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:
bXA%|7*
~[=d{M!$W 一、实现方法
<
<F VQ8Fs/Zt! 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
yCuLo` @d:GtAW #pragma data_seg("shareddata")
o#WECs> HHOOK hHook =NULL; //钩子句柄
M(I%QD UINT nHookCount =0; //挂接的程序数目
)G-u;1rd static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
smn~p/u static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
MI-S}Qoe static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
lbPn< static int KeyCount =0;
5F!i%{XQvm static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
I@IE0+ [n #pragma data_seg()
gX*j|(r 0|g@;Pc 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
Ai)>ot H?,Dv>.#* DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
Z?'?|vM ,/kZt! BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
g~U<0+&yw% cKey,UCHAR cMask)
KpDb%j {
*3s-=.U~ BOOL bAdded=FALSE;
VVcli* for(int index=0;index<MAX_KEY;index++){
JJ'f\f9 if(hCallWnd[index]==0){
Y!+H9R hCallWnd[index]=hWnd;
;j
qF:Wl@ HotKey[index]=cKey;
X_!km-{ HotKeyMask[index]=cMask;
M+%qVwp bAdded=TRUE;
x U"g~hT KeyCount++;
Pz\ByD break;
4iZg2"[D }
CugZ!>;^ }
?9>wG7cps7 return bAdded;
]68FGH }
.jiJgUa7 //删除热键
] ^?w0A BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
*!E~4z= {
%m
[l/,2x BOOL bRemoved=FALSE;
bdfs'udt9 for(int index=0;index<MAX_KEY;index++){
R0mkEM if(hCallWnd[index]==hWnd){
j<`3xd' if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
`VvQems hCallWnd[index]=NULL;
8(\J~I[^ HotKey[index]=0;
FA := ) HotKeyMask[index]=0;
947;6a%$ bRemoved=TRUE;
3,2$Ny3N KeyCount--;
w'XN<RWA break;
j\zlp }
r^H,H'BohJ }
/^v!B`A@ }
unKl5A[h return bRemoved;
!\'H{,G }
:{VXDT" i7cUp3 *e<}hmDr DLL中的钩子函数如下:
Uq`6VpZ _+Sf+ta LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
o^Lq8u;i* {
IP@3R(DS% BOOL bProcessed=FALSE;
KN"u PW if(HC_ACTION==nCode)
\)6bLB!
{
9%53_nx? if((lParam&0xc0000000)==0xc0000000){// 有键松开
4jGN:*kZ switch(wParam)
t0r0{: {
+@yU ` case VK_MENU:
oI'& &Bt MaskBits&=~ALTBIT;
^q#[oO break;
2,^> lY case VK_CONTROL:
qkz|r?R) MaskBits&=~CTRLBIT;
[h !i{QD break;
bfm+!9=9S case VK_SHIFT:
0pG +yec MaskBits&=~SHIFTBIT;
N%ccy?B break;
d R=0K default: //judge the key and send message
b)M-q{ break;
B}. :7,/0 }
*|y$z+g/ for(int index=0;index<MAX_KEY;index++){
U OGjil{. if(hCallWnd[index]==NULL)
,>za|y<n continue;
}0Uh<v@ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
/8nUecr {
z>iXNwz"? SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
1P'A*`!K bProcessed=TRUE;
'Bxj(LaV- }
0
f$96sl }
G
9(*F }
JtsXMZz else if((lParam&0xc000ffff)==1){ //有键按下
l'@!' switch(wParam)
B3D}'< {
VBS}2>p case VK_MENU:
"A&A?% MaskBits|=ALTBIT;
\13Q >iAu break;
*3!r &iY case VK_CONTROL:
w!v^6[! MaskBits|=CTRLBIT;
NZa 7[}H break;
%{pjC7j# case VK_SHIFT:
68(^* MaskBits|=SHIFTBIT;
cruBJZr* break;
= :zPT;K default: //judge the key and send message
@YQ*a4` break;
HFTeG4R }
b/Ma,} for(int index=0;index<MAX_KEY;index++){
ARt{ 2| if(hCallWnd[index]==NULL)
!8T04988j continue;
z5@i"%f if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
_+nk3-yQw {
'+Z Jf&Ox SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
Ge=^q. bProcessed=TRUE;
Rm}5AJ }
C.":2F;-e }
jDTG15_= }
R4R\B if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
:T?WN+3 for(int index=0;index<MAX_KEY;index++){
C22h*QM* if(hCallWnd[index]==NULL)
&4sz:y4T> continue;
8_G6X\q}; if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
5uahfJk SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
%'_:#!9 //lParam的意义可看MSDN中WM_KEYDOWN部分
; %(sbA }
&0\:MJc }
K3`!0( }
