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:
2qV oe}F
j0Cj&x%qF} 一、实现方法
O0_RW`69 rR/{Yx4 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:
9@mvG^ +!:=Mm #pragma data_seg("shareddata")
^qVBg BPb HHOOK hHook =NULL; //钩子句柄
/C<p^#g9. UINT nHookCount =0; //挂接的程序数目
&U`ug"/k static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
WWOt>C~zV static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
r=7!S8' static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
`}L{gssv static int KeyCount =0;
)J+A2> static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
~J#Z7y]p!j #pragma data_seg()
M_%c9g@x M0?%r` 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。
ly_8p63- A>mk0P)~Q 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:
Akws I@@ k!bJ&} Q(b BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
35x]' cKey,UCHAR cMask)
n0EW
U,1 {
1_;{1O+B BOOL bAdded=FALSE;
*(5T?p[7 for(int index=0;index<MAX_KEY;index++){
D#`>p if(hCallWnd[index]==0){
0%q H=do6 hCallWnd[index]=hWnd;
~6O~Fth HotKey[index]=cKey;
&m\Uc HotKeyMask[index]=cMask;
L(k`1E bAdded=TRUE;
=:6B`,~C KeyCount++;
QoxQ"r9Wh break;
^K4?uABc }
~J5B?@2hK }
XIdC1%pr; return bAdded;
CvEIcm=t }
g>gf-2%Uo //删除热键
O(e!Vx{t! BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
f#7=N{wm {
S,avvY.U\ BOOL bRemoved=FALSE;
GDiyFTr for(int index=0;index<MAX_KEY;index++){
,Jn` qvmi if(hCallWnd[index]==hWnd){
4M6[5RAW{ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
9`"#OQPn1 hCallWnd[index]=NULL;
F~7TE91C HotKey[index]=0;
oQ*LP{M HotKeyMask[index]=0;
tGbx/$Y bRemoved=TRUE;
voTP,R[}85 KeyCount--;
[f[Wz{Q#Y break;
M"qS#*{ }
T5I#7LN# }
a<E9@ }
P3Vh|<'7 return bRemoved;
-yBj7F| }
^-|~c`&}B ^|hVFM2 SkCux DLL中的钩子函数如下:
pp7
$Q>6 [gZR}E LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
/;[x3}[ {
c^puz2 BOOL bProcessed=FALSE;
&"27U if(HC_ACTION==nCode)
_V0%JE' {
D:z_FNN if((lParam&0xc0000000)==0xc0000000){// 有键松开
:V@)A/}uk switch(wParam)
PDz:x4A {
UlNV%34" case VK_MENU:
mI:^lp MaskBits&=~ALTBIT;
\IudS{
.?; break;
M`@AS L:u case VK_CONTROL:
Xh3b=i|K MaskBits&=~CTRLBIT;
z}7}D ! break;
hn/yX|4c( case VK_SHIFT:
NpKyrXDJv MaskBits&=~SHIFTBIT;
dD~H ft break;
f5{|_]q] default: //judge the key and send message
<r>Sj/w<D break;
WiQVZ{ }
o1*P|.`
for(int index=0;index<MAX_KEY;index++){
3 p?nQ
O)L if(hCallWnd[index]==NULL)
\DBEs02 continue;
fOdqr if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
}QQ 7jE {
`R7dn/ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
X?&{<
vz bProcessed=TRUE;
_6`GHx }
Qe4 % A }
X%N!gy }
PBFpV8P, else if((lParam&0xc000ffff)==1){ //有键按下
s1#A0%gx switch(wParam)
6X?:mn'%QF {
![fNlG!r case VK_MENU:
#Ak|p#7 ^ MaskBits|=ALTBIT;
1wdc4> break;
~Eb:AC5 case VK_CONTROL:
qdmAkYUC MaskBits|=CTRLBIT;
:*DWL!a break;
FZZO-,xa case VK_SHIFT:
~3Zz.!F MaskBits|=SHIFTBIT;
q@;1{ break;
y65lbl%Zn default: //judge the key and send message
h+&iWb3; break;
;cPPx`0$9 }
Y|J=72!]
