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:
;=_KLG <
JEBx|U$'Y 一、实现方法
VT-&"Jn KDCq::P< 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:
?BLd~L+ 8"p>_K= #pragma data_seg("shareddata")
r$0"Y-a HHOOK hHook =NULL; //钩子句柄
%,)[%>#{ UINT nHookCount =0; //挂接的程序数目
T>L6 X:d static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
!O $EVl static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
`cf&4Hn static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
!".@Wg$ static int KeyCount =0;
T}fo:aB} static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
U?@UIhtM| #pragma data_seg()
o/9 V1" -6 DfM, 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。
)vo PH)! L$Ss]Ar= 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:
+mH Kk %>pglI BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
*<BasP cKey,UCHAR cMask)
X hTp'2,] {
>.zk-`>- BOOL bAdded=FALSE;
S .1~# for(int index=0;index<MAX_KEY;index++){
cMtkdIO if(hCallWnd[index]==0){
+:oHI[1HG hCallWnd[index]=hWnd;
KcY 2lTvx HotKey[index]=cKey;
jaNkWTm: HotKeyMask[index]=cMask;
"X}!j>- bAdded=TRUE;
[}+
MZ KeyCount++;
UWmWouA break;
8R-?x/: }
.F> cZ, }
fr:RiOPn return bAdded;
8=<d2u' }
t7R; RF //删除热键
$s?q>Z) BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
@8DA {
2j(w*k
q~ BOOL bRemoved=FALSE;
2uU~$7~N for(int index=0;index<MAX_KEY;index++){
8th G- if(hCallWnd[index]==hWnd){
ZW*"Kok if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
W;u~}k< hCallWnd[index]=NULL;
*I>1O* HotKey[index]=0;
R]L7?= HotKeyMask[index]=0;
>Rx^@yQ!+z bRemoved=TRUE;
6%O" KeyCount--;
uVIs5IZzIi break;
QT?fp
>' }
ZJI|762, }
d}IVYI }
gK`6NUj return bRemoved;
'7wWdq }
,AACE7%l JCS$Tm6y<_ Vb0hlJb DLL中的钩子函数如下:
{:'eH
27w]Q_C LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
8n1Sy7K!; {
\6nWt6M BOOL bProcessed=FALSE;
/sC$;l if(HC_ACTION==nCode)
Z]"ktb;+[ {
`2Ff2D^ ? if((lParam&0xc0000000)==0xc0000000){// 有键松开
&!m;s_gi switch(wParam)
2hu;N {
Nluy]h
& case VK_MENU:
6g( 2O[n. MaskBits&=~ALTBIT;
WG(tt. break;
U%j=)VD]) case VK_CONTROL:
wcB-)Ra MaskBits&=~CTRLBIT;
~#@sZ0/< break;
\
$z.x-U case VK_SHIFT:
64`V+Hd MaskBits&=~SHIFTBIT;
|=,V,*" break;
v0\2%PC default: //judge the key and send message
>qCUs3}C{* break;
=U3!D;XP }
k`kmmb> for(int index=0;index<MAX_KEY;index++){
%6dFACv if(hCallWnd[index]==NULL)
;l+3l
ez continue;
c7P"1 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
[%z~0\lu8 {
z8jQaI]j SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
tAc[r)xFw bProcessed=TRUE;
V$<og }
C$
nT&06o }
El]Rrku }
j$Gb>Ex> else if((lParam&0xc000ffff)==1){ //有键按下
EKq9m=Ua@o switch(wParam)
VO[s:e9L {
!:a
pu! case VK_MENU:
@dD70T MaskBits|=ALTBIT;
UPUO8W)<Z6 break;
="<+^$7:k case VK_CONTROL:
4vGkgH<, MaskBits|=CTRLBIT;
sf7'8+wj> break;
>\3=h8zw case VK_SHIFT:
~h tV*R MaskBits|=SHIFTBIT;
|"vqM)V$ break;
*W%HTt"N default: //judge the key and send message
v-_K'm break;
`R=8=6Z+$q }
|jF)~k6 for(int index=0;index<MAX_KEY;index++){
+'JM:};1X8 if(hCallWnd[index]==NULL)
X^r HugQ continue;
W}.;]x%1B if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
WF-B=BRZ {
doVBV Tk^ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
O0';j!?X bProcessed=TRUE;
B TgL: }
@T>)fKCg }
\oLRNr[F }
b78'yM& if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
L:%;
Fx2 for(int index=0;index<MAX_KEY;index++){
$kvF]|<bu if(hCallWnd[index]==NULL)
Vb|DNl@ continue;
ld$LG6[PA if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
Quc9lL SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
,8cw jS2E //lParam的意义可看MSDN中WM_KEYDOWN部分
P ;PS+S9 }
R0,
Q` }
