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:
q\!"FDOl4
]!P6Z? 一、实现方法
Bw`? zd\* =|$U`~YB 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
!7#*Wdt+P ';v2ld 9 #pragma data_seg("shareddata")
MxGQM> HHOOK hHook =NULL; //钩子句柄
OH n~DL2 UINT nHookCount =0; //挂接的程序数目
G&wYV[Ln static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
~/SLGyu static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
~KGE(o4p static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
*CF80DJ static int KeyCount =0;
UDcr5u eKn static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
x3Fn'+ #pragma data_seg()
\KpJIHkBRy ^5 "yY2}- 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
v/]xdP^Z 'X&"(M DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
|4aU&OX pG*W>F BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
FRPdfo37 cKey,UCHAR cMask)
}L{GwiDMDl {
g;o5m} BOOL bAdded=FALSE;
#z_.!E for(int index=0;index<MAX_KEY;index++){
7X$pgNRx/a if(hCallWnd[index]==0){
8r,0Qic2K hCallWnd[index]=hWnd;
#>5T,[{?j HotKey[index]=cKey;
t?weD{O HotKeyMask[index]=cMask;
yg|yoL'g bAdded=TRUE;
Pa|*Jcr KeyCount++;
W Kd:O)J break;
V%M@zd?u. }
@WKJ7pt`'N }
XL1x8IB return bAdded;
l0',B*og }
^\VVx:] //删除热键
3ox|Mz<aZX BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
G&6`?1k {
=t}m BOOL bRemoved=FALSE;
7Z}T!HFMr for(int index=0;index<MAX_KEY;index++){
yWH!v]S if(hCallWnd[index]==hWnd){
V3
~&R:Z9e if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
G)3r[C^[k hCallWnd[index]=NULL;
R\6dvd HotKey[index]=0;
5]3Mj*u\ HotKeyMask[index]=0;
!.|A}8nK bRemoved=TRUE;
-7I%^u KeyCount--;
q?0&0 break;
j3
@Q }
skt9mU }
!i{5mc\ }
AY9#{c>X return bRemoved;
~Bt>Y }
4 `}6W>*R }?U
#@ h l>7?B2^<E DLL中的钩子函数如下:
?Bd6<F-G f_. 0 uM LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
a{}8030S {
Hv
=7+O$ BOOL bProcessed=FALSE;
wI[J> 9Qn if(HC_ACTION==nCode)
~\O,#j`_ {
5*y6{7FLp if((lParam&0xc0000000)==0xc0000000){// 有键松开
- l0X]&Ex switch(wParam)
A(JgAV1{ {
#<w2xR]: case VK_MENU:
SXV
f&8 MaskBits&=~ALTBIT;
r)dXcus break;
1=jwJv.^/ case VK_CONTROL:
o<Rrr, MaskBits&=~CTRLBIT;
cMAY8$ break;
)EsFy6K: case VK_SHIFT:
;'4Kg@/ MaskBits&=~SHIFTBIT;
n1y*`5! break;
^QTkre default: //judge the key and send message
@WzrrCpj break;
B!1L W4^ }
TzV~I\a| for(int index=0;index<MAX_KEY;index++){
QLH6Nmk if(hCallWnd[index]==NULL)
s#(<zBZ9p# continue;
tHH @[E+h if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
<d3a {
ru*}lDJ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
>6z7.d bProcessed=TRUE;
G>+iisb% }
=#?=Lh }
w`>g^_xsg }
$4>x4* else if((lParam&0xc000ffff)==1){ //有键按下
=K6{AmG$ switch(wParam)
F#l!LER^1g {
R lmeZy4.
case VK_MENU:
U 0dhr; l MaskBits|=ALTBIT;
vsbD>`I break;
e:iqv?2t case VK_CONTROL:
D{iPsH6};5 MaskBits|=CTRLBIT;
iaQ3mk# break;
P{>-MT2E case VK_SHIFT:
(fC U+ MaskBits|=SHIFTBIT;
NYF
7Ep; _ break;
5[rA>g~ default: //judge the key and send message
[gE2;J0* break;
#}nDX4jI }
GuRJ for(int index=0;index<MAX_KEY;index++){
bqm%@*fZo if(hCallWnd[index]==NULL)
ne'Y {n(8% continue;
Znh)m if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
|F?/L> {
|&0Cuwt SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
sj% \lq bProcessed=TRUE;
.Gnzu"lod }
E>x,$w<? }
690;\O ' }
"I&,':O+ if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
6kHb*L Je for(int index=0;index<MAX_KEY;index++){
Q`(h if(hCallWnd[index]==NULL)
S1d{! ` 3 continue;
*d,Z?S/ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
8H2A<&3i SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
\PgMMc4' //lParam的意义可看MSDN中WM_KEYDOWN部分
sn:wLc/GAd }
:P20g]( }
>`Zw0S }
rn%q*_3-o return CallNextHookEx( hHook, nCode, wParam, lParam );
vS+E`[ }
hGlRf_{ 9i/VvW 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
E|omC_h qZ DP- BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
y>_*}>2 ,O BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
z)]Br1 kU[#.
