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:
u&9|9+"N
-r_z,h| 一、实现方法
,AhQA K%1'zSAyK 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:
''s]6Jjw )PVX)2P_C #pragma data_seg("shareddata")
593D/^}D HHOOK hHook =NULL; //钩子句柄
`7LN?-
T UINT nHookCount =0; //挂接的程序数目
4?jXbC k~x static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
r8pTtf#Q static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
?9i
7w1` static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
qXn%c" static int KeyCount =0;
M%/ML=eLi static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
/<\>j+SC #pragma data_seg()
v1 d] K%Vl:2#F 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。
s>9w+|6Ji ,3qi]fFLMe 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:
K!lGo3n] s,\!@[N BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
3&/5!zOg) cKey,UCHAR cMask)
UW8b(b[-6b {
4xjk^N9 BOOL bAdded=FALSE;
-^Baxkq(YM for(int index=0;index<MAX_KEY;index++){
wwF]+w%lOw if(hCallWnd[index]==0){
A84I*d hCallWnd[index]=hWnd;
@f-0OX$* HotKey[index]=cKey;
u0^GB9q HotKeyMask[index]=cMask;
D[x0sly bAdded=TRUE;
hug8Hhf_& KeyCount++;
HWi0m/J break;
5#p [Q _ }
.36z }
rg]eSP3W return bAdded;
T+8F'9i` }
?dVF@ //删除热键
~3dBt@%0 BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
'
^^]Or {
MS%xOB*6 BOOL bRemoved=FALSE;
Q|rrbx b for(int index=0;index<MAX_KEY;index++){
DI'wZySS^ if(hCallWnd[index]==hWnd){
NmthvKhH if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
8j. 9Sk/ hCallWnd[index]=NULL;
hub1rY|No HotKey[index]=0;
?_3K]i1IS HotKeyMask[index]=0;
40<ifz[7 bRemoved=TRUE;
`r
&IA KeyCount--;
/>S=Y"a/7 break;
DB-4S-2 }
we9R4*j }
x>8=CiUE }
9He>F7J:p' return bRemoved;
@@9#odO }
)f>s\T Xhe2 5 U{gJn#e/. DLL中的钩子函数如下:
]7}2"?J4v eNY$N_P LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
0.4c|-n {
2~AGOx BOOL bProcessed=FALSE;
6Daz1Pxd+ if(HC_ACTION==nCode)
^n"ve2 {
~T7\lJ{%G if((lParam&0xc0000000)==0xc0000000){// 有键松开
&EYO[~D06 switch(wParam)
?*zRM?* {
J 6U3}SO=y case VK_MENU:
rLGh>bw#`3 MaskBits&=~ALTBIT;
ev7Y^
break;
|_{-hNiz0 case VK_CONTROL:
Y-hGHnh]' MaskBits&=~CTRLBIT;
a02@CsH break;
ZC'(^liAp case VK_SHIFT:
BaIH7JLZ8 MaskBits&=~SHIFTBIT;
3de<H=H' break;
+]*4!4MK6 default: //judge the key and send message
t5G@M&d4Eo break;
;>{BK, }
/!rH DcR for(int index=0;index<MAX_KEY;index++){
dU+28 if(hCallWnd[index]==NULL)
#8z2>&:| continue;
r5tC if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
W6_/FkO {
@jAuSBy SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
@x3x/gU bProcessed=TRUE;
J)D/w[w }
-bdF= }
WBLfxr }
D|}
y{~ else if((lParam&0xc000ffff)==1){ //有键按下
SE&J)Sj] switch(wParam)
S-Mn {
kaQn'5 case VK_MENU:
m!L&_Z|j MaskBits|=ALTBIT;
8*V^DM3n- break;
Jf{6'Ub case VK_CONTROL:
}A;J-7g6 MaskBits|=CTRLBIT;
B@D3aOvO break;
y((I2g1rv case VK_SHIFT:
\2~Cn c*O MaskBits|=SHIFTBIT;
P#-Ye<V~J( break;
d#cw`h<c~ default: //judge the key and send message
a^t#kdT break;
2uu"0Rm% }
%:yJ/&-Q,Z for(int index=0;index<MAX_KEY;index++){
NitWIj[U; if(hCallWnd[index]==NULL)
:KGUO{_u continue;
T|`nw_0 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
uA dgR {
fT9$0:eO SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
422d4Zu bProcessed=TRUE;
~ \z7$9Q }
CKeT%3 }
'+LC.l M }
Xn^gxOPM if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
ZG+8kt!w for(int index=0;index<MAX_KEY;index++){
}t#uSz^ if(hCallWnd[index]==NULL)
E8j>Toz continue;
{{w5F2b((% if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
gBGUGjVj SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
%/NB263Db //lParam的意义可看MSDN中WM_KEYDOWN部分
}w^Hm3Y^& }
