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:
2\F'So
W~s:SN 一、实现方法
8A'SMJi y4H/CH$% 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
upq3)t_ T`c:16I #pragma data_seg("shareddata")
8 v da" HHOOK hHook =NULL; //钩子句柄
y-Lm^GW4 UINT nHookCount =0; //挂接的程序数目
J?jxD/9Yb static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
_J,*0~O$ static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
Jt)J1CAYo static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
F'ez{B\AX static int KeyCount =0;
N_(-\\mq static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
VuH}@ #pragma data_seg()
tn |H~iF{ khQfLA 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。
`'pfBVBz eGWwPSIp 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~F'FN$ =~q$k BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
`Y,Rk cKey,UCHAR cMask)
I~-sBMm(w {
6~6 vwp BOOL bAdded=FALSE;
xSq+>, b for(int index=0;index<MAX_KEY;index++){
:1~4X if(hCallWnd[index]==0){
kAW2vh hCallWnd[index]=hWnd;
-)DxF<8B HotKey[index]=cKey;
4OG1_6K HotKeyMask[index]=cMask;
i\*
b<V bAdded=TRUE;
%V(U]sbV KeyCount++;
%B\VY+ break;
W>[TFdH? }
>=3oe.$) }
w ;:{ return bAdded;
+77j2W_0 }
:2~2j-m //删除热键
<4I`|D3@ BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
v}@Uc-( {
HYNp vK BOOL bRemoved=FALSE;
C~M,N|m+^ for(int index=0;index<MAX_KEY;index++){
qI[AsM+ if(hCallWnd[index]==hWnd){
Io('kCOR; if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
/5Yl, P hCallWnd[index]=NULL;
HrRw HotKey[index]=0;
S4!B;,?AxN HotKeyMask[index]=0;
&b]_#c bRemoved=TRUE;
j(c;r> KeyCount--;
)t,efg break;
k?Njge6@ }
f2ck=3 }
) LohB,? }
"}0)~,{xB return bRemoved;
Ls&-8 }
-R`nitf Y{8}z
ZD JRDIGS_~ DLL中的钩子函数如下:
c7R6.T /^`do3a} LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
g? C<@ {
$Ut1vp1$ BOOL bProcessed=FALSE;
u>V~:q\X if(HC_ACTION==nCode)
Qn/6gRLj {
v\5`n@}4 if((lParam&0xc0000000)==0xc0000000){// 有键松开
\{o<-S;h switch(wParam)
1Q$/L+uJ5 {
=3GgfU5k case VK_MENU:
~;oaW<" MaskBits&=~ALTBIT;
IkQ,#Bsb[ break;
bFJ>+ {# case VK_CONTROL:
'Ojxzz*tT MaskBits&=~CTRLBIT;
| 8akp break;
Iz!]LW case VK_SHIFT:
Q%0
N\ MaskBits&=~SHIFTBIT;
\CYKj_c break;
&p55Cg@e) default: //judge the key and send message
B06W(y,3Q> break;
1:q`KkJx }
VzWH9%w for(int index=0;index<MAX_KEY;index++){
)c.!3n/pb if(hCallWnd[index]==NULL)
2UTmQOm continue;
0 l+Jq if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
!"