for(int index=0;index<MAX_KEY;index++){
YK$[)x\S if(hCallWnd[index]==NULL)
iVf7;M8O continue;
~{-Ka>A if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
])%UZM6 {
h| `R[ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
0E,QOF{o bProcessed=TRUE;
fR+{gazk
n }
Doq}UWp }
A"s?;hv\fS }
j {2 0 if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
Dv`"3 for(int index=0;index<MAX_KEY;index++){
}aI>dHL if(hCallWnd[index]==NULL)
~gOZ\jm} continue;
ocMTTVo if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
v0=v1G*rvJ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
c#1kg@q@ //lParam的意义可看MSDN中WM_KEYDOWN部分
~RwoktO }
suW|hh1/Ya }
:F#^Q%-IS }
7#oq|5 return CallNextHookEx( hHook, nCode, wParam, lParam );
V[]Pya|s+ }
8O60pB;4 8bs' Ek{'o 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:
kumo%TXB& RP[`\ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
Ex|Z@~T12 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
&5bIM>)v @Bjp7v:w 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:
kdx06'4o DHuvHK0# LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
5} ur,0{ {
<sM_zoprc if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
U>bIQk"4 {
'irwecd8 //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
`
"-P g5 SaveBmp();
4GeN<9~YS return FALSE;
t%5bDdo }
[e@m-/B …… //其它处理及默认处理
&(l.jgqg& }
in,0(I&I )'e1@CR O@W/s!&lFa 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。
ZWzr8oY) yV(9@lj3; 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。
-"a(<JC^NI +ZiYl[_| 二、编程步骤
m .(\u?J 1OMaY5F 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";
N#)Klq87z 3O1Lv2)_ 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
9) $[W U:eX^LE7 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
<SOG?Lh~ ,{msJyacmR 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
d)D!np= &m[}%e%~0 5、 添加代码,编译运行程序。
02tN=}Cj) -aE,KQ 三、程序代码
F9r/
M"5 F$|:'#KN ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
;mz#$"( #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
F2_'U' a #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
#f_'&m #if _MSC_VER > 1000
h6<i,1gQ1 #pragma once
^`aw5 +S #endif // _MSC_VER > 1000
\ Ucv<S #ifndef __AFXWIN_H__
cXf/ #error include 'stdafx.h' before including this file for PCH
\-{$IC-L #endif
7bRfkKD #include "resource.h" // main symbols
l,(:~KH| class CHookApp : public CWinApp
4}cxSl]jf! {
E4Ez)IaKyi public:
n5BD0q CHookApp();
t0v>J9 // Overrides
7r)]9_[( // ClassWizard generated virtual function overrides
!O}e)t //{{AFX_VIRTUAL(CHookApp)
9%3+\[s1 public:
r|\{!;7 virtual BOOL InitInstance();
-e_TJA virtual int ExitInstance();
61&{I>~1 //}}AFX_VIRTUAL
7IkEud //{{AFX_MSG(CHookApp)
ht>/7.p] // NOTE - the ClassWizard will add and remove member functions here.
x>BFK@# // DO NOT EDIT what you see in these blocks of generated code !
)b=vBs`% //}}AFX_MSG
s6(md<r DECLARE_MESSAGE_MAP()
_/cX!/" };
O'#;Ge/, LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
j%Z5[{!/,X BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
C2=PGq BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
iQG]v[$ BOOL InitHotkey();
GBR$k P BOOL UnInit();
B"#pvJN #endif
<|X+T, 5M #',(X //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
w2/3[VZ}l #include "stdafx.h"
)K$xu (/K #include "hook.h"
hu"-dT;4] #include <windowsx.h>
0`p"7!r #ifdef _DEBUG
ot!m=s #define new DEBUG_NEW
&(Hw:W9 #undef THIS_FILE
/-^J0f+l3 static char THIS_FILE[] = __FILE__;
s"w^E\>6 #endif
GE=S.P; #define MAX_KEY 100
@"/H
er #define CTRLBIT 0x04
ZF#n(Y? #define ALTBIT 0x02
'Z9UqEGV #define SHIFTBIT 0x01
a MFUj+^ #pragma data_seg("shareddata")
tQUKw@@Q HHOOK hHook =NULL;
upZc~k!1\ UINT nHookCount =0;
#*"V'dj;e static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
<&O*'
<6C static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
a|4D6yUw| static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
n&|N=zh static int KeyCount =0;
DcM/p8da static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
T\6,@7 #pragma data_seg()
.'38^ HINSTANCE hins;
n<> ^cD void VerifyWindow();
(f_J @n BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
q *Hg-J} //{{AFX_MSG_MAP(CHookApp)
&?5)Jis: // NOTE - the ClassWizard will add and remove mapping macros here.
