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:
HukHZ;5
|?8wyP 一、实现方法
ZsE8eD xxYFWvi 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:
(s*}= QLn5:& #pragma data_seg("shareddata")
i*3_ivc) HHOOK hHook =NULL; //钩子句柄
TD@'0MaQ# UINT nHookCount =0; //挂接的程序数目
dbR4%;< static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
*)Y;`Yg$ static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
K4KmoGb static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
=e63>*M| static int KeyCount =0;
+oc}kv,h] static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
Wr;)3K
#pragma data_seg()
H]-nm+ _oWenF 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。
Jx_4:G @<P[z[ 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:
$JOIK9+3z# @-wAR=k7 BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
cI H`,bR cKey,UCHAR cMask)
MFVFr " {
aLr^uce] BOOL bAdded=FALSE;
jhHb[je~{4 for(int index=0;index<MAX_KEY;index++){
*GA#.$n if(hCallWnd[index]==0){
`7NgQ*g.d/ hCallWnd[index]=hWnd;
Z`[j;=[ HotKey[index]=cKey;
0xsvxH"* HotKeyMask[index]=cMask;
3x#G
SS bAdded=TRUE;
db`<E
< KeyCount++;
K_xn> break;
CZ@M~Si_ }
8`+X6iZOQ }
Sng V<J>zR return bAdded;
z-,'W` }
'Mg%G(3 //删除热键
)K}b,X`($ BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
'lWNU {
nV'B!q BOOL bRemoved=FALSE;
0GB6.Ggft for(int index=0;index<MAX_KEY;index++){
$*tuv? if(hCallWnd[index]==hWnd){
%j'lWwi if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
"l!"gc87 hCallWnd[index]=NULL;
pz(clTOD: HotKey[index]=0;
0 X@5W$x HotKeyMask[index]=0;
F"LT\7yjyG bRemoved=TRUE;
=%bc;ZUu KeyCount--;
lps break;
8`*(lKiL }
4VK5TWg }
$.`(2 }
PRs[:we~~ return bRemoved;
ar{Yq }
~j UK-E -Z:al\e<g E-r/$&D5mP DLL中的钩子函数如下:
&c A?|(7- u*"tZ+|m LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
Kl^Yq {
s4w<X}O_ BOOL bProcessed=FALSE;
Q_ $AGF if(HC_ACTION==nCode)
Ros5]5=dP {
:yv!
x if((lParam&0xc0000000)==0xc0000000){// 有键松开
RgEUTpX switch(wParam)
Drg'RR>< {
vWow^g case VK_MENU:
MjHeUf MaskBits&=~ALTBIT;
]TGJ|X break;
z\fk?Tj<ro case VK_CONTROL:
7FWf,IjcGY MaskBits&=~CTRLBIT;
{C
7= break;
]RxNSr0e case VK_SHIFT:
&:Q""e! MaskBits&=~SHIFTBIT;
1cUC>_%? break;
|%$d/<<PZ default: //judge the key and send message
l*h6JgU break;
A+?n=IHh }
O'(qeN<^w for(int index=0;index<MAX_KEY;index++){
f3nib8B' if(hCallWnd[index]==NULL)
Y~Zg^x2 continue;
])e6\) if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
i`E]gJ$ {
h$lY,7
SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
\2W( >_z bProcessed=TRUE;
rBpr1XKl, }
d8|:)7PSt }
wd u>3Ch"y }
)U8F6GIC&} else if((lParam&0xc000ffff)==1){ //有键按下
|]Ockg[ switch(wParam)
2 !{P< {
=#8J9 case VK_MENU:
\@5W&Be^ MaskBits|=ALTBIT;
$U!w#|& break;
N:=D@x~] case VK_CONTROL:
d
;ry!X MaskBits|=CTRLBIT;
e;Q~P]x break;
Lc+)#9*d case VK_SHIFT:
iTD{ MaskBits|=SHIFTBIT;
=PXNg!B}D* break;
I_v]^>Xw default: //judge the key and send message