l4.ql1BX@y return CallNextHookEx( hHook, nCode, wParam, lParam );
=$^90Q,Z; }
}* }F_Y+ ::'Y07 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:
~piE$"]& HeO&p@ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
RticGQy&5 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
5h^BXX|Y* 1?^
P=^8 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:
Ejr'Yzl3_ /kK!xe LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
q~5zv4NX {
bZ:+q1
D if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
*PV7s {
(V&d:tW //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
9}a$0H
h SaveBmp();
]\A=[T^ return FALSE;
zVf79UrK }
7&wxnxSk^ …… //其它处理及默认处理
I{>Z0+ }
: _:)S %72(gR2Wa2 8 >LDo"< 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
vu.?@k@ V*fv>f:Yv 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
=M4:nt iR./9}Ze 二、编程步骤
=T6 ~89 ^b`-zFL7 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
~_"V7 [>pBz3fn, 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
+WR?<*_ F=w:!tqA 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
kZ)}tA7j WFV'^-4 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
*` wz O CIoY?a 5、 添加代码,编译运行程序。
yocFdI 4e
eh+T 三、程序代码
2gkN\w6zQ r-!Qw1 ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
^2 H-_ #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
7NWkN7:B #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
_F`JFMS #if _MSC_VER > 1000
%HtgZeY #pragma once
*c=vEQn- #endif // _MSC_VER > 1000
%xG<hNw/ #ifndef __AFXWIN_H__
p%sizn #error include 'stdafx.h' before including this file for PCH
WjK[% ;Z! #endif
ok:L]8UN3 #include "resource.h" // main symbols
B0)|sH class CHookApp : public CWinApp
3 )#Nc| {
7)[Ve1;/N public:
8q{|nH CHookApp();
tu$rVwgM // Overrides
DUl+Jqn4B // ClassWizard generated virtual function overrides
[wm0a4fg //{{AFX_VIRTUAL(CHookApp)
ik/
X!YTu* public:
NziCN*6 virtual BOOL InitInstance();
3imsIBr virtual int ExitInstance();
X<C fy //}}AFX_VIRTUAL
s !2Iui
@
//{{AFX_MSG(CHookApp)
NyRa.hgZ; // NOTE - the ClassWizard will add and remove member functions here.
t$Ff$( // DO NOT EDIT what you see in these blocks of generated code !
hLuv //}}AFX_MSG
v{ohrpb0v DECLARE_MESSAGE_MAP()
(BxmV1 };
w:deQ:k LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
^,ISz-4 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
D84&=EpVZ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
Q4LPi;{\ BOOL InitHotkey();
YG8C<g6E7 BOOL UnInit();
(tVT&eO #endif
[:gg3Qzx {5X,xdzR //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
_4L6 #include "stdafx.h"
5fiWo^s} #include "hook.h"
%bF157X5An #include <windowsx.h>
ercXw7{ #ifdef _DEBUG
T*0;3&sA #define new DEBUG_NEW
i.Y2]1 #undef THIS_FILE
0(f+a_2^Q static char THIS_FILE[] = __FILE__;
DW9MX`!Xc #endif
,vf#e=Z #define MAX_KEY 100
'm6bfS^T #define CTRLBIT 0x04
Lp(`m=;O #define ALTBIT 0x02
hbvcIGaT #define SHIFTBIT 0x01
'1b)(IW #pragma data_seg("shareddata")
9@ fSO< HHOOK hHook =NULL;
CR9wp]-Vd UINT nHookCount =0;
%PB{jo static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
P/1YN static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
snfFRc(RE static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
B'(zhjV static int KeyCount =0;
=JfwHFHd# static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
9oGcbD4* #pragma data_seg()
sK+uwt HINSTANCE hins;
9U.Ctx:F void VerifyWindow();
!i (V.A BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
fi*b]a\' //{{AFX_MSG_MAP(CHookApp)
$6*Yh-"g // NOTE - the ClassWizard will add and remove mapping macros here.
