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:
K&pM o.
rm+v(& 一、实现方法
9NIy# aIGn9:\ 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:
_J"mR]I+ &?a.mh/8[[ #pragma data_seg("shareddata")
QjukK6#W HHOOK hHook =NULL; //钩子句柄
(Nz]h:}r UINT nHookCount =0; //挂接的程序数目
R "E<8w static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
sQk|I x static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
t*+! n.p static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
t.3\/ static int KeyCount =0;
."JzDs static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
l]vohLz
3! #pragma data_seg()
=g0*MZ;" Oje|bxQ 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。
H2\1gNL sX'U|)/pD 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:
1*R_"# 1=TSJ2{9 BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
MTB@CP!u cKey,UCHAR cMask)
ATO
5 {
nGZ\<- BOOL bAdded=FALSE;
Ff/Ig]Lb for(int index=0;index<MAX_KEY;index++){
r%!FmS< if(hCallWnd[index]==0){
mq`5w)S)\o hCallWnd[index]=hWnd;
T0L+z/N_m. HotKey[index]=cKey;
A#:8X1w HotKeyMask[index]=cMask;
5fq.*1f bAdded=TRUE;
cqg=8$ RB KeyCount++;
{(HxG4~ break;
8*k oxS }
G^"H*a }
]IXAucI] return bAdded;
S1C^+Sla] }
, ,{6m
d //删除热键
3L fTGO BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
B007x{-L {
B/u*<k4 BOOL bRemoved=FALSE;
T+W3_xIS X for(int index=0;index<MAX_KEY;index++){
8on[%Vk if(hCallWnd[index]==hWnd){
JFJIls if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
oQBiPN+v.3 hCallWnd[index]=NULL;
1,u{&%yL"w HotKey[index]=0;
QJ M(UfHUD HotKeyMask[index]=0;
(wlfMiO bRemoved=TRUE;
r03I*b KeyCount--;
ho|8U break;
%QE5<2k }
8DL hk }
4^MSX+zt }
^^Bm$9 return bRemoved;
Uf[T _ }
F(G<*lA 3#<'[TF00t y"Ihr5S\ DLL中的钩子函数如下:
oYg/*k7EDX ^(m0M$Wk* LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
{*nEKPq(_* {
_3KZME BOOL bProcessed=FALSE;
z qO$ if(HC_ACTION==nCode)
Lkp&;+ {
v+7*R)/ if((lParam&0xc0000000)==0xc0000000){// 有键松开
9g+UJ\u^ switch(wParam)
m\} =4b {
!a)s` case VK_MENU:
$*aE$O6l MaskBits&=~ALTBIT;
As p8qHS break;
J{^n=X9M0J case VK_CONTROL:
q1<Fg.-r MaskBits&=~CTRLBIT;
o>$|SU!a break;
8q{1E];:q case VK_SHIFT:
${CYDD"mdy MaskBits&=~SHIFTBIT;
V[To,f break;
UJ9q-r default: //judge the key and send message
j`+0.Zlq break;
1O- E], }
^VC7C~NZ!M for(int index=0;index<MAX_KEY;index++){
?bn;{c;E if(hCallWnd[index]==NULL)
CElPU`J,\[ continue;
/W? z0tk` if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
&KOO&, {
M@5KoMsB9 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
+0dQORo bProcessed=TRUE;
O'@m4@L }
0\ZaMu # }
wFn@\3%l` }
AE]i
V {p else if((lParam&0xc000ffff)==1){ //有键按下
)fy<P;g switch(wParam)
~t$mw, {
A&;EV#]ge case VK_MENU:
Y]M^n&f MaskBits|=ALTBIT;
;*"!:GR%h break;
''%;EW> case VK_CONTROL:
*u<rU,C8 MaskBits|=CTRLBIT;
oMz/sL'u break;
X!2.IsIS8 case VK_SHIFT:
QId"Cl)3 MaskBits|=SHIFTBIT;
li1v 4 break;
$:PF9pY( default: //judge the key and send message
4LJ]l:m break;
^#}dPGm }
$dr27tse&< for(int index=0;index<MAX_KEY;index++){
!~ BZHi6\ if(hCallWnd[index]==NULL)
XTIu(f|d_; continue;
JgxE|#*7U if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
L,yA<yrC {
-MQZiq7H4 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
B-B?Ff> bProcessed=TRUE;
g"TPII$ }
:QxL 9&" }
+p8qsT#7 }
T-hU+(+hg if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
9*7Hoi4Ji for(int index=0;index<MAX_KEY;index++){
[0d-CEp[ if(hCallWnd[index]==NULL)
H-;&xzAI continue;
rsd2v9 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
ev)rOcOU SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
(ra:?B //lParam的意义可看MSDN中WM_KEYDOWN部分
3"HGEUqA }
D)f5pEq' }
