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:
j*~T1i
9 \^|6k, 一、实现方法
~-wPP{! j xYc2 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:
!w&kyW?e qI^
/"k*5 #pragma data_seg("shareddata")
4CGPOc HHOOK hHook =NULL; //钩子句柄
NcY608C UINT nHookCount =0; //挂接的程序数目
$9?cP`hmi static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
@&[T _l static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
1S@vGq} static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
{Zp\^/ static int KeyCount =0;
hYawU@R static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
Ef<b~E@ #pragma data_seg()
\Qm CeB IIy~[4dW 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。
~'R(2[L!; $s<Ne{? 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:
McPNB`.H y8fsveX BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
uc|45Zxt cKey,UCHAR cMask)
xe/( {
{rcnM7 S1L BOOL bAdded=FALSE;
=y=cW1TG for(int index=0;index<MAX_KEY;index++){
g2unV[()_ if(hCallWnd[index]==0){
=J1rlnaaEL hCallWnd[index]=hWnd;
#-h\. #s HotKey[index]=cKey;
c'*a{CV4P HotKeyMask[index]=cMask;
T?4G'84nN bAdded=TRUE;
EI\9_}@, KeyCount++;
Qt|c1@J break;
EUIIr4] }
.!JVr"8 }
*OQG4aWy return bAdded;
OgX6'E\E }
ETB6f //删除热键
$0arz{Oh BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
+f[ED4E>'( {
I$8" N]/C BOOL bRemoved=FALSE;
37;$-cFE for(int index=0;index<MAX_KEY;index++){
jM\*A#Jo5 if(hCallWnd[index]==hWnd){
vVL@K,q if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
`9 {mr< hCallWnd[index]=NULL;
[e1S^pI HotKey[index]=0;
u[{tb HotKeyMask[index]=0;
Ld B($4, bRemoved=TRUE;
3"rzb]=R KeyCount--;
1h.)#g?{ break;
}. z&P' }
7.j[a*^ }
.; )l }
A'nq}t 3 return bRemoved;
%$TGzK 1 }
csfgJ^ n ^ "\R\COQ ^Idle*+ DLL中的钩子函数如下:
C)cwAU|h# /Wf^hA
LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
JsotOic% {
/EG~sRvl} BOOL bProcessed=FALSE;
3QpYmX<E if(HC_ACTION==nCode)
e)?Fi {
DLCkM*' if((lParam&0xc0000000)==0xc0000000){// 有键松开
b"TjGE switch(wParam)
{aM<{_v {
Uo-`>7 case VK_MENU:
pC_O:f>vJ MaskBits&=~ALTBIT;
t-LG }nv break;
WKSPBT; case VK_CONTROL:
not YeY7wR MaskBits&=~CTRLBIT;
JH8zF{? break;
G}9=) case VK_SHIFT:
GLGz2 ,# MaskBits&=~SHIFTBIT;
]%!u7z|\6 break;
C{d7J'Avk default: //judge the key and send message
%8~3M75$ break;
gR@C0 }
vp.ZK[/` for(int index=0;index<MAX_KEY;index++){
!\g+8> if(hCallWnd[index]==NULL)
/6_|]ijc continue;
SvR7eC if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
uB7 V?A {
bb
d. SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
)*:`':_a bProcessed=TRUE;
|c`w'W?C6 }
> ,DbNmi }
(L`j0kPN }
WMj}kq)SY) else if((lParam&0xc000ffff)==1){ //有键按下
CSCN['x switch(wParam)
n>'Kp T9| {
<G*nDFWf case VK_MENU:
ooV*I|wcI
MaskBits|=ALTBIT;
X_v[MW break;
`g,8- case VK_CONTROL:
G-T0f MaskBits|=CTRLBIT;
~0b O} break;
Zo{$ case VK_SHIFT:
$t/x;<.H MaskBits|=SHIFTBIT;
#h@J=Ki break;
kEd@oC default: //judge the key and send message
=H|6 GJ break;
nF5qw>t# }
c_"
~n| for(int index=0;index<MAX_KEY;index++){
kD}Y|*]5-5 if(hCallWnd[index]==NULL)
P<K){V continue;
HfLLlH<L`& if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
^#0U ?9 {
7L^%x3-|& SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
Xo*DvD bProcessed=TRUE;
TYA~#3G) }
03j]d&P%d
}
~l2aNVv; }
LF0sH)e] if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
vO;I(^Q for(int index=0;index<MAX_KEY;index++){
]#.]/f
>- if(hCallWnd[index]==NULL)
R
CkaJ3 continue;
{ m|pl if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