"p;tj74O9 // DO NOT EDIT what you see in these blocks of generated code!
jxkQ #Y //}}AFX_MSG_MAP
&uO-h END_MESSAGE_MAP()
612,J F$
G)vskd CHookApp::CHookApp()
'5$@I{z {
k]r4b`x` // TODO: add construction code here,
C^4,L
\E // Place all significant initialization in InitInstance
3fQ`}OcNr }
`4xQ#K.- YU[#4f~ CHookApp theApp;
0wVM%Dng LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
^Ld5< {
#9[> BOOL bProcessed=FALSE;
gM;m{gXYK if(HC_ACTION==nCode)
/"k [T {
\ZV>5N3hS if((lParam&0xc0000000)==0xc0000000){// Key up
$3p 48`.\ switch(wParam)
9^n0<(99b {
]*k ~jY, case VK_MENU:
.4"BN<9 MaskBits&=~ALTBIT;
I9+h-t break;
80Fa i case VK_CONTROL:
\yw5`5g MaskBits&=~CTRLBIT;
%Y;^$%X%_ break;
d1c+Ii% case VK_SHIFT:
X=m^+%iD MaskBits&=~SHIFTBIT;
JHm Pa break;
$},XRo&R default: //judge the key and send message
}`QZV_ break;
_p1!8*0] }
tR<#CCtRp' for(int index=0;index<MAX_KEY;index++){
0vSPeZ
if(hCallWnd[index]==NULL)
}1k?t h continue;
*Us}E7/"' if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
L(Twclrb {
{vW0O &[ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
LFi* O& bProcessed=TRUE;
;DnUeE8 }
5;/q[oXI }
}2RbX,0l9 }
E+XS7':I else if((lParam&0xc000ffff)==1){ //Key down
LB]3-FsU+ switch(wParam)
K O\HH {
+l)t5Mg\ case VK_MENU:
JS m7-p|E MaskBits|=ALTBIT;
0H4|}+e break;
e4Ibj/ case VK_CONTROL:
Pm2LB<qS MaskBits|=CTRLBIT;
l\AdL$$Mb break;
r`Fs"n#^-4 case VK_SHIFT:
z;9D[ME#1 MaskBits|=SHIFTBIT;
3zKeN:w break;
6U8esPs, default: //judge the key and send message
sj/k';#g break;
Jv3G\9_ }
Gchs$^1`t for(int index=0;index<MAX_KEY;index++)
;Krs*3
s {
&W<9#RPK' if(hCallWnd[index]==NULL)
"DvZCf[} continue;
K7JZUS`C! if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
iVeH\a {
P~!,"rY SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
MLTS<pW/ bProcessed=TRUE;
gS[B;+d }
ydO G8EI }
'Y
,2CN }
fCY??su*
if(!bProcessed){
"dt}k$Gr for(int index=0;index<MAX_KEY;index++){
nPI$<yW7F if(hCallWnd[index]==NULL)
N3#^Ifn[ continue;
AHuIA{AdUR if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
[+b8
!'|& SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
}[!=O+gO }
0%&}w UjV }
)XSHKPTQ1 }
(c}!gjm return CallNextHookEx( hHook, nCode, wParam, lParam );
yLCMu | + }
X0j> g^b8 W(ryL_#; BOOL InitHotkey()
,jz~Np_2 {
=?y0fLTc if(hHook!=NULL){
l}(HE+? nHookCount++;
; (}~m&p return TRUE;
lAo ~w }
85dC6wI4K else
Q
-$)
H;, hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
f &NX~( if(hHook!=NULL)
X)RgXl{ nHookCount++;
5K?/-0yG return (hHook!=NULL);
IOxtuR }
5$:9nPAH BOOL UnInit()
\5<Z [#{ {
->;2CcpHB if(nHookCount>1){
(AjgLNB nHookCount--;
f0^s<:* return TRUE;
fsEQ4xN' }
E6xdPjoWy BOOL unhooked = UnhookWindowsHookEx(hHook);
hfbu+w): if(unhooked==TRUE){
{0,6-dd5 nHookCount=0;
sx7zRw
>X hHook=NULL;
