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:
*bA+]&dj\
gg-};0P- 一、实现方法
?MC(}dF0 Xsd$*F@< 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
\+k, :8s/ ^/>Wr'w #pragma data_seg("shareddata")
l"J*)P HHOOK hHook =NULL; //钩子句柄
6F`qi:a+ UINT nHookCount =0; //挂接的程序数目
YwL`>? static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
pe()f/Jx( static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
2{ o0@ static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
)N(9pnyZH static int KeyCount =0;
LJGJ|P static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
pI7Ssvi^ #pragma data_seg()
X9fNGM1 Di*]ab 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
|gnAqkW0 n%/i:Whs DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
ImIqD&a-h w[(n> BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
{-@~Q.&}v cKey,UCHAR cMask)
5YiZ-CQ> {
[p ii BOOL bAdded=FALSE;
GQN98Y+h for(int index=0;index<MAX_KEY;index++){
I%@e@Dm,h if(hCallWnd[index]==0){
nr OqH
hCallWnd[index]=hWnd;
&<au/^F HotKey[index]=cKey;
_(C^[ :s HotKeyMask[index]=cMask;
QDS0ejhp bAdded=TRUE;
!?nu? KeyCount++;
g96T*T break;
:peqr!I+K }
pOm@b`S% }
2;G98H return bAdded;
P,i"&9 8 }
S%kS#U${| //删除热键
Sx8l<X BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
&p5&=zV} {
{j?7d; 'j BOOL bRemoved=FALSE;
%>Bko,ET for(int index=0;index<MAX_KEY;index++){
AD]e0_E if(hCallWnd[index]==hWnd){
+?;j&p if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
{h#6z>p"u2 hCallWnd[index]=NULL;
_J,xT HotKey[index]=0;
flG=9~qcGQ HotKeyMask[index]=0;
F>N+<Z bRemoved=TRUE;
t5paYw-b KeyCount--;
nfX12y_SXL break;
2"@Ft()] }
K;x~&G0= }
lop uf/U0 }
B{p4G`$i1 return bRemoved;
yRC3
.[ }
ibJl;sJ 7JI:=yY!>: !z MDP/V DLL中的钩子函数如下:
b^ sb]bZW pI>*u ]x LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
"u;YI=+ {
I!0JG`& BOOL bProcessed=FALSE;
HA!t$[_Ve if(HC_ACTION==nCode)
b3\B8:XFo| {
xP{-19s1] if((lParam&0xc0000000)==0xc0000000){// 有键松开
D`Gt switch(wParam)
^agj4$ {
=EW3&+Lt case VK_MENU:
vX+.e1m MaskBits&=~ALTBIT;
5`~mqqR5 break;
?E<c[*F05 case VK_CONTROL:
V&i2L.{G) MaskBits&=~CTRLBIT;
.+yW%~0 break;
R)+t]} case VK_SHIFT:
R&#tSL MaskBits&=~SHIFTBIT;
/b#q*x-b break;
zDDK default: //judge the key and send message
d&jjWlHgEN break;
BwxnDe G) }
rjUBLY1( for(int index=0;index<MAX_KEY;index++){
V^n0GJNo if(hCallWnd[index]==NULL)
0(gq;H5x' continue;
QU/fT_ORw if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
E-fr}R} {
QHzgy? SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
2n|CD|V$ux bProcessed=TRUE;
DyfsTx }
o G_C?(7> }
QU T"z' }
Ma6W@S else if((lParam&0xc000ffff)==1){ //有键按下
]p]UTCo!' switch(wParam)
ES}. xZ#~ {
p@ygne4
case VK_MENU:
dl0FQNz8@B MaskBits|=ALTBIT;
- $JO8'TP break;
>w.'KR0L case VK_CONTROL:
C>X|VP|C MaskBits|=CTRLBIT;
]^K;goQv break;
VFj(M
j`}G case VK_SHIFT:
/0lC KU!= MaskBits|=SHIFTBIT;
=eBmBn break;
z/ 7$NxJH default: //judge the key and send message
gnLn7? break;
>A}0Ho }
SEM8`lnu for(int index=0;index<MAX_KEY;index++){
C\Vg{&' if(hCallWnd[index]==NULL)
.Evy_o\^ continue;
6~8F!b2 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
eLfvMPVo {
nt ,7u( SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
>(3\kiYS bProcessed=TRUE;
cp6WMHLj }
U
O<:.6" }
g97]Y1g }
2f{T6=SK if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
i sW\MB] for(int index=0;index<MAX_KEY;index++){
a1c1k} if(hCallWnd[index]==NULL)
@dgH50o[ continue;
t-7og;^8k if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
p[v#EyoC SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
{]kaJ{U> //lParam的意义可看MSDN中WM_KEYDOWN部分
U)D[]BVg }
cCiI{ }
