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:
y+X2Pl
y`\@N"Cf 一、实现方法
O#F `);AW(Q 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:
s"0Y3x3 9`1O"R/ #pragma data_seg("shareddata")
T^Y([23 HHOOK hHook =NULL; //钩子句柄
0O9Ni='Tn UINT nHookCount =0; //挂接的程序数目
OjFLPGRCh static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
G~Hzec{#tg static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
:# .<[ static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
F<L
EQ7T
static int KeyCount =0;
W{5#@_pL static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
19HM])Zw\ #pragma data_seg()
,24p%KJ*X '9S8}q 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。
6eT5ktf Ka[t75~; 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:
gG]Eeu+z
qCljo5Tq' BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
v16JgycM cKey,UCHAR cMask)
o<[#0T^K {
]Bcp;D BOOL bAdded=FALSE;
PMNjn9d for(int index=0;index<MAX_KEY;index++){
{l>yi if(hCallWnd[index]==0){
B.dH(um hCallWnd[index]=hWnd;
pnjXf.g"O HotKey[index]=cKey;
H7d/X HotKeyMask[index]=cMask;
&X|#R1\ bAdded=TRUE;
&7`^i.fh) KeyCount++;
;LG#.~f break;
zbk q }
Jz7!4mu }
7[> 6i return bAdded;
s!?`T1L }
lBK}VU^ //删除热键
m;'6MHx; BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
@ o3T {
!9[>L@#G BOOL bRemoved=FALSE;
i(AT8Bo2 for(int index=0;index<MAX_KEY;index++){
1Md if(hCallWnd[index]==hWnd){
G_0(
|% if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
V8rx#H~ hCallWnd[index]=NULL;
v3aYc:C HotKey[index]=0;
%/|9@e r HotKeyMask[index]=0;
;5zz<;Zy bRemoved=TRUE;
Oy%''+g KeyCount--;
o=50>$5jlS break;
P!H_1RwXKC }
l8I /0`_ }
Tw""}|] g }
4x return bRemoved;
D)j(,vt }
ZZHDp&lh} Kla'lCZ
f4Xk,1Is DLL中的钩子函数如下:
KVn []@# 2 lj'"nm LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
^Pbk#|$rU {
Nd$W0YN: BOOL bProcessed=FALSE;
MUTj-1 H6) if(HC_ACTION==nCode)
`(YxI {
I1pWaQ0 if((lParam&0xc0000000)==0xc0000000){// 有键松开
EdlTdn@A switch(wParam)
n/Sw P {
In18_bc case VK_MENU:
r [4tPk MaskBits&=~ALTBIT;
swM*k;$q{ break;
h| ,:e;>} case VK_CONTROL:
6LalW5I MaskBits&=~CTRLBIT;
\/: {)T~ break;
2w["aVr
= case VK_SHIFT:
,1 [q^-9 MaskBits&=~SHIFTBIT;
x4E7X_ break;
P*FMwrJj>r default: //judge the key and send message
~/98Id}v break;
,Wk?I%> }
H."EUcE{ for(int index=0;index<MAX_KEY;index++){
,.kha8v if(hCallWnd[index]==NULL)
/ c AUl continue;
DNr@u/>vB if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
sg$rzT-S4 {
nQ5n-A&[" SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
E`?3PA8 bProcessed=TRUE;
^; )8VP6 }
y#U+c*LB }
G LIi6 }
-'t)=YJ else if((lParam&0xc000ffff)==1){ //有键按下
2/"u5 switch(wParam)
:I+Gu*0WD {
]Q>.HH case VK_MENU:
ioYGZ%RG# MaskBits|=ALTBIT;
5@+,Xh,H|t break;
dwDcR,z?a case VK_CONTROL:
L)@?e?9 MaskBits|=CTRLBIT;
0=AVW`J break;
j2QmxTa! case VK_SHIFT:
/SrCElabP MaskBits|=SHIFTBIT;
4nh>'v%pD break;
b[o"7^H default: //judge the key and send message
>zXsNeGQR break;
`HZ;NRr }
s'%R for(int index=0;index<MAX_KEY;index++){
TU:7Df if(hCallWnd[index]==NULL)
Rm255zp continue;
J&.{7YF if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
EfCx`3~EX {
-o$QS, SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
`f*Q$Ulqx bProcessed=TRUE;
0w&27wW }
}]lr>"~y} }
56zL"TF` }
q|!-0B@ if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
g*03{l#P for(int index=0;index<MAX_KEY;index++){
tt0f-:# if(hCallWnd[index]==NULL)
0yuS3VY) continue;
<vONmE a if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
-jb0o/: SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
W-?()dX{ //lParam的意义可看MSDN中WM_KEYDOWN部分
y5*Z3"< }
i{`FmrPO~ }
_"bHe/'CI }
<{V(.=11 return CallNextHookEx( hHook, nCode, wParam, lParam );