oBub]<.J }
{)b return unhooked;
-:r<sv$ }
0>-}c> t~ I;IB BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
St!0MdCH {
K@[Hej6d BOOL bAdded=FALSE;
T?A3f]U for(int index=0;index<MAX_KEY;index++){
aYk: CYQ if(hCallWnd[index]==0){
&|'yqzS3 hCallWnd[index]=hWnd;
Mby4(M+&n HotKey[index]=cKey;
uR2|> m HotKeyMask[index]=cMask;
^uw]/H3?L bAdded=TRUE;
+{;wOQ. KeyCount++;
^%Y-~yB- break;
ps` j>vX* }
862rol }
XGe;v~L return bAdded;
vAop#V }
AH'3
5Kf) byt$Wqdl BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
7 J6Z? {
+CSv@ />3 BOOL bRemoved=FALSE;
AG%[?1IXW for(int index=0;index<MAX_KEY;index++){
$f+I#uJ if(hCallWnd[index]==hWnd){
+zDRed_]=_ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
zHNBX
Rx hCallWnd[index]=NULL;
/G]/zlUE HotKey[index]=0;
RSB+Saf.8 HotKeyMask[index]=0;
bxO/FrwTj{ bRemoved=TRUE;
hCgk78O? KeyCount--;
H*N{4zBB break;
iC! 6g|]X }
'ks .TS& }
@aFk|.6 }
WO!OaC?+B, return bRemoved;
_ 3>E+9TQ }
Q qj9o2 rqBoUS4 void VerifyWindow()
w3b?i89 {
y}={S,z%22 for(int i=0;i<MAX_KEY;i++){
ZO<\rX ( if(hCallWnd
!=NULL){ OA}; pQ9QN
if(!IsWindow(hCallWnd)){ g__s(
IJ
hCallWnd=NULL; dOaCdnd~
HotKey=0; sL\ {.ad5
HotKeyMask=0; 5"1wz
KeyCount--; If&y 5C
} x2HISxg
} [x=(:soEqC
} D-i, C~W
} xf7YIhL^*
aYc<C$:NC"
BOOL CHookApp::InitInstance() b-<@3N.9]
{ 726UO#*
AFX_MANAGE_STATE(AfxGetStaticModuleState()); 3PLA*n+%
hins=AfxGetInstanceHandle(); ,|zzq@fk
InitHotkey(); Tz9 (</y
return CWinApp::InitInstance(); Ie _{P&J
} K(lVAKiP]
;;CNr_
int CHookApp::ExitInstance() (OwGp3g
{ C}jrx^u>
VerifyWindow(); 1!U:M8T|
UnInit(); wm?%&V/#
return CWinApp::ExitInstance(); Xj30bt
} Y+$]N:\F\
)~"0d;6_
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file :#n>Q1}x
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) Tw*p^rU
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ *$;Zk!sEF
#if _MSC_VER > 1000 %2\Pe 2Z
#pragma once K/}x'*=
#endif // _MSC_VER > 1000 Ii/{xVMD
1BEc"
class CCaptureDlg : public CDialog Ets6tM`
{ g6.I~oQj
// Construction 't*]6^
public: ?-9uf\2_
BOOL bTray; ;0?OBUDO
BOOL bRegistered; :mLXB75gH
BOOL RegisterHotkey(); MwQt/Qv=
UCHAR cKey; fiU#\%uJg
UCHAR cMask; *D[yA
void DeleteIcon(); %`lJA W[
void AddIcon(); b"trg {e
UINT nCount; &{qKoI]
void SaveBmp(); >RJ&b
CCaptureDlg(CWnd* pParent = NULL); // standard constructor rADzJ#CU\
// Dialog Data KC(z TY
//{{AFX_DATA(CCaptureDlg) .EjR<UU
enum { IDD = IDD_CAPTURE_DIALOG }; )^6Os2
CComboBox m_Key;
{;u+? uY
BOOL m_bControl; (w(k*b/
BOOL m_bAlt; AkO);4A;Jd
BOOL m_bShift; :Zob"*T
CString m_Path; [Ne'2z
CString m_Number; ]Z=al`-
//}}AFX_DATA v7#|%
// ClassWizard generated virtual function overrides G7-k ,P^
//{{AFX_VIRTUAL(CCaptureDlg) ,BGUIu6
public: lt2MB#
virtual BOOL PreTranslateMessage(MSG* pMsg); i!RYrae
protected: bNm]h.
