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:
,]42v?
gO1`zP!9Z 一、实现方法
3zGxe- ID E3>D 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:
F+v? 2|03 4(|x@:wxm #pragma data_seg("shareddata")
=-1d m+P HHOOK hHook =NULL; //钩子句柄
Ojr{z UINT nHookCount =0; //挂接的程序数目
(,[m}Qb?! static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
%AXa(C\1 static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
Cd"O'<^Sb static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
Iy6"2$%a static int KeyCount =0;
?_(0cVi static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
#rF|X6P #pragma data_seg()
rhHX0+ #/MUiV 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
8s6[?=nM o_vK4%y( DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
srw5&s(3X <dLdSEw BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
M
g1E1kXe cKey,UCHAR cMask)
u&mB;:& {
Xu3o,k BOOL bAdded=FALSE;
E<>n0", for(int index=0;index<MAX_KEY;index++){
(Lo<3a-] if(hCallWnd[index]==0){
<RKh%4#~ hCallWnd[index]=hWnd;
=YE"6iU HotKey[index]=cKey;
1 nIb/nY HotKeyMask[index]=cMask;
:L&- bAdded=TRUE;
LoPWho[8 KeyCount++;
S%R:GZEf_ break;
:S{[^-" }
%j^[%&pT }
@G~T&6E! return bAdded;
.3Jggp }
wk<QYLEk //删除热键
dNB56E)5`J BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
(S&X??jfB5 {
kQRNVdiz BOOL bRemoved=FALSE;
]}<wS]1 for(int index=0;index<MAX_KEY;index++){
?tQUZO if(hCallWnd[index]==hWnd){
6,ylkf3 if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
/Uz2.Ua= hCallWnd[index]=NULL;
9@nX 6\, HotKey[index]=0;
_6;T
/_R= HotKeyMask[index]=0;
"9Sxj bRemoved=TRUE;
@=E@
*@g KeyCount--;
/NNe/7'l break;
hS OAjS }
#O7|&DqF{ }
aqK<}jy }
iL\<G}
I return bRemoved;
&$ia#j{l }
C6Ap
4 jt@k<#h~ gxycw4kz DLL中的钩子函数如下:
Sx5r u?$. !E'jd72O LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
_1VtVfiZ{ {
5Y"JRWC BOOL bProcessed=FALSE;
hp/}Z"A= if(HC_ACTION==nCode)
#6[FGM {
& ;ie+/B if((lParam&0xc0000000)==0xc0000000){// 有键松开
=mxmJFA switch(wParam)
vq
B)PL5) {
lBvQ?CJ<y case VK_MENU:
.ZJt MaskBits&=~ALTBIT;
sF:3|Yy0 break;
ZXsm9 case VK_CONTROL:
U{"&Jj MaskBits&=~CTRLBIT;
Wo<zvut8 break;
vZ\~+qV,A case VK_SHIFT:
EGf9pcUEO& MaskBits&=~SHIFTBIT;
3l0x~ break;
-5l74f!i default: //judge the key and send message
v<,?%(g)7 break;
qY]IX9'kV }
CL5u{i5 for(int index=0;index<MAX_KEY;index++){
cfyN)#9 if(hCallWnd[index]==NULL)
iEux`CcJ. continue;
=5a~xlBjD if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
L&+XFntR {
d}GO( SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
"<SK=W bProcessed=TRUE;
H1N_ }
Edj}\e*-J }
s(q\!\FS }
V/j+Z1ZW else if((lParam&0xc000ffff)==1){ //有键按下
<v&>&;>3 switch(wParam)
d nWh}! {
q%i2'yE case VK_MENU:
`PnB<rf:*1 MaskBits|=ALTBIT;
44B)=p7
break;
):E4qlB case VK_CONTROL:
m/r4f279 MaskBits|=CTRLBIT;
Dtl381F J break;
^|5bK_Z& case VK_SHIFT:
)s4#)E1
MaskBits|=SHIFTBIT;
O:"gJ4D break;
;]34l."85 default: //judge the key and send message
&ok2Xw break;
a*o#,T5A }
:PuJF`k for(int index=0;index<MAX_KEY;index++){
tRZCOEo4 if(hCallWnd[index]==NULL)
EtK,C~C}8 continue;
UbE*x2N if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
<ppM\$ {
=ltT6of@o SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
#lRkp.e bProcessed=TRUE;
)=V0 }
$rD&rsx6 }
7 [N1Vr(1 }
OWT5Bjl if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
+FRXTku( for(int index=0;index<MAX_KEY;index++){
'\Z54$ if(hCallWnd[index]==NULL)
_"6{Rb53v= continue;
:jKDM if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
by,"Orpwq; SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
23BzD^2a //lParam的意义可看MSDN中WM_KEYDOWN部分
k)oD }
hVo]fD|W }
%?1k}(qUeY }
