapping macros here.
0Z]HH+Z; // DO NOT EDIT what you see in these blocks of generated code!
3c7i8b $ //}}AFX_MSG_MAP
Ba5*]VGG END_MESSAGE_MAP()
O(2c_! d ]0 = |?n$7 CHookApp::CHookApp()
o<txm ?+N {
,H,[)8 // TODO: add construction code here,
s]6;*mI2 // Place all significant initialization in InitInstance
"crp/Bj? }
OFmHj]I7= r|*_KQq CHookApp theApp;
9`
UbsxFl LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
@t1pB]O: {
[7~AWZU3 BOOL bProcessed=FALSE;
%72(gR2Wa2 if(HC_ACTION==nCode)
zh0T3U0D {
U1Fo #L if((lParam&0xc0000000)==0xc0000000){// Key up
4e .19H9 switch(wParam)
E`(=n(Qu {
=)c-Xz case VK_MENU:
_?cum~A@ MaskBits&=~ALTBIT;
)g^qgxnnV break;
^BRqsVw9 case VK_CONTROL:
mDZA\P_ MaskBits&=~CTRLBIT;
q m_m8 break;
lw}7kp4
2F case VK_SHIFT:
ER~RBzp MaskBits&=~SHIFTBIT;
k'N``. break;
O CIoY?a default: //judge the key and send message
yocFdI break;
4e
eh+T }
3(|,:"9g for(int index=0;index<MAX_KEY;index++){
$N}t)iA if(hCallWnd[index]==NULL)
Ab/JCZNn continue;
D}X6I#U'/ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
wd<{%qK`{ {
H~vrCi~t" SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
+
jeOZ bProcessed=TRUE;
4%8den,| }
?E+f<jol }
rO.[/#p\ }
]Q0bL else if((lParam&0xc000ffff)==1){ //Key down
%xG<hNw/ switch(wParam)
4vN:Kj {
4ytdcb case VK_MENU:
<fDT/ MaskBits|=ALTBIT;
^0cbN[~/ns break;
D_JGbNigA case VK_CONTROL:
9kF0H
a}J MaskBits|=CTRLBIT;
l4U*Lv>
break;
4lc|~Fj++ case VK_SHIFT:
GH-Fqz MaskBits|=SHIFTBIT;
P7,g^:$ break;
!
}e75=x default: //judge the key and send message
9_jiUZFje break;
M&29J }
3imsIBr for(int index=0;index<MAX_KEY;index++)
X<C fy {
[)jNy_4 if(hCallWnd[index]==NULL)
SJh~4R\ continue;
|te=DCO if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
_6,\;"it?8 {
w|S b`eR SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
# |(>UM\ bProcessed=TRUE;
Z : xb8]y }
Nb
!i_@m%s }
U?{oxy_[ 2 }
Wu|MNB?M if(!bProcessed){
X"q[rsB for(int index=0;index<MAX_KEY;index++){
/ILd|j(e if(hCallWnd[index]==NULL)
eIF6f&
F continue;
>lQa"F= if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
D]*|Zmr+} SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
5VOw}{Pt }
: -#w }
uF}dEDB|; }
S ;rd0+J return CallNextHookEx( hHook, nCode, wParam, lParam );
!
