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:
f|\onHI)>
.yz}ROmN^ 一、实现方法
s.$3j$vT 8 ?l9XAWt\ 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:
hb}+A=A=+ \W~N #pragma data_seg("shareddata")
Ff)8Q.m HHOOK hHook =NULL; //钩子句柄
4y|BOVl UINT nHookCount =0; //挂接的程序数目
45@^L's static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
4K\G16'$v static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
t'n pG}`tE static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
_852H$H\ static int KeyCount =0;
oKuI0-*mR static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
k>;`FFQU> #pragma data_seg()
X
$jWo@ d3\qKL!~ 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
<M+|rD]oc "\w 7q DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
!>FYK}c7 Cd#(X@n BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
0X6YdW _2X cKey,UCHAR cMask)
~vm%6CABM {
*/`ki;\A BOOL bAdded=FALSE;
9X}10u: for(int index=0;index<MAX_KEY;index++){
+$ 'Zf0U if(hCallWnd[index]==0){
p`olCp' hCallWnd[index]=hWnd;
,Vc6Gwm HotKey[index]=cKey;
NcBIg:V\c HotKeyMask[index]=cMask;
{$0mwAOH " bAdded=TRUE;
;`0%t$@- KeyCount++;
, qMzWa break;
n<LEler#M }
|jGf<Bf5 }
-*1d! return bAdded;
.s?L^Z^ }
8{^kQ/]'| //删除热键
(S>C#A=E\ BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
f\|w' {
03$mYS_? BOOL bRemoved=FALSE;
^UP`%egR for(int index=0;index<MAX_KEY;index++){
LBw1g<& if(hCallWnd[index]==hWnd){
cN/6SGHK if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
Wf+cDpK hCallWnd[index]=NULL;
~[t[y~Hup HotKey[index]=0;
bV^rsJm HotKeyMask[index]=0;
=9H7N]*h bRemoved=TRUE;
Kg{+T` KeyCount--;
(p" %O break;
W: z6Koc0 }
IPS4C[v }
8SMxw~9$ }
<$D`Z-6 return bRemoved;
?qb}?&1 }
?tWaI{95I 9)l$ aBa k
R?qb6 DLL中的钩子函数如下:
)*$lp'~7N 3(>B Ke LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
nGC/R& {
!Jo_"#5 BOOL bProcessed=FALSE;
`aOFs+<) if(HC_ACTION==nCode)
xVw9v6@`h {
akmkyrz '& if((lParam&0xc0000000)==0xc0000000){// 有键松开
Na<pwC switch(wParam)
]=\].% > {
z}.e]|b^H case VK_MENU:
0HZ{Y9] MaskBits&=~ALTBIT;
CT&|QH{ break;
8=!D$t\3 case VK_CONTROL:
1a/++4O.| MaskBits&=~CTRLBIT;
[CY9^N break;
T; 4NRC case VK_SHIFT:
49eD1h3'X[ MaskBits&=~SHIFTBIT;
R8K&R\
break;
1s\Wtw: default: //judge the key and send message
\UA[ break;
kBS9tKBWg }
=0
#OU for(int index=0;index<MAX_KEY;index++){
r-,%2y? if(hCallWnd[index]==NULL)
&<z1k-&! continue;
7 W5@TWM if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
)705V|v {
<|HV. O/! SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
_T60;ZI+^ bProcessed=TRUE;
5=-Q4d }
p:&8sO!m }
GblA9F7 }
,KH#NY] else if((lParam&0xc000ffff)==1){ //有键按下
:@Pl pFK switch(wParam)
*VCXihgo {
.'6gZKXY case VK_MENU:
#<fRE"v:Q MaskBits|=ALTBIT;
l]5KN break;
8]c2r%J case VK_CONTROL:
gb1V~ MaskBits|=CTRLBIT;
}J}-//[A break;
cVv=*81\ case VK_SHIFT:
FaAC&F@u MaskBits|=SHIFTBIT;
\
#F break;
Z-%\
<zT default: //judge the key and send message
"nynl'Ryk break;
#\{l"- }
'ms-*c&
for(int index=0;index<MAX_KEY;index++){
&u."A3( if(hCallWnd[index]==NULL)
yX>K/68 continue;
<_L,t 1H{ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
]h`&&B qt {
|d2SIyUc SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
j^sg6.Z* bProcessed=TRUE;
zaIKdI'/e }
;?Tbnn Wn }
l\H=m3Bg }
6GlJ>r+n if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
mthA4sz for(int index=0;index<MAX_KEY;index++){
-m zIT4 if(hCallWnd[index]==NULL)
g/d<Zfq<{ continue;
UW={[h{.|@ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
Wtd/=gmiI SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
&J]K3w1p //lParam的意义可看MSDN中WM_KEYDOWN部分
eS^7A}*wd- }