@<! {
S]gV! Q4% SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
<{z-<D; bProcessed=TRUE;
yY"n: &T( }
-e_pw,5c ' }
+_ $!9m }
H9[0-Ur5 else if((lParam&0xc000ffff)==1){ //有键按下
w|-m*v
. switch(wParam)
0fN;
L;v {
h<g2aL21?F case VK_MENU:
QF$s([ MaskBits|=ALTBIT;
(?[%u0%_ break;
_I0=a@3 case VK_CONTROL:
+O7GgySx MaskBits|=CTRLBIT;
HzAw
rC break;
g!`^!Q/($ case VK_SHIFT:
sLc,Dx"+ MaskBits|=SHIFTBIT;
$IJ"fs break;
PD-*rG ` default: //judge the key and send message
;/!o0:m^I break;
3E!3kSh| }
bMqFrG for(int index=0;index<MAX_KEY;index++){
ah#jvp if(hCallWnd[index]==NULL)
+*wo iSD continue;
GFvLd:p` [ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
HHT8_c'CC# {
U(hIT9 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
c7]0>nU; bProcessed=TRUE;
9x#Tj/5% }
?:+p#&I }
#d$lN}8 }
4@M`BH` if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
9dva]$^:*1 for(int index=0;index<MAX_KEY;index++){
7MhaLkB_6 if(hCallWnd[index]==NULL)
a._>?rVy continue;
vJ>o9:(6 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
&_'3(xIO SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
#`%V/ #YK //lParam的意义可看MSDN中WM_KEYDOWN部分
JHJ]BMm }
D=M'g}l }
mJsU7bD` }
oW6b3Q/B return CallNextHookEx( hHook, nCode, wParam, lParam );
/#[mV(k }
NZ%v{? RAA,%rRhu( 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
l=<},_]{ u&e?3qKX( BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
E*L5D4Kw BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
P9M%B2DQ6f
*,,:;F^ 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
n
m.5!. WdbHT|.Aj LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
[f]:hJi {
HE+D]7^ if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
%
"^CrG {
O{EbL5p //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
+^[SXI^JaJ SaveBmp();
5-:H return FALSE;
`~h8D9G }
ov1#BeQ …… //其它处理及默认处理
Mz;KXP }
*~d<]U5h &x/Z{ut ,E2c9V' 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
zT'(I6S:) XLlJ|xhY-K 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
P8 R^46 Q$Q:Jm53 二、编程步骤
-9R.mG dlMjy$/T 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
w^[:wzF0 '_" S/X+v 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
U}GO* + _!%@V= 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
5qkyi]/U8 ',I$`h 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;
vQ>8>V _Bhd@S! 5、 添加代码,编译运行程序。
=P,pW Kn}Y7B{ 三、程序代码
pAyUQe;X# R4S))EHg ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
)#,a'~w #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
h3Nbgxa. #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
-$`q:j #if _MSC_VER > 1000
fdgjTX #pragma once
BipD8`a #endif // _MSC_VER > 1000
X&A2:A 6\+ #ifndef __AFXWIN_H__
F`.W 9H3 #error include 'stdafx.h' before including this file for PCH
i1!Y{ #endif
&0OH:P% #include "resource.h" // main symbols
o}yA{<" class CHookApp : public CWinApp
|oR#j
` {
vhN6_XD public:
m[Qr>= " CHookApp();
e<"sZK // Overrides
[!4V_yOb // ClassWizard generated virtual function overrides
vX$|/74 //{{AFX_VIRTUAL(CHookApp)
sAjN<P public:
6ciA|J'MR virtual BOOL InitInstance();
LWV^'B_X- virtual int ExitInstance();
8x9;3{R //}}AFX_VIRTUAL
#y1M1O g //{{AFX_MSG(CHookApp)
vyT-!mC // NOTE - the ClassWizard will add and remove member functions here.
$LtCI // DO NOT EDIT what you see in these blocks of generated code !
`8;\}6:"1 //}}AFX_MSG
Ee=!bv(%70 DECLARE_MESSAGE_MAP()
,n$HTWa@0 };
9<5ii LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
h#uk-7 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
1(jx.W3 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
|2I/r$Q BOOL InitHotkey();
cd4HbSp BOOL UnInit();
!iUT Re #endif
6`5DR~ $"3cN& //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
xC2y/? #include "stdafx.h"
_w7yfZLv+ #include "hook.h"
h-\+# .YP #include <windowsx.h>
*?o 'sTH #ifdef _DEBUG
&& WEBQ #define new DEBUG_NEW
b>nwX9Y/U #undef THIS_FILE
T|uG1 static char THIS_FILE[] = __FILE__;
_"82W^W i #endif
Nk?/vMaw #define MAX_KEY 100
]F"@+_E #define CTRLBIT 0x04
v5*JBW+c* #define ALTBIT 0x02
2D"aAI<P #define SHIFTBIT 0x01
I1JF2 "{c #pragma data_seg("shareddata")
mA5sK?W HHOOK hHook =NULL;
\Lm`jU(:l UINT nHookCount =0;
"f-HOd\= static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
i \@a&tw static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
D*ZswHT{y static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
"1hFx=W+\ static int KeyCount =0;
'w_Qs~6~{ static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
P@U2Q%\ #pragma data_seg()
l$C
Y
gm HINSTANCE hins;
_:!7M^IU void VerifyWindow();
;;Jx1Q BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
Pe`jNiI //{{AFX_MSG_MAP(CHookApp)
`Yyi;!+0 // NOTE - the ClassWizard will add and remove mapping macros here.