8 #0? break;
_QCAV+K' }
iPxSVH[ for(int index=0;index<MAX_KEY;index++){
KPKby?qQ^ if(hCallWnd[index]==NULL)
<;M 6s~ continue;
&u$l2hSS if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
|IZG`3 {
)-[X^l
j SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
\}Hk`n)Aq bProcessed=TRUE;
aRfkJPPa[ }
r/8,4:rh }
ZN^9w"A }
0!xD+IA!8 if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
g~N)~]0{ for(int index=0;index<MAX_KEY;index++){
~KEnZa0 if(hCallWnd[index]==NULL)
hX_;gR&R continue;
>C@fSmnOM if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
a ipvG SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
df}B:?Ew. //lParam的意义可看MSDN中WM_KEYDOWN部分
fyT! / }
IiSO{ }
m_oBV|v{ }
852$Ui|I return CallNextHookEx( hHook, nCode, wParam, lParam );
y=-d*E }
ZO:{9vt=/ Q"%L 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:
-K+gr sb
g J>x)J}:; BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
R0 {+Xd BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
v^JyVf> :x= ZvAvo 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:
r0?`t!%V PE+N5n2Tl LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
eF!c<
Kcr {
<#sB ; if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
S =eP/
{
*9*6n\~aI //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
">NBPanJ SaveBmp();
(Z
sdj return FALSE;
l0Y(9(M@ }
0G;RMR ':5 …… //其它处理及默认处理
ai#0ZgO }
[96|xe\s 7?b'"X" Kq{9:G 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。
6<FJ`l]U9 E9QNx62 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。
7vgz=-
MZ# dEns|r 二、编程步骤
=OTwP }4\>q$8' 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
m &c8@-T Fpl<2eBg4 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
,c}Q;eYc3 H#G'q_uHH 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
PJ9JRG7j n(-XI&Kn 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
z$H
|8L znX2W0V 5、 添加代码,编译运行程序。
L<5go\!bV CQ6Z[hLWF 三、程序代码
'0z@Jevd? 8M8=uw~# ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
LR'F/.Dx #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
5=5~GX-kr #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
/tx_I(6F?| #if _MSC_VER > 1000
&&TQ0w&T #pragma once
KYd2=P6 #endif // _MSC_VER > 1000
@I#@%"AW #ifndef __AFXWIN_H__
'9H]SEw #error include 'stdafx.h' before including this file for PCH
MX6;ww #endif
Q{V|{yV^y #include "resource.h" // main symbols
T<?JL.8 g_ class CHookApp : public CWinApp
&`0heJ
5Yn {
N^CD4l public:
/3'>MRzR CHookApp();
v6TH- // Overrides
$ v$~. // ClassWizard generated virtual function overrides
[u=b[( //{{AFX_VIRTUAL(CHookApp)
-i7W|X" public:
4: 5 CnK virtual BOOL InitInstance();
315Rk!{AJ virtual int ExitInstance();
Sh}AGNE' //}}AFX_VIRTUAL
GYyP+7K4l[ //{{AFX_MSG(CHookApp)
8xZN4ck_@ // NOTE - the ClassWizard will add and remove member functions here.
lRX*\M\` // DO NOT EDIT what you see in these blocks of generated code !