y=%p 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
'mU7N<Q$qQ )w&k&TY4H LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
8YwSaBwO {
2f7]=snCG if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
iP+3) {
/WJ+e //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
eUm,=s SaveBmp();
k5]`:k6 return FALSE;
R}Z2rbt }
Y@R9+7! …… //其它处理及默认处理
|GnqfD }
b0!ZA/YC- kESnlmy@J ca!DZ%y 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。
/U =eB?> o<nkK+=Afm 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。
kC4}@{4i S|v")6 二、编程步骤
?_Y2'O 23~KzC 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";
\?rBtD( "`8~qZ7k 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
JN:EcVuy |\_d^U&` 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;
{|ChwM\x Y<EdFzle 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;
%$H~ NoG`J$D 5、 添加代码,编译运行程序。
}Gg:y? [Uw/;Kyh 三、程序代码
=[T_`*s& U|}Bk/0. ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
-P'KpX:]hd #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
dpWBY3(7a #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
UpIt"+d2& #if _MSC_VER > 1000
( :ObxJ* #pragma once
Eggdj+ #endif // _MSC_VER > 1000
1pT-PO3= #ifndef __AFXWIN_H__
!Al?B9KJ #error include 'stdafx.h' before including this file for PCH
ZAcH`r* #endif
&]mZp& #include "resource.h" // main symbols
Zr
U9oy&!C class CHookApp : public CWinApp
gV-x1s+ {
~i ImM|*0 public:
Zn]njf1x CHookApp();
BqA // Overrides
leSR2os // ClassWizard generated virtual function overrides
)r^)e4UI //{{AFX_VIRTUAL(CHookApp)
"UDV4<|^k public:
X[Q:c4' virtual BOOL InitInstance();
FJl_2 virtual int ExitInstance();
\uTy\KA //}}AFX_VIRTUAL
Bw;LGEHi| //{{AFX_MSG(CHookApp)
;mw$(ZKa# // NOTE - the ClassWizard will add and remove member functions here.
|0e7<[ // DO NOT EDIT what you see in these blocks of generated code !
<B%s9Zy //}}AFX_MSG
1<ic
5kB DECLARE_MESSAGE_MAP()
&>]c"?C* };
[^4)3cj7} LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
eVy> BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
QFS5PZ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
-lNq.pp3-$ BOOL InitHotkey();
eumpNF%$ BOOL UnInit();
~7}aW# #endif
;&N=t64" Cj6+zJ //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
yaD_c; #include "stdafx.h"
HpX ;:/I #include "hook.h"
XzBnj7E #include <windowsx.h>
|{a`,%mw #ifdef _DEBUG
>m-VBo #define new DEBUG_NEW
m\hzQ9 #undef THIS_FILE
6|-V{ static char THIS_FILE[] = __FILE__;
!iO%?nW; #endif
'q_^28rK #define MAX_KEY 100
|\W9$V #define CTRLBIT 0x04
AsOkOS3 #define ALTBIT 0x02
c6@7>PM #define SHIFTBIT 0x01
ipThwp9 #pragma data_seg("shareddata")
*49lM; HHOOK hHook =NULL;
|pA UINT nHookCount =0;
X'
,0vK static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
6|Qg=4_FHt static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
g]V_)} static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
Mt93YD-2+ static int KeyCount =0;
;;#_[Zl static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
\[57Dmo #pragma data_seg()
?b8 : HINSTANCE hins;
3m#/1=@o void VerifyWindow();
BsJ
d*-:X BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
Ww[Xqmg //{{AFX_MSG_MAP(CHookApp)
+p
Y*BP+~i // NOTE - the ClassWizard will add and remove mapping macros here.