MT;SRAmUr }
6#OL
;Y]_ return CallNextHookEx( hHook, nCode, wParam, lParam );
k'6<jEbk }
YJ&lB&xH 2]?w~qjWm 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:
/ c4;3>IS !G+n"-h9' BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
aW52.X z%8 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
j|3g(_v4W o+]Y=r2 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:
7KvXTrN!9 g5lmUKlQ$0 LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
% JgRcx {
iSSc5ek4 if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
e{^:/WcYB {
P-/XYZ]` //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
Z?!JV_K SaveBmp();
{m?K2]]( return FALSE;
K> c8r8! }
Z/XM`Cy …… //其它处理及默认处理
(#fm (@T }
ccHLL6F{ H1aV}KD ?Zc/upd:$N 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。
>reaIBT BFzcoBu- 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。
$[HcHnf p?J~' 二、编程步骤
t(Q&H!~e
c9Y2eetO 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
mB{&7Rb0 *"|VNnB 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
Q0
uP8I}n 5Z4(J?n 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
icKg7-$N ]7XkijNb 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;
lpM>}0v 2<46jJYL' 5、 添加代码,编译运行程序。
oTplxF1 3s+<
三、程序代码
_IQU<Za fPh}l ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
::3iXk) #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
Q:-%3)g<< #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
0?J|C6XM#4 #if _MSC_VER > 1000
E<X{72fb> #pragma once
RTg Q#<W8 #endif // _MSC_VER > 1000
= )JVT$]w #ifndef __AFXWIN_H__
>|UrxJ7 #error include 'stdafx.h' before including this file for PCH
I]uOMWZs #endif
(<d&BV- " #include "resource.h" // main symbols
'S%} ?#J class CHookApp : public CWinApp
[*Aqy76Qa {
Yj^avO=; public:
1sIy*z CHookApp();
QK``tWLIg7 // Overrides
L5-T6CD // ClassWizard generated virtual function overrides
$'J6#Vs //{{AFX_VIRTUAL(CHookApp)
hJC
p0F9O public:
Ef,7zKG virtual BOOL InitInstance();
+q`rz virtual int ExitInstance();
&viwo}ls0 //}}AFX_VIRTUAL
%v`-uAy: //{{AFX_MSG(CHookApp)
uv~qK:Nw( // NOTE - the ClassWizard will add and remove member functions here.
/el["l // DO NOT EDIT what you see in these blocks of generated code !
B"?+5A7 //}}AFX_MSG
!i~x"1 DECLARE_MESSAGE_MAP()
}rj C_q };
#x4h_K
Y LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
?[hy|r6$ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
K#JabT BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
q{9X.-]} BOOL InitHotkey();
!yV,|)y5F BOOL UnInit();
Th&Wq #endif
Y^94iOk%T ?' ez.a} //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
5 CY_Ay\ #include "stdafx.h"
P*0nT #include "hook.h"
z'\}/k+ #include <windowsx.h>
pjKl)q #ifdef _DEBUG
[6&CloY3 #define new DEBUG_NEW
OUIUgej #undef THIS_FILE
m! '1$G static char THIS_FILE[] = __FILE__;
{LB
}v;?l #endif
9J2q`/6~e #define MAX_KEY 100
; mo\ yW1 #define CTRLBIT 0x04
Wd^F%)( #define ALTBIT 0x02
Bah.\ZsYQP #define SHIFTBIT 0x01
[d^: #pragma data_seg("shareddata")
[U3D`V$xD HHOOK hHook =NULL;
-hU>1ux&V UINT nHookCount =0;
{l *&l2 static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
?sjZ13 SUa static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
:cmI"Bo static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
aCYm$6LmA static int KeyCount =0;
w
~L\Ebg static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
JK:mQ_ #pragma data_seg()
mNnw G);$ HINSTANCE hins;
\AtwO void VerifyWindow();
lEYT{ BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
HM$`z"p5jg //{{AFX_MSG_MAP(CHookApp)
MWn L#! // NOTE - the ClassWizard will add and remove mapping macros here.