M CV@5$ }
;ZAwf0~ Il*!iX|23< BOOL InitHotkey()
*U$]U0M {
9DM,,h<` if(hHook!=NULL){
m>P\}A^N nHookCount++;
9{Et v w return TRUE;
RC1bTM }
u<fZ.1 else
>K,QP<B hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
^W:a7cMw if(hHook!=NULL)
: Bo nHookCount++;
xxl|j$m return (hHook!=NULL);
e/:? 9 }
hI*v)c BOOL UnInit()
h0k?(O {
Cx/J_Ro# if(nHookCount>1){
R?:Q=7K nHookCount--;
~D|,$E tX4 return TRUE;
V~/-e- 9u }
,C><n
kx BOOL unhooked = UnhookWindowsHookEx(hHook);
\a|~#N3? if(unhooked==TRUE){
lGR0-Gh2 nHookCount=0;
EZI#CLT[ hHook=NULL;
$<2d|;7r }
SZ[?2z return unhooked;
UxHI6,b }
SDE+"MjBY 0ElEaH1z BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
l P=I0A- {
e<1Ewml(] BOOL bAdded=FALSE;
?G',Qtz<K for(int index=0;index<MAX_KEY;index++){
tl!dRV92 if(hCallWnd[index]==0){
AQQa6Ce*
hCallWnd[index]=hWnd;
gM;m{gXYK HotKey[index]=cKey;
/"k [T HotKeyMask[index]=cMask;
\ZV>5N3hS bAdded=TRUE;
$3p 48`.\ KeyCount++;
9^n0<(99b break;
]*k ~jY, }
.4"BN<9 }
nyR<pnuC' return bAdded;
62'9lriQ }
4Ps;Cor+ zw+wq+2" BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Hqs-q4G$ {
gAztdAsLM BOOL bRemoved=FALSE;
P,)D0i for(int index=0;index<MAX_KEY;index++){
ey[Z<i1 if(hCallWnd[index]==hWnd){
>M{98NH if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
59j`Z^e hCallWnd[index]=NULL;
{p/Yz# HotKey[index]=0;
+kYp!00 HotKeyMask[index]=0;
]k]bLyz\J bRemoved=TRUE;
3>L5TYa KeyCount--;
}MMKOr( break;
[efU)O& }
b?iPQ$NyQ }
DDGDj)=` }
e/+.^ '{ return bRemoved;
GU/P%c/V }
q\i&ERr 1I69O6" void VerifyWindow()
nF]R" {
VvP: }yJ for(int i=0;i<MAX_KEY;i++){
A. tGr(r if(hCallWnd
!=NULL){ }ixCbuD
if(!IsWindow(hCallWnd)){ z{1A x
hCallWnd=NULL; UTu~"uCR
HotKey=0; OwNM`xSa|\
HotKeyMask=0; ySiZ@i4
KeyCount--; T>(X`(
} v8 =#1YB;
} vO9=CCxvq
} Y0lLO0'
} 4V,p\$;
}qp)VF
BOOL CHookApp::InitInstance() H6K8.
{ mUP!jTF
AFX_MANAGE_STATE(AfxGetStaticModuleState()); ju[y-am$/
hins=AfxGetInstanceHandle(); RZ{O6~VH
InitHotkey(); Lks+FW
return CWinApp::InitInstance(); v07A3oj
} %2I>-0]B
af@a /
int CHookApp::ExitInstance() p>?(uGV
{ GQYn |vm
VerifyWindow(); ]5a3e+
UnInit(); /2=9i84
return CWinApp::ExitInstance(); PDS( /x&
} 7@gH{p1
Q wG_-
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file ZEDvY=@a
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) q+8de_"]
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ ~Y~M}4
#if _MSC_VER > 1000 aizws[C
#pragma once }[!=O+gO
#endif // _MSC_VER > 1000 0%&}w UjV
)XSHKPTQ1
class CCaptureDlg : public CDialog T&6>Eb0{
{ .Y7Kd+)s)L
// Construction =BR+J9
public: ,!^c`_Q\>@
BOOL bTray; ,jz~Np_2
BOOL bRegistered; =?y0fLTc
BOOL RegisterHotkey(); l}(HE+?
UCHAR cKey; ; (}~m&p
UCHAR cMask; lAo ~w
void DeleteIcon(); 7O|`\&RYR
void AddIcon(); F%lC%~-qh
UINT nCount; ^vSSG5 :
void SaveBmp(); pV8tn!
CCaptureDlg(CWnd* pParent = NULL); // standard constructor Z5U\>7@&8
// Dialog Data G^h:#T
//{{AFX_DATA(CCaptureDlg) g^|R;s{
enum { IDD = IDD_CAPTURE_DIALOG }; v8C( $<3%
CComboBox m_Key; /=za
m3kd
BOOL m_bControl; K0v S
BOOL m_bAlt; Z6Mjc/
BOOL m_bShift; W)f=\.7
CString m_Path; vmNI$KZM
CString m_Number; &J9 + 5L8
//}}AFX_DATA 32aI0CT
// ClassWizard generated virtual function overrides Xe:^<$z
//{{AFX_VIRTUAL(CCaptureDlg) !9r%d8!z
public: -:r<sv$
virtual BOOL PreTranslateMessage(MSG* pMsg); 0>-}c>
protected: t~ I;IB
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support St!0MdCH
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); K@[Hej6d
//}}AFX_VIRTUAL P $y'``
// Implementation q4!\^HwQ
protected: vY.VFEP/
HICON m_hIcon; dJrUcZBr
// Generated message map functions CflyK@
//{{AFX_MSG(CCaptureDlg) 6Ktq7'Z@
virtual BOOL OnInitDialog(); +{;wOQ.
