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:
{ <ao4w6B
<8xP-(wk; 一、实现方法
@a7(*<". D2wgSrY 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:
\c@qtIc $dWl A<u #pragma data_seg("shareddata")
o^"d2= HHOOK hHook =NULL; //钩子句柄
vGMOXbq4& UINT nHookCount =0; //挂接的程序数目
vNwSZ{JBd static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
h-v&I> static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
)Q pP1[ static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
FlA$ G3 static int KeyCount =0;
G5e Ls static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
} C2i#;b #pragma data_seg()
ch2e#Jf8 F|3FvxA 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。
'<E8<bi 7=ga_2 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:
S:GUR6g8D MZ+IorZl BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
%A[p!U cKey,UCHAR cMask)
4uE5h~0Z {
Iy 8E$B; BOOL bAdded=FALSE;
xo"4mbTV for(int index=0;index<MAX_KEY;index++){
=)UiI3xHk if(hCallWnd[index]==0){
N?<@o2{ hCallWnd[index]=hWnd;
@p'v.;~# HotKey[index]=cKey;
$@f3=NJ4k HotKeyMask[index]=cMask;
igbb=@QBJ bAdded=TRUE;
rM?Dp2 KeyCount++;
]j#$. $q break;
BU?MRcHC }
0tL/:zID }
+(k)1kCMn return bAdded;
t 6IaRD }
wyhf:!-I //删除热键
vi.AzO BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
u~T$F/]k> {
(uxQBy BOOL bRemoved=FALSE;
GB0b|9(6D" for(int index=0;index<MAX_KEY;index++){
21EUP6}8j if(hCallWnd[index]==hWnd){
x$b[m20 if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
J?ZVzKTb>} hCallWnd[index]=NULL;
4J$f @6 HotKey[index]=0;
I;4CvoT HotKeyMask[index]=0;
!?M_%fNE bRemoved=TRUE;
[(UqPd$ KeyCount--;
xR6IXF>* break;
|g^W @.P }
>2{HH\ }
/lok3J: }
`hf9rjy4 return bRemoved;
|.8=gS5 }
m@2xC,@ 5BO!K$6 K}(n;6\ DLL中的钩子函数如下:
*TI6Z$b|6 Q&'Nr3H#tZ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
$^aXVy5p {
[bVP2j BOOL bProcessed=FALSE;
fw};.M if(HC_ACTION==nCode)
?vNS!rY2& {
/;$ew~} if((lParam&0xc0000000)==0xc0000000){// 有键松开
M#2U'jy switch(wParam)
LZ]pyoi {
VQx-gm8}! case VK_MENU:
J+|V[E<x MaskBits&=~ALTBIT;
HON[{Oq break;
`IQC\DSl/ case VK_CONTROL:
<aD+Ki6 MaskBits&=~CTRLBIT;
df rr.i break;
w%H#>k case VK_SHIFT:
g*AqFY7| MaskBits&=~SHIFTBIT;
ne*aC_)bT break;
FMr$cKvE]W default: //judge the key and send message
F
RUt}* break;
xT>V;aa\ }
EwZt/r for(int index=0;index<MAX_KEY;index++){
tqf-,BLh if(hCallWnd[index]==NULL)
FKm2slzb continue;
CI{TgL:l if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
<v^.FxId {
JPzPL\ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
NFPkK?+ bProcessed=TRUE;
9K(b Z{ }
4"=pcHNV }
`Yve
}
g8yZc}4 else if((lParam&0xc000ffff)==1){ //有键按下
UG$i5PV%i switch(wParam)
a]ey..m {
<O&s 'A[ case VK_MENU:
C`K/ai{4 MaskBits|=ALTBIT;
x7>sy,c break;
r?7^@ case VK_CONTROL:
%hQ`b$07t MaskBits|=CTRLBIT;
XA%?35v~ break;
h|Qh/jCX case VK_SHIFT:
?-i&6 i6Y MaskBits|=SHIFTBIT;
2US8<sq+ break;
c6.|; 4 default: //judge the key and send message
]~,'[gWb break;
``D-pnKK }
2x
CGr>X for(int index=0;index<MAX_KEY;index++){
]F!,Jx if(hCallWnd[index]==NULL)
J)f?x T* continue;
5j%jhby? if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
3]A'C& {
@wz7jzMi SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
+bU(-yRy5o bProcessed=TRUE;
3f
x!\ }
e9nuQ\= }
K[Kc'6G }
*2Kte'+q if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
n"vI> _|G for(int index=0;index<MAX_KEY;index++){
U6"50G~u if(hCallWnd[index]==NULL)
lU3wIB continue;
C_o.d~xm if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
F u)7J4Z SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
eyOAG4QTV //lParam的意义可看MSDN中WM_KEYDOWN部分
2t%)d9r32 }
NaIVKo }
