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:
LYhgBG,
CkE@Ll3Z 一、实现方法
qAUqlSP5 \K.i8f, 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:
IHZ WNT2 'S@% #pragma data_seg("shareddata")
G(~d1%( HHOOK hHook =NULL; //钩子句柄
M=HW2xn UINT nHookCount =0; //挂接的程序数目
" ^u static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
LY'_U0y4 static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
?7 e|gpQ| static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
yH#zyO4fD- static int KeyCount =0;
*v)JX _ static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
}@J&yrqg #pragma data_seg()
Q.7Rv
XNw8 Tw/kD)u{ 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。
FY)v rM*yh w|pk1~c(_ 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:
PX65Z|~>_ .;ml[DXH BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
0APwk
} cKey,UCHAR cMask)
L MC-1 {
Dq/[g,( BOOL bAdded=FALSE;
zNofI$U for(int index=0;index<MAX_KEY;index++){
3Bee6N> if(hCallWnd[index]==0){
&F1h3q)L hCallWnd[index]=hWnd;
8W)3rD> HotKey[index]=cKey;
}00mJ]H( HotKeyMask[index]=cMask;
7Te`#" bAdded=TRUE;
C(Ujx=G+3 KeyCount++;
"(PJh\S>S break;
W?mn8Y;{` }
gRIRc4p }
IzF7W?k return bAdded;
!/znovoD }
6e&Y%O'8 //删除热键
]`0(^)U& BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
WY_}D!O {
XeX0\L')R BOOL bRemoved=FALSE;
x tg3~/H for(int index=0;index<MAX_KEY;index++){
>gM|:FG if(hCallWnd[index]==hWnd){
V|zzj[c if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
I gcVl/d hCallWnd[index]=NULL;
IE.JIi^w HotKey[index]=0;
b)9bYkd HotKeyMask[index]=0;
wUHuykF bRemoved=TRUE;
Z+`mla KeyCount--;
S!A)kK+ break;
Zy,U'Dv }
A\ds0dUE }
!;.i#c_u }
} R!-*Wk return bRemoved;
o[q
Kf }
#qWa[kB /s.sW l ?1?D[7$ DLL中的钩子函数如下:
y;<^[ XmXp0b7 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
,u^i0uOg {
zD}dvI} BOOL bProcessed=FALSE;
"P\k_-a' if(HC_ACTION==nCode)
Y,I0o{,g {
Q<B=m6~ if((lParam&0xc0000000)==0xc0000000){// 有键松开
P$S>=*`n
U switch(wParam)
6f,#O8]#5 {
[_*% case VK_MENU:
YqX/7b+ MaskBits&=~ALTBIT;
VFz(U)._ break;
2#~5[PtP^ case VK_CONTROL:
z #c)Q MaskBits&=~CTRLBIT;
3ddH@Y| break;
KywDp 37^ case VK_SHIFT:
= q9>~E{} MaskBits&=~SHIFTBIT;
jv<BGr=4; break;
"gjy+eosY default: //judge the key and send message
cJj4qXF break;
5jD2%"YUV }
'
Z:FGSwT for(int index=0;index<MAX_KEY;index++){
fQRGz\r*k if(hCallWnd[index]==NULL)
XSC._)ztEE continue;
o#gb+[ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
'qwFVP {
>M[wh> SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
Ql&5fyW bProcessed=TRUE;
GqBZWmAB }
Z12-Vps }
fiqeXE?E }
.vYU4g] else if((lParam&0xc000ffff)==1){ //有键按下
?RJ
)u switch(wParam)
L^uO.eI"m {
CM?dB$AwX case VK_MENU:
>Pj ?IE6 MaskBits|=ALTBIT;
<gRv7 ?V[z break;
Fl<|/DCg case VK_CONTROL:
S"0<`{Gv MaskBits|=CTRLBIT;
=u
W+>;] break;
'AU(WHf case VK_SHIFT:
\)'s6>58| MaskBits|=SHIFTBIT;
h'YC!hjp break;
Wcd;B7OH default: //judge the key and send message
