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:
HT6 [Z1
G.H8
><% 一、实现方法
z7ik/>d? :oXSh;\ 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:
4/Y?e UQ J\r\_P@;c #pragma data_seg("shareddata")
]bJz-6u#: HHOOK hHook =NULL; //钩子句柄
+U2lwd!j UINT nHookCount =0; //挂接的程序数目
"~5cz0
H3v static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
~PI2G9 static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
9H/>M4RT static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
J7* o%W*V static int KeyCount =0;
U\p`YZ static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
.P$m?p# #pragma data_seg()
4kjfYf@A ,\s`T O 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
Z-U u/GjB @QQ%09* DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
)A$"COM4 >I|8yqbfm BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
st;iGg cKey,UCHAR cMask)
b2OwLt9 {
GLn=*Dh# BOOL bAdded=FALSE;
r*+~(83k for(int index=0;index<MAX_KEY;index++){
3)y1q>CQf if(hCallWnd[index]==0){
9h amxi hCallWnd[index]=hWnd;
q1T)H2S HotKey[index]=cKey;
I&{T 4.B:U HotKeyMask[index]=cMask;
s`jlE|jtN bAdded=TRUE;
l S)^8 KeyCount++;
{+WBi(=W break;
E.h }
pM?~AYWb }
oI;ho6y) return bAdded;
|n/;x$Cb }
E{<#h9=> //删除热键
dS ojq6M BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
2%sZaM {
(dq_,LI BOOL bRemoved=FALSE;
o]q~sJVk6 for(int index=0;index<MAX_KEY;index++){
u]Ku96! if(hCallWnd[index]==hWnd){
*S ag if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
F:!6B b C hCallWnd[index]=NULL;
B/wD~xC?x HotKey[index]=0;
)2Ei< HotKeyMask[index]=0;
hOwb
bRemoved=TRUE;
F
qH))2 KeyCount--;
ENuL!H>;* break;
C2}y#A I }
gz~oQ
l)zJ }
WT'-.UX m }
ryL1<u
~ return bRemoved;
S=_u3OH0 }
cXPpxRXBD 9wYm(7M6 ~_fc=^o DLL中的钩子函数如下:
f~NS{gL* w7Yu} JY^ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
KL'1)G"OH {
o8R_Ojh BOOL bProcessed=FALSE;
N4vcd=uG# if(HC_ACTION==nCode)
EB}B75)x {
h$&Tg_/'#D if((lParam&0xc0000000)==0xc0000000){// 有键松开
CPJ21^ switch(wParam)
@Chl>s {
`;j1H<L case VK_MENU:
uO]D=Z\S( MaskBits&=~ALTBIT;
+MX~1RU+ break;
zR<{z case VK_CONTROL:
^Kz?SO MaskBits&=~CTRLBIT;
I?'*vAW< break;
|M;Nq@bRv case VK_SHIFT:
gw)4P tb! MaskBits&=~SHIFTBIT;
[P
&B break;
<[k3x8H' default: //judge the key and send message
#c:s2EL break;
^
8 }P_ }
K1 "HJsj for(int index=0;index<MAX_KEY;index++){
yMN JHiE/ if(hCallWnd[index]==NULL)
K,g6y#1" continue;
M{J>yN if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
g>VtPS5 y {
q-(~w!e SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
z\m$>C| bProcessed=TRUE;
U4"^NLAq }
nnyT,e% }
v#?DWeaFS_ }
Qn$'bK2V else if((lParam&0xc000ffff)==1){ //有键按下
\6wltTW]# switch(wParam)
@rYZ0`E9 {
1Vy8eI`4 case VK_MENU:
LO_Xrj MaskBits|=ALTBIT;
epsRv&LfC break;
KNeVSZT case VK_CONTROL:
=MqEbQn{C3 MaskBits|=CTRLBIT;
D`p2a eI break;
T \/^4N` case VK_SHIFT:
nX!%9x$3 MaskBits|=SHIFTBIT;
0eA<nK break;
hoFgs9 default: //judge the key and send message
