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:
oM M`7wJw
@GK0j"_ 一、实现方法
/Z94<}C6b nGZZCsf < 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:
%l(qyH)* [?Wt ZM^q #pragma data_seg("shareddata")
GBFYa6\4sT HHOOK hHook =NULL; //钩子句柄
Xk8+m> UINT nHookCount =0; //挂接的程序数目
esIEi!d static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
(:4N#p static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
uK2MC?LP static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
b*\K I static int KeyCount =0;
]<V[H static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
~DPjTR #pragma data_seg()
@bSxT,2 {m.l{<H 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。
$h"tg9L^) ?~Fk_#jz,@ 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:
LJt#c+]Li hOx'uO`x( BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
N0,wT6. cKey,UCHAR cMask)
*/;[ -9 {
]Nz~4ebB BOOL bAdded=FALSE;
MkEr|w' for(int index=0;index<MAX_KEY;index++){
<Wn={1Ts" if(hCallWnd[index]==0){
7F!_gj p hCallWnd[index]=hWnd;
zxTcjC)y HotKey[index]=cKey;
yl0&|Ub HotKeyMask[index]=cMask;
s`B]+ bAdded=TRUE;
!`LaX!bmp KeyCount++;
,]+P#eXgE break;
cah1'Y }
}(4U7Ac }
sKVN*8ia return bAdded;
$!)Sgb }
O0`sg90,C //删除热键
rlEEf/m: BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
OXd617
{
B2w\ BOOL bRemoved=FALSE;
-!f)P=S for(int index=0;index<MAX_KEY;index++){
`xMmo8u4 if(hCallWnd[index]==hWnd){
) jv]Oz if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
=ZR9zL=h hCallWnd[index]=NULL;
=Yg36J4[ HotKey[index]=0;
eKPxSN Z HotKeyMask[index]=0;
z-$ bce9* bRemoved=TRUE;
j6]+fo&3 KeyCount--;
+P:xB0Tm
D break;
YBqu7& }
uLX5khQ }
T[]2]K[&B }
e33 j&:O return bRemoved;
9JYrP6I!_ }
[@fw9@_' 4wk-f7I( GVhO}m DLL中的钩子函数如下:
3z';Zwz &X +LuGjDn0 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
M0zJGIT~b {
ofH=h BOOL bProcessed=FALSE;
PeT _Ty if(HC_ACTION==nCode)
:iqFC >D {
4=!SG4~o if((lParam&0xc0000000)==0xc0000000){// 有键松开
U]jHe switch(wParam)
(N{Rda*8 {
`@1y|j:m case VK_MENU:
lO3W:,3_a MaskBits&=~ALTBIT;
dfl| 6R break;
a$H*C(wL case VK_CONTROL:
D;VQoO MaskBits&=~CTRLBIT;
&/R`\(hEA break;
{\3k(NdEX case VK_SHIFT:
/I&Hq7SW` MaskBits&=~SHIFTBIT;
`B'*ln'r5 break;
$8zsqd 4? default: //judge the key and send message
G|MjKe4} break;
^K*uP^B= }
?@8[1$1a for(int index=0;index<MAX_KEY;index++){
.@KpN*`KH if(hCallWnd[index]==NULL)
hqrI%% continue;
C%_^0#8-0 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Ww-%s9N< {
5{/CqUIl SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
XHU&ix{Od bProcessed=TRUE;
uTgBnv(Y* }
_yk}
[x0> }
{uH
4j4)2 }
Elth xj else if((lParam&0xc000ffff)==1){ //有键按下
FYq]-k{\ switch(wParam)
l,AK {
DY1?37h case VK_MENU:
jyQBx MaskBits|=ALTBIT;
;Yo9e~
break;
/^ *GoB case VK_CONTROL:
3 d
$ MaskBits|=CTRLBIT;
W _j`'WN/ break;
Z)}q=NjA case VK_SHIFT:
#!V
[(/ MaskBits|=SHIFTBIT;
=5=D)x~ break;
:aHD'K default: //judge the key and send message
'D#iT}Vu break;
!9|)v7} }
DE"KbA0} for(int index=0;index<MAX_KEY;index++){
D>"U0*h if(hCallWnd[index]==NULL)
*I,3,zO continue;
`~|8eKFq! if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
pgT XyAP{ {
U7O]g'BP SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
GtI]6t bProcessed=TRUE;
j$r .&,m }
u=^0n2ez }
ER,,K._?B }
eBiP\ if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
l*]9 for(int index=0;index<MAX_KEY;index++){
/LMb~Hy, if(hCallWnd[index]==NULL)
k<W n continue;
0=Jf93D5 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
2_Me
4 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
^ei[#I //lParam的意义可看MSDN中WM_KEYDOWN部分
$__e7 }
qZRx,^gd }
nsR^TD;