5sRNqTIr }
F{S.f1Bsp return CallNextHookEx( hHook, nCode, wParam, lParam );
Fej$`2mRH }
y!].l0e2a z;)% i f6 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:
:.^{! TM9>r :j' BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
0td;Ag BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
$vd._j& u]"RAH 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
) PtaX|U j"]%6RwM] LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
f/xBR"' {
/TdTo@ if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
7u; B[qH {
UA^E^$f: //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
`|4{|X*U. SaveBmp();
- >2ej4C return FALSE;
$%<gp@Gz }
am=56J$ig …… //其它处理及默认处理
mdwY48b }
5M3QRJ! CwAl-o ZD*>i=S 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。
D6D*RTi4 $JOIK9+3z# 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
H74hv`G9 HO'
HkVA 二、编程步骤
/YHeO FU<rE&X2: 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
;YB8X&H$ e.Ii@< 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
R!`#pklB RGcT 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;
{\k9%2V*+ 0\/7[nwS 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;
*op7:o_ Z]aSo07 5、 添加代码,编译运行程序。
)]>9\( /g21.*Z 三、程序代码
#ws6z`mt ~{ HA!C# ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
wM><DrQ #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
lps #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
WTXTr0= #if _MSC_VER > 1000
r`lgK2r\ #pragma once
bf3)^ 49} #endif // _MSC_VER > 1000
T_r[#j #ifndef __AFXWIN_H__
E-r/$&D5mP #error include 'stdafx.h' before including this file for PCH
]UMwpL&rY #endif
WvR}c #include "resource.h" // main symbols
D}:D,s8UP class CHookApp : public CWinApp
p@P[pzxI {
JjM^\LwKkL public:
9t= erhUr CHookApp();
-WEiY // Overrides
NvYgRf}uh // ClassWizard generated virtual function overrides
9~N7hLT //{{AFX_VIRTUAL(CHookApp)
UF}fmDi public:
(|Xf=q,Le virtual BOOL InitInstance();
n6oVx5/ virtual int ExitInstance();
l.C{Ar //}}AFX_VIRTUAL
qWo|LpxWt //{{AFX_MSG(CHookApp)
i2y?CI // NOTE - the ClassWizard will add and remove member functions here.
Y5K!DMKY // DO NOT EDIT what you see in these blocks of generated code !
9~a_^m/ //}}AFX_MSG
7m8L!t9 DECLARE_MESSAGE_MAP()
=\`9 \Gd };
fE7Kv_N-% LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
X!r!lW BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
5o&L|7] BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
zS.7O'I<' BOOL InitHotkey();
1`b?nX BOOL UnInit();
d
;ry!X #endif
{Ke3 NJn~XCq //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
28zt.9 #include "stdafx.h"
TLi0*)} #include "hook.h"
eQzTb91 #include <windowsx.h>
A*W QdY #ifdef _DEBUG
AX[/S8|6 #define new DEBUG_NEW
P^+Og_$ #undef THIS_FILE
7v1}8Uk static char THIS_FILE[] = __FILE__;
2_U H, n #endif
;b(/PH!O #define MAX_KEY 100
@"Do8p!*(6 #define CTRLBIT 0x04
)\p@E3Uxf #define ALTBIT 0x02
z.#gpTXD #define SHIFTBIT 0x01
uI.4zbgl[ #pragma data_seg("shareddata")
]5c| HHOOK hHook =NULL;
erqg|TsFj UINT nHookCount =0;
=yk#z84< static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
AQ@A$ static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
L[<MBgFKv static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
/ZX8gR5x static int KeyCount =0;
2uV=kq nO static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
61CNEzQ #pragma data_seg()
DtyT8kr HINSTANCE hins;
("wPkm^ void VerifyWindow();
90M:0SH BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
Nqz-Mr` //{{AFX_MSG_MAP(CHookApp)
*9*6n\~aI // NOTE - the ClassWizard will add and remove mapping macros here.
