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:
$(_i>&d<
v$,9l+p/ 一、实现方法
!{ )H M)|}Vn;! 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:
b,{?+8 -M/ny-;`} #pragma data_seg("shareddata")
cdEZ
Y HHOOK hHook =NULL; //钩子句柄
q@^=im UINT nHookCount =0; //挂接的程序数目
e|{6^g<ru static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
/5wvXk|@ static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
1;H( static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
K}a[ ~ static int KeyCount =0;
xkqt(ng( static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
Z7%>O:@z #pragma data_seg()
`aSz"4Wd Ag?@fuk$J 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
y~W6DL} -4V1s;QUZ DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
_A%z^&k(i /Wzic+v<> BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
SM@1<OCc cKey,UCHAR cMask)
O(!wDnhc {
Os[^ch BOOL bAdded=FALSE;
;=_KLG < for(int index=0;index<MAX_KEY;index++){
IJ=~hBI if(hCallWnd[index]==0){
JEBx|U$'Y hCallWnd[index]=hWnd;
VT-&"Jn HotKey[index]=cKey;
KDCq::P< HotKeyMask[index]=cMask;
ybB/sShGM bAdded=TRUE;
8"p>_K= KeyCount++;
NShA-G N5 break;
%,)[%>#{ }
T>L6 X:d }
`U?;9!|;6 return bAdded;
`cf&4Hn }
|\,e9U> //删除热键
}rOO[,?Y BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
[kn`~hI {
oOSw>23x BOOL bRemoved=FALSE;
-6 DfM, for(int index=0;index<MAX_KEY;index++){
)vo PH)! if(hCallWnd[index]==hWnd){
.YLg^JfZ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
Jzfzy0$ hCallWnd[index]=NULL;
&)`A4bf% HotKey[index]=0;
3Vt-]DGX HotKeyMask[index]=0;
PUucYc bRemoved=TRUE;
0y6nMI KeyCount--;
7gPkg63 break;
J9>uLz }
N/^r9Nu }
<5q:mG88 }
("IRv>} 0 return bRemoved;
"iOT14J!7 }
b vUYLWzS ?p6+?\H bJGT^N@ DLL中的钩子函数如下:
x'n J_0 2uU~$7~N LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
8th G- {
szWh#O5= BOOL bProcessed=FALSE;
#d__ if(HC_ACTION==nCode)
+tl THK {
m"jqHGFV if((lParam&0xc0000000)==0xc0000000){// 有键松开
I~#'76L[ switch(wParam)
~6{;3"^< {
: h-N case VK_MENU:
:)%Vahu MaskBits&=~ALTBIT;
1Te:&d break;
Xgop1 case VK_CONTROL:
Xc`'i@FX MaskBits&=~CTRLBIT;
X}g!Lp break;
a i}8+L8- case VK_SHIFT:
0* ,r MaskBits&=~SHIFTBIT;
z<s]Z break;
pbju;h)O!| default: //judge the key and send message
J/ <[irC break;
E!jM&\Z j }
?][Mv`ST for(int index=0;index<MAX_KEY;index++){
=>/aM7] if(hCallWnd[index]==NULL)
v#=- continue;
[4sbOl5yZ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
R.+QK6B& {
lvk(q\-f SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
+loD{
bProcessed=TRUE;
IO|">a6 }
4,TS1H }
KxK$Y.y] }
C:$ l H else if((lParam&0xc000ffff)==1){ //有键按下
[u/g =^+u switch(wParam)
64`V+Hd {
|=,V,*" case VK_MENU:
v0\2%PC MaskBits|=ALTBIT;
>qCUs3}C{* break;
(CO8t~J= case VK_CONTROL:
>/}v8k 1v MaskBits|=CTRLBIT;
"-(yZigQ break;
ADlPdkmym case VK_SHIFT:
n16,u$| MaskBits|=SHIFTBIT;
zj"J~s;? break;
[C/h{WPC- default: //judge the key and send message
!</5 )B`5: break;
"4}{Z)&R2 }
zziuj s: for(int index=0;index<MAX_KEY;index++){
R:Z{,R+
if(hCallWnd[index]==NULL)
Nn4<:2 continue;
|Pwb7:a3 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
[2.pZB {
4k<4=E SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
xHe<TwkI bProcessed=TRUE;
uRwIxT2 }
{i`BDOaL }
g:O~1jq }
V+cHL if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
DX4uTD for(int index=0;index<MAX_KEY;index++){
zeNvg/LI^ if(hCallWnd[index]==NULL)
)^L+iht continue;
q"`1cFD if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
Y7]N.G3,] SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
|jF)~k6 //lParam的意义可看MSDN中WM_KEYDOWN部分
ZKPnvL70 }
+'JM:};1X8 }
ki=-0G*] }
