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:
)C0Iy.N-
S]e;p\8$Z 一、实现方法
(
YZ2& S,Qa\\~z 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
64'sJc. 7^#O{QYol #pragma data_seg("shareddata")
(\
|Go-2G HHOOK hHook =NULL; //钩子句柄
rof9Rxxe- UINT nHookCount =0; //挂接的程序数目
ME5M;bz( static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
tC=K;zsXpz static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
d7Cs a
c static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
c[vFh0s"m static int KeyCount =0;
?l|&JgJ$ static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
v(uNqX.BC #pragma data_seg()
@y
eAM7 !,J]5$M 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
t`eIkq|NxI T$DFTr\\ 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:
kexvE 3 %?/vC6 BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
YQ1rS X3 cKey,UCHAR cMask)
zSOZr2-
^a {
?;_Mx al' BOOL bAdded=FALSE;
+QSH*(, for(int index=0;index<MAX_KEY;index++){
G 40 if(hCallWnd[index]==0){
l['ER$(7 hCallWnd[index]=hWnd;
OSh'b$Z HotKey[index]=cKey;
gla'urb[i| HotKeyMask[index]=cMask;
iDsY5l bAdded=TRUE;
G}dq
ft5" KeyCount++;
&pv*TL8 break;
\SJX;7ST }
3?+t%_[ }
(
~JtKSq% return bAdded;
Ty;^3 }
kH[thRk} //删除热键
$P #KL// BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
:o:/RR p[ {
O/&Qzt BOOL bRemoved=FALSE;
#! (2@N8 for(int index=0;index<MAX_KEY;index++){
I;{Ua* if(hCallWnd[index]==hWnd){
W6u(+P](" if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
<#./q LSR hCallWnd[index]=NULL;
M pz9}[`3g HotKey[index]=0;
\~C/ HotKeyMask[index]=0;
Ga
<=Di): bRemoved=TRUE;
cA90FqUH KeyCount--;
#=F{G4d)!= break;
8SupoS }
uy|]@|J }
(3j f_ }
BY$L[U;@T return bRemoved;
&}_tALg }
)~w
bu2; )L"J?wTe _~y-?(46K DLL中的钩子函数如下:
mF>{cVTF {JfL7% LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
nbDjoZZ4 {
IY@N BOOL bProcessed=FALSE;
ny<D1>{90 if(HC_ACTION==nCode)
M'NOM>8 {
&o`LT|*m if((lParam&0xc0000000)==0xc0000000){// 有键松开
1CUI6@Cz) switch(wParam)
@G|z_ {
8K\S]SZ case VK_MENU:
E6?0/" MaskBits&=~ALTBIT;
a{.-qp break;
)<5hga][~a case VK_CONTROL:
0/~{, MaskBits&=~CTRLBIT;
oSO~72 break;
;_/!F}d case VK_SHIFT:
WjvgDNk MaskBits&=~SHIFTBIT;
HoZsDs.XZ break;
x*:"G'zT default: //judge the key and send message
u*T#? W? break;
<.lt?!.ZH }
:4Y5 for(int index=0;index<MAX_KEY;index++){
R{9G$b1Due if(hCallWnd[index]==NULL)
^jk-GRD* continue;
rFW,x_*_vP if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
kr44@!s+' {
FJsM3|{2=d SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
UQBc$`v bProcessed=TRUE;
H 9?txNea }
Jg6@)<n }
D@
BP< }
i\ )$ else if((lParam&0xc000ffff)==1){ //有键按下
b,#?LdQ% switch(wParam)
~#=70 {
Ece=loV*l case VK_MENU:
"Q[?W(SA MaskBits|=ALTBIT;
;F/w&u.n break;
}l5Q0' case VK_CONTROL:
~yY5pnJ MaskBits|=CTRLBIT;
{w v{"*Q9Q break;
UrdSo"% case VK_SHIFT:
ERfSJ MaskBits|=SHIFTBIT;
X9YbTN break;
;jmT5XzL default: //judge the key and send message
bZgFea_>i break;
80LN(0?x }
2KNs,4X@ for(int index=0;index<MAX_KEY;index++){
Et;Ubj"+ if(hCallWnd[index]==NULL)
j__l'?s continue;
[-nPHmZV[ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
G;J!3A;TE {
h-%RSei5 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
X$SXDb~G bProcessed=TRUE;
y# IUDnRJ }
CmtDfE }
a.XMeB }
jq(rnbV if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
u/`
t+-A for(int index=0;index<MAX_KEY;index++){
~AcjB( if(hCallWnd[index]==NULL)
_$T.N continue;
D\z`+TyJ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
pH396GFIW SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
4BJ w+EV8 //lParam的意义可看MSDN中WM_KEYDOWN部分
V"A*B }
#ahe@|E'Y }
Nbt.y 'd }
M{X; H'2 return CallNextHookEx( hHook, nCode, wParam, lParam );