1t~G|zhX }
x;KOqfawv }
q[_VuA]& return CallNextHookEx( hHook, nCode, wParam, lParam );
EWhK0Vej= }
nc29j_Id }"H,h)T 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:
C==hox7b C
82omL BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
a5^]20Fa BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
<NY^M! _.Nbt(mz 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:
FX&~\kmV'j F,F4nw<W LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
-7[@R;FS {
Ta0|+IYk< if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
4Z=_,#h4. {
M/'sl; //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
Xl{P8L SaveBmp();
jOunWv| return FALSE;
nHAS( }
x+:UN'"r …… //其它处理及默认处理
d"mkL- }
6'5 7 X7MM2V I*{nP)^9 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。
rU:`*b< xrz,\eTb 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。
kCF>nt@ VA>35w 二、编程步骤
6<SAa#@ey }'V5/>m[ 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";
<c-=3}=U\ G6P?2@ 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
]@c+]{ wu!59pL 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;
L#?Ek- 6:5I26 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;
x,+{9 -#[a7',Z; 5、 添加代码,编译运行程序。
tjGn|+|k $y &E(J 三、程序代码
'~<m~UXvD# z&)A,ryW0 ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
Jb@V}Ul$ #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
m+R[#GE8# #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
gQg"j) #if _MSC_VER > 1000
BWa,f8 #pragma once
?0?#U0(;u #endif // _MSC_VER > 1000
0B/,/KX #ifndef __AFXWIN_H__
$E~`\o%Ev #error include 'stdafx.h' before including this file for PCH
gIa+5\qYY #endif
[Cz-i #include "resource.h" // main symbols
/QWvW=F2< class CHookApp : public CWinApp
oy=js - {
kk@fL public:
L:j<c5 CHookApp();
g`' !HGY // Overrides
O)*+="Rg // ClassWizard generated virtual function overrides
$?Hu#Kn,( //{{AFX_VIRTUAL(CHookApp)
9G#n 0&wRJ public:
9igiZmM virtual BOOL InitInstance();
_Xc8Yg }` virtual int ExitInstance();
]"hFC<w //}}AFX_VIRTUAL
Fn;SF4KOm //{{AFX_MSG(CHookApp)
A@[o;H}XP // NOTE - the ClassWizard will add and remove member functions here.
O7m(o:t x3 // DO NOT EDIT what you see in these blocks of generated code !
VU(v3^1" //}}AFX_MSG
:'-/NtV)o? DECLARE_MESSAGE_MAP()
i Dp)FQ$ };
feDlH[$ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
qZtzO2Mt BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
]Kt6^|S$a BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
!Vn\u BOOL InitHotkey();
l'-Bu( BOOL UnInit();
5h=}j #endif
$aDVG}) iAEbu&XG //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
p
Z|V
3 #include "stdafx.h"
@]%IK(| #include "hook.h"
\^J%sf${ #include <windowsx.h>
Eex~xiiV #ifdef _DEBUG
nLZTK&7} #define new DEBUG_NEW
)Xz,j9GzJS #undef THIS_FILE
O>bC2;+s static char THIS_FILE[] = __FILE__;
.Ni\\ #endif
np"\19^ #define MAX_KEY 100
+s,=lL #define CTRLBIT 0x04
l|JE# #define ALTBIT 0x02
SuJ aL-; #define SHIFTBIT 0x01
# Yj 1w #pragma data_seg("shareddata")
{0Yf]FQb-a HHOOK hHook =NULL;
9iIhte. UINT nHookCount =0;
,GbR!j@6 static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
Q^9_'t}X static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
Xv5wJlc!d static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
r"3=44St static int KeyCount =0;
/$xU static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
m{Wu"
;e #pragma data_seg()
v!-/&}W)1 HINSTANCE hins;
wY{-BuXv void VerifyWindow();
8?#/o c BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
.GPT!lDc //{{AFX_MSG_MAP(CHookApp)
V5nwu# // NOTE - the ClassWizard will add and remove mapping macros here.