Tld%NE return CallNextHookEx( hHook, nCode, wParam, lParam );
}4 5| }
lLyMm8E%pZ vgo-[^FiP$ 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:
1k3wBc5< * t{A=Wk BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
&*/8Ojv)9 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
7AHEzJh" [:TOU^ 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:
Bp>%'L L]9uY LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
9<}d98 {
C3hnX2"; if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
,]42v? {
91}QuYv/_ //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
gO1`zP!9Z SaveBmp();
3zGxe- return FALSE;
ID E3>D }
F+v? 2|03 …… //其它处理及默认处理
d]$z&E }
|:L<Ko _:?)2 NV ]aXCi"fMs 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
8'@pX< W2qW`Ujo{ 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
-U'6fx) + L&][730 二、编程步骤
z?Hvh _<=U.T` 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
b~y1'|}g B/c_pRl; 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
`GUj.+u uhbo/7d'7 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
Fpzps!(;= "ALR)s,1, 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
Z,!
w.TYo g\OPidY 5、 添加代码,编译运行程序。
AhiZ0W" M)!8`] 三、程序代码
J`Q#p%W JyvXNV, ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
l;b5 v]~ #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
,3!l'|0jJ #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
#]q<fhJhr$ #if _MSC_VER > 1000
^mm:u<Yt #pragma once
oJvF)d@gU #endif // _MSC_VER > 1000
=Bu d! #ifndef __AFXWIN_H__
-A[iTI" #error include 'stdafx.h' before including this file for PCH
#x"4tI #endif
r>eOq[z #include "resource.h" // main symbols
(S&X??jfB5 class CHookApp : public CWinApp
kQRNVdiz {
zQV$!%qR public:
?tQUZO CHookApp();
"AS;\-Jk // Overrides
GX4# IRq // ClassWizard generated virtual function overrides
g0 \c //{{AFX_VIRTUAL(CHookApp)
IwiR2K public:
B!jT@b{ virtual BOOL InitInstance();
.zAB)rNc
| virtual int ExitInstance();
EXK~Zf|&Z //}}AFX_VIRTUAL
L ![b f5T //{{AFX_MSG(CHookApp)
X48Q{E+ // NOTE - the ClassWizard will add and remove member functions here.
A?06fo, // DO NOT EDIT what you see in these blocks of generated code !
l[fU0;A //}}AFX_MSG
9(dbou DECLARE_MESSAGE_MAP()
.-k\Q}D };
o;7!$v>uK LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
LZqx6~]O BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
GE\@mu *pO BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
2v0lWO~c7z BOOL InitHotkey();
\Se>u4~L BOOL UnInit();
d/k&f5 #endif
7N+No.vR. uZ&,tH/ //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
Ia*eb%HG #include "stdafx.h"
6!
\a8q'z #include "hook.h"
g|a2z_R #include <windowsx.h>
<*<7p{x #ifdef _DEBUG
t
\kI( G #define new DEBUG_NEW
w4<RV:Vmt #undef THIS_FILE
XsQ?&xK=u static char THIS_FILE[] = __FILE__;
QHUoAa`6v #endif
vZ\~+qV,A #define MAX_KEY 100
jFZJ #'CNS #define CTRLBIT 0x04
3l0x~ #define ALTBIT 0x02
-5l74f!i #define SHIFTBIT 0x01
*6cP-Vzd #pragma data_seg("shareddata")
CP)x; HHOOK hHook =NULL;
cxFfAk\,en UINT nHookCount =0;
{a- p/\U static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
S^HuQe!# static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
I
$!Y static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
4E}]> static int KeyCount =0;
w^sM,c5d static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
a.L ?J #pragma data_seg()
+O`0Mc$%' HINSTANCE hins;
CaX&T2( void VerifyWindow();
=P\H}?PF BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
0%7c?3# //{{AFX_MSG_MAP(CHookApp)
dW
Y0 // NOTE - the ClassWizard will add and remove mapping macros here.