&-s!ko4z //}}AFX_MSG
f
\[Z`D DECLARE_MESSAGE_MAP()
qP *$wKY, };
:1s6h%evrT LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
#*1\h=bzmW BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
i{
eDV
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
dGTAZ(1W BOOL InitHotkey();
KKl8tI\u~ BOOL UnInit();
0:Ak4L6k #endif
9^3y\@ m aZ@Ke$jD //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
Z,_yE*q #include "stdafx.h"
I(
G8cK #include "hook.h"
\{P(s: #include <windowsx.h>
X#Ajt/XQ #ifdef _DEBUG
V<?t(_Y #define new DEBUG_NEW
sq\oatMw[ #undef THIS_FILE
j^ex5A.&
& static char THIS_FILE[] = __FILE__;
x$ ?{)EY #endif
J$v0 #define MAX_KEY 100
wYOSaGyZ0I #define CTRLBIT 0x04
v.c2(w/P #define ALTBIT 0x02
}| (KI #define SHIFTBIT 0x01
KPs5? X #pragma data_seg("shareddata")
DU|0#z=*t5 HHOOK hHook =NULL;
A#f@0W: UINT nHookCount =0;
Tr-gdX ; static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
hd8:| _ static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
+}J2\!Jw static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
w-"o?;)a static int KeyCount =0;
F]0O4p~fl static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
[x'xbQLGd #pragma data_seg()
xmT(yv, HINSTANCE hins;
Ud\Jc:DG void VerifyWindow();
WpWnwQY`# BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
\:'=ccf //{{AFX_MSG_MAP(CHookApp)
U;LbP-{B // NOTE - the ClassWizard will add and remove mapping macros here.
AJI,>I,}} // DO NOT EDIT what you see in these blocks of generated code!
9=&LMjTQ //}}AFX_MSG_MAP
bH~ue5q END_MESSAGE_MAP()
~NMal]Fwx 7fgA)dU:K CHookApp::CHookApp()
wMT?p/9Blm {
OGzth$7A // TODO: add construction code here,
A|O7W|"W // Place all significant initialization in InitInstance
x{6/di }
L/_OgL]YdI Ir_K83VM CHookApp theApp;
(B}+uI{ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
r~si:?6: {
Q+U} BOOL bProcessed=FALSE;
%mAgE\y25 if(HC_ACTION==nCode)
l+*^P'0u {
u0Fu_Rtr if((lParam&0xc0000000)==0xc0000000){// Key up
pBG(%3PpW switch(wParam)
eZ(<hE> {
[2a*TI case VK_MENU:
_}vD?/$L MaskBits&=~ALTBIT;
"Rf8#\Y/< break;
2fu|X#R case VK_CONTROL:
|nk&ir6 MaskBits&=~CTRLBIT;
AL>*Vj2h/n break;
!=V>DgmW case VK_SHIFT:
-y1%c^36_J MaskBits&=~SHIFTBIT;
$21+6 break;
Rq%g5lK default: //judge the key and send message
?PO~$dUc] break;
+FP*RNM }
k^}8=,j} for(int index=0;index<MAX_KEY;index++){
XnHcU=~q if(hCallWnd[index]==NULL)
\`-/\N continue;
loZJV M if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
y<.0+YL-e+ {
4/e-E^ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
HW;,XzP= bProcessed=TRUE;
;X[mfg\ }
[k ZvBd }
6'3@/. }
w*Vf{[a' else if((lParam&0xc000ffff)==1){ //Key down
uHkL$}C switch(wParam)
%K@D{)r_^ {
G9TK)Nz case VK_MENU:
-n?}L#4%8 MaskBits|=ALTBIT;
hu%UEB break;
0C#1/o)o case VK_CONTROL:
GU8b_~Gk?