02q]^3 return CallNextHookEx( hHook, nCode, wParam, lParam );
rwGY )9| }
73OFFKbsk y((I2g1rv 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:
Rm`_0}5 v@TP_Ka BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
y[BUWas( BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
jk,:IG ZgVYC4=Q-\ 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:
p@!{Sh (Vnv"= ( LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
^noKk6Aaa {
V6)\;c if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
avrf]raM| {
7'\<\oT
//lParam表示是按下还是松开,如果有多个热键,由wParam来区分
g+|1khS) SaveBmp();
~ \z7$9Q return FALSE;
}"BXqh"\` }
'+LC.l M …… //其它处理及默认处理
tYK
5?d }
ZG+8kt!w eS{lr4-] E8j>Toz 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
ohklLZoZ c,-3+b 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
^cB83%<Z :t+XW`eQR: 二、编程步骤
^3C8GzOsO AAUFX/}8P 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
W;en7v;#I} =S7Xj`/ 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
PRcW}"m]Qg %H Pwu & 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
~'k.'O{ musZCg$ 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;
")LcB'C + pTc2z 5、 添加代码,编译运行程序。
w}nc^6qH U[1Rw6 三、程序代码
Ey7SQb w'E&w)Z] ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
Gv?3T Am8 #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
;5QdT{$H #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
Y@N-q #if _MSC_VER > 1000
sw
A^oU #pragma once
l0N~mes #endif // _MSC_VER > 1000
HE#IJB6BS? #ifndef __AFXWIN_H__
g.$a]pZz #error include 'stdafx.h' before including this file for PCH
706-QE^ #endif
^ur?da9z' #include "resource.h" // main symbols
<WhdQKFf- class CHookApp : public CWinApp
~Ry?}5&: {
FY1
>{Bn public:
t[/WGF&(R CHookApp();
=?hGa;/rb // Overrides
y}Ji( q~ // ClassWizard generated virtual function overrides
1h_TG.YL9> //{{AFX_VIRTUAL(CHookApp)
MHNuA,cz public:
NH+?7rf8 virtual BOOL InitInstance();
c&4EO| virtual int ExitInstance();
.)J7 \z8m //}}AFX_VIRTUAL
u*LMpTnn //{{AFX_MSG(CHookApp)
;>YLL}]j // NOTE - the ClassWizard will add and remove member functions here.
b?S,% // DO NOT EDIT what you see in these blocks of generated code !
x UM,"+h //}}AFX_MSG
ypyqf55gK DECLARE_MESSAGE_MAP()
N 0<([B; };
mN+
w, LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
Uj]Tdg BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
5qZebD2a BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
zpi
Q ;P BOOL InitHotkey();
n$]78\C BOOL UnInit();
fL-lx-~ #endif
S~L;oX?(! oihn`DY{ //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
iF0x>pvJ@ #include "stdafx.h"
PX!$w*q #include "hook.h"
gt]k#(S #include <windowsx.h>
D XFU~J* #ifdef _DEBUG
$aIq>vJO9 #define new DEBUG_NEW
c:? tn #undef THIS_FILE
02+ k,xFb static char THIS_FILE[] = __FILE__;
UYOveQ; #endif
*nZe|)m #define MAX_KEY 100
Wgp}v93 #define CTRLBIT 0x04
?fv5KdD #define ALTBIT 0x02
VS.~gHx #define SHIFTBIT 0x01
I?y!d
G #pragma data_seg("shareddata")
H{ yUKZH* HHOOK hHook =NULL;
Y
1v9sMN, UINT nHookCount =0;
jd>ug=~x static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
f7&53yZF static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
XR2Gw4] static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
p ~LTu<*S static int KeyCount =0;
l 1C'<+2j! static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
4G ?Cu,$ #pragma data_seg()
NJ%>|`FEi7 HINSTANCE hins;
]{sx#|_S void VerifyWindow();
5t('H`,2 BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
MK1V1F` //{{AFX_MSG_MAP(CHookApp)
_-MILkx\ // NOTE - the ClassWizard will add and remove mapping macros here.
