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:
`9b7>Nn<
I2nhqJy^ 一、实现方法
aUtnR<6 uF3qD|I\ 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:
t0T"@t#c m
RO~aD!N #pragma data_seg("shareddata")
qhz]Wm P HHOOK hHook =NULL; //钩子句柄
QD>"]ap,o UINT nHookCount =0; //挂接的程序数目
>lIk9| static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
X.e7A/ClEo static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
5>\/[I/! static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
[E
] E static int KeyCount =0;
w&KK3*="" static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
n .RhxgC< #pragma data_seg()
w:<W.7y?0 _}En/V_ 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。
A`}rqhU.{- 4BKI-;v$ 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:
\<)9?M :
i|m3mcI%2 BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
6Avw-}.7> cKey,UCHAR cMask)
E!P yL>){ {
7[}xP#Z BOOL bAdded=FALSE;
KPj\-g'A for(int index=0;index<MAX_KEY;index++){
L#
2+z@g if(hCallWnd[index]==0){
7fba-7-P hCallWnd[index]=hWnd;
w2'f/ HotKey[index]=cKey;
CtS l HotKeyMask[index]=cMask;
hBX!iukT|{ bAdded=TRUE;
Pw61_ZZ4B\ KeyCount++;
@ >U-t{W break;
V:c;-)( }
"PpN0Rr }
c. 2).Jt, return bAdded;
&@yo;kB }
*=*AAF //删除热键
k|H: BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
9c6gkt9eB {
#c66) BOOL bRemoved=FALSE;
|YY_^C`"- for(int index=0;index<MAX_KEY;index++){
&E=>Hj(dTG if(hCallWnd[index]==hWnd){
UaB @ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
8{X"h# hCallWnd[index]=NULL;
3^6
d]f HotKey[index]=0;
9B7^lR HotKeyMask[index]=0;
SV~~Q_U9 bRemoved=TRUE;
PJL=$gBgKk KeyCount--;
S :<Nc{C break;
Gnq?"</ }
!_cg\KU# }
{R?U.eJW }
_ "VkGG return bRemoved;
e!=kWc }
F
70R1OYU fV'ZsJ N $H9%J DLL中的钩子函数如下:
J:zU,IIJ Q{5kxw1ZF LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
3skC$mpJHw {
,~]tg77 BOOL bProcessed=FALSE;
<
RH UH)I if(HC_ACTION==nCode)
57&b:0`p {
u;/ Vyu if((lParam&0xc0000000)==0xc0000000){// 有键松开
VeQg-#&I switch(wParam)
N<-gI9_ {
j4R(B case VK_MENU:
l.NEkAYPmH MaskBits&=~ALTBIT;
xM&Wgei]10 break;
8Hn|cf0 case VK_CONTROL:
#kaY0M MaskBits&=~CTRLBIT;
[.uG5%fa break;
K8UP,f2 case VK_SHIFT:
#/<&*Pu5t MaskBits&=~SHIFTBIT;
U5.LDv; break;
<y NM%P<Oy default: //judge the key and send message
V13N}] break;
70Wgg ty }
?1K#dC52# for(int index=0;index<MAX_KEY;index++){
5jgR4a*_v if(hCallWnd[index]==NULL)
#nPQ!NB/ continue;
&b%zQ4%d-` if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
PC-"gi=h {
+2&@x=xy SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
I
,z3xU bProcessed=TRUE;
`yH<E+ }
ne_TIwf w- }
t~#zMUfac }
yU-e3O7L else if((lParam&0xc000ffff)==1){ //有键按下
sWc*5Rt switch(wParam)
/! "|_W|n {
"Pu!dJ5[] case VK_MENU:
f>UXD MaskBits|=ALTBIT;
Xy$3VU* break;
+>{Y.`a;Jo case VK_CONTROL:
m0;CH/D0 MaskBits|=CTRLBIT;
P;ci9vk break;
uJC~LC N case VK_SHIFT:
c_'OPJ MaskBits|=SHIFTBIT;
\Ani}qQ%| break;
J:V6 default: //judge the key and send message
fj;y}t1E] break;
n O\"HLM }
4;0lvDD for(int index=0;index<MAX_KEY;index++){
5n9B?T8C if(hCallWnd[index]==NULL)
P'Ux%Q+B> continue;
Hn%xDJ' if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
(2^gVz=j {
2[O&NdP\Zk SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
~l]ve,W[ bProcessed=TRUE;
{pnS Q }
,P70Jb }
jw^<IMAG\8 }
hp 5|@ if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
2Q/4bJpd for(int index=0;index<MAX_KEY;index++){
mUdOX7$c> if(hCallWnd[index]==NULL)
0"\H^ continue;
pgQV /6 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
4GY[7^ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
Rld!,t //lParam的意义可看MSDN中WM_KEYDOWN部分
y)W@{@{kl }
;;C?{ }