}
uV1H iv- return CallNextHookEx( hHook, nCode, wParam, lParam );
V#
Mw }
[P#^nyOh( yH_L<n 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
N!" ]e*q :()(P9? BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
!g:UkU\J BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
mw}obblR [?TQ!l} 8A 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
%4QCUc*lr ONQp-$ LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
KI (9TI* {
7s:`]V% if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
}gi>Z {
!M:m(6E1 //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
#6{"cr6l SaveBmp();
_i [.5 return FALSE;
+js3o@Ku{\ }
INwc@XB …… //其它处理及默认处理
$4.mRS97g }
1lRqjnzve& 6S?a57;&W ^Q8m)0DP 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
n=v4m_e it!i'lG 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
!fdni}f) {#M=gDhbX 二、编程步骤
u:H@]z(x ]RHR> =; 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
PHRc*G{ X'N4a 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
Yjz'lWg wd*i&ooQ*L 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
rC] jz$sle 20 gPx; 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;
U,/NygB~ r$ue1bH}| 5、 添加代码,编译运行程序。
u#=Yv|9 z79L2lJn 三、程序代码
JA7HO| 6 .DJRY ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
g-xbb&] #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
;@K,>$ur- #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
G[u_Uu=> #if _MSC_VER > 1000
*|AnL}GJ #pragma once
bTC2Ya #endif // _MSC_VER > 1000
bj`cYL% #ifndef __AFXWIN_H__
]!H*oP8a* #error include 'stdafx.h' before including this file for PCH
}4xxge?r #endif
THQW8 V #include "resource.h" // main symbols
oMda)5 & class CHookApp : public CWinApp
{B|U8j[ {
S4<@ji public:
|
(P%< CHookApp();
sBp|Lo // Overrides
FsZM_0>/s // ClassWizard generated virtual function overrides
4s*P5w_'/ //{{AFX_VIRTUAL(CHookApp)
Mr:*l`b_ public:
lj%8(X u virtual BOOL InitInstance();
`(aU_r= virtual int ExitInstance();
4,f[D9|: //}}AFX_VIRTUAL
(]j*)~=V //{{AFX_MSG(CHookApp)
n]4)~ZIAU // NOTE - the ClassWizard will add and remove member functions here.
heZ)+}U~ // DO NOT EDIT what you see in these blocks of generated code !
P&| = //}}AFX_MSG
s9'g'O5 DECLARE_MESSAGE_MAP()
DMcvu*A };
xTD6?X'4 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
g2C-)*'{yh BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
3@$h/xMJ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
F']Vg31c BOOL InitHotkey();
8s8q`_.)( BOOL UnInit();
KtY~Y #endif
/@FB;`' 5`oor86 //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
W_8FzXA #include "stdafx.h"
=YA%=
d_ #include "hook.h"
'DsfKR^s #include <windowsx.h>
&0f7>.y #ifdef _DEBUG
2bX!-h #define new DEBUG_NEW
y=9a2[3Dz #undef THIS_FILE
-j3 -H& static char THIS_FILE[] = __FILE__;
L3q)j\ls #endif
"r cPJX #define MAX_KEY 100
<)Kjf/x #define CTRLBIT 0x04
SfJ/(q #define ALTBIT 0x02
_1y|#o #define SHIFTBIT 0x01
2EE/xnwX #pragma data_seg("shareddata")
F)e*w:D HHOOK hHook =NULL;
"+nURdicO UINT nHookCount =0;
l=9& static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
!dhZs?/UI static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
9 K$F.{cx static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
%9mB4Fc6b) static int KeyCount =0;
B>X+eK static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
1sc #!^Oo #pragma data_seg()
9ciL<'H\ HINSTANCE hins;
TOMvJ>bF void VerifyWindow();
|BH,
H BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
8f^URN<x //{{AFX_MSG_MAP(CHookApp)
C==tJog[ // NOTE - the ClassWizard will add and remove mapping macros here.