#?aPisV
X> // DO NOT EDIT what you see in these blocks of generated code!
g#pr yYz //}}AFX_MSG_MAP
c(f END_MESSAGE_MAP()
MO]F1E?X }#RakV4 CHookApp::CHookApp()
b;B%q$sntC {
ojm @t // TODO: add construction code here,
<y('hI' // Place all significant initialization in InitInstance
y4
#>X }
vFzRg5lH ~k-y &<UR CHookApp theApp;
$ZhFh{DQ. LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
~f&E7su-6+ {
xf\ C|@i BOOL bProcessed=FALSE;
u
OmtyX if(HC_ACTION==nCode)
*k7+/bU~~ {
Fj 8z if((lParam&0xc0000000)==0xc0000000){// Key up
n:I,PS0H< switch(wParam)
:".ARCg {
X&.ArXn* case VK_MENU:
RtkEGxw*^ MaskBits&=~ALTBIT;
WH#1zv break;
wy<S; case VK_CONTROL:
"b~+;<}Q MaskBits&=~CTRLBIT;
jodIv=C break;
xk9%F?) case VK_SHIFT:
p;`>e>$ MaskBits&=~SHIFTBIT;
e-})6)XgA break;
:;%2BSgFU default: //judge the key and send message
{Y(zd[ break;
'|6]_ }
ANAVn@ [ for(int index=0;index<MAX_KEY;index++){
1sy[@Q2b if(hCallWnd[index]==NULL)
9R!atPz9 continue;
CCs%%U/= if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
kYE9M8s; {
Co9^OF-k SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
Pa>AWOG' bProcessed=TRUE;
nmee 'oEw }
].avItg }
5ORo3T% }
]? c
B:} else if((lParam&0xc000ffff)==1){ //Key down
nUaJzPl switch(wParam)
^ox=HNV {
sU<Wnz\[ case VK_MENU:
<q58uuK MaskBits|=ALTBIT;
_O)>$.^6 break;
MVpGWTH@F case VK_CONTROL:
i'<[DjMDlm MaskBits|=CTRLBIT;
a
K[&V't~ break;
+zqn<<9 case VK_SHIFT:
d"1]4.c MaskBits|=SHIFTBIT;
Qab>|eSm break;
L]|gZ&^ default: //judge the key and send message
s2p\]|5 break;
c1(RuP:S }
+%z>H"J. for(int index=0;index<MAX_KEY;index++)
5+4IN5o]= {
/obfw^ if(hCallWnd[index]==NULL)
vQG5*pR*w continue;
zy?|ODM if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
.<0ye_S'y {
](]i 'fE> SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
R{`(c/%8 bProcessed=TRUE;
tPWLg), }
<18( }
H\" sgoJ }
|)th1
UH if(!bProcessed){
_#E0g'3 for(int index=0;index<MAX_KEY;index++){
.&iawz if(hCallWnd[index]==NULL)
4}baSV continue;
tyDU
@M if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
m,_Z6=I: SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
G^|:N[>B }
[ZwjOi:) }
bjW]bRw }
V]6dscQ return CallNextHookEx( hHook, nCode, wParam, lParam );
#pow ub }
u(.e8~s8 )gUR@V>e2 BOOL InitHotkey()
%)8}X>xq {
a 7V-C if(hHook!=NULL){
\;,+ nHookCount++;
(UD@q>c return TRUE;
vzAax k% }
=U9*'EFr else
9wUkh}s hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
N7zft if(hHook!=NULL)
ZgcMv,= nHookCount++;
.p3,O6y2(F return (hHook!=NULL);
1W
LXM^4 }
7hcYD!DS BOOL UnInit()
;?iW%:_, {
S!CC
}3zw if(nHookCount>1){
s?}e^/"v nHookCount--;
-zgI_u9=EB return TRUE;
Y\k#*\'Y~ }
=z69e%. BOOL unhooked = UnhookWindowsHookEx(hHook);
#&aqKVY if(unhooked==TRUE){
OX!tsARC@ nHookCount=0;
L|xbR#v hHook=NULL;