\s=t|Wpu2 }
KK iE@_z BG6B : 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
`(_s|-$ * +"9%&? BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
YjxF}VI~< BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
^c^#dpn >8WP0Qx/ 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:
El.hu%#n*G [lWQ'DZ LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
/s@o Z{h {
1(I6.BHW if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
zO ).T
M_ {
x4;"!Kq\ //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
JtEo'As:[ SaveBmp();
lij.N)E return FALSE;
JBE!j-F }
Sjvdirr …… //其它处理及默认处理
m1B+31'>^ }
Tn*9lj4 pWK(z[D o0ifp=V
y 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。
lQ" p ! D~hg$XzK 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
\m(VdE K{|p~B 二、编程步骤
*>|gxM8 gW>uR3Ca4 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
YG@t5j#b 9 7GV2]-M 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
>O*IQ[r- )Im#dVQs= 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
W+UfGk}A 6-z%633DL 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
O_wEcJPE i~I%D%; 5、 添加代码,编译运行程序。
}001K _jLL_GD 三、程序代码
DI:]GED"= qU%/W|LY ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
ok!L.ac #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
,]46I.] #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
wQ^EYKD #if _MSC_VER > 1000
K@I
D/]PF #pragma once
Al}6q{E9+8 #endif // _MSC_VER > 1000
B*
?]H*K #ifndef __AFXWIN_H__
fI&t] #error include 'stdafx.h' before including this file for PCH
1_9<3,7 #endif
B8": 2HrW$ #include "resource.h" // main symbols
SxOC1+Oy class CHookApp : public CWinApp
@ ;*Ksy@1O {
^hc!FD public:
mq@6Q\Z+ CHookApp();
X:HacYqtC // Overrides
G`cHCP_n // ClassWizard generated virtual function overrides
)'l:K.F //{{AFX_VIRTUAL(CHookApp)
AL9chYP}/ public:
w>pq+og& virtual BOOL InitInstance();
hQYL`Dni virtual int ExitInstance();
/]K^
rw[ //}}AFX_VIRTUAL
)J2mM //{{AFX_MSG(CHookApp)
}>>1<P<8- // NOTE - the ClassWizard will add and remove member functions here.
#|L8tuWW // DO NOT EDIT what you see in these blocks of generated code !
`[f*Zv w //}}AFX_MSG
]A~WIF DECLARE_MESSAGE_MAP()
OLyf8&AU@ };
't:;irLW. LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
I'A_x$ib6 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
b*a#<K$T_ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
X{5vXT\/y BOOL InitHotkey();
[k.t WA,& BOOL UnInit();
NjVYLn<.r #endif
&dqLP95 |2O]R s //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
t|g4m[kr #include "stdafx.h"
.nrMfl_ #include "hook.h"
Cn,d?H #include <windowsx.h>
e7^mmm #ifdef _DEBUG
Y~c|hfL #define new DEBUG_NEW
= bfJ^]R #undef THIS_FILE
Sc\*W0m static char THIS_FILE[] = __FILE__;
t<#TJ>Le #endif
g%sluT[# #define MAX_KEY 100
k.uH~S _ #define CTRLBIT 0x04
ck:T,F{} #define ALTBIT 0x02
MqW7cjg #define SHIFTBIT 0x01
TrlZ9?3#D #pragma data_seg("shareddata")
u_@f$ HHOOK hHook =NULL;
Vr]id UINT nHookCount =0;
,]bhy p static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
LInz<bc<( static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
<c2E'U)X static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
*Fy2BZH%Q static int KeyCount =0;
PQy4{0 _ static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
Fq0i`~L~ #pragma data_seg()
5x5@t
: HINSTANCE hins;
YmL06<Mh void VerifyWindow();
95ZyP! BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
Rw"sJ) / //{{AFX_MSG_MAP(CHookApp)
qX/y5F` // NOTE - the ClassWizard will add and remove mapping macros here.
w mn+ // DO NOT EDIT what you see in these blocks of generated code!
