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:
BbM/Rd1tAm
VKtlAfXy~ 一、实现方法
gg/ts]$ <PFF\NE9 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:
q;lR|NOh ~_hA{$ #pragma data_seg("shareddata")
8(Q|[ HHOOK hHook =NULL; //钩子句柄
[_KV;qS%/ UINT nHookCount =0; //挂接的程序数目
S
n<X static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
m68>` static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
B^!-%_q static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
-e_|^T" static int KeyCount =0;
QH,Fw$1 static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
x=Aq5*A0 #pragma data_seg()
Kx?.g#>U; *;(^)Sj4Q 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
}= wor~ =:Yrb2gP_\ DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
VP~(;H5% 52 *ii BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
lUaJC'~p cKey,UCHAR cMask)
33SCHQ {
cV"Ov@_.k BOOL bAdded=FALSE;
3GNcnb for(int index=0;index<MAX_KEY;index++){
z9:yt5ar if(hCallWnd[index]==0){
(&1.!R[X hCallWnd[index]=hWnd;
]bAVOKm- HotKey[index]=cKey;
hH9~.4+*`g HotKeyMask[index]=cMask;
eZ$M#I=o bAdded=TRUE;
Sgr. V) KeyCount++;
^D]J68)#a break;
blWtC/!Aq; }
#1C]ZV] B }
eIEL';N6 return bAdded;
W':b6}? }
@U4hq7xzV2 //删除热键
l[]cUE BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
%-]a[qf3 {
+?W4ac1 BOOL bRemoved=FALSE;
+0 }_X for(int index=0;index<MAX_KEY;index++){
@( \R@`# if(hCallWnd[index]==hWnd){
f ~*7hv\ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
`dD_"Hdt hCallWnd[index]=NULL;
-uu&{$ HotKey[index]=0;
FW5v
1s= HotKeyMask[index]=0;
D^2lb"3 bRemoved=TRUE;
@}19:A<' KeyCount--;
\>>P%EU, break;
J>k
6`gw }
aNs8T` }
j74hWz+p4 }
Q% d1O return bRemoved;
J2 / 19'QE }
BG8/ E]8uj8K3] ZW9OPwV DLL中的钩子函数如下:
K@JaN/OM ]v0Z[l>yf LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
_g
fmo {
V%)Tu{L BOOL bProcessed=FALSE;
S*>T%#F6Uo if(HC_ACTION==nCode)
@e& 0Wk {
VM:|I~gJ if((lParam&0xc0000000)==0xc0000000){// 有键松开
}JWkV1 switch(wParam)
/D1Lh_,2 {
$_,-ESI case VK_MENU:
O_ZYm{T[7 MaskBits&=~ALTBIT;
z;dRzwL break;
tHo|8c~[ case VK_CONTROL:
K,JK9)T MaskBits&=~CTRLBIT;
\EU^`o+ break;
\@yJbhk case VK_SHIFT:
{;E6jw@ MaskBits&=~SHIFTBIT;
w[\rS`J break;
#Q)r6V: default: //judge the key and send message
AC'_#nPL# break;
^a`3)WBv8 }
dHTx^1 for(int index=0;index<MAX_KEY;index++){
G&Dl($ if(hCallWnd[index]==NULL)
52 Qr continue;
(hdu+^Qj= if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
SASLeGaV {
/:Gy . SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
'e' p`* bProcessed=TRUE;
jDqG9] }
8!cHRtqK }
`'^o45 }
;x2o|#`b else if((lParam&0xc000ffff)==1){ //有键按下
Z\U r F0 switch(wParam)
T&MhSJf# {
$Hj;i/zD case VK_MENU:
r#2Fk&Z9 MaskBits|=ALTBIT;
~@Q]@8Tv\ break;
|dbKK\ X9 case VK_CONTROL:
;@Fb>lBhX MaskBits|=CTRLBIT;
4p-"1 c$ break;
/gl8w-6 case VK_SHIFT:
uDXV@;6< MaskBits|=SHIFTBIT;
Z]R#F0"U break;
d@1^U9sf default: //judge the key and send message