PMC5qQ%x }
ya8MjGo }
Ugzq;}V# return CallNextHookEx( hHook, nCode, wParam, lParam );
-\xNuU }
:1NF#-2\f Y4q; 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
qKag'0e >J,Rx!fq3 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
")LcB'C BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
RGvfy/T [Zc8tE2oN 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
/@-!JF#g Ey7SQb LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
IIcG+zwx {
Gv?3T Am8 if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
;5QdT{$H {
Y@N-q //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
sw
A^oU SaveBmp();
l0N~mes return FALSE;
HE#IJB6BS? }
g.$a]pZz …… //其它处理及默认处理
706-QE^ }
^ur?da9z' <WhdQKFf- .BP@1K 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
FY1
>{Bn 9cQZ`Ex 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
5'=\$Ob },<(VhP 二、编程步骤
%X)w$}WH MHNuA,cz 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";
91'i7&~xdG KG7 ~)g 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
%i[G6+- d^AXhQjQN- 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;
}Fs;sfH *9Eep~ 6 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;
lr[U6CJY 2H+!78 5、 添加代码,编译运行程序。
x-J.*X/aB {}>s0B 三、程序代码
i [,9hp 5Us$.p ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
_D<=Yo #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
4h% G %>j #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
|hHj7X<?k #if _MSC_VER > 1000
!7)` g i #pragma once
;$=kfj9 :7 #endif // _MSC_VER > 1000
IkW8$> #ifndef __AFXWIN_H__
R]L$Ld< ij #error include 'stdafx.h' before including this file for PCH
=
cQK^$6( #endif
uW4)DT9[5 #include "resource.h" // main symbols
5,Rxc= class CHookApp : public CWinApp
NL`}rj {
8x":7 yV& public:
"&!7wH ,A CHookApp();
}XHB7, // Overrides
!j8.JP}!) // ClassWizard generated virtual function overrides
j~DTvWg<Jl //{{AFX_VIRTUAL(CHookApp)
]k0Pe;< public:
YO&=fd* virtual BOOL InitInstance();
i3
?cL4 virtual int ExitInstance();
n[|*[II //}}AFX_VIRTUAL
K,B qVu //{{AFX_MSG(CHookApp)
i{T mn // NOTE - the ClassWizard will add and remove member functions here.
1{%3OG^' // DO NOT EDIT what you see in these blocks of generated code !
I$yFCd Xr //}}AFX_MSG
LTsX{z DECLARE_MESSAGE_MAP()
EL/~c*a/ };
C=k]g LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
s0EF{2<F BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
OGA_3|[S BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
.AHf]X0 BOOL InitHotkey();
')G,+d^ BOOL UnInit();
b3j?@31AD #endif
0<ze'FbV] 04o>POR //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
K14FY2" #include "stdafx.h"
u?Pec:3% #include "hook.h"
[2~^~K #include <windowsx.h>
d `eX_] Z #ifdef _DEBUG
b({K6#?'[ #define new DEBUG_NEW
S1d^mu #undef THIS_FILE
:`jB1rI static char THIS_FILE[] = __FILE__;
/2s=;tA1 #endif
Hsdcv~Xr;l #define MAX_KEY 100
19#s:nt9 #define CTRLBIT 0x04
1:Sq?=& #define ALTBIT 0x02
nr*nX #define SHIFTBIT 0x01
yzH(\ x #pragma data_seg("shareddata")
3haR/YN HHOOK hHook =NULL;
)~>
C1< UINT nHookCount =0;
d2~*fHx_! static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
%?sPKOh3N} static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
q7#4e?1 static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
g]$e-X@k static int KeyCount =0;
+mu.W
r static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
| XGj97#M #pragma data_seg()
S1vUP5cZ HINSTANCE hins;
NUN~T ( void VerifyWindow();
5I`_SOa! BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
'?gF9: //{{AFX_MSG_MAP(CHookApp)
Qq7%{`<} // NOTE - the ClassWizard will add and remove mapping macros here.