YCMXF#1 // DO NOT EDIT what you see in these blocks of generated code!
@q(sig00nr //}}AFX_MSG_MAP
4\?z^^ END_MESSAGE_MAP()
DT2uUf b({K6#?'[ CHookApp::CHookApp()
S1d^mu {
:`jB1rI // TODO: add construction code here,
goa@e // Place all significant initialization in InitInstance
/2s=;tA1 }
Hsdcv~Xr;l
19#s:nt9 CHookApp theApp;
1:Sq?=& LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
nr*nX {
yzH(\ x BOOL bProcessed=FALSE;
8D]&wBR: if(HC_ACTION==nCode)
9-B/n0 {
e^ Aw%t if((lParam&0xc0000000)==0xc0000000){// Key up
FqWW[Bgd switch(wParam)
d+m}Z>iQ1O {
}Mv$Up case VK_MENU:
P]A~:Lj MaskBits&=~ALTBIT;
+Oxw?`I$ break;
5u5-:#sLy case VK_CONTROL:
=\ek;d0Tqb MaskBits&=~CTRLBIT;
r(qwzUI break;
}F
B]LLi case VK_SHIFT:
iNO}</7? MaskBits&=~SHIFTBIT;
v~B
"Il break;
)I{~Pcq default: //judge the key and send message
s*;rt break;
Z=KHsMnB }
;L`NF" for(int index=0;index<MAX_KEY;index++){
GZq~Pl if(hCallWnd[index]==NULL)
7M.TLV!f] continue;
A
)q=.C#e if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
)(/Bw&$ {
Ia@!Nr2 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
UM(`Oh8 bProcessed=TRUE;
G~ONHXL }
GEs5@EH }
k00&+C }
E[=#Rw!* else if((lParam&0xc000ffff)==1){ //Key down
YqQAogyh switch(wParam)
O)FkpZc@9c {
7;8DKY q case VK_MENU:
F!RzF7h1 MaskBits|=ALTBIT;
;t xW\iy%Z break;
j9sLR case VK_CONTROL:
~@H9h<T MaskBits|=CTRLBIT;
Y2!P!u+Q break;
HKXtS>7d case VK_SHIFT:
0Yo(pW,k MaskBits|=SHIFTBIT;
hY(q@_s break;
#qcF2&a% default: //judge the key and send message
EYy|JT]B break;
}i F|NIV }
ZUd*[\F~! for(int index=0;index<MAX_KEY;index++)
-)pVgf {
8ioxb`U if(hCallWnd[index]==NULL)
Hw\hTTK continue;
(>,}C/-UG if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
D:56>%y@ {
M> rertUR SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
Q2LAXTF]y bProcessed=TRUE;
xXQW|#X\ }
{P7 I<^, }
_8{6&AmIw }
C"cBlru8B if(!bProcessed){
QUb#84 for(int index=0;index<MAX_KEY;index++){
3E$h
W if(hCallWnd[index]==NULL)
EmYu]"${1 continue;
;\],R.! if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
4|INy=<"t SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
gk^`-`P }
b8O }XB }
1,Uf-i }
"8R\!i. return CallNextHookEx( hHook, nCode, wParam, lParam );
_08y; _S }
5M=
S7B3= &eIwlynm BOOL InitHotkey()
)J(@e4;Rv {
=vD}O@tN if(hHook!=NULL){
$.Qu55=z< nHookCount++;
~E3"s return TRUE;
a
IgV"3 }
WW3! ,ln_ else
B@K =^77 hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
{SJnPr3R if(hHook!=NULL)
cHw-; nHookCount++;
M1,1J-h return (hHook!=NULL);
s g6e%
5 }
o#frNT} BOOL UnInit()
Wg[ThaZ {
p8X$yv if(nHookCount>1){
,/Yo1@U nHookCount--;
Lv<)Dur0K return TRUE;
_n12Wx{ }
g7`uWAxZa BOOL unhooked = UnhookWindowsHookEx(hHook);
lfe^_`ij(+ if(unhooked==TRUE){
"*oN~&flc nHookCount=0;
'l41];_ hHook=NULL;
;Ebpf J }
&^JYIRn1\ return unhooked;
VCCG_K9' }
yiAusl; lFc4| _c g BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
z\6/?5D#v {
L.$+W} BOOL bAdded=FALSE;
kT,2eel for(int index=0;index<MAX_KEY;index++){
-z?O^:e#x if(hCallWnd[index]==0){
_/RP3" # hCallWnd[index]=hWnd;
q,fk@GI'2 HotKey[index]=cKey;
=G-u "QJ6 HotKeyMask[index]=cMask;
E|BiK bAdded=TRUE;