4` :Eiik&p }
lh;;%@1DM n7bML?f' 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:
"]yfx@)_ OlX
otp8 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
wkD"EuW( BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
I:] Pd hhJs$c( 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
BHS8MV L@ @KU^B_{i LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
(_Rl
f$D {
B1J2m^ if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
mHc5NkvQC {
gV-A+;u //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
'c$)}R
I7 SaveBmp();
Az6tu < return FALSE;
ohPDknHp }
mzn#4;m$ …… //其它处理及默认处理
W;.LN<bx }
q]gF[&QZ *,e`. ifadnl26
s 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。
Gp1?drF6 eMU t%zvb 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。
x#'v}(v 3Sn#
M{wH 二、编程步骤
Q'Y7PG9m~ DhiIKd9W 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";
9-Xr (6i.>%|_ 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
2Gn26L5 @5cY5e*i{ 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;
fh9w5hT={ ;sY n=r 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;
4R9y~~+ +<sv/gEt 5、 添加代码,编译运行程序。
cTdX'5 q) y<\cEO 三、程序代码
e^-CxHwA- xDn#=%~+x ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
LbnW(wr6:( #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
Gg{M #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
N[sJ5oF #if _MSC_VER > 1000
R rp-SR?O #pragma once
A7zL\U4 #endif // _MSC_VER > 1000
] U.*KkQ #ifndef __AFXWIN_H__
1m<8M[6u #error include 'stdafx.h' before including this file for PCH
JQA]O/|N #endif
2h`Tn{&1/ #include "resource.h" // main symbols
--F6n/> class CHookApp : public CWinApp
{A{sRT=% {
qyR}|<F8* public:
J|DY
/v CHookApp();
_k Utj(re // Overrides
KKNQ+'? // ClassWizard generated virtual function overrides
nRheByYm //{{AFX_VIRTUAL(CHookApp)
\s,~|0_V public:
$u::(s}
x< virtual BOOL InitInstance();
mN1n/LNi virtual int ExitInstance();
c{})Z= //}}AFX_VIRTUAL
hfRxZ>O2 //{{AFX_MSG(CHookApp)
SH6T\}X: // NOTE - the ClassWizard will add and remove member functions here.
i:
VMCNH // DO NOT EDIT what you see in these blocks of generated code !
IkgRZ{Y //}}AFX_MSG
`4a9<bG DECLARE_MESSAGE_MAP()
v}Kj+9h };
dg@'5.ApPu LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
X`fer%` BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
6~a4-5;>z BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
\W"p<oo|H BOOL InitHotkey();
}EN-WDJD\ BOOL UnInit();
W]M Fq5. #endif
Eb9n6Fg 1( rN //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
$[+)N~ #include "stdafx.h"
G/yYIs #include "hook.h"
75H;6(7 #include <windowsx.h>
WO[O0!X #ifdef _DEBUG
@
[%K D #define new DEBUG_NEW
6-f-/$B #undef THIS_FILE
,7SqRY,+ static char THIS_FILE[] = __FILE__;
X1^Q1?0 #endif
!PJp() #define MAX_KEY 100
sv+6# #define CTRLBIT 0x04
C{]1+eL #define ALTBIT 0x02
KDLrt #define SHIFTBIT 0x01
1i@a? 27| #pragma data_seg("shareddata")
PySFhb@ HHOOK hHook =NULL;
yMJ(Sf UINT nHookCount =0;
\n^;r|J7k static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
mQ^SpK # static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
xtzkgb,0[ static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
U i`#B static int KeyCount =0;
P5&8^YV`N static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
{ukQBu#}< #pragma data_seg()
!3 zN [@w, HINSTANCE hins;
Ceew~n{ void VerifyWindow();
$ <Mf#.8% BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
jm,c Vo //{{AFX_MSG_MAP(CHookApp)
lec3rv0) // NOTE - the ClassWizard will add and remove mapping macros here.
| *N;R+b // DO NOT EDIT what you see in these blocks of generated code!