Q,f~7IVX // DO NOT EDIT what you see in these blocks of generated code!
RiPxz=kr //}}AFX_MSG_MAP
z3bRV{{YqN END_MESSAGE_MAP()
R|&Rq(ow" [K=M;$iQ CHookApp::CHookApp()
QQPT=_P] {
-*<4 hFb // TODO: add construction code here,
jgW-&nK! // Place all significant initialization in InitInstance
ZgzjRa++ }
5x=aJl;G VPh0{(O^= CHookApp theApp;
>OLKaghV.5 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
@X?7a]+;8 {
RI[=N:C^ BOOL bProcessed=FALSE;
p";5J+?( if(HC_ACTION==nCode)
|}-bMQ| {
r+D ?_Lk if((lParam&0xc0000000)==0xc0000000){// Key up
0'3f^Ajf switch(wParam)
5p}ri,Y< {
+}.~" case VK_MENU:
1z6$>{FUR MaskBits&=~ALTBIT;
QCD
MRh n break;
AVnH|31dC~ case VK_CONTROL:
<?>1eU%
MaskBits&=~CTRLBIT;
A5\00O~ break;
l+vD`aJ 3 case VK_SHIFT:
%tvP\(]h MaskBits&=~SHIFTBIT;
<l.l6okp break;
"PD^]m default: //judge the key and send message
0ap_tCY break;
cs]h+yE }
lA/.4"nN for(int index=0;index<MAX_KEY;index++){
u^4$<fd if(hCallWnd[index]==NULL)
AbExJ~JV\g continue;
+v.<Fw2k# if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
g!\H^d4 {
j&Trvw<t SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
"M!]t,?S bProcessed=TRUE;
]J(BaX4 }
E^`-:L(_ }
Ym8
V) }
[KMNMg else if((lParam&0xc000ffff)==1){ //Key down
:u9OD` D switch(wParam)
3cA'9 {
bl3?C case VK_MENU:
GiK4LJ~cH) MaskBits|=ALTBIT;
DuMzK%
break;
W<@9ndvH case VK_CONTROL:
+Zg@X.z MaskBits|=CTRLBIT;
KPrH1 [VU break;
)vsX (/WU case VK_SHIFT:
qI%X/' MaskBits|=SHIFTBIT;
A`:a
T{j break;
=G9I7Y@ default: //judge the key and send message
`PUGg[Zx^ break;
(uVL!%61k }
2;w`W58
for(int index=0;index<MAX_KEY;index++)
!kS/Ei {
/os,s[w if(hCallWnd[index]==NULL)
X5tx(}j continue;
|[Rlg`TQ;* if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
kK|D&Xy` {
o* ~aB_ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
AnK~<9WQj bProcessed=TRUE;
7tP%tp
ez }
!+u
K@z&G }
ictV7) }
>/4N :=.h if(!bProcessed){
T jE'X2/ for(int index=0;index<MAX_KEY;index++){
4D}hYk$eP0 if(hCallWnd[index]==NULL)
)~ 0TGy| continue;
X`fb\}~R( if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
}a%1$>sj SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
al" =ld( }
7Fx0#cS"\ }
kMx)G] }
DF>3)oTF return CallNextHookEx( hHook, nCode, wParam, lParam );
tv_&PIu]L }
akFT 0@9 1,(WS
F BOOL InitHotkey()
hv`I`[/J {
W\2 ']7}e if(hHook!=NULL){
p ,.6sk nHookCount++;
#g/m^8n?s return TRUE;
2){O&8 A }
<aLS4 else
?<` ;lu/eL hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
GC~nr-O if(hHook!=NULL)
PIAE6,* nHookCount++;
Z(t7QFd return (hHook!=NULL);
c'>_JlG~ }
pm=m~ BOOL UnInit()
O7CW#F {
_X|prIOb= if(nHookCount>1){
JW!.+
Q nHookCount--;
:(\JY?+w return TRUE;
O0FUJGuTS }
UwxszEHC BOOL unhooked = UnhookWindowsHookEx(hHook);
pC]XbokES if(unhooked==TRUE){
%Zp|1J'" nHookCount=0;
fD lo L hHook=NULL;
\,fa"^8 }
Gr 4v&Mz: return unhooked;
Ze[,0Y!u& }
:..WL;gC z-qbe97 BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
tY>Zy1hlI {
I(Z\$ BOOL bAdded=FALSE;