7rw}q~CE5 // DO NOT EDIT what you see in these blocks of generated code!
IKb 7#Ut //}}AFX_MSG_MAP
lwIU|T<4 END_MESSAGE_MAP()
6 :K~w<mMJ I9h?Z&n5 CHookApp::CHookApp()
3rhH0{ {
/[`bPKr // TODO: add construction code here,
i|0H {q // Place all significant initialization in InitInstance
2u4aCfIx }
*`YR-+0 Y-hGHnh]' CHookApp theApp;
a02@CsH LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
ZC'(^liAp {
BaIH7JLZ8 BOOL bProcessed=FALSE;
sNZ{OD+ if(HC_ACTION==nCode)
JeU|e$I4> {
WUkx v* if((lParam&0xc0000000)==0xc0000000){// Key up
5K|1Y#X switch(wParam)
Q7zg i {
ABvB1[s# case VK_MENU:
|Tuk9d4] MaskBits&=~ALTBIT;
a938l^@;s8 break;
rIR~YMv! case VK_CONTROL:
R@-rc|FunJ MaskBits&=~CTRLBIT;
glbU\K> > break;
_[zO?Div[ case VK_SHIFT:
@ {\q1J> MaskBits&=~SHIFTBIT;
1Rc'2Y break;
xw(KSPN default: //judge the key and send message
zFmoo4P/ break;
RNE})B }
kaQn'5 for(int index=0;index<MAX_KEY;index++){
m!L&_Z|j if(hCallWnd[index]==NULL)
%?1k}(qUeY continue;
02q]^3 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
fFudoIC {
73OFFKbsk SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
8Ih+^Y
a bProcessed=TRUE;
3yn>9qt }
N1`/~Gi }
H]K(`)y}4 }
Q"n|<!DN else if((lParam&0xc000ffff)==1){ //Key down
(E )@@p7,: switch(wParam)
@JVax -N {
ZNNgi@6> case VK_MENU:
N
'2Nv MaskBits|=ALTBIT;
pwU
l&hwte break;
fx2r\ usX[ case VK_CONTROL:
QL%&b\K MaskBits|=CTRLBIT;
&$ZJfHD@ break;
,E2Tw-% case VK_SHIFT:
ORHs1/L`j MaskBits|=SHIFTBIT;
yPL1(i; break;
DS0c0lsx default: //judge the key and send message
JJ[.K*dO break;
Z;`ts/?SY] }
eD5.*O for(int index=0;index<MAX_KEY;index++)
{0
d/; {
cl:h'aG if(hCallWnd[index]==NULL)
.I_Mmaq;i continue;
*P]FX-D3 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
('QfB<4H1 {
`2Rd=M]? SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
8`l bKV bProcessed=TRUE;
H5j6$y|I|N }
'F.Da#st!} }
_0p8FhNt }
' ^L|}e if(!bProcessed){
M|nTO for(int index=0;index<MAX_KEY;index++){
w'E&w)Z] if(hCallWnd[index]==NULL)
P0,@#M& continue;
L q<# if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
Ib3n%AG SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
1S
.~Vh0Q, }
1\K%^<QY }
] }XsP }
y5gTd_- return CallNextHookEx( hHook, nCode, wParam, lParam );
^ur?da9z' }
<WhdQKFf- .BP@1K BOOL InitHotkey()
.&fG_(6| {
OOJg%y*H if(hHook!=NULL){
BnJpC<xm nHookCount++;
r/o1a't; return TRUE;
uL| Wuq }
o6L\39v_ else
&-M>@BMy hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
Ud@D%?A7 if(hHook!=NULL)
\>,[5|GU nHookCount++;
s?r:McF` return (hHook!=NULL);
H8@1Kt }
x-J.*X/aB BOOL UnInit()
{}>s0B {
i [,9hp if(nHookCount>1){
} o^VEJc`O nHookCount--;
_D<=Yo return TRUE;
4h% G %>j }