!V.]mI break;
MLV]+H[mt }
U2A-ub>7 for(int index=0;index<MAX_KEY;index++){
oDZZ if(hCallWnd[index]==NULL)
TB>_#+: continue;
zeMV_rW~ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
@ym:@<D {
nk|(cyt) SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
C1;uAw?\ bProcessed=TRUE;
<9]"p2 }
2E-Kz?,:[ }
m~+.vk }
oO
tjG3B({ if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
:rr<#F for(int index=0;index<MAX_KEY;index++){
zu}uW,XH- if(hCallWnd[index]==NULL)
dzIBdth continue;
< dE7+w if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
ck;:84 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
(Iv@SiZf( //lParam的意义可看MSDN中WM_KEYDOWN部分
~aotV1"D }
MEI&]qI }
RhJ 3>DL }
&3iI\s[ return CallNextHookEx( hHook, nCode, wParam, lParam );
\*MZ1Q*x }
L"YQji! Zg_b(ks 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:
\l=A2i7TQ ikZYc ${ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
}!K
# BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
gX!K%qJBg '{,JuX"n 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
H2],auBY dU-:#QV6 LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
QHv]7&^rlj {
W
_[9 if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
]4O!q}@Cd {
GNW$:=0u //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
y0 vo-Q SaveBmp();
w8+phN(-M return FALSE;
d*u3]&?x&f }
htYfIy{5w …… //其它处理及默认处理
=4)8a"7#. }
(Tq)!h35B A6KP(@
vmgd 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。
s[4 qC JXuks`:Q 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。
Ne9VRM
P "U9e)a0v 二、编程步骤
{U9{*e$= *=md!^x` 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
xz`0V}dPl ^E,
#}cW 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
]Y,V)41gCE 1^AQLOiRE1 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
yu#m6K `_D A! 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
\HD:#a 6oWFj eZ0 5、 添加代码,编译运行程序。
|s#,^SJ0 t^bh2$J 三、程序代码
iJZvVs', :"Vmy.xq ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
L]YJ#5 #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
E\2f"s #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
e<DcuF<ZS #if _MSC_VER > 1000
ybf,pDY#f #pragma once
pvWNiW:~k #endif // _MSC_VER > 1000
^!m%:r7Dr #ifndef __AFXWIN_H__
l(MjLXw5 #error include 'stdafx.h' before including this file for PCH
pl}W|kW} #endif
Cf 202pF3y #include "resource.h" // main symbols
0}Kyj"-3 class CHookApp : public CWinApp
5-4 {
v%#@.D!) public:
af[dkuv CHookApp();
ndyIsR // Overrides
./tZ*sP: // ClassWizard generated virtual function overrides
9AWP`~l` //{{AFX_VIRTUAL(CHookApp)
']!wc8m1" public:
{#=o4~u%;H virtual BOOL InitInstance();
. Z`xNp virtual int ExitInstance();
KfK5e{yT //}}AFX_VIRTUAL
0{!-h //{{AFX_MSG(CHookApp)
c*w0Jz>@.7 // NOTE - the ClassWizard will add and remove member functions here.
Nn0j}ZI)1 // DO NOT EDIT what you see in these blocks of generated code !