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); ^%Y-~yB-
afx_msg void OnPaint(); *a|575e< z
afx_msg HCURSOR OnQueryDragIcon(); se>\5k
virtual void OnCancel(); pd,d"+
afx_msg void OnAbout(); /TB{|_HbW
afx_msg void OnBrowse(); ^A\(M%*F
afx_msg void OnChange(); |XQ_4{
//}}AFX_MSG 3
.j/D^
DECLARE_MESSAGE_MAP() RRQv<x
}; F}[!OYyg
#endif B9
?58v&
O.y ?q
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file NB^Al/V@
#include "stdafx.h" DS@Yto
#include "Capture.h" RTg\c[=w
#include "CaptureDlg.h" S^D@8<6GJ
#include <windowsx.h> hCgk78O?
#pragma comment(lib,"hook.lib") H*N{4zBB
#ifdef _DEBUG iC! 6g|]X
#define new DEBUG_NEW 'ks .TS&
#undef THIS_FILE 6q`)%"4k
static char THIS_FILE[] = __FILE__; 8n2;47 a
#endif <f.Eog
#define IDM_SHELL WM_USER+1 {=J:
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); }C["'tLX
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); EAWBgOO8iC
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; %}~(%@qB>+
class CAboutDlg : public CDialog |9FrVO$M
{ UNv!G/i-5
public: {=&({ cS
CAboutDlg(); uxKO"
// Dialog Data Z'5&N5hx
//{{AFX_DATA(CAboutDlg) s7:_!Nd@8
enum { IDD = IDD_ABOUTBOX }; y>h9:q|
//}}AFX_DATA pNQ7uy
// ClassWizard generated virtual function overrides |Go$z3bx
//{{AFX_VIRTUAL(CAboutDlg) aTH$+f1?Q
protected: !RwhVaSh
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 2g_mQT
//}}AFX_VIRTUAL 74
)G.!
// Implementation Tu}EAr
protected: =\)zb '\=d
//{{AFX_MSG(CAboutDlg) };P=|t(r
//}}AFX_MSG rxy5Nrue
DECLARE_MESSAGE_MAP() >P} XCAU
}; <RC %<
K(lVAKiP]
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) ;;CNr_
{ (OwGp3g
//{{AFX_DATA_INIT(CAboutDlg) w<]-~`K
//}}AFX_DATA_INIT 1!U:M8T|
} jyyig%
b9T6JS j
void CAboutDlg::DoDataExchange(CDataExchange* pDX) H)&iFq
{ _):@C:6
CDialog::DoDataExchange(pDX); GCw4sb4~w
//{{AFX_DATA_MAP(CAboutDlg) 0SIUp/.
//}}AFX_DATA_MAP G[_Z|Xi1
} OfA+|xT&
VhMVoW
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) #
&5.
//{{AFX_MSG_MAP(CAboutDlg) \3K7)o^
// No message handlers GA[bo)"
//}}AFX_MSG_MAP c3#eL
END_MESSAGE_MAP() &0G9v
EX, {1^h
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) -,g.39u
: CDialog(CCaptureDlg::IDD, pParent) .YB/7-%M[
{ .rwW5"RPq
//{{AFX_DATA_INIT(CCaptureDlg) Mty[)+se
m_bControl = FALSE; ; 5[W*,7s
m_bAlt = FALSE; lMg#zT!?