[f1
(`< }
oPXkYW return CallNextHookEx( hHook, nCode, wParam, lParam );
o:3dfO%nuM }
4,CXJ2 }dWq=)* 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:
LE9(fe) fe ToXki, BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
MbZJ;,e? BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
V@cM |( #t:S.A@ 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:
$m].8? HUv/ ~^< LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
C9n?@D;S {
kt["m. if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
M42Ssn) {
U |Jo{(Y //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
@Z\,q's SaveBmp();
][9%Kl*%@p return FALSE;
DRp~jW(\y }
1DE<rKI …… //其它处理及默认处理
2.l Z:VLN }
qB0E_y)a O4cr*MCb5 d4>Z8FF|1B 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
jv%kOovj
19Mu61 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
{=!b/l;@ QLEKsX7p> 二、编程步骤
t>urc :U3kW8;UMP 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
qln3 k` |"/8XA 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
%_RQx2 x7:s]<kE 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
C)@y5. G; gcPTLh[^Er 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
TarIPp ,9}h 5、 添加代码,编译运行程序。
j.w@(<=x aI6$? wus 三、程序代码
UEM(@zD] GqaDL3Niqs ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
_wkVwPr #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
s:#V(<J #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
/%}*Xh #if _MSC_VER > 1000
u09:Z{tL;@ #pragma once
Q<^Tl(`/N? #endif // _MSC_VER > 1000
nrxo&9[@n #ifndef __AFXWIN_H__
`\gnl' #error include 'stdafx.h' before including this file for PCH
Ma.`A #endif
[E!oQVY #include "resource.h" // main symbols
K9$>Yxe| class CHookApp : public CWinApp
\?0&0;5 {
Tx|Ir+f6L public:
9`I _Et CHookApp();
+*ZO&yJQ^< // Overrides
6y+Kjd/D // ClassWizard generated virtual function overrides
a(kg/s //{{AFX_VIRTUAL(CHookApp)
@SJL\{_ public:
XQ9O$
~q virtual BOOL InitInstance();
)}D'<^=#T virtual int ExitInstance();
_aFl_\3> //}}AFX_VIRTUAL
:km61 //{{AFX_MSG(CHookApp)
DcoX+8 7 // NOTE - the ClassWizard will add and remove member functions here.
FbaEB RM // DO NOT EDIT what you see in these blocks of generated code !
}=gx# //}}AFX_MSG
\O*-#} ~\ DECLARE_MESSAGE_MAP()
P7nc7a };
-(bXSBs# LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
AsAT_yv# BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
4wa`<H&S5 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
QDs^Ije BOOL InitHotkey();
Z:,U]Z( BOOL UnInit();
F(k.,0Nc #endif
!MYSfPdS hAYTj0GZ //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
T (OW #include "stdafx.h"
v,
n$^R #include "hook.h"
'Jt]7;04p #include <windowsx.h>
*c~T@m~DR #ifdef _DEBUG
!46RGU:I #define new DEBUG_NEW
{ /K.3 #undef THIS_FILE
WN{ 9 static char THIS_FILE[] = __FILE__;
cik!GA #endif
Pz>s6 [ob #define MAX_KEY 100
!c}O5TI|# #define CTRLBIT 0x04
hd>aZ"nm1 #define ALTBIT 0x02
_/uFsYC #define SHIFTBIT 0x01
K/tRe/t} #pragma data_seg("shareddata")
u<3HQ.:; HHOOK hHook =NULL;
OMWbZ>jB UINT nHookCount =0;
vwjPmOjhS static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
rai3<_W< static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
ROg(U8
N static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
{["\.ZS| static int KeyCount =0;
?u/@PR\D static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
pP*zq"o #pragma data_seg()
dx;Ysn0- HINSTANCE hins;
o.w\l\ void VerifyWindow();
_hRcc"MS` BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
f!oT65Vmi //{{AFX_MSG_MAP(CHookApp)
%+8F'&X // NOTE - the ClassWizard will add and remove mapping macros here.