N@V:nCl //}}AFX_MSG_MAP
LU+}iA) END_MESSAGE_MAP()
RSup_4A pg{cZ1/ CHookApp::CHookApp()
NF'<8{~ {
T%SK";PAU$ // TODO: add construction code here,
u0nIr9 // Place all significant initialization in InitInstance
^CP>|JWD^ }
/&zlC{:G92 1Hs'YzvY CHookApp theApp;
\W7pSV-U LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
XUTsW,WC {
DY1"t7
9E BOOL bProcessed=FALSE;
Hh*
KcIRX if(HC_ACTION==nCode)
UHBMl>~z {
*s|'V+1 if((lParam&0xc0000000)==0xc0000000){// Key up
j eyGIY switch(wParam)
0N_u6*@ {
L)"CE]. case VK_MENU:
j8;Uny9 MaskBits&=~ALTBIT;
X}`39r. break;
z[0tM&pv case VK_CONTROL:
yacN=]SW5 MaskBits&=~CTRLBIT;
u=7#_ZC9L break;
piXL6V @c case VK_SHIFT:
#?'@?0<6 MaskBits&=~SHIFTBIT;
;Swy5z0=ro break;
5.
+_'bF| default: //judge the key and send message
+-qa7 break;
nxe9^h7m }
1wBmDEhS for(int index=0;index<MAX_KEY;index++){
ym'!f|9AA if(hCallWnd[index]==NULL)
Wjr^: d continue;
!1Nh`FN if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
r(JP&
@ {
'~zi~Q7M SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
2IXtIE bProcessed=TRUE;
ywA7hm }
vPAL, }
XHh*6Yt_ ( }
I!T=$Um else if((lParam&0xc000ffff)==1){ //Key down
b"w@am>& switch(wParam)
YmLpGqNv {
.z^O y_S{ case VK_MENU:
12tk$FcY8* MaskBits|=ALTBIT;
$4hi D;n break;
NKl`IiGv case VK_CONTROL:
0/uy'JvWru MaskBits|=CTRLBIT;
%JI*)K1WI break;
V,]Fh5f case VK_SHIFT:
"iUh.c=0F, MaskBits|=SHIFTBIT;
Ezr q2/~Q break;
0rxGb} b* default: //judge the key and send message
S84S/y break;
0{-?Wy }
#X2wy$GTG for(int index=0;index<MAX_KEY;index++)
+%Z:k {
Y~@( if(hCallWnd[index]==NULL)
}yw>d\] f continue;
mSGpxZ,IE if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
kt+h\^g {
yJMo/!DZ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
BDLJDyf B bProcessed=TRUE;
g!^mewtd }
p$cb&NNh*H }
"bz]5c~ }
v>_83P` if(!bProcessed){
8~3I^I_v for(int index=0;index<MAX_KEY;index++){
G+<id1 if(hCallWnd[index]==NULL)
??lsv(v- continue;
1'|gxYT if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
eOx8D|^W SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
1C0'
Gf)3 }
&joP-!" }
jwSPLq% }
Pk=0pHH8q return CallNextHookEx( hHook, nCode, wParam, lParam );
@mb' !r }
RDEK=^J c )=a;_h BOOL InitHotkey()
4vV\vXT * {
KY?ujeF if(hHook!=NULL){
fNBI!= nHookCount++;
{7%(m|( return TRUE;
G++<r7;x }
J0B*V0'zR else
@U@O#+d'ZR hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
KNR7Igw?} if(hHook!=NULL)
bz.sWBugR nHookCount++;
Y^ y:N$3$\ return (hHook!=NULL);
[I/ZzDMX }
<C451+95 BOOL UnInit()
PcjeuJZ {
9 9^7Ek!z# if(nHookCount>1){
O%w'nz" nHookCount--;
204"\mv return TRUE;
[z!pm-Ir }