- % h.t+=U }
lvz7#f L~ return unhooked;
DV-d(@`K }
_7L-< xJ8M6O8 BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
HyZqUbHa {
PiIpnoM BOOL bAdded=FALSE;
,m:.-iy? for(int index=0;index<MAX_KEY;index++){
7,o7Cf2 z if(hCallWnd[index]==0){
\&3+D8H>n hCallWnd[index]=hWnd;
BM
.~ 5\ HotKey[index]=cKey;
E
A1?)|}n HotKeyMask[index]=cMask;
IueFx u bAdded=TRUE;
v MH KeyCount++;
*C*U5~Zq7: break;
x*U)Y }
>uhaW@d }
X51: return bAdded;
;))+>%SGCt }
&.Qrs:U Vaw+.sG`AP BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
@9RM9zK.q {
37.S\gO] BOOL bRemoved=FALSE;
`0gyr(fES for(int index=0;index<MAX_KEY;index++){
: bq8N@P/ if(hCallWnd[index]==hWnd){
!``,gExH if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
c]o'xd,T8\ hCallWnd[index]=NULL;
D.u{~ HotKey[index]=0;
eJX9_6m- HotKeyMask[index]=0;
aSQ#k;T[ bRemoved=TRUE;
L\ "d KeyCount--;
y/7\?qfTk break;
S g![Lsj }
qt"m }
Y)2,PES= }
!F'YDjTot return bRemoved;
*P=VFP }
D'DfJwA flbd0NB void VerifyWindow()
8wFJ4v3 {
`d`T*_ for(int i=0;i<MAX_KEY;i++){
?1
4{J]H4 if(hCallWnd
!=NULL){ Om2d.7S
if(!IsWindow(hCallWnd)){ x
g
hCallWnd=NULL; xY(*.T9K
HotKey=0; z46~@y%k
HotKeyMask=0; Qe:seW
KeyCount--; uHzU-FZ|B
} "]Xc`3SM
} h3
}OX{k
} VjZ|$k
} ~=l;=7 T
f6>b|k~
BOOL CHookApp::InitInstance() meO:@Z0
{ :*9Wh
AFX_MANAGE_STATE(AfxGetStaticModuleState()); YUy0!`!`
hins=AfxGetInstanceHandle(); RMu~l@
InitHotkey(); M%P:n/j
return CWinApp::InitInstance(); h
J)h\
} >!1-lfa8
i$6ypuc
int CHookApp::ExitInstance() -X2Buz8
{ 1K50Z.o&@
VerifyWindow(); VTY 5]|;
UnInit(); [5Mr@f4I
return CWinApp::ExitInstance(); Q sCheHP
} ^o&. fQ*
z5*'{t)
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file 1?+St`+{B-
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) T!)(Dv8@F
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ F0Yd@Lk$_
#if _MSC_VER > 1000 #BH*Z(
#pragma once oV78Hq6
#endif // _MSC_VER > 1000 [2M'PT3
^WWQI+pk
class CCaptureDlg : public CDialog TJXT-\Vk
{ |[b{)s?x
// Construction }a(dyr`S
public: @?]RBX?a
BOOL bTray; LG#t<5y~
BOOL bRegistered; 5M*:}*
BOOL RegisterHotkey(); ]Gq !`O1
UCHAR cKey; iSs:oH3l
UCHAR cMask; J)p
l|I
void DeleteIcon(); $kp{Eg '
void AddIcon(); hv>\gBe i
UINT nCount; <=C!VVk4f
void SaveBmp(); 89(Q1R ?:
CCaptureDlg(CWnd* pParent = NULL); // standard constructor g}(L;fy>7
// Dialog Data FXkM#}RgNm
//{{AFX_DATA(CCaptureDlg) Q*ft7$l&
enum { IDD = IDD_CAPTURE_DIALOG }; T{[=oH+
CComboBox m_Key; $*=<Yw4
BOOL m_bControl; gV_}-VvP
BOOL m_bAlt; ge8ZsaiU
BOOL m_bShift; Qh\60f>0
CString m_Path; ~oY^;/ j
CString m_Number; s?L
//}}AFX_DATA 2`=7_v
// ClassWizard generated virtual function overrides 1=Z0w +v{
//{{AFX_VIRTUAL(CCaptureDlg) -PR N:'T
public: z!9-:
virtual BOOL PreTranslateMessage(MSG* pMsg); /f;~X"!
