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:
?|,-Bft3 asd3J 一、实现方法
y $6~&X /_.1f|{B 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
1b4/ &2\^S+4 #pragma data_seg("shareddata")
7ts`uI<E@7 HHOOK hHook =NULL; //钩子句柄
X8Y)5,`s UINT nHookCount =0; //挂接的程序数目
(>a8h~Na static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
^DH*\ee static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
vnOl-`Z ~ static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
M'-Z" static int KeyCount =0;
I5mtr static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
D,sb{N #pragma data_seg()
c|KN@)A ll8Zo+-[ 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
(dgBI}Za <yxy ;o DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
3tu:Vc.:M 49d02AU% BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
\~~y1.,U. cKey,UCHAR cMask)
S&Szc0-|k {
5vo5t0^o BOOL bAdded=FALSE;
%&Q9WMo for(int index=0;index<MAX_KEY;index++){
S2,tv if(hCallWnd[index]==0){
#[$zbZ(I>: hCallWnd[index]=hWnd;
Iq["(!7E5 HotKey[index]=cKey;
}ofx?s} HotKeyMask[index]=cMask;
aRE%(-5 bAdded=TRUE;
;V)jC KeyCount++;
zPn2 break;
q\]"}M8 }
2vh@KnNU }
UZJ<|[ return bAdded;
(YC{BM} }
![H{ndH!Q //删除热键
c[<>e#s+; BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Wkj0z]]? {
[8v>jQ) BOOL bRemoved=FALSE;
.mwB'Ll for(int index=0;index<MAX_KEY;index++){
T;`2t; if(hCallWnd[index]==hWnd){
vzH"O= if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
Iy8fN"I9D hCallWnd[index]=NULL;
|zCT~# HotKey[index]=0;
Z;M th# HotKeyMask[index]=0;
"
.<>(bE bRemoved=TRUE;
A-*y[/ KeyCount--;
} 8&? break;
##r9/`A }
unD.t }
Ygs:Ox"[-G }
3$f+3/l return bRemoved;
zz**HwRt }
]TX"BH"2 V7(-<})8 @t{`KB+
^ DLL中的钩子函数如下:
r<9G}9 sEzl4I LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
YU ,fx<c {
KJP}0|[ BOOL bProcessed=FALSE;
(\M#Ay t) if(HC_ACTION==nCode)
GJ Takhj3 {
[M/0 Qx[, if((lParam&0xc0000000)==0xc0000000){// 有键松开
,`,1s9\&t switch(wParam)
j{&$_ {
,Z$!:U case VK_MENU:
p>9|JMk MaskBits&=~ALTBIT;
W87kE?, break;
[MXyOE case VK_CONTROL:
,,=VF(@G MaskBits&=~CTRLBIT;
Ou7nk:I@ break;
des.TSZ case VK_SHIFT:
qe2@bG%2+F MaskBits&=~SHIFTBIT;
'PWX19 break;
2|\WaH9P default: //judge the key and send message
S8k<}5 break;
KD^n7+w% }
*4OB
88$ for(int index=0;index<MAX_KEY;index++){
UZRN4tru6 if(hCallWnd[index]==NULL)
vww>] Z} continue;
9}A\BhtiM if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Bg. {
?M BOd9 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
Z>PS>6 bProcessed=TRUE;
Fk`|?pQm }
p)Fi{%bc }
^y.|KA3[ }
vI \8@97 else if((lParam&0xc000ffff)==1){ //有键按下
!uW;Ea? switch(wParam)
rH$M6S {
o3cE.YUF case VK_MENU:
5$ &',v( MaskBits|=ALTBIT;
YVLK X}$)( break;
;Iax \rQ case VK_CONTROL:
4L/nEZ!Nsu MaskBits|=CTRLBIT;
'OI(MuSn break;
Jp"[` m case VK_SHIFT:
9c{T|+] MaskBits|=SHIFTBIT;
F/ui(4 break;
ijACfl{!:t default: //judge the key and send message
dR!x)oO= break;
)(+q~KA} }
U8OVn(qV for(int index=0;index<MAX_KEY;index++){
\ 0/m$V. if(hCallWnd[index]==NULL)
p0Pmmp7r
continue;
G *
=> if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
VQ;'SY:` {
}CM#jN?( SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
%$'Z"njO& bProcessed=TRUE;
}poLHS/ }
*nB-]
w/ }
m:Fdgu9 }
0-:dzf if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
3,0b<vfSv for(int index=0;index<MAX_KEY;index++){
HdRwDW@7= if(hCallWnd[index]==NULL)
Ys]cJ] continue;
nT9Hw~f<j if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
PQ 2rNY6 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
{~`{bnx^]7 //lParam的意义可看MSDN中WM_KEYDOWN部分
?OFfU 4 }
M>ntldV#g% }
'HJ<"< }