0IdA!.| break;
fqY'Uq$= }
oSmETk\ for(int index=0;index<MAX_KEY;index++){
'8\9@wzv if(hCallWnd[index]==NULL)
D*[Jrq, continue;
$,]U~7S if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
~Gz9pBv1 {
/5/gnpC SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
&Jb\}c} bProcessed=TRUE;
&^DVSVqs^ }
=EMB~i }
W+63B8)4 }
[:#K_EI5% if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
{+7FBdxVB
for(int index=0;index<MAX_KEY;index++){
}.&;NgZS if(hCallWnd[index]==NULL)
6
iMJ0 continue;
M-@X&bm,S if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
N)
_24 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
|%F,n2 //lParam的意义可看MSDN中WM_KEYDOWN部分
]uypi#[ }
W[*xr{0V }
H\a"=&M }
HnKgD: return CallNextHookEx( hHook, nCode, wParam, lParam );
_fu <`|kc }
bKGX>
%- ;s{'cN[. 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:
ZK'46lh prN+{N8YC BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
Ikf[K%NKn BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
b^C27s % g 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:
x51R:x(p oPr`SYB LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
1w(3!Ps+ {
YfB)TK\W9/ if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
85H\v_[ {
9QLG:(~; //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
RU4X#gP4Vh SaveBmp();
'!`\!=j-` return FALSE;
n`&D_AbQ }
RPgz"- …… //其它处理及默认处理
J](NCD }
@WS77d~S 86 e13MF ^M6lF5 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。
?..BA&zRk 2O[sRm) 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。
=hFY-~U $7DW-TA 二、编程步骤
"QNQ00[T`> w/ rQOHV{ 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
r>peKo[X( ll4CF}k 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
EG3,TuDH8 -wiQd@X 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
;[R6rVHe{ r4X}U|s!0 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
4k@n5JNa >d
p/ 5、 添加代码,编译运行程序。
reh{jMC EUuSN| a 三、程序代码
%eg +. IJGw<cB]+ ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
M=uT8JB #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
b;UDgq8v #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
pN5kcvQ #if _MSC_VER > 1000
HS{Vohy > #pragma once
,GYQ,9: #endif // _MSC_VER > 1000
)^{}ov #ifndef __AFXWIN_H__
>lUPOc #error include 'stdafx.h' before including this file for PCH
VnsV&cx #endif
mXp#6'a #include "resource.h" // main symbols
X'PZCg W class CHookApp : public CWinApp
}u
O YF {
vJ65F6=G public:
7\2I>W CHookApp();
)8W! | // Overrides
d2#NRqgQ // ClassWizard generated virtual function overrides
e7@ m i //{{AFX_VIRTUAL(CHookApp)
Mt-r`W3 q public:
1l#46?]~ virtual BOOL InitInstance();
j@z IJ virtual int ExitInstance();
#\lvzMjCC //}}AFX_VIRTUAL
F5
]<=i //{{AFX_MSG(CHookApp)
ylZQwICk // NOTE - the ClassWizard will add and remove member functions here.
>pfeP"[(3 // DO NOT EDIT what you see in these blocks of generated code !