>w|*ei:@S }
"A3dvr return CallNextHookEx( hHook, nCode, wParam, lParam );
)TJS4? }
}Qr6l/2 x83a!9 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:
[}2Z/
2.lgT|p BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
GABQUmtH BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
PJLR<9 ]@
M5_%p 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:
vF4]ux&
|L::bx( LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
kV&9`c+ {
aeP[+ I9 if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
u[oUCTY {
h#qN+qt} //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
+dW|^I{H} SaveBmp();
"y;bsZBd" return FALSE;
UMMB0(0D }
60}! LmL …… //其它处理及默认处理
9$1)k;ChP/ }
/ T
c= |/`%3'4H b]Z@^<_E 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
aFj.i8+ @;Opx." 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
?jO 5 9n <l,o&p,>|c 二、编程步骤
.Zmp , w?y6nTg< 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
QM<y`cZ8 .Y*f2A.v 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
aP-<4uGx S*
R,FKg 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
kH948<fk3 9X}I> 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
) R2XU OJO!FH) 5、 添加代码,编译运行程序。
r[txlQI9 {~Tg7<\L 三、程序代码
LnsD Ao9R:|9 ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
CE%_A[a #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
%O[N}_XHEh #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
kv{}C)kt3 #if _MSC_VER > 1000
?>
Dtw#} #pragma once
GqKsK
r2% #endif // _MSC_VER > 1000
G"SBYU #ifndef __AFXWIN_H__
_D,
;MB&7 #error include 'stdafx.h' before including this file for PCH
NjuiD]. #endif
Iah[j,]r #include "resource.h" // main symbols
tt_o$D~kg class CHookApp : public CWinApp
SA"p\}"
{
G$M9=@Ug public:
'lz"2@4{ CHookApp();
kOL'|GgK // Overrides
RFaSwf,5n // ClassWizard generated virtual function overrides
Cby;?F6w //{{AFX_VIRTUAL(CHookApp)
B%s7bS public:
v`PY>c6~ virtual BOOL InitInstance();
*Zk>2<^R virtual int ExitInstance();
K2)!h.W //}}AFX_VIRTUAL
NAC_pM&B //{{AFX_MSG(CHookApp)
`:NaEF?Sj // NOTE - the ClassWizard will add and remove member functions here.
d3Mva,bw< // DO NOT EDIT what you see in these blocks of generated code !
G3i !PwW //}}AFX_MSG
LNYKm~cN DECLARE_MESSAGE_MAP()
=='Td[ };
r,1e 'd: LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
}T2xXbU BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
k?B[>aQn.0 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
)!bUR\ BOOL InitHotkey();
|SZo'
6 BOOL UnInit();
%r\n%$@_ #endif
21X`h3+= eV^d6T$ //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
"r4AY #include "stdafx.h"
D/y bFk #include "hook.h"
[lzN !!B! #include <windowsx.h>
H6*^Ga #ifdef _DEBUG
H`hnEOyLp #define new DEBUG_NEW
xM >W2 #undef THIS_FILE
ZUm?*.g\^ static char THIS_FILE[] = __FILE__;
\>. LW9 #endif
M9\#Aq&\i #define MAX_KEY 100
}|OaL*|u #define CTRLBIT 0x04
'@|_OmcY #define ALTBIT 0x02
1$/MrPT(b #define SHIFTBIT 0x01
$@-P5WcRs #pragma data_seg("shareddata")
zE T^T5>: HHOOK hHook =NULL;
3f.b\4 U UINT nHookCount =0;
t_z>Cl^u static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
*D}0[|O static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
f5*k7fg static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
<*ZJaBwWU~ static int KeyCount =0;
4rT*tW"U static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
S^@S%Eg #pragma data_seg()
!^#jwRpeN HINSTANCE hins;
a]17qMl void VerifyWindow();
q%n6K BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
gN8hJG'0 //{{AFX_MSG_MAP(CHookApp)
Z%zj";C
G // NOTE - the ClassWizard will add and remove mapping macros here.