MaskBits|=CTRLBIT;
)2C_6eR break;
g>_lU
vSE case VK_SHIFT:
.cdm@_Ls MaskBits|=SHIFTBIT;
OW<i"?0 break;
k6_RJ8I default: //judge the key and send message
{w$1_GU break;
7hqa| }
%3M(!X:[ for(int index=0;index<MAX_KEY;index++)
#/Y t4n {
AF g* if(hCallWnd[index]==NULL)
vz</|s continue;
O4ciD1 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
B @H.O! {
9&q<6TZ z SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
O,>1GKw"\ bProcessed=TRUE;
ja3wXz$2 }
Z"<aS&GH }
kz\
D-b }
JEL=,0J if(!bProcessed){
DBANq\ for(int index=0;index<MAX_KEY;index++){
9->E$W if(hCallWnd[index]==NULL)
(9]`3^_,J continue;
,R5NKWo if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
*
xdS< SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
3<LG~HWST }
*G7$wW:? }
D *R F._ }
V'sp6:3*\ return CallNextHookEx( hHook, nCode, wParam, lParam );
??5qR8n. }
,'?%z>RZm 7^P!@o$v! BOOL InitHotkey()
4J
Bm|Pf( {
>Ip>x!wi if(hHook!=NULL){
Qctm"g| nHookCount++;
L!x7]g,^ return TRUE;
T%A45BE
V }
3U9]&7^ else
("<3w2Vlh hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
q$`{$RX if(hHook!=NULL)
^o}!=aMr nHookCount++;
Pf5RlpL:p return (hHook!=NULL);
O?/\hZ"&c }
i% 19|an BOOL UnInit()
n&Bolt(tO {
+h_'hz&HlS if(nHookCount>1){
Me;@/;c( nHookCount--;
fEf",{I return TRUE;
s7e)Mt }
r e.chQ6 BOOL unhooked = UnhookWindowsHookEx(hHook);
Nlemb:'eP3 if(unhooked==TRUE){
rT9<_< nHookCount=0;
uUu]JDdz hHook=NULL;
?W-J2tgss{ }
4:RL[; return unhooked;
y
Dg }
gVjI1{WTK D[ U[D BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
- ?_aYJ {
3CK4a,]Dm BOOL bAdded=FALSE;
H6X]D"Y, for(int index=0;index<MAX_KEY;index++){
dIgaw;Ch] if(hCallWnd[index]==0){
Vui5Z K hCallWnd[index]=hWnd;
teH $hd-q HotKey[index]=cKey;
FZ'|z8Dm HotKeyMask[index]=cMask;
<ek_n;R bAdded=TRUE;
*jM~VTXwt KeyCount++;
z6 2gF|Uj break;
F#>?i} }
?3~]H }
S7&w r@ return bAdded;
P -0 }
9r=@S XF(0>- BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
W8+Daw1Nr {
H)S" `j BOOL bRemoved=FALSE;
NPy{ =#k4 for(int index=0;index<MAX_KEY;index++){
y33+^ if(hCallWnd[index]==hWnd){
RO?5WJpPj if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
ZnSDq_Uk hCallWnd[index]=NULL;
3qU#Rg
;7 HotKey[index]=0;
q'~?azg: HotKeyMask[index]=0;
H~UxVQLPp bRemoved=TRUE;
Njsz= KeyCount--;
Tn2nd break;
>fRI^Q, }
Q/&H3N }
~`)`Ip }
( P|Ph return bRemoved;
9,wd,,ta }
n*~=O ' m"*j J.MX void VerifyWindow()
|fnP@k {
>ly`1t1 for(int i=0;i<MAX_KEY;i++){
M&o@~z0 if(hCallWnd
!=NULL){ aZEi|\VU
if(!IsWindow(hCallWnd)){ "Opk:;.