`dIwBfg_ // DO NOT EDIT what you see in these blocks of generated code!
aO*v"^oF //}}AFX_MSG_MAP
KuMH,rXF END_MESSAGE_MAP()
n{"a0O l<yYfGO CHookApp::CHookApp()
Oki{)Ssy {
"fu@2y4^ // TODO: add construction code here,
*4c5b'u // Place all significant initialization in InitInstance
=lx~tSiS }
c4}|a1R\= 6Z{(.'Be CHookApp theApp;
xU
|8.,@ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
{6>$w/+~ {
0_-P~^A BOOL bProcessed=FALSE;
'v5q/l if(HC_ACTION==nCode)
B\+uRiD8w {
18>v\Hi< if((lParam&0xc0000000)==0xc0000000){// Key up
K8h\T4 switch(wParam)
W?du ] {
F:LrQu case VK_MENU:
[$Jsel<T= MaskBits&=~ALTBIT;
0m4'm<2m break;
<A&Zl&^1 case VK_CONTROL:
c;88Wb<|W MaskBits&=~CTRLBIT;
)<.y{_QUN break;
'-P+|bZW4 case VK_SHIFT:
dAi.^! ! MaskBits&=~SHIFTBIT;
WLCr ~r^ break;
5X:3'* default: //judge the key and send message
W4)bEWO+q break;
yn.[- }
TpxAp',#7 for(int index=0;index<MAX_KEY;index++){
X5+$:jq& if(hCallWnd[index]==NULL)
ix5<h } continue;
Twk<< if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
d1 lxz?r {
e /L([ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
HP:[aR!2P bProcessed=TRUE;
AL|3_+G }
D{JwZL@7k2 }
$5>m\wrl }
f0*_& rP else if((lParam&0xc000ffff)==1){ //Key down
=:\5* switch(wParam)
SA?1*dw) {
=D)ADZ\<r case VK_MENU:
E|W7IgS MaskBits|=ALTBIT;
Us% _'}(/U break;
?h,.1Tb case VK_CONTROL:
KIY9?B=+ MaskBits|=CTRLBIT;
o 9d|XY_ break;
~iq=J5IN# case VK_SHIFT:
X#o;`QM MaskBits|=SHIFTBIT;
_.SpU`>/f break;
[<nd+3E default: //judge the key and send message
)-25?B break;
`tl -] ^Y2 }
fP
llN8n for(int index=0;index<MAX_KEY;index++)
<|hrmwk| {
R0-Y2v if(hCallWnd[index]==NULL)
zO0K*s.yK continue;
dcfwUjp[ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
w4l]rH {
4|DN^F~iut SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
@?&
i bProcessed=TRUE;
(t,mtdD#1 }
:0Fc E,1 }
;Pvnhy }
18]Q4s8E if(!bProcessed){
EBpg for(int index=0;index<MAX_KEY;index++){
HstL'{&,-m if(hCallWnd[index]==NULL)
h;~NA}> continue;
1G'pT$5& if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
co'qVsOiH SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
:N' }
;s#]."v_= }
"+hUt }
fyxc4-D return CallNextHookEx( hHook, nCode, wParam, lParam );
^1Bk*?Yx\x }
y (=0 |7!B k$(vA BOOL InitHotkey()
T#HF!GH] {
^MVOaV65 if(hHook!=NULL){
Y@+9Ukd/ nHookCount++;
[YJ*zO return TRUE;
u\km_e }
AG"iS<u else
&LQfs4}a, hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
,2P/[ : if(hHook!=NULL)
^Zlbs
goZ nHookCount++;
zR?1iV.] return (hHook!=NULL);
qipS`:TER }
{vur9L BOOL UnInit()
rym*W\AWx {
#r]GnC, if(nHookCount>1){