B~qo^ppVU // DO NOT EDIT what you see in these blocks of generated code!
i!3*)-a\~` //}}AFX_MSG_MAP
oAB:H\ END_MESSAGE_MAP()
`nEqw/I f O+lD CHookApp::CHookApp()
?Ov~\[) F {
T@#?{eA // TODO: add construction code here,
<ME>#, // Place all significant initialization in InitInstance
&sBD0R(a }
?2,D-3 { 0o6o<ggi CHookApp theApp;
/dvronG LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
,g*3u {
=-GxJPL BOOL bProcessed=FALSE;
{r|RH"|?Z( if(HC_ACTION==nCode)
y\-iGKz{0 {
o]qwN:8^ if((lParam&0xc0000000)==0xc0000000){// Key up
~dLbhjden switch(wParam)
'|5o(6u' {
@.}Y'`9L case VK_MENU:
/%p
~ MaskBits&=~ALTBIT;
_zzNF93Bn break;
$""kZ case VK_CONTROL:
#=ij</ MaskBits&=~CTRLBIT;
8No'8(dPX break;
<6,,:=# case VK_SHIFT:
h>cjRH?e MaskBits&=~SHIFTBIT;
cT/mi":8{ break;
;YMg4Cs default: //judge the key and send message
3$5E1*ed break;
?P>4H0@I+ }
u#^l9/tl for(int index=0;index<MAX_KEY;index++){
iPWr- if(hCallWnd[index]==NULL)
,mi7WW9 continue;
Mk973'K' if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
9h)8Mq+M {
F!/-2u5gF SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
*HGhm04F{ bProcessed=TRUE;
v+79#qWK|n }
c9CFGo?)N }
'
;nG4+K }
DS7L}] else if((lParam&0xc000ffff)==1){ //Key down
em )%U switch(wParam)
)flm3G2u {
\awkt!Wa case VK_MENU:
-Q?c'e MaskBits|=ALTBIT;
0a<h,s0"2 break;
8tna<Hx case VK_CONTROL:
/7p(%vr MaskBits|=CTRLBIT;
41+WIa
L break;
l`:u5\ rM case VK_SHIFT:
X%(NI(+x, MaskBits|=SHIFTBIT;
Ej6ho 0_ break;
@)[8m8paV default: //judge the key and send message
R)*l)bpZ# break;
p$jAq~C }
>b5 ;I1o=y for(int index=0;index<MAX_KEY;index++)
(aSuxl.Dq {
zF{~Md1 if(hCallWnd[index]==NULL)
K`<HZK continue;
Pi9?l> if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
XD0a :T) {
6Uq;]@k% SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
Zz/p'3?# bProcessed=TRUE;
*fv BB9raq }
Fo;:GX,b }
,RY;dX-# }
S+-$Ih`[ if(!bProcessed){
=h|cs{eT\2 for(int index=0;index<MAX_KEY;index++){
Zby3.=.e if(hCallWnd[index]==NULL)
CQa8I2VF
( continue;
cjO%X if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
.sM,U SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
x{K"z4xbI }
'r\RN\PT }
I^u~r. }
Kr1Y3[iNv return CallNextHookEx( hHook, nCode, wParam, lParam );
oz,.gP% }
Buh}+n2]5 `^'fS@VA BOOL InitHotkey()
*jPd=+d {
wQd8/&mmk if(hHook!=NULL){
dPf7o
nHookCount++;
7[mfI?*m return TRUE;
+TaxH; }
w{2CV\^>5 else
yqL" YD hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
kTI5CoXzq if(hHook!=NULL)
Q3^h nHookCount++;
S^p^)
fAmF return (hHook!=NULL);
&k)v/ }
FPF$~ sX BOOL UnInit()
/3SEu(d! {
6<QC|>p if(nHookCount>1){
t6mv nHookCount--;
p[].4_B; return TRUE;
}mIN)o }
~tRGw^<9 BOOL unhooked = UnhookWindowsHookEx(hHook);
Is<XMR|{ if(unhooked==TRUE){
j%w^8}U>G nHookCount=0;
AJ&j|/ hHook=NULL;
*V\.6,^v }
]$9y7Bhj. return unhooked;
Ml{
]{n }
8-k`"QI= 2fu<s^9dh BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