[`{Z}q& // DO NOT EDIT what you see in these blocks of generated code!
|uqf:V`z: //}}AFX_MSG_MAP
5mJ JU END_MESSAGE_MAP()
GNXHM*~ 'oF%,4 !Y CHookApp::CHookApp()
As 3.Q(#Z {
l)Pu2!Ic // TODO: add construction code here,
1<BX]-/tP // Place all significant initialization in InitInstance
&<wuJ%'>)Z }
lsNrAA%m ;3d"wW]}7K CHookApp theApp;
]l1\? I LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
a:"Uh** {
ofPHmh` BOOL bProcessed=FALSE;
UUzYbuS>&l if(HC_ACTION==nCode)
ap&?r`Tu {
i=i(%yQ% if((lParam&0xc0000000)==0xc0000000){// Key up
v@Gl|29_ switch(wParam)
J)`-+}7$v {
f|h|q_<; case VK_MENU:
~%^
tB MaskBits&=~ALTBIT;
bu:S:` break;
rqdE6y+^ case VK_CONTROL:
kSR\RuY* MaskBits&=~CTRLBIT;
gZLP\_CL break;
IhA5Wt0j case VK_SHIFT:
:p]'32FA! MaskBits&=~SHIFTBIT;
gCioq. break;
lV1G<qP default: //judge the key and send message
[`^a=:* break;
MS\>DW }
} \HN&@ for(int index=0;index<MAX_KEY;index++){
IPgt|if^ if(hCallWnd[index]==NULL)
.QA }u ,EN continue;
tNGp\~ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
NdL,F;^ {
62 O.?Ij SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
7B!xT2{T bProcessed=TRUE;
.2%zC & ; }
jUSmqm' }
Y( 3Bp\6 }
99:C"`E{ else if((lParam&0xc000ffff)==1){ //Key down
n` xR5!de switch(wParam)
&d"G/6 {
k p<OJy case VK_MENU:
3[O=xXB MaskBits|=ALTBIT;
pPc TrN' break;
|/09<F:L[ case VK_CONTROL:
x$1]M DAGb MaskBits|=CTRLBIT;
fb{``,nO break;
RLbKD> case VK_SHIFT:
X:6c}p%,! MaskBits|=SHIFTBIT;
`Jzp Sw break;
W_kHj}dj,p default: //judge the key and send message
kPVO?uO break;
LL2=& VK }
lrv3fPIW for(int index=0;index<MAX_KEY;index++)
-amBB7g {
A9wh(P0\ if(hCallWnd[index]==NULL)
!q9+9 *6 continue;
2
dAB-d:k if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
5[A@gw0u {
~ vJ,`? SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
W7 Cc bProcessed=TRUE;
c2&q*]?l; }
<)u`~$n2 }
5qr'.m }
*Eo?k<:zPm if(!bProcessed){
Pb?$t for(int index=0;index<MAX_KEY;index++){
oJ4AIQjB if(hCallWnd[index]==NULL)
/4g1zrU continue;
l y(>8F if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
TNGU6j}oq SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
(CsD*U`h }
qMLD)rL }
$4/yZaVb }
MhR:c7, return CallNextHookEx( hHook, nCode, wParam, lParam );
*.!Np9l,V }
Fxm$9(Y 1UE6 4Kl:S BOOL InitHotkey()
dYL"h.x {
qNYN-f~@, if(hHook!=NULL){
4"(<X nHookCount++;
S"xKL{5 return TRUE;
R:#k%}W }
+R|z{M)* else
;
mZW{j hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
!4^C #{$ if(hHook!=NULL)
m^bNuo nHookCount++;
VzY8rI return (hHook!=NULL);
K?BOvDW"` }
',:*f8Jk BOOL UnInit()
`[W[H(AjQ {
P*I}yPeb if(nHookCount>1){
EL(nDv nHookCount--;
1IZ3=6 return TRUE;
MBqt&_?K }
JwAYG5W BOOL unhooked = UnhookWindowsHookEx(hHook);
f}x.jxY? if(unhooked==TRUE){
H^s<{E0< nHookCount=0;
n
p\TlUc hHook=NULL;
paKSr|O }
k}
| return unhooked;
#MRMNL@ }
%`&2+\` ,M^ P! BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
l]8D7(g {
m+lvl BOOL bAdded=FALSE;
UE$UR#T'w for(int index=0;index<MAX_KEY;index++){
~c %hWt if(hCallWnd[index]==0){
kic/*v\6@ hCallWnd[index]=hWnd;
YgUvOyaQXf HotKey[index]=cKey;
5u*-L_ HotKeyMask[index]=cMask;
'H