7G)H.L)$m" SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
*~/OOH$" //lParam的意义可看MSDN中WM_KEYDOWN部分
8KH\`5< }
$\k0Nup} }
=rR~ ` }
WF\)fc#;_o return CallNextHookEx( hHook, nCode, wParam, lParam );
ZR\VCVH\^ }
21(p|`X sFBneBub 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:
1[]&(Pa vp(;W,ba:| BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
#b7$TV BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
wR{'y)$ wW"z 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:
V
_c@ b% W14Vm(`N LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
(
9]_ HW[ {
&5L<i3BX if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
cv/_r#vN {
^V%rag
//lParam表示是按下还是松开,如果有多个热键,由wParam来区分
Wpc|`e< SaveBmp();
_{|D return FALSE;
xW[ -n }
fQP {|+4 …… //其它处理及默认处理
q{ /3V }
[p=*u,- I7&_Xr e${>#> 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。
#Mg]GeDJ{ &gI ~LP 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。
Ssk}e=] V
i&*&"q 二、编程步骤
Qeu\&%C!< ?h!i0Rsm 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";
!pJeA)W; *9p |HX= 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
VAC iVKk +1~Z#^{& 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\)Td+~jc n$[f94d= 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;
DD44"w_9 s[gKc ' 5、 添加代码,编译运行程序。
XW?b\!@ $ (Y^X0yA/ 三、程序代码
z5bo_Eq "@9?QI} ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
<9sO #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
F,5r9^,_ #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
[TCP-bU #if _MSC_VER > 1000
xm6 EKp: #pragma once
-8N|xQ378 #endif // _MSC_VER > 1000
*GUAO){' #ifndef __AFXWIN_H__
w{dIFvQ"$ #error include 'stdafx.h' before including this file for PCH
x3rlJs`$; #endif
j|tC@0A #include "resource.h" // main symbols
6'W [{gzl class CHookApp : public CWinApp
{s3z"OV {
<[GYLN[0Q public:
a=TG[* s CHookApp();
{m`A!qcD| // Overrides
DKVT(#@T // ClassWizard generated virtual function overrides
Ys8SDlMo //{{AFX_VIRTUAL(CHookApp)
*z'yk* public:
}CxvT`/ virtual BOOL InitInstance();
mQ}ny (K' virtual int ExitInstance();
tb?YLxMV //}}AFX_VIRTUAL
tDDy]==E //{{AFX_MSG(CHookApp)
G4
G5PXi // NOTE - the ClassWizard will add and remove member functions here.
U=8@@yE // DO NOT EDIT what you see in these blocks of generated code !
i*eAdIi //}}AFX_MSG
TPE:e)GO DECLARE_MESSAGE_MAP()
)fdE6 };
VGqa)ri" LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
irk*~k ? BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
p*5\+WO>!( BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
I\|N BOOL InitHotkey();
_j>;ipTb+ BOOL UnInit();
+}Av-47`h #endif
a iCn"j 1qi@uYDug //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
~m*,mz #include "stdafx.h"
d1joVUYE #include "hook.h"
tvd0R$5} #include <windowsx.h>
vEQ<A<[Z #ifdef _DEBUG
gw _$ #define new DEBUG_NEW
vB!|\eJ #undef THIS_FILE
_ q(Q static char THIS_FILE[] = __FILE__;
)IT6vU"-yd #endif
&:=$wc #define MAX_KEY 100
,YhwpkL #define CTRLBIT 0x04
, %YBG1E[y #define ALTBIT 0x02
#%@MGrsK #define SHIFTBIT 0x01
u-"c0@ #pragma data_seg("shareddata")
dGwszziuK HHOOK hHook =NULL;
]S 7^ITn UINT nHookCount =0;
0J~Qq]g static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
FEz>[#eOX static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
UofTll) static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
^zEE6i static int KeyCount =0;
7~M<cD static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
eo^/c+FG #pragma data_seg()
$j)hNWI HINSTANCE hins;
2AVc?
