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:
gU7@}P
tZS-e6*S 一、实现方法
EG<YxNX, j rX.e 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:
MP|J 0=H5 b[Z5:[@\# #pragma data_seg("shareddata")
&uwj&-u? HHOOK hHook =NULL; //钩子句柄
~f&lQN'1 UINT nHookCount =0; //挂接的程序数目
RbUhLcG5 static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
0n25{N static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
0f.rjd static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
d\Xi1&& static int KeyCount =0;
rlEp&"+|M static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
yUb$EMo\ #pragma data_seg()
'j84-U{&) ,wJ#0? 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。
|1GR:b24 v:*t5M
> 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:
$vNz^!zgV 2ZMYA=[! BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
W=v4dy]B cKey,UCHAR cMask)
2Y~6~*8*~ {
3V]B|^S BOOL bAdded=FALSE;
kG:,Ff> for(int index=0;index<MAX_KEY;index++){
V`OeJVe if(hCallWnd[index]==0){
]I9Hbw hCallWnd[index]=hWnd;
GzJLG=M HotKey[index]=cKey;
a+$WlG/x HotKeyMask[index]=cMask;
z4f\0uQ bAdded=TRUE;
R u^v!l`!7 KeyCount++;
C:qb-10|A break;
=`f6@4H }
jk-hIl& }
]C|Zs=5 return bAdded;
ng]jpdeA }
P+iZ5S\kL= //删除热键
6LUO BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
c}iVBN6~.< {
{C>.fg%t BOOL bRemoved=FALSE;
N&`VMEB)k for(int index=0;index<MAX_KEY;index++){
"4c
?hH:C if(hCallWnd[index]==hWnd){
D9H(kk
if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
{R[FwB^7wJ hCallWnd[index]=NULL;
j4wcxZYY~ HotKey[index]=0;
,?Pn-aC+ HotKeyMask[index]=0;
d,}fp) bRemoved=TRUE;
h^F^|WT$ KeyCount--;
M_tY: v break;
Ri]7=.QI` }
G}aw{Vbg_ }
}mRus<Ax }
>
Y
<in/ return bRemoved;
`ReTfz;o }
xaO9?{O TJ@@kSSbl ZhqrN]x DLL中的钩子函数如下:
rzJNHf=FVY =5NrkCk#V LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
@OOnO+g {
7n*,L5%?]4 BOOL bProcessed=FALSE;
9-;ujl?{ if(HC_ACTION==nCode)
`Tt}:9/3 {
:'aT4 if((lParam&0xc0000000)==0xc0000000){// 有键松开
.Ap-<FB switch(wParam)
jEj#|w {
v. ,|#}0 o case VK_MENU:
>AsD6]
MaskBits&=~ALTBIT;
*"V5j#F_ break;
av>c case VK_CONTROL:
E"l&<U MaskBits&=~CTRLBIT;
D>9~JHB break;
tx}}Kd case VK_SHIFT:
J(*qOGBD MaskBits&=~SHIFTBIT;
L/1zG/@ break;
l2uh"! default: //judge the key and send message
(vm&&a@ break;
sS 5 ]d8
}
Rk2V[R.`S for(int index=0;index<MAX_KEY;index++){
|FZ)5 if(hCallWnd[index]==NULL)
DA)+)PhY7K continue;
Q3MG+@) S if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
D"o}X TH {
1PWs">*( SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
Bw-<xwD bProcessed=TRUE;
T'9I&h%\ }
NNZ%jJy?=, }
":E^&yQ }
4 4bTx y else if((lParam&0xc000ffff)==1){ //有键按下
%2Q:+6) switch(wParam)
,Y&LlB 2 {
Le3H!9lbc case VK_MENU:
}:u" ?v=|j MaskBits|=ALTBIT;
L3:dANG break;
b_=$W case VK_CONTROL:
O+I\Q? MaskBits|=CTRLBIT;
+jzwi3B` break;
n:JWu0,h case VK_SHIFT:
cW B> MaskBits|=SHIFTBIT;
*yJCnoF break;
z@\C/wX default: //judge the key and send message
&$yC+cf break;
n4Fh*d ixg }
8A/;a{ for(int index=0;index<MAX_KEY;index++){
aty"6~ if(hCallWnd[index]==NULL)
4Q2=\-KFj continue;
}7iWm XlI if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
PI{;3X}9$, {
;J|sH>i SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
JmDi{B? bProcessed=TRUE;
j^ L"l;m }
MhMY"bx8 }
)cA#2mlS'1 }
Jy&O4g/'5 if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
[{.e1s<EK for(int index=0;index<MAX_KEY;index++){
Q 6djfEN> if(hCallWnd[index]==NULL)
OiI[w8 continue;
#<ppiu$ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
r|$@Wsb?# SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
~(E.$y7P //lParam的意义可看MSDN中WM_KEYDOWN部分
}{>)2S }