:b %2qBv {
ISK 8t BOOL bAdded=FALSE;
h!|U j for(int index=0;index<MAX_KEY;index++){
r<:d+5" if(hCallWnd[index]==0){
`aG_ m/7| hCallWnd[index]=hWnd;
U$+,|\9 HotKey[index]=cKey;
;s3\Z^h4kd HotKeyMask[index]=cMask;
gC iM\Qx bAdded=TRUE;
1jop;{,^ KeyCount++;
}
S]!W\a break;
jn(!6\n" }
$cJ fdE }
YaC[S^p return bAdded;
<DR!AR) }
vxC];nCC# 4Otq3s34FT BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
GQhy4ji'z {
^dhx/e%s BOOL bRemoved=FALSE;
tvFe_*Ck for(int index=0;index<MAX_KEY;index++){
MMpId
Uhr if(hCallWnd[index]==hWnd){
'7oCWHq[ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
ITqAy1m@C hCallWnd[index]=NULL;
6_u!{ HotKey[index]=0;
Y*\h?p[, HotKeyMask[index]=0;
8IxIW0 bRemoved=TRUE;
~xsJML KeyCount--;
"JLE break;
<Lxp t }
w{xa@Q]t- }
oe|;>0yf }
4uMMf return bRemoved;
$':5uU1} }
T|D^kL%m! jN*wbqL void VerifyWindow()
{J,"iJKop {
%cUC~, g_( for(int i=0;i<MAX_KEY;i++){
jnztCNaX if(hCallWnd
!=NULL){ 4:a ~Wlp[
if(!IsWindow(hCallWnd)){ n;kWAYgg
hCallWnd=NULL; 5Ww,vSCV)
HotKey=0; M/9[P*
VE
HotKeyMask=0; \<T7EV.
KeyCount--; H?Q--pG8
} \7*|u
} UF-'(
} ]a&riPh"
} zx2`0%Q
'/6f2[%Y"
BOOL CHookApp::InitInstance() &I8DK).M+
{ Wex2Fd?DO
AFX_MANAGE_STATE(AfxGetStaticModuleState()); ED79a:
hins=AfxGetInstanceHandle(); 4^:dmeMZ`
InitHotkey(); -.MJ3
return CWinApp::InitInstance(); oi,KA
} 1hi,&h
/}6y\3h
int CHookApp::ExitInstance() ^AJ
2Y_}v
{ V?"U)Y@Y
VerifyWindow(); x"RF[d
UnInit(); F
{L#
return CWinApp::ExitInstance(); hFr+K1
} iV?8'^
YzM/?enK}T
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file :{Z%dD
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) "j?x gV
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ !> +Lre@
#if _MSC_VER > 1000 %5KK#w "
#pragma once v@yqTZ
#endif // _MSC_VER > 1000 _RxnB?
fS|e{!iI"
class CCaptureDlg : public CDialog dJnKa]X
{ ^%Cd@!dk
// Construction P, l
(4
public: Vh?vD:|
BOOL bTray; |zP~/
BOOL bRegistered; \#w8~+`Gq
BOOL RegisterHotkey(); c7@/<*E+
UCHAR cKey; kv2o.q
UCHAR cMask; {fl[BX]kZ
void DeleteIcon(); LK*9`dzv=G
void AddIcon(); `fX\pOk~e
UINT nCount; y_q1Y70i2r
void SaveBmp(); 2W_[|.;'
CCaptureDlg(CWnd* pParent = NULL); // standard constructor BCz4
s{F
// Dialog Data er1XZ
//{{AFX_DATA(CCaptureDlg) -UzWLVB^
enum { IDD = IDD_CAPTURE_DIALOG }; L[*cbjt[
CComboBox m_Key; L&:A59)1k
BOOL m_bControl; Vraz}JV
BOOL m_bAlt; nFG X2|d
BOOL m_bShift; ^/%Y]d$
CString m_Path; W|rAn2H
CString m_Number; *dBmb
//}}AFX_DATA w%)RX<h dI
// ClassWizard generated virtual function overrides PyHL`PZZ
//{{AFX_VIRTUAL(CCaptureDlg) V/"RCqY4
public: /c-k{5mH%
virtual BOOL PreTranslateMessage(MSG* pMsg); L?0IUGY
protected: +`Nu0y!rj
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support <[}zw!z
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); #<m2Xo?d]
//}}AFX_VIRTUAL %'e$N9zd
// Implementation 2|RoN)%
protected: F^!O\8PFd