9@ void VerifyWindow();
XN,,cU BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
&Np9kIMCB //{{AFX_MSG_MAP(CHookApp)
@/%{15s. // NOTE - the ClassWizard will add and remove mapping macros here.
<5@PWrU?[[ // DO NOT EDIT what you see in these blocks of generated code!
nW?R"@Zm //}}AFX_MSG_MAP
69#8Z+dw7 END_MESSAGE_MAP()
HEA eo! 3z;_KmM CHookApp::CHookApp()
7+w'Y<mJ {
)
uP\>vRy // TODO: add construction code here,
kcB+ _ // Place all significant initialization in InitInstance
&@ 3m-Z }
z&4~x!-_ (
#&|Dp^' CHookApp theApp;
6aOp[-Le LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
z1,tJH0 {
(bn
Zy0 BOOL bProcessed=FALSE;
+ E"[ if(HC_ACTION==nCode)
\.e4.[%[2- {
#t!}K_ if((lParam&0xc0000000)==0xc0000000){// Key up
4 c'4*`I switch(wParam)
*@V*~^V"J[ {
VSOz.g> case VK_MENU:
vuz4qCQ MaskBits&=~ALTBIT;
1@XgTL4 break;
z 2/!m[U case VK_CONTROL:
c#xP91.m MaskBits&=~CTRLBIT;
D&hqV)d4R break;
Y|0ow_oH case VK_SHIFT:
VanB>|p6 MaskBits&=~SHIFTBIT;
}g f}eH break;
`Iy4=nVb default: //judge the key and send message
|Y_
- break;
`0#H]=$2h }
:46h+?
for(int index=0;index<MAX_KEY;index++){
0_eQlatb if(hCallWnd[index]==NULL)
!F!3Q4 continue;
&S74mV if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
AH{^spD{7, {
f3WSa&eF SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
4}KU>9YRA bProcessed=TRUE;
n"aCt%v }
wX1ig }
fMK#x\.4 }
l54|Q else if((lParam&0xc000ffff)==1){ //Key down
FquFRx switch(wParam)
Tvf~P w {
L*?!Z^k case VK_MENU:
EY>8O+ MaskBits|=ALTBIT;
`{FwTZ=6{ break;
INMP"1 case VK_CONTROL:
+lO'wa7|3 MaskBits|=CTRLBIT;
igDyp0t break;
A~-#@Z case VK_SHIFT:
"EftN5?/ MaskBits|=SHIFTBIT;
M:ai<TZ] break;
9EF~l9`'U default: //judge the key and send message
Ri?\m!o break;
VTe.M[: }
_LfHs1g4 for(int index=0;index<MAX_KEY;index++)
2f:Mm'XdB {
JE%A|R<Jl if(hCallWnd[index]==NULL)
|LYKc.xo continue;
E*v]:kok if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
^>r^3C)_- {
W$\X ~Q'0 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
xDrV5bg bProcessed=TRUE;
&^ I+s^\= }
q/6UK = }
]O!s'lC }
1
ycc5=. if(!bProcessed){
.L;",E for(int index=0;index<MAX_KEY;index++){
~oi_r8K if(hCallWnd[index]==NULL)
rpU/s@%L continue;
{},;-%xE if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
-gKpL\ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
2Ug.:![ }
0U&dq# }
By)3*<5a_ }
<lld*IH return CallNextHookEx( hHook, nCode, wParam, lParam );
Kd{#r/HZ }
{fG|_+tl3o <%,'$^'DS BOOL InitHotkey()
`Wf5 {
)W9_qmYd" if(hHook!=NULL){
1~qm+nET\ nHookCount++;
(UW6F4:$ return TRUE;
me'(lQ6^ }
;nf&c;D else
]%XK)[:5_= hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
a@SUi~+3 if(hHook!=NULL)
:J%'=_I&H nHookCount++;
<$C<Ba?;? return (hHook!=NULL);
!"(u_dFw }
k|ip?O BOOL UnInit()
}vsO^4Sjc {
.wri5 if(nHookCount>1){
T:#S86m nHookCount--;
z_)`g`($ return TRUE;
"w^Nu6 }
tJ1-DoU BOOL unhooked = UnhookWindowsHookEx(hHook);
foyB{6q8 if(unhooked==TRUE){
Mryn>b`cB nHookCount=0;