C}\kp0mz nHookCount--;
!>Q{co' return TRUE;
eQIS`T }
y|3!E>Up BOOL unhooked = UnhookWindowsHookEx(hHook);
Pt'=_^Io if(unhooked==TRUE){
2L=(-CH9] nHookCount=0;
\!k\%j9 hHook=NULL;
A@reIt }
?28)l
4 Ml return unhooked;
{_ZbPPh;M" }
nFwdW@E9 =.,XJIw& BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
:)Da^V {
Me^L%%:@ BOOL bAdded=FALSE;
=q[ynZ8O\w for(int index=0;index<MAX_KEY;index++){
1"T&B0G3l if(hCallWnd[index]==0){
E cd~H+ hCallWnd[index]=hWnd;
w<Iq:3
HotKey[index]=cKey;
TBgiA}|\D HotKeyMask[index]=cMask;
?yA
2N; bAdded=TRUE;
_V` QvnT} KeyCount++;
~L.5;8a3Pe break;
Gz7,g
Y }
&+/$~@OK }
Zm#,Ike?# return bAdded;
'@"A{mrE }
<XzRRCYQ ='(;!3ZH BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
?l`|j* {
uC2 5pH" BOOL bRemoved=FALSE;
+\J+?jOC4S for(int index=0;index<MAX_KEY;index++){
0- u,AD if(hCallWnd[index]==hWnd){
#?~G\Ux0/ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
,Uy~O(Ft hCallWnd[index]=NULL;
Po.izE!C HotKey[index]=0;
P+,YWp HotKeyMask[index]=0;
g5
y*-t bRemoved=TRUE;
^;@!\Rc KeyCount--;
vQ[ TcV break;
E%$[*jZ }
e{.P2rnh }
xP 3>8Y }
SnoEi~Da return bRemoved;
,;yaYF6|/ }
UiZ1$d* ?y^ ix+M void VerifyWindow()
IOl0=+p {
y <P1VES for(int i=0;i<MAX_KEY;i++){
`Vh&XH\S if(hCallWnd
!=NULL){ ;\iu*1>Z,&
if(!IsWindow(hCallWnd)){ @! jpJ}
hCallWnd=NULL; I2?g'tz
HotKey=0; DhG{hQ[[
HotKeyMask=0; @>[3[;
KeyCount--; B:)vPO+ d
} %3q7i`AZ
} $EZr@n
} h5[.G!
} Qe=eer~jI
PH!rWR
BOOL CHookApp::InitInstance() wT:mfS09N
{ Fh.ZsPn,m
AFX_MANAGE_STATE(AfxGetStaticModuleState()); `>`{DEDx{5
hins=AfxGetInstanceHandle(); EHt(!;?q
InitHotkey(); &y ~GTEP
return CWinApp::InitInstance(); S|_lbMZM
} Q>\9/DjUp
&I/C^/F&
int CHookApp::ExitInstance() Tg v]30F)
{ wA6<BujD
VerifyWindow(); weIlWxy
UnInit(); )lVplAhZD
return CWinApp::ExitInstance(); QB7^8O!<
} h'A
#Yp0,
|l,0bkY@&
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file wE_#b\$=b
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) 9bD ER
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ `e5f69"
#if _MSC_VER > 1000 6)9X+U@
#pragma once \ X;)Kt"
#endif // _MSC_VER > 1000 1i
6>~
=7zvp,B
class CCaptureDlg : public CDialog d C6t+
{ o[nr)
// Construction qox@_
public: |exjrsmM*
BOOL bTray; bd`}2vr
BOOL bRegistered; Y^,G}
&p
BOOL RegisterHotkey(); 0j[%L!hny
UCHAR cKey; e'dZ2;X$zo
UCHAR cMask; /x&52~X5-
void DeleteIcon(); wdEQB-dA
void AddIcon(); yzJTNLff
UINT nCount; mQ:5(]v
void SaveBmp(); T?8N$J
CCaptureDlg(CWnd* pParent = NULL); // standard constructor pg4jPuCM
// Dialog Data t8S,C4
//{{AFX_DATA(CCaptureDlg) 3d>xg%?
