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:
mya_4I
m
kXf'5p1 一、实现方法
lBaR -]QD|w3dp 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:
1;{Rhu7*
k qTqwPWW* #pragma data_seg("shareddata")
rYbpih=x HHOOK hHook =NULL; //钩子句柄
*NG+L)g UINT nHookCount =0; //挂接的程序数目
^Y'HaneoM static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
Z:*76PP, static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
jrS[f static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
.,OVzW static int KeyCount =0;
!1ED~3/X static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
{HCzp,Y #pragma data_seg()
v61[.oS #Y4=J
6 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。
} q$ WvY/ xftBSdVE 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:
|6$p;Aar 2K3{hxB BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
w'UVKpG+ cKey,UCHAR cMask)
#Jw1IcuH {
Jl&-,Vjb BOOL bAdded=FALSE;
7:2WgLo for(int index=0;index<MAX_KEY;index++){
43@{JK9G if(hCallWnd[index]==0){
sNLs\4v hCallWnd[index]=hWnd;
h]TQn)X] HotKey[index]=cKey;
Vb= Mg HotKeyMask[index]=cMask;
Gy6l<:; bAdded=TRUE;
zaK#Z?V} KeyCount++;
fe9LEM8j break;
;9c<K }
v^1pN>#%g }
lhBT@5Dm9 return bAdded;
=,UWX3`f }
K[!&b0O //删除热键
y$_eCmq BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
RE/~#k@a {
e=+?K5q{P( BOOL bRemoved=FALSE;
28UU60 for(int index=0;index<MAX_KEY;index++){
TL}++e
7+ if(hCallWnd[index]==hWnd){
)3>hhuaa if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
lp(8E6 hCallWnd[index]=NULL;
H{=21\a\ HotKey[index]=0;
Bq$rf < W HotKeyMask[index]=0;
&FF"nE* bRemoved=TRUE;
\Ol kM< KeyCount--;
9R7A8 break;
n:{qC{D-qS }
*tK\R&4,4s }
Z)SY.iK. }
T Kg aV;92 return bRemoved;
,uSQNre\j }
*U
P@9D _N{RVeO u[DfzH DLL中的钩子函数如下:
QmCe>+ Ljp%CI[i LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
C<m{*C-`a {
.P7"e5ge BOOL bProcessed=FALSE;
(A~/ '0/ if(HC_ACTION==nCode)
Z2'Bk2 L {
1$p2}Bf{n if((lParam&0xc0000000)==0xc0000000){// 有键松开
Q|D @Yd\ switch(wParam)
IVAmV!.z {
=AEBeiz case VK_MENU:
?B}{GL2) MaskBits&=~ALTBIT;
$h*L=t( break;
/#m=*&!CB case VK_CONTROL:
&L,nqc\3D5 MaskBits&=~CTRLBIT;
O8j_0 break;
)'6DNa[y case VK_SHIFT:
t+1 %RyKFB MaskBits&=~SHIFTBIT;
TjwBv6h break;
^$'z!+QRM default: //judge the key and send message
p IU&^yX> break;
.ZJRO>S }
k[:bQ)H for(int index=0;index<MAX_KEY;index++){
<U!`J[n% if(hCallWnd[index]==NULL)
&GB:|I'%7 continue;
L 8dc(Z%v if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
-6n K<e` {
,I%g|'2 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
+i@y@<l:+ bProcessed=TRUE;
4 Dw@r{ }
mg$]QnbAnH }
`CgaS# }
P dhEQ}H else if((lParam&0xc000ffff)==1){ //有键按下
n8" .XS switch(wParam)
>VN5`Zlw\C {
'>' wK. case VK_MENU:
5sx1Zq7 MaskBits|=ALTBIT;
vM*($qpAy break;
q@nP}Pv&5 case VK_CONTROL:
~e+\k>^eN MaskBits|=CTRLBIT;
>U]C/P[+ break;
(3{YM( case VK_SHIFT:
to=y#$_ MaskBits|=SHIFTBIT;
a*ushB break;
{O7X`'[ default: //judge the key and send message
%\H|B0 break;
`m!j$,c. }
_U
|>b> for(int index=0;index<MAX_KEY;index++){
o .qf _A if(hCallWnd[index]==NULL)
oBzfbg8p continue;
H\:lxR^ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
|Y [wzDYV {
7 D^gMN%p SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
[`c^4E bProcessed=TRUE;
JAQb{KefdO }
@M5#S7q"; }
9+{G8$Ai }
S=e{MI if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
uoX:^'q
for(int index=0;index<MAX_KEY;index++){
EB2!Hp uQ3 if(hCallWnd[index]==NULL)
-wSg2'b4E continue;
1>E<8&2[L if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
ZRg;/sX] SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
SVB \ //lParam的意义可看MSDN中WM_KEYDOWN部分
~,5gUl?Il }
b/{t|io{ }