A
9( x //}}AFX_MSG_MAP
3x`| END_MESSAGE_MAP()
c23oCfB> 8[a=OP CHookApp::CHookApp()
2GP=&K/A {
T. }1/S"m // TODO: add construction code here,
k
Z?=AXu // Place all significant initialization in InitInstance
`95r0t0hh\ }
^H~h\,;zQ p)`{Sos CHookApp theApp;
yMG1XEhuG LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
S=MEG+Ad {
HJ9Kz^TnC BOOL bProcessed=FALSE;
caIL&G, if(HC_ACTION==nCode)
C^O
VB- {
tI`Q /a5@ if((lParam&0xc0000000)==0xc0000000){// Key up
z6U\axO6 switch(wParam)
<`.X$r* {
FtpK)9/4 case VK_MENU:
MV5 _L3M MaskBits&=~ALTBIT;
U bXh,QEG* break;
N:S/SZI case VK_CONTROL:
B-xGX$<z MaskBits&=~CTRLBIT;
(/z_Q{"N break;
O9G[j=U case VK_SHIFT:
@Pm>sY}d<I MaskBits&=~SHIFTBIT;
1#C4;3i, break;
>tYm+coS default: //judge the key and send message
`nUXDmdwzO break;
IoxgjUa }
X.OD`.!> for(int index=0;index<MAX_KEY;index++){
7r7YNn/? if(hCallWnd[index]==NULL)
_tiujP continue;
-z-C*%~ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
r A`V}>Xj {
?Y$JWEPJ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
w{Ivmdto bProcessed=TRUE;
*T-<|zQ }
S'k_olx7 }
%>yG+Od5Z }
B\=L3eL<D else if((lParam&0xc000ffff)==1){ //Key down
,$@bE switch(wParam)
_G[g;$< {
sQ=]NF)\ case VK_MENU:
@D.}\( MaskBits|=ALTBIT;
&TnS4O break;
n4s+>|\M case VK_CONTROL:
s(5Y MaskBits|=CTRLBIT;
{ME2ImD break;
35A|BD)q case VK_SHIFT:
zpzK>DH( MaskBits|=SHIFTBIT;
O[\iE5+$ break;
NokU)O ;x default: //judge the key and send message
q['Euy break;
HU1h8E$- }
&4 {KV. for(int index=0;index<MAX_KEY;index++)
:nh_k4S@v {
cbNTj$'b2u if(hCallWnd[index]==NULL)
Z 6t56"u continue;
i@C].X if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
({
8-* {
Za/-i"U SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
<C_jF bProcessed=TRUE;
Z)e/!~""] }
(lXGmx8 }
Sj-n;F|=X }
Y#]+Tm(+ if(!bProcessed){
&c` nR< for(int index=0;index<MAX_KEY;index++){
bbtGXfI+SB if(hCallWnd[index]==NULL)
)YYf1o[+ continue;
i{Uc6R6 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
J; 3{3 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
,MdV;j~"' }
NiNM{[3oS }
."TxX.&HE }
zbXI% return CallNextHookEx( hHook, nCode, wParam, lParam );
3oBtP<yG. }
0QBiC]9 4qphA9i1 BOOL InitHotkey()
Z EXc%-M {
sz5MH!/PJ if(hHook!=NULL){
5Iy|BRU(% nHookCount++;
2n,*Nd` return TRUE;
aKV$pC<[o }
Hta y-PB } else
[8.c8-lZ^ hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
~t@cO.c if(hHook!=NULL)
a Fc1|.Nm nHookCount++;
nxY\|@ return (hHook!=NULL);
$CxKuB( }
&LmJ!^# BOOL UnInit()
}wWKFX {
jG6]A"pr if(nHookCount>1){