,z~"Mst return CallNextHookEx( hHook, nCode, wParam, lParam );
r0s(MyI }
qNWSDZQ ?Xj@Sx 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
umN4|X ^t?vv;@} BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
LKgo(&mY BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
{7Hc00FM C8%MKNPd 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
%awr3h>$ S59^$ LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
lE$(*1H {
S^iT&;, if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
O-ppR7edh {
R-tZC9
@ //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
r-No\u_ SaveBmp();
UAGh2?q2 return FALSE;
gOr%N!5 }
U+[h^M$U …… //其它处理及默认处理
qfqL"G }
]U&<y8Q_6 q+
`QiPj 5p ,HkV 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。
Y*sw;2Z;a "A0y&^4B@ 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。
|>b;M,`OO y"k%Wa`* 二、编程步骤
/4;Sxx- vXg^K}a# 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";
<j1r6.E) qL5~Wr m-W 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
+&G]\WX< T(Ji%S> 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;
Js^(mRv= [x'D+! 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;
>J#/IjCW N~P1^x~ 5、 添加代码,编译运行程序。
mV+9*or v6ei47- 三、程序代码
n. vrq- )Myx(w"S ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
'7g]@Q7 #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
lYmxd8 #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
$xis4/2 #if _MSC_VER > 1000
9CAu0N5< #pragma once
i(kx'ua? #endif // _MSC_VER > 1000
;U#=H9_ #ifndef __AFXWIN_H__
-/Zy{2 <u #error include 'stdafx.h' before including this file for PCH
-@@
O<M^ #endif
DB}v.. #include "resource.h" // main symbols
+No` 89Y class CHookApp : public CWinApp
ibLx'< {
pG22Nx public:
WWC&-Ni CHookApp();
~[=d{M!$W // Overrides
+U4';[LG1C // ClassWizard generated virtual function overrides
VQ8Fs/Zt! //{{AFX_VIRTUAL(CHookApp)
#CcEI public:
t{,e{oZx virtual BOOL InitInstance();
pu_?)U virtual int ExitInstance();
c}s#!|E0v //}}AFX_VIRTUAL
z]D/Qr //{{AFX_MSG(CHookApp)
!s:_>P`MQ // NOTE - the ClassWizard will add and remove member functions here.
B>c2 *+Bk // DO NOT EDIT what you see in these blocks of generated code !
V+r&Z<& //}}AFX_MSG
'}:(y$9.` DECLARE_MESSAGE_MAP()
TpI8mDO\W };
0|g@;Pc LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
D5:|CMQ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
0O>M/ *W BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
%<8r`BMo BOOL InitHotkey();
3!%-O:! BOOL UnInit();
E!uQ>'iq. #endif
*3s-=.U~ |oSqy //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
K_k'#j~*? #include "stdafx.h"
|kD69
}sG #include "hook.h"
5,-:31(j\ #include <windowsx.h>
H[}lzL) #ifdef _DEBUG
?zfm"o #define new DEBUG_NEW
Pz\ByD #undef THIS_FILE
iP@FXJJ static char THIS_FILE[] = __FILE__;
s3 fQGbU #endif
`TH\0/eE #define MAX_KEY 100
/qMiv7m~Q #define CTRLBIT 0x04
]z#)XW3#i #define ALTBIT 0x02
C6Cr+TScH #define SHIFTBIT 0x01
%m
[l/,2x #pragma data_seg("shareddata")
IusZY B HHOOK hHook =NULL;
CIf@G>e- UINT nHookCount =0;
Jfo'iNOu static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
l]j;0 i static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
M8$eMS1 static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
947;6a%$ static int KeyCount =0;
:X:s'I4J
D static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
u~>G8y)k9O #pragma data_seg()
<L<^uFB HINSTANCE hins;
><xmw= void VerifyWindow();
Ep:hObWG) BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
5ArgM% //{{AFX_MSG_MAP(CHookApp)
Z>3m-:-e // NOTE - the ClassWizard will add and remove mapping macros here.