mSk :7ozZ // DO NOT EDIT what you see in these blocks of generated code!
v]`A_)[ //}}AFX_MSG_MAP
\: _.N8" END_MESSAGE_MAP()
Y#SmZ*zok
'wB Huq CHookApp::CHookApp()
K9I,Q$&xX {
pw<q?q% // TODO: add construction code here,
[oU+b( // Place all significant initialization in InitInstance
yf#%)-7( }
M::IE|h C)KtM YA, CHookApp theApp;
e??{&[ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
/|u]Y/ * {
}x#P<d( BOOL bProcessed=FALSE;
wc+N if(HC_ACTION==nCode)
T956L'.+G {
49J+&G?)j if((lParam&0xc0000000)==0xc0000000){// Key up
mBpsgm:g^ switch(wParam)
WRcFE< {
`6BS-AVO7 case VK_MENU:
FbCZV3Y MaskBits&=~ALTBIT;
|B{$URu break;
,5A>:2 zs case VK_CONTROL:
"{ QHWZ MaskBits&=~CTRLBIT;
Nh\8+v*+{ break;
DKVt8/vq case VK_SHIFT:
{OhkuON MaskBits&=~SHIFTBIT;
H-cBXp5z break;
R
!%m5Q?5 default: //judge the key and send message
?k:])^G5 break;
Er/5 , }
Tm:#"h\F for(int index=0;index<MAX_KEY;index++){
(E1>} if(hCallWnd[index]==NULL)
Q@ ) rw0$ continue;
-g[*wN8 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
)[M<72 {
!NAX6m SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
4gv XJK- bProcessed=TRUE;
\2<yZCn }
mN'9|`>V> }
HsgTHe }
^9*|_\3N else if((lParam&0xc000ffff)==1){ //Key down
9-E>n) switch(wParam)
#c)Ou!Ldb {
j3[OY case VK_MENU:
s-N?Tzi MaskBits|=ALTBIT;
9;v"bcQ break;
V+a%,sI case VK_CONTROL:
*r?51*J MaskBits|=CTRLBIT;
+ $a:X break;
Obc3^pV& case VK_SHIFT:
Ae_ E;[mj MaskBits|=SHIFTBIT;
;gW|qb+#)j break;
{O&liU4 default: //judge the key and send message
LjQ1ar\ break;
4tTZkJc }
g/X=#! for(int index=0;index<MAX_KEY;index++)
33KPo0g7 {
h'y@M+c( if(hCallWnd[index]==NULL)
[rQ(ae continue;
wIR[2&b if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
13&>w{S} {
K<L%@[gi SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
^$Io;*N4 bProcessed=TRUE;
qp_ `Fj: }
wY
;8UN }
YlcF-a }
v3JIUdU=P if(!bProcessed){
+@)$l+kk9 for(int index=0;index<MAX_KEY;index++){
yzNX2u1 if(hCallWnd[index]==NULL)
L{0OMyUA continue;
S5
nw if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
S,tVOxs^ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
8m[L]6F(-z }
MW[ 4^ }
yoY)6cn@ }
*,[=}v1 return CallNextHookEx( hHook, nCode, wParam, lParam );
"!/_h > }
re7\nZ<\| iM/0Yp-v'> BOOL InitHotkey()
Nt^&YE7d: {
>(6\ C if(hHook!=NULL){
rnhf(K.{3 nHookCount++;
75}u
D return TRUE;
?{z${ bD }
kt3#_d^El else
<$ZT]p T hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
z%dlajYm: if(hHook!=NULL)
i|,A1c"* nHookCount++;
_>m*`:Wb return (hHook!=NULL);
|ShRxE3@' }
fG$.DvJuK BOOL UnInit()
RHAr[$ {
XXwhs-:o if(nHookCount>1){
q
vVZA* nHookCount--;
z+D,:!yF return TRUE;
Xsn - +e }