lYU_uFOs\ // DO NOT EDIT what you see in these blocks of generated code!
p}N'>+@= //}}AFX_MSG_MAP
Ywlym\
[+ END_MESSAGE_MAP()
L<J%IlcfO 65qH CHookApp::CHookApp()
*COr^7Kf5 {
Ci=c"JdB // TODO: add construction code here,
#2|sS|0 < // Place all significant initialization in InitInstance
IB(5 &u. }
X=_N7! h?fv:^vSi CHookApp theApp;
)";g*4R[ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
9
bGN5.5 {
'^}l|( BOOL bProcessed=FALSE;
L<5go\!bV if(HC_ACTION==nCode)
%;9wToyK> {
r!#NFek} if((lParam&0xc0000000)==0xc0000000){// Key up
6d` 6=D: switch(wParam)
2A
{k>TjQ {
^BSMlKyB case VK_MENU:
<c^m|v MaskBits&=~ALTBIT;
#W'jNX,h break;
f GY. +W_ case VK_CONTROL:
m>:3Ku MaskBits&=~CTRLBIT;
^=FtF9v break;
EivZI<<a case VK_SHIFT:
Q_qc_IcM y MaskBits&=~SHIFTBIT;
-.i1l/FzP break;
9kQ~)4# default: //judge the key and send message
/ IAK'/ break;
sR
~1J4 }
dy#dug6j for(int index=0;index<MAX_KEY;index++){
x}].lTjD if(hCallWnd[index]==NULL)
qP *$wKY, continue;
)$ i7b if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
2Pasmh {
-@<k)hWr SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
?:~Y%4; bProcessed=TRUE;
SPn0D9b] }
]7fqVOiOu }
O83vPK
3 }
7Oru{BQ"> else if((lParam&0xc000ffff)==1){ //Key down
_Z@- q switch(wParam)
~;3N'o {
[#$z.BoEo case VK_MENU:
8lT.2H MaskBits|=ALTBIT;
KPs5? X break;
t/#[At5p= case VK_CONTROL:
r,EIOcz: MaskBits|=CTRLBIT;
Zii<jZ.)< break;
Y_xPr%%A case VK_SHIFT:
[x'xbQLGd MaskBits|=SHIFTBIT;
hF.9\X] break;
=;i@,{
~ default: //judge the key and send message
Kisd.~u8j break;
BJ @tUn }
bH~ue5q for(int index=0;index<MAX_KEY;index++)
.3t[M0sd {
"P~0 7 if(hCallWnd[index]==NULL)
&w- QMjM> continue;
mflH &Bx9 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Ir_K83VM {
bN8GRK ) SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
??CtmH bProcessed=TRUE;
?*tb|AL(R }
9axJ2J'g }
`s Az1/N }
o2He}t2o if(!bProcessed){
^EPM~cEY\ for(int index=0;index<MAX_KEY;index++){
H B_si if(hCallWnd[index]==NULL)
Mp:tcy,* continue;
A<C`JN} if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
[u[F6Wst SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
5P,{h }
1NtN-o)N? }
h1^q};3!W\ }
7q<I7Wt return CallNextHookEx( hHook, nCode, wParam, lParam );
zZ3,e L }
82WXgB> Bmm#5X@* BOOL InitHotkey()
Qv,8tdx {
#joGIw if(hHook!=NULL){
==F[5]? nHookCount++;
x JQde 4 return TRUE;
}xJ9EE*G/ }
,[71,zs else
)2C_6eR hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
N 3i,_ if(hHook!=NULL)
)cNG)F nHookCount++;