]?un'$%e // DO NOT EDIT what you see in these blocks of generated code!
fpPB_P{Ua //}}AFX_MSG_MAP
t ZL|;K END_MESSAGE_MAP()
#B$r|rqamq s!g06F CHookApp::CHookApp()
59R%g .2Y {
>Tf <8r, // TODO: add construction code here,
Hoj'zY // Place all significant initialization in InitInstance
qpEK36Js }
XJSI/jpa@ &mPR[{ CHookApp theApp;
;#/Uo8 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
/l%+l@ {
w/49O;r V BOOL bProcessed=FALSE;
#{8t
?v l if(HC_ACTION==nCode)
+|K/*VVn` {
[gkOwU=? if((lParam&0xc0000000)==0xc0000000){// Key up
Zws[C switch(wParam)
|a|##/ {
S Boi| case VK_MENU:
0F5QAR
O MaskBits&=~ALTBIT;
,5XDH6L1 break;
H~1o^
gU case VK_CONTROL:
W Te1E, M MaskBits&=~CTRLBIT;
lj US-6 break;
\D5_g8m:
case VK_SHIFT:
F?c:
).g MaskBits&=~SHIFTBIT;
1m{c8Z.h/d break;
dq4t@:\o0 default: //judge the key and send message
O>c2*9PM break;
SB)Hz8< }
N5F+h94z] for(int index=0;index<MAX_KEY;index++){
AMSn^75 if(hCallWnd[index]==NULL)
Io*mFa? continue;
b/]@G05>> if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
1nZ7xCDK98 {
4qKMnYR SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
ETQL,t9m bProcessed=TRUE;
cT.8&EEW }
IxU#x* }
L?&Trq7i }
Z,QSbw@,7 else if((lParam&0xc000ffff)==1){ //Key down
QUb#84 switch(wParam)
CubBD+hl* {
#I-qL/Lm case VK_MENU:
E]gy5y MaskBits|=ALTBIT;
krSOS WJ break;
TjWMdoU$J case VK_CONTROL:
8h{;*Wr- MaskBits|=CTRLBIT;
W5U;{5 break;
!#TM%w case VK_SHIFT:
X B[C&3I MaskBits|=SHIFTBIT;
Fu*Qci1Z break;
E/Adi^ default: //judge the key and send message
/zTx+U.\I break;
oFDJwOJ'Bj }
/8[T2Z! for(int index=0;index<MAX_KEY;index++)
'iikcf*)C {
+*=?0 \ if(hCallWnd[index]==NULL)
dz"HO!9 continue;
#+SdX[N if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
( jtkY_ {
dMDSyd<( SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
@ sG5Do bProcessed=TRUE;
Bc1MKE5 }
KKGwMJku} }
|n~Vpy }
K-6+fgeB if(!bProcessed){
rrc>O*>{i for(int index=0;index<MAX_KEY;index++){
[W--%=Ou if(hCallWnd[index]==NULL)
w@ $_2t continue;
x)prI6YMv\ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
&?0hj@kd~ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
wrEYbb }
2`cVi"U }
W't.e0L<6 }
