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:
s} ;{ZAtE
*vxk@`K~ 一、实现方法
D=Gtq6jd ]neex|3lG 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:
G 4X|Bka S`0(*A[W* #pragma data_seg("shareddata")
-;m0R HHOOK hHook =NULL; //钩子句柄
E,U+o $ UINT nHookCount =0; //挂接的程序数目
!)0;&e5 static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
OKR
"4n: static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
pJ"qu,w static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
NP3y+s static int KeyCount =0;
.}TZxla0Zr static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
6j]0R*B7`Q #pragma data_seg()
[!#L6&:a8 <)c)%'v 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。
k"zv~`i' h2]P]@nW;W 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:
{ @{']Y k2tF} BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
}@q`%uzi cKey,UCHAR cMask)
G@X% +$I {
joAv{Tc BOOL bAdded=FALSE;
R"t,xM for(int index=0;index<MAX_KEY;index++){
1 bU,$4 if(hCallWnd[index]==0){
,m|h<faZL hCallWnd[index]=hWnd;
c]o'xd,T8\ HotKey[index]=cKey;
D.u{~ HotKeyMask[index]=cMask;
0-Ku7<a bAdded=TRUE;
^A&1^B KeyCount++;
$Sip$\+* break;
>tV{Pd1 }
+lcbi }
)}Kf= return bAdded;
Jk
n>S#SZ }
3~{:`[0Q //删除热键
"`e{/7I BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
6 V=9M: {
mNTzUoZF'@ BOOL bRemoved=FALSE;
;$wVu|& for(int index=0;index<MAX_KEY;index++){
!?h;wR if(hCallWnd[index]==hWnd){
^k">A:E2 if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
3bH'H*2 hCallWnd[index]=NULL;
}9OC,Y8?D HotKey[index]=0;
j6 z^Tt12 HotKeyMask[index]=0;
&@OT*pNna bRemoved=TRUE;
x
g KeyCount--;
vXZOy%$o break;
;dgp+ }
0GCEqQy8 }
-C]5>& W }
>KhOz[Zg return bRemoved;
CkQ3#L <2 }
_)m]_eS._ 0 /U{p,r6` K is"L(C DLL中的钩子函数如下:
yWo; a I1M%J@ Cz LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
[waIi3Dv\ {
`b7t4d* BOOL bProcessed=FALSE;
Iit;F if(HC_ACTION==nCode)
Eo]xNn/g {
2pa5U;u:+ if((lParam&0xc0000000)==0xc0000000){// 有键松开
4>e&f&y~ switch(wParam)
c<Tf
2]vZE {
7ZWgf"1j case VK_MENU:
y766;
X:J MaskBits&=~ALTBIT;
lq;Pch break;
8'io$6d= case VK_CONTROL:
hMD|#A-< MaskBits&=~CTRLBIT;
SoSb+\*@h break;
KB(8f* case VK_SHIFT:
M%P:n/j MaskBits&=~SHIFTBIT;
)1`0PJoHE break;
w_K1]<Q* default: //judge the key and send message
.p"
xVfi6 break;
$DaNbLV }
r52gn(, for(int index=0;index<MAX_KEY;index++){
6mxfLlZ if(hCallWnd[index]==NULL)
; )@~ continue;
_F|Ek ;y% if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
(gWm,fI
RZ {
1^JS Dd SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
cU!vsdR3 bProcessed=TRUE;
o`z]|G1'' }
@<EO`L)Z }
Z o(rTCZX }
e1Hgw[l` else if((lParam&0xc000ffff)==1){ //有键按下
JOeeU8C switch(wParam)
H8}oIA"b {
@Qt{jI! case VK_MENU:
$}<e|3_ MaskBits|=ALTBIT;
k>si5'W break;
_g"<UV*H case VK_CONTROL:
i2SR{e8:GF MaskBits|=CTRLBIT;
H9Q&tl9 break;
O5T{eBo\ case VK_SHIFT:
p}U ~+:v MaskBits|=SHIFTBIT;
Yufc{M00 break;
$suzW;{# default: //judge the key and send message
B>P{A7Q break;
}y gD3:vN7 }
vy:Z /1q for(int index=0;index<MAX_KEY;index++){
U26}gT) if(hCallWnd[index]==NULL)
5vnrA'BhBU continue;
4zFW-yy if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
@*KZ}i@._ {
5#E`=C% SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
&`2)V;t bProcessed=TRUE;
8$Y9ORs4 }
$X,D( }
(V2fRv }
f
x+/C8GK if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
iSs:oH3l for(int index=0;index<MAX_KEY;index++){
ri-b=|h2j if(hCallWnd[index]==NULL)
1\I}2; continue;
q9s=~d7 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
;vjOUn[E SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
6?c7$Y //lParam的意义可看MSDN中WM_KEYDOWN部分
NU2;X (z[ }
)MTOU47U }