8yA: C }
Tg)Fr) return CallNextHookEx( hHook, nCode, wParam, lParam );
1E=%:? d }
3RZP 12x s>76?Q:i 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:
Qte=<Z) \y"!`.E7\d BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
TOeJnk BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
c+Ejah+ -Q<3Q_ 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:
]?/[& PP, G!L=W#{ LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
#/MUiV {
p4bQCI if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
&5)Kg%r {
srw5&s(3X //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
<dLdSEw SaveBmp();
+\?#8U/k return FALSE;
z2A7:[ }
n!~{4
uUW …… //其它处理及默认处理
9 k)?- }
Gdi1lYu6V IM7k\ 0bzD-K4WVd 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。
-r_z,h| 5E+l5M*( 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。
c<r`E ''s]6Jjw 二、编程步骤
)PVX)2P_C 593D/^}D 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";
`7LN?-
T 4?jXbC k~x 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
{~.h;'m qXn%c" 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;
M%/ML=eLi /<\>j+SC 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;
v1 d] K%Vl:2#F 5、 添加代码,编译运行程序。
]Z&2 TWK(vEDM 三、程序代码
[Z`q7ddd^ [mYmrLs6 ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
bP`yLz #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
9e@Sx{?r #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
9\0 #if _MSC_VER > 1000
;sT7c1X^! #pragma once
N^Xb_jg;J #endif // _MSC_VER > 1000
l[fU0;A #ifndef __AFXWIN_H__
1;i[H[hNY #error include 'stdafx.h' before including this file for PCH
.-k\Q}D #endif
o;7!$v>uK #include "resource.h" // main symbols
J'sVT{@GS class CHookApp : public CWinApp
^!3Sz1 {
]HgAI$aA, public:
!rlN|HB CHookApp();
D[x0sly // Overrides
l
Ztq_* Fl // ClassWizard generated virtual function overrides
HWi0m/J //{{AFX_VIRTUAL(CHookApp)
SuMK=^>% public:
.36z virtual BOOL InitInstance();
rg]eSP3W virtual int ExitInstance();
T+8F'9i` //}}AFX_VIRTUAL
?dVF@ //{{AFX_MSG(CHookApp)
~3dBt@%0 // NOTE - the ClassWizard will add and remove member functions here.
'
^^]Or // DO NOT EDIT what you see in these blocks of generated code !
O~.A} //}}AFX_MSG
Q|rrbx b DECLARE_MESSAGE_MAP()
^sY ]N77 };
NmthvKhH LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
8sOM%y9M BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
?_3K]i1IS BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
40<ifz[7 BOOL InitHotkey();
/0>Cy\eN0 BOOL UnInit();
MoIVval/ #endif
oC#@9>+@+" 9s5gi+l_O //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
B8NOPbT #include "stdafx.h"
#G:~6^A #include "hook.h"
2VyLt=mdh #include <windowsx.h>
f*04=R?w7> #ifdef _DEBUG
H,9e<x#own #define new DEBUG_NEW
;,}tXz #undef THIS_FILE
$&M"Ji static char THIS_FILE[] = __FILE__;
n a])bBn #endif
d nWh}! #define MAX_KEY 100
c!AGKc #define CTRLBIT 0x04
gmB?L0UV #define ALTBIT 0x02
%,g6:Zc@ #define SHIFTBIT 0x01
D0/ \ #pragma data_seg("shareddata")
NYz{[LM HHOOK hHook =NULL;
e*;-vS9H UINT nHookCount =0;
7_)'Re# static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
CS"2Sd 1` static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
y+\nj3v6 static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
d\WnuQR[ static int KeyCount =0;
ZC'(^liAp static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
BaIH7JLZ8 #pragma data_seg()
`{s:lf HINSTANCE hins;
t5G@M&d4Eo void VerifyWindow();
3N|,c]| BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
/!rH DcR //{{AFX_MSG_MAP(CHookApp)
x>m_ v // NOTE - the ClassWizard will add and remove mapping macros here.