j8p</gd }
nn>1OO }
b&:>v9U return CallNextHookEx( hHook, nCode, wParam, lParam );
+a$'<GvP }
#/fh_S'Z O~t]:p9_ 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
4]L5%=atn N@D]Q&;+(T BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
8S2sNpLi-g BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
*`~
woF dQUZ11 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
X0<qG P:GAJ->;]> LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{)j~5m.,/o {
Oax*3TD if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
#+)AIf {
I&9_F%rX //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
"YU<CO;4VV SaveBmp();
8bQ\7jb return FALSE;
l*^J}oY }
W[trsFP1? …… //其它处理及默认处理
@tQu3Rq@ }
zTtn`j$ y V=Ku p=F!)TnJN 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。
yo\R[i( 7!%/vO0m 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。
L%G/%*7;c hY$gzls4 二、编程步骤
L?~>eT 12
y=Eh 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
Dq=&K,5; Y,1ZvUOB 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
Y+il>.Z u6hDjN 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
{Ju Z(Styn/x 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
a?Q\nu1 W+HiH`Qb] 5、 添加代码,编译运行程序。
)xJCH9h SU,S1C_q8 三、程序代码
gc~nT/lfK Z)
nB ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
sVdn>$KXk #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
0,~f"Dyqy #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
iuxI$
#if _MSC_VER > 1000
l%vX$Kw #pragma once
O~3<P3W #endif // _MSC_VER > 1000
_v~c3y). #ifndef __AFXWIN_H__
+ucj>g1(# #error include 'stdafx.h' before including this file for PCH
Y"Y%JJ.J #endif
yV{&x #include "resource.h" // main symbols
G]Rb{v,r class CHookApp : public CWinApp
'i-6JG% {
gcS?r : public:
x`7Ch3`4} CHookApp();
|tK_Bn // Overrides
2~`lvx // ClassWizard generated virtual function overrides
@9,=|kxK //{{AFX_VIRTUAL(CHookApp)
R]dN-'U public:
R/!lDv!
virtual BOOL InitInstance();
g]kM7,/M virtual int ExitInstance();
e6?iQ0 //}}AFX_VIRTUAL
9;W2zcN //{{AFX_MSG(CHookApp)
*\#/4_yB} // NOTE - the ClassWizard will add and remove member functions here.
12 {F // DO NOT EDIT what you see in these blocks of generated code !
z{wW6sgPr //}}AFX_MSG
P
X9GiJN " DECLARE_MESSAGE_MAP()
d|I_SI1 };
!VLk|6mn LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
:/rl \woA> BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
}s+ t*z BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
ibzcO,c BOOL InitHotkey();
y]3`U
UvXD BOOL UnInit();
dO?zLc0f #endif
l=|>9,La }%8 :8_Ke //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
@=
E~` #include "stdafx.h"
E[$"~|7|$ #include "hook.h"
@`Fv}RY{ #include <windowsx.h>
'=s{9lxn^ #ifdef _DEBUG
6XP>qI,AJ #define new DEBUG_NEW
"0*yD[2 #undef THIS_FILE
w!/\dqjv static char THIS_FILE[] = __FILE__;
^$FNu~|K #endif
H1bHQB #define MAX_KEY 100
fnXYp
! #define CTRLBIT 0x04
<x!q!; #define ALTBIT 0x02
(-}:'5|Yj #define SHIFTBIT 0x01
GG0H3MSc #pragma data_seg("shareddata")
s=S9y7i(R HHOOK hHook =NULL;
q?R^~r UINT nHookCount =0;
G3.*fSY$.< static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
i2+r#Hw#5R static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
;C^!T static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
.j
et0w static int KeyCount =0;
$ol]G`+ static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
_+sb~ #pragma data_seg()
%wFz4: HINSTANCE hins;
}nEa9h void VerifyWindow();
8ln{!,j; BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
UC
e{V ]T //{{AFX_MSG_MAP(CHookApp)
Ob ~7w[n3 // NOTE - the ClassWizard will add and remove mapping macros here.