protected: I9ep`X6Y
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support o|["SYIf
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); k~nBiV
//}}AFX_VIRTUAL YT(AUS5n
// Implementation aAUvlb
protected: H"WprHe
HICON m_hIcon; P+/e2Y
// Generated message map functions oYH-wQ j
//{{AFX_MSG(CCaptureDlg) [ v*ju!
virtual BOOL OnInitDialog(); [Z$[rOF
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); 3)ywX&4"L
afx_msg void OnPaint(); 1p=]hC
afx_msg HCURSOR OnQueryDragIcon(); oXF.1f/h
virtual void OnCancel(); ;NITc
afx_msg void OnAbout(); <7jW_R@
afx_msg void OnBrowse(); $qj2w"'
afx_msg void OnChange(); pFjK}JOF
//}}AFX_MSG }*]-jWt1J\
DECLARE_MESSAGE_MAP() vx5Zl&6r
}; Qzw;i8n{
#endif h@ryy\9
[/8%3
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file >~0Z& d
#include "stdafx.h" },-H"Qs
#include "Capture.h" R (n2A$
#include "CaptureDlg.h" wk_@R=*(\
#include <windowsx.h> e+fN6v5pU
#pragma comment(lib,"hook.lib") K]w'&Qm8W
#ifdef _DEBUG R0*|Lo$6
#define new DEBUG_NEW ;9QEK]@
#undef THIS_FILE 7HYwLG:\~
static char THIS_FILE[] = __FILE__; K[zVa
#endif a9Zq{Ysj
#define IDM_SHELL WM_USER+1 4{|"7/PE1
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); mQ"-,mMI
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); Uw<nxD/+
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; {]4LULq
class CAboutDlg : public CDialog \:LW(&[!
{ )zDCu`
public: =41?^1\
CAboutDlg(); &mS^ZyG
// Dialog Data O*P.]d
//{{AFX_DATA(CAboutDlg) 1T
n}
enum { IDD = IDD_ABOUTBOX }; 0?|<I{z2
//}}AFX_DATA ysnx3(+|
// ClassWizard generated virtual function overrides QS;f\'1bb
//{{AFX_VIRTUAL(CAboutDlg) SiN0OB
protected: M x"\5i
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support tw)mepwB
//}}AFX_VIRTUAL XfIJ4ZM5
// Implementation cQ}{[YO
protected: vo{--+{ky!
//{{AFX_MSG(CAboutDlg) /Z}}(6T
//}}AFX_MSG !ULn7\@
DECLARE_MESSAGE_MAP() l,aay-E
}; rEz^
ZXPX,~ 5o
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) &_8947
{ Pr
C{'XDlU
//{{AFX_DATA_INIT(CAboutDlg) XW92gI<O
//}}AFX_DATA_INIT 0jWVp-y
} b"
[|:F>P
%^6F_F_jS
void CAboutDlg::DoDataExchange(CDataExchange* pDX) SSzIih@u
{ Qn2&nD%zi
CDialog::DoDataExchange(pDX); \o3gKoL%
//{{AFX_DATA_MAP(CAboutDlg) Y8t8!{ytg
//}}AFX_DATA_MAP ` 5>b:3
} XQw9~$
4s
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BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) WUTowr
//{{AFX_MSG_MAP(CAboutDlg) I)HPO,7
// No message handlers |k00Z+O(
//}}AFX_MSG_MAP %J-GKpo/S
END_MESSAGE_MAP() >=w)x,0yX
>/6 _ ^
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) 4?01s-Y
: CDialog(CCaptureDlg::IDD, pParent) WTiD[u
{ &BSn?