#8z2>&:| // DO NOT EDIT what you see in these blocks of generated code!
r5tC //}}AFX_MSG_MAP
W6_/FkO END_MESSAGE_MAP()
b/5 YQxVeS( CHookApp::CHookApp()
\74+ cN {
";AM3 // TODO: add construction code here,
PXz,[<ET?# // Place all significant initialization in InitInstance
(?Fz{ }
yxh8sAZ O+A/thI%*S CHookApp theApp;
TXD\i Dq LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
n,SD JsS^ {
JL45!+ BOOL bProcessed=FALSE;
(dv Cejc^p if(HC_ACTION==nCode)
"l6v[yv {
_ #288`bU if((lParam&0xc0000000)==0xc0000000){// Key up
.YKqYN?y4 switch(wParam)
@6w\q?.s {
w?|gJ*B" case VK_MENU:
$q.%4 MaskBits&=~ALTBIT;
6cQh8_/>{# break;
Q"n|<!DN case VK_CONTROL:
(E )@@p7,: MaskBits&=~CTRLBIT;
`j{5$X break;
ZNNgi@6> case VK_SHIFT:
N
'2Nv MaskBits&=~SHIFTBIT;
RZi]0l_A' break;
}DjW default: //judge the key and send message
#)QR^ss)iw break;
yyb8ll?@a }
Dp4\rps for(int index=0;index<MAX_KEY;index++){
%GQPiWu if(hCallWnd[index]==NULL)
*oqQ=#\ continue;
m~mw1r if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
J=|PZ2" {
{>'GE16x SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
|pqc(B u bProcessed=TRUE;
e$}x;&c Q }
GY%lPp }
Z_Ffiw(p }
c L}}^ else if((lParam&0xc000ffff)==1){ //Key down
$x# 0m switch(wParam)
ZE863M@. {
T+7-6y+ d case VK_MENU:
6 Ty;m>j MaskBits|=ALTBIT;
`3m7b!0k break;
Ml VN'w case VK_CONTROL:
'F.Da#st!} MaskBits|=CTRLBIT;
D&KRJQ/ break;
*f{\ze@5= case VK_SHIFT:
,\ [R\s MaskBits|=SHIFTBIT;
YMx]i,u'+ break;
M|nTO default: //judge the key and send message
VgLrufJ break;
N#
$ob9 }
&g%9$*gmT for(int index=0;index<MAX_KEY;index++)
h3U| ~h {
H=O/w3 if(hCallWnd[index]==NULL)
CmKbpN* continue;
|X@ZM if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
LPO:Ka {
ZqH.$nXP SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
f*U3s N^y bProcessed=TRUE;
]/&qv6D*d }
5'>DvCp%M }
,Axk\7- }
DtLga[M if(!bProcessed){
OOJg%y*H for(int index=0;index<MAX_KEY;index++){
BnJpC<xm if(hCallWnd[index]==NULL)
r/o1a't; continue;
1P i_V if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
"@uKe8r|y SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
&-M>@BMy }
3VNYDY`> }
G+&ug`0]5 }
}EM vEA return CallNextHookEx( hHook, nCode, wParam, lParam );
Q{FK_Mv< }
03Czx ` eU/o I} A BOOL InitHotkey()
`F-<P%k {
eW%Cef if(hHook!=NULL){
J?9K|4
) nHookCount++;
g:&YSjO>G return TRUE;
/,#HGu]q' }
H&0dc.n~. else
SStaS<q' hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
2:b3+{\f if(hHook!=NULL)
{yFCGCs nHookCount++;
jD]Ci#|W return (hHook!=NULL);
3Wv-olv }
Z',Z7QW7 BOOL UnInit()
zY_?$9l0 {
o3C7JG if(nHookCount>1){
%%d3M->C} nHookCount--;
C{Y0}ZrmlF return TRUE;
ePF)wl;m }
#yPQt! BOOL unhooked = UnhookWindowsHookEx(hHook);
"&!7wH ,A if(unhooked==TRUE){
}XHB7, nHookCount=0;
|7XPu hHook=NULL;