d?^bCf+< break;
2Sbo7e }
C"no>A^ for(int index=0;index<MAX_KEY;index++){
oG~a`9N%C if(hCallWnd[index]==NULL)
swV/Mi> continue;
6=A if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
KR4X&d6 {
xR
`4< SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
hvCX,^LoJ bProcessed=TRUE;
}@%A@A{R }
c+$alwL~ }
It>8XKS }
Hh`x>{,|S if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
U;f~ Q6iu for(int index=0;index<MAX_KEY;index++){
:E'uV"j% if(hCallWnd[index]==NULL)
l2Z!;Wm( continue;
^x(BZolkm if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
!\w@b`Iv8 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
e@N@8i"q5 //lParam的意义可看MSDN中WM_KEYDOWN部分
OhMnG@@ }
CUIT)mF: }
<nDuN*| }
N T+%u- return CallNextHookEx( hHook, nCode, wParam, lParam );
{"hX_t }
bso l>M[< gI<e=|J6w 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
"cSH[/
%GS^=Qr BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
{jB& e, BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
Mg3>/! =_~bSEqyRI 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
p2T<nP<Pt %6Wv-:LY LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
AmYqrmJ {
rC
)pCC if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
O#Y;s;)i" {
u.W}{-+kp //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
W~(4t:hp SaveBmp();
e(nT2E return FALSE;
BPRhGG|9j }
;Z:zL^rvn …… //其它处理及默认处理
3i1e1Lj1 }
]6JI(( K(bid0Y es]S]}JV 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
i$`OOV=/e 2^Y@e=^A 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。
=e\E{K'f@ =)tU]kp 二、编程步骤
3O % u? \X&LrneR"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";
jm~(OLg [fVtQ@-S! 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
)X-~+X91S X{2))t%
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;
_g{*;?mS 4-ijuqjN 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;
m]}%Ag^x C|"BMam 5、 添加代码,编译运行程序。
%A 4F?/E #$/SM_X14C 三、程序代码
m3o+iYkMD /m#!<t7 ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
.4I"[$?Q #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
#fT1\1[] #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
8&d s #if _MSC_VER > 1000
BEU^,r3z #pragma once
>b^|SL #endif // _MSC_VER > 1000
sT&O %( #ifndef __AFXWIN_H__
~n)gP9Hv #error include 'stdafx.h' before including this file for PCH
VE_% /Fs, #endif
UD.&p'^ /{ #include "resource.h" // main symbols
sf""]c$ class CHookApp : public CWinApp
!\e&7sV~Q {
bBwMx{iNNz public:
{~cG'S Y% CHookApp();
p~X=<JM // Overrides
(WoKrd.! // ClassWizard generated virtual function overrides
;;6e
t/8 //{{AFX_VIRTUAL(CHookApp)
e-@=QI^, public:
Ojea~Y]Sr virtual BOOL InitInstance();
Kterp%J? virtual int ExitInstance();
>J!J: //}}AFX_VIRTUAL
iEe<+Eyns //{{AFX_MSG(CHookApp)
|ji={ // NOTE - the ClassWizard will add and remove member functions here.
FPg5!O% // DO NOT EDIT what you see in these blocks of generated code !