a;|C51GH return (hHook!=NULL);
,3Y~ #{,i }
t,4q]Jt BOOL UnInit()
T^x7w+ {
~@S5*(&8 if(nHookCount>1){
WBFG_]) nHookCount--;
&~ QQZ]q6 return TRUE;
{}H5%W }
I8;pMr6 BOOL unhooked = UnhookWindowsHookEx(hHook);
zM%ILv4 if(unhooked==TRUE){
$`W.9 nHookCount=0;
aT$q1!U`j2 hHook=NULL;
]1>U@oK }
^} P|L return unhooked;
qcEiJ}- }
L']EYK5 *|h-iA+9 BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
>Ip>x!wi {
D$
zKkPYI BOOL bAdded=FALSE;
p:U9#(v) for(int index=0;index<MAX_KEY;index++){
^B8%Re% if(hCallWnd[index]==0){
P/5bNK! hCallWnd[index]=hWnd;
NWd%Za5K; HotKey[index]=cKey;
u0`~
|K HotKeyMask[index]=cMask;
<GC<uB |p bAdded=TRUE;
Me;@/;c( KeyCount++;
p(in.Xz break;
o65:)z
u }
rT9<_< }
i,=greA]" return bAdded;
h<U<KO }
lp3 A B ,7,x9qE" BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
xjB2?:/2 {
`VX]vumG BOOL bRemoved=FALSE;
{Tb(4or?=b for(int index=0;index<MAX_KEY;index++){
KSU?Tg&JR if(hCallWnd[index]==hWnd){
(NK$2A/p if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
aRPgo0,W1 hCallWnd[index]=NULL;
]`)50\pdw HotKey[index]=0;
25]Mi2_ HotKeyMask[index]=0;
k_?xiOSh bRemoved=TRUE;
JYB"\VV KeyCount--;
o ?@,f/"5 break;
OBaG'lrZy }
(oO*|\9u }
3qU#Rg
;7 }
ieXhOA return bRemoved;
rt)70= }
8##-fv] ~`)`Ip void VerifyWindow()
ZLw7-H6Fh {
m-9{@kgAM? for(int i=0;i<MAX_KEY;i++){
r Z5vey if(hCallWnd
!=NULL){ vn<z\wVbf
if(!IsWindow(hCallWnd)){ ,{P*ZK3u
hCallWnd=NULL; +InAK>NZ'
HotKey=0; vHSX3\(
HotKeyMask=0; Z ?`
KeyCount--; 5W_u|z+/g
} SQx%CcW9d
} 7.)e4
} 9[K".VeT]
} I@IZ1
/J,r
6'
}oo'#~
BOOL CHookApp::InitInstance() )7@f{E#w
{ %B+W#Q`
AFX_MANAGE_STATE(AfxGetStaticModuleState()); 5VIc
hins=AfxGetInstanceHandle(); oe,I vnt
InitHotkey(); R&}"En`$s
return CWinApp::InitInstance(); .w=( G
} SXkUtY$
"]h4L
int CHookApp::ExitInstance() 5ZeE& vG2
{ >PdYQDyVS
VerifyWindow(); 6\>S%S2:
UnInit(); T(t@[U2^
return CWinApp::ExitInstance(); \; ! oG
} Y"~Tf{8
`B6~KZ
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file d,kh6'g2@
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) _~V7m
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ y'\BpP
#if _MSC_VER > 1000 j\l9|vpp
#pragma once c\"t+/Z
#endif // _MSC_VER > 1000 0kxo
u!I Es
class CCaptureDlg : public CDialog r}kQ<SRx
{ k"_i7
// Construction ):"Z7~j=
public: '&/ 35d9|*
BOOL bTray; O[ tD7!1
BOOL bRegistered; 9gNQ,c
\gT
BOOL RegisterHotkey(); $|+q9o\
UCHAR cKey; %Jy0?W N
UCHAR cMask; *J^l
r"%c
void DeleteIcon(); {No*Z'X
void AddIcon(); _<tWy+.
