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:
ZH%[wQ~4
i
c]f o 一、实现方法
b}$m!c:<8
Te>7I 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
yg2~qa:dZ y( MF_'l #pragma data_seg("shareddata")
CFZ=!s)B HHOOK hHook =NULL; //钩子句柄
N_VAdNJ^: UINT nHookCount =0; //挂接的程序数目
PSHs<Z47 static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
A}\Rms2 static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
!@/?pXt| static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
hP,1;`[1 static int KeyCount =0;
,h]N*Z-I" static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
?k_=?m #pragma data_seg()
_'AIXez7q !*|CIxk( 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
y::;e#. ORx,n7- DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
=QyO$:t IFPywL{K BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
~ilbW|s?=k cKey,UCHAR cMask)
(p14{ {
N"t,6tH BOOL bAdded=FALSE;
.(S,dG0P for(int index=0;index<MAX_KEY;index++){
3Uag[ms if(hCallWnd[index]==0){
6XQ)Q)
hCallWnd[index]=hWnd;
3 XfXMVm HotKey[index]=cKey;
}C#YR(] HotKeyMask[index]=cMask;
mk4%]t" bAdded=TRUE;
jd2Fh):q KeyCount++;
4kg9R^0 break;
jgbw'BBu }
rP`\<}a. }
u>S&?X'a return bAdded;
]NAPvw#p }
O~,^x$ve //删除热键
']vX BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
\Y!Z3CK {
$LRFG( BOOL bRemoved=FALSE;
:`
~b&Oz) for(int index=0;index<MAX_KEY;index++){
;5Sr<W\:; if(hCallWnd[index]==hWnd){
5Ij_$a if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
*=/XlSWF hCallWnd[index]=NULL;
V7[qf " HotKey[index]=0;
(Z,,H1L HotKeyMask[index]=0;
j9u-C/Q\r bRemoved=TRUE;
;v0sM*x%V KeyCount--;
LOida# R break;
"W+4`A(/l }
.X2mEnh }
c>UITM=!I
}
L8j,?u#
return bRemoved;
C}1(@$ }
iD(K*[;lc #Y18z5vo @ ~sp:l DLL中的钩子函数如下:
6PMu;# y
ph LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
fRa1m?%s {
p[uwG31IL` BOOL bProcessed=FALSE;
J)fS2Ni+ if(HC_ACTION==nCode)
D9LwYftZ {
<m(nZ'Zqz2 if((lParam&0xc0000000)==0xc0000000){// 有键松开
r\3In-(AT switch(wParam)
huTJ
a2 {
<aHK{*'3 case VK_MENU:
E>g'! MaskBits&=~ALTBIT;
zWY6D4 break;
D!mhR?t case VK_CONTROL:
4_"ZSVq]# MaskBits&=~CTRLBIT;
`\Npu break;
|M
K-~ep case VK_SHIFT:
)@Zel.XD MaskBits&=~SHIFTBIT;
r\NnWS J break;
J5o"JRJ" default: //judge the key and send message
Ti)n(G9$ break;
0"QE,pLe4 }
7CIje=u.q for(int index=0;index<MAX_KEY;index++){
g]ihwm~ if(hCallWnd[index]==NULL)
,5\n%J: continue;
gEe}xI if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
8@qahEgQ {
[MEa@D<7N SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
(~OwO_|3 bProcessed=TRUE;
d)G-K+&B }
U=yD! }
uo{QF5z] }
]t=># else if((lParam&0xc000ffff)==1){ //有键按下
u3ZG;ykM switch(wParam)
Fu`g)#Z {
'RA[_Z case VK_MENU:
=0:hrg+Zgx MaskBits|=ALTBIT;
~xJD3Qf break;
E+2y-B)E case VK_CONTROL:
Z~nl{P# MaskBits|=CTRLBIT;
?eO|s5r break;
8r|LFuI case VK_SHIFT:
1Jd: %+T MaskBits|=SHIFTBIT;
08`
@u4 break;
S;c=6@" default: //judge the key and send message
{l6]O break;
)b7mzDp( }
dG rA18 for(int index=0;index<MAX_KEY;index++){
p>zE/Pw~ if(hCallWnd[index]==NULL)
g<C})84y3 continue;
B 3h<K} if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
m,KY_1%M {
;PHnv5 x@f SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
M`<D Z<:< bProcessed=TRUE;
-?(RoWv@X& }
a@a1/3 }
/0c&!OP }
Kq?7#,_ if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
4J_%quxO for(int index=0;index<MAX_KEY;index++){
1)R)+`y if(hCallWnd[index]==NULL)
z%KChU continue;
Qh[t##I/ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
H xlw1(zS SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
1,QRfckks //lParam的意义可看MSDN中WM_KEYDOWN部分
4Klfnki }
QXz!1o+" }