#Ki[$bS~6 }
28d'7El$ return CallNextHookEx( hHook, nCode, wParam, lParam );
rf{rpe$ }
?hy& m^;f(IK5 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:
Q*ft7$l& }b.%Im<3R BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
v"Es*-{B BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
U
z>+2m( s|r3Gv|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:
h>m"GpF
x k~1?VQ+?M LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
>}6%#CAf {
draN0vf if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
wNd isI {
V)N%WXG //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
kc&U'&RgY SaveBmp();
\(2sW^fY return FALSE;
sD#.Oq4&]y }
.U]-j\ …… //其它处理及默认处理
49HZ2`Y }
pIqeXY -PR N:'T v mk2{f,g 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。
r3UUlR/Do ln
dx"prW 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。
^^D0^k!R F0@gSurg) 二、编程步骤
k\?Ii<m &0JI!bR( 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";
k@W1-D? U&p${IcEm 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
nb%6X82Q [MY|T<q 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;
|Z += =Jb>x#Y 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;
%n9aaoD vUM4S26"NT 5、 添加代码,编译运行程序。
P+/e2Y zIAD9mQex 三、程序代码
$1`2kM5 cSV aI ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
A2Gevj?F$ #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
s!$7(Q86R #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
XZd,&YiaG #if _MSC_VER > 1000
f._ua>v,f #pragma once
_xhax+,! ~ #endif // _MSC_VER > 1000
{3aua:q #ifndef __AFXWIN_H__
-ZLJeY L #error include 'stdafx.h' before including this file for PCH
#KZBsa@p #endif
_.8S& #include "resource.h" // main symbols
/IMFO:c class CHookApp : public CWinApp
$qj2w"' {
I
b5rqU\ public:
E~"y$Fqe CHookApp();
o?\?@H // Overrides
/%io+94 // ClassWizard generated virtual function overrides
tY4;F\e2|A //{{AFX_VIRTUAL(CHookApp)
~Z'?LV<t public:
fI|Nc virtual BOOL InitInstance();
d7bS
wL virtual int ExitInstance();
i=2N;sAl //}}AFX_VIRTUAL
R4:b{ )=O //{{AFX_MSG(CHookApp)
3(80:@| // NOTE - the ClassWizard will add and remove member functions here.
f4|rVP|x // DO NOT EDIT what you see in these blocks of generated code !
qUb& //}}AFX_MSG
t"oeQ*d% DECLARE_MESSAGE_MAP()
I-l_TpM) };
X=&KayD LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
hp|YE'uYT BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
I%KYtv~` BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
e+fN6v5pU BOOL InitHotkey();
?%[jR=w BOOL UnInit();
?4T-@~~*`= #endif
ysY*k` 5 lL0APT; //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
IJcsmNWm #include "stdafx.h"
6.yu-xm #include "hook.h"
x7 ,5 #include <windowsx.h>
|P?*5xPB #ifdef _DEBUG
- 1gVeT& #define new DEBUG_NEW
.(k|wX[Fu~ #undef THIS_FILE
%d9uTm; static char THIS_FILE[] = __FILE__;
eTcd"Kd/ #endif
S3Jo>jXS " #define MAX_KEY 100
{E|$8)58i #define CTRLBIT 0x04
(TT}6j #define ALTBIT 0x02
\ @2R9,9E #define SHIFTBIT 0x01
+ami?#Sz*; #pragma data_seg("shareddata")
DZtsy!xA HHOOK hHook =NULL;
[ub e6 UINT nHookCount =0;
!R`{ TbN static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
~*];pV]A[ static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
$6R-5oQ static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
5]:U9ts# static int KeyCount =0;
}i&/G+_ static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
JNnDts*w #pragma data_seg()
O5BYD=7 HINSTANCE hins;
gw<q.XL void VerifyWindow();
$VOFOc BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
\1M4Dl5! //{{AFX_MSG_MAP(CHookApp)
_;\_l // NOTE - the ClassWizard will add and remove mapping macros here.