TKJs'%Q7F6 BOOL unhooked = UnhookWindowsHookEx(hHook);
IqEE.XhaK if(unhooked==TRUE){
zpi
Q ;P nHookCount=0;
x -CTMKX hHook=NULL;
fL-lx-~ }
S~L;oX?(! return unhooked;
v__n>*x }
3azyqpwU$ X+6`]] BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
`b.KMOn {
Q>OBK&' BOOL bAdded=FALSE;
y~eQVnH5W for(int index=0;index<MAX_KEY;index++){
Xm#rkF[, if(hCallWnd[index]==0){
'YKyY:eZ hCallWnd[index]=hWnd;
J)7m::%I HotKey[index]=cKey;
rLP:kP'b HotKeyMask[index]=cMask;
WTWONO> bAdded=TRUE;
b2rlj6d KeyCount++;
?fv5KdD break;
VS.~gHx }
8<0~j }
F_C7S return bAdded;
P D,s,A }
`X;' *E]e ,v<GSiO BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
7ns n8WN[ {
8rZJvE#c
BOOL bRemoved=FALSE;
y^OT0mZkg for(int index=0;index<MAX_KEY;index++){
QlxzWd3=q if(hCallWnd[index]==hWnd){
)67pBj if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
sn>2dRW{ hCallWnd[index]=NULL;
R9+0ZoS HotKey[index]=0;
K+WbxovXU HotKeyMask[index]=0;
w8(8n&5 bRemoved=TRUE;
jg)+]r/hS KeyCount--;
3:H[S_q break;
S=f:-?N| }
UYLCzv~W }
,oin<K }
:`jB1rI return bRemoved;
goa@e }
w?;j5[j ]{.iv_I void VerifyWindow()
@la/sd4` {
8rV"? m`S for(int i=0;i<MAX_KEY;i++){
zeqwmV= if(hCallWnd
!=NULL){ v,}Mn7:
if(!IsWindow(hCallWnd)){ JCe%;U
hCallWnd=NULL; ^$>Q6.x?*)
HotKey=0; Chso]N.1
HotKeyMask=0; `eo$o!
KeyCount--; >_3P6-L>
} FGRdA^`
} H^TU?vz}
<
} +Oxw?`I$
} 0gevn
-!bfxbP
BOOL CHookApp::InitInstance() 4`X]$.
{ b7uxCH]Z
AFX_MANAGE_STATE(AfxGetStaticModuleState()); Cf~vT"
hins=AfxGetInstanceHandle(); LdH23\
InitHotkey(); U))2?#
return CWinApp::InitInstance(); #B$r|rqamq
} s!g06F
59R%g .2Y
int CHookApp::ExitInstance() ;:WM^S
{ uge~*S
VerifyWindow(); r*F^8_YMK
UnInit(); +sY8<y@%
return CWinApp::ExitInstance(); &mPR[{
} Vb57B.I
5$PDA*]9
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file 5+Ld1nom
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) 7QXp\<7
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ >2^|r8l5
#if _MSC_VER > 1000 <V
b
SEi
#pragma once S%Bm4jY
#endif // _MSC_VER > 1000 .Ce0yAl~
a#pM9n~a
class CCaptureDlg : public CDialog -J&
b~t@
{ W Te1E, M
// Construction lj US-6
public: \D5_g8m:
BOOL bTray; F?c:
).g
BOOL bRegistered; xoB "hNIX
BOOL RegisterHotkey(); w3>.d(Q
UCHAR cKey; [G<SAWFg7
UCHAR cMask; @{ CP18~:
void DeleteIcon(); UCBx?9O/0
void AddIcon(); $/)0iL{0
UINT nCount; <)]j;Tl
void SaveBmp(); o4qB0h
CCaptureDlg(CWnd* pParent = NULL); // standard constructor Qd"R@+i
// Dialog Data Q2LAXTF]y
//{{AFX_DATA(CCaptureDlg) K&IHt?vh!
enum { IDD = IDD_CAPTURE_DIALOG }; Y$4dqn
CComboBox m_Key; X[E!q$ag
BOOL m_bControl; m\"X%Y#
BOOL m_bAlt; na`8ulN_
BOOL m_bShift; Aq*,cOF+
CString m_Path; .a_xQ]eQ
CString m_Number; 4yDWVd;
//}}AFX_DATA y**>l{!!