AN:sQX` // DO NOT EDIT what you see in these blocks of generated code!
^ 2GHe<Y //}}AFX_MSG_MAP
2,2Z`X END_MESSAGE_MAP()
C&LBr| +Mewo CHookApp::CHookApp()
?liK\C2Z< {
lz#GbXn. // TODO: add construction code here,
V]OmfPve // Place all significant initialization in InitInstance
>2$5eI }
C
(n+SY^ J?@DGp+t CHookApp theApp;
EC2+`HJ" LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
EKEjv|_) {
\6n!3FLl BOOL bProcessed=FALSE;
ZX!r1*c
6 if(HC_ACTION==nCode)
6oaazB^L {
TNCgaTJ{h if((lParam&0xc0000000)==0xc0000000){// Key up
d<!3`qe switch(wParam)
3`d}~v{ {
ptatzp]c# case VK_MENU:
5Wyz=+?m| MaskBits&=~ALTBIT;
6vuq1 break;
lt^\ case VK_CONTROL:
LZJA4?C MaskBits&=~CTRLBIT;
N7'OPTKt& break;
Ds#/ case VK_SHIFT:
+d+@u)6 MaskBits&=~SHIFTBIT;
Wt)Drv{@ { break;
;AR{@Fu. default: //judge the key and send message
#/"8F O%~p break;
WV3|?,y]qm }
F|Mi{5G% for(int index=0;index<MAX_KEY;index++){
?]fF3 SJk if(hCallWnd[index]==NULL)
2XTPBZNe continue;
qPB8O1fyU if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
tO7v4 {
LTNj| u SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
!TZhQiorC bProcessed=TRUE;
s+Fi @lg, }
S(S# }
3G.5724, }
:tIC~GG]_) else if((lParam&0xc000ffff)==1){ //Key down
IDkWGh switch(wParam)
*n]7 {
\k;`}3uO case VK_MENU:
s]m o$ _na MaskBits|=ALTBIT;
F:*W5xX break;
sK{l 9 case VK_CONTROL:
+iRq8aS_
MaskBits|=CTRLBIT;
.Ha'p. break;
A+y case VK_SHIFT:
4S~o-`&W MaskBits|=SHIFTBIT;
F'g Vzf break;
]\/tVn.' default: //judge the key and send message
]| N3eu break;
^~{$wVGa }
:[ k4Z]t8 for(int index=0;index<MAX_KEY;index++)
+k
dT(7 {
u@ jX+\ if(hCallWnd[index]==NULL)
^TMJ8`e continue;
`:P
if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
hN['7:bQ {
3qY K_M^[ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
V"p!Bf bProcessed=TRUE;
1;Pv0&[q/ }
QO"oEgB`+Z }
qB)"qFa
}
GN KF&M if(!bProcessed){
uB!kM for(int index=0;index<MAX_KEY;index++){
'n<iU st if(hCallWnd[index]==NULL)
nz9DLAt continue;
y5Tlpi`g if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
)p!7#v/@f SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
r]OK$Ql }
3 ?Y| }
J_>w 3uY }
{Fzs@,|W. return CallNextHookEx( hHook, nCode, wParam, lParam );