9a @rsyX for(int index=0;index<MAX_KEY;index++){
dr(-k3ex if(hCallWnd[index]==0){
Mg2 e0}{ hCallWnd[index]=hWnd;
d@ >i=l [ HotKey[index]=cKey;
C5~n^I| HotKeyMask[index]=cMask;
!Sw=ns7 bAdded=TRUE;
$}.+}'7$ KeyCount++;
~8yh,U break;
b8_F2 }
peF)U
!`D }
LRg]'? return bAdded;
uIbAlE }
@({=~
W^ 5|=J\Lp2I BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
5.*,IedY {
yx|{:Li! BOOL bRemoved=FALSE;
>[Wjzg for(int index=0;index<MAX_KEY;index++){
%S"85#R5E if(hCallWnd[index]==hWnd){
``P9fd if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
Av?R6 hCallWnd[index]=NULL;
*/l;e<E HotKey[index]=0;
w|6/ i/X HotKeyMask[index]=0;
"p*'HQ bRemoved=TRUE;
Pmo<t6 KeyCount--;
Q3(ulgl] break;
oX8EY l }
/IG{j} }
1C8xJ 6F }
l'/`2Y1 return bRemoved;
a_V\[V{R= }
vX\9#Hj .whi0~i void VerifyWindow()
4`,7tj {
>7PQOQMW' for(int i=0;i<MAX_KEY;i++){
K^U=" if(hCallWnd
!=NULL){ Sz@z
0'
if(!IsWindow(hCallWnd)){ DH
yv^
hCallWnd=NULL; !9WGZfK+0Y
HotKey=0; 0M"n
HotKeyMask=0; |67Jw2
KeyCount--; 60vmjm Xl
} t\hnnu`Pq
} jel:oy|_
} YD'gyP4
} {KNaJ/:>W
\0x>#ygX
BOOL CHookApp::InitInstance() 1oej<67PdJ
{ {#qUZ z-
AFX_MANAGE_STATE(AfxGetStaticModuleState()); vt{[_L(h
hins=AfxGetInstanceHandle(); "t&=~eOe3
InitHotkey(); ea"X$<s>-
return CWinApp::InitInstance(); 'EiCTl
} 7h}gIm7e"
ud r\\5
int CHookApp::ExitInstance() ?"mZb#%
{ x*7A33@i
VerifyWindow(); dGYR
'x
UnInit(); XnZ$%?$
return CWinApp::ExitInstance(); Qc3d<{7\~
} {&,p<5o
Gu*y7I8
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file 5_aj]"x
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) J:N(U0U
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ iz# R)EB/g
#if _MSC_VER > 1000 fA6IW(_bi
#pragma once &T,|?0>~=J
#endif // _MSC_VER > 1000 y>y2,x+[
\R<MQ#
x
class CCaptureDlg : public CDialog ]ub"OsXC
{ N l@G\_
// Construction YCD|lL#
public: ->b5"{t
BOOL bTray; '#f<wfn
BOOL bRegistered; $&as5z8
BOOL RegisterHotkey(); x"Ky_P~
UCHAR cKey; H%O\4V2s
UCHAR cMask; d/7R}n^
void DeleteIcon(); <?KPyg2
void AddIcon(); ~#sD2b`0
UINT nCount; LS[o7 !T(
void SaveBmp(); jw:z2:0~
CCaptureDlg(CWnd* pParent = NULL); // standard constructor PY5 &Fwjc
// Dialog Data :hZM$4
//{{AFX_DATA(CCaptureDlg) IE`3I#v
enum { IDD = IDD_CAPTURE_DIALOG }; XPX?+W=mv
CComboBox m_Key; Mk}T
BOOL m_bControl; Hh1_zd|
BOOL m_bAlt; [<#jK}g
BOOL m_bShift; -Q n-w3~&
CString m_Path; !q2zuxq!R
CString m_Number; \jiE:Qt
//}}AFX_DATA e'K~WNT
// ClassWizard generated virtual function overrides g{Hgs
//{{AFX_VIRTUAL(CCaptureDlg) )q=F_:$
public: "U}kp#)
virtual BOOL PreTranslateMessage(MSG* pMsg); vha9,5_
protected: lp
*GJP]T
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support |T|m5V'l
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); `9^tuR,
//}}AFX_VIRTUAL Z~J]I|R:
// Implementation -!PJHCLd
protected: =-2~>B
HICON m_hIcon; ;ek*2Lh
// Generated message map functions 1CB&z@
//{{AFX_MSG(CCaptureDlg) FgH7YkKrD
virtual BOOL OnInitDialog(); l{[@Ahb}?