i04Sf^ // DO NOT EDIT what you see in these blocks of generated code!
JPQ02&e //}}AFX_MSG_MAP
Xki/5roCQ| END_MESSAGE_MAP()
(/"T=`3t .[cT3l/t CHookApp::CHookApp()
Cy6[p {
^0{S!fs // TODO: add construction code here,
m_rR e\ // Place all significant initialization in InitInstance
.e.vh:Sz }
~ezCE4^& V<4)'UI?k9 CHookApp theApp;
fbuop&FN+q LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
r@%32h {
:Yz.Bfli BOOL bProcessed=FALSE;
}T,E$vsx if(HC_ACTION==nCode)
D4#,9?us {
&KR@2~vE if((lParam&0xc0000000)==0xc0000000){// Key up
3pDZ}{ZZU switch(wParam)
CQ,r*VAw {
L$jyeFB5 case VK_MENU:
;SC|VcbyH MaskBits&=~ALTBIT;
DvOg|XUU0 break;
K&|zWpb case VK_CONTROL:
eA4*Be;9e MaskBits&=~CTRLBIT;
k}T~N.0 break;
jHz] case VK_SHIFT:
gP1$#KgU MaskBits&=~SHIFTBIT;
svo^#V~h' break;
;prp6(c default: //judge the key and send message
`}Q;2 F break;
5,Q('t#J }
8#Z$}?W for(int index=0;index<MAX_KEY;index++){
#UWQ (+F if(hCallWnd[index]==NULL)
Q ^ 39Wk@ continue;
IwH
,g^0\ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Be]o2N;J {
GtGToI SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
:cC`wX$ bProcessed=TRUE;
{Z?!*Ow }
z0Zl' }
, JZ@qmQ, }
0]HK(,/h else if((lParam&0xc000ffff)==1){ //Key down
:sA-$*&x switch(wParam)
sg6cq_\ {
,RT\&Ze5 case VK_MENU:
5<a<!]|C MaskBits|=ALTBIT;
IB;y8e, break;
hcf>J6ZLT case VK_CONTROL:
*n[Fl
MaskBits|=CTRLBIT;
[6|8Gx: break;
P2s0H+< case VK_SHIFT:
6kDU}]c:H] MaskBits|=SHIFTBIT;
R6:N`S]&d[ break;
RgRcW5VxK default: //judge the key and send message
0?`#ko7~d break;
z.H`a+cl }
qob!!A14p for(int index=0;index<MAX_KEY;index++)
%##9.Xm6l {
1^W Aps if(hCallWnd[index]==NULL)
Bkz continue;
JGdBpj: if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
9a4RW}S< {
;zJ_apZ:{ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
[R:O'AP}@} bProcessed=TRUE;
ix/uV)]k` }
fsmH];"GD }
!EW]:u }
?PQiVL if(!bProcessed){
0y ;gi3W for(int index=0;index<MAX_KEY;index++){
{MEU|9@
Y if(hCallWnd[index]==NULL)
,`Mlo continue;
b~~}(^Bg if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
0WPxzmY SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
4OIN@n*4 }
8'quQCx*= }
7SM/bJ-M# }
6/n;u{| return CallNextHookEx( hHook, nCode, wParam, lParam );
mcR!P~"i }
4{Ak| pucHB<R@bL BOOL InitHotkey()
V\xQM; {
?nn,RBS- if(hHook!=NULL){
J *B`C^i nHookCount++;
_Ey8P0-I return TRUE;
W UV Q_<i+ }
M<L<mP} else
i@;a%$5 hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
D"WkD j"M if(hHook!=NULL)
v|'N|k l nHookCount++;
{38aaf|'/ return (hHook!=NULL);
.5z|g@
6 }
Zu hT \l BOOL UnInit()
tO0+~Wm {
}hf*Jw
if(nHookCount>1){
G?g7G,|d nHookCount--;
Z:OO|x return TRUE;
KWY G\#S0] }
^49moC- BOOL unhooked = UnhookWindowsHookEx(hHook);
8]L.E if(unhooked==TRUE){
R.QcXz?d nHookCount=0;