@bx2= }
m\>x_:sE return CallNextHookEx( hHook, nCode, wParam, lParam );
x -!FS h8q }
vuZ<'?Nm L~$RF {$ 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:
oN$ZZk
R G](K2= BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
mOB\ `&h5 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
tWiV0PTI bDo'hDmW 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
CQ`(,F3( J53;w:O LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
Jc)1} {
XJ\q!{;h if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
5Z[D(z {
r &[~/m8zl //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
EyeLC6u SaveBmp();
HA%ye"(y8 return FALSE;
Esjv^* v9- }
M($},xAvDU …… //其它处理及默认处理
>
95Cs`>d }
i/~J0qQ P Cf|^X#B A-io-P7qyj 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。
NIfc/% #dft-23 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。
=<05PB _:L*{=N 二、编程步骤
.T|NB8 rS xD=D *W 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";
rYJ))@ JdHc'WtS!| 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
,gvX ~k !D3}5A1, 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!k6qTz) }D^Gt) 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;
#+;=ijyF taQ[>x7b 5、 添加代码,编译运行程序。
T_uuFL 7|-xM>L$A 三、程序代码
$ZRN#x@ zEW:Xe) ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
fq|2E&&v #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
=;H'~ #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
%\cC]<> #if _MSC_VER > 1000
CnH
R&` #pragma once
o
FLrSmY)E #endif // _MSC_VER > 1000
1aE/_ #ifndef __AFXWIN_H__
Lvq]SzOw #error include 'stdafx.h' before including this file for PCH
FQFENq''B #endif
q,DX{: #include "resource.h" // main symbols
dX*>?a class CHookApp : public CWinApp
LXLDu2/@ {
7gwZ9Fob public:
`<zb CHookApp();
.F2nF8 // Overrides
9pcf jx.. // ClassWizard generated virtual function overrides
d_+8=nh3 //{{AFX_VIRTUAL(CHookApp)
C]fTV{ public:
)^N8L< virtual BOOL InitInstance();
VK;x6*Y virtual int ExitInstance();
0UJ`<Bfd //}}AFX_VIRTUAL
[,^dM:E/ //{{AFX_MSG(CHookApp)
L{f>;[FR // NOTE - the ClassWizard will add and remove member functions here.
$k ma#7 // DO NOT EDIT what you see in these blocks of generated code !
7]%il[ //}}AFX_MSG
(;&?B.<\: DECLARE_MESSAGE_MAP()
R3n&o%$* };
Y:,R7EO{! LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
}i&dZTBGW BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
dSVu_*y BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
a*j <TR BOOL InitHotkey();
j9}0jC2Tb BOOL UnInit();
V|\A? #endif
dV{Hn {( DA$Q- //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
^Nw]'e3 #include "stdafx.h"
e@=[+iJc #include "hook.h"
7omGg~!k( #include <windowsx.h>
//lZmyP? #ifdef _DEBUG
Iv72;ZCh?6 #define new DEBUG_NEW
41o!2(e$ #undef THIS_FILE
,6O9#1A&i static char THIS_FILE[] = __FILE__;
fVUBCu #endif
k6'# #define MAX_KEY 100
1fW4=pF-K #define CTRLBIT 0x04
uV_)JZW,L #define ALTBIT 0x02
i*R:WTw# #define SHIFTBIT 0x01
m->%8{L #pragma data_seg("shareddata")
id+m[']+ HHOOK hHook =NULL;
yH%+cmp7 UINT nHookCount =0;
lE)rRG+JLW static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
{(}w4.! static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
=t$mbI static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
LGRO En<*d static int KeyCount =0;
P0 ltN static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
)O@^H #pragma data_seg()
Y-q@~vZ] HINSTANCE hins;
5
?~-Vv31s void VerifyWindow();
=6<w'> BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
;b?+:L //{{AFX_MSG_MAP(CHookApp)
&8+6!TN7 // NOTE - the ClassWizard will add and remove mapping macros here.