}V/iU_) //}}AFX_MSG
1q
ZnyJ DECLARE_MESSAGE_MAP()
6d5q<C_3t };
4Qi-zNNB LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
ZRGe$HaU BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
jJ
RaY3 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
B&(/,. BOOL InitHotkey();
?J| BOOL UnInit();
_Kli~$c& M #endif
D=f$-rn Y|#<kS //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
Zirp_[KZ% #include "stdafx.h"
6!6R3Za$ #include "hook.h"
TCgW^iu #include <windowsx.h>
{iQ4jJ`n #ifdef _DEBUG
HKC&grp #define new DEBUG_NEW
Wa!C2nB #undef THIS_FILE
juWbd|ad" static char THIS_FILE[] = __FILE__;
?>R(;B|ER #endif
{rF9[S"h #define MAX_KEY 100
}_}LaEYAo #define CTRLBIT 0x04
c?Zi/7 #define ALTBIT 0x02
DEPsud ; #define SHIFTBIT 0x01
(nkiuCO #pragma data_seg("shareddata")
Cpn!}!Gnf HHOOK hHook =NULL;
oB<!U%BN UINT nHookCount =0;
t ,EMyZ static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
Y 6jgAq static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
i:&$I= static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
l?X)]1 static int KeyCount =0;
P#:n Xc$ static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
9*s:Vff{ #pragma data_seg()
Q{
g{ HINSTANCE hins;
eS%8WmCV9< void VerifyWindow();
;wHyX)&X$ BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
ey:%Zy
[~ //{{AFX_MSG_MAP(CHookApp)
##"
Hui // NOTE - the ClassWizard will add and remove mapping macros here.
h5n@SE>G // DO NOT EDIT what you see in these blocks of generated code!
_GoFwVO //}}AFX_MSG_MAP
8yswi[ END_MESSAGE_MAP()
hBDmC_\~ !%D;H ~mQ CHookApp::CHookApp()
fndH]Yp {
d|sf2 // TODO: add construction code here,
FbCuXS=+` // Place all significant initialization in InitInstance
02[*b }
ziQ&M\ Wq25, M' CHookApp theApp;
gP ^A LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
I!Fd~g9I4 {
2H1?f|0> BOOL bProcessed=FALSE;
`Gg,oCQg if(HC_ACTION==nCode)
Eb&=$4c= {
Q ~eh_>" if((lParam&0xc0000000)==0xc0000000){// Key up
RRpCWcIv" switch(wParam)
F:Yp1Wrb < {
k]c$SzJ> / case VK_MENU:
bhKe"#m|S MaskBits&=~ALTBIT;
wEl/s P break;
K7,Sr1O ` case VK_CONTROL:
y+',jM MaskBits&=~CTRLBIT;
(
_MY;S break;
3my_Gp case VK_SHIFT:
A*kN
I MaskBits&=~SHIFTBIT;
E,/nK break;
QwnqysNx4 default: //judge the key and send message
2\"T& break;
=Nz;R2{@ }
[KEw5-=i@ for(int index=0;index<MAX_KEY;index++){
;IT'6m`@W if(hCallWnd[index]==NULL)
:?gp}. continue;
t&o&gb if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
%y+v0.aWH+ {
bc6|]kB: SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
=>e>
r~cW bProcessed=TRUE;
+[V.yY/t|> }
pWeD,!f }
Wm!cjGK }
\5#eBJ else if((lParam&0xc000ffff)==1){ //Key down
A4)TJY
3g switch(wParam)
Ki[&DvW: {
EiPOY' case VK_MENU:
7Y