m_bShift = FALSE; $txF|Fj]^A
m_Path = _T("c:\\"); uz$p'Q
m_Number = _T("0 picture captured."); ^k^?>h
nCount=0; ~h=iZ/g_^_
bRegistered=FALSE; %WmTG }L)
bTray=FALSE; <*u^8lCA
//}}AFX_DATA_INIT @;hdZLG]`&
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 `*kl> }$
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); `e3$jy@
} JwWxM3(%t
T9kc(i'
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) 9CN'29c
{ B` +,
8
CDialog::DoDataExchange(pDX); 6
A#xFPYY{
//{{AFX_DATA_MAP(CCaptureDlg) ~mK+Q%G5
DDX_Control(pDX, IDC_KEY, m_Key); Gp)J[8j
DDX_Check(pDX, IDC_CONTROL, m_bControl); lt2MB#
DDX_Check(pDX, IDC_ALT, m_bAlt); xA-?pLt"G
DDX_Check(pDX, IDC_SHIFT, m_bShift); i!RYrae
DDX_Text(pDX, IDC_PATH, m_Path); GGhk`z
DDX_Text(pDX, IDC_NUMBER, m_Number); >O~V#1 H
//}}AFX_DATA_MAP Y2dml!QM
} <|82)hO
,jw`9a
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) *O[/-
p&7
//{{AFX_MSG_MAP(CCaptureDlg) @8A[HP
ON_WM_SYSCOMMAND() }'>mT,ytgk
ON_WM_PAINT() *W,[k&;:
ON_WM_QUERYDRAGICON() Hmx.BBz
ON_BN_CLICKED(ID_ABOUT, OnAbout) I=P<RG7j)
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) LH`2Y,E
ON_BN_CLICKED(ID_CHANGE, OnChange) nf&5oE^
//}}AFX_MSG_MAP kFyp;=d:K
END_MESSAGE_MAP() utC^wA5U~
7&%#bMnw
BOOL CCaptureDlg::OnInitDialog() R1%J6wZq
{ =43NSY
CDialog::OnInitDialog(); L8NZU*"
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); `cN8AcRHP
ASSERT(IDM_ABOUTBOX < 0xF000); vv^y
V"0Y
CMenu* pSysMenu = GetSystemMenu(FALSE); aXZi 2
if (pSysMenu != NULL) y;<}`
{ '<1Cta`
CString strAboutMenu; YH^@8
strAboutMenu.LoadString(IDS_ABOUTBOX); EQ :>]O
if (!strAboutMenu.IsEmpty()) -XwS?*O
{ %,ScGQE
pSysMenu->AppendMenu(MF_SEPARATOR); u3wd~.
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); bH'2iG
} &2q<#b
} Bm%|WQK
SetIcon(m_hIcon, TRUE); // Set big icon lq,]E/<&
SetIcon(m_hIcon, FALSE); // Set small icon %Lh+W<;
m_Key.SetCurSel(0); UK,sMKbl1
RegisterHotkey(); XAtRA1.
CMenu* pMenu=GetSystemMenu(FALSE); =9^}>u
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); QF*cdc<
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); e#3RT8u#
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); Acd@BL*
return TRUE; // return TRUE unless you set the focus to a control h5-yhG
} YmjA!n
Eelv i5
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) @>J(1{m=Gy
{ 3/]FT#l]i
if ((nID & 0xFFF0) == IDM_ABOUTBOX) y"U)&1 c%
{ BB(v,W
CAboutDlg dlgAbout; $4)L~g|
dlgAbout.DoModal(); `R.Pz _oe
} T,vh=UF%]
else Q|S>C%4?
{ BS?$eai@:9
CDialog::OnSysCommand(nID, lParam); bz~aj}"`
} [/ertB
} y}|E)
owVks-/
void CCaptureDlg::OnPaint() Yw5-:w0f
{ wrX n|aV
if (IsIconic()) }_^ vvu
{ Qc PU{#6
CPaintDC dc(this); // device context for painting y
c 8h}`
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); Tm7LaM
// Center icon in client rectangle MEp{v|1
int cxIcon = GetSystemMetrics(SM_CXICON); x7`+T1IJ
int cyIcon = GetSystemMetrics(SM_CYICON); ;)P=WS:=
CRect rect; TqfL
Sm|
GetClientRect(&rect);
8Djki]
int x = (rect.Width() - cxIcon + 1) / 2; DQ[7p(
int y = (rect.Height() - cyIcon + 1) / 2; d&f!\n_~
// Draw the icon 3?L[ohKH?:
dc.DrawIcon(x, y, m_hIcon); vX}w_Jj>
} <8Nr;96IA
else 8pftc) k
{
_VmXs&4
CDialog::OnPaint(); bQwG"N
} E'(nJ
} ZU+_nWnl
p|dn&<kd
HCURSOR CCaptureDlg::OnQueryDragIcon() *rHz/& ,
{ _9p79S<+
return (HCURSOR) m_hIcon; d"Wuu1tEY
} NuUiW*|`7
z1^fG)
void CCaptureDlg::OnCancel() ,tg(aL
{ HJ0;BD.]
if(bTray) 6%>'n?