hCallWnd=NULL; O Z<iP
HotKey=0; }z:g}".4
HotKeyMask=0; )\#w=P
KeyCount--; 3`[f<XaL
} Sn=|Q4ZN
} -3`S;Dmn
} Q-o}Xnj*!L
} _|qJ)gD[
=c>2d.^l
BOOL CHookApp::InitInstance() 6p`AdDV
{ ;/?M&rX
AFX_MANAGE_STATE(AfxGetStaticModuleState()); 2>BWu
hins=AfxGetInstanceHandle(); )7@f{E#w
InitHotkey(); Lt>"R! "x
return CWinApp::InitInstance(); d\&{Ev9v
} LdxrS5
`F5iZWW1
int CHookApp::ExitInstance() 8sb<$M$c
{ #G2~#\
VerifyWindow(); (#x<qi,T
UnInit(); IGz92&y
return CWinApp::ExitInstance(); ;v%Fw!b032
} +k|t[N
Ks
8
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file G?D7R/0)
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) 1xN6V-qk
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ z%-Yz-G9
#if _MSC_VER > 1000 N>qOiw[
#pragma once a9S0glbwf
#endif // _MSC_VER > 1000 Pqiw[ +a$
L-z37kG^
class CCaptureDlg : public CDialog ?HwW~aO
{ 3db ,6R
// Construction Sc03vfmo"N
public: `B6~KZ
BOOL bTray; l_tr,3_w
BOOL bRegistered; \HX'^t`
BOOL RegisterHotkey(); W"
>[sn|
UCHAR cKey; ^Xv_y+
UCHAR cMask; ?blF6Kl$
void DeleteIcon(); $D{KXkrd
void AddIcon(); *Kj*| >)
UINT nCount; c\"t+/Z
void SaveBmp(); K%AbM#o<
CCaptureDlg(CWnd* pParent = NULL); // standard constructor zUX%$N+w}>
// Dialog Data ,#&\1Vxf
//{{AFX_DATA(CCaptureDlg) KwGk8$ U
enum { IDD = IDD_CAPTURE_DIALOG }; gB/4ro8
CComboBox m_Key; f P'qUN
BOOL m_bControl; #'5|$ug[
BOOL m_bAlt; ):"Z7~j=
BOOL m_bShift; umPd+5i
CString m_Path; Q;r9>E!
CString m_Number; A9Cq(L_H
//}}AFX_DATA rg Gm[SL*<
// ClassWizard generated virtual function overrides m(MPVY<X
//{{AFX_VIRTUAL(CCaptureDlg) xs+pCK |
public: `K -j
virtual BOOL PreTranslateMessage(MSG* pMsg); AX6z4G
protected: HKu? J
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support fZ8%Z
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); x'IVP[xh`A
//}}AFX_VIRTUAL 8m%+O#
// Implementation )I7~<$w
protected:
4C@ .X[r
HICON m_hIcon; 3ZdheenK9
// Generated message map functions _dOR-<
//{{AFX_MSG(CCaptureDlg) =`RogjbP
virtual BOOL OnInitDialog(); g<C_3ap/
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); {Up@\M
afx_msg void OnPaint(); TZ#(G
afx_msg HCURSOR OnQueryDragIcon(); <T] BSQk
virtual void OnCancel(); ZlaU+Y(_[
afx_msg void OnAbout(); j8Nl'"
afx_msg void OnBrowse(); wz1fx>Q
afx_msg void OnChange(); /^_~NF#
//}}AFX_MSG &5JTcMC^
DECLARE_MESSAGE_MAP() +ob<?
T
}; 9 0PF)U
#endif YrlOvXW
`PML4P[
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file }dnO7K
#include "stdafx.h" I+nKaN+8i
#include "Capture.h" +/!kL0[v
#include "CaptureDlg.h" +; /]'
#include <windowsx.h> \:>GF-Z(
#pragma comment(lib,"hook.lib") poJ7q (
#ifdef _DEBUG Bw5zh1ALC;
#define new DEBUG_NEW h)S223[
#undef THIS_FILE XLwmXi
static char THIS_FILE[] = __FILE__; IE/F =Wr
#endif <ezv
#define IDM_SHELL WM_USER+1 QuG=am?l`
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); 5/U|oZM"
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); {NmpTb
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; uZ[7[mK}n7
class CAboutDlg : public CDialog P .I<.e
{ lw/zgR#|
public: ,-!h
CAboutDlg(); 6T3uv,2
// Dialog Data fL3Px
//{{AFX_DATA(CAboutDlg) &8kc0Z@y
enum { IDD = IDD_ABOUTBOX }; 61qs`N=k
//}}AFX_DATA i%~^3/K
// ClassWizard generated virtual function overrides SePPI.n
//{{AFX_VIRTUAL(CAboutDlg) z4qw*. 5
protected: n*%o!=
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support }^T7S2_Qy
//}}AFX_VIRTUAL Zp5;=8wa;
// Implementation >lyX";X#
protected: NBLiwL37{
//{{AFX_MSG(CAboutDlg) W lDcKY
//}}AFX_MSG sZ~q|}D-
DECLARE_MESSAGE_MAP() ;Y/{q B!