J@I>m N1\ //}}AFX_MSG
;(/go\m
tB DECLARE_MESSAGE_MAP()
N, Ma\D+^t };
{V
QGfN LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
f_S$CFa@ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
?yef?JI$p BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
r9_ ON| BOOL InitHotkey();
mEd2f^R BOOL UnInit();
8eS(gKD #endif
/o;L,mcx* W"vLCHTh //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
tjx8UgSi #include "stdafx.h"
G9Uc
}z #include "hook.h"
Z\CvaX #include <windowsx.h>
CLaQE{ #ifdef _DEBUG
.u&xo{$'dS #define new DEBUG_NEW
S"h;u=5it #undef THIS_FILE
r$={_M$ static char THIS_FILE[] = __FILE__;
bLai@mL&a #endif
e`qrafa #define MAX_KEY 100
W`Gbo
uxd #define CTRLBIT 0x04
?^%[*OCCC! #define ALTBIT 0x02
,]2?S5R #define SHIFTBIT 0x01
x'`{#bKD #pragma data_seg("shareddata")
uxU-N HHOOK hHook =NULL;
cWkg.ri-x UINT nHookCount =0;
1WMZ$vsQUb static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
'OtTq8G static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
fAULuF static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
4<#ItQ( static int KeyCount =0;
i86:@/4~F static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
5Z!$?J4Rl #pragma data_seg()
nd8<*ru$ HINSTANCE hins;
]H
n:c'aT void VerifyWindow();
rS BI'op BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
A{zqr^/h //{{AFX_MSG_MAP(CHookApp)
hc|A:v)] // NOTE - the ClassWizard will add and remove mapping macros here.
NlEyT9 // DO NOT EDIT what you see in these blocks of generated code!
:.*Q@X}-I //}}AFX_MSG_MAP
CXrOb+ END_MESSAGE_MAP()
a|u#w~ ZTzec zXpQ CHookApp::CHookApp()
G7 UUx+ X {
['}|#3*w // TODO: add construction code here,
$?PI>9g! // Place all significant initialization in InitInstance
?l9sj]^w }
jV sH ]AY 4bm CHookApp theApp;
$k\bP9
LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
vTK%8qoZ {
, lR(5ZI BOOL bProcessed=FALSE;
]jhi"BM if(HC_ACTION==nCode)
a 20w.6F {
iP(MDVg if((lParam&0xc0000000)==0xc0000000){// Key up
>j=ZB3yZ switch(wParam)
L}*o8l` {
71nZi`AR case VK_MENU:
D",L. MaskBits&=~ALTBIT;
1 7~Pc break;
2X2Ax~d@ case VK_CONTROL:
F|F0#HC ? MaskBits&=~CTRLBIT;
8?nn4]P break;
s5@BVD'}E case VK_SHIFT:
BjH|E@z MaskBits&=~SHIFTBIT;
/+92DV break;
e#;43=/Ia default: //judge the key and send message
"rn break;
Z3TCi7,m }
{A0F/#M] for(int index=0;index<MAX_KEY;index++){
6)^*DJy if(hCallWnd[index]==NULL)
fxcE1=a continue;
FvT4?7- if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
NRx 7S9W {
v)du] SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
}'P|A bProcessed=TRUE;
uBww }
4~Cf_`X}] }
h2zSOY{su }
LG,? ,%_s else if((lParam&0xc000ffff)==1){ //Key down
1/9*c *w switch(wParam)
#-B<u- {
%6cr4}Zm} case VK_MENU:
`C>h]H( MaskBits|=ALTBIT;
RkG?R3e break;
P}Ig6^[m\ case VK_CONTROL:
w]gLd MaskBits|=CTRLBIT;
%DiQTg7V, break;
i
7]o[ case VK_SHIFT:
W@AHE?s6g MaskBits|=SHIFTBIT;
w@-G_-6W break;
@JlT*:Dz default: //judge the key and send message