?t"PawBWE hHook=NULL;
3HiW1*5W }
lt]U?VZ return unhooked;
QRjt.Ry| }
t2gjhn^p e8# 3Y+Tc BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
%)e+w+ {
*~"`&rM( BOOL bAdded=FALSE;
&ar}6eO for(int index=0;index<MAX_KEY;index++){
g\Zk*5( if(hCallWnd[index]==0){
aD^MoB3 hCallWnd[index]=hWnd;
@88 efF HotKey[index]=cKey;
+Oscy-; HotKeyMask[index]=cMask;
CG7LF bAdded=TRUE;
",+uvJT1O KeyCount++;
93dotuF break;
S.jjB }
!<)_ F }
GwycSb1 return bAdded;
M}<=~/k`j }
+u2Co_FJ& tvUvd(8w BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
4ca-!pI0 {
R;yAqr29 BOOL bRemoved=FALSE;
E6gEP0b for(int index=0;index<MAX_KEY;index++){
*LVM}| f if(hCallWnd[index]==hWnd){
,+RO 5n if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
1L|(:m+ hCallWnd[index]=NULL;
? `KOW HotKey[index]=0;
w;(gi HotKeyMask[index]=0;
{|%O)fr, bRemoved=TRUE;
Dfo9jYPf KeyCount--;
8GP}g?% break;
(
A) wcB }
*J=ol }
gK( 4<PO' }
!O-+h0Z return bRemoved;
@FV;5M:I }
.g~@e_;): a\w|tf void VerifyWindow()
\2,18E {
(AYS>8O& for(int i=0;i<MAX_KEY;i++){
57>ne)51 if(hCallWnd
!=NULL){ U!5*V9T~J
if(!IsWindow(hCallWnd)){ (n/1:'
hCallWnd=NULL; )8SP$
HotKey=0; {+:XVT_+
HotKeyMask=0; &>{>k<z
KeyCount--; sdWl5 "
} :c t+.#
} j1<1D@UO
} VZoOdR:d
} MDPM OA
DO1{r/Ib.{
BOOL CHookApp::InitInstance() nS4S[|w"
{ E2IV R]C2^
AFX_MANAGE_STATE(AfxGetStaticModuleState()); q1Sm#_7
hins=AfxGetInstanceHandle(); }D+8K
InitHotkey(); )mdNvb[*n
return CWinApp::InitInstance(); t]
wM_]+
} m-RY{DO+
Ji[g@#
int CHookApp::ExitInstance() g-FZel
{ Ak Tw?v'
VerifyWindow(); H\mVK!](D
UnInit(); j!\0Fyr
return CWinApp::ExitInstance(); u2]g1XjeG
} #:|?t&On
JZzf,G:
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file hH}/v0_ jb
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) e9_+$Oo
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ 6sl<Z=E#
#if _MSC_VER > 1000 VWy:U#;+8
#pragma once lg>AWTW[
#endif // _MSC_VER > 1000 lM*O+k
2H[aY%1T
class CCaptureDlg : public CDialog =7fh1XnW
{ x Ui!|c
// Construction QJWES%m`
public: 9Oyi:2A
BOOL bTray; ]4mj 1g&C
BOOL bRegistered; ->I{
:#
BOOL RegisterHotkey(); I%919
UCHAR cKey; 3 ?F@jEQk
UCHAR cMask; >-lL-%N_
void DeleteIcon(); q&Wwtqc9
void AddIcon(); !h>$bm
UINT nCount; p,\bez
void SaveBmp(); {K4t8T]
CCaptureDlg(CWnd* pParent = NULL); // standard constructor [E
(M(w':
// Dialog Data X-#mv|3
//{{AFX_DATA(CCaptureDlg) JK"uj%
enum { IDD = IDD_CAPTURE_DIALOG }; .oj" ru
CComboBox m_Key; 43=-pyp
BOOL m_bControl; ?]D+H%3[$i
BOOL m_bAlt; o%PoSZZ
BOOL m_bShift; Z4ov
CString m_Path; So%1RY{)
CString m_Number; Z'dI!8(Nf
//}}AFX_DATA r/sRXM:3cZ
// ClassWizard generated virtual function overrides Ko|xEz=
//{{AFX_VIRTUAL(CCaptureDlg) OW}j4-~wL
public: oy
bzD
virtual BOOL PreTranslateMessage(MSG* pMsg); ( L\G!pP.