V
,#
|\ }
UYOveQ; return unhooked;
rvPY }
Wgp}v93 \piB*"ln BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
VS.~gHx {
Jkf%k3H3I* BOOL bAdded=FALSE;
H{ yUKZH* for(int index=0;index<MAX_KEY;index++){
%0-fn' if(hCallWnd[index]==0){
jd>ug=~x hCallWnd[index]=hWnd;
oW[];r HotKey[index]=cKey;
">zK1t5= HotKeyMask[index]=cMask;
Tnd)4}2p bAdded=TRUE;
~O|g~H5; KeyCount++;
*GUQz break;
X8m@xFW} }
K9z 1'k QH }
6b!F7kyg return bAdded;
LsW7JIQd }
M{(g"ha HRP BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
^~dBO%M^ {
UQ[!k 6 BOOL bRemoved=FALSE;
!UPKy$ for(int index=0;index<MAX_KEY;index++){
irZMgRQAT if(hCallWnd[index]==hWnd){
p"l GR&b if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
MZ$x(Vcj hCallWnd[index]=NULL;
st4WjX_Q HotKey[index]=0;
LpV2XL$p># HotKeyMask[index]=0;
/J@<e{&t~ bRemoved=TRUE;
Vv|%;5( KeyCount--;
<I
5F@pe' break;
w;
rQ\gj }
!!KA9mP }
8D]&wBR: }
9-B/n0 return bRemoved;
e^ Aw%t }
FqWW[Bgd d+m}Z>iQ1O void VerifyWindow()
}Mv$Up {
u)X]]6YJ for(int i=0;i<MAX_KEY;i++){
:ebu8H9f% if(hCallWnd
!=NULL){ 0gevn
if(!IsWindow(hCallWnd)){ -!bfxbP
hCallWnd=NULL; 4`X]$.
HotKey=0; b7uxCH]Z
HotKeyMask=0; 4LY$;J;2
KeyCount--; ;xXD2{q
} ffH]`N
} P*
Z1Rs_
} JKjVrx>
@
} *#y9 Pve
FN+x<VXo(
BOOL CHookApp::InitInstance() z<I@SI^>
{ r$Tu``z \
AFX_MANAGE_STATE(AfxGetStaticModuleState()); qpEK36Js
hins=AfxGetInstanceHandle(); l b9O
InitHotkey(); ;#/Uo8
return CWinApp::InitInstance(); /l%+l@
} w/49O;r V
m=K46i+NE
int CHookApp::ExitInstance() vB?(|
{ v?@=WG
VerifyWindow(); |a|##/
UnInit(); lWyg_YO@
return CWinApp::ExitInstance(); n1Z*wMwC
} -J&
b~t@
W Te1E, M
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file lj US-6
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) )x<oRHx]
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ F?c:
).g
#if _MSC_VER > 1000 1m{c8Z.h/d
#pragma once dq4t@:\o0
#endif // _MSC_VER > 1000 O>c2*9PM
SB)Hz8<
class CCaptureDlg : public CDialog N5F+h94z]
{ A+QOox]<
// Construction Io*mFa?
public: b/]@G05>>
BOOL bTray; 1nZ7xCDK98
BOOL bRegistered; 4qKMnYR
BOOL RegisterHotkey(); Ly~s84k_po
UCHAR cKey; cT.8&EEW
UCHAR cMask; IxU#x*
void DeleteIcon(); 6j6P&[
void AddIcon(); @xkI?vK6
UINT nCount;
m1#,B<6
void SaveBmp(); u-k!h
CCaptureDlg(CWnd* pParent = NULL); // standard constructor
Ir?ehA
// Dialog Data #I-qL/Lm
//{{AFX_DATA(CCaptureDlg) E]gy5y
enum { IDD = IDD_CAPTURE_DIALOG }; b8O }XB
CComboBox m_Key; /4Sul*{hc
BOOL m_bControl; 08W^
BOOL m_bAlt; 5uAUi=XA>S
BOOL m_bShift; ^@-qnU lH
CString m_Path; Y-
tK
CString m_Number; 0ZJN<AzbA
//}}AFX_DATA V }wh
// ClassWizard generated virtual function overrides p9Y`_g`
//{{AFX_VIRTUAL(CCaptureDlg) `]$H\gNI[8
public: ,AuejMd
virtual BOOL PreTranslateMessage(MSG* pMsg); /8[T2Z!