%h ;oi/pe break;
^N<aHFF }
r!!uA1!7 for(int index=0;index<MAX_KEY;index++)
7%"|6dw {
U=D;CjAh if(hCallWnd[index]==NULL)
.$-;`&0cZ continue;
DLbP$&o if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
L8D=F7 {
#eKKH]J/ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
a^&"gGg bProcessed=TRUE;
}`
3- }
jF;<9-m& }
jj&G[-"bv }
z!6_u@^- if(!bProcessed){
-"xAeI1+ for(int index=0;index<MAX_KEY;index++){
LkJq Bg if(hCallWnd[index]==NULL)
85#
3|5n continue;
-`q!mdA2 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
2tK~]0x SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
l^R:W#*+U }
&;ddnxFI
}
-J63'bb7oi }
'n7|fjX?Y return CallNextHookEx( hHook, nCode, wParam, lParam );
|iJz[% }
Kc]cJ`P4. w-WAgAch BOOL InitHotkey()
qE2<vjRg {
&k) +]r if(hHook!=NULL){
3)VO{Cj! nHookCount++;
l atm_\ return TRUE;
$Z&6 }
]rGd!"q else
+jrx;xwot hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
Z6gwAvf< if(hHook!=NULL)
2f:h z nHookCount++;
D?E
VzG return (hHook!=NULL);
jF6Q:`k }
AT
t.}- BOOL UnInit()
1R-0b{w[ {
1W*Qc_5 v1 if(nHookCount>1){
?:vg`m!* nHookCount--;
wOL%otEf return TRUE;
53uptQ{ }
3SWDPy BOOL unhooked = UnhookWindowsHookEx(hHook);
z]g#2xD2 if(unhooked==TRUE){
{0j,U\ kb nHookCount=0;
X{xkXg8h hHook=NULL;
u*l>)_HD }
rIPg,4y*S! return unhooked;
%pg)*>P h }
Z=-#{{bv AIl`>ac BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
TCzz]?G]la {
0 F8xS8vK+ BOOL bAdded=FALSE;
kN 2mPD/ for(int index=0;index<MAX_KEY;index++){
CPa+?__B if(hCallWnd[index]==0){
GX19GI@k hCallWnd[index]=hWnd;
>7a
ENKOg: HotKey[index]=cKey;
%zc.b HotKeyMask[index]=cMask;
G{.=27 bAdded=TRUE;
7oLl RU KeyCount++;
<2j$P Y9 break;
5Qg*j/z? }
8u[.s`^ }
b7xOm"X,N return bAdded;
>*/
|tL }
t`&mszd~T s7E %Et BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
si%V63 ^lN {
ajRht +{ BOOL bRemoved=FALSE;
Q>yj<DR for(int index=0;index<MAX_KEY;index++){
m?Jnb\0 if(hCallWnd[index]==hWnd){
=WCE "X if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
dh}"uM}a hCallWnd[index]=NULL;
L9hL@ HotKey[index]=0;
_j$V[=kdM/ HotKeyMask[index]=0;
3|e~YmZx bRemoved=TRUE;
,-d2wzhW KeyCount--;
S%]4['Y break;
78T;b7!-C }
]mJ9CP8P1c }
5FJ%"5n& }
!pa7]cZ return bRemoved;
mMZ=9 ?m }
WZA1nzRc +7"UF)
~k void VerifyWindow()
T8LvdzS {
\8Ewl|"N:u for(int i=0;i<MAX_KEY;i++){
S]ndnxy"b if(hCallWnd
!=NULL){ $m.'d*e5
if(!IsWindow(hCallWnd)){ JKYtBXOl
hCallWnd=NULL; M9Z9s11{H
HotKey=0; pOy(XUV9O
HotKeyMask=0; |<]wM(GxE
KeyCount--; |a1zJ_t4
} UGOe(JB
} 4`CO>Q
} M(^IRI-
} F":dS-u&L
1:h(8%H@"
BOOL CHookApp::InitInstance() y}QqS/
{ M;-FW5O't
AFX_MANAGE_STATE(AfxGetStaticModuleState()); Oa5-^&I
hins=AfxGetInstanceHandle(); B
4e}%
InitHotkey(); @ bvWqMa
return CWinApp::InitInstance(); {dl@#Tu
} EA:_PBZ
s0Y7`uD^
int CHookApp::ExitInstance() 4mGRk)hk:>
{ ,({%t
VerifyWindow(); IOrYm
UnInit(); iee`Yg!EOH
return CWinApp::ExitInstance(); 0,LUi*10
} 8r.MODZG/
F
j"]C.6B.