eSA%:Is. KeyCount++;
#e5*Dr8 break;
#M=d)}[ }
&4V"FHy2 }
^#,cWG}z return bAdded;
r57rH^Hc }
_^Lg}@t ]M.)N.T BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
%q5iy0~P {
5%%A2FrB.S BOOL bRemoved=FALSE;
OJ4-p&1 for(int index=0;index<MAX_KEY;index++){
5c+7c@. if(hCallWnd[index]==hWnd){
t.]c44RY if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
!Z`xwk"! hCallWnd[index]=NULL;
`^1&Qz> HotKey[index]=0;
tX.{+yyU HotKeyMask[index]=0;
3I.0uLjg^ bRemoved=TRUE;
d+Bz
pS@p KeyCount--;
cwKOE?! break;
-nKBSls }
J6*B=PX=( }
Ykt(%2L }
n+;PfQ| return bRemoved;
Bl8&g]dk }
5jBBk*/\ Gj(UA1~1 void VerifyWindow()
n:5*Tg9 {
zV=(e( [ for(int i=0;i<MAX_KEY;i++){
h|
+( if(hCallWnd
!=NULL){ ;3k6_ub
if(!IsWindow(hCallWnd)){ G9uWn%5r
hCallWnd=NULL; KqT~MPl
HotKey=0; n\D3EP<s
HotKeyMask=0; D:Y`{ {
KeyCount--; l5d>
YTK+5
} OJ\rT.{
} TAn.5
wH9t
} w=H4#a?fc
} ?G>#'T[
M[ZuXH}
BOOL CHookApp::InitInstance() mca9 +v
{ jw!QjVuRN%
AFX_MANAGE_STATE(AfxGetStaticModuleState()); @5-+>\Hd^t
hins=AfxGetInstanceHandle(); /,Sd
InitHotkey(); !saKAb}d7H
return CWinApp::InitInstance(); .+cYzS]!
} sw@*N
S.Fip_
int CHookApp::ExitInstance() ]0wmvTR
{ 3tTz$$-#
VerifyWindow(); QU{\ClW/?
UnInit(); Pf]O'G&F
return CWinApp::ExitInstance(); I NE,/a=
} ~IE5j,SC
TAu*lL(F
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file Ev\kq>2O
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) umWZ]8
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ W<uL{k.Kpd
#if _MSC_VER > 1000 6}6ky9
#pragma once ]m(5>h#
#endif // _MSC_VER > 1000 T\h_8
4';]fmf@[i
class CCaptureDlg : public CDialog >MIp r
{ 'D4KaM.d
// Construction <#9zc'ED:
public: /@bLc1"
BOOL bTray; S-:7P.#Q
BOOL bRegistered; 7TQh'j
BOOL RegisterHotkey(); S hM}w/4
UCHAR cKey; [+st?;"GF
UCHAR cMask; s=nE'/q1|
void DeleteIcon(); ptmPO4f
void AddIcon(); Ueyt}44.e2
UINT nCount; Q nqU!6k@
void SaveBmp(); 4l?98
CCaptureDlg(CWnd* pParent = NULL); // standard constructor _u :4y4}
// Dialog Data 3&@MZF&
//{{AFX_DATA(CCaptureDlg) AOaf ,ZF
8
enum { IDD = IDD_CAPTURE_DIALOG }; N>Pufr
CComboBox m_Key; 6]}Xi:I
BOOL m_bControl; g/q$;cB
BOOL m_bAlt; EN%Xs578
BOOL m_bShift; 32IN;X|
CString m_Path; u0J+Nj9
CString m_Number; o /fq
//}}AFX_DATA DOWUnJ;5
// ClassWizard generated virtual function overrides nWK"i\2#G
//{{AFX_VIRTUAL(CCaptureDlg) ~QsQ7SAs
public: ::vw1Es
virtual BOOL PreTranslateMessage(MSG* pMsg); +G_6Ek4
protected: B!le=V,@,
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support =P+S]<O
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); vAJfMUlP
//}}AFX_VIRTUAL #1zWzt|DW
// Implementation _+8$=k2nM
protected: }#
-N7=h
HICON m_hIcon; J 6S
// Generated message map functions I#Tl
//{{AFX_MSG(CCaptureDlg) Hf
%;FaJ=
virtual BOOL OnInitDialog(); ^aZ Wu|p
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); b@f.Kd7I
afx_msg void OnPaint(); {-S0m=
afx_msg HCURSOR OnQueryDragIcon(); Z<r&- !z
virtual void OnCancel(); |"P5%k#6^>
afx_msg void OnAbout(); P
N_QK Z
afx_msg void OnBrowse(); Y#6@0Nn[G
afx_msg void OnChange(); o\Hg2^YY>
//}}AFX_MSG T"Q4vk,3*J
DECLARE_MESSAGE_MAP() l{Hi5x'H
}; .@APxeU
#endif "MXd!