\9:7 bAdded=TRUE;
4:r!|PJn{G KeyCount++;
HbXPok break;
|Z=^`J }
qI~xlW
}
Tl2C^j return bAdded;
&(xH$htv1 }
i 7x7xtq L{h%f4Du# BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
vTlwRG=5 {
L#+q]j+ BOOL bRemoved=FALSE;
0tEYU:Qu for(int index=0;index<MAX_KEY;index++){
my4giC2a if(hCallWnd[index]==hWnd){
_OuWB" if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
Kfh| hCallWnd[index]=NULL;
\}p6v } HotKey[index]=0;
( 5tvfz% HotKeyMask[index]=0;
G0^2Wk[ bRemoved=TRUE;
6~1|qEe6I KeyCount--;
o1FF"tLkN break;
y0'Rmk, }
PYM(Xz$ }
vK_?<> }
K }Vv4x1U return bRemoved;
1:f9J }
CS==A57I S$Q8>u6Wk void VerifyWindow()
v?&
-xH-S {
763v for(int i=0;i<MAX_KEY;i++){
:9$F'd\ if(hCallWnd
!=NULL){ Q4f/Z
if(!IsWindow(hCallWnd)){ Hhari!RXC
hCallWnd=NULL; 2@%$;.
HotKey=0; n~A%q,DmF
HotKeyMask=0; x)rM/Kq
KeyCount--; {j:hod@-:5
} W!?7D0q
} bpKZ3}U
} L"{JRbh[
} ;)!Sp:mHX
]8f ms(
BOOL CHookApp::InitInstance() +(C6#R<LI
{ B,TB3
{
AFX_MANAGE_STATE(AfxGetStaticModuleState()); WXmn1^"kK}
hins=AfxGetInstanceHandle(); vfq%H(
InitHotkey(); HA2k[F@3^
return CWinApp::InitInstance(); 34d3g
} l,,>& F
pBETA'fY
int CHookApp::ExitInstance() JWMpPzs
{ q.2ykL
VerifyWindow(); 3>R#zJf
UnInit(); %=/)
return CWinApp::ExitInstance(); ~Uxsn@nLr
} uoXAQ6k
L7VG`h;
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file $ep.-I>
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) {|1Y:&M?
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ [$ejp>'Ud
#if _MSC_VER > 1000 :1iqT)&|8F
#pragma once h\PHKC2
#endif // _MSC_VER > 1000 J,AR5@)1
_c,'>aH=
class CCaptureDlg : public CDialog +=.W<b
{ Kwg4sr5"D
// Construction n(L\||#+
public: ,=|ZB4HA
BOOL bTray; + j W1V}h
BOOL bRegistered; sK7+Q
BOOL RegisterHotkey(); A` AaTP
UCHAR cKey; =9"W@n[>W
UCHAR cMask; hNd}Y'%V
void DeleteIcon(); lhw()u
void AddIcon(); wAxrc+
UINT nCount; /yZQ\ {=
void SaveBmp(); VxXzAeM
CCaptureDlg(CWnd* pParent = NULL); // standard constructor ]Yvga!S"C
// Dialog Data H<}^'#"p
//{{AFX_DATA(CCaptureDlg) ;uW}`Q<
enum { IDD = IDD_CAPTURE_DIALOG }; tPGJ<30
CComboBox m_Key; \l.-eu'O
BOOL m_bControl; ^",ACWF4Sk
BOOL m_bAlt; |j VM&R2s
BOOL m_bShift; 82]vkU
CString m_Path; k5C@>J
CString m_Number; 1f8GW
//}}AFX_DATA hWT[L.>k
// ClassWizard generated virtual function overrides A _XhuQB;d
//{{AFX_VIRTUAL(CCaptureDlg) MHsc+gQiz
public: iTV) NsC}
virtual BOOL PreTranslateMessage(MSG* pMsg); $pFo Rv
protected: Q~j`YmR|
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support XLH+C ]pfr
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); vsr[ur[eP
//}}AFX_VIRTUAL tc!wLnhG
// Implementation m/qbRk68s
protected: /Ne<V2AX
HICON m_hIcon; W@Lu;g.Yc
// Generated message map functions [fKUyIY_
//{{AFX_MSG(CCaptureDlg) !V,{_(LT
virtual BOOL OnInitDialog(); h<SQL97N
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); Ko/ I#)
afx_msg void OnPaint(); ]sGHG^I6
afx_msg HCURSOR OnQueryDragIcon(); K%X^n>O7C
virtual void OnCancel(); D*YM[sN`
afx_msg void OnAbout(); 8kIR y
afx_msg void OnBrowse(); YI.w-K\
afx_msg void OnChange(); i7utKj*57
//}}AFX_MSG LbZ:&/t^y8
DECLARE_MESSAGE_MAP() SJ};TEA
}; ?1[\!