AgI > hHook=NULL;
x)\V lR }
afy/K'~ return unhooked;
d
qpgf@ }
k1wr/G'H[ zkG>u,B} BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
_jDS" {
o#dcD?^ BOOL bAdded=FALSE;
NE[y|/ for(int index=0;index<MAX_KEY;index++){
c'~[!,[b< if(hCallWnd[index]==0){
-Qg,99M hCallWnd[index]=hWnd;
EJ8I[( HotKey[index]=cKey;
mLULd} g/o HotKeyMask[index]=cMask;
l<n5gfJ bAdded=TRUE;
OT%V{hD KeyCount++;
:r^klJ(m break;
pzAoq)gg: }
9[,s4sxH }
@bY?$fj_u return bAdded;
zIP[R):3&U }
Cca6L9% C/CN
' BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
D!X>O} {
kNRyOUy BOOL bRemoved=FALSE;
"!xvpsy for(int index=0;index<MAX_KEY;index++){
('T4Db if(hCallWnd[index]==hWnd){
2dXU0095 if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
]Mn&76fu hCallWnd[index]=NULL;
~l(G6/R HotKey[index]=0;
-E6J f$ HotKeyMask[index]=0;
1a5?)D bRemoved=TRUE;
lr`?yn1D( KeyCount--;
`@4 2jG}* break;
P\,F1N_?r }
A
*a{ }
[&1iF1)4 }
g4zT(,ZY return bRemoved;
^Yf3"D?& }
xR0~S
3caI Dm>T"4B`/ void VerifyWindow()
Pbc`LN/s| {
$|>6z_3% for(int i=0;i<MAX_KEY;i++){
qRgK_/[] if(hCallWnd
!=NULL){ 'Y hA
if(!IsWindow(hCallWnd)){ 'wCS6_K
hCallWnd=NULL; dD[v=Z_
HotKey=0; bs:C1j\&
HotKeyMask=0; )3k)2X F
KeyCount--; p#ZMABlE,P
} b%=1"&JI:
} TjKzBAX
} F(T=WR].o
} )fxo)GS
1i5 vW- '4
BOOL CHookApp::InitInstance() &Tf=~6
{ tfi2y]{A
AFX_MANAGE_STATE(AfxGetStaticModuleState()); B(S5+Y
hins=AfxGetInstanceHandle(); 6&i[g
InitHotkey(); K~7'@\2
?
return CWinApp::InitInstance(); Q.j-C}a
} 3m-edpH
1h#w"4
int CHookApp::ExitInstance() PFImqojHd
{ h-z%C6
VerifyWindow(); ZrmnQ
UnInit(); {%]NpFg#b
return CWinApp::ExitInstance(); {.s ]\C
} $-C6pZN(X
u+%)JhIp
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file B ]|5?QP-
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) ;y:#S^|?-z
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ <ol$-1l#9
#if _MSC_VER > 1000 /.pa
??u
#pragma once ^ %~Et>C
#endif // _MSC_VER > 1000 3&.TU5]`-
<wIp$F.
class CCaptureDlg : public CDialog 6LSPPMM
{ \_iH4<#>
// Construction 7VEt4
public: 5O;/ lX!u
BOOL bTray; [i,5>YIk
BOOL bRegistered; )a4E&D
BOOL RegisterHotkey(); 0hHIz4(
UCHAR cKey; oN1!>S9m
UCHAR cMask; |_Naun=+~
void DeleteIcon(); 9b{g+lMZo
void AddIcon(); n r'YWW
UINT nCount; |YG)NO
void SaveBmp(); "wc`fg"3
CCaptureDlg(CWnd* pParent = NULL); // standard constructor [15hci+-
// Dialog Data b&hF')_UOz
//{{AFX_DATA(CCaptureDlg) UiGUaB mF*
enum { IDD = IDD_CAPTURE_DIALOG }; "k>{b:R|
CComboBox m_Key; b?+Yo>yF8
BOOL m_bControl; ]1/W8z%
BOOL m_bAlt; ?RrC~7~
BOOL m_bShift; |R_xY=z?
CString m_Path; Li?{e+ g
CString m_Number; @Z3[c[D)9
//}}AFX_DATA Q%gY.n{=
// ClassWizard generated virtual function overrides @B>%B EC
//{{AFX_VIRTUAL(CCaptureDlg) : L6-{9$
public: pAPQi|CN
virtual BOOL PreTranslateMessage(MSG* pMsg); ZI#SYEF6
protected: 4fU5RB7%
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support sT;=7L<TA
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); D{&+7C:8.