.[3Z1v, }
zY('t!u8 return CallNextHookEx( hHook, nCode, wParam, lParam );
WqXbI4;pJ }
H=Y{rq @ /eOzXCSws 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
E~gyy]8& 4bw4cqY; BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
VI'hb'2 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
&'}/f5s| >V*mr{/1 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
l33Pm/V2? O^^C;U@U<1 LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
qpE&go=k' {
5Drq9B9; if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
6T#+V37 {
-Ty*aov //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
D~$r\]av SaveBmp();
al9t^ return FALSE;
NH<5*I/ }
_q{c##Kf …… //其它处理及默认处理
Ko&>C_N }
=yyp?WmC8 Bb}fj28 A3iFI9Iv 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。
}`,t$NV` h?;T7|^ 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。
TG+VEL |T Ndcg/d 二、编程步骤
:X]itTrGs kMt 8/ E` 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";
bj"J' :kf`?u 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
?)1{)Erf8x GP:77)b5 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;
R5 9S@MsuD 30.@g[~ 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;
By9*1H2R -QmO1U 5、 添加代码,编译运行程序。
Q&eQQ6b^Ih M #=]
k 三、程序代码
A3S<..g2 ~;&m*2
|V ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
@Q/-s9b #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
82QGS$0V #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
/(BMG/Tb #if _MSC_VER > 1000
q~vDz]\G #pragma once
nC}6B).el #endif // _MSC_VER > 1000
_Gjk;|Sx<I #ifndef __AFXWIN_H__
$a"n1ou #error include 'stdafx.h' before including this file for PCH
s+EAB{w$ #endif
Gmq/3tw #include "resource.h" // main symbols
m$W < class CHookApp : public CWinApp
S!3S4:]B^ {
`P8Vh+7u public:
!H irhDN CHookApp();
0 rXx RQ // Overrides
[5MJwRM^!; // ClassWizard generated virtual function overrides
P5#r,:zL //{{AFX_VIRTUAL(CHookApp)
F>-B3x public:
.G)(0z("s virtual BOOL InitInstance();
-:Ia^{YN virtual int ExitInstance();
'=G|Sq^aO //}}AFX_VIRTUAL
f/Hm{<BY
//{{AFX_MSG(CHookApp)
0;:.B
j // NOTE - the ClassWizard will add and remove member functions here.
Wr3mQU // DO NOT EDIT what you see in these blocks of generated code !
[I$BmGQ //}}AFX_MSG
u*tN)f3 DECLARE_MESSAGE_MAP()
:SGF45>B@ };
9lW;Nk*j: LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
Eg2[k.{P BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
ae0>
W BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
RQ'H$r.7g BOOL InitHotkey();
'F_8j; BOOL UnInit();
X(\fN[; #endif
weE/TW\e <Gt2(; //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
o(r\E0I #include "stdafx.h"
R&Jm
+3N #include "hook.h"
CO2C{~Q5 #include <windowsx.h>
]zQo>W$ #ifdef _DEBUG
w[!^;# #define new DEBUG_NEW
+tk{"s^r* #undef THIS_FILE
.$%Soyr?, static char THIS_FILE[] = __FILE__;
4)"n
RjGg #endif
}f8Uc+ #define MAX_KEY 100
u#V5?i #define CTRLBIT 0x04
`>?ra- #define ALTBIT 0x02
{
Q`QX`# #define SHIFTBIT 0x01
f3H ed #pragma data_seg("shareddata")
Ju3*lk/j- HHOOK hHook =NULL;
OV%Q3$15 UINT nHookCount =0;
O km{Xx static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
C_n9T{k static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
2;^y4ssg static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
Nv/v$Z{k static int KeyCount =0;
y7$iOR static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
6C-/`>m #pragma data_seg()
m"fNK$_d HINSTANCE hins;
E !a|Xp void VerifyWindow();
\yd
s5g!: BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
yfx7{naKC` //{{AFX_MSG_MAP(CHookApp)
e|p$d:#! // NOTE - the ClassWizard will add and remove mapping macros here.