protected: xN>+!&3%w
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support |Qz"Z<sNYw
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); ~|R/w%*C
//}}AFX_VIRTUAL |QO)xEn~
// Implementation r34 GO1d
protected: J]gtgt^
HICON m_hIcon; ZK?:w^Z
// Generated message map functions ,/Yo1@U
//{{AFX_MSG(CCaptureDlg) )%Lgo${[;
virtual BOOL OnInitDialog(); HI!bq%TZ4
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); dx)v`.%V
afx_msg void OnPaint();
3F\UEpQ
afx_msg HCURSOR OnQueryDragIcon(); ]D\p<4uepM
virtual void OnCancel(); +]S!pyZ"
afx_msg void OnAbout(); tK LAA+Z
afx_msg void OnBrowse(); be(p13&od
afx_msg void OnChange(); |>Wi5h{6X
//}}AFX_MSG Y6ORI
DECLARE_MESSAGE_MAP() M^?=!!US^
}; 8
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#endif v>'mW
gH[lpRu|7
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file 39Zs
#include "stdafx.h" />[~2d
kb
#include "Capture.h" BDc "0XH
#include "CaptureDlg.h" c
6$n:
#include <windowsx.h> kOLS<>.
#pragma comment(lib,"hook.lib") qp`G5bw
#ifdef _DEBUG .9u,54t
#define new DEBUG_NEW a4D4*=!G0
#undef THIS_FILE }<
m@82\
static char THIS_FILE[] = __FILE__; gt:Ot0\7
#endif (IIOVv
1J
#define IDM_SHELL WM_USER+1 =:pN82.G
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); .,( ,<
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); J>S`}p
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; s[tFaB 1
class CAboutDlg : public CDialog 1`@rAA>h'
{ v}^
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public: !Z`xwk"!
CAboutDlg(); Nk/Ms:57y
// Dialog Data +{/*P5
//{{AFX_DATA(CAboutDlg) SPY4l*kX
enum { IDD = IDD_ABOUTBOX }; f')3~)"
//}}AFX_DATA iT"H%{+~
// ClassWizard generated virtual function overrides @V5'+^O
//{{AFX_VIRTUAL(CAboutDlg) G[[NDK
protected: ^bckl
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virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support ]J6+nA6)
//}}AFX_VIRTUAL bmu<V1[W
// Implementation ,';+A{aV
protected: 5jBBk*/\
//{{AFX_MSG(CAboutDlg) _=oNQ
//}}AFX_MSG gKay3}w
DECLARE_MESSAGE_MAP() `@r#o&
}; y1zep\-D
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CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) dL!K''24{
{ p!w}hB598
//{{AFX_DATA_INIT(CAboutDlg) wJF Fg :
//}}AFX_DATA_INIT k%v/&ojI
} D$[/|%3
kzcD}?mSS
void CAboutDlg::DoDataExchange(CDataExchange* pDX) M"$TXXe
{ )gq(
CDialog::DoDataExchange(pDX); dk9nhS+faJ
//{{AFX_DATA_MAP(CAboutDlg) Ch9A6?=Hj8
//}}AFX_DATA_MAP q{t"=@lX01
} hhvP*a_J
-!p-nk@9|
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) ,9;d"ce
//{{AFX_MSG_MAP(CAboutDlg) -?Aa RwZ,
// No message handlers :j m|)
//}}AFX_MSG_MAP 7OOod1
END_MESSAGE_MAP() tHo0q<.oX
5`3f"(ay/
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) %1p4K)
: CDialog(CCaptureDlg::IDD, pParent) |uE_aFQs
{ X@7K#@5
//{{AFX_DATA_INIT(CCaptureDlg) 07dUBoq
m_bControl = FALSE; PX1Scvi
m_bAlt = FALSE; D3emO'`gQ
m_bShift = FALSE; vDAv/l9
m_Path = _T("c:\\"); pY9>z;qD
m_Number = _T("0 picture captured."); o )
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nCount=0; _\Cd.