#endif ,ML[Wr'2
p$x{yz3
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file " $ew~;z
#include "stdafx.h" Iz{R}#8CZ
#include "Capture.h" (<Th=Fns?
#include "CaptureDlg.h" =pk)3<GwF
#include <windowsx.h> <@Fy5k-%.
#pragma comment(lib,"hook.lib") N]<!j$pOz
#ifdef _DEBUG D.1J_Y=9
#define new DEBUG_NEW {!K-E9_,S
#undef THIS_FILE HCa
static char THIS_FILE[] = __FILE__; wu4NLgkE
#endif NSFs\a@1
#define IDM_SHELL WM_USER+1 {M?vBgR\B
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); .^m>AKC0cX
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); ryc& n5
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; "n=vN<8(o
class CAboutDlg : public CDialog V2<?ol
{ \#>T~.Y7K
public: /g$G_}
CAboutDlg(); -#Z
bR
// Dialog Data `St.+6^J
//{{AFX_DATA(CAboutDlg) C>[fB|^
enum { IDD = IDD_ABOUTBOX }; .]9c /
//}}AFX_DATA T1r3=Y4
// ClassWizard generated virtual function overrides jh.@-
//{{AFX_VIRTUAL(CAboutDlg) kee|42E
protected: f7 'q-
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support D Kw*~0
//}}AFX_VIRTUAL j$7Xs"
// Implementation F|HJH"2*&q
protected: 6O22P?v
//{{AFX_MSG(CAboutDlg) \J6hI\/4^
//}}AFX_MSG |/|
DECLARE_MESSAGE_MAP() `WOYoec
}; yj$TPe_BW
,.o<no
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) bI y sl
{ ((^sDE6(
//{{AFX_DATA_INIT(CAboutDlg) JMS(9>+TA
//}}AFX_DATA_INIT s-7RW
} N*@aDM07
d.2mT?`#
void CAboutDlg::DoDataExchange(CDataExchange* pDX) v i)%$~
{ PccB]
CDialog::DoDataExchange(pDX); .?>5-od2
//{{AFX_DATA_MAP(CAboutDlg) snt(IJQ
//}}AFX_DATA_MAP NcAp_q?
4
} k3t78Qg
~Wp Gf,
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) n3`&zY
//{{AFX_MSG_MAP(CAboutDlg) SgEBh
// No message handlers tL+OCLF;
//}}AFX_MSG_MAP Fbp{,V@F2
END_MESSAGE_MAP() 07/L}b`P
>2?aZ`r+
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) !8@*F
: CDialog(CCaptureDlg::IDD, pParent) a@pz*e
{ )kJH5/
//{{AFX_DATA_INIT(CCaptureDlg) 0'r%,0
m_bControl = FALSE; OGrBUP
m_bAlt = FALSE; _NcYI
m_bShift = FALSE; oiH|uIsqR
m_Path = _T("c:\\"); #DjCzz\
m_Number = _T("0 picture captured."); [,aqQ6S
nCount=0; JNFIT;L
bRegistered=FALSE; BvU"4d;x
bTray=FALSE; yt+}K)Hz
//}}AFX_DATA_INIT nCKbgM'"
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 gs
W0
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); YUdxG/~'
} NA.1QQ;e
6UE(f@
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) TFepxF
{ CVi`bO 4\
CDialog::DoDataExchange(pDX); Ce'pis
//{{AFX_DATA_MAP(CCaptureDlg) 3},Zlu
DDX_Control(pDX, IDC_KEY, m_Key); sK 2
e&
DDX_Check(pDX, IDC_CONTROL, m_bControl); 9%IlW
DDX_Check(pDX, IDC_ALT, m_bAlt); Q#Y k?Kv~
DDX_Check(pDX, IDC_SHIFT, m_bShift); jb /8?7
DDX_Text(pDX, IDC_PATH, m_Path); 4{qB X?