//}}AFX_VIRTUAL L!G9O]WB
// Implementation ?z4uze1
protected: -r6(=A
HICON m_hIcon; (HTk;vbZm
// Generated message map functions %k1q4qOG]^
//{{AFX_MSG(CCaptureDlg) iTKG,$G
virtual BOOL OnInitDialog(); o'= [<
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); 2vW,.]95M
afx_msg void OnPaint(); e+]YCp[(
afx_msg HCURSOR OnQueryDragIcon(); } (GQDJp
virtual void OnCancel(); B?/12+sR
afx_msg void OnAbout(); D6pEQdX`
afx_msg void OnBrowse(); +v `^_
afx_msg void OnChange(); Z3u""oM/
//}}AFX_MSG ^{6UAT~!R
DECLARE_MESSAGE_MAP() l*m]2"n]
}; ~gzpX,{n
#endif hj#+8=
H)?" 8 s
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file RY'\mt"W2
#include "stdafx.h" ^q4:zZZ
#include "Capture.h" j*3sjOoC
#include "CaptureDlg.h" RmCn&-i
#include <windowsx.h> 5. +$v4
#pragma comment(lib,"hook.lib") aaqjE
#ifdef _DEBUG *$WiJ3'(m
#define new DEBUG_NEW G`3vH,
#undef THIS_FILE #h5Hi9LKf
static char THIS_FILE[] = __FILE__; ]i_):@
#endif <R]Wy}2-
#define IDM_SHELL WM_USER+1 {?h6*>-^Z
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); se*pkgWbz
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); JOE{&^j
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; 'amex
class CAboutDlg : public CDialog bj*v'
{ hc4`'r;
public: K\%"RgF@&
CAboutDlg(); XTn{1[.O
// Dialog Data ogh2kht
//{{AFX_DATA(CAboutDlg) Tl0+Bq
enum { IDD = IDD_ABOUTBOX }; 0,i+
//}}AFX_DATA -7A!2mRiz
// ClassWizard generated virtual function overrides A`r$fCt1Vi
//{{AFX_VIRTUAL(CAboutDlg) iM-hWhU
protected: [wpt[zG
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support (*^E7
[w
//}}AFX_VIRTUAL c9_4ohB
// Implementation \)6?u_(u
protected: -%QEzu&
//{{AFX_MSG(CAboutDlg) Wf&G9Be?8
//}}AFX_MSG Y;F,GxR}
DECLARE_MESSAGE_MAP() h19.b:JT
}; CBgFB-!qpe
khO<Z^wi[
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) daokiU+l2
{ ? _h#>
//{{AFX_DATA_INIT(CAboutDlg) ":#A>L? l
//}}AFX_DATA_INIT \Jj'60L^
} y O9pEO|W
m`4j|5
void CAboutDlg::DoDataExchange(CDataExchange* pDX) ,r)d#8
{ I^C
]6D{
CDialog::DoDataExchange(pDX); [4(A458H
//{{AFX_DATA_MAP(CAboutDlg) _ER
cmP
//}}AFX_DATA_MAP I$P7%}
} t)kr/Z*p\
JeSkNs|vB
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 5;KT-(q~
//{{AFX_MSG_MAP(CAboutDlg) ?[|4QzR
// No message handlers MrygEC 5
//}}AFX_MSG_MAP "9Fv!*<-W
END_MESSAGE_MAP() @0x.n\M_
E4fvYV_ra
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) W9V=hQ2
: CDialog(CCaptureDlg::IDD, pParent) ,?skJ
{ *~aI>7H
//{{AFX_DATA_INIT(CCaptureDlg) CI]U)@\U
m_bControl = FALSE; hE3jb.s(>
m_bAlt = FALSE; qcoZ2VJ hh
m_bShift = FALSE; Sv]"Y/N
m_Path = _T("c:\\"); Z(clw
m_Number = _T("0 picture captured."); &G5I0:a
nCount=0; @eD~FNf-]
bRegistered=FALSE; <k8rSxn{
bTray=FALSE; ]KII?{<k
//}}AFX_DATA_INIT xVmUmftD
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 MyR\_)P?