*e<}hmDr // DO NOT EDIT what you see in these blocks of generated code!
'X6Z:dZY //}}AFX_MSG_MAP
4O.R=c2}7> END_MESSAGE_MAP()
HF"TS* *$`N5;7'` CHookApp::CHookApp()
G!wb|-4<$ {
1Kr$JIcd // TODO: add construction code here,
2 |JEGyDS- // Place all significant initialization in InitInstance
k+*pg4' }
_l1"X ^Aa oI'& &Bt CHookApp theApp;
.lM]>y) LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
Ul6|LTY {
'.<c[Mp BOOL bProcessed=FALSE;
byMy-v; if(HC_ACTION==nCode)
A{M7 {
"K$c 9Z8 if((lParam&0xc0000000)==0xc0000000){// Key up
d R=0K switch(wParam)
<&2<>*/.y {
m{$}u@a case VK_MENU:
<mj/P|P@ MaskBits&=~ALTBIT;
l9OpaOVfJ break;
QgQclML1| case VK_CONTROL:
;yyR_NS MaskBits&=~CTRLBIT;
sC.r$K+k5 break;
O[{/P:a case VK_SHIFT:
/xcXd+k] MaskBits&=~SHIFTBIT;
'Bxj(LaV- break;
.tppCy default: //judge the key and send message
K=E+QvSG break;
m#i4_F=^b }
AzSu_ for(int index=0;index<MAX_KEY;index++){
B~|]gd if(hCallWnd[index]==NULL)
MkjB4:" continue;
5S_fvW; if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
N~fE&@- {
(5,x5l]-N SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
5f?GSHA} bProcessed=TRUE;
|)" y }
023uAaI^3r }
= :zPT;K }
c
q[nqjC= else if((lParam&0xc000ffff)==1){ //Key down
TJZ/lJU switch(wParam)
qY'+@^<U; {
eThFRU3 F case VK_MENU:
l6 }+,v@# MaskBits|=ALTBIT;
_+nk3-yQw break;
'+Z Jf&Ox case VK_CONTROL:
Yw]$/oP` MaskBits|=CTRLBIT;
B$YoglEW: break;
D&I/Tbc case VK_SHIFT:
/5z,G r MaskBits|=SHIFTBIT;
BD;T>M break;
EJMd[hMhe default: //judge the key and send message
TwVkI<e0s? break;
B!;:,(S~ }
Mis B&Ok`k for(int index=0;index<MAX_KEY;index++)
_9H]:]1QH {
Z 4i5,f if(hCallWnd[index]==NULL)
.-![ ra continue;
l4.ql1BX@y if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
MRK=\qjD
{
(*=>YE'V{ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
lY(_e# bProcessed=TRUE;
maY.Z<lN }
0^nF: F }
M!mw6';k }
kksffzG if(!bProcessed){
6}Tftw$0z for(int index=0;index<MAX_KEY;index++){
K]Vp! G if(hCallWnd[index]==NULL)
o<txm ?+N continue;
LyNmn.nN if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
iGz*4^% SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
9}a$0H
h }
'J-a2oiM( }
B(vCi^ }
rc<Ix return CallNextHookEx( hHook, nCode, wParam, lParam );
: _:)S }
?Js4\X!uJ MUv#8{+F'/ BOOL InitHotkey()
,7:-V<'Yv {
!sEhjJV^7 if(hHook!=NULL){
4e .19H9 nHookCount++;
8#tuB8> return TRUE;
1n}#54 }
~_"V7 else
<82&F hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
SCe$v76p# if(hHook!=NULL)
8!!h6dQgI nHookCount++;
@mxaZ5Vv} return (hHook!=NULL);
_deEs5i }
6|
o S 5 BOOL UnInit()
C96*,.j~' {
4e
eh+T if(nHookCount>1){
cN?/YkW?] nHookCount--;
U{Oo@ztT return TRUE;
<-b9
)> }