WL` 9~S }
\*,=S52 }g$(+1g BOOL InitHotkey()
Vy_2 . {
JG9` h# if(hHook!=NULL){
Wrr cx( nHookCount++;
:4^\3~i1X return TRUE;
P2nft2/eu? }
piU/& else
c/_+o;Bc hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
_+
.\@{c if(hHook!=NULL)
o)OUWGjb/K nHookCount++;
qlA7tU2p& return (hHook!=NULL);
w8g,a]p }
,f1q)Qf BOOL UnInit()
>~K
qg~ {
@ym/27cRE if(nHookCount>1){
jy]JiQB nHookCount--;
VUI|.76g return TRUE;
tzy'G"P| }
)xb|3&+W BOOL unhooked = UnhookWindowsHookEx(hHook);
%,hV[[ @. if(unhooked==TRUE){
aR,}W\6M nHookCount=0;
}K8/-d6 hHook=NULL;
!QDQ_ }
b)9'bJRvU return unhooked;
S(\9T1DVe }
W>q HFoKa z,{<Nm7&F BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Q5%#^ZdsTd {
c5|:,wkx BOOL bAdded=FALSE;
0\2\*I}? for(int index=0;index<MAX_KEY;index++){
cUDoN`fSl, if(hCallWnd[index]==0){
V/LQ<Yke hCallWnd[index]=hWnd;
QdLYCR4f HotKey[index]=cKey;
VXR]"W= HotKeyMask[index]=cMask;
*xp\4;B
bAdded=TRUE;
}E`dZW*!! KeyCount++;
G;f/Tch break;
' oFxR003 }
d|T!v }
gocrjjAHk return bAdded;
tK
k#LWB }
?BhMjsy. 5=e@d:Sz BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
WcC?8X2 {
JWA@+u*k BOOL bRemoved=FALSE;
`# sTmC) for(int index=0;index<MAX_KEY;index++){
[frq
'c if(hCallWnd[index]==hWnd){
",{ibh)g$` if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
o[E_Ge}g8 hCallWnd[index]=NULL;
<(vCiH9~P HotKey[index]=0;
Q:ezifQ HotKeyMask[index]=0;
1xv8gC:6 bRemoved=TRUE;
`GXkF:f= KeyCount--;
?YeWH
WM break;
%%cHoprDa }
Jk0r&t7 }
D5~n/.B" }
/x{s5P3 return bRemoved;
KRjV}\} }
4e;QiTj J<Pw+6B~ void VerifyWindow()
L. ]$6Q0 {
#$3yz'"QF for(int i=0;i<MAX_KEY;i++){
G<M:Ak+~ if(hCallWnd
!=NULL){ s&GJW@
|
if(!IsWindow(hCallWnd)){ udeoW-_
hCallWnd=NULL; i|1^+;
HotKey=0;
xG;-bJu
HotKeyMask=0; D/h/Y) Y
KeyCount--; Jjl`_X$CB
} )Fb>8<%
} 4[r/}/iGo
} ~{}#)gGU
} Y<0 4RV
xnE|Umz
BOOL CHookApp::InitInstance() wp7!>%s{
{ xUfbW;;]UU
AFX_MANAGE_STATE(AfxGetStaticModuleState()); V]EtwA
hins=AfxGetInstanceHandle(); 5s?Hxn
InitHotkey(); 42L
@w
return CWinApp::InitInstance(); eSW{Cb
} $`Ix:gi
fL]Pztsk+
int CHookApp::ExitInstance() l|5fE1K9U
{ I5h[%T
VerifyWindow(); [%&ZPJT%i
UnInit(); % >;#9"O4
return CWinApp::ExitInstance(); XR!us/U`a
} Zf5`XslA.