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); 7Bb@9M?i
} orN2(:Ct7
FU3IK3}
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) #cg@Z
{ c\?/^xr'!}
CDialog::DoDataExchange(pDX); Mh@ylp+q
//{{AFX_DATA_MAP(CCaptureDlg) U},W/g-
DDX_Control(pDX, IDC_KEY, m_Key); %li{VDb
DDX_Check(pDX, IDC_CONTROL, m_bControl); K`mxb}
DDX_Check(pDX, IDC_ALT, m_bAlt); !"qEB2r
DDX_Check(pDX, IDC_SHIFT, m_bShift); ~d1RD
DDX_Text(pDX, IDC_PATH, m_Path); IaZAP
DDX_Text(pDX, IDC_NUMBER, m_Number); :zk.^q
//}}AFX_DATA_MAP mgl'
d
} xuC6EK+
X=RmCc$:
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) 78}%{7YY
//{{AFX_MSG_MAP(CCaptureDlg) wB0WR
ON_WM_SYSCOMMAND() ^{,},
i
ON_WM_PAINT() GTX&:5H\t
ON_WM_QUERYDRAGICON() (IWd?,H,n
ON_BN_CLICKED(ID_ABOUT, OnAbout) e@MCumc~+
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) X!'Xx8
ON_BN_CLICKED(ID_CHANGE, OnChange) %-zH]"Q$
//}}AFX_MSG_MAP ZXRN?b
END_MESSAGE_MAP() S %%qn
Vf2!0
BOOL CCaptureDlg::OnInitDialog() 8XXTN@&,
{ -^%"w
CDialog::OnInitDialog(); J-,X0v"
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); J!qEj{
ASSERT(IDM_ABOUTBOX < 0xF000); )FiU1E
CMenu* pSysMenu = GetSystemMenu(FALSE); yOm6HA``hT
if (pSysMenu != NULL) nFOG=>c}
{ )"Yah
CString strAboutMenu; zL=I-f Vq
strAboutMenu.LoadString(IDS_ABOUTBOX); I(eR3d:
if (!strAboutMenu.IsEmpty()) 1>*<K/\qg
{ &?6~v
pSysMenu->AppendMenu(MF_SEPARATOR);
j7%%/%$o[
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); trA `l/
} EG=>F1&M
} 8TM=AV
SetIcon(m_hIcon, TRUE); // Set big icon SVeU7Q6-
SetIcon(m_hIcon, FALSE); // Set small icon ^,r;/c9A8
m_Key.SetCurSel(0); NWX%0PGZ
RegisterHotkey(); R3=E?us!
CMenu* pMenu=GetSystemMenu(FALSE); Pg}G4L?H;J
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); E<_6OCz
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); c8 fb)`,k
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); /60=N`i
return TRUE; // return TRUE unless you set the focus to a control .jU0Hu{F4
} !,WRXE&j
n_gB#L$
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) gI$`d?[0{
{ z?g4^0e
if ((nID & 0xFFF0) == IDM_ABOUTBOX) ^E,UcK;
{ "s^@PzQpN
CAboutDlg dlgAbout; ;^SgV
dlgAbout.DoModal(); 3W00,f^9
} ijSYQ
else Vc<n6
{ <GlV!y
CDialog::OnSysCommand(nID, lParam); H`..)zL|
} lY,1 w
} ~DS9{Y
P?-44m#
void CCaptureDlg::OnPaint() JVCgYY({KQ
{ !I
P*
if (IsIconic()) I!@`_Q9N
{ ~d8o,.n`1
CPaintDC dc(this); // device context for painting |/ 7's'
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); LxGh *7K-
// Center icon in client rectangle B(NL3WJ
int cxIcon = GetSystemMetrics(SM_CXICON); p 8rAtz>=J
int cyIcon = GetSystemMetrics(SM_CYICON); +OP' /
CRect rect; ;Q 6e&Ips/
GetClientRect(&rect); 3
+9|7=d
int x = (rect.Width() - cxIcon + 1) / 2; ;0{*V5A
int y = (rect.Height() - cyIcon + 1) / 2; KPrxw }P
// Draw the icon G-> @
dc.DrawIcon(x, y, m_hIcon); `{;&Qcg6m
} Y)5}bmL
else uvd>
{ (S{c*"}2
CDialog::OnPaint(); <\
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} \Fjq|3`<l
} NV ~i4R*#
Hc3/`.nt
HCURSOR CCaptureDlg::OnQueryDragIcon() e6a8ad
{ 7]53GGNO
return (HCURSOR) m_hIcon; |bUmkw
} z<XS"4l?W
g#NUo/
void CCaptureDlg::OnCancel() nr6U>
KR^
{ eHIC'b.