USVqB\# // DO NOT EDIT what you see in these blocks of generated code!
KTn}w:+B\ //}}AFX_MSG_MAP
mN>h5G>a END_MESSAGE_MAP()
~d%Pnw| FFH_d <q CHookApp::CHookApp()
NDs!a {
niqN{ // TODO: add construction code here,
q@@T]V6 // Place all significant initialization in InitInstance
6q]5Es< }
72X0Tq 4 0qo)."V{ CHookApp theApp;
T.We: ,{ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
v|Yh w {
&g.+V/<[ BOOL bProcessed=FALSE;
L. EiO({W if(HC_ACTION==nCode)
VA9Gb9 {
e#Z$o($t if((lParam&0xc0000000)==0xc0000000){// Key up
( @3\`\X switch(wParam)
mdq;R*` {
r; xLP case VK_MENU:
{.De4]ANh MaskBits&=~ALTBIT;
CMCO}# break;
"bm case VK_CONTROL:
r4QxoaM MaskBits&=~CTRLBIT;
$zyIuJN# break;
Rhe Re case VK_SHIFT:
@~#Ym1{W MaskBits&=~SHIFTBIT;
ooV3gj4 break;
7hi"6, default: //judge the key and send message
>2Jdq break;
+=mkCU }
Y;e,Gq` for(int index=0;index<MAX_KEY;index++){
sz)oZPu| if(hCallWnd[index]==NULL)
']>Mp#j continue;
E6,4RuCK if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Z0*ljT5| {
<6fv1d+v SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
* 0|IXGr bProcessed=TRUE;
L}FOjrN }
HS.^y
x }
FP>)&3>_ }
.'rW.'Ft else if((lParam&0xc000ffff)==1){ //Key down
?@6/E<-Z$
switch(wParam)
3Te^ {
9:!gI|C case VK_MENU:
Z-U-N MaskBits|=ALTBIT;
'2laTl]` break;
GN0`rEh case VK_CONTROL:
A5H3%o(6k MaskBits|=CTRLBIT;
#fL8Kq break;
\igmv]G% case VK_SHIFT:
G
<uyin> MaskBits|=SHIFTBIT;
GQl$yZaK{ break;
+8#_59;x default: //judge the key and send message
;?6No(/ break;
r} P<iX }
c1_5, 1U' for(int index=0;index<MAX_KEY;index++)
;]w<&C!= {
Udc=,yo3Qm if(hCallWnd[index]==NULL)
q~59F@ continue;
%uoQ9lD' if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
X5khCLHi {
fnNYX]_bk SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
T`9u!#mT= bProcessed=TRUE;
VL/|tL>E^ }
mCWhUBghR }
BA:yQ }
2PeR if(!bProcessed){
E^rbcGJ for(int index=0;index<MAX_KEY;index++){
=Me5ftw if(hCallWnd[index]==NULL)
sj8~?O continue;
Ht-t1q if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
w~;I7: SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
eh ,~F }
H> '>3]G }
Hzhceeh_+ }
e+]6OV&+ return CallNextHookEx( hHook, nCode, wParam, lParam );
m "M("% }
ncX/L[L Kv rX{F= BOOL InitHotkey()
cPl`2&p {
1tJg#/? if(hHook!=NULL){
uU> wg*m nHookCount++;
A#W?2k9 return TRUE;
g1UGd }
UDe |Sb else
Bcjx>#3?L hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
`xc^_781\ if(hHook!=NULL)
7]BW[~77 nHookCount++;
`- \/$M9s= return (hHook!=NULL);
Hi
yc#-4 }
Lj"A4i_ BOOL UnInit()
;=9
>MS} {
}HG#s4 if(nHookCount>1){
"ywh9cp nHookCount--;
iz~
pGkt return TRUE;
Yyfq }
g!`3{
/4 BOOL unhooked = UnhookWindowsHookEx(hHook);