V-;nj,.mY // DO NOT EDIT what you see in these blocks of generated code!
IIQ3|eZ //}}AFX_MSG_MAP
v*~%x END_MESSAGE_MAP()
fslk7RlSKg NzAtdcwR CHookApp::CHookApp()
$Kz\
h#} {
NB5L{Gf6- // TODO: add construction code here,
OF<n T // Place all significant initialization in InitInstance
v?D
kDnta }
W(a'^
#xe ZqbM%(=z(` CHookApp theApp;
1mn$Rh&dO LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
`s83rhs`! {
d =(Yl r BOOL bProcessed=FALSE;
$^=jPk]+ if(HC_ACTION==nCode)
RA/ =w& {
8U<.16+5Q if((lParam&0xc0000000)==0xc0000000){// Key up
J)8pqa switch(wParam)
Ag#5.,B- {
/-{O\7-D case VK_MENU:
N(-%"#M$ MaskBits&=~ALTBIT;
vQYfoam; break;
_`@Xy!Ye case VK_CONTROL:
A,lw-(.z4Z MaskBits&=~CTRLBIT;
ss`q{ARb
break;
|:=b9kv case VK_SHIFT:
2x`xyR_Q.R MaskBits&=~SHIFTBIT;
*K jVPs break;
pmW6~%}* default: //judge the key and send message
_X%6 +0M
break;
I0l.KiBm }
xeYySM= for(int index=0;index<MAX_KEY;index++){
I"Q9W|J_& if(hCallWnd[index]==NULL)
;/";d]j continue;
/cL9?k;o if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
FJjF*2 . {
h`EH~ W0:z SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
;;y@z[ > bProcessed=TRUE;
0^!,[oh6* }
^mgI%_?1 }
U.pr} hq }
@0UwI%. else if((lParam&0xc000ffff)==1){ //Key down
2>MP:yY;K switch(wParam)
Eo {1y {
$: 4mOl case VK_MENU:
W-C0YU1 MaskBits|=ALTBIT;
C`)^~C_]`3 break;
N
t>HztXd case VK_CONTROL:
ZaRr2Z:! MaskBits|=CTRLBIT;
o
>Rw}R break;
C*{15!d:G case VK_SHIFT:
##`;Eh0a MaskBits|=SHIFTBIT;
U/3e,`c break;
a(x.{}uG, default: //judge the key and send message
}uvKE|umj break;
XU;{28P }
4lY&=_K[) for(int index=0;index<MAX_KEY;index++)
@}&,W
N% {
uD ?I>7 if(hCallWnd[index]==NULL)
p9&gEW continue;
^b"x|8 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
OP|.I._I {
vbWJhjK0h SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
o]|oAN9 bProcessed=TRUE;
f
$.\o }
Gh$y#0qr }
[L*[j.r7[ }
%qNj{<& if(!bProcessed){
5&n988gC8 for(int index=0;index<MAX_KEY;index++){
zfP[1 if(hCallWnd[index]==NULL)
4uO
@`0:x continue;
2[8fFo> if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
de=5=>P7 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
U5On-T5 }
=0PNHO\gl }
^B<PD] }
[.#p return CallNextHookEx( hHook, nCode, wParam, lParam );
f
gK2.;> }
bG5^h T.R>xd`9
" BOOL InitHotkey()
EBj,pk5M {
d739UhKC if(hHook!=NULL){
r|\5'ZMx nHookCount++;
%67G]?EXB
return TRUE;
?b*/ddIs }
EaM"=g else
1*! c
X hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
dr,B\.|jC if(hHook!=NULL)
@wYQLZ nHookCount++;
PEX26== return (hHook!=NULL);
}{#;;5KrB }
ONr?.MJ6j BOOL UnInit()
Z9J =vzsHE {
~zE 1' if(nHookCount>1){
!~lVv&YO nHookCount--;
3P+4S|@q(4 return TRUE;
nJldz; }
z^ aCQ3E BOOL unhooked = UnhookWindowsHookEx(hHook);
Y91
e1PsV if(unhooked==TRUE){
`zElBD nHookCount=0;
@b::6n/u hHook=NULL;
OQytgXED }
PSP1>-7)w return unhooked;
fB;&n }
5(iSOsb IKMsY5i BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
AND7jEn {
K)Df}fVOc BOOL bAdded=FALSE;
CU#L *kz for(int index=0;index<MAX_KEY;index++){
eHVdZ'%x if(hCallWnd[index]==0){
zK'
_e&* hCallWnd[index]=hWnd;
3i]"#wK HotKey[index]=cKey;
$n=W2WJ6f HotKeyMask[index]=cMask;
U,%s; bAdded=TRUE;
Q-!