M/`lM$98: // DO NOT EDIT what you see in these blocks of generated code!
}W^A*]X //}}AFX_MSG_MAP
('+d.F[109 END_MESSAGE_MAP()
F#5~M<`.o yyTnL 2Y9 CHookApp::CHookApp()
R[]Mdt< {
EQSQFRk; // TODO: add construction code here,
jq0O22
-R // Place all significant initialization in InitInstance
W: z;|FF }
Q\sK"~@3 ]JQULE) CHookApp theApp;
$U-0)4yf LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
vo{--+{ky! {
!&@615Vtw BOOL bProcessed=FALSE;
4 s9LB if(HC_ACTION==nCode)
- " 9 {
;*2Cm'8E if((lParam&0xc0000000)==0xc0000000){// Key up
}4X0epPp;: switch(wParam)
]7c=PC {
R`-S/C case VK_MENU:
-jmY)(\ MaskBits&=~ALTBIT;
zX i'kB break;
A?OQE9' case VK_CONTROL:
JC}D`h MaskBits&=~CTRLBIT;
|-~Y#] break;
Pr
C{'XDlU case VK_SHIFT:
a(ZcmYzXU MaskBits&=~SHIFTBIT;
y$M%2mh` break;
=:U`k0rn! default: //judge the key and send message
+:/%3}` break;
<
I``&>
}
as=fCuJ for(int index=0;index<MAX_KEY;index++){
%^6F_F_jS if(hCallWnd[index]==NULL)
{?7Uj continue;
w_V P
J if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
b*lkBqs$ {
YtLt*Ig% SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
7F~X,Dk_ bProcessed=TRUE;
9}
.z;prz }
es0hm2HT3 }
XQw9~$ }
)0k53-h& else if((lParam&0xc000ffff)==1){ //Key down
}c:M^Ff switch(wParam)
3Tm+g2w2V8 {
d2L&Z_} case VK_MENU:
bpa?C MaskBits|=ALTBIT;
3=V&K- break;
'dc#F3 case VK_CONTROL:
ZS o) MaskBits|=CTRLBIT;
e]$s
t? break;
o^wqFX(Y case VK_SHIFT:
X2"/%!65{ MaskBits|=SHIFTBIT;
>/6 _ ^ break;
{id4:^u&; default: //judge the key and send message
u)Whr@m break;
8H`[*|{' }
GTxk%
for(int index=0;index<MAX_KEY;index++)
MiX 43Pk] {
4Wp=y if(hCallWnd[index]==NULL)
uhq8 continue;
bcz:q/f}@ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
9:lFo= {
-trkA'ewZ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
F((4U"
bProcessed=TRUE;
_)iCa3z }
An0GPhC }
tX~w{|k }
cm+P]8o%{ if(!bProcessed){
i"=\d for(int index=0;index<MAX_KEY;index++){
1=v*O.XW` if(hCallWnd[index]==NULL)
=-Ck4e *T continue;
62NsJ<#> if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
PQE=D0 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
:rP=t , }
Zj
Z^_X3 }
iU:cW=W|M\ }
?\n>
AC return CallNextHookEx( hHook, nCode, wParam, lParam );