//{{AFX_DATA_INIT(CCaptureDlg) uhq8
m_bControl = FALSE; 9W);rL|5
m_bAlt = FALSE; h;'~,xA
m_bShift = FALSE; ;5AcFB
m_Path = _T("c:\\"); yaX
iE_.
m_Number = _T("0 picture captured."); (**oRwr%
nCount=0; B`sAk
%
bRegistered=FALSE; sa8Vvzvo.
bTray=FALSE; ]/{)bpu
//}}AFX_DATA_INIT ksm~<;td
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 f%8C!W]Dm
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
{K!)Ss
} )O6>*wq
y<.5xq5_3
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) 5IpDeJ$
{ s,_m{ to
CDialog::DoDataExchange(pDX); 8xMX
//{{AFX_DATA_MAP(CCaptureDlg) wdoR%b{M
DDX_Control(pDX, IDC_KEY, m_Key); :~SyL !
DDX_Check(pDX, IDC_CONTROL, m_bControl); HE\K@3-
DDX_Check(pDX, IDC_ALT, m_bAlt); ?r!o~|9|
DDX_Check(pDX, IDC_SHIFT, m_bShift); DW3G
DDX_Text(pDX, IDC_PATH, m_Path); ^kSqsT"
DDX_Text(pDX, IDC_NUMBER, m_Number); CU~PT.
//}}AFX_DATA_MAP A/?7w
} 4b`=>X;W
kSo"Ak!
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) L\iFNT}g`
//{{AFX_MSG_MAP(CCaptureDlg) T6kdS]4-
ON_WM_SYSCOMMAND() 'O-"\J\
ON_WM_PAINT() EBmt9S
ON_WM_QUERYDRAGICON() o<!?7g{
ON_BN_CLICKED(ID_ABOUT, OnAbout) `qwBn=
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) -DAlRz#d,
ON_BN_CLICKED(ID_CHANGE, OnChange) W(/h Vt
//}}AFX_MSG_MAP >KKMcTOYY
END_MESSAGE_MAP() x$(f7?s] 1
#)VF3T@#'
BOOL CCaptureDlg::OnInitDialog() [a<SDMR
{ ?Ss!e$jf
CDialog::OnInitDialog(); h@wgd~X9
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); -H-~;EzU
ASSERT(IDM_ABOUTBOX < 0xF000); (C)p9-,
CMenu* pSysMenu = GetSystemMenu(FALSE); @=f\<"$vt
if (pSysMenu != NULL) ~7Ux@Sx;
{ YZJyk:H\
CString strAboutMenu; Mrb)
strAboutMenu.LoadString(IDS_ABOUTBOX); mB)bcuPv
if (!strAboutMenu.IsEmpty()) mRK>U$v
{ kg\>k2h
pSysMenu->AppendMenu(MF_SEPARATOR); E&:,oG2M
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); J<lO=
+mg
} FML(4BY,
} IEvdV6{K
SetIcon(m_hIcon, TRUE); // Set big icon sW8dPw
O
SetIcon(m_hIcon, FALSE); // Set small icon Rbv;?'O$L
m_Key.SetCurSel(0); jZrq{Z<
RegisterHotkey(); B4 }bVjs
CMenu* pMenu=GetSystemMenu(FALSE); El"Q'(:/U
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); n'6jou
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); b5n'=doR/I
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); .(2ik5A%9
return TRUE; // return TRUE unless you set the focus to a control ,~W|]/b<q
} uWE^hz"
mpJ#:}n
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) u\nh[1)a)
{ hP&Bt
if ((nID & 0xFFF0) == IDM_ABOUTBOX) @7n"yp*"
{ r",GC]
CAboutDlg dlgAbout; 7. ;3e@s
dlgAbout.DoModal(); H}
g{Cr"Ex
} GWip-wI
else S|+o-[e8O
{
M\Kx'N
CDialog::OnSysCommand(nID, lParam); k|d+#u[Mj@
} jo@J}`\Zt
} )53y
AyP
$iz|\m
void CCaptureDlg::OnPaint() (Ep\Z 6*
{ '2^Q1{ :\
if (IsIconic()) "snw4if
{ cYt!n5w~W
CPaintDC dc(this); // device context for painting ]OzUGXxo~
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); ?6Y?a2 |
// Center icon in client rectangle h'F=YF$o
int cxIcon = GetSystemMetrics(SM_CXICON); &:)Wh[
int cyIcon = GetSystemMetrics(SM_CYICON); ekCC5P!