N\Nw mx //}}AFX_MSG
]J`yh$a DECLARE_MESSAGE_MAP()
52RFB!Z[ };
CuS"Wj LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
g)o?nAr BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
,2*^G;J1 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
y7&8P8R BOOL InitHotkey();
&DUt`Dr w BOOL UnInit();
.JkcCEe{G #endif
7&I+mw/X I $5*Puy# //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
\1 ^qfw #include "stdafx.h"
r$=YhI/= #include "hook.h"
Y(:.f-Du #include <windowsx.h>
Muhq,>!U #ifdef _DEBUG
gy%/zbZx #define new DEBUG_NEW
VW,"
dmC #undef THIS_FILE
L%3m_'6QP static char THIS_FILE[] = __FILE__;
\&|zD"* #endif
9!aQ@ J^ #define MAX_KEY 100
h[Hn*g #define CTRLBIT 0x04
Dg:2*m_!j{ #define ALTBIT 0x02
QvPG
6A]T #define SHIFTBIT 0x01
;,z[|"y #pragma data_seg("shareddata")
tks3xS HHOOK hHook =NULL;
#<^ngoOj UINT nHookCount =0;
YLEk
M
static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
i/Nd static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
6f$h1$$)^ static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
h` 1{tu static int KeyCount =0;
^CZ)!3qd1 static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
{nl]F #pragma data_seg()
yUZ;keQ_Tw HINSTANCE hins;
d|nJp-%V void VerifyWindow();
7<'4WHi;@s BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
.:<-E% //{{AFX_MSG_MAP(CHookApp)
z /
YF7wrx // NOTE - the ClassWizard will add and remove mapping macros here.
9}\{0;9 // DO NOT EDIT what you see in these blocks of generated code!
(3H'!P7|~ //}}AFX_MSG_MAP
xj1FCT2 END_MESSAGE_MAP()
3I rmDT RsY7F; CHookApp::CHookApp()
~Sr`Tlp {
( k@%04c // TODO: add construction code here,
s'4S, // Place all significant initialization in InitInstance
;M<jQntqS{ }
dHE\+{K%- @M:Uf7 CHookApp theApp;
` 0YI?$G1 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
"zT#*>U {
LLa72HW BOOL bProcessed=FALSE;
0K0[mC}ZwM if(HC_ACTION==nCode)
U\_-GS;1 {
|_=o0lf if((lParam&0xc0000000)==0xc0000000){// Key up
>
xc7Hr~ switch(wParam)
-Qt>yzD3 {
F]#rH case VK_MENU:
b
r"47i MaskBits&=~ALTBIT;
UR/lM,N; break;
Anpx%NVo case VK_CONTROL:
:d&^//9 MaskBits&=~CTRLBIT;
3#d5.Ut break;
-I#]#i@gX case VK_SHIFT:
? qn0]. MaskBits&=~SHIFTBIT;
gtcU'4~ break;
SiD [54OM default: //judge the key and send message
mOLP77(o break;
}RGp)OFY& }
8x`?Yc for(int index=0;index<MAX_KEY;index++){
2>E.Q@c if(hCallWnd[index]==NULL)
;8Z\bHQ> continue;
\2F$FRWo if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
6[-N}) {
s|Hrb_[;l SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
\'rh7!v-u bProcessed=TRUE;
(s/hK }
kc0YWW Q-: }
SnMHk3(\ }
$1Lm=2;U else if((lParam&0xc000ffff)==1){ //Key down
i7qG5U switch(wParam)
0?D`|x_ {
4t(V)1+ case VK_MENU:
m=Z1DJG MaskBits|=ALTBIT;
}CR@XD}[ break;
N2!HkUy2 case VK_CONTROL:
XO*|P\#^ MaskBits|=CTRLBIT;
w8|38m break;
7=YjY)6r^ case VK_SHIFT:
W9!EjXg MaskBits|=SHIFTBIT;
BE54^U break;
sqAZjfy@ default: //judge the key and send message
yu3T5@Ww break;