)}c$n
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file Vb 4Qt#o
#include "stdafx.h" n37( sKG
#include "Capture.h" kQIWDN
#include "CaptureDlg.h" [-$&pB>w8'
#include <windowsx.h> $Y,]D*|"K
#pragma comment(lib,"hook.lib") $vy.BYFm
#ifdef _DEBUG ^B& Z
#define new DEBUG_NEW U)p2PTfB
#undef THIS_FILE B>Nxc@=D
static char THIS_FILE[] = __FILE__; `s:| 4;.
#endif .(S,dG0P
#define IDM_SHELL WM_USER+1 /p>"|z
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); 6XQ)Q)
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); 66'TdF]"
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; h)wR[N]n
class CAboutDlg : public CDialog ~:)$~g7>b
{ MO#%w
public: o-O/M S
CAboutDlg(); XtfL{Fy|T
// Dialog Data u'K<-U8H
//{{AFX_DATA(CAboutDlg) >/bl
r}5
H
enum { IDD = IDD_ABOUTBOX }; wKY6[ vvF
//}}AFX_DATA |x<
// ClassWizard generated virtual function overrides \0 WMb
//{{AFX_VIRTUAL(CAboutDlg) m;
ABHq#
protected: S|]~,l2]}
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support _i8$!b2Mr
//}}AFX_VIRTUAL ,(`@ZFp$
// Implementation RL&3 P@r
protected: %q*U[vv
//{{AFX_MSG(CAboutDlg) nLtP^
1~9H
//}}AFX_MSG cR5<.$aY
DECLARE_MESSAGE_MAP() D}"GrY5
}; >; W)tc,
Y,(eu*Za
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) Tz*5;y%4
{
FxZ\)Y
//{{AFX_DATA_INIT(CAboutDlg) uEi!P2zN
//}}AFX_DATA_INIT Uero!+_
} ao-C9|2>NU
mG@Q}Y(
void CAboutDlg::DoDataExchange(CDataExchange* pDX) bY>o%LL-
{ 4UL-j
CDialog::DoDataExchange(pDX); I$mOy{/#
//{{AFX_DATA_MAP(CAboutDlg) Ew:JpMR
//}}AFX_DATA_MAP AN~1E@"
} `z=MI66Nl
<![T~<.
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) +u=xBhZ
//{{AFX_MSG_MAP(CAboutDlg) ;C"J5RA
// No message handlers p-7dJ
//}}AFX_MSG_MAP v}_$9&|S
END_MESSAGE_MAP() /BIPLDN6
If&p$pAH?