_]ttKT(
BOOL unhooked = UnhookWindowsHookEx(hHook);
ulSTR f if(unhooked==TRUE){
h%^kA@3F nHookCount=0;
Lpbn@y26< hHook=NULL;
RMt vEa }
_vLT!y return unhooked;
WI!z92qq[ }
4$2T zJE !cq|g BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Tc(v\|F, {
r=||sZs BOOL bAdded=FALSE;
rtF6Lg for(int index=0;index<MAX_KEY;index++){
<r`Jn49 if(hCallWnd[index]==0){
>~>[}d;glw hCallWnd[index]=hWnd;
jTgh+j]AP HotKey[index]=cKey;
;<@O^_+ HotKeyMask[index]=cMask;
X$&Sw3c bAdded=TRUE;
,UZE;lXJ'Q KeyCount++;
KJC9^BAr break;
_po 4(U& }
L"IHyUW }
Aq]'.J=4 return bAdded;
wEc5{ b5M }
}o:sx/=u_ `oWjq6 BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
FH21m wV {
BF[?* b BOOL bRemoved=FALSE;
0a%ui2k for(int index=0;index<MAX_KEY;index++){
9S1V!Jp if(hCallWnd[index]==hWnd){
64>[pZF8 if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
w&cyGd D5 hCallWnd[index]=NULL;
knzED~v@( HotKey[index]=0;
)-"L4TC) HotKeyMask[index]=0;
*dTf(J bRemoved=TRUE;
lFV|GJ KeyCount--;
g uWqHVSs break;
0_pwY=P }
F^G`Jf }
76r
s)J[*w }
#R~NR8(z return bRemoved;
Q%1;{5 }
T2; 9 q.F1Jj void VerifyWindow()
B"zg85
e {
3 v$4LY for(int i=0;i<MAX_KEY;i++){
CHw_?#h if(hCallWnd
!=NULL){ O~0
1)%
if(!IsWindow(hCallWnd)){ #p`7gFl
hCallWnd=NULL; , tj7'c$0
HotKey=0; L^s;kkB
HotKeyMask=0; 8J1.(Mwb?
KeyCount--; J*C*](
} ]LOtwY
} }jgAV
} +r P<m
} :8wF0n-'
!`=?<Fl
BOOL CHookApp::InitInstance() 6e|5qKr
{ $*-L8An?
AFX_MANAGE_STATE(AfxGetStaticModuleState()); Cjk AQ(9
hins=AfxGetInstanceHandle(); ;<<IXXKU
InitHotkey(); S$On$]~\"
return CWinApp::InitInstance(); Bcon4
} I>Yp=R
6l7a9IJ
int CHookApp::ExitInstance() bLF0MVLM
{ %~2m$#)
VerifyWindow(); ^v|!(h\ZC
UnInit(); Hv*O9!cC
return CWinApp::ExitInstance(); ,peE'
} Bys|i 0tb-
p'} %pAY
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file ScKfr
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) :C6rN}_k
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ FCJ(D!
#if _MSC_VER > 1000 3U$fMLx]k
#pragma once xyz86r ^u
#endif // _MSC_VER > 1000 CnYX\^Ow
,jcp"-5#j
class CCaptureDlg : public CDialog Ec
7M'~1
{ b7j#a#
// Construction j=S"KVp9NF
public: wJkkc9Rh'(
BOOL bTray; ;f~'7RKy!G
BOOL bRegistered; %TgM-F,8
BOOL RegisterHotkey(); 9Bw"VN]W
UCHAR cKey; _Z2)e*(
UCHAR cMask; P[i/o#
void DeleteIcon(); ix`x dVj`
void AddIcon(); ^dD?riFAk
UINT nCount; fZgU@!z
void SaveBmp(); \RO Sd
CCaptureDlg(CWnd* pParent = NULL); // standard constructor sTyGi1
// Dialog Data /^G+vhlf\
//{{AFX_DATA(CCaptureDlg) $7YLU{0
enum { IDD = IDD_CAPTURE_DIALOG }; #JucOWxjY
CComboBox m_Key; '~J6mojE
BOOL m_bControl; Su #1yw>
BOOL m_bAlt; RUu'9#fq
BOOL m_bShift; B=`!