4! MaskBits|=ALTBIT;
G#. q%Up break;
0>3Sn\gZ( case VK_CONTROL:
F ^)(
7}ph MaskBits|=CTRLBIT;
s[t?At-> break;
As|e=ut( case VK_SHIFT:
K{iC'^wP MaskBits|=SHIFTBIT;
%\1W0%w break;
eB<R"Yvi default: //judge the key and send message
CeUC[cUQU break;
|Syulus }
WFfn:WSWU for(int index=0;index<MAX_KEY;index++)
>%c>R'~h {
l(Uwci if(hCallWnd[index]==NULL)
5C5OLAl v continue;
gAK"ShOhG= if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
]&"01M~+K {
NqN}] nu6 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
K#x|/b'5d bProcessed=TRUE;
WS\Ir-B }
4@9xq<<5 }
eY`o=xN }
&Y2Dft_K if(!bProcessed){
cJ'OqV F for(int index=0;index<MAX_KEY;index++){
#?DoP]1Y if(hCallWnd[index]==NULL)
($,qxPOn continue;
whQJWi=ck if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
z7HM/<WY SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
+6(\7? }
4mm>6w8NT }
+EH"A }
O&@CT] )8 return CallNextHookEx( hHook, nCode, wParam, lParam );
,3Aiz|v- }
YLb$/6gj6 6P02= BOOL InitHotkey()
=tc!"{ {
)<
p
~ if(hHook!=NULL){
^]?juL nHookCount++;
bg^<e}{<H return TRUE;
z6 .^a-sU5 }
m-<m[ 49 else
T1(*dVU? hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
CEBa,hp@ if(hHook!=NULL)
/1b7f' nHookCount++;
/sdZf|Zl return (hHook!=NULL);
sE[
Yg8yAt }
KESM5p"f BOOL UnInit()
bv}e[yH {
f8)fm2^09 if(nHookCount>1){
BR:Mcc nHookCount--;
*eMMfxFl return TRUE;
C40o_1g }
8Y/1+- BOOL unhooked = UnhookWindowsHookEx(hHook);
%m-U:H.Vp if(unhooked==TRUE){
y N,grU( nHookCount=0;
@iN"]GFjS hHook=NULL;
HmbQL2 }
$#E!/vVwD7 return unhooked;
L.: 8qY }
ipS:)4QFxJ ;KT5qiqYH BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
&W{v(@ {
~,.;2K73 BOOL bAdded=FALSE;
#g<6ISuf for(int index=0;index<MAX_KEY;index++){
k&17 (Tv$ if(hCallWnd[index]==0){
P[tYu: hCallWnd[index]=hWnd;
TrBW0Bn>p HotKey[index]=cKey;
4u#TKr. HotKeyMask[index]=cMask;
H^M>(kT#& bAdded=TRUE;
Cl!9/l?z KeyCount++;
mB"1QtD break;
dj{~!} }
0!M'z }
>+):eBL return bAdded;
P=Su)c }
z#2n+hwE |^"0bu" BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
S:1g(f*85 {
,(NN)Oj BOOL bRemoved=FALSE;
zpZfsn! for(int index=0;index<MAX_KEY;index++){
%a!gN if(hCallWnd[index]==hWnd){
%Rk DR if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
:TkMS8 hCallWnd[index]=NULL;
e9>~mtx HotKey[index]=0;
9+3 VK HotKeyMask[index]=0;
[Kaa{+,( bRemoved=TRUE;
%^[D+1ULb KeyCount--;
/O~Np|~v break;
B:Hr{%O }
}
| }
<
pZwM }
s;-AZr) return bRemoved;
lX"6m}~D }
5GGO: M~~)tJYsu void VerifyWindow()
8{_lB#<[E {
gU1Pb]] for(int i=0;i<MAX_KEY;i++){
L@Q+HN if(hCallWnd
!=NULL){ 8 [D"
if(!IsWindow(hCallWnd)){ qw{`?1[+
hCallWnd=NULL; x_r*<?OZ
HotKey=0; hw(\3h()
HotKeyMask=0; lnRL^ }
KeyCount--; -!}3bl*(7
} n#@ Qd!uzM
} ,e$6%R
} kpxGC,I^*.