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support rb'mFqg*u
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); eq&QWxiD*
//}}AFX_VIRTUAL @}{uibLD\
// Implementation >mEfd=p
protected: Zvfy%k
HICON m_hIcon; O%F*i2I:+k
// Generated message map functions ouFKqRs;
//{{AFX_MSG(CCaptureDlg) JxLfDr,dy
virtual BOOL OnInitDialog(); uKD
}5M?{
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); ,D<U PtPQ
afx_msg void OnPaint(); dmLx $8
afx_msg HCURSOR OnQueryDragIcon(); !yq98I'
virtual void OnCancel(); /P]N40_@
afx_msg void OnAbout(); CM[83>
afx_msg void OnBrowse(); O2 + K
afx_msg void OnChange(); vfm Y>nr
//}}AFX_MSG C"s-ttP
DECLARE_MESSAGE_MAP() EymSrZw
}; #O8=M(- V
#endif \\Q){\S
3=Rk(%:;
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file 5e7\tBab
#include "stdafx.h" =43NSY
#include "Capture.h" L8NZU*"
#include "CaptureDlg.h" FDGG$z?>m
#include <windowsx.h> n^5Q
f\ o
#pragma comment(lib,"hook.lib") s&$e}yxVO
#ifdef _DEBUG Zv-1*hhHf
#define new DEBUG_NEW 0E
(G1o'
#undef THIS_FILE &0%B3
static char THIS_FILE[] = __FILE__; ORWi+H|
#endif ]A#:Uc5
#define IDM_SHELL WM_USER+1 MOp "kA
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); 0,.|-OZ
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); &_hEM~{
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; aX|(%1r
class CAboutDlg : public CDialog (FgX9SV]p9
{ MpJ<. |h
public: q6>}
CAboutDlg(); }? c%L8\
// Dialog Data =]pEvj9o
//{{AFX_DATA(CAboutDlg) Z ZCm438
enum { IDD = IDD_ABOUTBOX }; QF*cdc<
//}}AFX_DATA e#3RT8u#
// ClassWizard generated virtual function overrides Acd@BL*
//{{AFX_VIRTUAL(CAboutDlg) h5-yhG
protected: YmjA!n
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support Eelv i5
//}}AFX_VIRTUAL m@w469&<(q
// Implementation RQ^
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protected: W@'*G*f
//{{AFX_MSG(CAboutDlg) b^ [ z'
//}}AFX_MSG mh SknyqT
DECLARE_MESSAGE_MAP() 1~LfR
}; v*<rNZI
pFwJ:
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) u!F\`Gfm_
{ r_
B.bK
//{{AFX_DATA_INIT(CAboutDlg) 734n1-F?I%
//}}AFX_DATA_INIT "*W# z
} [fo#){3K
3MKu!