]QU
9|1 // DO NOT EDIT what you see in these blocks of generated code!
saRYd{%+ //}}AFX_MSG_MAP
f 7R/i END_MESSAGE_MAP()
r|MBkpcvp 1'NJ[
C` CHookApp::CHookApp()
|mM K9OEu {
jj,CBNo( // TODO: add construction code here,
-/V,<@@T // Place all significant initialization in InitInstance
N!PPL"5z }
Vjdu9Ez '2S/FOb CHookApp theApp;
[X9T$7q#
LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
DX2_}|$! {
SD/=e3 BOOL bProcessed=FALSE;
|D% O`[k+ if(HC_ACTION==nCode)
$#z-b@s=B {
{4n if((lParam&0xc0000000)==0xc0000000){// Key up
4,, @o
switch(wParam)
}s7@0#j@a {
OXxgnn>W' case VK_MENU:
m/e*P*\= MaskBits&=~ALTBIT;
FNN7[ku! break;
YujR}=B!/ case VK_CONTROL:
*M? [Gro/ MaskBits&=~CTRLBIT;
\?D~&d,a= break;
oW5Ov case VK_SHIFT:
70GwTK.{~ MaskBits&=~SHIFTBIT;
=.`:jZG break;
k/Z]zZC default: //judge the key and send message
}>5R9 break;
HUFm@? }
=Lh8#>T\h for(int index=0;index<MAX_KEY;index++){
{e+}jZ[L if(hCallWnd[index]==NULL)
`@<~VWe5 continue;
WaPuJ5;e if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
&gg Om {
Zg*XbX SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
a'%eyN bProcessed=TRUE;
;b5^)S }
M=M~M$K }
s||c#+j"8 }
R?3N><oh* else if((lParam&0xc000ffff)==1){ //Key down
4C#r=Uw` switch(wParam)
eP|_ {
pJ3-f k"i case VK_MENU:
zH13~\ MaskBits|=ALTBIT;
6Y%{ YQ}s| break;
^, &' case VK_CONTROL:
,/YTW@N MaskBits|=CTRLBIT;
~eZ]LW]) break;
s$JO3-) case VK_SHIFT:
HdR TdV MaskBits|=SHIFTBIT;
>1qum' break;
N!//m?} default: //judge the key and send message
)Z*nm<= break;
N;HG@B!m }
zcy`8&{A<? for(int index=0;index<MAX_KEY;index++)
y]okOEV0 {
X:/7#fcG8 if(hCallWnd[index]==NULL)
?$ Dc> continue;
jK]An;l{Z if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
k|^YYi=xF {
uhm3}mWv SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
h:AB`E1 bProcessed=TRUE;
YfstE3BV }
-l~+cI \2 }
P8X59^cJ }
7<*,O&![| if(!bProcessed){
35H.ZXQp- for(int index=0;index<MAX_KEY;index++){
T8BewO=} if(hCallWnd[index]==NULL)
I vX+yU continue;
~_F <"40 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
1{<r~ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
+w2 ` }
l*z+<c6$_ }
\>tx:;D3 }
C)mR~Ey return CallNextHookEx( hHook, nCode, wParam, lParam );
o3X0c6uU }
V6bjVd9|Z )*L=$0R BOOL InitHotkey()
O'{g{ {
c
'rn8Jo} if(hHook!=NULL){
z[qi~&7:v nHookCount++;
<2e[; $ return TRUE;
eUKl( }
3>6rO4, else
FOAXm4" hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
4$y P_3 if(hHook!=NULL)
Mt*V-`+\ nHookCount++;
Nwg?(h# return (hHook!=NULL);
=PjxMC._ }
@e-2]z BOOL UnInit()
#]h&GX {
z~th{4#E; if(nHookCount>1){
cAn_:^ nHookCount--;
A[`2Mnj return TRUE;
)~CNh5z6Y }
&W}6Xg( BOOL unhooked = UnhookWindowsHookEx(hHook);
T7^?j :kJ/ if(unhooked==TRUE){
C;%1XFzM nHookCount=0;
B2Kh~Xd hHook=NULL;
%R<xe.X }
A`* l+M^z return unhooked;
bZ#5\L2 }