AWjm~D-? if(unhooked==TRUE){
oM)h#8bq nHookCount=0;
bO;(bE m@ hHook=NULL;
yg2uC(2 }
"GQl~ return unhooked;
WnHUE }
Y];Ycj; qTB$`f'|$ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
HJC(\\~ {
=rd|0K"(r BOOL bAdded=FALSE;
4#(ZNP for(int index=0;index<MAX_KEY;index++){
9~0^PzTA if(hCallWnd[index]==0){
;ml
3 hCallWnd[index]=hWnd;
yE\wj HotKey[index]=cKey;
pCu!l#J HotKeyMask[index]=cMask;
8*c3| bAdded=TRUE;
YxGcFjJ KeyCount++;
Otz E:qe break;
lg}HGG }
+xXH2b$wWC }
tj*y)28- return bAdded;
;oNhEB:F }
E_1="&p TS"D]Txs BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
EQe5JFR {
]}mxY
vu_i BOOL bRemoved=FALSE;
GI7=xh for(int index=0;index<MAX_KEY;index++){
'>k{tPi. if(hCallWnd[index]==hWnd){
Dw2Q 'E if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
npDIX hCallWnd[index]=NULL;
zD)pF1,7:8 HotKey[index]=0;
==H$zmK HotKeyMask[index]=0;
ZCVl5R(mZ bRemoved=TRUE;
#u5~0,F KeyCount--;
a1.|X i'/z break;
8CC/ BOe }
,SScf98,j }
u=&Bmn_ }
-z:&*= return bRemoved;
Kv{8iAB#c }
9]>iSG^H D\~e&0* void VerifyWindow()
o\`>c:. {
+zkm( for(int i=0;i<MAX_KEY;i++){
gr-x|wK if(hCallWnd
!=NULL){ {C^@Q"I
if(!IsWindow(hCallWnd)){ FZH\Q~IUV
hCallWnd=NULL; Bd3~E bFL
HotKey=0; xAwf49N~
HotKeyMask=0; [`Cq\mI-W
KeyCount--; 6e25V4e?I
} eV6o3u:9
} Hwm?#6\5
} jko"MfJ
} p{=QGrxB*
cE{ =(OQ
BOOL CHookApp::InitInstance() M]HgIL@9#
{ 6<5Jq\-h
AFX_MANAGE_STATE(AfxGetStaticModuleState()); &,i~ cG?
hins=AfxGetInstanceHandle(); oh#>
5cA8
InitHotkey(); Ze!92g
return CWinApp::InitInstance(); [rreFSy#@
} h7;bclU
]$M<]w,IJ2
int CHookApp::ExitInstance() cUK\x2
{ bO<0qM~
VerifyWindow(); S^cH}-+
UnInit(); }wSy
return CWinApp::ExitInstance(); HhkN^S,
} D6Y6^eS-
M0-,M/]l
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file z]Acs
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) ~E=\t9r
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ D22Lu;E
#if _MSC_VER > 1000 ., :uZyG
#pragma once j1$<] f
#endif // _MSC_VER > 1000 )Hf~d=GG
>WM3|
class CCaptureDlg : public CDialog .}9FEn 8
{ nd+?O7~}(
// Construction }`9`JmNM
public: C$#W{2x%6
BOOL bTray; \~X&o% y
BOOL bRegistered; -{9Gagy2&
BOOL RegisterHotkey(); |,}E0G.
UCHAR cKey; &-GuKH(Y<
UCHAR cMask; (G4'(6
void DeleteIcon(); dALK0U
void AddIcon(); 4VIg>EL*
UINT nCount; b
Dg9P^<n
void SaveBmp(); G^Xd- 7 GQ
CCaptureDlg(CWnd* pParent = NULL); // standard constructor P Tnac
// Dialog Data M^H90GN)X
//{{AFX_DATA(CCaptureDlg) 3:|-#F*k{
enum { IDD = IDD_CAPTURE_DIALOG }; ]@SU4
CComboBox m_Key; ]0D9N"
BOOL m_bControl; u fw cF*
BOOL m_bAlt; W3LP
~
BOOL m_bShift; D{AFL.r{
CString m_Path; 4YJ=q% G
CString m_Number; /#yA%0=w
//}}AFX_DATA :HW>9nD.