DeleteIcon(); 6?C';1
CDialog::OnCancel(); dG]B-(WTC
} ?K:.Pa
c=9A d
void CCaptureDlg::OnAbout()
&1&OXm$
{ M V!d*\
CAboutDlg dlg; e5n]@mu%
dlg.DoModal(); bqp^\yu-E
} $8AW
$|3zsi2
void CCaptureDlg::OnBrowse() 84WcaH
{ 6-)WXJ@V
CString str; TJZ~Rpq
BROWSEINFO bi; kS9;Tj cx
char name[MAX_PATH]; Fu5Y<*x
ZeroMemory(&bi,sizeof(BROWSEINFO)); T]zD+/=
bi.hwndOwner=GetSafeHwnd(); Y Q.Xl_
bi.pszDisplayName=name; lz36;Fp
bi.lpszTitle="Select folder"; 8~s0%%{,M
bi.ulFlags=BIF_RETURNONLYFSDIRS; cL;%2TMk
LPITEMIDLIST idl=SHBrowseForFolder(&bi); HX}B#T
if(idl==NULL) /93z3o7D>
return; gH\>",[
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); 748:*
(O
str.ReleaseBuffer(); HpfZgkC+
m_Path=str; H)"]I3
if(str.GetAt(str.GetLength()-1)!='\\') xa<KF
m_Path+="\\"; O"\_%=X9
UpdateData(FALSE); bGK*1FlH
} k<+Sj
h$
d
ePk}Sn
void CCaptureDlg::SaveBmp() YZSQOLN{
{ Ldv,(ZV,<
CDC dc; o$+R
dc.CreateDC("DISPLAY",NULL,NULL,NULL); -1v9
CBitmap bm; r Dlu&
int Width=GetSystemMetrics(SM_CXSCREEN); )z18:C3
int Height=GetSystemMetrics(SM_CYSCREEN); m{X{h4t
bm.CreateCompatibleBitmap(&dc,Width,Height); [6JDS;MIN
CDC tdc; 7
@}`1>97
tdc.CreateCompatibleDC(&dc); q9j~|GE|
CBitmap*pOld=tdc.SelectObject(&bm); Dykh|"
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); f5b|,JJ
tdc.SelectObject(pOld); I2*(v%.-
BITMAP btm; {f)aFGp
bm.GetBitmap(&btm); Kl%[f jI)
DWORD size=btm.bmWidthBytes*btm.bmHeight; wCR! bZ w
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); ecoI-@CAI
BITMAPINFOHEADER bih; 8 sc2r
bih.biBitCount=btm.bmBitsPixel; H@$K/
bih.biClrImportant=0; Q#Zazvk
bih.biClrUsed=0; 8#Z)qQWi_t
bih.biCompression=0;
^v cnDi
bih.biHeight=btm.bmHeight; GA[D@Wy
bih.biPlanes=1; UIU:^g0
bih.biSize=sizeof(BITMAPINFOHEADER); /HhA2 (g%
bih.biSizeImage=size; +_cigxpTc
bih.biWidth=btm.bmWidth; &|ne!wu
bih.biXPelsPerMeter=0; h9<PP2.(
bih.biYPelsPerMeter=0; <PuY"-`/Oc
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); &y=OZ
!M
static int filecount=0; 3%1wQXr0
CString name; t=@d`s:R2
name.Format("pict%04d.bmp",filecount++); kc P ZIP:
name=m_Path+name; W)/f5[L
BITMAPFILEHEADER bfh; 8~R.iqLoX
bfh.bfReserved1=bfh.bfReserved2=0; p#]9^oA
bfh.bfType=((WORD)('M'<< 8)|'B'); <3@nv%
bfh.bfSize=54+size; L/-SWid)
bfh.bfOffBits=54; ol/@)k^s>
CFile bf; nAl
\9#M
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ )$9wKk\F
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); .d^8?vo
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); 7qOkv1.}0
bf.WriteHuge(lpData,size); _BerHoQd
bf.Close(); gWa0x-
nCount++; jy5[K.