^ Vl{IsY }
{8NnRnzU for(int index=0;index<MAX_KEY;index++)
DE GEr- {
,S|v>i,@ if(hCallWnd[index]==NULL)
|Rh%wJ continue;
*vx!twu1o if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
we<m%pf {
ZH9sf ~7 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
Q:.q*I!D<4 bProcessed=TRUE;
(lDbArqy }
n[jyhBf\W }
VA9"
Au }
k<mfBNvuo if(!bProcessed){
N# Ru`; for(int index=0;index<MAX_KEY;index++){
80X #V if(hCallWnd[index]==NULL)
k79"xyXX continue;
Kh)SgJ3B@ if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
<NV[8B#k] SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
P4{8pO]B }
l]BIFZ~ }
]!yuD/4A }
`"N56 return CallNextHookEx( hHook, nCode, wParam, lParam );
3JB?G>\! }
D^(Nijl9U W'Wr8~{h BOOL InitHotkey()
5*.JXxE;U {
JLS|G?#0 if(hHook!=NULL){
gr\UI!]F nHookCount++;
.OLm{ return TRUE;
kaSy 9Y{ }
&E0d{2 else
PZVh)6f"c hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
w1Z9@*C! if(hHook!=NULL)
OT6uAm+\7_ nHookCount++;
k"*A@ return (hHook!=NULL);
#G[S }
J2X;=X5 BOOL UnInit()
LKCj@N dV {
6,nws5dh if(nHookCount>1){
{rQSB;3 nHookCount--;
]>E)0<t return TRUE;
D0 'L }
t5r,3x!E BOOL unhooked = UnhookWindowsHookEx(hHook);
#0K122oY if(unhooked==TRUE){
oyQp"'|N nHookCount=0;
Pr
|u_^ hHook=NULL;
W\JbX<mQ }
]a4rA+NFLB return unhooked;
89*txYmx }
RAw/Q$I idWYpU>gC BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
ZT*RD2, {
+Y7"!wYR> BOOL bAdded=FALSE;
#S?xRqkc for(int index=0;index<MAX_KEY;index++){
('H[[YODh if(hCallWnd[index]==0){
~j%g?;#* hCallWnd[index]=hWnd;
gq[|>Rs75 HotKey[index]=cKey;
,e6n3]W8 HotKeyMask[index]=cMask;
,+0#.Ns$ bAdded=TRUE;
f+#^Lngo KeyCount++;
{Kn:>l$*7 break;
xign!= }
B@P +b*% }
?`wO
\>y return bAdded;
X,m6#vLK2 }
LxWnPi ^ $a^YJY^_ BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
xcBV,[E{ {
c&!EsMsU BOOL bRemoved=FALSE;
W4
v/,g> for(int index=0;index<MAX_KEY;index++){
p.(8e kh if(hCallWnd[index]==hWnd){
)f#raXa5+ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
blbL49; hCallWnd[index]=NULL;
o :`>r/SlL HotKey[index]=0;
XH9Y|FX%# HotKeyMask[index]=0;
`a$-"tW~j bRemoved=TRUE;
drr
W?U KeyCount--;
JQ-O=8] break;
s&T"/4 }
.UxbwTup }
>LvQ&fAo }
(o+(YV^ return bRemoved;
Q-scL>IkCb }
$
{Y?jJ &NvvaqJ void VerifyWindow()
iUNlNl ? {
<1r#hFUUL for(int i=0;i<MAX_KEY;i++){
_!vxX] if(hCallWnd
!=NULL){ f{s}[p~
if(!IsWindow(hCallWnd)){ * z,] mi%
hCallWnd=NULL; rA<>k/a
HotKey=0; '@~\(SH
HotKeyMask=0; @|3PV
KeyCount--; p6UPP|-S
} u"WqI[IV
} QqpXUyHp[
} I_QWdxn
} kU*Fif
h'Gs$o7#P
BOOL CHookApp::InitInstance() >!o||Yn
{ CN7
2 E
AFX_MANAGE_STATE(AfxGetStaticModuleState()); KwEyMR!
hins=AfxGetInstanceHandle(); ~353x%e'
InitHotkey(); adi^*7Q] )
return CWinApp::InitInstance(); R^[b
I;
}
Zo=w8Hr
y `)oD0)Fj
int CHookApp::ExitInstance() W3AtO
{ h-0#h/u>M
VerifyWindow(); 6p=OM=R
UnInit(); e}F1ZJz
return CWinApp::ExitInstance(); OrN~ Y#D
} `$kKTc:f
@51!vQwqR
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file #Cj$;q{!