IEQ6J}L return CallNextHookEx( hHook, nCode, wParam, lParam );
12 S[m~L% }
N,?D<NjXl dY$jg BOOL InitHotkey()
_/RP3" # {
^SJa/I EZ. if(hHook!=NULL){
|X0Ys8f nHookCount++;
mP+rPDGp return TRUE;
0qk.NPMB0 }
<^YZ#3~1T else
nH(Hk%~ hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
!k0t
(. if(hHook!=NULL)
L~} 2&w nHookCount++;
X0zE-h6P return (hHook!=NULL);
TM$Ek^fQ. }
w*qmC<D$A BOOL UnInit()
I3D#wXW {
//H3{^{ if(nHookCount>1){
ba"a!#wA nHookCount--;
xO XCCf/ return TRUE;
t.]c44RY }
!Z`xwk"! BOOL unhooked = UnhookWindowsHookEx(hHook);
`^1&Qz> if(unhooked==TRUE){
[0-zJy|, nHookCount=0;
gA~faje hHook=NULL;
i \u"+:j }
^`Qh*:T$ return unhooked;
}RY&f4&GV, }
J6*B=PX=( Ykt(%2L BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
n+;PfQ| {
Bl8&g]dk BOOL bAdded=FALSE;
:O{oVR for(int index=0;index<MAX_KEY;index++){
xrky5[XoD if(hCallWnd[index]==0){
^><B5A>; hCallWnd[index]=hWnd;
,O}2LaK.O HotKey[index]=cKey;
YcJ2Arml HotKeyMask[index]=cMask;
js8GK bAdded=TRUE;
"K*+8IO2 KeyCount++;
^jMo?Zwy break;
+gsk}>" }
DU:
sQS4 }
S&m5]h!D return bAdded;
Le':b2o }
B\a#Vtyut !B\[Q$ BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
L~~Dj:%uq {
gHzjI[WI BOOL bRemoved=FALSE;
L7qlvS Q for(int index=0;index<MAX_KEY;index++){
>5!/&D.q if(hCallWnd[index]==hWnd){
jw!QjVuRN% if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
BA+:}81&<q hCallWnd[index]=NULL;
vaEAjg*To< HotKey[index]=0;
e{x|d?)8 HotKeyMask[index]=0;
|Zo_x}0 bRemoved=TRUE;
R(sa.Q\D4 KeyCount--;
8!AMRE break;
p3r1lUw }
f{[,!VG }
\w=7L-
8 }
oNV(C'A return bRemoved;
@5# RGM)5^ }
=7Y gES 4$+9k;m' void VerifyWindow()
<AB.`[" {
Q,A`"e#: for(int i=0;i<MAX_KEY;i++){
iAlFgOk' if(hCallWnd
!=NULL){ V6ioQx=K#
if(!IsWindow(hCallWnd)){ NR)[,b\v
hCallWnd=NULL; CQcb !T
HotKey=0; 6c>tA2G|8
HotKeyMask=0; !OJSQB,
KeyCount--; YMx
zj
} ;Q.g[[J/p
} {@u}-6:wAT
} 8c'0"G@S
} %KmB>9
_(\\>'1q!
BOOL CHookApp::InitInstance() ].2it{gF?b
{ = *A_{u;E
AFX_MANAGE_STATE(AfxGetStaticModuleState()); rHtT>UE=
hins=AfxGetInstanceHandle(); C9}2F{8
InitHotkey(); PHa#;6!5
return CWinApp::InitInstance(); uhLg2G^h
} ^JMSe-
:6z0Ep"
int CHookApp::ExitInstance() BVC{Zq6hi
{ :l>T~&/98
VerifyWindow(); cF[[_
UnInit(); B|O/h!H.