i$#- KeyCount++;
RlI
W&y break;
e/]O<, * }
dJdD"xj }
D_l/Gxdpr return bAdded;
LCo1{wi }
Ht`<XbQ> /32Ta BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
'|YtNhWZ? {
K:>NGGY8r BOOL bRemoved=FALSE;
bGGeg%7 for(int index=0;index<MAX_KEY;index++){
4B:\ if(hCallWnd[index]==hWnd){
&57qjA,8< if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
sowbg<D hCallWnd[index]=NULL;
`!Ua ScM HotKey[index]=0;
tIi!*u
HotKeyMask[index]=0;
U7nsMD bRemoved=TRUE;
*ajFZI KeyCount--;
!7:EE,W~ break;
]iz_w`I\ }
q=P
f^Xp }
"?oo\op }
&%|xc{i return bRemoved;
~u_K&X }
17V\2=Io c^ixdk void VerifyWindow()
&_Cxv8 {
x><zGXvvp| for(int i=0;i<MAX_KEY;i++){
bajC-5R1k if(hCallWnd
!=NULL){ uuI3NAi~
if(!IsWindow(hCallWnd)){ BlkSWW/
hCallWnd=NULL; .K $p`WQ{
HotKey=0; uHfhRc9
HotKeyMask=0; lSZ"y
Q+
KeyCount--; a6;gBoV
} 4u3 \xR?w6
} 2^zg0!z
} 7^kH8qJ)
} z{Hz;m:*_
$?H]S]#|}.
BOOL CHookApp::InitInstance() sl~b\j
{ =1gDjF9|
AFX_MANAGE_STATE(AfxGetStaticModuleState()); ^K7q<X ,
hins=AfxGetInstanceHandle(); keT?,YI
InitHotkey(); /- DKV~
return CWinApp::InitInstance(); DWF
>b
} ::p-9F
&tlR~?$e*
int CHookApp::ExitInstance() ,DE(5iDS
{ 'b LP~
VerifyWindow(); er(8}]X8Q
UnInit(); Ix( 6
return CWinApp::ExitInstance(); i
FC"!23f
} =^BqWC2~
o8w-$
Qb
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file Nawp t%
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) am]3
"V>
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ Hm.X}HO0L
#if _MSC_VER > 1000 R!sNg
#pragma once n
(OjjRm
#endif // _MSC_VER > 1000 y.jS{r".