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) P4h^_*d
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ [I
XX#^F
#if _MSC_VER > 1000 K<BS%~,I
#pragma once orT%lHwjL
#endif // _MSC_VER > 1000 wD*z >v$
!(%^Tg=
class CCaptureDlg : public CDialog nnw5
!q_
{ U};~ff+
// Construction "Uk "
public: )/32sz]~
BOOL bTray; dfU z{
BOOL bRegistered; *hm;C+<~
BOOL RegisterHotkey(); .>/Tc
UCHAR cKey; aPELAU-
UCHAR cMask; ceKR?%8 s
void DeleteIcon(); APne!
void AddIcon(); D@-'<0=
UINT nCount; ~8rVf+bg3
void SaveBmp(); VG)Y$S8.>
CCaptureDlg(CWnd* pParent = NULL); // standard constructor 8w 2$H
// Dialog Data 3#d?
//{{AFX_DATA(CCaptureDlg) '[T#d! T
enum { IDD = IDD_CAPTURE_DIALOG }; JDa=+\_
CComboBox m_Key; +{eZ@
BOOL m_bControl; 4`KQ@m
BOOL m_bAlt; ">-mZ'$#L
BOOL m_bShift; :)djHPP*
CString m_Path; kdr?I9kwW
CString m_Number;
!623;
//}}AFX_DATA hny(:Dj
// ClassWizard generated virtual function overrides @i" ^b
//{{AFX_VIRTUAL(CCaptureDlg) t;>"V.F<1
public: k+D32]b@
virtual BOOL PreTranslateMessage(MSG* pMsg); "s?!1v(v
protected: lZ\Si
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support *8WcRx
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); >TnV
Lx<
//}}AFX_VIRTUAL sKIpL(_I$
// Implementation 7KB:wsz^
protected: UNoNsmP
HICON m_hIcon; #3+-vyZm
// Generated message map functions z?b[ 6DLV;
//{{AFX_MSG(CCaptureDlg) &efwfnG<
virtual BOOL OnInitDialog(); J2vaKl
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); ]j^V5y"
afx_msg void OnPaint(); 2c%*u {=:
afx_msg HCURSOR OnQueryDragIcon(); .q!U@}k.
virtual void OnCancel(); AV t(e6H
afx_msg void OnAbout(); WNE=|z#|
afx_msg void OnBrowse(); |Z"5zL10
afx_msg void OnChange(); r@|{m QOxa
//}}AFX_MSG CO)BF%?B
DECLARE_MESSAGE_MAP() .lcI"%>
}; bOY<C%;C
#endif sz7|2OV"
T({]fc!c
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file 2O*(F>>dT
#include "stdafx.h" .b3cn
#include "Capture.h" v ?9
#include "CaptureDlg.h" e>FK5rz
#include <windowsx.h> UNc[h&@_
#pragma comment(lib,"hook.lib") Sz"rp9x+
#ifdef _DEBUG f0<'IgN
#define new DEBUG_NEW x|TLMu=3=
#undef THIS_FILE zG[GyyAQ
static char THIS_FILE[] = __FILE__; vv9=g*"j
#endif qYwEPGa\
#define IDM_SHELL WM_USER+1 O<:"Irq\qr
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); [|:kS
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); GD]yP..
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; C}7c:4c
class CAboutDlg : public CDialog !8z,}HUdK
{ V~9s+>
public: BB>R=kt
CAboutDlg(); !_ng_,J
// Dialog Data Y NRorE
//{{AFX_DATA(CAboutDlg) LKEf#mp
enum { IDD = IDD_ABOUTBOX }; m\XgvpvrP
//}}AFX_DATA ['G@`e*\
// ClassWizard generated virtual function overrides hxedQvW
//{{AFX_VIRTUAL(CAboutDlg) a$7}41F[~s
protected: KA"D2j9wn
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support ,g"[7Za
//}}AFX_VIRTUAL &:}{?vU
// Implementation &B;M.sz~C4
protected: *k (|r>
//{{AFX_MSG(CAboutDlg) ,[Bv\4Ah
//}}AFX_MSG Bq20U:f
DECLARE_MESSAGE_MAP() A-8[8J
}; p>O>^R
| M|5Nc>W
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) AJ:(NV1=
{ tbNIl cAWS
//{{AFX_DATA_INIT(CAboutDlg) 3~r>G
//}}AFX_DATA_INIT {cYS0%Go
} ;1wRo`RD
nO{m2&r+
void CAboutDlg::DoDataExchange(CDataExchange* pDX) wcd1.$ n
{ Kc%GxD`
CDialog::DoDataExchange(pDX); 3fb"1z#
//{{AFX_DATA_MAP(CAboutDlg) F/QRgXV
//}}AFX_DATA_MAP @5C!`:f
} k3w(KH@
5 wT
e?