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); gK rUv0&F
afx_msg void OnPaint(); 7_I83$p'
afx_msg HCURSOR OnQueryDragIcon(); pa!BJ]~
virtual void OnCancel(); j9+4},>>CU
afx_msg void OnAbout(); TPN+jK
afx_msg void OnBrowse(); KnG7w^
afx_msg void OnChange(); zS%XmS\
//}}AFX_MSG LCB-ewy#E
DECLARE_MESSAGE_MAP() Ixa0;nxj
}; x"b'Pmw
#endif 7zG
r+Px
g+#awi7
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file JIyS e:p3
#include "stdafx.h" Y}ogwg&
#include "Capture.h" pQiC#4b
#include "CaptureDlg.h" @"7S$@cO
#include <windowsx.h> 8&2+=<Q~
#pragma comment(lib,"hook.lib") {,%&}kd>
#ifdef _DEBUG &D<R;>iI
#define new DEBUG_NEW i\sBey ND"
#undef THIS_FILE P6v ANL-B
static char THIS_FILE[] = __FILE__; ~[%CUc"
#endif n\ "6ol}>E
#define IDM_SHELL WM_USER+1 uVEJV |^/
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); cyl%p$
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); P{o)Ir8Tt
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; 3]*Kz*i
class CAboutDlg : public CDialog 2{=]Pf
{ d>p' A_
public: &aRL}#U
CAboutDlg(); flmQNrC.8
// Dialog Data 4}H+hk8-
//{{AFX_DATA(CAboutDlg) @lN\.O
enum { IDD = IDD_ABOUTBOX }; ]hS:0QE
//}}AFX_DATA E{\CE1*
// ClassWizard generated virtual function overrides '[#y|
//{{AFX_VIRTUAL(CAboutDlg) h3@tZL#g
protected: s47R,K$
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support EZ<:>V-_D
//}}AFX_VIRTUAL >PA*L(Dh%
// Implementation &s".hP6
protected: 23?u_?+4i
//{{AFX_MSG(CAboutDlg) q/b+V)V
//}}AFX_MSG e8vy29\S
DECLARE_MESSAGE_MAP() *)E${\1' <
}; z8X7Y
>+SA
[^"*I.Z_
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) t.(
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{ gy.UTAs
N
//{{AFX_DATA_INIT(CAboutDlg) T~E;@weR
//}}AFX_DATA_INIT m!xvWqY+
} 30sJ"hF9
AX v
q~XE
void CAboutDlg::DoDataExchange(CDataExchange* pDX) MH.+pqIv^
{ t(3f} ?
CDialog::DoDataExchange(pDX); Q4cCg7|0
//{{AFX_DATA_MAP(CAboutDlg) ogFo/TKM
//}}AFX_DATA_MAP vqeH<$WHvy
} j=O+U_w
c]M+|R5
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) lAN&d;NU6Z
//{{AFX_MSG_MAP(CAboutDlg) X~r9yl>
// No message handlers C!+D]7\j
//}}AFX_MSG_MAP x {NBhq(4
END_MESSAGE_MAP() ;U(]#pW!t
lq9|tt6Z
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) _m9k2[N!
: CDialog(CCaptureDlg::IDD, pParent) (,I:m[0
{ @6"MhF
//{{AFX_DATA_INIT(CCaptureDlg) ?,$:~O*w
m_bControl = FALSE; N?qETp -:
m_bAlt = FALSE; rnK]3Ust
m_bShift = FALSE; 0T`Qoo>u
m_Path = _T("c:\\"); *ak0(yLn)
m_Number = _T("0 picture captured."); M+&~sX*a
nCount=0; |XB<vj07G
bRegistered=FALSE; 8w:ay,=
bTray=FALSE; J,W$\V]p
//}}AFX_DATA_INIT R[m-jUL
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 c[-N A
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); pb97S^K[
} 4#(/{6J
VZqCFE3
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) h ;uzbu
{ |5vJ:'` I
CDialog::DoDataExchange(pDX); \aJ>?