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file @bFl8-
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) F>u/Lh!
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ '~6l
6wi
#if _MSC_VER > 1000 SZgan
#pragma once ^3&-!<*
#endif // _MSC_VER > 1000 0"@p|nAa
'#r^W2
class CCaptureDlg : public CDialog a- /p/
I-%
{ n 8|
// Construction %eu_Pr 6X
public: H~<wAer,Op
BOOL bTray; e $5s],,n
BOOL bRegistered; +zFEx%3^
BOOL RegisterHotkey(); RoD9
UCHAR cKey; z\IZ5'
UCHAR cMask; ,+_gx.H2j
void DeleteIcon(); >&qaT*_g
void AddIcon(); 3A b_Z
UINT nCount; :rmi8!o
void SaveBmp(); _ZuI x=!
CCaptureDlg(CWnd* pParent = NULL); // standard constructor 3t ]0
// Dialog Data SMm$4h R
//{{AFX_DATA(CCaptureDlg) oW/H8 q<wY
enum { IDD = IDD_CAPTURE_DIALOG }; 6nk.q|n:g
CComboBox m_Key; oA
]F`N=
BOOL m_bControl; DVbY
BOOL m_bAlt; ,Hc,]TPC4
BOOL m_bShift; ?7*J4.
CString m_Path; |SsmVW$B|
CString m_Number; hcD.-(-;)
//}}AFX_DATA iEBxBsz_
// ClassWizard generated virtual function overrides fVBu?<=d
//{{AFX_VIRTUAL(CCaptureDlg) #fe zUU
public: 52Q~` t7F
virtual BOOL PreTranslateMessage(MSG* pMsg); QTI^?@+N>
protected: Z5>}
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support !:dhK
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); ]O68~+6
//}}AFX_VIRTUAL 62xAS#\K>
// Implementation nqujT8
protected: 3rv~r0
HICON m_hIcon; 3n TpL#
// Generated message map functions =hKu85
//{{AFX_MSG(CCaptureDlg) g>Kh? (
virtual BOOL OnInitDialog(); cNuBWLG
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); U| 1&=8l
afx_msg void OnPaint(); )RwO2H
afx_msg HCURSOR OnQueryDragIcon();
-+.-Ab7
virtual void OnCancel(); Hh;o<N>U
afx_msg void OnAbout(); R 9Yk9v
afx_msg void OnBrowse(); yCye3z.
afx_msg void OnChange(); 2W`<P2IA
//}}AFX_MSG "CWqPcr
DECLARE_MESSAGE_MAP() T`^LWc"
}; IQ}YF]I;
#endif F|W(_llfM
NIOWjhi[Jn
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file 4}=Z+tDu>
#include "stdafx.h" d[Rs
#include "Capture.h" rexy*Xv`2p
#include "CaptureDlg.h" GI*2*m!u
#include <windowsx.h> h]okY49hY
#pragma comment(lib,"hook.lib") *}`D2_uP
#ifdef _DEBUG vJ!<7 l&
#define new DEBUG_NEW fyt`$y_E[
#undef THIS_FILE 5},kXXN{+
static char THIS_FILE[] = __FILE__; k;y5nXIlN
#endif v/DWy(CC
#define IDM_SHELL WM_USER+1 5-X(K 'Q
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); s av
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); aruT eJF
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39};
w4p<q68
class CAboutDlg : public CDialog FZhjI 8+,~
{ !_UBw7Zm
public: P&]PJt5
CAboutDlg(); 3P2L phW
// Dialog Data g JMv
//{{AFX_DATA(CAboutDlg) VYN1^Tp
enum { IDD = IDD_ABOUTBOX }; W_N!f=HW
//}}AFX_DATA 4wQ>HrS)(
// ClassWizard generated virtual function overrides T$;N8x[
//{{AFX_VIRTUAL(CAboutDlg) ~w9ZSSb4
protected: 'gwh:8Xc
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 0E#3XhU
//}}AFX_VIRTUAL dy*CDRU4
// Implementation at `\7YfQp
protected: -J=N
//{{AFX_MSG(CAboutDlg) rn8t<=ptH3
//}}AFX_MSG #>\+6W17U
DECLARE_MESSAGE_MAP() v5o@ls
}; 86\B|!