return CWinApp::ExitInstance(); qpl "j-
} ~j\/3;^s
FZ^byIS[
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file ?mt$c6-
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) Ffm Q$>S
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ B!le=V,@,
#if _MSC_VER > 1000 =P+S]<O
#pragma once vAJfMUlP
#endif // _MSC_VER > 1000 z~oGd,
Ac.z6]p
class CCaptureDlg : public CDialog }#
-N7=h
{ 9_ Qm_
// Construction <][|,9mw
public: R^F99L
BOOL bTray; %;zWS/JhL
BOOL bRegistered; 7q|(ZZa
BOOL RegisterHotkey(); M{7EFTy!y
UCHAR cKey; nu$LWC-
UCHAR cMask; `z3?ET
void DeleteIcon(); kx1-.~)p(z
void AddIcon(); d~|qx
UINT nCount; _V{WXsOx(
void SaveBmp(); =dX*:An
CCaptureDlg(CWnd* pParent = NULL); // standard constructor /:e|B;P`k
// Dialog Data .#h]_%
//{{AFX_DATA(CCaptureDlg) 3MjMN %{P
enum { IDD = IDD_CAPTURE_DIALOG }; ;:9 x.IkxC
CComboBox m_Key; xsFW F*HPs
BOOL m_bControl; (cYc03"
BOOL m_bAlt; &/\0_CoTR\
BOOL m_bShift; (U`7[F
CString m_Path; X5U!25d]
CString m_Number; 5H 1(C#|
//}}AFX_DATA nL+*Ja
// ClassWizard generated virtual function overrides }M|
//{{AFX_VIRTUAL(CCaptureDlg) IFPywL{K
public: !4jS=Lhe>
virtual BOOL PreTranslateMessage(MSG* pMsg); fV}\
protected: m ]K.0E
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support =10t3nA1$
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); -"a+<(Y
//}}AFX_VIRTUAL &,&+/Sr11
// Implementation @R2|=ox
protected: @-b}iP<T
HICON m_hIcon; H[,.nH_>+
// Generated message map functions >M:5yk@
//{{AFX_MSG(CCaptureDlg) 4g1u9Sc0
virtual BOOL OnInitDialog(); K)Db3JIIk
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); fJE ki>1
afx_msg void OnPaint(); ooZ7HTP|
afx_msg HCURSOR OnQueryDragIcon(); il-&d]AP
virtual void OnCancel(); Y\p
yl
afx_msg void OnAbout(); Gcs+@7!b
afx_msg void OnBrowse(); RV(}\JU
afx_msg void OnChange(); +Kq>r|;
//}}AFX_MSG h'-TZXs0e1
DECLARE_MESSAGE_MAP() 2|%30i,vV
}; ^1cqx]>E
#endif Y5MHd>m
m'qMcCE
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file ^m1Rw|
#include "stdafx.h" {J0^S
#include "Capture.h" !)9zH
#include "CaptureDlg.h" L8j,?u#
#include <windowsx.h> C}1(@$
#pragma comment(lib,"hook.lib") iD(K*[;lc
#ifdef _DEBUG #Y18z5vo
#define new DEBUG_NEW z|b4w7I
#undef THIS_FILE &6\rKOsn
static char THIS_FILE[] = __FILE__; y
ph
#endif p[o2F5 T2
#define IDM_SHELL WM_USER+1 #^v5Eo
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); 3mJHk<m8T
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); ]owH [wvX
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; A:NY:#uC
class CAboutDlg : public CDialog 56bB~=c
{ Dea;9O
public: F'#3wCzt
CAboutDlg(); . t3@86xTJ
// Dialog Data 2#!$f_
//{{AFX_DATA(CAboutDlg) ADBw" ? >
enum { IDD = IDD_ABOUTBOX }; S,8zh/1y
//}}AFX_DATA u%h<5WNh<
// ClassWizard generated virtual function overrides 5%>U.X?i
//{{AFX_VIRTUAL(CAboutDlg) _>`0!mG
protected: yQx>h6
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support ;:!LAe
//}}AFX_VIRTUAL 2hpx%H
// Implementation u\E.H5u27
protected: f(_qcgXp
//{{AFX_MSG(CAboutDlg) 1Xs!ew)>
//}}AFX_MSG e.jgV=dT-
DECLARE_MESSAGE_MAP() +'Ge?(E4_
}; <K0lS;@K
Sc0ZT/Lm
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) MYx*W7X
{ F@I_sGCcb
//{{AFX_DATA_INIT(CAboutDlg) Va 5U`0
//}}AFX_DATA_INIT Yr31GJ}K
} SUVr&S6Nk
& aLR'*]6
void CAboutDlg::DoDataExchange(CDataExchange* pDX) OKU P
{ 9]YmP8
CDialog::DoDataExchange(pDX); cQ8:;-M
//{{AFX_DATA_MAP(CAboutDlg) y1'/@A1
//}}AFX_DATA_MAP 53T2w,?
} 2~@=ua[|=5
sS|zz,y
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) 4Ek<
5s[
//{{AFX_MSG_MAP(CAboutDlg) YW}/C wB
// No message handlers 95<:-?4C;W
//}}AFX_MSG_MAP 08`
@u4
END_MESSAGE_MAP() @E)XT\;3
^$L/Mv+
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) zR
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: CDialog(CCaptureDlg::IDD, pParent) 7RLh#D|
{ )} #r"!