//{{AFX_DATA_MAP(CCaptureDlg) ('7?"npd
DDX_Control(pDX, IDC_KEY, m_Key); v`oilsrc
DDX_Check(pDX, IDC_CONTROL, m_bControl); `/WxEu3
DDX_Check(pDX, IDC_ALT, m_bAlt); e`0C0GaP
DDX_Check(pDX, IDC_SHIFT, m_bShift); z-
q.8~Z
DDX_Text(pDX, IDC_PATH, m_Path); iM8Cw/DS
DDX_Text(pDX, IDC_NUMBER, m_Number); ~3s?.[}d
//}}AFX_DATA_MAP ^KbR@Ah
} $ #!oejLD
5mAb9F8@
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) I;@q`Tm
//{{AFX_MSG_MAP(CCaptureDlg) %i\rw*f
ON_WM_SYSCOMMAND() ]2-Qj)mZ]
ON_WM_PAINT() W<q<}RSn
ON_WM_QUERYDRAGICON() N #v[YO`.
ON_BN_CLICKED(ID_ABOUT, OnAbout) #f(a,,Uu'
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) b,Eq-Z;
ON_BN_CLICKED(ID_CHANGE, OnChange) QP(d77n
//}}AFX_MSG_MAP c%5P|R~g]p
END_MESSAGE_MAP() &~eCDlX/
L$Z!
BOOL CCaptureDlg::OnInitDialog() _!2lnJ4+5
{ _7N?R0j^9N
CDialog::OnInitDialog(); f8-`bb
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); uV gA <*0
ASSERT(IDM_ABOUTBOX < 0xF000); B\
'rxbH
CMenu* pSysMenu = GetSystemMenu(FALSE); UG.:D';3,
if (pSysMenu != NULL) $x }R2
{ rZ,qHM
CString strAboutMenu; /[ m7~B]QE
strAboutMenu.LoadString(IDS_ABOUTBOX); -$!r+4|q
if (!strAboutMenu.IsEmpty()) uyEk1)HC
{ q2#Ebw%]
pSysMenu->AppendMenu(MF_SEPARATOR); ~0CNCP
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); r~=+>,
_
} Sck!w 3
} DvhFCA}z
SetIcon(m_hIcon, TRUE); // Set big icon {#+K+!SvDX
SetIcon(m_hIcon, FALSE); // Set small icon !43nL[]
m_Key.SetCurSel(0); #TUm&2 +V
RegisterHotkey(); w5q6c%VZ
CMenu* pMenu=GetSystemMenu(FALSE); Yjo$vQi
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); pej-W/R&
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); VP< zOk7
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); ,w "cY?~<
return TRUE; // return TRUE unless you set the focus to a control
C2LG@iCIE
} $Ud9v 4
V@+sNM
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) >CG;df<~
{ x=0Ak'1M
if ((nID & 0xFFF0) == IDM_ABOUTBOX) &K!0yR
{ \>su97
CAboutDlg dlgAbout; 3K(/=
dlgAbout.DoModal(); ]l }v
} 5<X"+`=9
else W\Il@Je;
{ %D-!<)z
CDialog::OnSysCommand(nID, lParam); Wv3p!zW3I
} ^Zpz@T>m
} "/O07l1Q<
Bph(\=
W
void CCaptureDlg::OnPaint() <> HI(6\@Z
{ F6{
O
if (IsIconic()) lx$Z/f
{ "pX|?ap
CPaintDC dc(this); // device context for painting &%3}'&EBv
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); 11S{XbU
// Center icon in client rectangle `-s]dq
int cxIcon = GetSystemMetrics(SM_CXICON); kFQo[O]
int cyIcon = GetSystemMetrics(SM_CYICON); %N\45nYU:
CRect rect; m k~F@
GetClientRect(&rect); {'P?wv
int x = (rect.Width() - cxIcon + 1) / 2; &iuMB0rbu
int y = (rect.Height() - cyIcon + 1) / 2; Ai%Wt-
// Draw the icon 0<-A2O),
dc.DrawIcon(x, y, m_hIcon); MR,>]|
^
} (CAVOed
else =f=>buD
{ f U<<GK70
CDialog::OnPaint(); 9;gy38.3
} }uD*\.