protected: s4`*0_n
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support |/=p
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); Q
EGanpz
//}}AFX_VIRTUAL 9c}]:3#XO
// Implementation ?>jArzI
protected: jQeE07g
HICON m_hIcon; B9)qv>m
// Generated message map functions 1=5'R/k
//{{AFX_MSG(CCaptureDlg) ((>3,%B`
virtual BOOL OnInitDialog(); vKf;&`^qE
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); GnrW{o
afx_msg void OnPaint(); zw0 r
i6
afx_msg HCURSOR OnQueryDragIcon(); W#7-%oT
virtual void OnCancel(); ;:\,x
afx_msg void OnAbout(); lEbR) B,
afx_msg void OnBrowse(); k,iV$,[TF
afx_msg void OnChange(); Ox*T:5
//}}AFX_MSG 40d9/$uzh
DECLARE_MESSAGE_MAP() S%s|P=u
}; zHc 4e
#endif b;`#Sea
VE"0VB.
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file &R FM
d=
#include "stdafx.h" oy2dA
#include "Capture.h" $4*E\G8
#include "CaptureDlg.h" C+]q
#include <windowsx.h> x*"pDI0k)
#pragma comment(lib,"hook.lib") OjlB0
#ifdef _DEBUG K^&
]xFW
#define new DEBUG_NEW .'{6u;8
#undef THIS_FILE ID).*@(I"
static char THIS_FILE[] = __FILE__; GlgORy=>
#endif +JAfHQm-
#define IDM_SHELL WM_USER+1 VBsFT2XiL
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); iLd"tn'
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); f+aS2k(e>
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; Ta\8>\6
class CAboutDlg : public CDialog 9Glfi@.
{ Ysc|kxLb
public: VDu
.L8
CAboutDlg(); nP{sCH 1
// Dialog Data Z=Y_;dS9
//{{AFX_DATA(CAboutDlg) q,,>:]f#
enum { IDD = IDD_ABOUTBOX }; $s(4?^GP
//}}AFX_DATA t"bPKFRy9E
// ClassWizard generated virtual function overrides b}*@=X=4o
//{{AFX_VIRTUAL(CAboutDlg) ))69a
protected: ])ALAAIc-
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 031.u<_
//}}AFX_VIRTUAL {L-aXe{
// Implementation b}?@syy8
protected: Gp3nR<+
//{{AFX_MSG(CAboutDlg) `ToRkk&&>{
//}}AFX_MSG k1Mxsd
DECLARE_MESSAGE_MAP() ywQ!9 \
}; Q~Sv2
sHPwW5j/o'
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) 0jJ28.kOp
{ (zw=qbS&
//{{AFX_DATA_INIT(CAboutDlg) "G-0i KW;
//}}AFX_DATA_INIT 60~>f)vu
} b^l
-*4
]T3BDgu%&
void CAboutDlg::DoDataExchange(CDataExchange* pDX) A]O5+"mc
{ Yx}"> ;\
CDialog::DoDataExchange(pDX); ?(NT!es
//{{AFX_DATA_MAP(CAboutDlg) L3=YlX`UL
//}}AFX_DATA_MAP <&Y}j&(
} >gZk
581/
gC_s\WU
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 6(q`Oj
//{{AFX_MSG_MAP(CAboutDlg) X?v^>mA
// No message handlers 5)>ZO)F&
//}}AFX_MSG_MAP qnk,E-
END_MESSAGE_MAP() 7ru9dg1?