} '.k'*=cq0
^b.#4i(v
BOOL CHookApp::InitInstance() m=SI *V
{ "lSh4X
AFX_MANAGE_STATE(AfxGetStaticModuleState()); bc3`x1)\^
hins=AfxGetInstanceHandle(); Ej1<T,w_
InitHotkey(); &xUD(
return CWinApp::InitInstance(); qHvUBx0
} Sa
kew
CP0'pL=;
int CHookApp::ExitInstance() =[LorvX+
{ 216$,4i
VerifyWindow(); [2h.5.af
UnInit(); 9Vo*AK'&U
return CWinApp::ExitInstance(); 8:>V'j
} X-#&]^d
V1~@
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file DTSf[zP/
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) #'0Yzh]qc
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ </u=<^ire
#if _MSC_VER > 1000 *QV"o{V
#pragma once ambr}+}
#endif // _MSC_VER > 1000 z+- o}i
hS&l4 \I'Z
class CCaptureDlg : public CDialog ,~DV0#"
{ [:cvy[}v@
// Construction =E<H_cUS
public: }pIn3B)
BOOL bTray; kDI?v6y5
BOOL bRegistered; !?=U{^|7y
BOOL RegisterHotkey(); _^NyLI%
UCHAR cKey; ? ^W1WEBm
UCHAR cMask; T6QRr}8`/J
void DeleteIcon(); =4l @A>
void AddIcon(); hzRKv6
UINT nCount; g5lb3`a3
void SaveBmp(); tRZ4\Bu
CCaptureDlg(CWnd* pParent = NULL); // standard constructor K/K-u
// Dialog Data I]E 3&gnC
//{{AFX_DATA(CCaptureDlg) Qd{8.lB~LQ
enum { IDD = IDD_CAPTURE_DIALOG }; qR_>41JU"
CComboBox m_Key; {/H<_
BOOL m_bControl; CS~_>bn
BOOL m_bAlt; ~$J(it-a
BOOL m_bShift; ~UZ3 lN\E
CString m_Path; a[ayr$Hk?
CString m_Number; ^
nI2<P
//}}AFX_DATA "r*`*1
// ClassWizard generated virtual function overrides QXN_ ?E,g/
//{{AFX_VIRTUAL(CCaptureDlg) IWq#W(yM
public: &N._}ts
virtual BOOL PreTranslateMessage(MSG* pMsg); JWI Y0iP
protected: _OyQ:>M6P
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 0Q`v#$?":
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); oLh ,F"nB
//}}AFX_VIRTUAL 8-B7_GoJ+B
// Implementation ;o9ixmT<-o
protected: \~"Ub"~I
HICON m_hIcon; /s}
"0/Y\
// Generated message map functions I<ohh`.
//{{AFX_MSG(CCaptureDlg) %^L{K[}
virtual BOOL OnInitDialog(); w.a9}GC
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); d?T!)w
afx_msg void OnPaint(); b5LToy:
afx_msg HCURSOR OnQueryDragIcon(); `Y5LAt:
virtual void OnCancel(); -(]CFnD_N
afx_msg void OnAbout(); f!`?_
afx_msg void OnBrowse(); N)GHQlgH
afx_msg void OnChange(); V5z2.} 'o-
//}}AFX_MSG 9$HBKcO
DECLARE_MESSAGE_MAP() )c{>@WM~
}; 3ie
k>'T
#endif .Zv~a&GE
c|;n)as9(%
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file DZtpY{=Z
#include "stdafx.h" #Uu,yHMv:;
#include "Capture.h" W>C?a=r~
#include "CaptureDlg.h" YnRO>`
#include <windowsx.h> "`V@?+3
#pragma comment(lib,"hook.lib") BB\GrD
#ifdef _DEBUG @$ Zh^+x!
#define new DEBUG_NEW Z17b=xJw
#undef THIS_FILE BZ1wE1 t
static char THIS_FILE[] = __FILE__; Y~85Z0l
#endif gS5MoW1
#define IDM_SHELL WM_USER+1 _ERtL5^
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); G<n75!