enum { IDD = IDD_CAPTURE_DIALOG }; S{)'1J_0
CComboBox m_Key; q6V\n:hKV
BOOL m_bControl; q]z%<`.9*
BOOL m_bAlt; 9'h4QF+Y
BOOL m_bShift; Y_M3-H=0
CString m_Path; ~H`(z zk
CString m_Number; |FZIUS{]
//}}AFX_DATA _,E! <
// ClassWizard generated virtual function overrides H,U qU3b3
//{{AFX_VIRTUAL(CCaptureDlg) sTFRu
public: `xu/|})KI
virtual BOOL PreTranslateMessage(MSG* pMsg); 08;t%[R
protected: i^6g1"h
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 3AarRQWsn
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); 1EA} [x
//}}AFX_VIRTUAL m-}6DN
// Implementation ZbLN:g}
protected: c"CF&vTp
HICON m_hIcon; $4]"g}_
// Generated message map functions Y1U\VU
//{{AFX_MSG(CCaptureDlg) n ,CMGe^:
virtual BOOL OnInitDialog(); ~ (d#T |ez
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); >[TJ-%V>oR
afx_msg void OnPaint(); 6R%NjEW:
afx_msg HCURSOR OnQueryDragIcon(); kG]FB.@bG
virtual void OnCancel(); o`ijdg!5qG
afx_msg void OnAbout(); G:?l;+P1
afx_msg void OnBrowse(); V?+Y[Q
afx_msg void OnChange(); Z)H9D(Za
//}}AFX_MSG [}=/?(5
DECLARE_MESSAGE_MAP() tvvRHvL
}; t[?O*>
#endif u7ER
/km'#f)/
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file a gxR
V
#include "stdafx.h" )l*6zn`z
#include "Capture.h" YNWAef4
#include "CaptureDlg.h" "r.eN_d
#include <windowsx.h> }e0)=*;l
#pragma comment(lib,"hook.lib") Zk75GC
#ifdef _DEBUG ,[0rh%%j
#define new DEBUG_NEW <{b#nPc!,#
#undef THIS_FILE PEHaH"|([=
static char THIS_FILE[] = __FILE__; L#NW<T
#endif V/i7Z h#2:
#define IDM_SHELL WM_USER+1 !Typ_Cs
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); vaUUesytt
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); t(?tPt4zp
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; 9<S};I;
class CAboutDlg : public CDialog :p,DAt}
{ Zp*0%x!e
public: F
B7.b
CAboutDlg(); 7Yd]#K{$
// Dialog Data {`CmE/`{
//{{AFX_DATA(CAboutDlg) E0Jk=cq
enum { IDD = IDD_ABOUTBOX }; .f]2%utHB
//}}AFX_DATA yu]nK-Y7S
// ClassWizard generated virtual function overrides H@pF3gh
//{{AFX_VIRTUAL(CAboutDlg) N8w@8|KM
protected: w0N8a%
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support e4?p(F-x(
//}}AFX_VIRTUAL ]
cY
// Implementation $+.!(Js"K
protected: L;s,x V
//{{AFX_MSG(CAboutDlg) {!rpE7P-
//}}AFX_MSG -R-|[xN
DECLARE_MESSAGE_MAP() G Za<
}; b".e6zev
WF0[/Y
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) $S _VR
{ >,. x'{
//{{AFX_DATA_INIT(CAboutDlg) 2Sg,b8
//}}AFX_DATA_INIT wth*H$iF
} -v7O*xm"
W6[# q%o
void CAboutDlg::DoDataExchange(CDataExchange* pDX) z?i{2Fz6
{ X6g{qz Hg_
CDialog::DoDataExchange(pDX); lwuslt*E/
//{{AFX_DATA_MAP(CAboutDlg) \a}W{e=FNT
//}}AFX_DATA_MAP 51lN,VVD
} geB]~/-p
Ue22,Pp6
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 8f0Ytfhw
//{{AFX_MSG_MAP(CAboutDlg) 4?)-;Hx_X
// No message handlers t&99ZdE
//}}AFX_MSG_MAP &;O)Dw