// ClassWizard generated virtual function overrides WF/l7u#4i
//{{AFX_VIRTUAL(CCaptureDlg) kUHie
public: _
K/swT{f
virtual BOOL PreTranslateMessage(MSG* pMsg); O}gX{_|6
protected: 8Z:Ezg3^
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 3
Lje<KzL
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); ^'B-sz{{
//}}AFX_VIRTUAL u3Do~RyL[
// Implementation 7C5pAb:
protected: X&\o{w9%
HICON m_hIcon; id?_>9@P
// Generated message map functions 4uX(_5#j
//{{AFX_MSG(CCaptureDlg) f[qPG&
virtual BOOL OnInitDialog(); ypA: P
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); EDN(eh(_
afx_msg void OnPaint(); +{6`F1MO
afx_msg HCURSOR OnQueryDragIcon(); nC~fvyd<P
virtual void OnCancel(); :l~E E!
afx_msg void OnAbout(); ~|R[O^9B
afx_msg void OnBrowse(); >I-g[*
afx_msg void OnChange(); S\|^ULrH
//}}AFX_MSG C6)R#
DECLARE_MESSAGE_MAP() a9[< ^
}; ~JE|f 7
#endif 79z)C35~
>Zdi5')
5
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file ~Oh=
#include "stdafx.h" [EGx
#include "Capture.h" l<2oklo5
#include "CaptureDlg.h" XOxB
(0@
#include <windowsx.h> q2!'==h2i
#pragma comment(lib,"hook.lib") dwp:iM
#ifdef _DEBUG )nnCCRS6
#define new DEBUG_NEW L*O>IQh2
#undef THIS_FILE qG^_c;l6a
static char THIS_FILE[] = __FILE__; k6J\Kkk(
#endif +=,u jO:
#define IDM_SHELL WM_USER+1 OMd# ^z
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); =yh3Nd:u
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); ( 2zeG`
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; &A"e,h(^
class CAboutDlg : public CDialog p1
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{ .Qfnd#
public: tzNaw %\
CAboutDlg(); t {=i=K3
// Dialog Data M@~o6 ^
//{{AFX_DATA(CAboutDlg) 7O461$4v
enum { IDD = IDD_ABOUTBOX }; =z-5
//}}AFX_DATA
0dh#/
// ClassWizard generated virtual function overrides A|C_np^z2
//{{AFX_VIRTUAL(CAboutDlg) M*H<
n*
protected: E&9!1!B
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support leIy|K>\m
//}}AFX_VIRTUAL a hwy_\
// Implementation XSl!T/d
protected: "<*nZ~nE)
//{{AFX_MSG(CAboutDlg) 8;8YA1@w
//}}AFX_MSG {,F/KL^u
DECLARE_MESSAGE_MAP() +',^((o
}; `x4E;Wjv
lO_c/o$
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) :Q=z=`*2w
{ Q,n4i@E
//{{AFX_DATA_INIT(CAboutDlg) *pK lA&_
//}}AFX_DATA_INIT zS?n>ElI
} #~1wv^
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void CAboutDlg::DoDataExchange(CDataExchange* pDX) 2R] XH
0
{ YnD#p[Wo^
CDialog::DoDataExchange(pDX); *) }
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//{{AFX_DATA_MAP(CAboutDlg) bHJoEYY^
//}}AFX_DATA_MAP m8u=u4z("
} L^jaBl
Dh?vU~v(6
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) blmmm(|~|
//{{AFX_MSG_MAP(CAboutDlg) 9H[/T j-;
// No message handlers )"F5lOA6
//}}AFX_MSG_MAP K{N%kk%F
END_MESSAGE_MAP() pEkOSG
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CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) +h|K[=l\