CRect rect; n.0fVV-A
GetClientRect(&rect); ')3
bl3:
int x = (rect.Width() - cxIcon + 1) / 2; OI*Xt`
int y = (rect.Height() - cyIcon + 1) / 2; G'A R`"F
// Draw the icon wAW5
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dc.DrawIcon(x, y, m_hIcon); =C.$
UX
} <UQbt N-B\
else N?"]
{ n6a`;0f[R
CDialog::OnPaint(); 'q:`? nJ^
} Y0-n\|
} Jg|XH
L)
k\GcHI-
HCURSOR CCaptureDlg::OnQueryDragIcon() e**qF=HCw
{ oM`0y@QCf
return (HCURSOR) m_hIcon; k+pr \d ~
} G<v&4/\p`M
(JFWna0@
void CCaptureDlg::OnCancel() t{vJM!kdlQ
{ 6V01F8&w
if(bTray) YcpoL@ab
DeleteIcon(); rh}J3S5vp
CDialog::OnCancel(); gSQJJxZ{?
} j eP
g7W"
void CCaptureDlg::OnAbout() |8tilOqI
{ `RL"AH:+
CAboutDlg dlg; :X
(=z;B;N
dlg.DoModal(); | h#u^v3
} W|63Ir67
7E~;xn;
void CCaptureDlg::OnBrowse() fS78>*K
{ wi6
~}~%
CString str; uk<9&{
BROWSEINFO bi; )|=j`jCC
char name[MAX_PATH];
]-/VHh
ZeroMemory(&bi,sizeof(BROWSEINFO)); ?2Py_gkf
bi.hwndOwner=GetSafeHwnd(); wEvVL
bi.pszDisplayName=name; P
m e^l%M
bi.lpszTitle="Select folder"; bB3powy9
bi.ulFlags=BIF_RETURNONLYFSDIRS; UrEs4R1#
LPITEMIDLIST idl=SHBrowseForFolder(&bi); + @s"zp;F
if(idl==NULL) O[JL+g4
return; 6G""I]uT
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); o]I\6,T/|
str.ReleaseBuffer(); %/ #NK1&M
m_Path=str; {[?(9u7R
if(str.GetAt(str.GetLength()-1)!='\\') 1NA.nw.
m_Path+="\\"; J]pir4&j
UpdateData(FALSE); N U`
} 6gu!bu`~
CdjI`
void CCaptureDlg::SaveBmp() lchPpm9
{ sN01rtB(UT
CDC dc; H%Q7D-
dc.CreateDC("DISPLAY",NULL,NULL,NULL); ;u46Z
CBitmap bm; l?n\i]'
int Width=GetSystemMetrics(SM_CXSCREEN); JO6)-U$7UG
int Height=GetSystemMetrics(SM_CYSCREEN); |imM#wF
bm.CreateCompatibleBitmap(&dc,Width,Height); hy"\RW
CDC tdc; }*pi<s
tdc.CreateCompatibleDC(&dc); ,M
^<CJ
CBitmap*pOld=tdc.SelectObject(&bm); @O^6&\s>
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); :(*V?WI
tdc.SelectObject(pOld); K:#I
BITMAP btm; *d4eK+U$5
bm.GetBitmap(&btm); \\B(r
DWORD size=btm.bmWidthBytes*btm.bmHeight; XYOC_.f1
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); VY=jc~c]v
BITMAPINFOHEADER bih; h^(*Tv-!
bih.biBitCount=btm.bmBitsPixel; +E(L \
bih.biClrImportant=0; PmEsN&YP]
bih.biClrUsed=0; 3kp+<$
bih.biCompression=0; 6)
[H?Q
bih.biHeight=btm.bmHeight; XrGglBIV
bih.biPlanes=1; V#gK$uv
bih.biSize=sizeof(BITMAPINFOHEADER); gu.}M:u
bih.biSizeImage=size; eiaFaYe\
bih.biWidth=btm.bmWidth; XW)lDiJl
bih.biXPelsPerMeter=0; o~y;j75{.*
bih.biYPelsPerMeter=0; c2 C8g1n
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); 2B&