END_MESSAGE_MAP() IrZ!.5%tV
urK[v
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) =-U8^e_Y
: CDialog(CCaptureDlg::IDD, pParent) YKT=0
{ IJt8*
cw
//{{AFX_DATA_INIT(CCaptureDlg) d*{NAq'9X
m_bControl = FALSE; V
K)%Us-
m_bAlt = FALSE; EsR$H2"
m_bShift = FALSE; /Sag_[i
m_Path = _T("c:\\"); bAa+MB#A
m_Number = _T("0 picture captured."); ^E3 i]Oem
nCount=0; Y]R;>E5o|
bRegistered=FALSE;
3l8k O
bTray=FALSE; :>'4@{'
//}}AFX_DATA_INIT 6#rj3^]
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 j >wT-s
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); `K^j:fE7n
} 8P#jC$<
DNN60NX 5Q
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) ?g21U97Q
{ Y$SwQ;wl
CDialog::DoDataExchange(pDX); vtS[Tkk|A
//{{AFX_DATA_MAP(CCaptureDlg) Os# V=P
DDX_Control(pDX, IDC_KEY, m_Key); J_=42aHO
DDX_Check(pDX, IDC_CONTROL, m_bControl); M)1?$'Aq
DDX_Check(pDX, IDC_ALT, m_bAlt); T8ftBIOi
DDX_Check(pDX, IDC_SHIFT, m_bShift); ^5yFb=2
DDX_Text(pDX, IDC_PATH, m_Path); m"CsJ'\ors
DDX_Text(pDX, IDC_NUMBER, m_Number); 4pfv?!Oj
//}}AFX_DATA_MAP 5@xl/
} ;%H/^b.c
@a{1vT9b
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) N$i|[>`j
//{{AFX_MSG_MAP(CCaptureDlg)
`>mT/Rmb@
ON_WM_SYSCOMMAND() v3vQfcxR
ON_WM_PAINT() ^Q'^9M2)
ON_WM_QUERYDRAGICON() A=5A8B1
ON_BN_CLICKED(ID_ABOUT, OnAbout) jK{)gO
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) \:/:S"-
ON_BN_CLICKED(ID_CHANGE, OnChange) _Bh ^<D-
//}}AFX_MSG_MAP CQ+WBTiC
END_MESSAGE_MAP() ZV;lr Vv
s28rj6q
BOOL CCaptureDlg::OnInitDialog() '[nH]N
{ j\Z/R1RcW
CDialog::OnInitDialog(); X-&U-S;
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); *mgK^9<
ASSERT(IDM_ABOUTBOX < 0xF000); |rDv!m
CMenu* pSysMenu = GetSystemMenu(FALSE); 0Q1sJDa.
if (pSysMenu != NULL) xxlYn9ke
{ "$VqOSo
CString strAboutMenu; @+3@Z?!SZ
strAboutMenu.LoadString(IDS_ABOUTBOX); ARD&L$AX
if (!strAboutMenu.IsEmpty()) ^Cs5A0xo#s
{ oq<n5
pSysMenu->AppendMenu(MF_SEPARATOR); &Jr~)o
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); `2M`;$~ 5
} :i4>&4j
}
%0z&k!P
SetIcon(m_hIcon, TRUE); // Set big icon SbLx`]rI
SetIcon(m_hIcon, FALSE); // Set small icon #$GDKK
m_Key.SetCurSel(0); O#e' .n!rI
RegisterHotkey(); BWbM$@'x
CMenu* pMenu=GetSystemMenu(FALSE); wlM"Zt
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); 'NJCU.lKm
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); 5+gSpg]i
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); YRy5.F%?
return TRUE; // return TRUE unless you set the focus to a control $RYsqX\v
} CqRG !J
BN?OvQ
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) ?>_[hZ
{ WzC_M>_
if ((nID & 0xFFF0) == IDM_ABOUTBOX) %z(nZ%,Z
{ -}B&>w,5
CAboutDlg dlgAbout; k8}*b&+{vz
dlgAbout.DoModal(); g)<t=+a
} Lwg@*:`d
else 0koC;(<n
{ "Yo.]PU
CDialog::OnSysCommand(nID, lParam); pL{h1^O}
} J 1?)z+t9~
} $LLy#h?V]
>^8=_i !