CString m_Path; ?,C,q5
T\
CString m_Number; cn:VEF:l
//}}AFX_DATA 1j,Y
// ClassWizard generated virtual function overrides p\\q[6
//{{AFX_VIRTUAL(CCaptureDlg) pE,BE%
public: PX)qA=4q
virtual BOOL PreTranslateMessage(MSG* pMsg); _P1-d`b0 a
protected: WpZ^R;eK
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 8t!"K_Mkx
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); kw'D2692
//}}AFX_VIRTUAL cgOoQP/#
// Implementation UUq9UV-h
protected: C:{'0m*jKs
HICON m_hIcon; S(l^TF
// Generated message map functions U+
=q_ <
//{{AFX_MSG(CCaptureDlg) W9~datIh>
virtual BOOL OnInitDialog(); O~VUViS6$
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); xd<68%Cn
afx_msg void OnPaint(); w"|c;E1;_
afx_msg HCURSOR OnQueryDragIcon(); Ipx:k+J
virtual void OnCancel(); r%i{a
afx_msg void OnAbout(); bT}WJ2}
afx_msg void OnBrowse(); Fu$sfq
afx_msg void OnChange(); l1S1CS
//}}AFX_MSG ^*OA%wg3=h
DECLARE_MESSAGE_MAP() add-]2`
}; L6.R?4B
#endif /o2eKx
."O(Ig[
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file ,e,{6Sg6gl
#include "stdafx.h" )Be;Zw.|
#include "Capture.h" I<U 1V<g
#include "CaptureDlg.h" ?}>tfDu'
#include <windowsx.h> 4r*6fJ*bJ
#pragma comment(lib,"hook.lib") cS"6%:hQ
#ifdef _DEBUG \Wk$>?+#@
#define new DEBUG_NEW JV>OmUAk
#undef THIS_FILE Pt+_0OsR
static char THIS_FILE[] = __FILE__; kn.z8%^(
#endif M> <
#define IDM_SHELL WM_USER+1 V*~5*OwB
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); 4dP_'0]9A:
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); )LG/n
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; {ex]_V>
class CAboutDlg : public CDialog 8ZDq
KQ1;
{ yS""*8/
public: '4rgIs3=x"
CAboutDlg(); +#no$m.bH
// Dialog Data AdNsY/ Y(
//{{AFX_DATA(CAboutDlg)
B|&<
enum { IDD = IDD_ABOUTBOX }; pif gt
//}}AFX_DATA Fh'Jb*|Q
// ClassWizard generated virtual function overrides mqL+W
//{{AFX_VIRTUAL(CAboutDlg) gNeCnf#Xa
protected: rgCId@R
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support eMwf'*#
//}}AFX_VIRTUAL r[x7?cXsW
// Implementation 5tL6R3
protected: *QX$Mo^E
//{{AFX_MSG(CAboutDlg) 8
_J:Yg
//}}AFX_MSG XN@5TZoaW
DECLARE_MESSAGE_MAP() >+r2I%
}; vhC"f*
?m6E@.{
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) ]2jnY&a5
{ G r)+O
//{{AFX_DATA_INIT(CAboutDlg) e(^O8
//}}AFX_DATA_INIT D<`X
B*
} yT4|eHl
VWi-)
void CAboutDlg::DoDataExchange(CDataExchange* pDX) |8B[yr.b
{ 3]i1M%'i
CDialog::DoDataExchange(pDX); C6`8dn
//{{AFX_DATA_MAP(CAboutDlg) RUEUn
//}}AFX_DATA_MAP `6/7},"9t
} fCKcv |
*uIHa"
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) rZEu@63
//{{AFX_MSG_MAP(CAboutDlg) xM:dFS