bRegistered=FALSE; y|+ltA K
bTray=FALSE; Y;eJo
//}}AFX_DATA_INIT ]Zf@NY
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 xR,;^R|C
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); R.)U<`| |
} !jDqRXi(
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void CCaptureDlg::DoDataExchange(CDataExchange* pDX) 9N'um%J3%s
{ y'k4>,`9e
CDialog::DoDataExchange(pDX); C4P7,
//{{AFX_DATA_MAP(CCaptureDlg) (d C<N3
DDX_Control(pDX, IDC_KEY, m_Key); &sx|sLw)
DDX_Check(pDX, IDC_CONTROL, m_bControl); |k4ZTr]?
DDX_Check(pDX, IDC_ALT, m_bAlt); q61
rNOw_
DDX_Check(pDX, IDC_SHIFT, m_bShift); =w.#j-jR
DDX_Text(pDX, IDC_PATH, m_Path); g loo].z
DDX_Text(pDX, IDC_NUMBER, m_Number); Gr;~P*
//}}AFX_DATA_MAP (A*r&Ak[
} V8xv@G{;
1% )M-io
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) 'c<@SVF{Zz
//{{AFX_MSG_MAP(CCaptureDlg) #:68}f"$
ON_WM_SYSCOMMAND() :;XHA8
ON_WM_PAINT() 7=ZB;(`L1
ON_WM_QUERYDRAGICON() xUD$i?3z
ON_BN_CLICKED(ID_ABOUT, OnAbout) F*d{<
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) u[jdYWQa
ON_BN_CLICKED(ID_CHANGE, OnChange) 2r~ Nh](
//}}AFX_MSG_MAP XfxNyZsy&>
END_MESSAGE_MAP() >gr6H1
!P!|U/|c
BOOL CCaptureDlg::OnInitDialog() [VPqI~u5)
{ '}5}wCLA
CDialog::OnInitDialog(); ~^"cq
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ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); HC8{);
ASSERT(IDM_ABOUTBOX < 0xF000); V_(?mC
CMenu* pSysMenu = GetSystemMenu(FALSE); Iq\sf-1E
if (pSysMenu != NULL) XY|-qd}A
{ =k[!p'~jD
CString strAboutMenu; ):+H`Hcm
strAboutMenu.LoadString(IDS_ABOUTBOX); 79%${ajSI
if (!strAboutMenu.IsEmpty()) /d >fp
{ Z3R..vy8
pSysMenu->AppendMenu(MF_SEPARATOR); )vS##-[_
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); A?;/]m;
} 1{"fmV
} 7@Di nA!
SetIcon(m_hIcon, TRUE); // Set big icon jq["z<V)x
SetIcon(m_hIcon, FALSE); // Set small icon |l ~BdP
m_Key.SetCurSel(0); $}k"wI[
RegisterHotkey(); JPUDnPr
CMenu* pMenu=GetSystemMenu(FALSE); ;8g#"p*&
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); Vb 4Qt#o
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); ]'_z(s}
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); L#u6_`XJ+
return TRUE; // return TRUE unless you set the focus to a control RkLH}`#
} XR\ iQ
hBE}?J>
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) <UQ:1W8>B
{ 7B%@f9g
if ((nID & 0xFFF0) == IDM_ABOUTBOX) (7ew&u\Li
{ u 3,b,p
CAboutDlg dlgAbout; fD\h5`-
dlgAbout.DoModal(); oT|E\wj
} z<<` 1wqg
else 3Uag[ms
{ 6XQ)Q)
CDialog::OnSysCommand(nID, lParam); 66'TdF]"
} h)wR[N]n
} ~:)$~g7>b
:M3l#`4Q
void CCaptureDlg::OnPaint() O:7y-r0i
{ 6g$04C3tHi
if (IsIconic()) ~*B1}#;
{ z7P PwTBa
CPaintDC dc(this); // device context for painting <tF]>(|M
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); E7_^RWG
// Center icon in client rectangle A{6ZEQAh>
int cxIcon = GetSystemMetrics(SM_CXICON);
5Ll[vBW
int cyIcon = GetSystemMetrics(SM_CYICON); LwGcy1F.