&(lMm )
class CCaptureDlg : public CDialog 11i"nR|
{ 8&?^XcJ*x
// Construction Sv.KI{;v$
public: IJ hxE
BOOL bTray; y' 2<qj
BOOL bRegistered; V%i<;C
BOOL RegisterHotkey(); %0NL Rfp
UCHAR cKey; b OW}"
UCHAR cMask; uEBQoP2
void DeleteIcon(); YavfjS:2
void AddIcon(); ri_P;#lz
UINT nCount; +nU' ,E
void SaveBmp(); Xfj)gPt}
CCaptureDlg(CWnd* pParent = NULL); // standard constructor kBrvl^D{5
// Dialog Data `2pO5B50
//{{AFX_DATA(CCaptureDlg) jeY4yM
enum { IDD = IDD_CAPTURE_DIALOG }; J09*v)L
CComboBox m_Key; w(aUEWYL
BOOL m_bControl; 4+)Zk$E
BOOL m_bAlt; 72`/d`
BOOL m_bShift; ymHKcQ
CString m_Path; bAUHUPe
CString m_Number; oz Vpfs
//}}AFX_DATA ZQ@3P7T
// ClassWizard generated virtual function overrides 7TP$
//{{AFX_VIRTUAL(CCaptureDlg) #g,H("Qy({
public: AzZi{Q ?
virtual BOOL PreTranslateMessage(MSG* pMsg); pMOD\J:l,
protected: N[>:@h
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support "_t4F4z
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); _\p`4-.V
//}}AFX_VIRTUAL /#29Y^Z)=
// Implementation
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protected: [70Y,,w
HICON m_hIcon; wbBE@RU>!
// Generated message map functions IT,"8s
//{{AFX_MSG(CCaptureDlg) QDP-E[
virtual BOOL OnInitDialog(); SzRL}}I
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); 2%bhW,?I
afx_msg void OnPaint(); :g&>D#{
afx_msg HCURSOR OnQueryDragIcon(); '=$TyiU
virtual void OnCancel(); MdLj,1_T
afx_msg void OnAbout(); R j-jAH
afx_msg void OnBrowse(); cnbo+U
afx_msg void OnChange(); HTw#U2A;+
//}}AFX_MSG 'wa g |-
DECLARE_MESSAGE_MAP() 6ezcS}:+
}; ~'(9?81d
#endif sbzeY1
Yi[4DfA
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file .a {QA
#include "stdafx.h" H%FM
#include "Capture.h" ^Wf
S\M`
#include "CaptureDlg.h" g/x_m.
#include <windowsx.h> B.El a
#pragma comment(lib,"hook.lib") FZeP<Ban
#ifdef _DEBUG U8E0~[y'
#define new DEBUG_NEW *jGPGnSo
#undef THIS_FILE jn~!V!++
static char THIS_FILE[] = __FILE__; %t q&
#endif Kf|0*c
#define IDM_SHELL WM_USER+1 ZH% we
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); D$ ej+s7
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); hRk,vB]
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; _<XgC\4O|
class CAboutDlg : public CDialog k/U>N|5
{ R !9qQn?
public: 3zbXAR*
CAboutDlg(); -W9gH
// Dialog Data 9g96 d-
//{{AFX_DATA(CAboutDlg) ci;&CHa
enum { IDD = IDD_ABOUTBOX }; -7&?@M,u
//}}AFX_DATA Ny]lvgu9X
// ClassWizard generated virtual function overrides r-*l1([eW
//{{AFX_VIRTUAL(CAboutDlg) gUspGsfr
protected: N_0pO<<cs
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support ::ri3Tu
//}}AFX_VIRTUAL O6/xPeak
// Implementation c+H)ed>
protected: wBLsz/
//{{AFX_MSG(CAboutDlg) ZH!;z-R
//}}AFX_MSG }H5/3be
DECLARE_MESSAGE_MAP() ZxI]I1)
}; &eU3(F`.
f
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CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) `6UtxJSx
{ W5|j1He&
//{{AFX_DATA_INIT(CAboutDlg) )]3L/
//}}AFX_DATA_INIT b##1hm~+9
} @bE~@4mOu
3Qa?\C&4
void CAboutDlg::DoDataExchange(CDataExchange* pDX) 8+&gp$a$
{ 2!BsEvB(
CDialog::DoDataExchange(pDX); LGAX"/LX
//{{AFX_DATA_MAP(CAboutDlg) A4}#U=3tI
//}}AFX_DATA_MAP .izf#r:<
} 6vF/e#},
$Vsy%gA<
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 9?$RO[vo
//{{AFX_MSG_MAP(CAboutDlg) x`#22"m
// No message handlers BK*z 4m
//}}AFX_MSG_MAP moaodmt]x
END_MESSAGE_MAP() Wy8,<K{
UUGe"]V^g:
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) 9Eu #lV
: CDialog(CCaptureDlg::IDD, pParent) sLZ>v
{ 8sH50jeP
//{{AFX_DATA_INIT(CCaptureDlg) B O]=vH
m_bControl = FALSE; v"/TmiZ
m_bAlt = FALSE; ZOC#i i`:
m_bShift = FALSE; JS PW>W"
m_Path = _T("c:\\"); w1cw1xX*
m_Number = _T("0 picture captured."); brfKd]i
nCount=0; Ms,@t^nk
bRegistered=FALSE; >J>>\Y(p
bTray=FALSE; lAz2%s{6
//}}AFX_DATA_INIT Psp^@
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 .N!{ U
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); 6W$rY] h!