=Aw`0 BOOL unhooked = UnhookWindowsHookEx(hHook);
1DGl[k/zv if(unhooked==TRUE){
Z[>fFg~N4 nHookCount=0;
x,|fblQz hHook=NULL;
trB-(B%5 }
VF g(: return unhooked;
oDayfyy4y) }
.&I!2F b_7LSp BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
DuLl"w\_@ {
N1sdWXG BOOL bAdded=FALSE;
W }v
,6Oe for(int index=0;index<MAX_KEY;index++){
uc}F|O if(hCallWnd[index]==0){
#g'j0N hCallWnd[index]=hWnd;
zGy+jeH:. HotKey[index]=cKey;
<p-@XzyE HotKeyMask[index]=cMask;
:jC$$oC]. bAdded=TRUE;
5.D0 1?k KeyCount++;
1
1(GCu break;
r$Ni>[as }
C|[x],JCS }
#Nad1C/] return bAdded;
^Cvt^cI }
G( BSe`f a
<Iikx BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Z4E6J'B8 {
Z#D*HAd` BOOL bRemoved=FALSE;
(:\L@j for(int index=0;index<MAX_KEY;index++){
h<8c{RuoZC if(hCallWnd[index]==hWnd){
f1sp6S0V\ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
$4qM\3x0, hCallWnd[index]=NULL;
reM~q-M~o@ HotKey[index]=0;
g_Rp}6g HotKeyMask[index]=0;
\HG4i/V:h bRemoved=TRUE;
|gHdTb1 KeyCount--;
o{QV'dgu break;
>[:qJ|i% }
u%Mo.<PI }
!6a;/ys }
m(D-?mhL return bRemoved;
sH'0utD#Y }
IiJ$Ng t=|}?lN< void VerifyWindow()
gZBKe!@a| {
J^S!GG'gb for(int i=0;i<MAX_KEY;i++){
,X;$-. if(hCallWnd
!=NULL){ ydj*Jy'
if(!IsWindow(hCallWnd)){ g^7zDU&'
hCallWnd=NULL; DtJ3`Jd
HotKey=0; .v+W>
HotKeyMask=0; 'Yh`B8
KeyCount--; 3\{\ al
} Zg0nsNA
} Qwve-[
} j5A>aj
} (44L8)I.D
)>U"WZ'<
BOOL CHookApp::InitInstance() #2$wI^O
{ -$_FKny
AFX_MANAGE_STATE(AfxGetStaticModuleState()); B-$zioZ
hins=AfxGetInstanceHandle(); wXZ9@(^
InitHotkey(); &9z`AY]>
return CWinApp::InitInstance(); eu~ u-}.
} ~%eE%5!k
O(v>\MV
int CHookApp::ExitInstance() B9$pG
{ @&%/<|4P5
VerifyWindow(); :UAcS^n7h"
UnInit(); />pAZa
return CWinApp::ExitInstance(); k\9kOZW
} .o,-a >jL
2v;&`04V<
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file Bj9FSKiH
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) _HjB'XNr(
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ SuNc&e#(
#if _MSC_VER > 1000 _MuzD&^qE
#pragma once uXvE>VpJG
#endif // _MSC_VER > 1000 GN=8;Kq%
J!G92A~*]
class CCaptureDlg : public CDialog B&<5VjZ\
{ MgN;[4|[h
// Construction z`I%3U5(
public: _[i.)8$7
BOOL bTray; G2 V$8lh
BOOL bRegistered; ' o*\N%
BOOL RegisterHotkey(); Cbl>eKw
UCHAR cKey; pGF;,h>
UCHAR cMask; }_}
void DeleteIcon(); bj0<A
void AddIcon(); Ciz,1IV
UINT nCount; ShvC4Xb 0
void SaveBmp(); (FZ8T39
CCaptureDlg(CWnd* pParent = NULL); // standard constructor ?<Hgq8J
// Dialog Data jC$~m#F
//{{AFX_DATA(CCaptureDlg) O '`|(L
enum { IDD = IDD_CAPTURE_DIALOG }; %++S;#)~
CComboBox m_Key; Da!vGr
BOOL m_bControl; q8.Z7ux
BOOL m_bAlt; gg8)oc+w
BOOL m_bShift; y 4aT-^C'