//{{AFX_DATA_INIT(CCaptureDlg) ]d[q:N]z
m_bControl = FALSE; +|?c_vD
m_bAlt = FALSE; |s^ar8)=)
m_bShift = FALSE; >r*Zm2($MR
m_Path = _T("c:\\"); s=nds"J
m_Number = _T("0 picture captured."); kp$ILZ
nCount=0; #X8[g _d/
bRegistered=FALSE; TXa XJIp
bTray=FALSE; P:=ADW c
//}}AFX_DATA_INIT B';Ob
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 ]@P*&FRcZ
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); DEs?xl]zO
} /{U{smtdFl
%G@aZWk
Sa
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) @$*c0.
|z
{ S&Sf}uK
CDialog::DoDataExchange(pDX); zXD@M{
//{{AFX_DATA_MAP(CCaptureDlg)
4[ra
DDX_Control(pDX, IDC_KEY, m_Key); L~$RF {$
DDX_Check(pDX, IDC_CONTROL, m_bControl); 8j$q%g
DDX_Check(pDX, IDC_ALT, m_bAlt); 3q>"#+R.t
DDX_Check(pDX, IDC_SHIFT, m_bShift); ; M(}fV]
DDX_Text(pDX, IDC_PATH, m_Path); [Ok8l='
DDX_Text(pDX, IDC_NUMBER, m_Number); 'KL(A-}!
//}}AFX_DATA_MAP \\qg2yI
} ?*@h]4+k'
dF,FH-
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) 5^dw!^d
//{{AFX_MSG_MAP(CCaptureDlg) C;5}/J^E
ON_WM_SYSCOMMAND() 1fy{@j(W
ON_WM_PAINT() =FbfV*K9
ON_WM_QUERYDRAGICON() pUr[MnQLf
ON_BN_CLICKED(ID_ABOUT, OnAbout) 7" [;M
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) ts]7 + 6V
ON_BN_CLICKED(ID_CHANGE, OnChange) .9xGLmg
//}}AFX_MSG_MAP ' 7A7HDJ
END_MESSAGE_MAP() _#O?g=1
FCWphpz
BOOL CCaptureDlg::OnInitDialog() (Gn[T1p?
{ +Xp;T`,v
CDialog::OnInitDialog(); -AT@M1K7%
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); zT% kx:Fk
ASSERT(IDM_ABOUTBOX < 0xF000); =/;_7|ssd
CMenu* pSysMenu = GetSystemMenu(FALSE); P1QJ'eC;T
if (pSysMenu != NULL) `O{Uz?#*x
{ "!tB";n
CString strAboutMenu; Mb>XM7}PU
strAboutMenu.LoadString(IDS_ABOUTBOX); 1I`D$Xq~:
if (!strAboutMenu.IsEmpty()) 3(:mRb}
{ v,+@
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pSysMenu->AppendMenu(MF_SEPARATOR); C\^K6,m5
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); I/aAx.q
} _iu|*h1y
} rieQ&Jt"
SetIcon(m_hIcon, TRUE); // Set big icon ?N
ga
SetIcon(m_hIcon, FALSE); // Set small icon |
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e
m_Key.SetCurSel(0); qM0MSwvC=
RegisterHotkey(); +joE
CMenu* pMenu=GetSystemMenu(FALSE); 1Tq$ E[
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); &EPEpN
R
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); v~\ 45eEA
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); ([Aq
return TRUE; // return TRUE unless you set the focus to a control ry
?2 o!
} @:&+wq_>A^
O[y`'z;C
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) C=IH#E=
{ ?C:fP`j:
if ((nID & 0xFFF0) == IDM_ABOUTBOX) kA4ei
{ ~@D%qbN
CAboutDlg dlgAbout; ;ZJ,l)BNO
dlgAbout.DoModal(); PHvjsA%"
} /09=Tyy/\
else \6 hL W_q1
{ `5Btg.