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) C3_*o>8
: CDialog(CCaptureDlg::IDD, pParent) M}5 C;E*
{ gN]`$==c[
//{{AFX_DATA_INIT(CCaptureDlg) MW$9,[
m_bControl = FALSE; )@Zel.XD
m_bAlt = FALSE; "7<4NV@yQ
m_bShift = FALSE; X&lkA
(
m_Path = _T("c:\\"); ,DE%p
+q
m_Number = _T("0 picture captured."); -%N (X8
nCount=0; tRv#%>fj
bRegistered=FALSE; XW#4C*5?d
bTray=FALSE; nK|";
//}}AFX_DATA_INIT isd[l-wAmf
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 R#ZDB]2
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); Yj"UD:p
} =[k9{cVW
#YNb&K
n
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) -Qgfo|po
{ hW},%
CDialog::DoDataExchange(pDX); 7 Ow7|
//{{AFX_DATA_MAP(CCaptureDlg) PLY7qMw
DDX_Control(pDX, IDC_KEY, m_Key); S77Gc:[;8
DDX_Check(pDX, IDC_CONTROL, m_bControl); E+2y-B)E
DDX_Check(pDX, IDC_ALT, m_bAlt); Z~nl{P#
DDX_Check(pDX, IDC_SHIFT, m_bShift); ?eO|s5r
DDX_Text(pDX, IDC_PATH, m_Path); 8r|LFuI
DDX_Text(pDX, IDC_NUMBER, m_Number); <^~F~]wnH
//}}AFX_DATA_MAP 5Ci}w|c/>
} zV&3l9?U
^$L/Mv+
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) dG rA18
//{{AFX_MSG_MAP(CCaptureDlg) cnc$^[c
ON_WM_SYSCOMMAND() W#wM PsB
ON_WM_PAINT() "Dk:r/
ON_WM_QUERYDRAGICON() _YJw F1e+M
ON_BN_CLICKED(ID_ABOUT, OnAbout) NWpRzh8$u
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) j>T''Tf
ON_BN_CLICKED(ID_CHANGE, OnChange) !^7:Rr_
//}}AFX_MSG_MAP [V f|4xcD
END_MESSAGE_MAP() m88~+o<G%
1)R)+`y
BOOL CCaptureDlg::OnInitDialog() 'I~dJEW7
{ %q Q(@TG
CDialog::OnInitDialog(); 4mAtYm
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); %G@aZWk
Sa
ASSERT(IDM_ABOUTBOX < 0xF000); _SaK]7}m!
CMenu* pSysMenu = GetSystemMenu(FALSE); a9I8WQ
if (pSysMenu != NULL) meL'toaJdQ
{ "+WR[-n>\
CString strAboutMenu; /7#&qx8
strAboutMenu.LoadString(IDS_ABOUTBOX); ?4Lo"igAA
if (!strAboutMenu.IsEmpty()) 1=X=jPwO C
{ L8G4K)
pSysMenu->AppendMenu(MF_SEPARATOR); 4{?x(~
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); tWiV0PTI
} bDo'hDmW
} _"bx#B*
SetIcon(m_hIcon, TRUE); // Set big icon d5\1-d_uz
SetIcon(m_hIcon, FALSE); // Set small icon ~V&ReW/
m_Key.SetCurSel(0); 'YG`/@n;
RegisterHotkey(); ^\?9W
CMenu* pMenu=GetSystemMenu(FALSE); -^5R51
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); >guQY I@4,
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); ah92<'ix
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); H6O\U2+
return TRUE; // return TRUE unless you set the focus to a control zaZ}:N/w(z
} @}gdOaw
fUXp)0O
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) kUt9'|9!
{ m&q;.|W
if ((nID & 0xFFF0) == IDM_ABOUTBOX) hF~B&^dd.
{ ]| yH8 m
CAboutDlg dlgAbout; twtDyo(\
dlgAbout.DoModal(); $ZU(bEUOG
} H1[aNwLr
else zi
,Rk.
{ agYKaM1N
CDialog::OnSysCommand(nID, lParam); K9 q~Vf
} :tqjm:
} l 3K8{HY
nf4P2<L!
void CCaptureDlg::OnPaint() IMZKlU3
{ 1I`D$Xq~:
if (IsIconic()) 07|NPS
{ B<LavX>F
CPaintDC dc(this); // device context for painting %&XX*&
q
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); kTz
// Center icon in client rectangle iV5I
int cxIcon = GetSystemMetrics(SM_CXICON); /v{[Z&z
int cyIcon = GetSystemMetrics(SM_CYICON); *eP4dGe&
CRect rect; o zYI/b^
GetClientRect(&rect); Pb,^UFa=
int x = (rect.Width() - cxIcon + 1) / 2; o,yvi
int y = (rect.Height() - cyIcon + 1) / 2; =oME~oB~
// Draw the icon S;'eoqN8
dc.DrawIcon(x, y, m_hIcon); c)8wO=!