d)B@x` nHookCount--;
@*F"Q1 wI return TRUE;
4qN{n#{+] }
9V'%<pk''( BOOL unhooked = UnhookWindowsHookEx(hHook);
[=x[ w70 if(unhooked==TRUE){
gMv.V{vD nHookCount=0;
\@-@Y hHook=NULL;
wJg1Y0nh }
w4_ U0
n3 return unhooked;
z(o,m3@v }
~Xw"}S5 LnFdhrB@x BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
n?oW < & {
7@#>bE6 BOOL bAdded=FALSE;
S_iMVHe for(int index=0;index<MAX_KEY;index++){
'UkxS b if(hCallWnd[index]==0){
Q;MT"=RW hCallWnd[index]=hWnd;
!*/*8re HotKey[index]=cKey;
'QG xd!4 HotKeyMask[index]=cMask;
anuL1fXO bAdded=TRUE;
lackB2J9 A KeyCount++;
y6@0O%TDN break;
zqd@EF6/bz }
LO'**}vm }
ylUb9KusOx return bAdded;
> pgX^ }
9 ^o-EC!_ i}b${no BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
v.\*./-i {
2^XGGB0 BOOL bRemoved=FALSE;
SEORSS for(int index=0;index<MAX_KEY;index++){
`+`Z7 if(hCallWnd[index]==hWnd){
`{4i)n%e& if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
"B8Q: hCallWnd[index]=NULL;
Twh!X*uQ HotKey[index]=0;
-)s qc
P HotKeyMask[index]=0;
d; [C6d bRemoved=TRUE;
~"dA~[r
L KeyCount--;
1pQn8[sc@ break;
du+y5dw }
yZd +^QN }
+_s #2 }
jnd[6v=C7- return bRemoved;
ai}mOyJs }
-VZ-<\uH `id9j void VerifyWindow()
01[NX? qEa {
S(QpM.9* for(int i=0;i<MAX_KEY;i++){
siXr;/n" if(hCallWnd
!=NULL){ TPVVck-T8
if(!IsWindow(hCallWnd)){ :s=NUw_^
hCallWnd=NULL; mrTlXXz
HotKey=0; z|fmrwkN'$
HotKeyMask=0; 85lCj-cs
KeyCount--; wU8Mt#D!
} <wZQc
} Rn#KfI:{
} $J4 *U
} g$n7CXoT
6\L0mcXR!
BOOL CHookApp::InitInstance() /`9sPR6e
{ QFfK0X8cC
AFX_MANAGE_STATE(AfxGetStaticModuleState()); &
SiP\65N
hins=AfxGetInstanceHandle(); -7m:91x
InitHotkey(); z
MLK7+
return CWinApp::InitInstance(); e }mD]O}
} U0=]
f6 |KN+.
int CHookApp::ExitInstance() Cv
}Qwy
{ Mc#*wEo)8
VerifyWindow(); ^L0d/,ik
UnInit(); tc_286'x
return CWinApp::ExitInstance(); c?P?yIz6p
} "~E[)^ANxD
ttXXy3G#
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file 4!$s}V=6
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) ]FD'5p{
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ ()tp>
#if _MSC_VER > 1000 *+'x~a
#pragma once C?ulj9=Z
#endif // _MSC_VER > 1000 0MV>"aV
h H <J,Wn
class CCaptureDlg : public CDialog Tskq)NU
{ CxGx8*<X
// Construction vK(i9>;7
public: CQwL|$)]Y
BOOL bTray; ^Y<|F!0
BOOL bRegistered; ANvR i+ _
BOOL RegisterHotkey(); g wz7krUTe
UCHAR cKey; $\b$}wy*
UCHAR cMask; TqNadHQ
void DeleteIcon(); )=\#UE+W
void AddIcon(); 'jmTXWq*
UINT nCount; v4?x.I
void SaveBmp(); +${D
CCaptureDlg(CWnd* pParent = NULL); // standard constructor 3:5 &Aa!