6MpV,2:> q8}he~a BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
nwVW'M]r {
4>Y*owa4 BOOL bAdded=FALSE;
Nj.;mr< for(int index=0;index<MAX_KEY;index++){
l(HxZlHr if(hCallWnd[index]==0){
SPp|/ [i7 hCallWnd[index]=hWnd;
_h I81Lzq HotKey[index]=cKey;
hOYP~OR HotKeyMask[index]=cMask;
lMgPwvs' bAdded=TRUE;
!j&#R%D KeyCount++;
"TVmxE%( break;
~
\b~ }
# S(b2LEc }
7u:QT2=& return bAdded;
+ (Jh$b_ }
VNs3. %Iiu#- 'B BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
buDz]ec
b {
S4pEBbV^n BOOL bRemoved=FALSE;
*=P*b|P"$ for(int index=0;index<MAX_KEY;index++){
('2Z&5 if(hCallWnd[index]==hWnd){
TUARYJ6= if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
m%b#B>J,n hCallWnd[index]=NULL;
$WO{!R HotKey[index]=0;
z 'V$)U$f HotKeyMask[index]=0;
F<^f6z8 bRemoved=TRUE;
pwRCfR)" X KeyCount--;
7gx?LI_e break;
YRCOh:W* }
RN$>!b/ }
6m@B.+1 }
vSY
YetL return bRemoved;
g""Ep }
B}J0d J06D_'{ void VerifyWindow()
yG;@S8zC {
I]%Kd(' for(int i=0;i<MAX_KEY;i++){
0es\
j6c if(hCallWnd
!=NULL){ j9X|c7|
if(!IsWindow(hCallWnd)){ vnS8N
hCallWnd=NULL; 6ld /E
HotKey=0; j.[W] EfL~
HotKeyMask=0; !="8ok+
KeyCount--; y&V'GhW!dd
} P26"z))~d
} tO?-@Qf/9<
} HQnc`2
} OuKRaZ
@)wsHW%cjz
BOOL CHookApp::InitInstance() |D_4 iFC
{ .#Z"Sj
AFX_MANAGE_STATE(AfxGetStaticModuleState()); {gxP_>
hins=AfxGetInstanceHandle(); #N;&^El
InitHotkey(); h^,av^lg^
return CWinApp::InitInstance(); SXC
7LJm<g
} &Mz]y?k'
AY;[v.Ff4
int CHookApp::ExitInstance() R:rols"QM
{ @<&u;8y-Cn
VerifyWindow(); o$Y#C{wC%
UnInit(); c7.M\f P
return CWinApp::ExitInstance(); >hzSd@J&
} ,N
nh$F
(/E@.z[1
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file 0\,!
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) 4K 8 (H9(
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ *U$%mZS]1
#if _MSC_VER > 1000 fe8hgTP|
#pragma once FNw]DJ]
#endif // _MSC_VER > 1000 z|t2;j[
M%g2UP
class CCaptureDlg : public CDialog X3~`~J
{ B4 5#-V
// Construction Ug384RzHN
public: %m|1LI(
BOOL bTray; [Zzztn+
BOOL bRegistered; SM1L^M3)
BOOL RegisterHotkey(); qlnA7cK!
UCHAR cKey; O<ybiPR
UCHAR cMask; }
7ND]y48
void DeleteIcon(); @(0O9L
F
void AddIcon(); 4dm0:,
G
UINT nCount; ~,Yd.?.TI
void SaveBmp(); IfT: 9
&
CCaptureDlg(CWnd* pParent = NULL); // standard constructor /x4L,UJ= P
// Dialog Data dkqyn"^
//{{AFX_DATA(CCaptureDlg) c?KIHZ0
enum { IDD = IDD_CAPTURE_DIALOG }; #<s"?Y%-
CComboBox m_Key; @}Q!K*
BOOL m_bControl; UFC^lv
BOOL m_bAlt; X\>/'fC$
BOOL m_bShift; 'ka$@,s :
CString m_Path; 9Q*:II
CString m_Number; g1:%986jv
//}}AFX_DATA H7k@Br
// ClassWizard generated virtual function overrides 3w"_Onwk
//{{AFX_VIRTUAL(CCaptureDlg) T%;NW|mH&
public: "{trK?-8%
virtual BOOL PreTranslateMessage(MSG* pMsg); !}5rd\
protected: A8o)^T(vJ
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support i g
.