void CCaptureDlg::OnPaint() =c-,uW11[
{ 1?6;Oc^
if (IsIconic()) [HKTXF{n
{ f\ wP}c'
CPaintDC dc(this); // device context for painting d{UyiZm\
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); ^b{w\HZ
// Center icon in client rectangle Wn(pz)+Y
int cxIcon = GetSystemMetrics(SM_CXICON); 4&Q.6HkL
int cyIcon = GetSystemMetrics(SM_CYICON); O;u&>BMk
CRect rect; ~"E@do("
GetClientRect(&rect); a]<y*N?qu
int x = (rect.Width() - cxIcon + 1) / 2; C>d_a;pX
int y = (rect.Height() - cyIcon + 1) / 2; +w
;2k w
// Draw the icon A{5^A)$
dc.DrawIcon(x, y, m_hIcon); M>pcG.6V
} `Ns$HV
else ZYy,gu<
{ Q)\~=/Lb
CDialog::OnPaint(); y^o*wz:D*
} bIR AwktD
} R89;<,Ie
r*|#*"K"a
HCURSOR CCaptureDlg::OnQueryDragIcon() ay\ e#)
{ ?I6us X9$
return (HCURSOR) m_hIcon; nV|H5i;N7
} e B`7C"Z
K[%)_KW
void CCaptureDlg::OnCancel() ,DN>aEu1
{ : GZx-
if(bTray) ?N
6'*2{NT
DeleteIcon(); v'"0Ya
CDialog::OnCancel(); =tJ}itcJ'
} <p<J;@
|fx*F}1
void CCaptureDlg::OnAbout() Q3t9J"=1g
{ <+1d'VQ2
CAboutDlg dlg; zj ;'0Zu
dlg.DoModal(); <q
V<dK&W
} H'fmQf
de?Bn+mvi.
void CCaptureDlg::OnBrowse() ]]\\Y|0
{ ,k*g`OTW
CString str; l2)) StEm
BROWSEINFO bi; WUQlAsme
char name[MAX_PATH]; YQyf:xJ
ZeroMemory(&bi,sizeof(BROWSEINFO)); mHqw,28}
bi.hwndOwner=GetSafeHwnd(); 2|xNT9RW
bi.pszDisplayName=name; rZ0+mS'/G
bi.lpszTitle="Select folder"; <,%qt_
!
bi.ulFlags=BIF_RETURNONLYFSDIRS; W}<'Y@[,
LPITEMIDLIST idl=SHBrowseForFolder(&bi); lg)jc3
if(idl==NULL) 1gEeZ\B-&
return; 1m*fkM#
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); dqU
bJc]
str.ReleaseBuffer(); ?mdgY1
m_Path=str; a#iJXI
if(str.GetAt(str.GetLength()-1)!='\\') 'eNcQJh
m_Path+="\\"; Zrtyai{8l
UpdateData(FALSE); -^m]Tb<u
} 29(s^#e8A
q[l!kC+Eh
void CCaptureDlg::SaveBmp() \,<5U
F0
{ zJnF#G
CDC dc; 0v%ZKvSID
dc.CreateDC("DISPLAY",NULL,NULL,NULL); EgAM,\
CBitmap bm; W0n/B&C
int Width=GetSystemMetrics(SM_CXSCREEN); o ]UG*2
int Height=GetSystemMetrics(SM_CYSCREEN); 5&WYL
bm.CreateCompatibleBitmap(&dc,Width,Height); j[zo~Y4z
CDC tdc; #HjiE
tdc.CreateCompatibleDC(&dc); Ww9%6 #it
CBitmap*pOld=tdc.SelectObject(&bm); &,pL3Qos
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); =2[5g!qX
tdc.SelectObject(pOld); '.jr" 3u
BITMAP btm; J?d&+mt
bm.GetBitmap(&btm); KZFnp=i
DWORD size=btm.bmWidthBytes*btm.bmHeight; (Sr D
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); D -Goi-4
BITMAPINFOHEADER bih; !,f{I5/
bih.biBitCount=btm.bmBitsPixel; P&Vqr
bih.biClrImportant=0; b5kw*h+/'h
bih.biClrUsed=0; C?v_ig
bih.biCompression=0; [<;4$}f\
bih.biHeight=btm.bmHeight; 6xk~Bt
bih.biPlanes=1; v7?sXW
bih.biSize=sizeof(BITMAPINFOHEADER); }P8@\2@=T
bih.biSizeImage=size; ;Kq/[$~0
bih.biWidth=btm.bmWidth; FdR!jt
bih.biXPelsPerMeter=0; \ W3\P=
bih.biYPelsPerMeter=0; gxry?':
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); U$;FOl