UINT nCount; Z*&y8;vUQ
void SaveBmp(); reo
CCaptureDlg(CWnd* pParent = NULL); // standard constructor w`_cmI
// Dialog Data DUBEh@
//{{AFX_DATA(CCaptureDlg) zN}1Qh
enum { IDD = IDD_CAPTURE_DIALOG }; hM}rf6B
CComboBox m_Key; j8Nl'"
BOOL m_bControl; yB][
3?lv
BOOL m_bAlt; -L%J,f[&,
BOOL m_bShift; _dQVundH
CString m_Path; b(^g v
CString m_Number; ['9awgkr/
//}}AFX_DATA W(jXOgs+_
// ClassWizard generated virtual function overrides ,w>WuRN"
//{{AFX_VIRTUAL(CCaptureDlg) wHneVqI/U
public: fL^+Qb}
virtual BOOL PreTranslateMessage(MSG* pMsg); qg521o$*
protected: 50MdZ;R-3
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support WhPwD6l>
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); tJ:]ne
//}}AFX_VIRTUAL \#1*r'V8
// Implementation tE&@U$0>o
protected: ahezDDR-.i
HICON m_hIcon; zj~(CNE
// Generated message map functions | %E\?-TK
//{{AFX_MSG(CCaptureDlg) ]J<2a`IK!
virtual BOOL OnInitDialog(); SePPI.n
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); [!^Q_O
afx_msg void OnPaint(); I~:v X^%9
afx_msg HCURSOR OnQueryDragIcon(); eN*=wOh
virtual void OnCancel(); lqD.epm
afx_msg void OnAbout(); sZ~q|}D-
afx_msg void OnBrowse(); 82w;}(!
afx_msg void OnChange(); SVr3OyzI
//}}AFX_MSG z^@.b
DECLARE_MESSAGE_MAP() OnD!*jy
}; K7G|cZ/^
#endif N(*Xjy+PX
uJBs 3X
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file 6??o(ziK$
#include "stdafx.h" *,C[yg1P
#include "Capture.h" e_eNtVq
#include "CaptureDlg.h" X5s.F%Np!
#include <windowsx.h> Z )Imj&;
#pragma comment(lib,"hook.lib") Yd}Jz
#ifdef _DEBUG {VBn@^'s
#define new DEBUG_NEW C!]R0L*
#undef THIS_FILE 0D x,)C
static char THIS_FILE[] = __FILE__; N^G
$:GC
#endif i5f8}`w
#define IDM_SHELL WM_USER+1 U[4Xo&`
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); cr}T ? $\K
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); J[Ckz]
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; B=EI&+F+
class CAboutDlg : public CDialog <F>^ffwGH-
{ &sFEe<
public: 4*j6~
CAboutDlg(); O)0}yF$0
// Dialog Data }6Ut7J]a|
//{{AFX_DATA(CAboutDlg) 3K8#,TK3
enum { IDD = IDD_ABOUTBOX }; Yf=an`"
//}}AFX_DATA goE \C
// ClassWizard generated virtual function overrides W0zRV9"P
//{{AFX_VIRTUAL(CAboutDlg) cst}/8e
protected: 4tQ~Z6Jn;
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support JJIlR{WY_
//}}AFX_VIRTUAL UR3qzPm!0e
// Implementation jTR>H bh
protected:
11'^JmKA
//{{AFX_MSG(CAboutDlg) >MTrq%.
//}}AFX_MSG Aof)WKo
DECLARE_MESSAGE_MAP() a Uy!(Y
}; &:>3tFQSH
#[
H4`hZ
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) lx'^vK% F
{ Po)!vL"
//{{AFX_DATA_INIT(CAboutDlg) e9LP!"@EY
//}}AFX_DATA_INIT ab}Kt($
} /?ZO-]q
kFRl+,bi~
void CAboutDlg::DoDataExchange(CDataExchange* pDX) 6-fdfU
{ Rudj"OGO
CDialog::DoDataExchange(pDX); >3C4S
//{{AFX_DATA_MAP(CAboutDlg) yb-1zF|
//}}AFX_DATA_MAP 6>yfm4o
} R&-Vm3mc3
<UEta>jj
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) {
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//{{AFX_MSG_MAP(CAboutDlg) <M
y+!3\A
// No message handlers #`HY"-7m_
//}}AFX_MSG_MAP F3?PlH:Y
END_MESSAGE_MAP() Q)IL]S
O)aWTI
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) f@j )t%mh
: CDialog(CCaptureDlg::IDD, pParent) ? PI2X.6
{ A_4.>g
//{{AFX_DATA_INIT(CCaptureDlg) n9 %&HDl4
m_bControl = FALSE; NimW=X;c
m_bAlt = FALSE; x 8/I"!gI
m_bShift = FALSE; x+;a2yE~
m_Path = _T("c:\\"); W"v"mjYud
m_Number = _T("0 picture captured."); D}MCVNd^
nCount=0; W5^<4Ya!
bRegistered=FALSE; MQY}}a-oug
bTray=FALSE; A<U9$"j9J
//}}AFX_DATA_INIT &)$}Nk
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 ,J4rKGG
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); }T~}W8H
} 3F gTM(
[["az'Lrk?