} Hm 0;[i
CW@EQ3y0
HCURSOR CCaptureDlg::OnQueryDragIcon() <@>icDFEHn
{ z/o&r`no
return (HCURSOR) m_hIcon; 2zsDb'r
} 3cqc<
7CU<R9Kl
void CCaptureDlg::OnCancel() fsKZ
{ 41C6ey
if(bTray) Rs]Y/9F;{
DeleteIcon(); ],<pZ1V;
CDialog::OnCancel(); G`v(4`tA
} 74Aecb{
2Zq_zvKUt
void CCaptureDlg::OnAbout() WD8F]+2O\
{ <7%#RJw e
CAboutDlg dlg; 0;5qo~1
dlg.DoModal(); cW{ Bsr
} ,PWMl[X
`cmzmQC
void CCaptureDlg::OnBrowse() w`Cs,
{ St3/mDtH
CString str; R4f_Kio
BROWSEINFO bi; 9Kc;]2m
char name[MAX_PATH]; ?Ql<s8
ZeroMemory(&bi,sizeof(BROWSEINFO)); z}$!B.)
bi.hwndOwner=GetSafeHwnd(); D<4cpH
bi.pszDisplayName=name; cS|W&IH1
bi.lpszTitle="Select folder"; J.,7d ,
bi.ulFlags=BIF_RETURNONLYFSDIRS; M;X}v#l|XI
LPITEMIDLIST idl=SHBrowseForFolder(&bi); 7@!ne&8Z?
if(idl==NULL) -
[vH4~
return; #"JtH"pF
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); OYIH**?
str.ReleaseBuffer(); KFHcHz
m_Path=str; u$V@akk
if(str.GetAt(str.GetLength()-1)!='\\') 4V
5
m_Path+="\\"; Y7@$#/1
UpdateData(FALSE); tb'O:/
} ^' b[#DG>F
m@c\<-P
void CCaptureDlg::SaveBmp() 4q`e<!MP)q
{ V53iWWaFe
CDC dc; }ILg_>uq[
dc.CreateDC("DISPLAY",NULL,NULL,NULL); 7,D6RP(b
CBitmap bm; ,uhOf! |
int Width=GetSystemMetrics(SM_CXSCREEN); pM_oIH'8:
int Height=GetSystemMetrics(SM_CYSCREEN); Cq%1j[
bm.CreateCompatibleBitmap(&dc,Width,Height); cY%6+uJ1
CDC tdc; ":Ll.=!
tdc.CreateCompatibleDC(&dc); "D/\&1.&
CBitmap*pOld=tdc.SelectObject(&bm); b~EA&dc
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); sy+tLDMd
tdc.SelectObject(pOld); aL0,=g%
BITMAP btm; {$qLMx';
bm.GetBitmap(&btm); QR{pph*zn-
DWORD size=btm.bmWidthBytes*btm.bmHeight; s% (|z
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); &/]g@^h9
BITMAPINFOHEADER bih; 6nHyd<o
bih.biBitCount=btm.bmBitsPixel; {-e|x&-
bih.biClrImportant=0; @6z]Xb
bih.biClrUsed=0; 5(&'/U^
bih.biCompression=0; M@78.lPS
bih.biHeight=btm.bmHeight; YhFd0A?]
bih.biPlanes=1; u+,
bih.biSize=sizeof(BITMAPINFOHEADER); nv2p&-e+
bih.biSizeImage=size; }E](NvCq
bih.biWidth=btm.bmWidth; .l ufE
bih.biXPelsPerMeter=0; j21nh >d
bih.biYPelsPerMeter=0; )i*- j=
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); {G4{4D }
static int filecount=0; -}Q^A_xK
CString name; ).9m6.%Uk
name.Format("pict%04d.bmp",filecount++); $Z{Xt*
name=m_Path+name; pv ;ZR
BITMAPFILEHEADER bfh; )l"py9STF
bfh.bfReserved1=bfh.bfReserved2=0; ,5HC&@
bfh.bfType=((WORD)('M'<< 8)|'B'); UU"'
bfh.bfSize=54+size; }
cQ`L
bfh.bfOffBits=54;
*B1%-
CFile bf; z~O:w'(g
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ 3zuYN-;
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); S{F'k;x/5
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); kB $?A8Olu
bf.WriteHuge(lpData,size); b1ma(8{{{
bf.Close(); cfA)Ui
nCount++; }D\i1/Y
} E|l qlS7
GlobalFreePtr(lpData); ,"EgYd8-'
if(nCount==1) ?0k4l8R
m_Number.Format("%d picture captured.",nCount); T?V!%AqY:
else EHqcQx`K_
m_Number.Format("%d pictures captured.",nCount); Fl0 :Z
UpdateData(FALSE); nN$aZSb`
} \zGmZZ
Q/<