HICON m_hIcon; l?J[K
// Generated message map functions g +gcH
//{{AFX_MSG(CCaptureDlg) OiZ-y7;k^
virtual BOOL OnInitDialog(); '@#(jY0_
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); ~-lUS0duh
afx_msg void OnPaint(); )c9Xp:
afx_msg HCURSOR OnQueryDragIcon(); uBg#zx
virtual void OnCancel(); W
wj+\
afx_msg void OnAbout(); lnjs{`^
afx_msg void OnBrowse(); "10\y{`v^
afx_msg void OnChange(); V62lN<M
//}}AFX_MSG (]I=';\
DECLARE_MESSAGE_MAP() s Iaehe'B
}; >Sk%78={R
#endif d`$w3Hy
+cmi?~KS*
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file }.9a!/@Aj
#include "stdafx.h" \vV]fX
#include "Capture.h" u6l)s0Q
#include "CaptureDlg.h" $[MAm)c:]{
#include <windowsx.h> MwSfuP
#pragma comment(lib,"hook.lib") 0~WXA=XG
#ifdef _DEBUG Bv3B|D&+
#define new DEBUG_NEW '4u/ g
#undef THIS_FILE &X`
lh P
static char THIS_FILE[] = __FILE__; tK *y/S
#endif Rb:?%\=
#define IDM_SHELL WM_USER+1 knV*,
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); oVbs^sbRH
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); A(`Mwh+
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; |+sAqx1IF
class CAboutDlg : public CDialog ax;<idC}
{ T5T[$%]6
public: T<Zi67QC@
CAboutDlg(); 5i'?oXL
// Dialog Data L5KcI
//{{AFX_DATA(CAboutDlg) 0
.T5%
_/
enum { IDD = IDD_ABOUTBOX }; 9X33{
//}}AFX_DATA Tl-%;X<X
// ClassWizard generated virtual function overrides ?g@X+!RB
//{{AFX_VIRTUAL(CAboutDlg) =<aFkBX-
protected: bvhV
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support !e
|Bi{
//}}AFX_VIRTUAL |<oqT+?i
// Implementation UM21Cfqex
protected: 3syA$0TZt
//{{AFX_MSG(CAboutDlg) 7)RvBcM
//}}AFX_MSG OuWRLcJ!
DECLARE_MESSAGE_MAP() "66#F
}; J[S!<\_!
r#w 7qEtD
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) Z]k@pR !
{ 4JO16
//{{AFX_DATA_INIT(CAboutDlg) KE5>O1
//}}AFX_DATA_INIT xc`O\z_)
} +s`cXTlFrk
T4ugG?B*
void CAboutDlg::DoDataExchange(CDataExchange* pDX) c3PA<q[
{ <)sL8G9Y
CDialog::DoDataExchange(pDX); *(]ZdB_2
//{{AFX_DATA_MAP(CAboutDlg) `}$bJCSF.n
//}}AFX_DATA_MAP oGg<s3;UND
} ]EDCs?,
L
9cXgd
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) mC0Dj O
//{{AFX_MSG_MAP(CAboutDlg) i=P}i8,^=
// No message handlers TMsCl6dB
//}}AFX_MSG_MAP tBl(E
END_MESSAGE_MAP() f;,*P,K
l)jP!k
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) #a
tL2(wJ
: CDialog(CCaptureDlg::IDD, pParent) )_o^d>$da
{ ? `kZ 6$
//{{AFX_DATA_INIT(CCaptureDlg) ;}ThBb3
m_bControl = FALSE; z" ?WT$
m_bAlt = FALSE; ]EQ*!
m_bShift = FALSE; p-DHTX
m_Path = _T("c:\\"); ICe;p
V
m_Number = _T("0 picture captured.");
\ Gi oSg
nCount=0; U^)`_\/;?
bRegistered=FALSE; 10m|?
bTray=FALSE; 2 1+[9
//}}AFX_DATA_INIT h>!9N
dzG
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 UYW'pV
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); e$`hRZ%
} WW^+X~Y
r/P}j4)b7
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) `@0AGSzUv
{ }&6:0l$4!