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); M|mfkIk0MB
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; ]}XDDPbZ}
class CAboutDlg : public CDialog $Gv@lZ@=
{ >kK@tJn
public: eIY`RMo
(
CAboutDlg(); |HD>m'e
// Dialog Data i7XY3yhC
//{{AFX_DATA(CAboutDlg) {pIh/0
enum { IDD = IDD_ABOUTBOX }; $t.oGd@N
//}}AFX_DATA LhbdvJAk@
// ClassWizard generated virtual function overrides Hf?@<4
//{{AFX_VIRTUAL(CAboutDlg) %m\:AK[}
protected: uBx\xeI
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support $|- Lw!)D
//}}AFX_VIRTUAL m0TV i] v
// Implementation JM,%|
E
protected: _d5:Y
//{{AFX_MSG(CAboutDlg) Y
b3ckktY
//}}AFX_MSG rs{)4.I
DECLARE_MESSAGE_MAP() Sk cK>i.[
}; ;v@ G
6r<a
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) Lz.khE<
{ t.28IHJ
//{{AFX_DATA_INIT(CAboutDlg) U
5J
_Y
//}}AFX_DATA_INIT LJ/He[r|[
} CF{b Yf^%
&/]en|f"
void CAboutDlg::DoDataExchange(CDataExchange* pDX) vS>'LX
{ >X$JeME3
CDialog::DoDataExchange(pDX); 'NhQBk
//{{AFX_DATA_MAP(CAboutDlg) E(4c&
//}}AFX_DATA_MAP P\7*ql`
} FT-.gi0
)bOfs*S
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 9f( X7kt
//{{AFX_MSG_MAP(CAboutDlg) :}zyd;Rc
// No message handlers |NZi2Bu
//}}AFX_MSG_MAP v"o"W[
END_MESSAGE_MAP() \mc0fY
>0{}tRm-P&
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) F tIcA"^N
: CDialog(CCaptureDlg::IDD, pParent) "kyCY9)%
{ wS*r<zj
//{{AFX_DATA_INIT(CCaptureDlg) #XDgvX >
m_bControl = FALSE; =#V^t$
m_bAlt = FALSE; &<BBPn@\
m_bShift = FALSE; 4@
m_Path = _T("c:\\"); (w hl1
m_Number = _T("0 picture captured."); `|ie#L(:7/
nCount=0; <#C,66k
bRegistered=FALSE; <b zzbR[F
bTray=FALSE; lLTqk\8g
//}}AFX_DATA_INIT e
c&Y2
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 kL*P 3
0
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); #uhUZq
} 2e1KF=N+
6WY/[TC-
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) @=Q!a (g
{ XGx[Ny_A2
CDialog::DoDataExchange(pDX); *vD.\e~
//{{AFX_DATA_MAP(CCaptureDlg) \FVfV`x
DDX_Control(pDX, IDC_KEY, m_Key); \"a{\E,{;
DDX_Check(pDX, IDC_CONTROL, m_bControl); aV'bI
DDX_Check(pDX, IDC_ALT, m_bAlt); ;t{q]"? W
DDX_Check(pDX, IDC_SHIFT, m_bShift); o6[.$C
DDX_Text(pDX, IDC_PATH, m_Path); )@N d3Z
DDX_Text(pDX, IDC_NUMBER, m_Number); ZZT #V%Q=u
//}}AFX_DATA_MAP ,0W^"f.g{m
} EnM
$y8-JR~
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) 1D*=ZkA)
//{{AFX_MSG_MAP(CCaptureDlg) XDemdMy$
ON_WM_SYSCOMMAND() Z10Vx2B
ON_WM_PAINT() T$%|=gq
ON_WM_QUERYDRAGICON() p\w<~pN[
ON_BN_CLICKED(ID_ABOUT, OnAbout) 4nsJZo#S/
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) YExgUE|
ON_BN_CLICKED(ID_CHANGE, OnChange) l^lb ^"o
//}}AFX_MSG_MAP ,QcS[9$
END_MESSAGE_MAP() tqGrhOt
JXB)'d0
BOOL CCaptureDlg::OnInitDialog() %\m"Yi]
{ p~$cwbQ!
CDialog::OnInitDialog(); RuPnWx!