// Dialog Data ~CtL9m3tO
//{{AFX_DATA(CCaptureDlg) Sa\!*e_sN
enum { IDD = IDD_CAPTURE_DIALOG }; XEC(P
CComboBox m_Key; c;{Q,"9U
BOOL m_bControl; 6Ztq
BOOL m_bAlt; 1h>yu3O
BOOL m_bShift; Ib|Rf;J~-
CString m_Path; RbCPmiZcH
CString m_Number; u4.ngjJ
//}}AFX_DATA |UP `B|
// ClassWizard generated virtual function overrides cKN$ =gd
//{{AFX_VIRTUAL(CCaptureDlg) " .SJ~`S
public: ,REJt
virtual BOOL PreTranslateMessage(MSG* pMsg); D6CS8
~"
protected: cHcmgW\4
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support I96Ci2)m
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); U`,0]"Qk
//}}AFX_VIRTUAL j>]nK~[ka
// Implementation ]V-W~r=
protected: XGJj3-eW{
HICON m_hIcon; klQC2drS
// Generated message map functions fR)m%m
//{{AFX_MSG(CCaptureDlg) /R~1Zj2&
virtual BOOL OnInitDialog(); Z-8Yd6 4
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); YhbZ'SJ
afx_msg void OnPaint(); 7a#4tqM#
afx_msg HCURSOR OnQueryDragIcon(); 48jVRo
virtual void OnCancel(); T|6jGZS^|W
afx_msg void OnAbout(); !iH-#B-
afx_msg void OnBrowse(); uA,>a>xYI
afx_msg void OnChange(); baJxU:Y=p
//}}AFX_MSG XQ%?
DECLARE_MESSAGE_MAP() 4
SHU
}; \ {qI4=
#endif a\IP12F?
fLDg~;3
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file )'/|)
#include "stdafx.h" lE!a
#include "Capture.h" nt;haeJ
#include "CaptureDlg.h" RletL)
#include <windowsx.h> WuPH'4b 5
#pragma comment(lib,"hook.lib") /EibEd\
#ifdef _DEBUG -od!J\KCy
#define new DEBUG_NEW !FA# K8
#undef THIS_FILE CNQC^d\ h
static char THIS_FILE[] = __FILE__; QU%I43
#endif .Q@S #d
#define IDM_SHELL WM_USER+1 =`*O1a
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); UbEb&9}
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); v^)bhIPe;
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; e%4:)
IV!;
class CAboutDlg : public CDialog &FH2fMLQ
{ } X^|$
public: *<E]E?
CAboutDlg(); /&CmO>^e
// Dialog Data 3uZJ.Fb
//{{AFX_DATA(CAboutDlg) #
altx=6'
enum { IDD = IDD_ABOUTBOX }; 89n:)|rWq
//}}AFX_DATA Ubh{!Y
// ClassWizard generated virtual function overrides 5k6mmiaKk
//{{AFX_VIRTUAL(CAboutDlg) Z|_K6v/c
protected: o Y1';&BO9
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support OkCQ?]
//}}AFX_VIRTUAL Zm"{V iv]
// Implementation XYS'.6k(
protected: 0{[m%eSK'
//{{AFX_MSG(CAboutDlg) <&&SX;
//}}AFX_MSG W%.v.0
DECLARE_MESSAGE_MAP() nSF``pp+
}; {fha`i
ddfs8\
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) 5DXR8mLoaJ
{ by'DQ 00
//{{AFX_DATA_INIT(CAboutDlg) is1' s[
//}}AFX_DATA_INIT 1"pI^Ddt
} 7_.11$E=H
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void CAboutDlg::DoDataExchange(CDataExchange* pDX) &ISb~5
{ 4Sm]>%F':
CDialog::DoDataExchange(pDX); r'dr9"-{
//{{AFX_DATA_MAP(CAboutDlg) %]gn?`O
//}}AFX_DATA_MAP 2$14q$eb
} c&X{dJWD
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BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) MZpK~c1`
//{{AFX_MSG_MAP(CAboutDlg) !@x+q)2
// No message handlers >iOzl wmG
//}}AFX_MSG_MAP eVt$7d?Jw
END_MESSAGE_MAP() =/u%c!