if(bTray) <<6#Uz.1
DeleteIcon(); bsDUFXH]
CDialog::OnCancel(); J?DyTs3Z
} D]y.!D{l2
9a,CiH%@
void CCaptureDlg::OnAbout() VUhu"h@w%
{ 2sq<"TlQXI
CAboutDlg dlg; J>|`
dlg.DoModal(); ~0:c{v;4
} n\,W:G9AR7
3_:k12%p
void CCaptureDlg::OnBrowse() Ue%5
:Sdr
{ ]>j_
Y,
CString str; -': tpJk
BROWSEINFO bi; QJ'C?hn
char name[MAX_PATH]; YkbLf#2AE|
ZeroMemory(&bi,sizeof(BROWSEINFO)); u{^Kyo#v
bi.hwndOwner=GetSafeHwnd(); o^J&c_U\3'
bi.pszDisplayName=name; {%dQV#'c
bi.lpszTitle="Select folder"; "=O)2}
bi.ulFlags=BIF_RETURNONLYFSDIRS; \6L=^q=
LPITEMIDLIST idl=SHBrowseForFolder(&bi); P40eK0e6
if(idl==NULL) S d -+a
return; j$Co-b1
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); 0}!lN{m?
str.ReleaseBuffer(); ^hJ,1{o
m_Path=str; T9yW# .
if(str.GetAt(str.GetLength()-1)!='\\') *O2j<3CHf
m_Path+="\\"; uLht;-`{n
UpdateData(FALSE); l"Q8`
} \U8Vsx1tl
D:0PppE
void CCaptureDlg::SaveBmp() '-qc\6UY
{ ':@qE\(
CDC dc; UNae&Zir
dc.CreateDC("DISPLAY",NULL,NULL,NULL); 2sH5<5G'
CBitmap bm; =<icHt6s
int Width=GetSystemMetrics(SM_CXSCREEN); N\$6R-L
int Height=GetSystemMetrics(SM_CYSCREEN); nXjUTSGa)
bm.CreateCompatibleBitmap(&dc,Width,Height); `MS=/x E
CDC tdc; HF:PF"|3
tdc.CreateCompatibleDC(&dc); ;2~Q97c0
CBitmap*pOld=tdc.SelectObject(&bm); ;DpK*A
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); x~.U,,1
tdc.SelectObject(pOld); Zl*!pQ
BITMAP btm; 1-fz564
bm.GetBitmap(&btm); Zx{'S3W
DWORD size=btm.bmWidthBytes*btm.bmHeight; z~al
h?H
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); Bc@e;k@i
BITMAPINFOHEADER bih; R
_%pR_\
bih.biBitCount=btm.bmBitsPixel; 3&
$E
bih.biClrImportant=0; J(]nPwm=.-
bih.biClrUsed=0; f]ef 1#
bih.biCompression=0; E'}$'n?:
bih.biHeight=btm.bmHeight; cE[lB08
bih.biPlanes=1; 6=k^gH[g
bih.biSize=sizeof(BITMAPINFOHEADER); OWzIea@
bih.biSizeImage=size; %K4-V5f
bih.biWidth=btm.bmWidth; iD~s,
bih.biXPelsPerMeter=0; hb{(r@[WHv
bih.biYPelsPerMeter=0; FdD'Hp+
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); @2<J_Ja
static int filecount=0; "Y+`U
CString name; ([|M,P6e)U
name.Format("pict%04d.bmp",filecount++);
+gkB
name=m_Path+name; g`1i[Iu2
BITMAPFILEHEADER bfh; N C&1l]
bfh.bfReserved1=bfh.bfReserved2=0; 4$rO,W/&0
bfh.bfType=((WORD)('M'<< 8)|'B'); |qD<h
bfh.bfSize=54+size; s.U p<Rw
bfh.bfOffBits=54; o/xE
O=AW
CFile bf; pI4<`
K
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ V&