// No message handlers .1@5*xQ5O
//}}AFX_MSG_MAP KR*/ye G!E
END_MESSAGE_MAP() "O4Z).5q3
JF7T1T
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) -[ =`bHo
: CDialog(CCaptureDlg::IDD, pParent) = U5)m
{ ?2M15Q
//{{AFX_DATA_INIT(CCaptureDlg) ?=,tcN
m_bControl = FALSE; MAXdgL[]
m_bAlt = FALSE; ll#PCgIm
m_bShift = FALSE; iAN#TCwLT7
m_Path = _T("c:\\"); ~4M]SX1z
m_Number = _T("0 picture captured."); &e(de$}xt
nCount=0; i<
ih :
bRegistered=FALSE; _
|; bh
bTray=FALSE; nT>?}/S
//}}AFX_DATA_INIT Oj:`r*z43
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 W+S>/`N
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); k`- L5#`
} w*+rB p,f
>QyMeH
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) u1uY*p
{ K"pfp !Y
CDialog::DoDataExchange(pDX); 1#'wR3[+
//{{AFX_DATA_MAP(CCaptureDlg) Xf0pQ]8\
DDX_Control(pDX, IDC_KEY, m_Key); 4&\m!s
DDX_Check(pDX, IDC_CONTROL, m_bControl); @*oi1_q
DDX_Check(pDX, IDC_ALT, m_bAlt); 6V)# Yf
DDX_Check(pDX, IDC_SHIFT, m_bShift); l$FHL2?Cp
DDX_Text(pDX, IDC_PATH, m_Path); it.l;L_nW
DDX_Text(pDX, IDC_NUMBER, m_Number); `27? f$,
//}}AFX_DATA_MAP Kl*##qw!
} 9u9#&xx
G/y< bPQ
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) /4|qfF3
//{{AFX_MSG_MAP(CCaptureDlg) Uz0mSfBp
ON_WM_SYSCOMMAND() G
-;Yua2\
ON_WM_PAINT() ]?kf;A@
ON_WM_QUERYDRAGICON() ' :Te#S
ON_BN_CLICKED(ID_ABOUT, OnAbout) 6ugBbP +^
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) 'j.{o
ON_BN_CLICKED(ID_CHANGE, OnChange) Rk'Dd4"m,
//}}AFX_MSG_MAP P=h2Z,2
END_MESSAGE_MAP() = *sP,
6
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$
BOOL CCaptureDlg::OnInitDialog() `);`E_'U
k
{ D@2Tx
CDialog::OnInitDialog(); xzy9~))o
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); |h#mv~cF
ASSERT(IDM_ABOUTBOX < 0xF000); cv^^NgQ
CMenu* pSysMenu = GetSystemMenu(FALSE); `: 8&m
if (pSysMenu != NULL) W>"i0p
{ RGiA>Z:W
CString strAboutMenu; n_aKciF
strAboutMenu.LoadString(IDS_ABOUTBOX); A81kb
if (!strAboutMenu.IsEmpty()) xTe?*
{ p~r +2(J
pSysMenu->AppendMenu(MF_SEPARATOR); pd|c7D!6U,
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); 4[6A~iC_
} '\9A78NV{;
} $r dA0%;
SetIcon(m_hIcon, TRUE); // Set big icon )wKuumet
SetIcon(m_hIcon, FALSE); // Set small icon TPkm~>zD.
m_Key.SetCurSel(0); xT@\FwPr
RegisterHotkey(); 4Ld0AApncy
CMenu* pMenu=GetSystemMenu(FALSE); ^,?]]=mE
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); [P[syi#]t
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); +%FGti$[
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); lVqvS/_k$
return TRUE; // return TRUE unless you set the focus to a control sl)_HA7G
} MOj 0"x)
Gm*i='f!?