} [1Uz_HY["3
i_NJ -K
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) fQP,=
{ H@Q`
CDialog::DoDataExchange(pDX); puA|NT
//{{AFX_DATA_MAP(CCaptureDlg) cFDxjX?~
DDX_Control(pDX, IDC_KEY, m_Key); 8!;$qVt
DDX_Check(pDX, IDC_CONTROL, m_bControl); |UYED%dC
DDX_Check(pDX, IDC_ALT, m_bAlt); %2}C'MqS
DDX_Check(pDX, IDC_SHIFT, m_bShift); EDtCNqBS~2
DDX_Text(pDX, IDC_PATH, m_Path); v iJJ
e'\2
DDX_Text(pDX, IDC_NUMBER, m_Number); KI`11lJW~
//}}AFX_DATA_MAP P,U$ %C!
} d-h"JZ9
UP]1(S?
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) nGns}\!7'
//{{AFX_MSG_MAP(CCaptureDlg) W"|mpxp
ON_WM_SYSCOMMAND() 8?kP*tmcZ
ON_WM_PAINT() j3{HkcjJG
ON_WM_QUERYDRAGICON() mTJ"l(,3
ON_BN_CLICKED(ID_ABOUT, OnAbout) jFG5)t<D
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) aLYLd/ KV
ON_BN_CLICKED(ID_CHANGE, OnChange) 'g~@"9'oe
//}}AFX_MSG_MAP
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END_MESSAGE_MAP() o)p[
C
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BOOL CCaptureDlg::OnInitDialog() K?[)E3
{ ^&-a/'D$,
CDialog::OnInitDialog(); (_U^
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); -,|ha>r
ASSERT(IDM_ABOUTBOX < 0xF000); -Uri|^t
CMenu* pSysMenu = GetSystemMenu(FALSE); ZL=N[XW4'
if (pSysMenu != NULL) -~\f2'Q
{ K\aAM;)-
CString strAboutMenu; JN|VPvjE
strAboutMenu.LoadString(IDS_ABOUTBOX); M7vj^mt?
if (!strAboutMenu.IsEmpty()) N ocFvF7\
{ <ZVZ$ZW~D
pSysMenu->AppendMenu(MF_SEPARATOR); yhwy>12,K
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); P:^=m*d
} 7
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} ~#q;bS
SetIcon(m_hIcon, TRUE); // Set big icon *Q5x1!#z#
SetIcon(m_hIcon, FALSE); // Set small icon Z}+yI,
m_Key.SetCurSel(0); 6"+8M 3M l
RegisterHotkey(); /BT1oWi1y
CMenu* pMenu=GetSystemMenu(FALSE); =U
c$D*
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); <wa(xDBw
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); `36N
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pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); k2.G%]j
return TRUE; // return TRUE unless you set the focus to a control <6R"h-u"
} R1/q3x
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void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) m!:.>y
{ -bm,:Iy!
if ((nID & 0xFFF0) == IDM_ABOUTBOX) v8~YR'T0`V
{ ]L8q
CAboutDlg dlgAbout; ssA7Dx:
dlgAbout.DoModal(); l])Q.m
} n/ AW?'