\
B%+fw }
y>ktcuML )O6>*wq BOOL InitHotkey()
z0Z%m@ {
7-V/RChBm if(hHook!=NULL){
!p/goqT~dY nHookCount++;
.jK4?}] return TRUE;
tT._VK]o&R }
Ew$C
;&9 else
@'|~v<<WZ hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
6wg^FD_Q if(hHook!=NULL)
f?)-}\[IR{ nHookCount++;
Ws12b$ return (hHook!=NULL);
5Ynd c)Z }
UGatWj BOOL UnInit()
$Ygue5{c {
*OQ2ucC8j if(nHookCount>1){
"EJ~QCW*Yh nHookCount--;
-ze J#B)C return TRUE;
R^e'}+Z }
K.yb
^dg5 BOOL unhooked = UnhookWindowsHookEx(hHook);
23jwAsSo if(unhooked==TRUE){
IvNT6]6 P nHookCount=0;
iJ|uvPCE hHook=NULL;
K|s,ru }
,tRj4mx return unhooked;
fd9k?,zM }
L\iFNT}g` [KQ6Ta. BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
rW#T
vUn {
lr$zHI7_` BOOL bAdded=FALSE;
N)Z?Z+}h for(int index=0;index<MAX_KEY;index++){
L4l!96]a if(hCallWnd[index]==0){
#|``ca54B hCallWnd[index]=hWnd;
bQ5\ ]5M HotKey[index]=cKey;
Ht&YC<X HotKeyMask[index]=cMask;
-%4,@
x` bAdded=TRUE;
@[v~y"tE} KeyCount++;
,wPr"U+7 break;
~bpgSP" }
=?`c=z3~i$ }
]]Ufas9 return bAdded;
i{qgn%#}Y }
Yoll?_k+ x$(f7?s] 1 BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
8a"%0d# {
xe$_aBU BOOL bRemoved=FALSE;
6d~'$<5on for(int index=0;index<MAX_KEY;index++){
N4HqLh23H if(hCallWnd[index]==hWnd){
d<x7{?~.DK if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
v(%*b,^
hCallWnd[index]=NULL;
-H-~;EzU HotKey[index]=0;
rU(+T0t?I HotKeyMask[index]=0;
0Y5_PTWb+Y bRemoved=TRUE;
S0W||#Pr KeyCount--;
BfiD9ka-z break;
~7Ux@Sx; }
yEQs:v6L~ }
/2VJX@h }
FXU8[j0P_G return bRemoved;
Qe(:|q_ }
ku
M$UYTTX 0Wp|1)ljA void VerifyWindow()
mRK>U$v {
G .4X' for(int i=0;i<MAX_KEY;i++){
]
@fk] ]R if(hCallWnd
!=NULL){ |(^PS8wG
if(!IsWindow(hCallWnd)){ f6"Z'{j
hCallWnd=NULL; ZSm3 XXk
HotKey=0; % %UE+u@J
HotKeyMask=0; Y\'}a+:@Ph
KeyCount--; +x}<IS8
} Fv`,3aNB
} 6;5Ss?ep
} iDrZc
} Q=yg8CQ
;YL i{
BOOL CHookApp::InitInstance() Z;)%%V%o
{ h2J
x]FJ
AFX_MANAGE_STATE(AfxGetStaticModuleState()); eh#(eua0/
hins=AfxGetInstanceHandle(); vs{s_T7Mz]
InitHotkey(); zT-_5uZQ
return CWinApp::InitInstance(); lU8Hd|@-
} K!l5coM
a7%]Y}$
int CHookApp::ExitInstance() |]*/R^1>2
{ ;i+#fQO7Q
VerifyWindow(); 8DaL,bi*.