void CAboutDlg::DoDataExchange(CDataExchange* pDX) ucU7
@j
{ N`N?1!fM<}
CDialog::DoDataExchange(pDX); Zkqq<
//{{AFX_DATA_MAP(CAboutDlg) ~
L>M-D4o
//}}AFX_DATA_MAP PDCb(5
} SB .=x
?cKTeGrS
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) ,IE.8h)H
//{{AFX_MSG_MAP(CAboutDlg) S{f,EBE
// No message handlers }:;UnE}
//}}AFX_MSG_MAP Km,o+9?1gF
END_MESSAGE_MAP() >lzXyT6x8
83{P7PBQ;]
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) -!li,&,A1
: CDialog(CCaptureDlg::IDD, pParent) >+Iph2]
{ nLv~)IQ}:
//{{AFX_DATA_INIT(CCaptureDlg) Fpeokr"i
m_bControl = FALSE; de.f?y
m_bAlt = FALSE; rX>b R/
m_bShift = FALSE; BF;}9QebmS
m_Path = _T("c:\\"); /;1O9HJa
m_Number = _T("0 picture captured."); Hz==,NR-W
nCount=0; #:/27
bRegistered=FALSE; ki/Cpfq40*
bTray=FALSE; {~s\a2YH
//}}AFX_DATA_INIT I;eoy,
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 eO*s,*
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); RO%M9LISI
} r3-<~k-
PB5h5eX
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) .]JIo&>5
{ T{"Ur:p
CDialog::DoDataExchange(pDX); EBz4k)@m
//{{AFX_DATA_MAP(CCaptureDlg) Z2H bAI8
DDX_Control(pDX, IDC_KEY, m_Key); U,61 3G
DDX_Check(pDX, IDC_CONTROL, m_bControl); nKnrh]hX
DDX_Check(pDX, IDC_ALT, m_bAlt); a l6y=;\jZ
DDX_Check(pDX, IDC_SHIFT, m_bShift); [C<K~
DDX_Text(pDX, IDC_PATH, m_Path); M* Ej*#
DDX_Text(pDX, IDC_NUMBER, m_Number); 5;^1Ab0
//}}AFX_DATA_MAP {&B_b|g*fW
} )|k#cT{=M
ED" fi$
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) XuHR
//{{AFX_MSG_MAP(CCaptureDlg) Wi>m}^}9
ON_WM_SYSCOMMAND() %N`_g' r!
ON_WM_PAINT() :l1-s]
ON_WM_QUERYDRAGICON() g0}jE%)
ON_BN_CLICKED(ID_ABOUT, OnAbout) {x_cgsn
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) ',t*:GBZCf
ON_BN_CLICKED(ID_CHANGE, OnChange) ZZTf/s*
//}}AFX_MSG_MAP ]FIIs58IM
END_MESSAGE_MAP() X# ud5h
v>Kh5H5e~
BOOL CCaptureDlg::OnInitDialog() z\"
.(fIV
{ y,ub*-:
CDialog::OnInitDialog(); k`|E&+og
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); CV\y60n
ASSERT(IDM_ABOUTBOX < 0xF000); vTK8t:JQ~
CMenu* pSysMenu = GetSystemMenu(FALSE); \b8#xT}
if (pSysMenu != NULL) Ak kF6d+
{ q 5z^y(Sv
CString strAboutMenu; Yg,b
;H
strAboutMenu.LoadString(IDS_ABOUTBOX); j u"?b2f
if (!strAboutMenu.IsEmpty()) Hc8He!X*#
{ dJJq]^|
pSysMenu->AppendMenu(MF_SEPARATOR); L=EkY O%\"
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); 6DK).|@$r
} UntFkoO
} {Q_GJ
SetIcon(m_hIcon, TRUE); // Set big icon a7F_{Mm
SetIcon(m_hIcon, FALSE); // Set small icon kD%MFT4
m_Key.SetCurSel(0); y %61xA`#
RegisterHotkey(); bu_@A^ys
CMenu* pMenu=GetSystemMenu(FALSE); d,(q3
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); U1E@pDH
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); Haekr*1%
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); ~_ZK93o(
return TRUE; // return TRUE unless you set the focus to a control ge6S_"
} ?<
teHFj
{Bk` Zlki
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) 3\
Mt+!1{
{ i$@xb_
if ((nID & 0xFFF0) == IDM_ABOUTBOX) <2&qIvHL
{ &B[*L+-E
CAboutDlg dlgAbout; h-;> v.