: CDialog(CCaptureDlg::IDD, pParent) ]DU61Z"v?b
{ S{ey@X(
//{{AFX_DATA_INIT(CCaptureDlg) :Dt\:`(r'
m_bControl = FALSE; fZ{&dslg
m_bAlt = FALSE; mHHzCKE ,
m_bShift = FALSE; aSTFcz"
m_Path = _T("c:\\"); Ny B&uf
m_Number = _T("0 picture captured."); y]J3hKs
nCount=0; hMz&JJ&B
bRegistered=FALSE; ) (+)Q'*
bTray=FALSE; }R`Irxv4
//}}AFX_DATA_INIT -$OD }5ku#
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 6QW<RXom
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); ,b:n1
} {:3.27jQ
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void CCaptureDlg::DoDataExchange(CDataExchange* pDX) n'ehB%"
{ XL&hs+Y
CDialog::DoDataExchange(pDX); 5pB^Y MP
//{{AFX_DATA_MAP(CCaptureDlg) Vj/fAHR`>'
DDX_Control(pDX, IDC_KEY, m_Key); ^W5>i[
DDX_Check(pDX, IDC_CONTROL, m_bControl); X:R%1+&*
DDX_Check(pDX, IDC_ALT, m_bAlt); {vLTeIxf.G
DDX_Check(pDX, IDC_SHIFT, m_bShift); rv`2*B
DDX_Text(pDX, IDC_PATH, m_Path); z^gi[
mi
DDX_Text(pDX, IDC_NUMBER, m_Number); yS+(<
//}}AFX_DATA_MAP ^g-Fg>&M
} )>?! xx_`
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BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) A"0wvk)UcY
//{{AFX_MSG_MAP(CCaptureDlg) J
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ON_WM_SYSCOMMAND() _IC,9bbg
ON_WM_PAINT() 'xQna+ %h
ON_WM_QUERYDRAGICON() jT{f<P0
ON_BN_CLICKED(ID_ABOUT, OnAbout) Lr wINVa
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) wInY7uBd!
ON_BN_CLICKED(ID_CHANGE, OnChange) Is<x31R
//}}AFX_MSG_MAP v3?kFd7%H~
END_MESSAGE_MAP() hTDV!B-_(
m**0rpA
BOOL CCaptureDlg::OnInitDialog() gH5CB%)
{ {3.*7gnY\L
CDialog::OnInitDialog(); |OOXh[y
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); Td5bDO
ASSERT(IDM_ABOUTBOX < 0xF000); ~."!l'a
CMenu* pSysMenu = GetSystemMenu(FALSE); `}[VwQ
if (pSysMenu != NULL) 1 pa*T!
{ nG!&u1*
CString strAboutMenu; KlY,NSlQ
strAboutMenu.LoadString(IDS_ABOUTBOX); g'KzdG`O0
if (!strAboutMenu.IsEmpty()) >'eB2
{ Z+r%_|kZ
pSysMenu->AppendMenu(MF_SEPARATOR); mVa?aWpez
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); _yiRh:
}
.V8/ELr]
} C:rRK*
SetIcon(m_hIcon, TRUE); // Set big icon YW'{|9KnI
SetIcon(m_hIcon, FALSE); // Set small icon t'dHCp}
m_Key.SetCurSel(0); (D0C#<4P
RegisterHotkey(); 3fm;r5
CMenu* pMenu=GetSystemMenu(FALSE); '`9%'f)
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); 3%_
4+zd
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); txj wZ_p
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); -,FK{[h]ka
return TRUE; // return TRUE unless you set the focus to a control 6 #-6Bh)>4
} oSN8Xn*qr
N[0
xqQ
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) a3Z:C!|O'
{ mYiSR
if ((nID & 0xFFF0) == IDM_ABOUTBOX) UaH26fWs
{ _{lx*dq
CAboutDlg dlgAbout; ;,<r|.6U
dlgAbout.DoModal(); ".Lhte R?
} ay=KfY5
else &7$,<9.
{ D/gd
CDialog::OnSysCommand(nID, lParam); kuWK/6l4
} IRlN++I!