CDialog::DoDataExchange(pDX); hK{<&T
//{{AFX_DATA_MAP(CCaptureDlg) fuF{8-ua
DDX_Control(pDX, IDC_KEY, m_Key); (#z6w#CU(
DDX_Check(pDX, IDC_CONTROL, m_bControl); QX=x^(M$m
DDX_Check(pDX, IDC_ALT, m_bAlt); yO7#n0q
DDX_Check(pDX, IDC_SHIFT, m_bShift); :c8d([)$
DDX_Text(pDX, IDC_PATH, m_Path); a=9QwEZ
DDX_Text(pDX, IDC_NUMBER, m_Number); ,]n~j-X
//}}AFX_DATA_MAP 0&2`)W?9
} p_EM/jI,
A
McZm0c`
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) a <F2]H=J
//{{AFX_MSG_MAP(CCaptureDlg) 0B}2~}#
ON_WM_SYSCOMMAND() 0O]v|
ON_WM_PAINT() ;, \!&o6
ON_WM_QUERYDRAGICON() "oF)u1_?
ON_BN_CLICKED(ID_ABOUT, OnAbout) =1
S%E
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) Wa&!1'
@
ON_BN_CLICKED(ID_CHANGE, OnChange) ub`zS-vb
//}}AFX_MSG_MAP Jm< uE]9
END_MESSAGE_MAP() jPZpJ:
aS\$@41"
BOOL CCaptureDlg::OnInitDialog() tB(~:"|8
{ puMbB9)
CDialog::OnInitDialog(); )DlKeiK
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
fWi/mK3c
ASSERT(IDM_ABOUTBOX < 0xF000); N&Ho$,2s
CMenu* pSysMenu = GetSystemMenu(FALSE); )t\aB_ =
if (pSysMenu != NULL) K"X"2c1o
{ M,bs`amz
CString strAboutMenu; vEGI
strAboutMenu.LoadString(IDS_ABOUTBOX); =]"I0G-s!
if (!strAboutMenu.IsEmpty()) [9NrPm3d
{ 0?gHRdU"
pSysMenu->AppendMenu(MF_SEPARATOR); L2~'Z'q
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); T"gk^.
} a1_ o
} 6Q_A-X3hk
SetIcon(m_hIcon, TRUE); // Set big icon ev_' .t'
SetIcon(m_hIcon, FALSE); // Set small icon Q[|*P ] w
m_Key.SetCurSel(0); &CN(PZv
RegisterHotkey(); @_#\qGY
CMenu* pMenu=GetSystemMenu(FALSE); -R\dg S3
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); YV@efPy}n
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); B##X94aTT
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); Z;RUxe|<k
return TRUE; // return TRUE unless you set the focus to a control VRD^> Gi
} MHye!T6fO\
2\gIjXX"
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) ?N!kYTR%}
{ ~#}T|
if ((nID & 0xFFF0) == IDM_ABOUTBOX) b`=g#B|
{ 6qT-
CAboutDlg dlgAbout; rK:cUW0]X
dlgAbout.DoModal(); y=EVpd
} d~{$,"!-f
else 1)zXv
{ Q {BA`Q@V
CDialog::OnSysCommand(nID, lParam);
j|!t3}((
} 0'YP9-C3
} g]`YI5
wEJzLFCn
void CCaptureDlg::OnPaint() v=cQ`nou
{ 3T4HX|rC
if (IsIconic()) n&?)gKL0g
{ Dh?I
CPaintDC dc(this); // device context for painting Z,Us<du
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); WjM7s]ZRv
// Center icon in client rectangle (+/d*4
int cxIcon = GetSystemMetrics(SM_CXICON); NuD|%Ebs
int cyIcon = GetSystemMetrics(SM_CYICON); MxKTKBxQ
CRect rect; $&KkZ
GetClientRect(&rect); |d*a~T0
int x = (rect.Width() - cxIcon + 1) / 2; lmD[Cn
int y = (rect.Height() - cyIcon + 1) / 2; n9`]}bnX
// Draw the icon G43r85LO
dc.DrawIcon(x, y, m_hIcon); ;DR5?N/a
} af9KtX+
else JEMc _ngR!