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); yaj dRU
ASSERT(IDM_ABOUTBOX < 0xF000); o!M8V ^vW
CMenu* pSysMenu = GetSystemMenu(FALSE); 4Z)s8sD KW
if (pSysMenu != NULL) ~bLx2=-"
{ \R#SoOd
CString strAboutMenu; )'djqpM.
strAboutMenu.LoadString(IDS_ABOUTBOX); \vA*dQ-
if (!strAboutMenu.IsEmpty()) = s&Rk~2b/
{ xa~]t<2
pSysMenu->AppendMenu(MF_SEPARATOR); +hyOc|5
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); ^m qEKy<
} JusU5 e|
} EwP2,$;
SetIcon(m_hIcon, TRUE); // Set big icon 'UX.Q7W
SetIcon(m_hIcon, FALSE); // Set small icon |b
m_Key.SetCurSel(0); %O"8|ZG9{
RegisterHotkey(); mO>L]<O
CMenu* pMenu=GetSystemMenu(FALSE); Pyo|Sgk
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); I!sT=w8V
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); n#(pT3&
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); V(7,N(
return TRUE; // return TRUE unless you set the focus to a control 8SGaS&
} 9wvlR6z;u
QQ(}71U
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) L+am-k:T~
{ 3Ua?^2l
if ((nID & 0xFFF0) == IDM_ABOUTBOX) EW
`hL~{
{ 6Tl6A>%s
CAboutDlg dlgAbout; (> al-vZ6A
dlgAbout.DoModal(); lzEynMO+
} qe0 D[L
else .GrOdDK$ns
{ `/8@Fj
CDialog::OnSysCommand(nID, lParam); 2JfSi2T
} n7Ao.b%uk-
} SMN.AJ
J
KgL!~J
void CCaptureDlg::OnPaint() q/i2o[f'n
{ 5hrI#fpOR
if (IsIconic()) H"A%mrb
{ >e;-$$e
CPaintDC dc(this); // device context for painting #D`@G8~(
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); XM$~HG
// Center icon in client rectangle gmGK3am
int cxIcon = GetSystemMetrics(SM_CXICON); $Z]&3VxxY
int cyIcon = GetSystemMetrics(SM_CYICON); G3.aw
CRect rect; `w@:h4f
GetClientRect(&rect); /"{d2
int x = (rect.Width() - cxIcon + 1) / 2; rAenxZ,tF
int y = (rect.Height() - cyIcon + 1) / 2; mWp>E`l
// Draw the icon zggnDkC5
dc.DrawIcon(x, y, m_hIcon); J@3,
} GY~$<^AK
else zx.qN
{ c!6D{(sfh
CDialog::OnPaint(); Itl8#LpLM
} l1 +l@r\
} VBhUh~:Om
m:H^m/g
HCURSOR CCaptureDlg::OnQueryDragIcon() m^A2
8X7
{ Blpk
n1
return (HCURSOR) m_hIcon; xTHD_?d
} TGCB=e
f{sT*_at
void CCaptureDlg::OnCancel() j}+3+ 8D
{ vm [lMx
if(bTray) `^M]|7
DeleteIcon(); IskL$Y ^
CDialog::OnCancel(); \]X.f&u
} l]*RiK2AC
7)Toj
void CCaptureDlg::OnAbout() QS#@xhH
{ n:@!vV
CAboutDlg dlg; eaw!5]huu
dlg.DoModal(); aKI"<%PNn
} ,.,8-In^
iJs~NLCgVu
void CCaptureDlg::OnBrowse() {:X'9NEE
{ vX+oZj
CString str; DX_mrG
BROWSEINFO bi; e(c\ U}&
char name[MAX_PATH]; _4S^'FDo
ZeroMemory(&bi,sizeof(BROWSEINFO)); {[y6qQm
bi.hwndOwner=GetSafeHwnd(); 5!c/J:z
bi.pszDisplayName=name; v">?`8V
bi.lpszTitle="Select folder"; 1T^WMn:U
bi.ulFlags=BIF_RETURNONLYFSDIRS; -U|c~Cqc
LPITEMIDLIST idl=SHBrowseForFolder(&bi); -]N2V'QB