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); LDYa{w-t
//}}AFX_VIRTUAL \cf'Hj}
// Implementation 4eF{Y^
protected: +zXcTT[V
HICON m_hIcon; D6"d\Fm<
// Generated message map functions t<j_` %`8
//{{AFX_MSG(CCaptureDlg) vF&0I2T~l
virtual BOOL OnInitDialog(); B79~-,Yh
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); - P"
afx_msg void OnPaint(); YLS*uXB&.
afx_msg HCURSOR OnQueryDragIcon(); LFZ*mRiuKE
virtual void OnCancel(); _^`V0>Mh:
afx_msg void OnAbout(); TuaP
afx_msg void OnBrowse(); z`NJelcuz\
afx_msg void OnChange(); ;*ni%|K
//}}AFX_MSG Wyow MFp
DECLARE_MESSAGE_MAP() 7#Uzz"^
}; w9mAeGyE
#endif [_}8Vv&6
Rf2mBjJ(z
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file Xbrc_V\_
#include "stdafx.h" WJ LqH<
#include "Capture.h" _%23L|
#include "CaptureDlg.h" Mz86bb^J
#include <windowsx.h> yk(r R
#pragma comment(lib,"hook.lib") iX WB
#ifdef _DEBUG JT=ax/%Mo
#define new DEBUG_NEW =-&h@mB;G
#undef THIS_FILE |n^rI\p%
static char THIS_FILE[] = __FILE__; .g?D3$|K
#endif >yVp1Se
#define IDM_SHELL WM_USER+1 cYXL3)p*Q
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); n,LM"N:
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); e Qk5:{[
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; ?RW1%+[
class CAboutDlg : public CDialog I Gi9YpI&K
{ -@Urq>^v T
public: Qpj[]c5
CAboutDlg(); [LUqF?K&
// Dialog Data T LF'7ufq
//{{AFX_DATA(CAboutDlg) bTZ.y.sI
enum { IDD = IDD_ABOUTBOX }; =+I-9=
//}}AFX_DATA <M}O&?N
8x
// ClassWizard generated virtual function overrides g/\cN(X
//{{AFX_VIRTUAL(CAboutDlg) 2@@evQ
protected: P2|+7D:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support uu"hu||0_
//}}AFX_VIRTUAL 0\s&;@xKk
// Implementation da_0{;wR
protected: @; I9e
//{{AFX_MSG(CAboutDlg) #!%zf{(C+
//}}AFX_MSG Oamz>Hplu
DECLARE_MESSAGE_MAP() ^zS;/%
}; Bu+?N%CBi
L6;'V5Mg72
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) Ta/u&t4
{ *"4l}&
//{{AFX_DATA_INIT(CAboutDlg) pU[yr'D.r
//}}AFX_DATA_INIT y$_]}<b
} WK@<#
}TAG7U*
void CAboutDlg::DoDataExchange(CDataExchange* pDX) -_eG/o=M
{ Cud!JpL
CDialog::DoDataExchange(pDX); TIR Is1
//{{AFX_DATA_MAP(CAboutDlg) m~fDDQs
//}}AFX_DATA_MAP pn){v
} mEkYT
w`3.wALb
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) .+<Ka0
//{{AFX_MSG_MAP(CAboutDlg) eH[i<Z
// No message handlers x5Fo?E
//}}AFX_MSG_MAP ^tI&5S]nE
END_MESSAGE_MAP() <[K)PI
m|t\w|B2
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) N:S2X+}(
: CDialog(CCaptureDlg::IDD, pParent) $|TLt{ K
{ 6Z2|j~
//{{AFX_DATA_INIT(CCaptureDlg) 9_e_Ne`i`?