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) JQ%D6b
{ \Q!I;
CDialog::DoDataExchange(pDX); u85dG7
//{{AFX_DATA_MAP(CCaptureDlg) h]jy):9L
DDX_Control(pDX, IDC_KEY, m_Key); 6Bf aB:
DDX_Check(pDX, IDC_CONTROL, m_bControl); ccY! OSae
DDX_Check(pDX, IDC_ALT, m_bAlt); P#l"`C
/
DDX_Check(pDX, IDC_SHIFT, m_bShift); ]ft}fU5C1
DDX_Text(pDX, IDC_PATH, m_Path); O>3f*Cc
DDX_Text(pDX, IDC_NUMBER, m_Number); 0a}a
//}}AFX_DATA_MAP '/'dg5bfV
} 7t3ps
_]t^F9l
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) "j/jhe6
//{{AFX_MSG_MAP(CCaptureDlg) C0}@0c
ON_WM_SYSCOMMAND() $]<wQH/?_
ON_WM_PAINT() sW&5Mu-
ON_WM_QUERYDRAGICON() x(+H1D\W
ON_BN_CLICKED(ID_ABOUT, OnAbout) &e\UlM22
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) I&9Itn p$
ON_BN_CLICKED(ID_CHANGE, OnChange) phi9/tO\u
//}}AFX_MSG_MAP P47x-;
END_MESSAGE_MAP() ]ne
;J,`v5z0:
BOOL CCaptureDlg::OnInitDialog() *TgD{>s
{ mMw--Gc?
CDialog::OnInitDialog(); aP[oLk$'Z
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); e0ULr!p
ASSERT(IDM_ABOUTBOX < 0xF000); 2C AR2V|
CMenu* pSysMenu = GetSystemMenu(FALSE); lw43|_'G-t
if (pSysMenu != NULL) w_P2\B^
{ =`ECM7
CString strAboutMenu; E1D0un
strAboutMenu.LoadString(IDS_ABOUTBOX); PJL
[En*
if (!strAboutMenu.IsEmpty()) b8LA|#]i
{ mRIBE9K+&
pSysMenu->AppendMenu(MF_SEPARATOR); 8l*h\p:Q
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); oTg
'N
} 8 .t3`FGH
} ]oLyvG
SetIcon(m_hIcon, TRUE); // Set big icon 4hx4/5[^
SetIcon(m_hIcon, FALSE); // Set small icon vP%}XEF
m_Key.SetCurSel(0); PJPKn0,W
RegisterHotkey(); @a i2A|
CMenu* pMenu=GetSystemMenu(FALSE); xri(j,mU
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND);
Dn#^-,H
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); @=6oB3tQA
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); 'fYF1gR4
return TRUE; // return TRUE unless you set the focus to a control ,W BKN)%u
} ~3)d?{5
{dYz|O<
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) lS]6SkZ6
{ "?^#+@LV
if ((nID & 0xFFF0) == IDM_ABOUTBOX) 0ev='v8?
{ W~FU!C?]
CAboutDlg dlgAbout; %c@PTpAM
dlgAbout.DoModal(); XEBj=5sG
} w:ASB>,!
else *i {e$Zv'
{ 3+&k{UZjt
CDialog::OnSysCommand(nID, lParam); ~gaWZQXyu
} 9)>+r6t
} <}G/x*N
[ldBI3
void CCaptureDlg::OnPaint() Zb&"W]HSf
{ S9[Y1qH>K
if (IsIconic()) b&6lu4D
{ *z};&UsF{
CPaintDC dc(this); // device context for painting &eb8k2S
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); @1D3E =
// Center icon in client rectangle `FwE^_9d
int cxIcon = GetSystemMetrics(SM_CXICON); y>cLG5v
int cyIcon = GetSystemMetrics(SM_CYICON); qP-_xpu]R
CRect rect; UW1i%u
k
GetClientRect(&rect); jOd+LXPJ
int x = (rect.Width() - cxIcon + 1) / 2; EQQ@nW{;
int y = (rect.Height() - cyIcon + 1) / 2; 4"UH~A;^
// Draw the icon }a;H2&bu
dc.DrawIcon(x, y, m_hIcon); cG&@PO]+.