CString m_Path; %e)vl[:}
CString m_Number; Y,EF'Ot
//}}AFX_DATA +JY8"a97>
// ClassWizard generated virtual function overrides UV av^<_
//{{AFX_VIRTUAL(CCaptureDlg) (Q
^=^s|
public: L<XX?I\p
virtual BOOL PreTranslateMessage(MSG* pMsg); [+#k+*1*o
protected: \
bWy5/+
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support wZbT*rU
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); $sZ4r>-
//}}AFX_VIRTUAL Z#[%JUYp'
// Implementation f)gV2f0t
protected: yx6^ mis4
HICON m_hIcon; `[XH=-p
// Generated message map functions 0;,Y_61
//{{AFX_MSG(CCaptureDlg) 1vCp<D9<
virtual BOOL OnInitDialog(); HZS.%+2
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); Xc^(e?L4
afx_msg void OnPaint(); m^0 I3;
afx_msg HCURSOR OnQueryDragIcon(); C8YStT
virtual void OnCancel(); t6kLZ
afx_msg void OnAbout(); TiZ
MY:^
afx_msg void OnBrowse(); k`]76C7
afx_msg void OnChange(); Zy{hYHQ
//}}AFX_MSG k6Vs#K7a
DECLARE_MESSAGE_MAP() 8wZ
$Hq
}; w^n&S=E E~
#endif =knLkbiq7,
gkq~0/
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file &e#pL`N
#include "stdafx.h" $Fy~xMA8O
#include "Capture.h" 2`ERrh^i"
#include "CaptureDlg.h" n<HF]
#include <windowsx.h> yp@cn(:~
#pragma comment(lib,"hook.lib") UfV {m
#ifdef _DEBUG QwF.c28[
#define new DEBUG_NEW p]Qe5@NT
#undef THIS_FILE a9_2b}t
static char THIS_FILE[] = __FILE__; uC#]F@
#endif RZSEcRlN
#define IDM_SHELL WM_USER+1 1DL+=-
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); ;j(*:Nt1
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); l^o>7 cM
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; 6z/&j} (
class CAboutDlg : public CDialog i=M[$
{ mz;ExV16
public: ~7Nqwwx
CAboutDlg(); #q9BU:
// Dialog Data E%stFyr9`/
//{{AFX_DATA(CAboutDlg) Do^yer~
enum { IDD = IDD_ABOUTBOX }; vp d!|/
//}}AFX_DATA gu'+kw
// ClassWizard generated virtual function overrides 7)Tix7:9S;
//{{AFX_VIRTUAL(CAboutDlg) #^ .G^d(=
protected: `ZP[-: `
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support j.+,c#hFo
//}}AFX_VIRTUAL IBNb!mPu%
// Implementation CUjRz5L
protected: 4j i#Q
//{{AFX_MSG(CAboutDlg) {4p7r7n'
//}}AFX_MSG v]KPA.W
DECLARE_MESSAGE_MAP() YY'[PXP$Y
};
YYkgm:[
3=UufI
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) iU~d2R+
{ 4K4u]"1
//{{AFX_DATA_INIT(CAboutDlg) ~EYdE qS)
//}}AFX_DATA_INIT w>Ft5"z
} gB,Q4acjj
4xFAFK~lx
void CAboutDlg::DoDataExchange(CDataExchange* pDX) `$3P@SO"
{ 7Bf4ojKt
CDialog::DoDataExchange(pDX); o(t`XE['<
//{{AFX_DATA_MAP(CAboutDlg) &qa16bz
//}}AFX_DATA_MAP hKsx7`[
} pH@yE Vf
_nw\ac#*
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) +l7Bu} _?