m_bControl = FALSE; (/!@
-]1
m_bAlt = FALSE; )0"T?Ivp]
m_bShift = FALSE; U@{>+G[
m_Path = _T("c:\\"); 7^mQfQv
m_Number = _T("0 picture captured."); Ap;^\5
nCount=0; <*-8E(a
bRegistered=FALSE; m/(/!MVy
bTray=FALSE; 7Cbr'!E\_V
//}}AFX_DATA_INIT :i@
$s/
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 $b2~H+u(
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); T!HAE#xC
} :nc%:z=O
/=A@O !l
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) rmtCCPF?0
{
2Vu?Y
CDialog::DoDataExchange(pDX); 9
`q(_\ x
//{{AFX_DATA_MAP(CCaptureDlg) RrYNtc
DDX_Control(pDX, IDC_KEY, m_Key); <F"G~.^ *s
DDX_Check(pDX, IDC_CONTROL, m_bControl); ?4Fev_5m
DDX_Check(pDX, IDC_ALT, m_bAlt); 5p5"3m;M7
DDX_Check(pDX, IDC_SHIFT, m_bShift); e"XolM0IM
DDX_Text(pDX, IDC_PATH, m_Path); Wm5[+z|2?9
DDX_Text(pDX, IDC_NUMBER, m_Number); QnS#"hc\a
//}}AFX_DATA_MAP *M0O&" ~j
} `P-d. M6Oa
W1t_P&i
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) F:[[@~z
//{{AFX_MSG_MAP(CCaptureDlg) ]` A*7
ON_WM_SYSCOMMAND() UQ7La 7"
ON_WM_PAINT() n<<arO"cv
ON_WM_QUERYDRAGICON() ?~#[cx
ON_BN_CLICKED(ID_ABOUT, OnAbout) Z7[S698
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) J^%E$s
ON_BN_CLICKED(ID_CHANGE, OnChange) ^Jdg%U?
//}}AFX_MSG_MAP #o9CC)q5G
END_MESSAGE_MAP() ITi#p%
!|]k2=+I
BOOL CCaptureDlg::OnInitDialog() ,Mi'NO
{ cz>)6#&O
CDialog::OnInitDialog(); D`X<b4e8/
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); #F2DEo^0
ASSERT(IDM_ABOUTBOX < 0xF000); burSb:JF
CMenu* pSysMenu = GetSystemMenu(FALSE); kM=&Tfpj
if (pSysMenu != NULL) 6Yt3Oq<U
{ NLYf
CString strAboutMenu; x2aG5@<3
strAboutMenu.LoadString(IDS_ABOUTBOX); -f1}N|hy
if (!strAboutMenu.IsEmpty()) ;X0uA?
{ I,,SR"
pSysMenu->AppendMenu(MF_SEPARATOR); ,1lW`Krx
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); /h`gQyGuY
} ]n<Ba7Y
} \u[5O@v#
SetIcon(m_hIcon, TRUE); // Set big icon !8W0XUqh+
SetIcon(m_hIcon, FALSE); // Set small icon CRrEs
18;#
m_Key.SetCurSel(0); IB 4L(n1
RegisterHotkey(); 1p&=tN
CMenu* pMenu=GetSystemMenu(FALSE); =?wDQ:
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); QR8]d1+GV
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); nGc'xQy0
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); PU B0H
return TRUE; // return TRUE unless you set the focus to a control )J+rt^4|
} nU\.`.39
+
T2)CiR-b
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) Uspv^O9_
{ {TMng&
if ((nID & 0xFFF0) == IDM_ABOUTBOX) qs_cC3"=%=
{ /RxqFpu|.
CAboutDlg dlgAbout; p|a`Q5z!
dlgAbout.DoModal(); 0o BAJP
} 0]]OE+9<c
else ba
,n/yH
{ o_kZ
CDialog::OnSysCommand(nID, lParam); |Zp')
JiS
} ;pfN
} FYefn3b
.'2I9P\!
void CCaptureDlg::OnPaint() x;~@T9.