ZaUcP6[h
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) D_19sN@0m
: CDialog(CCaptureDlg::IDD, pParent) N} x/&e
{ kG;eOp16R
//{{AFX_DATA_INIT(CCaptureDlg) ^2;(2s
m_bControl = FALSE; 8T.5Mhx0jS
m_bAlt = FALSE; #SihedWi
m_bShift = FALSE; 1l|A[G
m_Path = _T("c:\\"); U ygw*+
m_Number = _T("0 picture captured."); w(e+o.:
nCount=0; 2) /k`Na
bRegistered=FALSE; C>`.J_N
bTray=FALSE; 9*TS90>a
//}}AFX_DATA_INIT ox\B3U%`p}
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 &W)+8N,L
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); [;IDTo!<>
} Nvx)H(8F
#-gGsj;F
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) nzE,F\k
{ i^s`6:rNu
CDialog::DoDataExchange(pDX); 1y)$[e
//{{AFX_DATA_MAP(CCaptureDlg) eA*Jfb
DDX_Control(pDX, IDC_KEY, m_Key); v-7Rb)EP
DDX_Check(pDX, IDC_CONTROL, m_bControl); rz[uuY7
DDX_Check(pDX, IDC_ALT, m_bAlt); EDgob^>
DDX_Check(pDX, IDC_SHIFT, m_bShift); _L:i=.hxN
DDX_Text(pDX, IDC_PATH, m_Path); 5fj
DDX_Text(pDX, IDC_NUMBER, m_Number); bDh:!M
//}}AFX_DATA_MAP ]lB3qEn<
} .XLV:6
WDoKbTv
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) -M>K4*%K
//{{AFX_MSG_MAP(CCaptureDlg) 5}d/8tS
ON_WM_SYSCOMMAND() SN[L4}{
ON_WM_PAINT() 0,~6TV<K
ON_WM_QUERYDRAGICON() GOZQ5m
-
ON_BN_CLICKED(ID_ABOUT, OnAbout) q(jkit~`A
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) vU8FHVytV
ON_BN_CLICKED(ID_CHANGE, OnChange) [N+ m5{tT
//}}AFX_MSG_MAP 6L:trLuQ
END_MESSAGE_MAP() }4\!7]FVYX
\%-E"[!
BOOL CCaptureDlg::OnInitDialog() C$'D]fX
{ fZw9zqg
CDialog::OnInitDialog(); z3vsz
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); oXQ<9t1(
ASSERT(IDM_ABOUTBOX < 0xF000); x#:BE
CMenu* pSysMenu = GetSystemMenu(FALSE); M ~ i+F0
if (pSysMenu != NULL) Q2[prrk%j
{ Hlt8al3
CString strAboutMenu; 4(Cd
strAboutMenu.LoadString(IDS_ABOUTBOX); zU4V^N'
if (!strAboutMenu.IsEmpty()) Mg a@JA"
{ 'Ffy8z{&3
pSysMenu->AppendMenu(MF_SEPARATOR); OZ>)sL
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); j5,^9'
} dK J@{d
} t> x-1vf%
SetIcon(m_hIcon, TRUE); // Set big icon =$)4:
SetIcon(m_hIcon, FALSE); // Set small icon !Ig|m+
m_Key.SetCurSel(0); ##EB; Y
RegisterHotkey(); v ]/OAH6D
CMenu* pMenu=GetSystemMenu(FALSE); nL":0!DTRD
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); ]< s\V-y
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); R%Ui6dCLo
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); `FzYvd"N
return TRUE; // return TRUE unless you set the focus to a control \ifK~?