} I+(
b!(H
else 0oZZLi
{ kek/C`7
CDialog::OnPaint(); nd$92H
} 7yjun|Lt}X
} KWM.e1(
J #5V>7G
HCURSOR CCaptureDlg::OnQueryDragIcon() eaDR-g"
{ %{rPA3Xoy
return (HCURSOR) m_hIcon; hAsReZ?
} L={\U3 __k
x4h.WDT$
void CCaptureDlg::OnCancel() V5p^]To!
{ ObJ-XNcNH
if(bTray) _.E{>IFw
DeleteIcon(); * U}-Y*
CDialog::OnCancel(); &3J^z7kU
} t/_\w"
'h^Ya?g
void CCaptureDlg::OnAbout() R"l6|9tmP
{ 0$0
215
CAboutDlg dlg; 6=Wevb5YJ
dlg.DoModal(); YQyI{
} ZpMv16
=>kg]
void CCaptureDlg::OnBrowse() r)Vpt
fg;
{ m#R"~ >
CString str; C]fX=~?bGQ
BROWSEINFO bi; L8H:,} 2
char name[MAX_PATH]; X&h?1lMJ /
ZeroMemory(&bi,sizeof(BROWSEINFO)); \B:k|Pw6~
bi.hwndOwner=GetSafeHwnd(); f*ABIm
bi.pszDisplayName=name; BsL+9lNue
bi.lpszTitle="Select folder"; ^Bo'87!.
bi.ulFlags=BIF_RETURNONLYFSDIRS; $|7=$~y
LPITEMIDLIST idl=SHBrowseForFolder(&bi); R*D5n>~
if(idl==NULL) ';!-a]N
return; c##tP*(
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); Ujlbcv6+
str.ReleaseBuffer(); G9V2(P
m_Path=str; Om;aE1sW
if(str.GetAt(str.GetLength()-1)!='\\') _n!>*A!
m_Path+="\\"; >I<}:=
UpdateData(FALSE); 9[teG5wAa
} ^FQn\,
7&/1K%x9;
void CCaptureDlg::SaveBmp() 'rS\9T
{ jKo9y
CDC dc; Qa\,)<'D:
dc.CreateDC("DISPLAY",NULL,NULL,NULL); u!HX`~q+A
CBitmap bm; N{ $?u
int Width=GetSystemMetrics(SM_CXSCREEN); SSTn|
int Height=GetSystemMetrics(SM_CYSCREEN); BTYYp1
bm.CreateCompatibleBitmap(&dc,Width,Height); I{ki))F
CDC tdc; Q+wO\TtE
tdc.CreateCompatibleDC(&dc); U$y wO4.
CBitmap*pOld=tdc.SelectObject(&bm); $Ff6nc=
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); fI2y(p{?
tdc.SelectObject(pOld); S8+l!$7
BITMAP btm; \jV2":[%c
bm.GetBitmap(&btm); DU)q]'[u
DWORD size=btm.bmWidthBytes*btm.bmHeight; k3e6y
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); &<_q00F
BITMAPINFOHEADER bih; K"|~D0Qgo
bih.biBitCount=btm.bmBitsPixel; HmkxE
bih.biClrImportant=0; p&u\gSo
bih.biClrUsed=0; )4-!]NsV
bih.biCompression=0; ]Hq,Pr_+
bih.biHeight=btm.bmHeight; @o*~\E<T
bih.biPlanes=1; t Zm`(2S
bih.biSize=sizeof(BITMAPINFOHEADER); >R_m@$`
bih.biSizeImage=size; EkRx/
bih.biWidth=btm.bmWidth; mF!4*k
bih.biXPelsPerMeter=0; "L`BuAB
bih.biYPelsPerMeter=0; hO{&bY0
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); &cT