// ClassWizard generated virtual function overrides +eVm+4WK
//{{AFX_VIRTUAL(CCaptureDlg) ":vF[6K6
public: 3bK=Q3N
virtual BOOL PreTranslateMessage(MSG* pMsg); EJm*L6>@R&
protected: %7SGQE#W_~
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support &eIwlynm
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); f1wwx|b%.
//}}AFX_VIRTUAL O|e/(s?$
// Implementation
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protected: bBp('oEJu
HICON m_hIcon; 3f)!RKS9q
// Generated message map functions , 9"A"p*R
//{{AFX_MSG(CCaptureDlg) sOBuJx${m
virtual BOOL OnInitDialog(); q +*>T=k
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); KrqO7
afx_msg void OnPaint(); #+SdX[N
afx_msg HCURSOR OnQueryDragIcon(); 5X}OUn8
virtual void OnCancel(); &m~
afx_msg void OnAbout(); d$<1Ma}
afx_msg void OnBrowse(); IWNIk9T,u
afx_msg void OnChange(); V5up/ 6b,1
//}}AFX_MSG 3BK_$Fy
DECLARE_MESSAGE_MAP() g7`uWAxZa
}; lfe^_`ij(+
#endif e)Pm{:E
fK1^fzV
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file J?[}h&otQ
#include "stdafx.h" wrEYbb
#include "Capture.h" 2`cVi"U
#include "CaptureDlg.h" g6!#n
#include <windowsx.h> rT!9{uK
#pragma comment(lib,"hook.lib") *OR(8;
#ifdef _DEBUG e=4k|8 G
#define new DEBUG_NEW MtXd}/
#undef THIS_FILE Jh`6@d
static char THIS_FILE[] = __FILE__; .{Df"e>
#endif >vk?wY^f
#define IDM_SHELL WM_USER+1 9 Xx4,#?
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); S+M:{<AR
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); n||!/u)*
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; 9
?(P?H
class CAboutDlg : public CDialog Sp~gY]:
{ 2\L}Ka|v
public: hZDv5]V:0
CAboutDlg(); O/{W:hJjd
// Dialog Data ~\~XD+jy"
//{{AFX_DATA(CAboutDlg) *h Bo,
enum { IDD = IDD_ABOUTBOX }; d
A' h7D
//}}AFX_DATA L}.V`v{zc
// ClassWizard generated virtual function overrides :taRCh5
//{{AFX_VIRTUAL(CAboutDlg) [.*o<
KP
protected: P(XNtQ= K
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support qkh.?~
//}}AFX_VIRTUAL Rss=ihlM
// Implementation !#Hca
protected: oQ_n:<3X
//{{AFX_MSG(CAboutDlg) iT"H%{+~
//}}AFX_MSG @V5'+^O
DECLARE_MESSAGE_MAP() G[[NDK
}; ^bckl
tSo
]J6+nA6)
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) bmu<V1[W
{ WA 79(B
//{{AFX_DATA_INIT(CAboutDlg) G)wIxm$?0
//}}AFX_DATA_INIT "K$
y(}C
} \`: LPe
ICI8xP}a?
void CAboutDlg::DoDataExchange(CDataExchange* pDX) *S>,5R0k
{ fP
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CDialog::DoDataExchange(pDX); ?.&?4*u
//{{AFX_DATA_MAP(CAboutDlg) tmf=1M
//}}AFX_DATA_MAP wJF Fg :
} x1ID6kI[{*
ky5 gU[
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) |
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//{{AFX_MSG_MAP(CAboutDlg) 2\1\Jn#q
// No message handlers j])nkm7_
//}}AFX_MSG_MAP iWNTI
END_MESSAGE_MAP() )QiHe}
R
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CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) qnZ`]?