} n2xLgK=
Ss#@=:"P
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) |P,zGy
{ (
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if ((nID & 0xFFF0) == IDM_ABOUTBOX) `x{.z=xC
{ Sc4obcw%
CAboutDlg dlgAbout; .)"_Q/q
dlgAbout.DoModal(); S1 EEASr!}
} [5?4c'Ev
else (xZr ]v ]U
{ tb:,Uf>E
CDialog::OnSysCommand(nID, lParam); M('s|>\l
} ?Y?gzD
} (kWSK:l
L25kh}Q#7
void CCaptureDlg::OnPaint() `1E|PQbWc
{ :mXGIRi
if (IsIconic()) :jt;EzCLg%
{ vU_d=T%$
CPaintDC dc(this); // device context for painting (~j,mk
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); fBf4]^
// Center icon in client rectangle w24{_ N
int cxIcon = GetSystemMetrics(SM_CXICON); X(Y#9N"
int cyIcon = GetSystemMetrics(SM_CYICON); P"(z jG9-
CRect rect; heE}_,$|
GetClientRect(&rect); |^7f\.oF
int x = (rect.Width() - cxIcon + 1) / 2; H&w:`JYDL3
int y = (rect.Height() - cyIcon + 1) / 2; w(76H^e
// Draw the icon ID67?:%r
dc.DrawIcon(x, y, m_hIcon); NJ;"jQ-
} z-EwXE
else B ~fSMB6h
{ csH2_+uG
CDialog::OnPaint(); ?muDTD%c
} di6B!YQP
} [[R7~.;
!dU9sB2
HCURSOR CCaptureDlg::OnQueryDragIcon()
]pW86L%
{ O1GDugZ
return (HCURSOR) m_hIcon; ~Cjz29|gp
} "w}-?:# j
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void CCaptureDlg::OnCancel() $> "J"IX
{ z$JX'(<Z7
if(bTray) S~KS9E~\
DeleteIcon(); aq3~!T;W
CDialog::OnCancel(); 3lo;^KX !
} 2\^G['9
@Ii-NmOr
void CCaptureDlg::OnAbout() XDPL;(?
{ :P3{Nxa
CAboutDlg dlg; K)\(wxv
dlg.DoModal(); ]dvPx^`d{
} ,i?)
#SKfE
void CCaptureDlg::OnBrowse() Og,Y)a;=
{ 95=gY
CString str; kOw=c Gt
BROWSEINFO bi; J,f/fPaf7
char name[MAX_PATH]; AY#wVy
ZeroMemory(&bi,sizeof(BROWSEINFO)); t)YUPDQ@J
bi.hwndOwner=GetSafeHwnd(); <fN;
xIB
bi.pszDisplayName=name; ev9;Ld
bi.lpszTitle="Select folder"; JnfqXbE
bi.ulFlags=BIF_RETURNONLYFSDIRS; _ Yfmxn8V
LPITEMIDLIST idl=SHBrowseForFolder(&bi); QE|`&~sme
if(idl==NULL) S_J,[#&
return; aF!E x
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); G6ayMw]OF
str.ReleaseBuffer(); m#tpbFAsc
m_Path=str; >lrhHU
if(str.GetAt(str.GetLength()-1)!='\\') 8zY)J #
m_Path+="\\"; JPEIT
UpdateData(FALSE); 3KSpB;HX
} B$rTwR"(-
s f(iE(o
void CCaptureDlg::SaveBmp() }g~g50ci
{ Kx~$Bor_!