//{{AFX_MSG_MAP(CAboutDlg) -ucR@P]
// No message handlers m5KLi
&R
//}}AFX_MSG_MAP QEx&AT
END_MESSAGE_MAP() Tilr%D(Q
i@<w"yNd_
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) (m.jC}J
: CDialog(CCaptureDlg::IDD, pParent) gKIN* Od
{ (KfdN'vW
//{{AFX_DATA_INIT(CCaptureDlg) H-X5A\\5
m_bControl = FALSE; WFqOVI*l
m_bAlt = FALSE; O&">%aU1I
m_bShift = FALSE; v57Kr ,
m_Path = _T("c:\\"); do%.KIk
m_Number = _T("0 picture captured."); 6skd>v UU
nCount=0; eMH\]A~v"
bRegistered=FALSE; nXxnyom,
bTray=FALSE; )%!X,
//}}AFX_DATA_INIT y G>sBc
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 $ WWi2cI;
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); n4ti{-^4|d
} 3|Ar~_]
=)]RD%Oq
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) 91#n Aj%
{ #e9XU:9@g
CDialog::DoDataExchange(pDX); ]7h;MR
//{{AFX_DATA_MAP(CCaptureDlg) xz,M>Ua
DDX_Control(pDX, IDC_KEY, m_Key); dsbz\w3:
DDX_Check(pDX, IDC_CONTROL, m_bControl); a<V
Mh79*
DDX_Check(pDX, IDC_ALT, m_bAlt); I+Fr#1
DDX_Check(pDX, IDC_SHIFT, m_bShift); \}Pr!tk!
DDX_Text(pDX, IDC_PATH, m_Path); )9!ZkZbv_m
DDX_Text(pDX, IDC_NUMBER, m_Number); a$6pA@7}
//}}AFX_DATA_MAP Io_7
} Z \-
_g"su#
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) Q?9eu%G6I
//{{AFX_MSG_MAP(CCaptureDlg) OQT i$2
ON_WM_SYSCOMMAND() (fO~nN{F
ON_WM_PAINT() $>%zNq-F
ON_WM_QUERYDRAGICON() VAa;XVmB
ON_BN_CLICKED(ID_ABOUT, OnAbout)
"M]`>eixL
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) qv/chD`C
ON_BN_CLICKED(ID_CHANGE, OnChange) x/92],.Mz
//}}AFX_MSG_MAP HsK52<
END_MESSAGE_MAP() #-d-zV*
%5(v'/dQ
BOOL CCaptureDlg::OnInitDialog()
+!wkTrV
{ uQW d1>
CDialog::OnInitDialog(); a+\s 0Qo<
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); y"nCT3
ASSERT(IDM_ABOUTBOX < 0xF000); W8!8/IZbN
CMenu* pSysMenu = GetSystemMenu(FALSE);
lx~mn~;x
if (pSysMenu != NULL) 061 f
{ Ob-k`@_|
CString strAboutMenu; NW Pd~l+
strAboutMenu.LoadString(IDS_ABOUTBOX); "S&1J8D|
if (!strAboutMenu.IsEmpty()) }HZ'i;~r|9
{ KhbbGdmfS$
pSysMenu->AppendMenu(MF_SEPARATOR); ;{cl*EN
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); 'zTa]y]a
} k${F7I(Tb
} #Cz:l|\ i
SetIcon(m_hIcon, TRUE); // Set big icon VH.}}RS%
SetIcon(m_hIcon, FALSE); // Set small icon ^EKf_w-v
m_Key.SetCurSel(0); Aj=c,]2
RegisterHotkey(); R~BW=Dz,e
CMenu* pMenu=GetSystemMenu(FALSE); W{;LI
WsZ
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); d _koF-7
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); SCMZ-^b
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); `3F/7$q_
return TRUE; // return TRUE unless you set the focus to a control 9M-/{D^+<
} sk`RaDq@;
rB5+~
K@
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) -QP1Se*#
{ u+e.{Z!
if ((nID & 0xFFF0) == IDM_ABOUTBOX) oRCD8b?
{ aeF^&F0
CAboutDlg dlgAbout; 7kidPAhY
dlgAbout.DoModal(); *yA.D?
} Bk~M ^AK@~
else .'N#qs_
{ {eo?vA8SE
CDialog::OnSysCommand(nID, lParam); /?QBMI
} p&;,$KDA
} :~9F/Jx
w9a6F
void CCaptureDlg::OnPaint() MT@Uu
{ GD .>u
if (IsIconic()) 93#wU})
{ &Lgi
CPaintDC dc(this); // device context for painting MMUw+jM4
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); #Y<b'7yJ
// Center icon in client rectangle b~FmX
int cxIcon = GetSystemMetrics(SM_CXICON); aD3Q-a[
int cyIcon = GetSystemMetrics(SM_CYICON); 5($
'@u
CRect rect; N
DV_/BI
GetClientRect(&rect); S>p>$m,
Q
int x = (rect.Width() - cxIcon + 1) / 2; DnPV
Tp(>
int y = (rect.Height() - cyIcon + 1) / 2; uc;QSVWGy8
// Draw the icon 9Uh nr]J.