} 6e-#XCR{
FYp|oD2=1
void CCaptureDlg::OnPaint() gsLr=
{ ov?.:M
if (IsIconic()) I/^q+l.=`{
{ )w
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CPaintDC dc(this); // device context for painting $?[1#%
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); _= o1?R
// Center icon in client rectangle Ko1AaX(I'+
int cxIcon = GetSystemMetrics(SM_CXICON); Oyi;bb<#
int cyIcon = GetSystemMetrics(SM_CYICON); [B}1z
CRect rect; 7k'=F m6za
GetClientRect(&rect); 3DxZ#/!
int x = (rect.Width() - cxIcon + 1) / 2; 0\?_lT2
int y = (rect.Height() - cyIcon + 1) / 2; 8]sTX9
// Draw the icon `%FIgE^
dc.DrawIcon(x, y, m_hIcon); }V\P,ck
} di8W2cwz
else IUluJ.sXIf
{ QN)/,=#
CDialog::OnPaint(); 8W19#?7>B
} T[i7C3QS
} M,.b`1-w
kb/|;!
HCURSOR CCaptureDlg::OnQueryDragIcon() ybD{4&ZE
{ (! xg$Kz@
return (HCURSOR) m_hIcon; )$ ofl%+
} aEcktg6h
i!CKA}",
void CCaptureDlg::OnCancel() &_<VZS
{ ."~7 \E> t
if(bTray)
80{#bb
DeleteIcon(); eNIkiJ$uS
CDialog::OnCancel(); 2(c<U6#C'l
} @?<N +qdH>
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void CCaptureDlg::OnAbout() tU+@1~
~
{ r!{w93rPX
CAboutDlg dlg; w o-O_uZB
dlg.DoModal(); :)KTZ
} 844tXMtPB\
5en
[)3E
void CCaptureDlg::OnBrowse() '_q: vjX
{ Bxn8><
CString str; OoAr%
BROWSEINFO bi; p?dGZ2` [I
char name[MAX_PATH]; s`8M%ZLu
ZeroMemory(&bi,sizeof(BROWSEINFO)); 7h9 fQ&y
bi.hwndOwner=GetSafeHwnd(); $\YLmG
bi.pszDisplayName=name; !.;xt L
bi.lpszTitle="Select folder"; ,Az`6PW
bi.ulFlags=BIF_RETURNONLYFSDIRS; bR>o!(M'Z\
LPITEMIDLIST idl=SHBrowseForFolder(&bi); 9B!im\]O
if(idl==NULL) 5XSxQG@k^z
return; s
T
:tFK\
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); CX&yjT6`
str.ReleaseBuffer(); |d/x~t=
m_Path=str; <F#*:Re_y
if(str.GetAt(str.GetLength()-1)!='\\') z:ru68
m_Path+="\\"; Y{Y;EY4
UpdateData(FALSE); Z,|1G6f@
} (n":]8}
b*'=W"%\
void CCaptureDlg::SaveBmp() y (c|5CQ
{ /XWPN(JC?
CDC dc; #.\,y>`
dc.CreateDC("DISPLAY",NULL,NULL,NULL); 5C Y@R
CBitmap bm; qrkRD*a
int Width=GetSystemMetrics(SM_CXSCREEN); xY\*L:TwW
int Height=GetSystemMetrics(SM_CYSCREEN); wZ]BY;
bm.CreateCompatibleBitmap(&dc,Width,Height); RS||KA])J
CDC tdc; X YNUss
tdc.CreateCompatibleDC(&dc); xu%!
b0
CBitmap*pOld=tdc.SelectObject(&bm); s{"`=dKT
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); j$|Yd=
tdc.SelectObject(pOld); i">z8?qF
BITMAP btm; `L"p)5H
bm.GetBitmap(&btm); TzevC$m;z
DWORD size=btm.bmWidthBytes*btm.bmHeight; K+h9bI/Sf
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); AjL?Qh4
BITMAPINFOHEADER bih; 9?g]qy,1)
bih.biBitCount=btm.bmBitsPixel; Ew?/@KAV\
bih.biClrImportant=0; c5=v`hv
bih.biClrUsed=0; a!0?L0_W&
bih.biCompression=0; _ pH6uuB
bih.biHeight=btm.bmHeight; NDIc?kj~
bih.biPlanes=1; !dbA (
bih.biSize=sizeof(BITMAPINFOHEADER); ~P]HG;$?n
bih.biSizeImage=size; So)KI_M
bih.biWidth=btm.bmWidth; .kB3jfw0,
bih.biXPelsPerMeter=0; SVg@xu+
bih.biYPelsPerMeter=0; G3_mWppH
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); NqQ(X'W7
static int filecount=0; e&H<lT
CString name; 5&