{ )c'E9ZuZ>d
CDialog::OnPaint(); m]8*k=v
} W\;|mEEu
} ACZK]~Y'N*
VY+P c/b
HCURSOR CCaptureDlg::OnQueryDragIcon() yO!M$aOn/
{ nbf/WOCk
return (HCURSOR) m_hIcon; ]t`SCsoo
} gTU5r4xm~
;B[(~LCyT
void CCaptureDlg::OnCancel() rKyulgP
{ c<MF:|(}
if(bTray) =+ >>l0=_v
DeleteIcon(); @h!Z0}dX(
CDialog::OnCancel(); , c{ckm
} K5BL4N
#d-zH:uq
void CCaptureDlg::OnAbout() eNVuw: Q+
{ u'>94Gm}
CAboutDlg dlg; 1# z@D(
dlg.DoModal(); ~!8j,Bqs+z
} QKlsBq
f86Z #%
void CCaptureDlg::OnBrowse() >][D"
{ +{V`{'
CString str; v~x4Y,m%
BROWSEINFO bi; OHsA]7S
char name[MAX_PATH]; #RaqNu
ZeroMemory(&bi,sizeof(BROWSEINFO)); $/;K<*O$
bi.hwndOwner=GetSafeHwnd(); WulyMcJ
bi.pszDisplayName=name; QeuM',6R
bi.lpszTitle="Select folder"; NlKVl~_ C
bi.ulFlags=BIF_RETURNONLYFSDIRS; gD4vV'|
LPITEMIDLIST idl=SHBrowseForFolder(&bi); cy;i1#1rO
if(idl==NULL) s8>y&b.
return; $D !/v)3
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); 2b^Fz0
w4
str.ReleaseBuffer(); rqqd} kA
m_Path=str; &0-oi Y
if(str.GetAt(str.GetLength()-1)!='\\') iRlZWgj4^
m_Path+="\\"; ~"SQwE|
UpdateData(FALSE); 09jE7g @X}
} Y<irNp9
p^RX<L/\=_
void CCaptureDlg::SaveBmp() !|H,g wqU
{ =&$z
Nc4h
CDC dc; Abt<23$h
dc.CreateDC("DISPLAY",NULL,NULL,NULL); gK({InOP
CBitmap bm; KU9FHN
int Width=GetSystemMetrics(SM_CXSCREEN); }YFM40H
int Height=GetSystemMetrics(SM_CYSCREEN); Mh5>
hD
bm.CreateCompatibleBitmap(&dc,Width,Height); Q[rZ1z
CDC tdc; UF#!6"C@
tdc.CreateCompatibleDC(&dc); ID,_0b
CBitmap*pOld=tdc.SelectObject(&bm); XC^*z[#4{
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY);
;(Ug]U%3_
tdc.SelectObject(pOld); L8Tm8)
BITMAP btm; BOG.[?yx
bm.GetBitmap(&btm); _avf%OS
DWORD size=btm.bmWidthBytes*btm.bmHeight; |.0~'
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); _OuNX.yrG
BITMAPINFOHEADER bih; M.- {->
bih.biBitCount=btm.bmBitsPixel; ?dCwo;~
bih.biClrImportant=0; bHv"!
bih.biClrUsed=0; ?{B5gaU9F
bih.biCompression=0; p8%qU>~+4
bih.biHeight=btm.bmHeight; n-" (~
bih.biPlanes=1; ka\{?:r,8
bih.biSize=sizeof(BITMAPINFOHEADER); <%S)6cw(3
bih.biSizeImage=size; 3J
&Ros
bih.biWidth=btm.bmWidth; dVEs^ZtI
bih.biXPelsPerMeter=0; eDZ8F^0
bih.biYPelsPerMeter=0; \?T9v
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); zHX\h[0f
static int filecount=0; .G!xcQ`?