} %H"
GlobalFreePtr(lpData); 5CN=a2&
if(nCount==1) Oy=0Hsh@x
m_Number.Format("%d picture captured.",nCount); iJOG"gI&
else f>C+ l(
m_Number.Format("%d pictures captured.",nCount); ]w;t0Bk
UpdateData(FALSE); 50-7L,
} gL&w:_
Tc||96%2^
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) vnQFq
{ f~a
7E;y
if(pMsg -> message == WM_KEYDOWN) e.DN,rhqI
{ #I0FWZ>W
if(pMsg -> wParam == VK_ESCAPE) ,
otXjz
return TRUE; Ji9o0Y R
if(pMsg -> wParam == VK_RETURN) $fD%18
return TRUE; L%5y@b{AR
} U!o
return CDialog::PreTranslateMessage(pMsg);
f&^}yqmuE
} 3MHpP5C
z8}QXXa
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) \9#f:8Q
{ +[uh);vD`G
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ 1
Vt,5o5
SaveBmp(); >h#juO"
return FALSE; yLfyLyO L
} E Zf|>^N
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ 9D=X3{be#
CMenu pop; |mn} wNUN]
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); ri59LY y=
CMenu*pMenu=pop.GetSubMenu(0); ">t^jt{
pMenu->SetDefaultItem(ID_EXITICON); uchQv]VB
CPoint pt; T3
ie-G@<
GetCursorPos(&pt); UV}:3c6 ZX
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); :M{
)&{D
if(id==ID_EXITICON) HP[B%
DeleteIcon(); {-m e;ayk
else if(id==ID_EXIT) exiu;\+j
OnCancel(); SUMfebW5
return FALSE; {[Ri:^nHgL
} T?!SEblP]
LRESULT res= CDialog::WindowProc(message, wParam, lParam); "'Fvt-<^S7
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) IO8 @u;&
AddIcon(); :KX*j$5U
return res; &(,&mE
} lg$aRqI29
qtZzJ>Y
void CCaptureDlg::AddIcon() M$ieM[_T
{ |&MoQxw@
NOTIFYICONDATA data; TK'
5NM+4
data.cbSize=sizeof(NOTIFYICONDATA); (VN'1a (
CString tip; oz{X"jfu
tip.LoadString(IDS_ICONTIP); ~Uv#)
data.hIcon=GetIcon(0); y4p"LD5%^
data.hWnd=GetSafeHwnd(); 44P [P{y
strcpy(data.szTip,tip); n5A|Zjk;
data.uCallbackMessage=IDM_SHELL; M=;csazN
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; v*GS>S
data.uID=98; @aUNyyVP
Shell_NotifyIcon(NIM_ADD,&data); F1$XUos9
ShowWindow(SW_HIDE); ,WOCG2h
bTray=TRUE; {{P 3Z[
} !=.y[Db=
eza"<uBr
void CCaptureDlg::DeleteIcon() YzZj=]\`b
{ -th.(eAx
NOTIFYICONDATA data; CckfoJ 9
data.cbSize=sizeof(NOTIFYICONDATA); b~>@x{
data.hWnd=GetSafeHwnd(); Z.@n7G
data.uID=98; LXby(|<j
Shell_NotifyIcon(NIM_DELETE,&data); L9Zz-Dr s
ShowWindow(SW_SHOW); =GP L>a&
SetForegroundWindow(); wAi7jCY%OY
ShowWindow(SW_SHOWNORMAL); (&Q!5{$W
bTray=FALSE; y,&[OrCm^\
} &4WA/'>R
}15&<s
void CCaptureDlg::OnChange() ~$4(|Fq/
{ ^vG<Ma.yk
RegisterHotkey(); C7m/<
} v ,h"u
JP\jhkn
BOOL CCaptureDlg::RegisterHotkey() dPpQCxf
{ GR*sk#{
UpdateData(); b&h'>(
UCHAR mask=0; ]=-=D9ZS3
UCHAR key=0; @(6i 1Iwu9
if(m_bControl) a6z0p%sIZ
mask|=4; {e2ZW]
if(m_bAlt) MNe/H\
mask|=2; yc7b%T*Y
if(m_bShift) BWYv.&