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) .5'_5>tkv
//{{AFX_MSG_MAP(CAboutDlg) 5d4/}o}%"
// No message handlers {FrcpcrQa
//}}AFX_MSG_MAP %]iDhXLr
END_MESSAGE_MAP() g aq"+@fH
Q96"^Hd
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) ?FRuuAS
: CDialog(CCaptureDlg::IDD, pParent) ;:Yz7<>Y,
{ ^e1Ux
//{{AFX_DATA_INIT(CCaptureDlg) w<0F-0:8
m_bControl = FALSE; Avc9W[4
m_bAlt = FALSE; H/v|H}d;
m_bShift = FALSE; Ha}TdQ%
m_Path = _T("c:\\"); 8d!t"oj68
m_Number = _T("0 picture captured."); &rj)Oh2
nCount=0; Zdm7As]
bRegistered=FALSE; lV*dQwa?i
bTray=FALSE; 'H]&$AZ;@
//}}AFX_DATA_INIT &t1Uk[
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 saj%[Gsy
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); `F^~*FnR,B
} 4$wn8!x2|
3O'6 Ae
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) >[D(<b(U&
{ V/8"@C
CDialog::DoDataExchange(pDX); DUAI
//{{AFX_DATA_MAP(CCaptureDlg) }1sFddGVt
DDX_Control(pDX, IDC_KEY, m_Key); '&OJ hLE
DDX_Check(pDX, IDC_CONTROL, m_bControl); rZK;=\Ot
DDX_Check(pDX, IDC_ALT, m_bAlt); 4|]0%H~n6
DDX_Check(pDX, IDC_SHIFT, m_bShift); [|&V$
DDX_Text(pDX, IDC_PATH, m_Path); DC-tBbQkk
DDX_Text(pDX, IDC_NUMBER, m_Number);
'Pm.b}p<
//}}AFX_DATA_MAP CBVL/pxy
} #ox&=MY
<uYeev%
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) Y]33:c_;Mo
//{{AFX_MSG_MAP(CCaptureDlg) C=sEgtEI
ON_WM_SYSCOMMAND() k,kr7'Q
ON_WM_PAINT() aYBc)LCd
ON_WM_QUERYDRAGICON() w`Ss MI
ON_BN_CLICKED(ID_ABOUT, OnAbout) s9p~
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) GgNqc i,
ON_BN_CLICKED(ID_CHANGE, OnChange) &6#>a"?"
//}}AFX_MSG_MAP FS1>
J%P
END_MESSAGE_MAP() RXbhuI
Hy9c<X[F9
BOOL CCaptureDlg::OnInitDialog() hbOyrjanx
{ NhgzU+)+
CDialog::OnInitDialog(); TGxmc37?
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); ,*r}23
ASSERT(IDM_ABOUTBOX < 0xF000); wt(Hk6/B
CMenu* pSysMenu = GetSystemMenu(FALSE); hYI0S7{G
if (pSysMenu != NULL) #AN]mH
{ B}&9+2M
CString strAboutMenu; v"K #
strAboutMenu.LoadString(IDS_ABOUTBOX); q5UD!&W
if (!strAboutMenu.IsEmpty()) n$03##pf
{ vRR(b!Lq
pSysMenu->AppendMenu(MF_SEPARATOR); V(^aG=TaW:
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); :CR1Oy 9
} dP7nR1GS
} Wj}PtQ%lp/
SetIcon(m_hIcon, TRUE); // Set big icon yG ,oSp|
SetIcon(m_hIcon, FALSE); // Set small icon &-hz&/A,
m_Key.SetCurSel(0); ;GjZvo
RegisterHotkey(); : =J^ "c
CMenu* pMenu=GetSystemMenu(FALSE); D J:N
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); XP|qY1
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); H/I1 n\
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); @|i
f^
return TRUE; // return TRUE unless you set the focus to a control "7.