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) sI~{it#
{ HMBxj($eR
if ((nID & 0xFFF0) == IDM_ABOUTBOX) r+) A)a,
{ 13B[mp4
CAboutDlg dlgAbout; $
@^n3ZQ4
dlgAbout.DoModal(); %DiZ&}^Ck
} %N!Y}$y
else iJq}tIk#2'
{ #fa~^]EM]
CDialog::OnSysCommand(nID, lParam); gP<l
} 50CU|
} N?~K9jGx(
?4xTA
void CCaptureDlg::OnPaint() =6? 3c\
{ H*l8,*M}
if (IsIconic()) ~_R=2t{u_
{
|,.glL
CPaintDC dc(this); // device context for painting {4#'`Eejj
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); T9u/|OP
// Center icon in client rectangle B=9|g1e
int cxIcon = GetSystemMetrics(SM_CXICON); |vzGFfRI
int cyIcon = GetSystemMetrics(SM_CYICON); h8n J$jg
CRect rect; ?+51 B-
GetClientRect(&rect); YncY_Hu
int x = (rect.Width() - cxIcon + 1) / 2; >V NMQ
int y = (rect.Height() - cyIcon + 1) / 2; #.) qQ8*(
// Draw the icon Nn%{Ka
dc.DrawIcon(x, y, m_hIcon); Jln dypE
} f4uK_{
else K^9!Qp
{ Vk[m$
CDialog::OnPaint(); 3EAu#c@q"
} `57ffQR9
} Dtelr=/s
Nk]r2^.z[
HCURSOR CCaptureDlg::OnQueryDragIcon() 9!PJLI=D
{ l^fz
return (HCURSOR) m_hIcon; V7 c7(G
} z )k\p'0"
i5|!MIY
void CCaptureDlg::OnCancel() ?(hdV?8)P
{ 7Sr7a{
if(bTray) pnDD9u-4;
DeleteIcon(); 7ej"q
CDialog::OnCancel(); LR}b^QU7
} ~`T3 i
\U,.!'+
void CCaptureDlg::OnAbout() GYCc)Guc
{ Ao 1*a%-.
CAboutDlg dlg; DaaLRMQ=
dlg.DoModal(); p.&FK'&[0
} :rwF5
oT.g@kf=H
void CCaptureDlg::OnBrowse() k_$w+Q
{ "<NQ2Vr]5
CString str;
5G=2=E
BROWSEINFO bi; KI#),~nS
char name[MAX_PATH]; Q+gQ"l,95
ZeroMemory(&bi,sizeof(BROWSEINFO)); `AQv\@wp
bi.hwndOwner=GetSafeHwnd(); eZT923tD
bi.pszDisplayName=name; +ImPNwrY
bi.lpszTitle="Select folder"; u9QvcD^'z
bi.ulFlags=BIF_RETURNONLYFSDIRS; .\qZkk}2l
LPITEMIDLIST idl=SHBrowseForFolder(&bi); <[kdF")
if(idl==NULL) rs'~' Y
return; IC37f[Q
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); DTPYCG&%
str.ReleaseBuffer(); L<*wzl2Go
m_Path=str; or>5a9pj
if(str.GetAt(str.GetLength()-1)!='\\') *tO7A$LDT
m_Path+="\\"; nO2-fW:9]
UpdateData(FALSE); o|(-0mWBQA
} C%0 |o/Wi
<e)3 j6F!
void CCaptureDlg::SaveBmp() &p`RKD
{ 5
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CDC dc; [@_}BZk
dc.CreateDC("DISPLAY",NULL,NULL,NULL); ! ai, \
CBitmap bm; ;)~loa1\
int Width=GetSystemMetrics(SM_CXSCREEN); m^% [
int Height=GetSystemMetrics(SM_CYSCREEN); 0k0y'1SL
bm.CreateCompatibleBitmap(&dc,Width,Height); D?;$:D"
CDC tdc; _6(QbY'JV`
tdc.CreateCompatibleDC(&dc); *EvnN:
CBitmap*pOld=tdc.SelectObject(&bm); +QqYf1@F
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); p.n+m[
tdc.SelectObject(pOld); {w1sv=$+
BITMAP btm; j[v<xo
bm.GetBitmap(&btm); >y
&9!G
DWORD size=btm.bmWidthBytes*btm.bmHeight; k7W7S`H
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); AMGb6enl
BITMAPINFOHEADER bih;
]8<;,}#
bih.biBitCount=btm.bmBitsPixel; $-EbJ
bih.biClrImportant=0; _T7tq
bih.biClrUsed=0; wZ5+ H%x
bih.biCompression=0; |#Z:v1]"
bih.biHeight=btm.bmHeight; '/J}T -,Z
bih.biPlanes=1; a$l
bih.biSize=sizeof(BITMAPINFOHEADER); +K])&}Dw
bih.biSizeImage=size; inBBU[Sl
bih.biWidth=btm.bmWidth; D}r,t_]Eb
bih.biXPelsPerMeter=0; bT2 b)nf
bih.biYPelsPerMeter=0; ng;,;o.