2c?qV
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file .G o{1[
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) UJs$q\#RO
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ qF iLh9=D
#if _MSC_VER > 1000 <LRey%{q
#pragma once 4`Ic&c/
#endif // _MSC_VER > 1000 Mc!Xf[
)#F]G$51r
class CCaptureDlg : public CDialog q64k7<C,
{ 16SOIT
// Construction /s];{m|>
public: -R>}u'EG>
BOOL bTray; X\}Y
BOOL bRegistered; Bvt@X
BOOL RegisterHotkey(); ~SvC[+t+U
UCHAR cKey; 5Zw1y@k(
UCHAR cMask; Y
wkyq>Rv
void DeleteIcon(); p\{-t84n
void AddIcon(); yPw'] "
UINT nCount; :iR \%
void SaveBmp(); ]59i>
CCaptureDlg(CWnd* pParent = NULL); // standard constructor 0j(M*
sl
// Dialog Data hp"L8w
//{{AFX_DATA(CCaptureDlg) _ pO `
enum { IDD = IDD_CAPTURE_DIALOG }; H'F6$ypoS
CComboBox m_Key; >%E([:$A
BOOL m_bControl;
b3YO!cJ
BOOL m_bAlt; |y<),j6
BOOL m_bShift; 5d@t7[]
CString m_Path; ( )sTb>L
CString m_Number; JY!l!xH(6
//}}AFX_DATA LI)!4(WH
// ClassWizard generated virtual function overrides ,
*qCf@$I
//{{AFX_VIRTUAL(CCaptureDlg) =uDgzdDyE
public: <}6{{&mT4
virtual BOOL PreTranslateMessage(MSG* pMsg); Jgu94.;5
protected: _tr<}PnZ
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support U}SXJH&&E
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); a(]`F(L
//}}AFX_VIRTUAL L !4t[hhe=
// Implementation Q!,<@b)
protected: $;G{Pyp
HICON m_hIcon; /=uMk]h
// Generated message map functions Vx_rc%'
//{{AFX_MSG(CCaptureDlg) f.GETw
virtual BOOL OnInitDialog(); a{Esw`
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); d3^OEwe
afx_msg void OnPaint(); rw)kAe31
afx_msg HCURSOR OnQueryDragIcon(); 0ult7s}
virtual void OnCancel(); /J)l /oI
afx_msg void OnAbout(); |
nJZie8m
afx_msg void OnBrowse(); fA48(0p
afx_msg void OnChange(); fri0XxF
//}}AFX_MSG 4lKVY<
DECLARE_MESSAGE_MAP() vILy>QS)
}; x_|F|9
#endif ":3 VJ(eY
r3rxC&
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file drwgjLC+
#include "stdafx.h" 3\;27&~gV
#include "Capture.h" W(fr<<hL
#include "CaptureDlg.h" l8K5k:XCU3
#include <windowsx.h> (J"T]-[
#pragma comment(lib,"hook.lib") I|$
RJkD
#ifdef _DEBUG }B7K@Wu#
#define new DEBUG_NEW |_u8mV
#undef THIS_FILE \8OO)98'
static char THIS_FILE[] = __FILE__; -)!>M>=s
#endif Ch
)dLPz@
#define IDM_SHELL WM_USER+1 pS 4&w8s
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); +MK6zf
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); c^8o~K>w84
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; +*oS((0s
class CAboutDlg : public CDialog d+iR/Ssc
{ /9yaW7w
public: S'~o,`xy
CAboutDlg(); <*H^(0
// Dialog Data acd:r%y
//{{AFX_DATA(CAboutDlg) 1r r@
enum { IDD = IDD_ABOUTBOX }; mmw^{MK!
//}}AFX_DATA Q
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// ClassWizard generated virtual function overrides +&KQ28r
//{{AFX_VIRTUAL(CAboutDlg) bshGS8O
protected: o
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virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support g=}v>[k E
//}}AFX_VIRTUAL J` {6l
// Implementation 7:=5"ScV
protected: O$`UCq
//{{AFX_MSG(CAboutDlg) x}$e}8|8YL
//}}AFX_MSG \F, DA"K_
DECLARE_MESSAGE_MAP() }W)=@t
}; Q Z8QQ`*S
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CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) f]~c)P
Cs
{ }wSi~^*
//{{AFX_DATA_INIT(CAboutDlg) h!&sNzX
//}}AFX_DATA_INIT PU9`<3z5
} `P+(&taT
0JRD
void CAboutDlg::DoDataExchange(CDataExchange* pDX) T)7TyE|"2g
{ 5H,G-
CDialog::DoDataExchange(pDX); M
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//{{AFX_DATA_MAP(CAboutDlg) >zY \Llv
//}}AFX_DATA_MAP F)$K
} SN+S6
Jeqxspn
T
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) -jg (G GJ
//{{AFX_MSG_MAP(CAboutDlg) /7$mxtB5%L
// No message handlers j&6 jRX
//}}AFX_MSG_MAP &;H{cv`
END_MESSAGE_MAP() Iy
{U'a!