DDX_Text(pDX, IDC_NUMBER, m_Number); i\H+X
//}}AFX_DATA_MAP XTDE53Js&
} >bUj*#<
Y?#i{ixX6n
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) [ "xn5lE
//{{AFX_MSG_MAP(CCaptureDlg) <fdPLw;@e4
ON_WM_SYSCOMMAND() {$M;H+Foh
ON_WM_PAINT() )n=ARDd^e
ON_WM_QUERYDRAGICON() V5D`eX9
ON_BN_CLICKED(ID_ABOUT, OnAbout) LjdYsai-
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) kHJ96G
ON_BN_CLICKED(ID_CHANGE, OnChange) M"_FrIO
//}}AFX_MSG_MAP *wV[TKaN
END_MESSAGE_MAP() )nu~9km3
<TNk?df7
BOOL CCaptureDlg::OnInitDialog() ^\:2}4Uj_
{ jvzBh-!
CDialog::OnInitDialog(); * \HRw +cL
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); o;[bJ
Z\^x
ASSERT(IDM_ABOUTBOX < 0xF000); [k]|Qink
CMenu* pSysMenu = GetSystemMenu(FALSE); +^6}
if (pSysMenu != NULL) n$2 RCQ
{ \nqo%5XL
CString strAboutMenu; &gc`<kLu
strAboutMenu.LoadString(IDS_ABOUTBOX); Vdn.)ir~P
if (!strAboutMenu.IsEmpty()) 9zgNjjCl]
{ Z v0C@r
pSysMenu->AppendMenu(MF_SEPARATOR); h<+|x7u
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); L<(VG{)Z
} JLb6C52
} x:t<ZG&Xwg
SetIcon(m_hIcon, TRUE); // Set big icon Ewo*yY>
SetIcon(m_hIcon, FALSE); // Set small icon (3*UPZv
m_Key.SetCurSel(0); +ySY>`1k~
RegisterHotkey(); yoqa@ V
CMenu* pMenu=GetSystemMenu(FALSE); ODf4+& u
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); *(cU]NUH_
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); fn9#>~vrD
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); gUB{Bh($Y
return TRUE; // return TRUE unless you set the focus to a control &B!%fd.'
} w5]l1}rl
J -Qh/d%]
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) S:Tm23pe
{ ' eO/PnYW
if ((nID & 0xFFF0) == IDM_ABOUTBOX) CsS p=(
{ sa1mC
CAboutDlg dlgAbout; v@G4G*x\
dlgAbout.DoModal(); |
W#~F&{]
} OYf{?-QD
else 8o)L,{yl
{ Xz;b,C&*t
CDialog::OnSysCommand(nID, lParam); .F0]6#(
} >Csbjf6
} |Vx~fK S\
-O&"|
void CCaptureDlg::OnPaint() z^sST
{ `HUf v@5
if (IsIconic()) !v!N>f4S$
{ iUr xJh
CPaintDC dc(this); // device context for painting dDKqq(9(`
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); 8U.$FMx :
// Center icon in client rectangle za,2r^
int cxIcon = GetSystemMetrics(SM_CXICON); Nm8w/Q5D`
int cyIcon = GetSystemMetrics(SM_CYICON); 0^]t"z5f0
CRect rect; w1B<0'#
GetClientRect(&rect); jeDlH6X'
int x = (rect.Width() - cxIcon + 1) / 2; F>:%Cyo0!