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); lrPiaSO`I
static int filecount=0; ^?VYE26
CString name; U5[xW
name.Format("pict%04d.bmp",filecount++); HE,# pj(D
name=m_Path+name; TG~:Cmc
BITMAPFILEHEADER bfh; !
jm>
bfh.bfReserved1=bfh.bfReserved2=0; PTXy:>]M
bfh.bfType=((WORD)('M'<< 8)|'B'); HY4X;^hF
bfh.bfSize=54+size; :
2Ho
bfh.bfOffBits=54; 7loIX Qw
CFile bf; !'Q/9%g
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ |<t"O
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); s`B "qw
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); lED-Jo2
bf.WriteHuge(lpData,size); 3M=ym.
bf.Close(); R_e{H^pY^
nCount++; PMe bn$(
} ^F"Q~?D)
GlobalFreePtr(lpData); mFC0f?nr
if(nCount==1) ggR@& \
m_Number.Format("%d picture captured.",nCount); :n4?
else C0eP/d
m_Number.Format("%d pictures captured.",nCount); _@3@_GE
UpdateData(FALSE); nlQ<Aa-%
} C0|<+3uND=
CqDKQQ
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) ( 6|S42
{ XbsEO>_Z'A
if(pMsg -> message == WM_KEYDOWN) -K9bC3H
{ p,.+i[V
if(pMsg -> wParam == VK_ESCAPE) ^p?O1qTg
return TRUE; *4"s,1?@BG
if(pMsg -> wParam == VK_RETURN) M^JRHpTn
return TRUE; BFmd`#{l
} ? >SC:{(
return CDialog::PreTranslateMessage(pMsg); 8M9 &CsT6
} j'Z};3y
eLXG _Qb"
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) U ?P5cN
{ I0trHrX9
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ G%_6"s
SaveBmp(); CZcnX8P'8
return FALSE; }J"}5O2,b
} ua#sW
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ cLj@+?/
CMenu pop; L
s6P<"V
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); k7yQEU
CMenu*pMenu=pop.GetSubMenu(0); sS/#)/B
pMenu->SetDefaultItem(ID_EXITICON); Rd7Xs
CPoint pt; ,iY/\
U''
GetCursorPos(&pt); ~0aWjMc(>
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); ]:m>pI*z.
if(id==ID_EXITICON) d~1Nct$:
DeleteIcon(); pCS2sq8RC
else if(id==ID_EXIT) 6m"_=.k%
OnCancel(); yNMnByg3?
return FALSE; *u^N_y
} b0|q@!z>
LRESULT res= CDialog::WindowProc(message, wParam, lParam); i>#[*.|P
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) m`l3@Z
AddIcon(); ]@)T]
return res; /*\pm!]._^
} , v,mBYaU
<8nl}^d5
void CCaptureDlg::AddIcon() SV*h9LL
{ ~?TGSD@(
NOTIFYICONDATA data; 7714}%Z
data.cbSize=sizeof(NOTIFYICONDATA); 69AgPAv<k
CString tip; H)tnxD0)
tip.LoadString(IDS_ICONTIP); Cg[]y1Ne
data.hIcon=GetIcon(0); ~=qJSb
data.hWnd=GetSafeHwnd(); ""Nu["|E
strcpy(data.szTip,tip); U+gOojRy{
data.uCallbackMessage=IDM_SHELL; p_T>"v
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; '#K:e
data.uID=98; 02OL-bv}HS
Shell_NotifyIcon(NIM_ADD,&data); __<