Qk>U=]U BOOL unhooked = UnhookWindowsHookEx(hHook);
g[t paQ if(unhooked==TRUE){
Sw"h!\c` nHookCount=0;
$RRX- hHook=NULL;
~$C<^?"b }
f(blqO.@l return unhooked;
%xG<hNw/ }
1L'Q;?&2H, yp^k;G?_d BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
ok:L]8UN3 {
IzUpkwN BOOL bAdded=FALSE;
{47l1wV] for(int index=0;index<MAX_KEY;index++){
X=abaKl if(hCallWnd[index]==0){
Cd=$XJ-b hCallWnd[index]=hWnd;
0L8fpGJ HotKey[index]=cKey;
"+7E9m6I HotKeyMask[index]=cMask;
9_jiUZFje bAdded=TRUE;
WwZ3hd KeyCount++;
7=u
Gf$/ break;
czu9a"M>X }
JrLh=0i9 }
t$Ff$( return bAdded;
jVN06,3z }
.81Y/Gad_ ~&RrlF h BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
x*'H@!!G {
v&/H6r#E. BOOL bRemoved=FALSE;
BgUp~zdo for(int index=0;index<MAX_KEY;index++){
tN\I2wm if(hCallWnd[index]==hWnd){
oOvQAW8` if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
eIF6f&
F hCallWnd[index]=NULL;
j\bp#+ HotKey[index]=0;
5fiWo^s} HotKeyMask[index]=0;
)fIG4#%\ bRemoved=TRUE;
uQx/o^ KeyCount--;
n&P~<2^M# break;
uI?Z_ }
iEr?s-or }
%CvVu)tc }
n
YUFRV$ return bRemoved;
Lp(`m=;O }
9{Et v w wL,
-" void VerifyWindow()
`|Di?4+6% {
D QxuV1 for(int i=0;i<MAX_KEY;i++){
'/03m\7 if(hCallWnd
!=NULL){ :n{{\SSIgX
if(!IsWindow(hCallWnd)){ _z BfNz9D
hCallWnd=NULL; !a:e=b7g
HotKey=0; ElB[k<
HotKeyMask=0; XLaD#J
KeyCount--; c;X,-Q9
}
H,GjPIG
} OOXSJE1
} "h[)5V{
} eCN:
5m0lk|`
BOOL CHookApp::InitInstance() w*/@|r39
{ aAGV\o{^
AFX_MANAGE_STATE(AfxGetStaticModuleState()); .(cpYKFX
hins=AfxGetInstanceHandle(); l P=I0A-
InitHotkey(); &Lt$~}*&6
return CWinApp::InitInstance(); uyk;]EYjHZ
} 0%L:jq{5
H.;}%id
int CHookApp::ExitInstance() DMch88W
{ FA{Q6fi:2
VerifyWindow(); ZpOME@9,
UnInit(); 2>k*9kyp
return CWinApp::ExitInstance(); wS9V@
} I9+h-t
fUWrR1
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file H{5,
-x
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) 1irSI,j%z
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ [@VzpVhXz
#if _MSC_VER > 1000 JHm Pa
#pragma once q|]CA
#endif // _MSC_VER > 1000 H3R{+7
XtZd%
#2},
class CCaptureDlg : public CDialog 8[X"XThj
{ 3]JJCaf
// Construction NnHaHX
public: )b]wpEFl
BOOL bTray; [efU)O&
BOOL bRegistered;
hO.b?>3NL
BOOL RegisterHotkey(); ,T
zlW\?\
UCHAR cKey; ;DnUeE8
UCHAR cMask; >Q@y8*E\F
void DeleteIcon(); *@#Gc%mGu
void AddIcon(); nF]R"
UINT nCount; @#W4?L*D
void SaveBmp(); +l)t5Mg\
CCaptureDlg(CWnd* pParent = NULL); // standard constructor %SIll
// Dialog Data Qu'#~#L`
//{{AFX_DATA(CCaptureDlg) \VOv&s;h
enum { IDD = IDD_CAPTURE_DIALOG }; lv!j
CComboBox m_Key;
*?1\S^7R
BOOL m_bControl; S{e3aqT#N
BOOL m_bAlt; `G:1
BOOL m_bShift; '9.@r\g
CString m_Path; #Ox@[Z1I
CString m_Number; H6K8.