%7bZnK`C
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) LK[%}2me
{ X>y6-%@
//{{AFX_DATA_INIT(CAboutDlg) x?B 8b-*
//}}AFX_DATA_INIT K Z)p\p<1
} m2$Qp{C6H
WH^rM`9
void CAboutDlg::DoDataExchange(CDataExchange* pDX) Tb6c]?'U
{ L>EC^2\
CDialog::DoDataExchange(pDX); j8ebVq
//{{AFX_DATA_MAP(CAboutDlg) u?n{r
//}}AFX_DATA_MAP ?]L:j
} \;smH;m
j;']L}R
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) ^yB>0/{)z
//{{AFX_MSG_MAP(CAboutDlg) U$(AZ|0
// No message handlers (GdL(H#IL
//}}AFX_MSG_MAP e7.!=R{6
END_MESSAGE_MAP() x GHS
RGim):1e
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/)
"Aq-H g
: CDialog(CCaptureDlg::IDD, pParent) jFBnP,WQ
{ o!+jPwEU
//{{AFX_DATA_INIT(CCaptureDlg) R\wG3Oxol
m_bControl = FALSE; lx&ME#~
m_bAlt = FALSE; "ujt:4p@
m_bShift = FALSE; l1qWl
m_Path = _T("c:\\"); 7BhRt8FSD+
m_Number = _T("0 picture captured."); h[O!kwE
nCount=0; SrVJ Q~:>
bRegistered=FALSE; 3%W
R
bTray=FALSE; _ADK8a6%)
//}}AFX_DATA_INIT pPdOwK#
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 ~\z\f}w
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); jci'q=Vpu
} JUlV$b.)J
S?5z
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) YbrsXp"
{ qeyBZ8BG
CDialog::DoDataExchange(pDX); HEjrat;5
//{{AFX_DATA_MAP(CCaptureDlg) m_z1|zM}o
DDX_Control(pDX, IDC_KEY, m_Key); ? h$>7|
DDX_Check(pDX, IDC_CONTROL, m_bControl); 7QlA/iKqK
DDX_Check(pDX, IDC_ALT, m_bAlt); Rz!E=1Y$
DDX_Check(pDX, IDC_SHIFT, m_bShift); F*_mHYa;
DDX_Text(pDX, IDC_PATH, m_Path); H[{ch t
h
DDX_Text(pDX, IDC_NUMBER, m_Number); <eq93
//}}AFX_DATA_MAP IRZ?'Im
} uz1t uX_
p&L`C|0
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) hfGA7P"
//{{AFX_MSG_MAP(CCaptureDlg) m"!!)
ON_WM_SYSCOMMAND() v?\bvg\E
ON_WM_PAINT() @Ooh}V#J
ON_WM_QUERYDRAGICON() %@{);5[
ON_BN_CLICKED(ID_ABOUT, OnAbout) DaW_-:@s
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) 24Y~x`W
ON_BN_CLICKED(ID_CHANGE, OnChange) Z;_WU
//}}AFX_MSG_MAP oh5fNx
END_MESSAGE_MAP() =B(zW.Gf
j_?U6$xi
BOOL CCaptureDlg::OnInitDialog() uL!{xuN
{ hNV"{V3`{
CDialog::OnInitDialog(); GJA3
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); S)[`Bm
ASSERT(IDM_ABOUTBOX < 0xF000); SZCFdb
CMenu* pSysMenu = GetSystemMenu(FALSE); L`ZH.fN
if (pSysMenu != NULL) wL2d.$?TEg
{ CW Y'q
CString strAboutMenu; tF)aNtX4^
strAboutMenu.LoadString(IDS_ABOUTBOX); }Jgz#d
if (!strAboutMenu.IsEmpty()) xcz1(R
{ Mp~E$f
pSysMenu->AppendMenu(MF_SEPARATOR); R4"g?