R*oXmuOsYA
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) `%E8-]{uS
: CDialog(CCaptureDlg::IDD, pParent) ]J* ,g,
{ "]m+z)lWd
//{{AFX_DATA_INIT(CCaptureDlg) h)6GaJ=
m_bControl = FALSE; 'zEI;v
m_bAlt = FALSE; }R)=S_j
m_bShift = FALSE; 'Q
=7/dY3I
m_Path = _T("c:\\"); ~`GhS<D
m_Number = _T("0 picture captured."); {^m(,K_
nCount=0; tV_t6x_.
bRegistered=FALSE; ed!:/+3e/
bTray=FALSE; -*~CV:2iq-
//}}AFX_DATA_INIT s-Aw<Q)d
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 &X|<@'933
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
d\H&dkpH
} R g?1-|Tj
QDTBWM%
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) $B#6tk~u
{ =\,uy8HX
CDialog::DoDataExchange(pDX); Z<#hS=eY
//{{AFX_DATA_MAP(CCaptureDlg) L>!8YUz7p$
DDX_Control(pDX, IDC_KEY, m_Key); rrnNn'
DDX_Check(pDX, IDC_CONTROL, m_bControl); 8 F2|
DDX_Check(pDX, IDC_ALT, m_bAlt); Wxkx,q?
DDX_Check(pDX, IDC_SHIFT, m_bShift); 6oinidB[l
DDX_Text(pDX, IDC_PATH, m_Path); !Oj)B1gc6&
DDX_Text(pDX, IDC_NUMBER, m_Number); cO\-
//}}AFX_DATA_MAP LuR,f"%2
} SR^_cpZoi
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BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) g|Y] wd
//{{AFX_MSG_MAP(CCaptureDlg) R7s|`\
ON_WM_SYSCOMMAND() 4"@GNk~e
ON_WM_PAINT() :^'O}2NP
ON_WM_QUERYDRAGICON() 3IR
^
ON_BN_CLICKED(ID_ABOUT, OnAbout) WKpA|
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) `gpQW~*R-;
ON_BN_CLICKED(ID_CHANGE, OnChange) N7%TYs
//}}AFX_MSG_MAP >tG+?Y'{
END_MESSAGE_MAP() `e]6#iJ^
PSRzrv$l
BOOL CCaptureDlg::OnInitDialog() z305{B:Y
{ aup6?'G;
CDialog::OnInitDialog(); T"T;`y@(
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); Olfn
ASSERT(IDM_ABOUTBOX < 0xF000); nRb^<cZf
CMenu* pSysMenu = GetSystemMenu(FALSE); n;8 '`s
if (pSysMenu != NULL) 2b=)6H1
{ Jz:r7w{4eB
CString strAboutMenu; 3Wcy)y>2Ap
strAboutMenu.LoadString(IDS_ABOUTBOX); PF`rWw
if (!strAboutMenu.IsEmpty()) 'r} zY-FM`
{ v8/6wy?
pSysMenu->AppendMenu(MF_SEPARATOR); 8L5!T6+D&
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); 451'>qS
} b@t5`Y-+K
} 4KI [D{
SetIcon(m_hIcon, TRUE); // Set big icon '
)-M\'S$E
SetIcon(m_hIcon, FALSE); // Set small icon C}?0`!Cc%
m_Key.SetCurSel(0); xMs]Hs
RegisterHotkey(); pO~c<d}b
CMenu* pMenu=GetSystemMenu(FALSE); >p])it[q&$
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); B|%tE{F
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); 2X88:
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); S2C]?6cTq
return TRUE; // return TRUE unless you set the focus to a control Aaw(Ed
} _M,lQ~
4'Xgk8)
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) ~vgA7E/XV
{ ogeL[7
if ((nID & 0xFFF0) == IDM_ABOUTBOX) m"-[".-l-
{ hzY[
G:
CAboutDlg dlgAbout; `C_'|d<HA
dlgAbout.DoModal(); 2UP,Tgn..
} P20|RvE
else Ybg-"w
{ u-DK_^v4M
CDialog::OnSysCommand(nID, lParam); MS<SAD>w
} p"`%
} &hV Zx
m@rSz
void CCaptureDlg::OnPaint() M R'o{?{e`
{ T~gW3J
if (IsIconic()) ] c}91
{ #\4 b:dv
CPaintDC dc(this); // device context for painting GZ}/leR
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); b^`AJK
// Center icon in client rectangle $R^AEa7
int cxIcon = GetSystemMetrics(SM_CXICON); RbQ <