static int filecount=0; AV"fOK;#A
CString name; ^oNk}:>
name.Format("pict%04d.bmp",filecount++); 0/7y&-/(
name=m_Path+name; zJE$sB.f
BITMAPFILEHEADER bfh; Bvke@|]kW
bfh.bfReserved1=bfh.bfReserved2=0; Q{ hXP*5
bfh.bfType=((WORD)('M'<< 8)|'B'); 1bW[RK;GE
bfh.bfSize=54+size; =|)W#x9=
bfh.bfOffBits=54; N# o" W
CFile bf; %#!pAUP\&
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ F9DY\EI
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); [X +E
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); Q~R7 ]AyR
bf.WriteHuge(lpData,size); 3l?D%E]P
bf.Close(); 7Sc._G{[%
nCount++; Lq#>N_72W0
} g<,kV(_7
GlobalFreePtr(lpData); =.q
Zgcg
if(nCount==1) $i s|B9B
m_Number.Format("%d picture captured.",nCount); JZQT}
else Gw3H1:yo
m_Number.Format("%d pictures captured.",nCount); ]JQ';%dne
UpdateData(FALSE); *\9JIi 2
} %nU8 Ca
5(@P1Bi
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) }yde9b?F
{ >heFdKq1
if(pMsg -> message == WM_KEYDOWN) nwH'E
{ ]#n,DU}V
if(pMsg -> wParam == VK_ESCAPE) nJ!`^X5I
return TRUE; qA4w*{JN
if(pMsg -> wParam == VK_RETURN) yDwG,)m 4s
return TRUE; ;t'~
} &X0qH8W
return CDialog::PreTranslateMessage(pMsg); %O$4da"y
} &&Sl0(6x[T
{VWX?Mm
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) #b[B$
{ d,r%LjNI
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ {-28%
SaveBmp(); P'^#I[G'
return FALSE; &"^,Ubfcn"
} !{@!:m3w
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ d|UK=B^x
CMenu pop; Za+26#g
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); 7O3 \
CMenu*pMenu=pop.GetSubMenu(0); a78&<
pMenu->SetDefaultItem(ID_EXITICON); [I*BEJ;W'
CPoint pt; .Rq|F
GetCursorPos(&pt); /\=syl
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); L;a>J
if(id==ID_EXITICON) -]1F]d
DeleteIcon(); X{SD3j=G#
else if(id==ID_EXIT) /b *VFA/75
OnCancel(); 6qsT/
return FALSE; JJL#Y
} h= uv4&
LRESULT res= CDialog::WindowProc(message, wParam, lParam); OidF{I*O
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) wyqXD.of
AddIcon(); 3Lx]-0h
return res; <mE)&7C
} -V
Rby
t/?x#X
void CCaptureDlg::AddIcon() VGLE5lP X
{ (h NSzG\
NOTIFYICONDATA data; }nrl2yp:%
data.cbSize=sizeof(NOTIFYICONDATA); wgm?lfX<
CString tip; mT8")J|2
tip.LoadString(IDS_ICONTIP); :Gyv%>.
data.hIcon=GetIcon(0); $7q'Be@{
data.hWnd=GetSafeHwnd(); Z!Y ^iN
strcpy(data.szTip,tip); 3c<).aC0f
data.uCallbackMessage=IDM_SHELL; FsrGI
(x?
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; @/6cEiC+r\
data.uID=98; Go>_4)jy
Shell_NotifyIcon(NIM_ADD,&data); jPG&Ypm1
ShowWindow(SW_HIDE); Q_<CG[,6D1
bTray=TRUE; X(m&
} !^ko"^p
ZU%7m_ zO
void CCaptureDlg::DeleteIcon() (/J$2V5-
{ C^]y
iR-U
NOTIFYICONDATA data; 5;=,BWU
data.cbSize=sizeof(NOTIFYICONDATA); I 2JE@?
data.hWnd=GetSafeHwnd(); ?(Dk{-:T'
data.uID=98; RC5b'+E