e
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); 1e;^MzB"
} -,~n|ceI
} (d[)U<
SetIcon(m_hIcon, TRUE); // Set big icon ^z$-NSlI
SetIcon(m_hIcon, FALSE); // Set small icon LmLV2f
m_Key.SetCurSel(0);
@>J4K#"
RegisterHotkey(); ?<Dinq
CMenu* pMenu=GetSystemMenu(FALSE); Rp)82-
.
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); L!-@dz
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); 4b8!LzKS
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); ,2)LH'Xx
return TRUE; // return TRUE unless you set the focus to a control EM*YN=S o
} Ftm%@S ?
GCx]VN3&
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) ()vxTTa
{ v!ULErs
if ((nID & 0xFFF0) == IDM_ABOUTBOX) gJ>?<F;
{ 74%,v|
CAboutDlg dlgAbout;
aF$HF;-y
dlgAbout.DoModal(); 3_IuK6K2
} }@V(y9K
else #`/KF_a3\>
{ 5isejR{r
CDialog::OnSysCommand(nID, lParam); 7 [55
} Ku_`F2Q
} 77OH.E|$
]OHzE]Q
void CCaptureDlg::OnPaint() p~28?lYv
{ xX
if (IsIconic()) =%|S$J
{ S"w$#"EJA
CPaintDC dc(this); // device context for painting Warz"n]iC
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); fAf sKO*
// Center icon in client rectangle PKu+$
int cxIcon = GetSystemMetrics(SM_CXICON); v[ru }/4
int cyIcon = GetSystemMetrics(SM_CYICON); rZZueYuXO
CRect rect; 8p7Uvn+m*
GetClientRect(&rect);
Xi5ZQo!t
int x = (rect.Width() - cxIcon + 1) / 2; Tc@r#!.m
int y = (rect.Height() - cyIcon + 1) / 2; {3C~cK{
// Draw the icon S
1|[}nYP
dc.DrawIcon(x, y, m_hIcon); LN?fw
} ~xu<xy@E
else TC3xrE:U<m
{ mz[rB|v"/7
CDialog::OnPaint(); w/N.#s^
} ZYrXav<
} -.1x! ~.jX
(eN\s98)/
HCURSOR CCaptureDlg::OnQueryDragIcon() F`U%xn,
{ uA:|#mO
return (HCURSOR) m_hIcon; iU{F\>
} c0u!V+V%
f>5{SoM
void CCaptureDlg::OnCancel() $\$5::}r
{ b3x!tuQn
if(bTray) 8OZc:/
DeleteIcon(); U=p,drF,A
CDialog::OnCancel(); [a5L WW
} NZ'S~Lr
OR4!73[I
void CCaptureDlg::OnAbout() J
\1&3r|R
{ eM+]KG)}
CAboutDlg dlg; xe2Ap[Y'M
dlg.DoModal(); 29pIO]8;
} +BM (0M+
h{yqNl
void CCaptureDlg::OnBrowse() goeWZ O
{ t&wtw
CString str; BM1uZJ0
BROWSEINFO bi; "Sc_E}q|e
char name[MAX_PATH]; Ta%{Wa\U9z
ZeroMemory(&bi,sizeof(BROWSEINFO)); uE-~7Q(@
bi.hwndOwner=GetSafeHwnd(); xRJv_=dT
bi.pszDisplayName=name; "Q#/J)N
bi.lpszTitle="Select folder"; 'i{kuTv
bi.ulFlags=BIF_RETURNONLYFSDIRS; _UYt
LPITEMIDLIST idl=SHBrowseForFolder(&bi); |SZRO,7x
if(idl==NULL) 3.?PdK&C
return; Ej
ip%m
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); ;_,=