dc.DrawIcon(x, y, m_hIcon); Y~M H
} ]7{-HuQ8>}
else ktKT=(F&
{ hC= ="4 -
CDialog::OnPaint(); GQ9g $&T
} ub]
w"N
} b}r3x&)
~UJ_Rr54
HCURSOR CCaptureDlg::OnQueryDragIcon() KcjP39@I
{ I*K~GXWs#
return (HCURSOR) m_hIcon; DavG=kvd
} NASRr
)Hy|K1
void CCaptureDlg::OnCancel() pc%_:>
{ 1{V* (=Tp
if(bTray) xTL"%'|
DeleteIcon(); SLc'1{
CDialog::OnCancel(); x?'%
} qEr[fC@x
x^2/jUc#B
void CCaptureDlg::OnAbout() T+h{Aeg
{ zEfD{I
CAboutDlg dlg; 0 _}89:-
dlg.DoModal(); {VG[m@
} L0 2~FT
EsB'nf r
void CCaptureDlg::OnBrowse() 2(//slP
{ $yFuaqG`Wo
CString str; em!R9J.
BROWSEINFO bi; _Pi:TxY
char name[MAX_PATH]; N|2
ZeroMemory(&bi,sizeof(BROWSEINFO)); m(:qZW
bi.hwndOwner=GetSafeHwnd(); Ec*7n6~9
bi.pszDisplayName=name; {; cB?II
bi.lpszTitle="Select folder"; NOp=/
bi.ulFlags=BIF_RETURNONLYFSDIRS; &(^u19TKl
LPITEMIDLIST idl=SHBrowseForFolder(&bi); X]"OW
if(idl==NULL) ^>{;9lo<
return; +/86w59
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); %E7.$Gj%
str.ReleaseBuffer(); ]u ~Fn2
m_Path=str; m+{: ^
if(str.GetAt(str.GetLength()-1)!='\\') U2lC !j%K
m_Path+="\\"; @M^QhHs
UpdateData(FALSE); VhI IW"1
} ]mo<qWRc>p
N:jiZ)
void CCaptureDlg::SaveBmp() n12c075
{ P\6T4s
CDC dc; ^GaPpm
dc.CreateDC("DISPLAY",NULL,NULL,NULL); DK_v{R
CBitmap bm; u!Nfoq&'u
int Width=GetSystemMetrics(SM_CXSCREEN); V?dK *8s
int Height=GetSystemMetrics(SM_CYSCREEN); k:)u7A+
bm.CreateCompatibleBitmap(&dc,Width,Height); LEnP"o9ZW
CDC tdc; u6Qf*_- K
tdc.CreateCompatibleDC(&dc); i$^B-
CBitmap*pOld=tdc.SelectObject(&bm); oBNX8%5w
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); T'b/]&0Tio
tdc.SelectObject(pOld); K7xWE,y
BITMAP btm; LQ(5D_yG.
bm.GetBitmap(&btm); 'uf\.F
DWORD size=btm.bmWidthBytes*btm.bmHeight; q&Tn>B
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); H~dHVQtJZ
BITMAPINFOHEADER bih; !MJe+.