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CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) dTEJ=d40
: CDialog(CCaptureDlg::IDD, pParent) jj\ [7 O*
{ {gf>*
//{{AFX_DATA_INIT(CCaptureDlg) e{G_GycH
m_bControl = FALSE; PX".Km p.
m_bAlt = FALSE; ApPy]IdwX
m_bShift = FALSE; go)p%}s
m_Path = _T("c:\\"); U6 82Th
m_Number = _T("0 picture captured."); ?SY<~i<K-
nCount=0; 71B3a
bRegistered=FALSE; YTY%#"
bTray=FALSE; 4YbC(f
//}}AFX_DATA_INIT e/e0d<(1
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 dhRJg"vrQ
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); 7INk_2
} >3;^l/2c
](r
^.k,R
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) OsW"CF2
{ TW`mxj_J2
CDialog::DoDataExchange(pDX); g jG2
//{{AFX_DATA_MAP(CCaptureDlg) mp`PE=
DDX_Control(pDX, IDC_KEY, m_Key); coQ[@vu
DDX_Check(pDX, IDC_CONTROL, m_bControl); J;~|ph
DDX_Check(pDX, IDC_ALT, m_bAlt); (b/d0HCND
DDX_Check(pDX, IDC_SHIFT, m_bShift); MM#cLw
DDX_Text(pDX, IDC_PATH, m_Path); ` DCU>bt&R
DDX_Text(pDX, IDC_NUMBER, m_Number); 0V11#
//}}AFX_DATA_MAP >?XbU}
} % mn />
rb_Z5T
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) :q2YBa
//{{AFX_MSG_MAP(CCaptureDlg) K, (65>86;
ON_WM_SYSCOMMAND() 993d/z|DX
ON_WM_PAINT() Y4~vC[$x'
ON_WM_QUERYDRAGICON() 3\!F\tqD \
ON_BN_CLICKED(ID_ABOUT, OnAbout) oo'w-\2]p
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) }6~)bLzI}
ON_BN_CLICKED(ID_CHANGE, OnChange) M1=_^f=&.
//}}AFX_MSG_MAP |paP<$
END_MESSAGE_MAP() *M!kA65'
`ENP=kL(+
BOOL CCaptureDlg::OnInitDialog() ./maY1>T
{ QJ4AL3
^6
CDialog::OnInitDialog(); HY;oy(
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); 6c\DJD
ASSERT(IDM_ABOUTBOX < 0xF000); :zL 393(
CMenu* pSysMenu = GetSystemMenu(FALSE); hjY0w
if (pSysMenu != NULL) 7u%a/ <
{ IlHY%8F{
CString strAboutMenu; kJ8vKcc
strAboutMenu.LoadString(IDS_ABOUTBOX); yuNfhK/#r
if (!strAboutMenu.IsEmpty()) 0M!0JJy#*
{ OAok
pSysMenu->AppendMenu(MF_SEPARATOR); .:0M+Jr"
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); F/<qE!(
} GAU!_M5 N
} yKDZ+3xK]
SetIcon(m_hIcon, TRUE); // Set big icon sMi{"`37
SetIcon(m_hIcon, FALSE); // Set small icon 8$ DwpJ
m_Key.SetCurSel(0); ce5nG0@#
RegisterHotkey(); oa0X5}D
CMenu* pMenu=GetSystemMenu(FALSE); ,RK3eQ
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); ?vu|o'$T,
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); ZO7bSxAN-