if(idl==NULL) %>|FJ
return; 6= ?0&Bx&
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); ]!hjKu"
str.ReleaseBuffer(); ]S2rqKB
m_Path=str; i
;FKnK
if(str.GetAt(str.GetLength()-1)!='\\') THrLX;I
m_Path+="\\"; ,KY;NbL-Jp
UpdateData(FALSE); k8gH#ENNK
} 4_#$k{
g"-j/ c
void CCaptureDlg::SaveBmp() K@.5
{ Cfi{%,em
CDC dc; Jh"[ug
dc.CreateDC("DISPLAY",NULL,NULL,NULL); 15:9JVH3D
CBitmap bm; 66=[6U9 *
int Width=GetSystemMetrics(SM_CXSCREEN); %4~"$kE
int Height=GetSystemMetrics(SM_CYSCREEN); Jqoo&T")
bm.CreateCompatibleBitmap(&dc,Width,Height); zJDHDr
CDC tdc; -E-#@s
tdc.CreateCompatibleDC(&dc); N_Us6X
CBitmap*pOld=tdc.SelectObject(&bm); G]lGoa}]`u
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); w2LnY1A
tdc.SelectObject(pOld); osp~)icun
BITMAP btm; ff--y8h
bm.GetBitmap(&btm); dSDZMB sd
DWORD size=btm.bmWidthBytes*btm.bmHeight; ~&?([}A
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); \@Wv{0a(
BITMAPINFOHEADER bih; +t!]nE#
bih.biBitCount=btm.bmBitsPixel; zIa={tU
bih.biClrImportant=0; x'|ty[87
bih.biClrUsed=0; Qz(D1>5I?
bih.biCompression=0; )*KMU?
bih.biHeight=btm.bmHeight; j0l,1=^>l
bih.biPlanes=1; -]3 K#M)s
bih.biSize=sizeof(BITMAPINFOHEADER); (HNc9QVC'W
bih.biSizeImage=size; Mc,79Ix"
bih.biWidth=btm.bmWidth; ,np=m17
bih.biXPelsPerMeter=0; 2Kxb(q"
bih.biYPelsPerMeter=0; v93b8/1
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); {&1L &f<
static int filecount=0; cy%M$O|hX5
CString name; fUw:jExz
name.Format("pict%04d.bmp",filecount++); "Q: Gd6?h;
name=m_Path+name; x^s,<G
BITMAPFILEHEADER bfh; f;E#CjlTL
bfh.bfReserved1=bfh.bfReserved2=0; +d,
~h_7!
bfh.bfType=((WORD)('M'<< 8)|'B'); ieyK$q
bfh.bfSize=54+size; ^t0!Dbx3SE
bfh.bfOffBits=54; `>"#d
?,
CFile bf; -}7$;QK&a
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ jCqz^5=$
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); r-qe7K@p
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); _zj^k$ j
bf.WriteHuge(lpData,size); ((M,6Q}
bf.Close(); b(K"CL\p
nCount++; /k.0gYD
} E'6>3n
GlobalFreePtr(lpData); "L>'X22ed
if(nCount==1) N{Sp-J>
m_Number.Format("%d picture captured.",nCount); @IG's-
else !)a_@d.;i
m_Number.Format("%d pictures captured.",nCount); )fJ"Hq
UpdateData(FALSE); CJ<nUIy'z
} y|LHnNQ
/^=1]+_!
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) :Xw|v2z%3
{ -2.7Z`*(
if(pMsg -> message == WM_KEYDOWN) jKUEs75]
{ =~:IiK/#
if(pMsg -> wParam == VK_ESCAPE) {B+}LL!
return TRUE; [ycX)iM
if(pMsg -> wParam == VK_RETURN) |/,SNE
return TRUE; 7Kw'Y8
} 4[lFurH
return CDialog::PreTranslateMessage(pMsg); !2t7s96
} CCTU-Xz/
+\=g&G,
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) &2ED<%hH`
{ :9&