//}}AFX_DATA ;Krs*3
s
// ClassWizard generated virtual function overrides :PN%'~}n
//{{AFX_VIRTUAL(CCaptureDlg) FywX
public: fOSk>
gK
virtual BOOL PreTranslateMessage(MSG* pMsg); )O+Zbn
protected: af@a /
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support tF/Ni*\^rV
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); ;Qt/(/
//}}AFX_VIRTUAL nxuH22:
// Implementation Wm"#"l4
protected: P(@Q[XQ2
HICON m_hIcon; Q wG_-
// Generated message map functions 7DK}c]js
//{{AFX_MSG(CCaptureDlg) d\3 %5Y
virtual BOOL OnInitDialog(); c9jS
!uDMK
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); (:E@kpK
afx_msg void OnPaint(); -U$;\1--
afx_msg HCURSOR OnQueryDragIcon(); )XSHKPTQ1
virtual void OnCancel(); ;Q vQ fV4
afx_msg void OnAbout(); t`hes
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afx_msg void OnBrowse();
MYVVI1A
afx_msg void OnChange(); C"5P7F{
//}}AFX_MSG =?y0fLTc
DECLARE_MESSAGE_MAP() (r?hD*2r
}; X8*~Cf73u
#endif V73/q
aLW3Ub{h
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file ^.@%n1I"5y
#include "stdafx.h" pV8tn!
#include "Capture.h" Io
IhQ
#include "CaptureDlg.h" "S'Yn-
#include <windowsx.h> v]Pyz<+
#pragma comment(lib,"hook.lib") lcpiCZ
#ifdef _DEBUG |/xA5_-N
#define new DEBUG_NEW ,37<FXX,
#undef THIS_FILE Q{=r9&&
static char THIS_FILE[] = __FILE__; W58?t6!
=
#endif l*wGKg"x3
#define IDM_SHELL WM_USER+1 !9r%d8!z
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); -:r<sv$
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); 9L-jlAo<
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; 7>r[.g
class CAboutDlg : public CDialog ~AaEa,LQ
{ *v8daF
public: }JQy&V%
CAboutDlg(); A+H8\ew2,
// Dialog Data dJrUcZBr
//{{AFX_DATA(CAboutDlg) $E; Tj|W
enum { IDD = IDD_ABOUTBOX }; (4q/LuP^d
//}}AFX_DATA lZIJ[.
// ClassWizard generated virtual function overrides :F[s
//{{AFX_VIRTUAL(CAboutDlg) jp4-w(
protected: Z 369<
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support +]wM$bP
//}}AFX_VIRTUAL `wj'
// Implementation (#85<|z
protected: byt$Wqdl
//{{AFX_MSG(CAboutDlg) 3
.j/D^
//}}AFX_MSG +CSv@ />3
DECLARE_MESSAGE_MAP() ?9eiT:2
}; ~bzac2Rp
)@Y<
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CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) /G]/zlUE
{ =5^1Bl
//{{AFX_DATA_INIT(CAboutDlg) 4|Y1W}!0/
//}}AFX_DATA_INIT {!?M!/d
} }|8^+V&
8[AU`F8W
void CAboutDlg::DoDataExchange(CDataExchange* pDX) @aFk|.6
{ 8n2;47 a
CDialog::DoDataExchange(pDX); {/5aF_0D.
//{{AFX_DATA_MAP(CAboutDlg) ra^%__N}
//}}AFX_DATA_MAP #k d9}
} d5{=<j
yeIS} O
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) O+<+yQl
//{{AFX_MSG_MAP(CAboutDlg) %c]N-
// No message handlers uxKO"
//}}AFX_MSG_MAP :?ZrD,D
END_MESSAGE_MAP() ?+Vi
!eS
If&y 5C
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) )OQ<H.X
: CDialog(CCaptureDlg::IDD, pParent) }{,Wha5\n
{ ;[P>
//{{AFX_DATA_INIT(CCaptureDlg) y.8nzlkE{
m_bControl = FALSE; 74
)G.!
m_bAlt = FALSE; b-<@3N.9]
m_bShift = FALSE; /f oI.S
m_Path = _T("c:\\"); Q;q{1M >
m_Number = _T("0 picture captured."); iY,oaC~?"N
nCount=0; g$Vr9MH
bRegistered=FALSE; v}AjW%rB
bTray=FALSE; P&[&Dj
//}}AFX_DATA_INIT c8Q2H
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 XMP4YWuVc
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); ~@@$-,}X
} o F_{oV'
- 3PLP$P
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) -j rAk
{ :#n>Q1}x
CDialog::DoDataExchange(pDX); 0SIUp/.