UnInit(); ^sWT:BDh
return CWinApp::ExitInstance(); lks!w/yCF
} 8, >P
d m%8K6|
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file ;i:d+!3XwC
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) U~7c+}:c
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ ufT`"i
#if _MSC_VER > 1000 IIx#2r
#pragma once SByW[JE
#endif // _MSC_VER > 1000 @U}1EC{A
H}
g{Cr"Ex
class CCaptureDlg : public CDialog |LKXOU
c
{ DM>eVS3}
// Construction VVOd]2{
public: 3sZ\0P}
BOOL bTray; ,s;UfF
BOOL bRegistered; 5l*&>C[(i
BOOL RegisterHotkey(); G,w(d@
UCHAR cKey; Thit
UCHAR cMask; VY\&8n}e(
void DeleteIcon(); SasJic2M
void AddIcon(); R{T$[$6S
UINT nCount; Xla~Yg
void SaveBmp(); $iz|\m
CCaptureDlg(CWnd* pParent = NULL); // standard constructor _:27]K:
// Dialog Data x-3\Ls[I
//{{AFX_DATA(CCaptureDlg) 0{ R=9wcc
enum { IDD = IDD_CAPTURE_DIALOG }; '2^Q1{ :\
CComboBox m_Key; 6)Lk-D
BOOL m_bControl; :9 ^*
^T
BOOL m_bAlt; kMd.h[X~
BOOL m_bShift; k$^`{6l
CString m_Path; 6!FQzFCZq
CString m_Number; VP]% Hni]
//}}AFX_DATA B^9j@3Ux
// ClassWizard generated virtual function overrides czd~8WgOa
//{{AFX_VIRTUAL(CCaptureDlg) Th%Sjgsn
public: y'*K|aTG
virtual BOOL PreTranslateMessage(MSG* pMsg); -3Vx76Y
protected: 4{`{WI{
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support U/NoP4~{
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); ~qOa\#x_
//}}AFX_VIRTUAL V "h
+L7T
// Implementation @;RXLq/8
protected: V~5jfcd
HICON m_hIcon; OI*Xt`
// Generated message map functions 4r}8lpF_(
//{{AFX_MSG(CCaptureDlg) vRO
_Q?
virtual BOOL OnInitDialog(); @<&m|qtMsz
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); _5N]B|cO
afx_msg void OnPaint(); 8-77d^cprR
afx_msg HCURSOR OnQueryDragIcon(); 'Qe;vZ31K
virtual void OnCancel(); @s2y~0}#
afx_msg void OnAbout(); 'q:`? nJ^
afx_msg void OnBrowse(); :6\qpex
afx_msg void OnChange(); :20W\P<O!A
//}}AFX_MSG CizX<Cr}
DECLARE_MESSAGE_MAP() B&uz;L3
}; 0:Ol7
#endif )P|),S,;Z
6,{$J
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file ZzT9j~
#include "stdafx.h" Y/zj[>
#include "Capture.h" G<v&4/\p`M
#include "CaptureDlg.h" ~M4;
#include <windowsx.h> ,nDaqQ-C!!
#pragma comment(lib,"hook.lib") yaH
Zt`Y
#ifdef _DEBUG YcpoL@ab
#define new DEBUG_NEW rh}J3S5vp
#undef THIS_FILE gSQJJxZ{?
static char THIS_FILE[] = __FILE__; @6T/Tdz
#endif g7W"
#define IDM_SHELL WM_USER+1 |8tilOqI
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); I&W=Q[m
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); FQ5U$x.[P
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; wDe& 1(T^
class CAboutDlg : public CDialog A2jUmK.&
{ q5)O%l !