: CDialog(CCaptureDlg::IDD, pParent) ;o0o6pF
{ c&T14!lfn
//{{AFX_DATA_INIT(CCaptureDlg) |~3$L\X
m_bControl = FALSE; G$HLta
m_bAlt = FALSE; 59I}
m_bShift = FALSE; Bt^];DjH
m_Path = _T("c:\\"); *>XY' -;2e
m_Number = _T("0 picture captured."); #O.-/&Z
nCount=0; b1{XGK'
bRegistered=FALSE; j']Q-s(s
bTray=FALSE; pd{;`EW|
//}}AFX_DATA_INIT %C8fv|@:f
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 k^PqB+P!
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); (B zf~#]~
}
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7F{=bL
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) @tLoU%
{ 4)3!n*I
CDialog::DoDataExchange(pDX); y[!4M+jj
//{{AFX_DATA_MAP(CCaptureDlg) 4';]fmf@[i
DDX_Control(pDX, IDC_KEY, m_Key); >MIp r
DDX_Check(pDX, IDC_CONTROL, m_bControl); R.)U<`| |
DDX_Check(pDX, IDC_ALT, m_bAlt); !jDqRXi(
DDX_Check(pDX, IDC_SHIFT, m_bShift); :`ysq
DDX_Text(pDX, IDC_PATH, m_Path); w5(GRAH
DDX_Text(pDX, IDC_NUMBER, m_Number); Z0 e+CEzq
//}}AFX_DATA_MAP ?JD\pYg[/
} !u#o"e<qh
It\ob7n
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) {M?!nS6t
//{{AFX_MSG_MAP(CCaptureDlg) zA/W+j$:
ON_WM_SYSCOMMAND() pPG@_9qf
ON_WM_PAINT() m&Mvb[
ON_WM_QUERYDRAGICON() =c8U:\0
ON_BN_CLICKED(ID_ABOUT, OnAbout) r_Rjjo
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) uGQCW\!"4
ON_BN_CLICKED(ID_CHANGE, OnChange) ]&ptld;
//}}AFX_MSG_MAP 6]}Xi:I
END_MESSAGE_MAP() g/q$;cB
EN%Xs578
BOOL CCaptureDlg::OnInitDialog() 32IN;X|
{ 8&=+Mw
CDialog::OnInitDialog(); 5W!E.fz*T
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); 6zLz<p?
ASSERT(IDM_ABOUTBOX < 0xF000); ;6 1m
CMenu* pSysMenu = GetSystemMenu(FALSE); lC1X9Op
if (pSysMenu != NULL) xy|-{
{ GfQP@R"
CString strAboutMenu; /j'We-C
strAboutMenu.LoadString(IDS_ABOUTBOX); ZtEHP`Iin
if (!strAboutMenu.IsEmpty()) HC8{);
{ V_(?mC
pSysMenu->AppendMenu(MF_SEPARATOR); Iq\sf-1E
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); 9&W\BQ
} 7OOB6[.fu
} S@7A)
SetIcon(m_hIcon, TRUE); // Set big icon cQv*lvG9>
SetIcon(m_hIcon, FALSE); // Set small icon `4&\ %9
m_Key.SetCurSel(0); <!zItFMD[m
RegisterHotkey(); 5hp b=2
CMenu* pMenu=GetSystemMenu(FALSE); j>s%q.
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); qgca4VV|z
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); y( MF_'l
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); CFZ=!s)B
return TRUE; // return TRUE unless you set the focus to a control zF]hfP0Q
} zoOm[X=?3
?XGZp?6
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) %p2 C5z?