lsL5
} z5k9|.hgw
Ol@ssm
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) t
V:oBT*
{ $}TK,/W
if ((nID & 0xFFF0) == IDM_ABOUTBOX) it\U+xu
{ ydx-`yg#
CAboutDlg dlgAbout; [JzOsi~R
dlgAbout.DoModal(); 5{esL4k
} #@v$`Df<
else j/Dc';,d.(
{ p[&6hXTd
CDialog::OnSysCommand(nID, lParam); ~dm/U7B:
} - UMPt"o
} n_qDg
d${RZ}/
void CCaptureDlg::OnPaint() IcDAl~uG
{ ="<S1}.
if (IsIconic()) 5e|2b] f$
{ u[>hs
\3k
CPaintDC dc(this); // device context for painting ]-D&/88``
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); 5Y W.s
// Center icon in client rectangle B/n/bi8T
int cxIcon = GetSystemMetrics(SM_CXICON); RhPEda2
int cyIcon = GetSystemMetrics(SM_CYICON); :9=J=G*
CRect rect; Q
6)5*o8n
GetClientRect(&rect); ;#>,eD2u
int x = (rect.Width() - cxIcon + 1) / 2; f]*_]J/
int y = (rect.Height() - cyIcon + 1) / 2; qtQB}r8
// Draw the icon r'GD
dc.DrawIcon(x, y, m_hIcon); bTrQ(qp
} -2\%?A6L
else j0]|$p
{ `O'@TrI
CDialog::OnPaint();
`n{yls7.
} V.f'Cw
} }Efz+>F02
-y+u0,=p.
HCURSOR CCaptureDlg::OnQueryDragIcon() 6 pQbh*
{ 2o\GU
return (HCURSOR) m_hIcon; ENEn Hu^
} pEn3:.l<
`"#0\Wh
void CCaptureDlg::OnCancel() zq?Iwyo
{ ;Bs^+R7
if(bTray) 1,/L&_=_A
DeleteIcon(); m$U rY(6d
CDialog::OnCancel(); {Y p;R
} .AzGPcJY
F[65)"^
void CCaptureDlg::OnAbout() }$zJdf,\
{ "V>7u{T
CAboutDlg dlg;
Du*O|
dlg.DoModal(); AVx 0aj
} yVP 1=pz_[
_s&sA2r<
void CCaptureDlg::OnBrowse() c[DC
{
"?yu^
CString str; 2Y2J)5,
BROWSEINFO bi; GkutS.2G#
char name[MAX_PATH]; 2Y+8!4^L
a
ZeroMemory(&bi,sizeof(BROWSEINFO));
+T R#
bi.hwndOwner=GetSafeHwnd(); yQ3*~d~U|L
bi.pszDisplayName=name; n5yPUJK2L6
bi.lpszTitle="Select folder"; !N::1c@C
bi.ulFlags=BIF_RETURNONLYFSDIRS; 3XeCaq'N
LPITEMIDLIST idl=SHBrowseForFolder(&bi); QvF UFawN
if(idl==NULL) 2qY+-yOEt
return; \qU .?V[2
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); =h"*1`
str.ReleaseBuffer(); BWz7m9T
m_Path=str; IIW6;jS
if(str.GetAt(str.GetLength()-1)!='\\') 1 ^k#g,
m_Path+="\\"; 0tzMu#
UpdateData(FALSE); x!<?/I)X
} nKoc%TNqe
d_5wMK6O6
void CCaptureDlg::SaveBmp() z
[qO5z~I
{ }k-rOi'jL
CDC dc; SLiQHWw*J
dc.CreateDC("DISPLAY",NULL,NULL,NULL); *Y2d!9F}Sa
CBitmap bm; 4/rdr80
int Width=GetSystemMetrics(SM_CXSCREEN); n<x NE%
int Height=GetSystemMetrics(SM_CYSCREEN); &>!WhC16
bm.CreateCompatibleBitmap(&dc,Width,Height); tVf 1]3(_>
CDC tdc; LAoX'^6
tdc.CreateCompatibleDC(&dc); gXR1nnK
CBitmap*pOld=tdc.SelectObject(&bm); +QqEUf<U*,
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); ]('isq,P