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); {'IFWD. 5
return TRUE; // return TRUE unless you set the focus to a control {% F`%_{"
} npj/7nZj
##~!M(c
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) fNxw&ke8&
{ yisLypM*
if ((nID & 0xFFF0) == IDM_ABOUTBOX) w`#fH
{ nYov>x]
CAboutDlg dlgAbout; _W9&J&l0so
dlgAbout.DoModal(); rbh[j@s@
} zUQe0Gc.b^
else ]C)|+`XE@
{ A[9NP-~
CDialog::OnSysCommand(nID, lParam); a;&}zcc*
} #{>uC&jD
} A9n41,h
7)PJ:4IqS
void CCaptureDlg::OnPaint() no3Z\@%
{ *:#Z+7x
]
if (IsIconic()) Qu}N:P9l?X
{ %]GV+!3S
CPaintDC dc(this); // device context for painting )OUU]MUH
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); Y`]rj-8f0B
// Center icon in client rectangle c(:Oyba
int cxIcon = GetSystemMetrics(SM_CXICON); q2Rf@nt
int cyIcon = GetSystemMetrics(SM_CYICON); $`Rxn*}V4#
CRect rect; #7C6yXb%
GetClientRect(&rect); V2QW\2@$
int x = (rect.Width() - cxIcon + 1) / 2; JX&~y.F
int y = (rect.Height() - cyIcon + 1) / 2; ;Xh5oB\)W
// Draw the icon Oo/8Y
E@
dc.DrawIcon(x, y, m_hIcon); "3ug}k
} =AzOnXW:S
else 5Jd`
^U
{ ;*`_#Rn#
CDialog::OnPaint(); -R74/GBg
} &NP6%}bR`
} )]}$
t[ q3{-
HCURSOR CCaptureDlg::OnQueryDragIcon() ~,G]glu8
{ ?1$\pq^
return (HCURSOR) m_hIcon; HSql)iT
} zi_[V@Es/
Cn/q=
void CCaptureDlg::OnCancel() 7yUvL8p-
{ fr]Hc+7
if(bTray) UhBz<>i;!
DeleteIcon(); 'v+96b/;
CDialog::OnCancel(); /=-h:0{M
} 8'%+G
"Y(%oJS]D
void CCaptureDlg::OnAbout() m>O2t-
{ ZZwBOGVU
CAboutDlg dlg; K]MzP|T,
dlg.DoModal(); 5 Af?Yxv
} 8ur_/h7
S}O5l}E
void CCaptureDlg::OnBrowse() 0O^U{#*$I
{ P8u"T!G
CString str; ?qIGQ/af&
BROWSEINFO bi; H<{*ub4'L*
char name[MAX_PATH]; @@; 1%z
ZeroMemory(&bi,sizeof(BROWSEINFO)); S~} +ypV
bi.hwndOwner=GetSafeHwnd();
Jb6&
bi.pszDisplayName=name; qWkx:-g]
bi.lpszTitle="Select folder"; W -3w7^
bi.ulFlags=BIF_RETURNONLYFSDIRS; :g/{(#E@Z
LPITEMIDLIST idl=SHBrowseForFolder(&bi); {YfYIt=.
if(idl==NULL) DSTx#*
return; !Am
=v=>
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); 5%#i79z&B
str.ReleaseBuffer(); -/1d&
m_Path=str; @}Pw0vC
if(str.GetAt(str.GetLength()-1)!='\\') s?HsUD$b
m_Path+="\\"; r@;$V_I
UpdateData(FALSE); '2j~WUEmg
} sgR
9d
"hfw9Qm
void CCaptureDlg::SaveBmp() :
qr}M
{ @!Y.935/0
CDC dc; sAf9rZt*'
dc.CreateDC("DISPLAY",NULL,NULL,NULL); Us*Vn
CBitmap bm; DU(X,hDBF
int Width=GetSystemMetrics(SM_CXSCREEN); Scf.4~H 0
int Height=GetSystemMetrics(SM_CYSCREEN); &