} Ic
K=E]p
else LXLDu2/@
{ u-_$?'l;~
CDialog::OnPaint(); 7gwZ9Fob
} 1l_}O1
} -G;1U
,#T3OA!c**
HCURSOR CCaptureDlg::OnQueryDragIcon() zq.&Mw?
{ ]3xa{h~4
return (HCURSOR) m_hIcon; =]a@)6y
} WDdi}i>2
E/ZJ\@gzD
void CCaptureDlg::OnCancel() ]eW|}V7A:
{ /wE_eK.
if(bTray) }|Tg_+
DeleteIcon(); LrMFzd}_O
CDialog::OnCancel(); -y?Z}5-rs
} 0*?XQV@
yV/ J(
void CCaptureDlg::OnAbout() SN(=e#ljE
{ noA\5&hqW
CAboutDlg dlg; ^-u HdafP
dlg.DoModal(); dV{Hn {(
} RRqMwy>%
wW8
6rB
void CCaptureDlg::OnBrowse() rfRo*u2"
{ N[bN"'U/1
CString str; eC?/l*gF3
BROWSEINFO bi; &ZN'Ey?
char name[MAX_PATH]; 0:'jU
ZeroMemory(&bi,sizeof(BROWSEINFO)); >iH).:j
bi.hwndOwner=GetSafeHwnd(); zm+4Rl(
bi.pszDisplayName=name; ]B3FTqR{i
bi.lpszTitle="Select folder"; vvAk<[
bi.ulFlags=BIF_RETURNONLYFSDIRS; x{>Y$t]
LPITEMIDLIST idl=SHBrowseForFolder(&bi); iBQBHF
if(idl==NULL) W \}}gIEM+
return; 7;'.5,-3c
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); S7ehk*`
str.ReleaseBuffer(); S}^s5ztm
m_Path=str; 0 jP00
if(str.GetAt(str.GetLength()-1)!='\\') xY0QGQca
m_Path+="\\"; }Tr83B|
UpdateData(FALSE); x7Rq|NQ
} t;dQ~e20
s}#[*WOc
void CCaptureDlg::SaveBmp() R+K&<Rz
{ x}<G!*3
CDC dc; o:8S$F`O@
dc.CreateDC("DISPLAY",NULL,NULL,NULL); v^W?o}W
CBitmap bm; E#$_uZ4
int Width=GetSystemMetrics(SM_CXSCREEN); @P"`=BU&
int Height=GetSystemMetrics(SM_CYSCREEN); n,jE#Z.D
bm.CreateCompatibleBitmap(&dc,Width,Height); ./nYXREO|
CDC tdc; udD*E~1q
tdc.CreateCompatibleDC(&dc); 7 G[ GHc>
CBitmap*pOld=tdc.SelectObject(&bm); # )mkD4
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); [gkRXP[DGs
tdc.SelectObject(pOld); A
Ok7G?Y
BITMAP btm; h0GdFWN
bm.GetBitmap(&btm); /P!X4~sTM
DWORD size=btm.bmWidthBytes*btm.bmHeight; 4 uy @ {
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); 9Ir~X|}\iL
BITMAPINFOHEADER bih; y-<PsP-I
bih.biBitCount=btm.bmBitsPixel; B:- KZuO
bih.biClrImportant=0; <]Pix)
bih.biClrUsed=0; ?PE1aB+{:
bih.biCompression=0; IEoR7:
bih.biHeight=btm.bmHeight; ;}eEG{`Y
bih.biPlanes=1; >\7RIy3
bih.biSize=sizeof(BITMAPINFOHEADER); &lh_-@Xz
bih.biSizeImage=size; |:=b9kv
bih.biWidth=btm.bmWidth; 2x`xyR_Q.R
bih.biXPelsPerMeter=0; -{8Q= N
bih.biYPelsPerMeter=0; pmW6~%}*
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); _X%6 +0M
static int filecount=0; H"FflmUO
CString name; I"cQ5gF?A
name.Format("pict%04d.bmp",filecount++); 2gL[\/s
name=m_Path+name; /ik)4]>
BITMAPFILEHEADER bfh; jO&f*rxN
bfh.bfReserved1=bfh.bfReserved2=0; E8iadf49
bfh.bfType=((WORD)('M'<< 8)|'B'); Gp ^ owr
bfh.bfSize=54+size; ;h-G3>Il
bfh.bfOffBits=54; DtF![0w/
CFile bf; Og$eQS
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ }`9fZK{. @
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); e(n2+S#N
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); 1Fvv/Tj