}; um/2.Sn>
$U3|.4
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) E0F8FR'
{ P''5A6#5
//{{AFX_DATA_INIT(CAboutDlg) 2oY.MQD7iW
//}}AFX_DATA_INIT 4J #F;#iA
} +y%"[6c|
lrn3yDkR?
void CAboutDlg::DoDataExchange(CDataExchange* pDX) CcF$?07 i
{ c!,&]*h"k
CDialog::DoDataExchange(pDX); R^_7B(
//{{AFX_DATA_MAP(CAboutDlg) q> ;u'3}
//}}AFX_DATA_MAP Pv mmyF
} P'EPP*)q
n^} -k'l
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) fY)Dx c&ue
//{{AFX_MSG_MAP(CAboutDlg) <n8K"(sy}
// No message handlers w$ zX.;s
//}}AFX_MSG_MAP \0}!qG![AA
END_MESSAGE_MAP() kNC.^8ryz[
{VBn@^'s
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) ,`4chD
: CDialog(CCaptureDlg::IDD, pParent) i}fAjS:W
{ t r)[6o#
//{{AFX_DATA_INIT(CCaptureDlg) ,tt
.oF|
m_bControl = FALSE; 5m.{ayE
m_bAlt = FALSE; N^G
$:GC
m_bShift = FALSE; _(#HQd,i
m_Path = _T("c:\\"); hLs<g!*O
m_Number = _T("0 picture captured."); x2q6y
nCount=0; $0uh8RB
bRegistered=FALSE; RK7vR~kf<
bTray=FALSE; wjJM\BKr`
//}}AFX_DATA_INIT Z*AT &7
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 GM1z@i\5
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); }}R?pU_
} )@vhqVv?
H2f!c{t$p
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) =[N=mC
{ x,CTB
CDialog::DoDataExchange(pDX); 79DzrLu
//{{AFX_DATA_MAP(CCaptureDlg) S5Hb9m&&
DDX_Control(pDX, IDC_KEY, m_Key); kTC'`xv
DDX_Check(pDX, IDC_CONTROL, m_bControl); :K:oH}4oh
DDX_Check(pDX, IDC_ALT, m_bAlt); :htz]
DDX_Check(pDX, IDC_SHIFT, m_bShift); bc+~g>o
DDX_Text(pDX, IDC_PATH, m_Path); JbV\eE#KrC
DDX_Text(pDX, IDC_NUMBER, m_Number); &U_YDUQ'L
//}}AFX_DATA_MAP ]lT8Z-h@
} ^Y;}GeA,
7WEh'(`
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) %l4;-x<e
//{{AFX_MSG_MAP(CCaptureDlg) ^M:Y$9r_s
ON_WM_SYSCOMMAND() 6MewQ{h i
ON_WM_PAINT() {;z{U;j
ON_WM_QUERYDRAGICON() SG5GJCkc
ON_BN_CLICKED(ID_ABOUT, OnAbout) fU6O: -
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) {Xw6]d
ON_BN_CLICKED(ID_CHANGE, OnChange) {D6p?TL+
//}}AFX_MSG_MAP 9.:]eL
END_MESSAGE_MAP() &dH[lB
Su4&qY
BOOL CCaptureDlg::OnInitDialog() Aof)WKo
{ 3"*tP+H
CDialog::OnInitDialog(); fbTq?4&Q
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); )S:,q3gxJ
ASSERT(IDM_ABOUTBOX < 0xF000); eD(;Wn
CMenu* pSysMenu = GetSystemMenu(FALSE); bvay7
if (pSysMenu != NULL) O/(QLgUr
{ Z[ NO`!<
CString strAboutMenu; ;S&PLgZ
strAboutMenu.LoadString(IDS_ABOUTBOX); mp!S<m
if (!strAboutMenu.IsEmpty()) .S5%Qa [uW
{ '-,$@l#
pSysMenu->AppendMenu(MF_SEPARATOR); ^"\3dfzKM
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); 0[# zn
} _#dBcEH[
} J]!&E~Y
SetIcon(m_hIcon, TRUE); // Set big icon VW$a(G_h
SetIcon(m_hIcon, FALSE); // Set small icon Gu#Vc.e
m_Key.SetCurSel(0); O(R1D/A[
RegisterHotkey(); jkQ%b.a
CMenu* pMenu=GetSystemMenu(FALSE); y[D8r Fw
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); f:\)oIW9Kk
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND);
46^9O
5J
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); >U~{WM$"Y
return TRUE; // return TRUE unless you set the focus to a control `{Jo>L.