{ aG\m3r
if ((nID & 0xFFF0) == IDM_ABOUTBOX) 0{PK]qp7
{ 'EREut,>'
CAboutDlg dlgAbout; h3p 3~xq
dlgAbout.DoModal(); kQIWDN
} fINM$ 6
else cx2s|@u0
{ ORx,n7-
CDialog::OnSysCommand(nID, lParam); igz:ek`
} Sjr(e}*
} `bT{E.(T
HXdPKS4q
void CCaptureDlg::OnPaint() O|j5ulO}&"
{ 8XJ%Yuu
if (IsIconic()) @;<w"j`r
{ ]jHB'Y
CPaintDC dc(this); // device context for painting 317Buk
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); ]V@!kg(p8
// Center icon in client rectangle H[,.nH_>+
int cxIcon = GetSystemMetrics(SM_CXICON); >M:5yk@
int cyIcon = GetSystemMetrics(SM_CYICON); 4g1u9Sc0
CRect rect; K)Db3JIIk
GetClientRect(&rect); CaBTqo
int x = (rect.Width() - cxIcon + 1) / 2; &9s6p6eb
int y = (rect.Height() - cyIcon + 1) / 2; DO03vN
// Draw the icon ']vX
dc.DrawIcon(x, y, m_hIcon); \Y!Z3CK
} {.,OPR"\
else ydns_Z
{ #zy,x
CDialog::OnPaint(); Zc9
n0t[
} "-xC59,
} :{66WSa@Dd
o3WkbMJWM
HCURSOR CCaptureDlg::OnQueryDragIcon() Z^fF^3x
{ ~hvhT}lE
return (HCURSOR) m_hIcon; :za!!^
} {J0^S
!)9zH
void CCaptureDlg::OnCancel() L8j,?u#
{ C}1(@$
if(bTray) 0KDDAkR5R
DeleteIcon(); ,Fr{i1Ky
CDialog::OnCancel(); -~(0:@o ;
} u8<=FV3
x:2[E-
void CCaptureDlg::OnAbout() iqoPD4A
{ Nl@Hx
CAboutDlg dlg; huTJ
a2
dlg.DoModal(); e8lF$[i
} Q49|,ou[H
[#Yyw8V#<
void CCaptureDlg::OnBrowse() vl*RRoJ
{ +bO{UC[
CString str; 8Peqm?{5Y5
BROWSEINFO bi; bm+ Mr
char name[MAX_PATH]; DSjo%Brd-
ZeroMemory(&bi,sizeof(BROWSEINFO)); q$t& *O_
bi.hwndOwner=GetSafeHwnd(); 0Hz3nd?v
bi.pszDisplayName=name; GS{9MGl
bi.lpszTitle="Select folder"; Ti)n(G9$
bi.ulFlags=BIF_RETURNONLYFSDIRS; 0"QE,pLe4
LPITEMIDLIST idl=SHBrowseForFolder(&bi); Zka;}UL&Q
if(idl==NULL) z H \*v'
return; uyA9`~p=#
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); ?B}>[
str.ReleaseBuffer(); u51/B:+
m_Path=str; h NoN=J
if(str.GetAt(str.GetLength()-1)!='\\') ^Ue.9#9T&g
m_Path+="\\"; Ci*5E$+\
UpdateData(FALSE); ~*[}O)7#
} NPc%}V&C(u
#YNb&K
n
void CCaptureDlg::SaveBmp() -Qgfo|po
{ |(V%(_s
CDC dc; Ml3F\ fAW
dc.CreateDC("DISPLAY",NULL,NULL,NULL); ^4fkZh
CBitmap bm; ;,A\bmC
int Width=GetSystemMetrics(SM_CXSCREEN); B#DV<%GPl
int Height=GetSystemMetrics(SM_CYSCREEN); l1:j/[B=
bm.CreateCompatibleBitmap(&dc,Width,Height); /.?\P#9)
CDC tdc; C}>)IH
tdc.CreateCompatibleDC(&dc); YG8oy!Zl
CBitmap*pOld=tdc.SelectObject(&bm); lR(&Wc\j
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); ?SAi tQ3
tdc.SelectObject(pOld); fBF}-{VX(
BITMAP btm; vK{K#{
bm.GetBitmap(&btm); "_l[4o[D
DWORD size=btm.bmWidthBytes*btm.bmHeight; 0PfFli`2;
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); @<PL
BITMAPINFOHEADER bih; 4Oy
c D
bih.biBitCount=btm.bmBitsPixel; _YJw F1e+M
bih.biClrImportant=0; NWpRzh8$u
bih.biClrUsed=0; j>T''Tf
bih.biCompression=0; !^7:Rr_
bih.biHeight=btm.bmHeight; [V f|4xcD
bih.biPlanes=1; 4J_%quxO
bih.biSize=sizeof(BITMAPINFOHEADER); Rk=B;
bih.biSizeImage=size; q38; w~H
bih.biWidth=btm.bmWidth; )6j:Mbz
bih.biXPelsPerMeter=0; <