bf.WriteHuge(lpData,size); 0$"Q&5Y
bf.Close(); Nx4DC
nCount++; p*AP 'cR
} 7o965h
GlobalFreePtr(lpData); @8M'<tr<z
if(nCount==1) |P. =
m_Number.Format("%d picture captured.",nCount); n$hqNsM
else -Ty<9(~S
m_Number.Format("%d pictures captured.",nCount); F`;TU"pDf
UpdateData(FALSE); g~Nij~/
} 1FD7~S|
^C:{z)"h
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) 5gc:Y`7t
{ ]O[+c*|w
if(pMsg -> message == WM_KEYDOWN) Q_dXRBv=n
{ 9!O+Ryy?\
if(pMsg -> wParam == VK_ESCAPE)
KF:]4`$
return TRUE; lk*0c{_L
if(pMsg -> wParam == VK_RETURN) {m+S{dWp
return TRUE; "]SJbuzh
} gQI(=in
return CDialog::PreTranslateMessage(pMsg); C NzSBm
} Y uw
E 0
2pxWv
)0
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) rY[3_ NG%
{ hpqHllL
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ ,NaV
["9$
SaveBmp(); n~"g'Y
return FALSE; EbBv}9g
} xS
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if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ Imh2~rw;
CMenu pop; }"&n[/8~
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); f*|8n$%
CMenu*pMenu=pop.GetSubMenu(0); ubzb
pMenu->SetDefaultItem(ID_EXITICON); fw:7Q7
qo
CPoint pt; %67G]?EXB
GetCursorPos(&pt); x%IXwP0
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); ,`%k'ecN
if(id==ID_EXITICON) q19k<BqR
DeleteIcon(); @H3 s2|
else if(id==ID_EXIT) }{#;;5KrB
OnCancel(); ONr?.MJ6j
return FALSE; :>tF_6
} S|{Yvyp
LRESULT res= CDialog::WindowProc(message, wParam, lParam); wL8bs-
U
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) (1kn):
AddIcon(); 'uP'P#
return res; (opROsFh
} .KiPNTh'
B%%.@[o,
void CCaptureDlg::AddIcon() <?>I\
{ ny!lja5[
NOTIFYICONDATA data; SQdzEF
data.cbSize=sizeof(NOTIFYICONDATA); a<57(Sf
CString tip; m{:" 1]
tip.LoadString(IDS_ICONTIP); (!3Yc:~RE
data.hIcon=GetIcon(0); eHVdZ'%x
data.hWnd=GetSafeHwnd(); r!=]Q}`F
strcpy(data.szTip,tip); ;1{iF2jZ:
data.uCallbackMessage=IDM_SHELL; %Lh-aP{[e
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; wE,=%?"
data.uID=98; I<D&,LFH*w
Shell_NotifyIcon(NIM_ADD,&data); i$`|Y*
ShowWindow(SW_HIDE); P;)2*:--)
bTray=TRUE; >~`Y
} _SMT.lG
}"%!(rx
void CCaptureDlg::DeleteIcon() di]$dl|Wi
{ rt5oRf:wY
NOTIFYICONDATA data; Kf:2%_DB
data.cbSize=sizeof(NOTIFYICONDATA); RJtixuvh@
data.hWnd=GetSafeHwnd(); 8F O1`%8Oe
data.uID=98; $Q`yNEc
Shell_NotifyIcon(NIM_DELETE,&data); -,K*~z.l
ShowWindow(SW_SHOW); ,GdxUld
SetForegroundWindow(); E<D+)A
ShowWindow(SW_SHOWNORMAL); X;s3y{ku
bTray=FALSE; t/v@vJ`vSH
} ~=`f]IL
=,&u_>Dp
void CCaptureDlg::OnChange() G]L0eV
{ ) >>u|#@z
RegisterHotkey(); 92P,:2`a
} ,X9hl J
;eS;AHZ
BOOL CCaptureDlg::RegisterHotkey() >%iu!H"
{ %-@'CNP
UpdateData(); rtB|N-
UCHAR mask=0; +l2e[P+qA
UCHAR key=0; /p"U
if(m_bControl) g6rv`I$l
mask|=4; RE ![O
if(m_bAlt) Du)B9s
mask|=2; T$gkq>!j<E
if(m_bShift) KW&nDu