bih.biBitCount=btm.bmBitsPixel; ,Lun-aMd
bih.biClrImportant=0; L}jF#*Q%
bih.biClrUsed=0; vG<pc_ak
bih.biCompression=0; UUMdZ+7
bih.biHeight=btm.bmHeight; 1^f.5@tV
bih.biPlanes=1; uQu/(5
bih.biSize=sizeof(BITMAPINFOHEADER); >g>`!Sf
bih.biSizeImage=size; =GKS;d#/
bih.biWidth=btm.bmWidth; MYw8wwX0kJ
bih.biXPelsPerMeter=0; k8
;uC~L
bih.biYPelsPerMeter=0; ;64mf`
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); 2Jo~m_
static int filecount=0; +fd@K
CString name; Vl 19Md
name.Format("pict%04d.bmp",filecount++); 95^i/6Gl!P
name=m_Path+name; Gkv~e?Kc~^
BITMAPFILEHEADER bfh; pPyvR;NJ
bfh.bfReserved1=bfh.bfReserved2=0; O%JsUKV
bfh.bfType=((WORD)('M'<< 8)|'B'); EwD3d0udL
bfh.bfSize=54+size; `kNi*I^
bfh.bfOffBits=54; )o9Q5Lq
CFile bf; :K^gu%,&$
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ S'!q}|7X3
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); =%3b@}%HqS
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); `e $n$Bh
bf.WriteHuge(lpData,size); ~3bZ+*H>
bf.Close(); H\| ]!8w5Z
nCount++; V'"I9R'1
} K/2. 1o;9
GlobalFreePtr(lpData); {;&B^uz
]
if(nCount==1) 6
tc:A5mK
m_Number.Format("%d picture captured.",nCount); S~k*r{?H})
else 6hM]%
m_Number.Format("%d pictures captured.",nCount); sp=OT-Pfp
UpdateData(FALSE); !0ce kSesr
} Y8%0;!T
|/;U)M
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) e`Co,>W/
{ ?jri!]ux#
if(pMsg -> message == WM_KEYDOWN) *!g 24
{ ;Rhb@]X
if(pMsg -> wParam == VK_ESCAPE) dCZ\ S91q
return TRUE; [Y$5zeA
if(pMsg -> wParam == VK_RETURN) 3duG.iUlL
return TRUE; ;NH~9# t:
} |As2"1_f
return CDialog::PreTranslateMessage(pMsg); bR`rT4.F
} JAlU%n?R
U~*c#U"bh
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) iUI y,Y
{ Re*|$r#
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ ,\o<y|+`S
SaveBmp(); n$XdSh/
return FALSE; y !<'rg
} .!(,$'(@=
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ Z&FkLww
CMenu pop; 3ar=1_Ar
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); aqs%m (
CMenu*pMenu=pop.GetSubMenu(0); J]}FC{CD!
pMenu->SetDefaultItem(ID_EXITICON); "F-Y^
CPoint pt; E
&7@#'l
GetCursorPos(&pt);
c6Lif)4
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); Q !9HA[Ly
if(id==ID_EXITICON) 'lhP!E_)q
DeleteIcon(); M[aT2A
else if(id==ID_EXIT) 7L=T]W
OnCancel(); @iU%`=ziz
return FALSE; .3VK;au\\
} #>8T*B
LRESULT res= CDialog::WindowProc(message, wParam, lParam); e,f ;
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) W.A1m4l58R
AddIcon(); -<^jGrb
return res; 8zdT9y|Ig
} r^$\t0h(U8
6hkkNXqkf
void CCaptureDlg::AddIcon() [N)#/6j
{ gbm0H-A:*
NOTIFYICONDATA data; Yd'H+r5b
data.cbSize=sizeof(NOTIFYICONDATA); ajn-KG!A
CString tip; c[SU5 66y
tip.LoadString(IDS_ICONTIP); M
h`CP
data.hIcon=GetIcon(0); k$C"xg2
data.hWnd=GetSafeHwnd(); Dp*:Q){>E
strcpy(data.szTip,tip); 8q?;2w\l
data.uCallbackMessage=IDM_SHELL; >']+OrQH
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; C"w,('~@kW
data.uID=98; GDF{Lf)/v
Shell_NotifyIcon(NIM_ADD,&data); U1l0Uke
ShowWindow(SW_HIDE); x6LjcRS|
bTray=TRUE; KNy`Lj)VPY
} -#Np7/
D7)(D4S4
void CCaptureDlg::DeleteIcon() '/k^C9~m
r
{ tNU-2r
NOTIFYICONDATA data; U\Ct/U&A?
data.cbSize=sizeof(NOTIFYICONDATA); tqK=\{U
data.hWnd=GetSafeHwnd(); )S^z+3p
data.uID=98; wG+=}1X
Shell_NotifyIcon(NIM_DELETE,&data); 3[VWTq)D=
ShowWindow(SW_SHOW); tJ"az=?
SetForegroundWindow(); PdT83vOCE
ShowWindow(SW_SHOWNORMAL); hp*<x4%*a"
bTray=FALSE; ?cJY
B)
} jZRh KT
MU|{g
5/
)
void CCaptureDlg::OnChange() <"?*zx&