dlgAbout.DoModal(); <jF&+[*iT
} S Z/yijf
else bPP@
{ A%F8w'8(
CDialog::OnSysCommand(nID, lParam); g'7\WQ
} ly0L)L]\
} &oB*gGRw=7
xR&:]M[Vg
void CCaptureDlg::OnPaint() 26nwUNak
{ t=@d`s:R2
if (IsIconic()) kc P ZIP:
{ W)/f5[L
CPaintDC dc(this); // device context for painting 8~R.iqLoX
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); p#]9^oA
// Center icon in client rectangle <3@nv%
int cxIcon = GetSystemMetrics(SM_CXICON); !-470J
int cyIcon = GetSystemMetrics(SM_CYICON); F1- "yX1B
CRect rect; 7z1@XO<D
GetClientRect(&rect); LmqSxHs0Q
int x = (rect.Width() - cxIcon + 1) / 2; 'h'pM#D
int y = (rect.Height() - cyIcon + 1) / 2; hp(MKfh H
// Draw the icon ,\P|%yv
dc.DrawIcon(x, y, m_hIcon); wzd(=*N
} QK0]9
else 2\k!DF
{ \y=28KKc:c
CDialog::OnPaint(); A>upT'
} kwT)j(pp<
} N~CQh=<
|^UQVNJ
HCURSOR CCaptureDlg::OnQueryDragIcon() Ua
6O~,\
{ ;7?oJH;
return (HCURSOR) m_hIcon; H,w8+vZ4\
} wZ\93W-}
X;6;v]
void CCaptureDlg::OnCancel() #xu1
eX0<
{ =0Y0o_
if(bTray) UR_Ty59
DeleteIcon(); `Kf@<=
CDialog::OnCancel(); ^"
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} mIYKzu_k=
OhCdBO
void CCaptureDlg::OnAbout() m)pHCS
{ +[uh);vD`G
CAboutDlg dlg; yLfyLyO L
dlg.DoModal(); ^$O(oE(D
} __$ ;Z
D3dh,&KO\
void CCaptureDlg::OnBrowse() ri59LY y=
{ ">t^jt{
CString str; uchQv]VB
BROWSEINFO bi; T3
ie-G@<
char name[MAX_PATH]; UV}:3c6 ZX
ZeroMemory(&bi,sizeof(BROWSEINFO)); hf9i%,J
bi.hwndOwner=GetSafeHwnd(); HP[B%
bi.pszDisplayName=name; 4vG-d)"M2
bi.lpszTitle="Select folder"; O4oN)
bi.ulFlags=BIF_RETURNONLYFSDIRS; 'R+^+urq^
LPITEMIDLIST idl=SHBrowseForFolder(&bi); VpHwc!APq
if(idl==NULL) DGCvH)Q
return; 5!Y\STn
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); Wc+(xk
str.ReleaseBuffer(); :KX*j$5U
m_Path=str; &(,&mE
if(str.GetAt(str.GetLength()-1)!='\\') lg$aRqI29
m_Path+="\\"; qtZzJ>Y
UpdateData(FALSE); C}xfo}i
} KP0(w(q
~b)X:ku
void CCaptureDlg::SaveBmp() >m1b/J3#
{ "A~dt5GJ
CDC dc; &ot^+uVH
dc.CreateDC("DISPLAY",NULL,NULL,NULL); <>n|_6'$90
CBitmap bm; !BkE-9v?w
int Width=GetSystemMetrics(SM_CXSCREEN); Ce<z[?u
int Height=GetSystemMetrics(SM_CYSCREEN); oowofi(E
bm.CreateCompatibleBitmap(&dc,Width,Height); {%>~
]9E
CDC tdc; gE@Pb
tdc.CreateCompatibleDC(&dc); dS 4/spNq
CBitmap*pOld=tdc.SelectObject(&bm); FN!?o:|(
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); *lLCH,
tdc.SelectObject(pOld); URm<