{ AE`{k-3=%
if (IsIconic()) -ik((qx_
{ <@+L^Ps~z
CPaintDC dc(this); // device context for painting NE)w$>0M
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); M\7F1\ X
// Center icon in client rectangle d/$e#8
int cxIcon = GetSystemMetrics(SM_CXICON); sE|8a
int cyIcon = GetSystemMetrics(SM_CYICON); VsK8 :[Al
CRect rect; $kMe8F_
GetClientRect(&rect); .RmoO\
,Gm
int x = (rect.Width() - cxIcon + 1) / 2; 3!QXzT$E
int y = (rect.Height() - cyIcon + 1) / 2; Xa$%`
// Draw the icon *H=h7ESq
dc.DrawIcon(x, y, m_hIcon); T%Zfo7
} 6Rq +=X
else yOb']
{ mRGr+m
CDialog::OnPaint(); nKtRJ,>
} :fy,%su
} =T?Xph{
i??+5o@uTF
HCURSOR CCaptureDlg::OnQueryDragIcon() HxLuJ
{ c*"P+
return (HCURSOR) m_hIcon; IEJ)Q$GI#
} Ag2Q!cq
H/8u?OC
void CCaptureDlg::OnCancel() (R RRG;*n#
{ 6!*zgA5M'
if(bTray)
z{V#_(
DeleteIcon(); J\'f5)k
CDialog::OnCancel(); bS55/M w
} ^U,C])n
a_b+RMy
void CCaptureDlg::OnAbout() ^r7KEeVD
{ .i` -t"
CAboutDlg dlg; M;KeY[u
dlg.DoModal(); ~=oCou`XF
} Ip8:~Fl]
@j%@Z
void CCaptureDlg::OnBrowse() q1r-xsjV=
{ 9fM=5
CString str; P$^I\aGO
BROWSEINFO bi; q%/.+g2-\
char name[MAX_PATH]; ('d,Sh
ZeroMemory(&bi,sizeof(BROWSEINFO)); JlEfUg#*
bi.hwndOwner=GetSafeHwnd(); ;4v`FC>
bi.pszDisplayName=name; ,,)'YhG(
bi.lpszTitle="Select folder"; $I ,Np)i
bi.ulFlags=BIF_RETURNONLYFSDIRS; Ze[\y(K!
LPITEMIDLIST idl=SHBrowseForFolder(&bi); Jk{v(W#
if(idl==NULL) 4wa3$Pk
return; jC?l :m?
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); b0se-#+
str.ReleaseBuffer(); 3k8.5W
m_Path=str; %6M%PR~u
if(str.GetAt(str.GetLength()-1)!='\\') !Ow
M-t
m_Path+="\\"; X;vUz
UpdateData(FALSE); 6 vJS"+ <
} [+}0K{(O=
XJq]l6a:
void CCaptureDlg::SaveBmp() jgkY^l
{ SVV-zz]3M
CDC dc; mfDt_Iq
dc.CreateDC("DISPLAY",NULL,NULL,NULL); *Id[6Z
CBitmap bm;
nI+.De~
int Width=GetSystemMetrics(SM_CXSCREEN); @|'9nPern
int Height=GetSystemMetrics(SM_CYSCREEN); kKC]
n
bm.CreateCompatibleBitmap(&dc,Width,Height); Sb)}
CDC tdc; 5pHv5e
tdc.CreateCompatibleDC(&dc); V;~\+@
CBitmap*pOld=tdc.SelectObject(&bm); Lo}/k}3Sx
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); -h8Z@r~a/
tdc.SelectObject(pOld); 6D{70onY+
BITMAP btm; *$1F|G
bm.GetBitmap(&btm); X>]<rEh
DWORD size=btm.bmWidthBytes*btm.bmHeight; yRQNmR;Uy
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); #}tdA(
-
BITMAPINFOHEADER bih; dWhqu68_
bih.biBitCount=btm.bmBitsPixel; #AO}JP
bih.biClrImportant=0; "Z dI~
bih.biClrUsed=0; TKEcbGhy
bih.biCompression=0; uOd1:\%*
bih.biHeight=btm.bmHeight; :."+&gb
bih.biPlanes=1; ]{ch]m
bih.biSize=sizeof(BITMAPINFOHEADER); v+<4?]EJ
bih.biSizeImage=size; sdgI ,
bih.biWidth=btm.bmWidth; Az>r}*FGr
bih.biXPelsPerMeter=0; `P*w ZKlW
bih.biYPelsPerMeter=0; : 'jVA
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); 87+u`~
static int filecount=0;
9p4SxMMO
CString name; 7+6I~&x!Lz
name.Format("pict%04d.bmp",filecount++); ~!%G2E!
name=m_Path+name; <