public: fmDCP kj
CAboutDlg(); PxDh7{
// Dialog Data 81
sG
//{{AFX_DATA(CAboutDlg) x+@rg];m
enum { IDD = IDD_ABOUTBOX }; N5b!.B x-w
//}}AFX_DATA DN5 7p!z
// ClassWizard generated virtual function overrides o:Sa,
!DK
//{{AFX_VIRTUAL(CAboutDlg) &FN.:_E
protected: ckE-",G
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 2a Q[zK
//}}AFX_VIRTUAL 'AS|ZRr/
// Implementation Zba2d,8/
protected: J{fH['tzO
//{{AFX_MSG(CAboutDlg) RdRp.pb8
//}}AFX_MSG l]l'4@1
DECLARE_MESSAGE_MAP() 338k?nHxv
}; GDiBl* D
p4
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CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) n]o<S+z
{ %aVq+kC h
//{{AFX_DATA_INIT(CAboutDlg) x-&@wMqkc
//}}AFX_DATA_INIT QX'qyojxN
} vuY~_
5uj?#)N
void CAboutDlg::DoDataExchange(CDataExchange* pDX) );&:9[b_
{ H%Q7D-
CDialog::DoDataExchange(pDX); ;u46Z
//{{AFX_DATA_MAP(CAboutDlg) l?n\i]'
//}}AFX_DATA_MAP JO6)-U$7UG
} |imM#wF
hy"\RW
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) U>}w2bZ*
//{{AFX_MSG_MAP(CAboutDlg) ,M
^<CJ
// No message handlers @O^6&\s>
//}}AFX_MSG_MAP :(*V?WI
END_MESSAGE_MAP() K:#I
jkF^-Up.
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) =R$u[~Xl2X
: CDialog(CCaptureDlg::IDD, pParent) @>Km_Ax
{ VY=jc~c]v
//{{AFX_DATA_INIT(CCaptureDlg) ^ Q ?
m_bControl = FALSE; CU2*z(]&
m_bAlt = FALSE; _H7x9
y=
m_bShift = FALSE; #( 146
m_Path = _T("c:\\"); '$]97b7G
m_Number = _T("0 picture captured."); >$/>#e~
nCount=0; EDl!w:
bRegistered=FALSE; l L@XM2"
bTray=FALSE; y(yHt=r
//}}AFX_DATA_INIT HJ[c M6$2
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 O:{~urV
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); #yF&X(%
} 1JG'%8}#8
L2i_X@/
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) Pw`8Wj
{ nV/G8SeI
CDialog::DoDataExchange(pDX); nB SYsp{
//{{AFX_DATA_MAP(CCaptureDlg) q\4Xs$APq
DDX_Control(pDX, IDC_KEY, m_Key); ">,|V-H
DDX_Check(pDX, IDC_CONTROL, m_bControl); DgQpHF
DDX_Check(pDX, IDC_ALT, m_bAlt); +.b,AqJ/
DDX_Check(pDX, IDC_SHIFT, m_bShift); .2Elr(&*h
DDX_Text(pDX, IDC_PATH, m_Path); yEoF4bt
DDX_Text(pDX, IDC_NUMBER, m_Number); Ww+IWW@
//}}AFX_DATA_MAP Ad9}9!<
} x,pjpx
l'E*=Rn
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) paE[rS\
//{{AFX_MSG_MAP(CCaptureDlg) 3J|F?M"N7
ON_WM_SYSCOMMAND() nRZ]z( b
ON_WM_PAINT() 8COGsWK
ON_WM_QUERYDRAGICON() ,~@X{7U
ON_BN_CLICKED(ID_ABOUT, OnAbout) RmeD$>7
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) SBk4_J/_
ON_BN_CLICKED(ID_CHANGE, OnChange) u$Jz~:=,
//}}AFX_MSG_MAP .|>3k'<l
END_MESSAGE_MAP() ep)n_!$OH"
`V)8
QRN(
BOOL CCaptureDlg::OnInitDialog() +`3)o PV)
{ ' ;FnIZ
CDialog::OnInitDialog(); |tMWCA
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); E`usknf>l
ASSERT(IDM_ABOUTBOX < 0xF000); a;qryUyG
CMenu* pSysMenu = GetSystemMenu(FALSE); =M[bnq*\
if (pSysMenu != NULL)
PQSP&
{ qUW!
G&R
CString strAboutMenu; b;W3j
strAboutMenu.LoadString(IDS_ABOUTBOX); &4x}ppX
if (!strAboutMenu.IsEmpty()) 0#s"e}@v
{ )|R)Q6UJ
pSysMenu->AppendMenu(MF_SEPARATOR); t[;LD_
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); 5o'FS{6U
} U!?_W=?