int y = (rect.Height() - cyIcon + 1) / 2; *kaJ*Ti-/
// Draw the icon %OI4a5V*l
dc.DrawIcon(x, y, m_hIcon); BV9 *s
}
qtSs)n
else 9y"TDo
{ p
q-!WQ
CDialog::OnPaint(); lSc,AOXp
} w)S; J,Hv
} /BzA(Ic/
(Cj,\r
HCURSOR CCaptureDlg::OnQueryDragIcon() 6MrKi|'X@
{ |}qjqtZ
return (HCURSOR) m_hIcon; a@|.;#FF
} \;
bWh
dE>v\0 3!8
void CCaptureDlg::OnCancel() r`]7S_t5T
{ - s|t^
if(bTray) ~eo^`4O{{
DeleteIcon(); "d?f:x3v^
CDialog::OnCancel(); hU,$|_WDy
} 3 .)_uo0;o
v7@H\x*
void CCaptureDlg::OnAbout() Qp&?L"U)2
{ !b%,'f y)
CAboutDlg dlg; ~t9$IB
dlg.DoModal(); y<r44a_!
} o5#,\Y[ g
9kd.j@C
void CCaptureDlg::OnBrowse() < EXWWrm
{ ",ad7Y7i
CString str; yQS04Bl]
BROWSEINFO bi; =mJF_Ri
char name[MAX_PATH]; DS
1JF
ZeroMemory(&bi,sizeof(BROWSEINFO)); EW5]!%
bi.hwndOwner=GetSafeHwnd(); x_ySf!ih
bi.pszDisplayName=name; k
E_ky)
bi.lpszTitle="Select folder"; ry,}F@P&
bi.ulFlags=BIF_RETURNONLYFSDIRS; sM9-0A
LPITEMIDLIST idl=SHBrowseForFolder(&bi); /:6Q.onmLn
if(idl==NULL) zZYHc?Z
return; -ddOh<U>
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); s1@@o#r
str.ReleaseBuffer(); ew"m!F#
m_Path=str; B_@7IbB
if(str.GetAt(str.GetLength()-1)!='\\') -eYL*Pa
m_Path+="\\"; ?W<cB`J
UpdateData(FALSE); Y?.gfEXSQo
} >'0lw+a
g!`BXmW
void CCaptureDlg::SaveBmp() Q}z{AZ
{ 0(vdkC4\A
CDC dc; X0x_+b?
_
dc.CreateDC("DISPLAY",NULL,NULL,NULL); I:/4t^%
CBitmap bm; -CElk[u
int Width=GetSystemMetrics(SM_CXSCREEN); ZW2s[p r
int Height=GetSystemMetrics(SM_CYSCREEN); [5LMt*Y
bm.CreateCompatibleBitmap(&dc,Width,Height); aZ/yCS7
CDC tdc; Rc%PZ}es
tdc.CreateCompatibleDC(&dc); fSC.+,qk
CBitmap*pOld=tdc.SelectObject(&bm); `g8tq
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); 3It8&x:
tdc.SelectObject(pOld); %f#\i#G<k
BITMAP btm; Jh(mbD
bm.GetBitmap(&btm); -~0'a
DWORD size=btm.bmWidthBytes*btm.bmHeight; GsRt5?X/*
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); a?\ `
BITMAPINFOHEADER bih; )Jz !Ut
bih.biBitCount=btm.bmBitsPixel; /~"AG l.
bih.biClrImportant=0; @_uFX!;
bih.biClrUsed=0; `NoCH[$!+
bih.biCompression=0; +ks$UvtY
bih.biHeight=btm.bmHeight; `~KAk
bih.biPlanes=1; (77Dif0)'
bih.biSize=sizeof(BITMAPINFOHEADER); wISzT^RS
bih.biSizeImage=size; (T;1q^j
bih.biWidth=btm.bmWidth; t.u{.P\Md\
bih.biXPelsPerMeter=0; 95% :AQLV
bih.biYPelsPerMeter=0; )rS^F<C
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); _BCT.ual
static int filecount=0; t>-XT|lV
CString name; s!=!A
name.Format("pict%04d.bmp",filecount++); 3dY6;/s
name=m_Path+name; vkh;qPD
BITMAPFILEHEADER bfh; ;?#i]Bh>S
bfh.bfReserved1=bfh.bfReserved2=0; @)06\h
bfh.bfType=((WORD)('M'<< 8)|'B'); 2@4MC`&