&
CDialog::OnSysCommand(nID, lParam); hD1AK+y
} Wts{tb
} `4bd,
(J&Xo.<Z-
void CCaptureDlg::OnPaint() mM*yv
{ lrhAO"/1
if (IsIconic()) k+[KD >;1
{ nY9qYFw
CPaintDC dc(this); // device context for painting Nr9[Vz?$P
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); gKN_~{{OD
// Center icon in client rectangle \bic.0-
int cxIcon = GetSystemMetrics(SM_CXICON); Wp}9%Mq~Jy
int cyIcon = GetSystemMetrics(SM_CYICON); \`&pk-uW
CRect rect; P(epG?Qg
GetClientRect(&rect); _}@n_E
int x = (rect.Width() - cxIcon + 1) / 2; Wk?|BR]O
int y = (rect.Height() - cyIcon + 1) / 2; Vb^s 'k
// Draw the icon 4i/q^;`
dc.DrawIcon(x, y, m_hIcon); 0>=)
} J&:W4\ m
else $
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{ Hi_Al,j:
CDialog::OnPaint(); RYl3txw
} vvAk<[
} NP`s[
15o.j!S
HCURSOR CCaptureDlg::OnQueryDragIcon() _c8.muQ<
{ 82za4u$q#
return (HCURSOR) m_hIcon; 3:joSQa
} )8 :RiG2B
xH_ie
void CCaptureDlg::OnCancel() u)`|q_y+8
{ :{:?D\%6
if(bTray) :ECK
$Cu
DeleteIcon(); 5
?~-Vv31s
CDialog::OnCancel(); "42$AaS
} o
U}t'WU
>zg8xA1zL
void CCaptureDlg::OnAbout() &]6K]sWJK{
{ (4ci=*3=
CAboutDlg dlg; J(0 =~Z[
dlg.DoModal(); :F>L;mp
} u45h{i-e
o|qeh<2=x
void CCaptureDlg::OnBrowse() U.Chf9a-
{ 5u)^FIBj
CString str; {0vbC/?]
BROWSEINFO bi; EO/cW<uV'
char name[MAX_PATH]; RO$@>vL
ZeroMemory(&bi,sizeof(BROWSEINFO)); (
ssH=a
bi.hwndOwner=GetSafeHwnd(); 1gShV ]2
bi.pszDisplayName=name; o\ow{gh9
bi.lpszTitle="Select folder"; ,eeL5V
bi.ulFlags=BIF_RETURNONLYFSDIRS; +%}5{lu_e
LPITEMIDLIST idl=SHBrowseForFolder(&bi); B N*,!fx
if(idl==NULL) 3cfZ!E~^kc
return; CESe}^)n
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); Wytvs*\`
str.ReleaseBuffer(); EkStb#
m_Path=str; rfXF 01I
if(str.GetAt(str.GetLength()-1)!='\\') "UoCT7X
m_Path+="\\"; )fd-IYi-3
UpdateData(FALSE); Rhv".epz
} t6bWSz0
!
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void CCaptureDlg::SaveBmp() DA MpR3
{ h w ;d m
CDC dc; *T>#zR{
dc.CreateDC("DISPLAY",NULL,NULL,NULL); ;8L+_YCa
CBitmap bm; ADyNNMcx
int Width=GetSystemMetrics(SM_CXSCREEN); Tt <-<oyU.