CDC dc; ZWO)tVw9G
dc.CreateDC("DISPLAY",NULL,NULL,NULL); ; e@gO
CBitmap bm; Q]@c&* _|
int Width=GetSystemMetrics(SM_CXSCREEN); <3 A0={En
int Height=GetSystemMetrics(SM_CYSCREEN); 4'' ,6KJ@
bm.CreateCompatibleBitmap(&dc,Width,Height); yL6^\x
CDC tdc; C,/O
tdc.CreateCompatibleDC(&dc); H@GE)I>^@
CBitmap*pOld=tdc.SelectObject(&bm); o\Uu?.-<
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); 1BJ<m5/1%
tdc.SelectObject(pOld); 6B0#4Qrv
BITMAP btm; Ga v"C{G
bm.GetBitmap(&btm); H$!+A
DWORD size=btm.bmWidthBytes*btm.bmHeight; Z7fg
25
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); qj&bo
BITMAPINFOHEADER bih; .20V
3
bih.biBitCount=btm.bmBitsPixel; &)n_]R#)
bih.biClrImportant=0; \R(R9cry
bih.biClrUsed=0; Y;Ap9i*
bih.biCompression=0; 8nCp\0
bih.biHeight=btm.bmHeight; )0^># k
bih.biPlanes=1; g+xw$A ou
bih.biSize=sizeof(BITMAPINFOHEADER); Ve}[XqdS^p
bih.biSizeImage=size; gxwo4.,
bih.biWidth=btm.bmWidth; ,M QVE
bih.biXPelsPerMeter=0; Oe51PEqn
bih.biYPelsPerMeter=0; #EDEYEW7
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); 9Hd;353Q
static int filecount=0; !;S"&mcPDJ
CString name;
.[?BlIlm
name.Format("pict%04d.bmp",filecount++); OR:[J5M)
name=m_Path+name; qz!Ph5(
BITMAPFILEHEADER bfh; ]dSK
wxk
bfh.bfReserved1=bfh.bfReserved2=0; p~&BChBl!=
bfh.bfType=((WORD)('M'<< 8)|'B'); iib
bfh.bfSize=54+size; 5u r)uz]w8
bfh.bfOffBits=54; UZGDdP
CFile bf; }g|nz8
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ 5{d\uE%'p
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); Tkw;pb
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); LH2PTW\b!6
bf.WriteHuge(lpData,size); }u%"$[I}
bf.Close(); |S&5es-yW
nCount++; ]N^*tO
} YuQ~AE'i
GlobalFreePtr(lpData); lwT9~Hyp
if(nCount==1) D'b#,a;V
m_Number.Format("%d picture captured.",nCount); %T!J$a)qf
else ?P/AC$:|I
m_Number.Format("%d pictures captured.",nCount); Dzl;-]S
UpdateData(FALSE); o%`Xa#*Ly
} TJ(K3/)Z
7AwgJb hn
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) x({H{'9?
{ 9Ma0^_
if(pMsg -> message == WM_KEYDOWN) KVPR}qTP;
{ gd7^3q[$h
if(pMsg -> wParam == VK_ESCAPE) hIYTe
return TRUE; }^-<k0A4?
if(pMsg -> wParam == VK_RETURN) 8 TiG3
return TRUE; 4nqoZk^R
} w8Vw1wW
return CDialog::PreTranslateMessage(pMsg); bc I']WgB-
} HpVjee
$g10vF3
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) D\1k.tI
{ >\2:\wI
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ kL>d"w
SaveBmp(); @F~LW6K
return FALSE; OtTBErQNF
} At6qtoPRA
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ n6MM5h/#r
CMenu pop; QAPu<rdJP
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); . ]@=es
CMenu*pMenu=pop.GetSubMenu(0); X^@I].
pMenu->SetDefaultItem(ID_EXITICON); yClx` S(
CPoint pt; =IU*}>#
GetCursorPos(&pt); #!2k<Q*5uT
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); &fOdlQ?
if(id==ID_EXITICON) 4)6xU4eBaL
DeleteIcon(); K_/zuTy
else if(id==ID_EXIT) EW<kI+0D
OnCancel(); ObG|o1b
return FALSE; (`BSVxJH
} Q`%R[#
LRESULT res= CDialog::WindowProc(message, wParam, lParam); lrWQOYf2
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) )$Mmn
AddIcon(); B,WTHU[AV
return res; BvD5SBa}"
} tV;`fV
Y&HK