str.ReleaseBuffer(); g` 6Xrf
m_Path=str; _NA0$bGN9
if(str.GetAt(str.GetLength()-1)!='\\') GrW+P[j9
m_Path+="\\"; .#6Dad=S*
UpdateData(FALSE); <u*~RYA2
}
s6rdQI]
r~z-l,
void CCaptureDlg::SaveBmp() 1fm\5/}'`1
{ d
/jO~+jP
CDC dc;
.-'
dc.CreateDC("DISPLAY",NULL,NULL,NULL); P(d4~hS
CBitmap bm; $985q@pV0
int Width=GetSystemMetrics(SM_CXSCREEN); 0Oc' .E9
int Height=GetSystemMetrics(SM_CYSCREEN); pcv (P
bm.CreateCompatibleBitmap(&dc,Width,Height); x,STt{I=
CDC tdc; ^LE`Y>&m
tdc.CreateCompatibleDC(&dc); j\("d4n%C
CBitmap*pOld=tdc.SelectObject(&bm); $OHY^IE(
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); #]oVVf_
tdc.SelectObject(pOld); YL=?N k/
BITMAP btm; AM1 J ^Dp
bm.GetBitmap(&btm); "6lf~%R"
DWORD size=btm.bmWidthBytes*btm.bmHeight; ^*
^te+N
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); "?EA G
BITMAPINFOHEADER bih; Mje6Q
bih.biBitCount=btm.bmBitsPixel; d3+pS\&IX?
bih.biClrImportant=0; xpKD 'O=T
bih.biClrUsed=0; lq}= &)%C
bih.biCompression=0; <K%qaf
bih.biHeight=btm.bmHeight; vX]\Jqy
bih.biPlanes=1; SgHLs
bih.biSize=sizeof(BITMAPINFOHEADER); &eG,CIT
bih.biSizeImage=size; >
F&Wuf
bih.biWidth=btm.bmWidth; AiykIER/
bih.biXPelsPerMeter=0; 4T`u?T]
bih.biYPelsPerMeter=0; d Ayof=
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); !1]72%k[
static int filecount=0; [2gK^o&t
CString name; p}hOkx4R\
name.Format("pict%04d.bmp",filecount++); 7KnZ
name=m_Path+name; cj`g)cX|
BITMAPFILEHEADER bfh; =M>1;Qr<Z/
bfh.bfReserved1=bfh.bfReserved2=0; D%N^iJC,9
bfh.bfType=((WORD)('M'<< 8)|'B'); =2BGS\$#
bfh.bfSize=54+size; j#"?Oe{_1
bfh.bfOffBits=54; <YP>c
CFile bf; scCOiK)
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ O7I:Y85i#O
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); 3<1Uq3Pa
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); w-2p'u['Z
bf.WriteHuge(lpData,size); ns9iTU)
bf.Close(); znw\Dn?g
nCount++; @Nn9-#iW
} Qa~o'
GlobalFreePtr(lpData); 6&S;Nrg9
if(nCount==1) (n05MwKu\
m_Number.Format("%d picture captured.",nCount); t?L;k+sMM
else 9w^1/t&=04
m_Number.Format("%d pictures captured.",nCount); M2(+}gv;7p
UpdateData(FALSE); \]e"#"v}}_
} }+h/2D
^I@1y}xi
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) ZWQrG'$?o8
{ k]!Fh^O~,
if(pMsg -> message == WM_KEYDOWN) UJ1iXV[h"
{ hW$B;
if(pMsg -> wParam == VK_ESCAPE) V~tq
_
return TRUE; 1hw1AJ}(F
if(pMsg -> wParam == VK_RETURN) F=U3o=-:
return TRUE; ,o& &d