CRect rect; x2ol
GetClientRect(&rect); RV(}\JU
int x = (rect.Width() - cxIcon + 1) / 2; +Kq>r|;
int y = (rect.Height() - cyIcon + 1) / 2; h'-TZXs0e1
// Draw the icon 2|%30i,vV
dc.DrawIcon(x, y, m_hIcon); ;*Z
w}51
} ?>o39|M_w
else LOida# R
{ "W+4`A(/l
CDialog::OnPaint(); \R-u+ci$ZY
} N M8F
} Z@ws,f^e
v8%]^` '
HCURSOR CCaptureDlg::OnQueryDragIcon() *Nt6 Ufq6
{ 4UL-j
return (HCURSOR) m_hIcon; I$mOy{/#
} Ew:JpMR
XbH X,W$h
void CCaptureDlg::OnCancel() _u:#2K$
{ IWT##']G
if(bTray) ZY/at/v
DeleteIcon(); ,OasT!Sr
CDialog::OnCancel(); sG VC+!E
} MJg^
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void CCaptureDlg::OnAbout() ixS78KIr
{ D!mhR?t
CAboutDlg dlg; Zh(f2urKV
dlg.DoModal(); q$t& *O_
} hsE!3[[
}]s~L9_z['
void CCaptureDlg::OnBrowse() *TXq/
3g
{ R*[ACpxr
CString str; Zka;}UL&Q
BROWSEINFO bi; KcU,RTE
char name[MAX_PATH]; =;{S>P!I(t
ZeroMemory(&bi,sizeof(BROWSEINFO)); Z9sg6M@s
bi.hwndOwner=GetSafeHwnd(); 8@qahEgQ
bi.pszDisplayName=name; MoX*e
bi.lpszTitle="Select folder"; nK|";
bi.ulFlags=BIF_RETURNONLYFSDIRS; WWe.1A,
LPITEMIDLIST idl=SHBrowseForFolder(&bi); A!f0AEA,
if(idl==NULL) 'Aqmf+Mm
return; ~clWG-i
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); =[k9{cVW
str.ReleaseBuffer(); pj )I4C)
m_Path=str; I0ie3ESdN
if(str.GetAt(str.GetLength()-1)!='\\') cu"%>>,,
m_Path+="\\"; =_1" d$S&
UpdateData(FALSE); ld?M,Qd
} O:x=yj%^
8zGzn%^
void CCaptureDlg::SaveBmp() 82=][9d #
{ 1Jd: %+T
CDC dc; 08`
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dc.CreateDC("DISPLAY",NULL,NULL,NULL); wd]Yjr#%Ii
CBitmap bm; qQ_B[?+W
int Width=GetSystemMetrics(SM_CXSCREEN); iBi/9
int Height=GetSystemMetrics(SM_CYSCREEN); "_l[4o[D
bm.CreateCompatibleBitmap(&dc,Width,Height); 0PfFli`2;
CDC tdc; @<PL
tdc.CreateCompatibleDC(&dc); 4Oy
c D
CBitmap*pOld=tdc.SelectObject(&bm); _YJw F1e+M
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); NWpRzh8$u
tdc.SelectObject(pOld); j>T''Tf
BITMAP btm; !^7:Rr_
bm.GetBitmap(&btm); [V f|4xcD
DWORD size=btm.bmWidthBytes*btm.bmHeight; m88~+o<G%
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); Rk=B;
BITMAPINFOHEADER bih; Qh[t##I/
bih.biBitCount=btm.bmBitsPixel; H xlw1(zS
bih.biClrImportant=0; 1,QRfckks
bih.biClrUsed=0; Xm4wuX"e=
bih.biCompression=0; Mm;)O'XDE
bih.biHeight=btm.bmHeight; 4(&'V+o
bih.biPlanes=1; zXD@M{
bih.biSize=sizeof(BITMAPINFOHEADER);
4[ra
bih.biSizeImage=size; S'O0'5U@
bih.biWidth=btm.bmWidth; JU@$(
bih.biXPelsPerMeter=0; + ND9###
bih.biYPelsPerMeter=0; .3&m:P8zV
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); <