} |Ix{JP"Lk
3P.v#TEst
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) bwC~
{
&H4Y`xV^=
if ((nID & 0xFFF0) == IDM_ABOUTBOX) Qm"&=<
{ hfJeVT-/v
CAboutDlg dlgAbout; ?rJe"TOIy
dlgAbout.DoModal(); 8t)?$j$
} @TQzF-%#7
else o]@Mg5(8Q
{ Q)IL]S
CDialog::OnSysCommand(nID, lParam); I[l8@!0
} CE|iu!-4
} aPwUC:>`D
t'e\Z2
void CCaptureDlg::OnPaint() [ ,&O
{ }fV+Kd$CB
if (IsIconic()) fi,h`mdT?
{ 8v ZY+Q >
CPaintDC dc(this); // device context for painting ;
u@& [
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); t@;r~Sb
// Center icon in client rectangle 5r)]o'?s
int cxIcon = GetSystemMetrics(SM_CXICON); V JJ6q
int cyIcon = GetSystemMetrics(SM_CYICON); 6CV9ewr
CRect rect; m]?C @ina
GetClientRect(&rect); .eHOG]H
int x = (rect.Width() - cxIcon + 1) / 2; :~{Nf-y0`1
int y = (rect.Height() - cyIcon + 1) / 2; Q,m&XpZ
// Draw the icon J#*%r)
dc.DrawIcon(x, y, m_hIcon); rRQKW_9mB
} O
a%ZlEUF
else P3k@ptc-K
{ 2.2G79U,
CDialog::OnPaint(); \C}_l+nY
} mm:g9j
} m<e_Z~ ^G
~PtIq.BY
HCURSOR CCaptureDlg::OnQueryDragIcon() @2;/-,4O
{ fP KFU
return (HCURSOR) m_hIcon; bzWWW^kNL
} k9_c<TSzu
Ncr*F^J4
void CCaptureDlg::OnCancel() YAsE,M+
{ =j~vL`d2]
if(bTray) a/{M2
DeleteIcon(); ;{Nc9d
CDialog::OnCancel(); |[W7&@hF
} ccY! OSae
:Ldx^UO
void CCaptureDlg::OnAbout() 0@tN3u?dx
{ P#l"`C
/
CAboutDlg dlg;
TY`t3
dlg.DoModal(); E;bv;RUio
} u Wxl\+_i
'Z8=y[l
void CCaptureDlg::OnBrowse() ~wFiq)v(
{ !zQbF&>
CString str; hd1aNaF-
BROWSEINFO bi; l2ARM3"
char name[MAX_PATH]; +pY--5t
ZeroMemory(&bi,sizeof(BROWSEINFO)); tyU'[LF?