CString name; 6Uk+a=Ar
name.Format("pict%04d.bmp",filecount++); 7`;sX?R
name=m_Path+name; W
wPzm?30
BITMAPFILEHEADER bfh; K8X7IE
bfh.bfReserved1=bfh.bfReserved2=0; f/#Id]B
bfh.bfType=((WORD)('M'<< 8)|'B'); 'A7!@hVy
bfh.bfSize=54+size; 8lYA6A
bfh.bfOffBits=54; wPjq
B{!Q
CFile bf; ZxwrlaA
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ %N<5ST>(
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); `M6"=)twu
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); >aO.a[AM
bf.WriteHuge(lpData,size);
c2M
bf.Close(); {&IB[Y6
nCount++; #[{{&sN
} EpMxq7*
GlobalFreePtr(lpData); >U{iof<
if(nCount==1) ',0:/jSz
m_Number.Format("%d picture captured.",nCount); m.Zy$SDj(
else y2#>a8SRS
m_Number.Format("%d pictures captured.",nCount); nJN-U+)u
UpdateData(FALSE); M
x#L|w`r
} ]wU/yc)e
6Lq`zU^
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) )/;+aDk
{ _)
x{TnK
if(pMsg -> message == WM_KEYDOWN) :&vX0
Ce:
{ W4^zKnH
if(pMsg -> wParam == VK_ESCAPE) [:cD
return TRUE; ;kk[x8$
if(pMsg -> wParam == VK_RETURN) & mO n]
return TRUE; rAu%bF
} -!1=S: S
return CDialog::PreTranslateMessage(pMsg); uNyN[U
} 5cIZ_#
EyA
ny\"
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) :kR>wX
{ c#{lXS^
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ =6Ok4Z
SaveBmp(); H}F
UgA;
return FALSE; \+R %KA/F
} :$b` n
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ *zrGrk:l
CMenu pop; X+XDfEt:Q
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); -K=.A*}
CMenu*pMenu=pop.GetSubMenu(0); \DQu!l@1U
pMenu->SetDefaultItem(ID_EXITICON); <
bC'.m
CPoint pt; .Q!d[vL
GetCursorPos(&pt); 0>BxS9?w
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); y2_rm
if(id==ID_EXITICON) @^UgdD,BS,
DeleteIcon(); ;^xM"
{G8
else if(id==ID_EXIT) $C7a#?YF,
OnCancel(); +Pl)E5W!=`
return FALSE; :6nD "5(
} qhGz2<}_j
LRESULT res= CDialog::WindowProc(message, wParam, lParam); _HHvL=
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) O3o^%0
AddIcon();
Xs052c|s
return res; kJ5z['4?
} (`dz37@*
p6<JpW5@_
void CCaptureDlg::AddIcon() (NLw#)?
{ D;0>-
NOTIFYICONDATA data; tVAo o-%
data.cbSize=sizeof(NOTIFYICONDATA); &<e18L7a
CString tip; L8h3kT
tip.LoadString(IDS_ICONTIP); uMw6b=/U
data.hIcon=GetIcon(0); Q&]|W
Xv
data.hWnd=GetSafeHwnd(); [WR"#y
strcpy(data.szTip,tip); toPbFU'
data.uCallbackMessage=IDM_SHELL; k5Cy/gR
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; D5c
8sB
data.uID=98; u @Ze@N%
Shell_NotifyIcon(NIM_ADD,&data); S=r0tao,!v
ShowWindow(SW_HIDE); $VHIU1JjZ
bTray=TRUE; -orRmn6}
} %@vF%
2X\Pw
void CCaptureDlg::DeleteIcon() -H6[{WVW!
{ m~
ah!QM
NOTIFYICONDATA data; bHG<B
data.cbSize=sizeof(NOTIFYICONDATA); v-z%3x.f
data.hWnd=GetSafeHwnd(); Ih:Q}V#6
data.uID=98; wH o}wp
Shell_NotifyIcon(NIM_DELETE,&data); 1;( h0j
ShowWindow(SW_SHOW); JW[6
^Rw
SetForegroundWindow(); D-BT`@~l
ShowWindow(SW_SHOWNORMAL); RdPk1?}K
bTray=FALSE; i4|R0>b
} \lQ3j8U
dB_0B.
void CCaptureDlg::OnChange() J]TqH`MA
{ _l7_!Il_
RegisterHotkey(); `Jc/ o=]
} ?2&= +QaT
dHIk3j-!
BOOL CCaptureDlg::RegisterHotkey() Q)0KYKD+@
{ Qz[^J
UpdateData(); /Ot3[B
UCHAR mask=0; @G2# Z
UCHAR key=0; G*N[t w
if(m_bControl) (-WRZLOQ
mask|=4; t\ oud{Cv
if(m_bAlt) I%J>~=]n_
mask|=2; z+yq%O
if(m_bShift) kZG .Id
mask|=1; ?) y}HF
key=Key_Table[m_Key.GetCurSel()]; v`,!wS
if(bRegistered){ v]( Y n)#
DeleteHotkey(GetSafeHwnd(),cKey,cMask); eI$V2
bRegistered=FALSE; <9,h!
} MG vz-E1e
cMask=mask; s9+):,dKP
cKey=key; ^ 4<