else e3g_At\
{ rREzM)GA
CDialog::OnSysCommand(nID, lParam); /BKtw8
} ]4o?BkL
} oq. r\r
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void CCaptureDlg::OnPaint() qv uxhz F
{ &[~[~m|
if (IsIconic()) `.8UKSH+
{ s/h7G}Mu
CPaintDC dc(this); // device context for painting nE7JLtbH
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); SOj`Y|6^:
// Center icon in client rectangle X4'kZ'Sy<
int cxIcon = GetSystemMetrics(SM_CXICON); OXCQfT@\
int cyIcon = GetSystemMetrics(SM_CYICON); r0{]5JZt/
CRect rect; yl/a:Q
GetClientRect(&rect); 'hF@><sqk
int x = (rect.Width() - cxIcon + 1) / 2; |xeE3,8
int y = (rect.Height() - cyIcon + 1) / 2; #w*"qn#2Uz
// Draw the icon :,^>d3k
dc.DrawIcon(x, y, m_hIcon); /PW&$P1.]"
} Egf^H>,.M
else 0+j}};
{ [e1L{ _*l
CDialog::OnPaint(); *KJ7nRKx(w
} Nxi)Q$
} 4TVwa(cB
;wgFr.#hp@
HCURSOR CCaptureDlg::OnQueryDragIcon() 0D~=SekQ9
{ ZF'HM@cfo
return (HCURSOR) m_hIcon; 3Oiy)f@{TF
} 11{y}J
!^L-T?y.2
void CCaptureDlg::OnCancel() 8&."uEOOU
{ Dft%ip2
if(bTray) uw"*zBxl
DeleteIcon(); k!owl+a
CDialog::OnCancel(); ;{Jb6'K1h
} ^mf jn-=3
<[<247%
void CCaptureDlg::OnAbout() y
1nU{Sc@
{ #KE;=$(S
CAboutDlg dlg; .[(P
dlg.DoModal(); Q7(eq0na
} SQE`
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void CCaptureDlg::OnBrowse()
W_}/ O'l{
{ '\t7jQ
CString str; O]ZC+]}/
BROWSEINFO bi; q~O>a0f0
char name[MAX_PATH]; 75AslL?t
ZeroMemory(&bi,sizeof(BROWSEINFO)); 61|B]ei/
bi.hwndOwner=GetSafeHwnd(); mf2Mx=oy
bi.pszDisplayName=name; U|?,N0%Z1
bi.lpszTitle="Select folder"; kFwxK"n@C
bi.ulFlags=BIF_RETURNONLYFSDIRS; 9|3o<
LPITEMIDLIST idl=SHBrowseForFolder(&bi); Z
Xb}R^O-
if(idl==NULL) zo44^=~%
return; hVf^
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); ERC<Dd0
str.ReleaseBuffer(); lwJip IO
m_Path=str; vi|Zit
if(str.GetAt(str.GetLength()-1)!='\\') |_nC6;
m_Path+="\\"; +nQ!4
UpdateData(FALSE); <T4(H[9B
} n1 v,#GE
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void CCaptureDlg::SaveBmp() f[}|rf
{ @ef$b?wg
CDC dc; RH~sbnZ)F
dc.CreateDC("DISPLAY",NULL,NULL,NULL); b{pg!/N4
CBitmap bm; oyW00]ka
int Width=GetSystemMetrics(SM_CXSCREEN); &^+3errO
int Height=GetSystemMetrics(SM_CYSCREEN); u`6/I#q`
bm.CreateCompatibleBitmap(&dc,Width,Height);
i6 L
CDC tdc; F`srE6H
tdc.CreateCompatibleDC(&dc); TvM24Orct
CBitmap*pOld=tdc.SelectObject(&bm); 9U'[88
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); 85hQk+Bu4
tdc.SelectObject(pOld); 0x71%=4H^x
BITMAP btm; NjP ]My
bm.GetBitmap(&btm); :o$@F-$k
DWORD size=btm.bmWidthBytes*btm.bmHeight; t'aSF{%
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); "kr,x3
=
BITMAPINFOHEADER bih; w_3xKnMT\
bih.biBitCount=btm.bmBitsPixel; g ;LVECk
bih.biClrImportant=0; )!a$#"'
bih.biClrUsed=0; ^aptLJF
bih.biCompression=0; D 'n7&