bi.hwndOwner=GetSafeHwnd(); ?p'DgL{
bi.pszDisplayName=name; Db K(Rh_
K
bi.lpszTitle="Select folder"; Yv/T6z@
bi.ulFlags=BIF_RETURNONLYFSDIRS; .z, ot|
LPITEMIDLIST idl=SHBrowseForFolder(&bi); {fI"p;|
if(idl==NULL) H(gETRh
return; ae>B0#=
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); `LOW)|6r`
str.ReleaseBuffer(); sXwa`_{
m_Path=str; F#)@ c
if(str.GetAt(str.GetLength()-1)!='\\') E<[Y KY
m_Path+="\\"; fZavZ\qU
UpdateData(FALSE); P47x-;
} eXAJ%^iD
_$P1N^}Zs
void CCaptureDlg::SaveBmp() 0^83:C
^{
{ \h@3dJ4
CDC dc; awl3|k/
dc.CreateDC("DISPLAY",NULL,NULL,NULL); }0}=-g&
CBitmap bm; LaX<2]Tx:
int Width=GetSystemMetrics(SM_CXSCREEN); m0p%R>:5
int Height=GetSystemMetrics(SM_CYSCREEN); Fv-~v&
bm.CreateCompatibleBitmap(&dc,Width,Height); mu{\_JX.A
CDC tdc; /liZ|K3A
tdc.CreateCompatibleDC(&dc); ugzrG0=lx
CBitmap*pOld=tdc.SelectObject(&bm); uqv S
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); ctMH5"F&1
tdc.SelectObject(pOld); -BC`p 8
BITMAP btm; %+iAL<S
bm.GetBitmap(&btm); \YPvpUg
DWORD size=btm.bmWidthBytes*btm.bmHeight; _P9*78
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); <!q_C5>XJ
BITMAPINFOHEADER bih; oV'G67 W
bih.biBitCount=btm.bmBitsPixel; I+/fX0-Lib
bih.biClrImportant=0; :E.T2na
bih.biClrUsed=0; im@QJ:
bih.biCompression=0; 97 k}{tG
bih.biHeight=btm.bmHeight; X?.tj
Z,
bih.biPlanes=1; w/e?K4
bih.biSize=sizeof(BITMAPINFOHEADER); x
c|1?AFj
bih.biSizeImage=size; E5yn,-GyE0
bih.biWidth=btm.bmWidth; J^-a@'`+
bih.biXPelsPerMeter=0; 4hx4/5[^
bih.biYPelsPerMeter=0; DJb9] ,=a
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); # TZ`
static int filecount=0; o]DYS,v
CString name; 30W.ks5(
name.Format("pict%04d.bmp",filecount++); WOQ>]Z
name=m_Path+name; _9y!,ST
BITMAPFILEHEADER bfh; DMA`Jx
bfh.bfReserved1=bfh.bfReserved2=0; 7$mB.\|
bfh.bfType=((WORD)('M'<< 8)|'B'); @rS(3wu_&
bfh.bfSize=54+size; 7U!-_)n{
bfh.bfOffBits=54; U%n>(!d
CFile bf; >U)>~SQf
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ @RHG@{x{K
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); ~3)d?{5
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); ~;}uYJ
bf.WriteHuge(lpData,size); 8?1MnjhX10
bf.Close(); I2WWhsNC
nCount++; 1<Vke$
} q1Ad"rm
GlobalFreePtr(lpData); 2(f-0or(
if(nCount==1) z@?WhD
m_Number.Format("%d picture captured.",nCount); *).!
else P1^O0)
m_Number.Format("%d pictures captured.",nCount); Q<Qd*v&-
UpdateData(FALSE); _p'u!.a?!
} =E62N7_`=
(>uA(#Z
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) *i {e$Zv'
{ e>x+Xj1
if(pMsg -> message == WM_KEYDOWN) J7HY(7Nx
{ 3+&k{UZjt
if(pMsg -> wParam == VK_ESCAPE) t +|t/1s2
return TRUE; &