} dI@(<R
SetIcon(m_hIcon, TRUE); // Set big icon {14fA)`%
SetIcon(m_hIcon, FALSE); // Set small icon qJa H,
m_Key.SetCurSel(0); {
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RegisterHotkey(); r|fL&dtr
CMenu* pMenu=GetSystemMenu(FALSE); Zd}9O jz5
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); m_?~OL S
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); D4lG[qb
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); .* ?wF
return TRUE; // return TRUE unless you set the focus to a control oAJM]%g{
} [")o.(
uLL]A>vR
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) +yH7v5W
{ aFb==73aLw
if ((nID & 0xFFF0) == IDM_ABOUTBOX) .B]MpmpK
{ bz2ztH9 n
CAboutDlg dlgAbout; i$:*Pb3mV
dlgAbout.DoModal(); Xq]w<$
} [P=Jw:E
else ~hnQUS`A
{ ll<Xz((o
CDialog::OnSysCommand(nID, lParam); oim9<_
} t?x<g <PJ4
} rq/yD,I,
r6MMCJ|G
void CCaptureDlg::OnPaint() ;4^Rx
{ kHghPn?8]
if (IsIconic()) 2G67NC?+
{ RXpw!
CPaintDC dc(this); // device context for painting rb2S7k0{
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); Jr
,;>
// Center icon in client rectangle `iAF3:
int cxIcon = GetSystemMetrics(SM_CXICON); 0d"[l@UU0
int cyIcon = GetSystemMetrics(SM_CYICON); &0OG*}gi
CRect rect; a LroD$#
GetClientRect(&rect); mPtZO*Fc
int x = (rect.Width() - cxIcon + 1) / 2; EyD=q! ZVZ
int y = (rect.Height() - cyIcon + 1) / 2; q77;ZPfs8
// Draw the icon jk; clwyz/
dc.DrawIcon(x, y, m_hIcon); +,TRfP
Fb
} @uqd.Q
else ?wiCQ6*$
{ |+FubYf?$
CDialog::OnPaint(); ~q@|l3?$
} 3LJ+v5T~
} MSQEO4ge
g:'xae/]S
HCURSOR CCaptureDlg::OnQueryDragIcon() 3nIU1e
{ +eWQa`g
return (HCURSOR) m_hIcon; J{p1|+h%
} 6y%qVx#!
c)TPM/>(p
void CCaptureDlg::OnCancel() #zv3b[@
{ "/*\1v9
if(bTray) N
,'GN[s
DeleteIcon(); B4c]}r+
CDialog::OnCancel(); |"X*@s\'
} xaq-.IQAM$
rxgbV.tx
void CCaptureDlg::OnAbout() =r?hgGWe
{ |C;=-|
CAboutDlg dlg; Z58X5"
dlg.DoModal(); F'={q{2wH
} V%7WUq
knu,"<
void CCaptureDlg::OnBrowse() ?yrX)3hyH
{ vsCCB}7\
CString str; qOIyub
BROWSEINFO bi; 1y4|{7bb
char name[MAX_PATH]; }WC[$Y_@
ZeroMemory(&bi,sizeof(BROWSEINFO)); &=@IzmA
bi.hwndOwner=GetSafeHwnd(); \+oQd=K@
bi.pszDisplayName=name; $B2J
T9
bi.lpszTitle="Select folder"; sQUM~HD\a
bi.ulFlags=BIF_RETURNONLYFSDIRS; ="1Ind@w!
LPITEMIDLIST idl=SHBrowseForFolder(&bi); GfxZ'VIn
if(idl==NULL) fa
jGZyd0:
return; :KSV4>X[%a
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); .;y.]Z/;
str.ReleaseBuffer(); Z,
zWuE3
m_Path=str; aD<A.Lhy
if(str.GetAt(str.GetLength()-1)!='\\') QUwd [
m_Path+="\\"; j78i#}e
UpdateData(FALSE); %~O,zs.2p
} er("wtM
.KB^3pOpx
void CCaptureDlg::SaveBmp() &n}]w+w
{ X[-xowE-
CDC dc; `&r