tdc.SelectObject(pOld); '$cU\DTN6
BITMAP btm; m;v/(d>
bm.GetBitmap(&btm); 8")1,
DWORD size=btm.bmWidthBytes*btm.bmHeight; ^<@9ph
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); #Moju
BITMAPINFOHEADER bih; xV
h-Mx+M
bih.biBitCount=btm.bmBitsPixel; [}/\W`C
bih.biClrImportant=0; U
=()T}b>
bih.biClrUsed=0; &UWSf
bih.biCompression=0; )eFq0+6*)
bih.biHeight=btm.bmHeight; a*8^M\>m4
bih.biPlanes=1; p^LUyLG`
bih.biSize=sizeof(BITMAPINFOHEADER); XOM@Pi#z
bih.biSizeImage=size; /}]Irj4m
bih.biWidth=btm.bmWidth; }
r#by%P
bih.biXPelsPerMeter=0; F?LTWm
bih.biYPelsPerMeter=0; 0 w"&9+kV
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); 4YVxRZ1[3
static int filecount=0; XG5mfKMt+
CString name; XZaei\rUn)
name.Format("pict%04d.bmp",filecount++); IEB|Y
name=m_Path+name; O?ZCX_R:L
BITMAPFILEHEADER bfh; !50Fue^JM
bfh.bfReserved1=bfh.bfReserved2=0; r[:)-`]b
bfh.bfType=((WORD)('M'<< 8)|'B'); . <|7BHL
bfh.bfSize=54+size; kCRP?sj
bfh.bfOffBits=54; | Wrf|%p
CFile bf; !/w<F{cl
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ Q6cF<L`bW
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); V9 pKbX
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); v:YW[THre
bf.WriteHuge(lpData,size); ]hBp
elKJ
bf.Close(); Xm7Nr#
nCount++; 6 ]@H .8+
} W*hRYgaX3
GlobalFreePtr(lpData); B_k[N}|zD
if(nCount==1) !9l
c6W
m_Number.Format("%d picture captured.",nCount); =$B:i>z<
else -P09u82
m_Number.Format("%d pictures captured.",nCount); =NH
p%|
UpdateData(FALSE); [Ng#/QXk{
} ^G,]("di`
tZtyx;EP
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) (8<U+)[tPy
{ -vXX u;frt
if(pMsg -> message == WM_KEYDOWN) F3\' WQh
{
Tsez&R$k
if(pMsg -> wParam == VK_ESCAPE) *8zn\No<,
return TRUE; C?bq7kD:H
if(pMsg -> wParam == VK_RETURN) !\a'GO[
return TRUE; 9HlRf6S
} F*F
U[ 5
return CDialog::PreTranslateMessage(pMsg); /5@V $c8
} :QnN7&j|(w
?~e 8:/@
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) ,X&lVv#
{ ?qviJDD|f
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ `e
t0i.
SaveBmp(); P9/5M4]tt
return FALSE; /q4<ZS#
} ]7C=.'Y
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ ).TQYrs
CMenu pop; ~+{OSx<S
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); 7m6@]S6
CMenu*pMenu=pop.GetSubMenu(0); 'AX/?Srd
pMenu->SetDefaultItem(ID_EXITICON); -hf)%o$
CPoint pt; S
x';Cj-
GetCursorPos(&pt); "-Lbz)k
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); W9~vBU
if(id==ID_EXITICON) Y" &