//{{AFX_DATA_MAP(CCaptureDlg) G[_Z|Xi1
DDX_Control(pDX, IDC_KEY, m_Key); }C/+zF6q
DDX_Check(pDX, IDC_CONTROL, m_bControl); #v~dhx=R
DDX_Check(pDX, IDC_ALT, m_bAlt); >X:!Y[N
DDX_Check(pDX, IDC_SHIFT, m_bShift); -h
^MX
DDX_Text(pDX, IDC_PATH, m_Path); e$Yvy>I'tS
DDX_Text(pDX, IDC_NUMBER, m_Number); H{9P=l
//}}AFX_DATA_MAP Z1$U[Tsd
} o.zP1n|G~r
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BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) qJonzFp7
//{{AFX_MSG_MAP(CCaptureDlg) d,
?GW
ON_WM_SYSCOMMAND() fTK84v"7_
ON_WM_PAINT() 8*B+@`
ON_WM_QUERYDRAGICON() $II~tO
ON_BN_CLICKED(ID_ABOUT, OnAbout) BKE ?o^03
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) >/}p{Tj
ON_BN_CLICKED(ID_CHANGE, OnChange) 1#+|RL4o
//}}AFX_MSG_MAP B *6ncj
END_MESSAGE_MAP() (@^ySiU
H~Uy/22aQy
BOOL CCaptureDlg::OnInitDialog() BjTgZ98J
{ !SnLvW89Z
CDialog::OnInitDialog(); T9kc(i'
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); 9Nv?j=*$
ASSERT(IDM_ABOUTBOX < 0xF000); v7#|%
CMenu* pSysMenu = GetSystemMenu(FALSE); bd27])n(
if (pSysMenu != NULL) RDy&i
{ +NvpYz
CString strAboutMenu; |:2B )X
strAboutMenu.LoadString(IDS_ABOUTBOX); q*a~9.i@
if (!strAboutMenu.IsEmpty()) GGhk`z
{ *0V'rH)
pSysMenu->AppendMenu(MF_SEPARATOR); 61gyx6v
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); vLq%k+D#
} !
jDopE0L
} -rgdKA@)(
SetIcon(m_hIcon, TRUE); // Set big icon ,PJC FQMR
SetIcon(m_hIcon, FALSE); // Set small icon ouFKqRs;
m_Key.SetCurSel(0); 9~a 5R]x2
RegisterHotkey(); TVSCjI
CMenu* pMenu=GetSystemMenu(FALSE); `2x. -
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); oaILh
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); /PR4ILed
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); ?(Plb&kR
return TRUE; // return TRUE unless you set the focus to a control VUHf-bKl
} .J+F
HG'
gLZJQubz
6
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) utC^wA5U~
{ cg9}T[A
if ((nID & 0xFFF0) == IDM_ABOUTBOX) b9-3
{ @B(E&
CAboutDlg dlgAbout; CW/L(RQ
dlgAbout.DoModal(); L8NZU*"
} `cN8AcRHP
else BTG_c_?]e
{ `GCK%evLG
CDialog::OnSysCommand(nID, lParam); ocUBSK|K)
} Z
d@B6R
} ]Ge>S?u
tw\1&*:
void CCaptureDlg::OnPaint() %,ScGQE
{ `Gl[e4U
if (IsIconic()) pm:- E(3#
{ _RZ"WA^[
CPaintDC dc(this); // device context for painting a+a6P5kJ
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); #
kNp);
// Center icon in client rectangle @qx$b~%
int cxIcon = GetSystemMetrics(SM_CXICON); 87!m l
int cyIcon = GetSystemMetrics(SM_CYICON); =9^}>u
CRect rect; R1<$VR
GetClientRect(&rect); A 2A_F|f
int x = (rect.Width() - cxIcon + 1) / 2; 1cRF0MI
int y = (rect.Height() - cyIcon + 1) / 2; hH%fWB2(
// Draw the icon Q&?0 ^;r
dc.DrawIcon(x, y, m_hIcon); 8$ #z>
} RQ^
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else X{ 6a
{ ZBN,%P!P0
CDialog::OnPaint(); /_Ku:?{
} {{gt>"D,
} ({!H()
u!F\`Gfm_
HCURSOR CCaptureDlg::OnQueryDragIcon() g)|vS>^~
{ [/ertB
return (HCURSOR) m_hIcon; pQC|_T#u
} v'^}zO
wrX n|aV
void CCaptureDlg::OnCancel() @v&