int Height=GetSystemMetrics(SM_CYSCREEN); _WDBG
bm.CreateCompatibleBitmap(&dc,Width,Height); 0J:U\S
CDC tdc; <[3lV)~t
tdc.CreateCompatibleDC(&dc); UQ$\
an'
CBitmap*pOld=tdc.SelectObject(&bm); ;%rs{XO9
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); oX2DFgz
tdc.SelectObject(pOld); lYZ@a4TA
BITMAP btm; }U?gKlLg
bm.GetBitmap(&btm); p21=$?k!;
DWORD size=btm.bmWidthBytes*btm.bmHeight;
krr-ZiK
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); mU?&\w=v$
BITMAPINFOHEADER bih; 3\p]esse
bih.biBitCount=btm.bmBitsPixel; p~,3A:i
bih.biClrImportant=0; zfjD b
bih.biClrUsed=0; t)oES>W1
bih.biCompression=0; (ciGLfNG
bih.biHeight=btm.bmHeight; K^,&ub.L)
bih.biPlanes=1; cu479VzPx:
bih.biSize=sizeof(BITMAPINFOHEADER); n^JUZ8
bih.biSizeImage=size; Pzk[^z$C
bih.biWidth=btm.bmWidth; MOp=9d+N~
bih.biXPelsPerMeter=0; @dE 3
bih.biYPelsPerMeter=0; dS3>q<J*a
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); o}mhy`}
static int filecount=0; e<L 9k}c
CString name; w~Tq|kU[
name.Format("pict%04d.bmp",filecount++); ZM-/n>
name=m_Path+name; VRd:2uDS
BITMAPFILEHEADER bfh; 2w x[D
bfh.bfReserved1=bfh.bfReserved2=0; ~b>nCP8q
bfh.bfType=((WORD)('M'<< 8)|'B'); ;Z!~A"~$>
bfh.bfSize=54+size; 5&n988gC8
bfh.bfOffBits=54; NWQPOq#
CFile bf; p-T~x$"c|
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ m0BG9~p|
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); %/tGkS6
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); w>z8c3Dq}
bf.WriteHuge(lpData,size); x;ERRK
bf.Close(); ^B<PD]
nCount++; =0C l
} q*F~~J!P
GlobalFreePtr(lpData); ]} 5I>l
if(nCount==1) ++T
"+p
m_Number.Format("%d picture captured.",nCount); d6t)gG*5
else H;TOPtt2
m_Number.Format("%d pictures captured.",nCount); 33{;[/4
UpdateData(FALSE); qXP1Q3
} 7E!";HT
M]6w^\4j9
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) k Z+ q
{ vu_>U({.
T
if(pMsg -> message == WM_KEYDOWN) fw1;i
{ v|4STR
if(pMsg -> wParam == VK_ESCAPE) nxn[ ~~
return TRUE; vk4C_8m
if(pMsg -> wParam == VK_RETURN) DJ1XNpm
return TRUE; b[{m>Fa+o#
} 4hsPbUx9
return CDialog::PreTranslateMessage(pMsg); /@9-!cL
} .^[fG59
Jo7fxWO_g
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) DU/9/ I?~
{ 2_oK5*j
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ nu469
SaveBmp(); t5ny"k!
return FALSE; lQp89*b?=U
} AND7jEn
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ R\9>2*w
CMenu pop; (!3Yc:~RE
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); {~j /XB
CMenu*pMenu=pop.GetSubMenu(0); aWHd}%
pMenu->SetDefaultItem(ID_EXITICON); 2p$n*|T&c
CPoint pt; \yJZvhUk
GetCursorPos(&pt); v{mv*`~nA\
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); EFa{O`_@U
if(id==ID_EXITICON) VL_)]LR*)
DeleteIcon(); 4f{[*6 GX
else if(id==ID_EXIT) 4cXAT9
OnCancel(); b[J-ja.
return FALSE; Eonq'Re$
} %K&+~CJE
LRESULT res= CDialog::WindowProc(message, wParam, lParam); %mK3N2N$
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) 8~&F/C*
AddIcon(); l]a^"4L4`o
return res; lF;ziF
}
Z #.GI
i#L6UKe:Q
void CCaptureDlg::AddIcon() _9Dn\=g
{ "jl1.Ah
NOTIFYICONDATA data; {&\J)oZ
data.cbSize=sizeof(NOTIFYICONDATA); @K,2mhE~h
CString tip; pTa'.m
tip.LoadString(IDS_ICONTIP); nu4Pc
data.hIcon=GetIcon(0); otWo^CE$
data.hWnd=GetSafeHwnd(); a^RZsR
strcpy(data.szTip,tip); U=haXx4N
data.uCallbackMessage=IDM_SHELL; cwH,l$
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; ,X9hl J
data.uID=98; th.M.jas
Shell_NotifyIcon(NIM_ADD,&data); k1^V?O
ShowWindow(SW_HIDE); S`pF7[%rp
bTray=TRUE; !6XvvTs/<
} L"""\5Bn(
$Qn&jI38
void CCaptureDlg::DeleteIcon() g6rv`I$l
{ RE ![O
NOTIFYICONDATA data; Du)B9s
data.cbSize=sizeof(NOTIFYICONDATA); T$gkq>!j<E
data.hWnd=GetSafeHwnd(); KW&nDu