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:
|&h!#Q{7l
[}}oHm3& 一、实现方法
!W{|7Es?. |4x&f!%m 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:
zxTm`Dh;[ \d]&}`'4{f #pragma data_seg("shareddata")
U~!97,|ic HHOOK hHook =NULL; //钩子句柄
FxD\F UINT nHookCount =0; //挂接的程序数目
uWv l<{2 static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
nakhepLN static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
uA*Op45 static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
N{L ]H_= static int KeyCount =0;
E&GUg/d static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
5rfGMk< #pragma data_seg()
J rYpZ.Nh $bD 3 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
;x|4Tm
Js'COO DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
l?Bv9k.^? "JbFbcj BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
:G$NQ*(z cKey,UCHAR cMask)
l{_>?]S5 {
Pg|q{fc BOOL bAdded=FALSE;
;{j:5+' for(int index=0;index<MAX_KEY;index++){
K\,&wU if(hCallWnd[index]==0){
ex&&7$CXc hCallWnd[index]=hWnd;
MoO
jM&9 HotKey[index]=cKey;
laKMQLtv HotKeyMask[index]=cMask;
4VD'<`R[ bAdded=TRUE;
ezC55nm KeyCount++;
eNi.d;8F break;
%ktU 51o }
jFbz:aUF }
Eki7bT@/ return bAdded;
W~Eq_J?I }
nYTI\f/8v //删除热键
=r:D]?8oC BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
H2p1gb# {
%~ZOQ%c1 BOOL bRemoved=FALSE;
S'B7C>i`#N for(int index=0;index<MAX_KEY;index++){
V92e#AR if(hCallWnd[index]==hWnd){
m 9.QGX\] if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
(y=P-nm hCallWnd[index]=NULL;
6n45]? HotKey[index]=0;
\Vr(P> HotKeyMask[index]=0;
L}lc=\ bRemoved=TRUE;
/N{x Ft/? KeyCount--;
eWW\m[k]} break;
oIQor%z }
~Se/uL;* }
FwmE1, }
on\0i{0l8 return bRemoved;
T1\.~]-msb }
>eW HPO \ bd?
`." a~:'OW:Q DLL中的钩子函数如下:
H:a(&Zb [ wr0TbtV LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
Xp4pN{h e {
&*T57tE BOOL bProcessed=FALSE;
v|CRiwx if(HC_ACTION==nCode)
s:i$ s") {
(B7M*e if((lParam&0xc0000000)==0xc0000000){// 有键松开
/J wQ5 switch(wParam)
'~<D[](/F {
|JnJ=@-y case VK_MENU:
*:_xy{m\ MaskBits&=~ALTBIT;
vAHJP$x break;
|A[Le
;, case VK_CONTROL:
-8#Of)W MaskBits&=~CTRLBIT;
;UArDw H break;
OAc+LdT case VK_SHIFT:
r}pYm'e MaskBits&=~SHIFTBIT;
pc:~_6S break;
cuW$%$F default: //judge the key and send message
rP^2MH" break;
zG+oZ }
kYmkKl_ for(int index=0;index<MAX_KEY;index++){
zl4Iq+5~6Q if(hCallWnd[index]==NULL)
W5HC7o\4 continue;
<G}>Gk8x if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
'!b1~+PV {
Nq9@^ E-{M SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
KZsSTB6J bProcessed=TRUE;
{CYFM[V }
yLipuMNV }
$l7
<j_C }
*=UEx0_!q else if((lParam&0xc000ffff)==1){ //有键按下
OiJ1&Fz( switch(wParam)
s-3vp {
mst-:F[h case VK_MENU:
!1-:1Whz8 MaskBits|=ALTBIT;
'<4/Md[ break;
FJ}/g
? case VK_CONTROL:
x_s9DkX MaskBits|=CTRLBIT;
[;83
IoU} break;
`>g:
: case VK_SHIFT:
P)7SK&]r;= MaskBits|=SHIFTBIT;
cOxF.(L break;
gR?=z}`@p default: //judge the key and send message
305() break;
jaFBz&P/# }
NcwZ_*sqj for(int index=0;index<MAX_KEY;index++){
W7_X=>l if(hCallWnd[index]==NULL)
" q0lh continue;
j2k,)MHu!x if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
QUH USDT {
<t.yn\G-w SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
m!tB;:6 bProcessed=TRUE;
Go=MG:` }
3l-8TR }
<;=?~QK%- }
W(9-XlYKE if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
=M*31>"I0 for(int index=0;index<MAX_KEY;index++){
E}b"
qOV if(hCallWnd[index]==NULL)
3.xsCcmP continue;
qVx4 t"%L> if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
rMdOE&5G SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
tF
O27z@ //lParam的意义可看MSDN中WM_KEYDOWN部分
wHEt;rc( }
![0\m2~iv }
OLXG0@ }
^R!
qxSj return CallNextHookEx( hHook, nCode, wParam, lParam );
K\,)9:`t }
dE%rQE7' ?WKFDL'_0j 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
L^Fni~ =j#uH`jgW BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
j[F\f> BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
LeF Z%y)F Z[[qW
f 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
)4bBR@QM s%1 O}X$c LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
qm{(.b^ {
4703\
HK if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
v8I&~_b {
z)#I"$!d //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
Vof[yL ` SaveBmp();
[h
{zT)[ return FALSE;
V<*PaS.. }
|~Z.l …… //其它处理及默认处理
)CD4k:bm }
(1^AzE%U+Z 3-`IMNn! ; {iX_% 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
y
U
=) g TMpV.iH 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
1I{vBeMj |Rd?s0u 二、编程步骤
_)"-zbh}{ SDwTGQ/0 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
^KM' O8 -Wd2FD^x 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
&CpxD."8x G%jgr"]\z 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
Hbn%CdDk1 nm`[\3R 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
~k^rI jR (y*7
gf 5、 添加代码,编译运行程序。
:k*'MU} Ub2t7MU 三、程序代码
&)zNu HIsIW%B ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
jhgS@g=@ZC #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
A<fKO <d #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
'y[74?1 #if _MSC_VER > 1000
($pN OGH #pragma once
;|}N\[fk%] #endif // _MSC_VER > 1000
K!Te*?b #ifndef __AFXWIN_H__
2Tec#eYe #error include 'stdafx.h' before including this file for PCH
L-?
?%_= #endif
zkt`7Pg;J #include "resource.h" // main symbols
v[{g"C class CHookApp : public CWinApp
}E0~' {
*:gx1wd public:
t~]n"zgovz CHookApp();
rofj&{w // Overrides
`u$
Rd // ClassWizard generated virtual function overrides
wI8 //{{AFX_VIRTUAL(CHookApp)
b
5<&hN4g public:
/Jj7+? virtual BOOL InitInstance();
c!*yxzs\ virtual int ExitInstance();
}Z#KPI8\Q //}}AFX_VIRTUAL
1y'8bt~7Pf //{{AFX_MSG(CHookApp)
C~-x637/ // NOTE - the ClassWizard will add and remove member functions here.
]9qY(m // DO NOT EDIT what you see in these blocks of generated code !
js;p7wi //}}AFX_MSG
o@:${>jw DECLARE_MESSAGE_MAP()
nWb*u };
@6h,#8# LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
nsn BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
gR1vUad7 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
,.DTJ7H+ BOOL InitHotkey();
E:vgG|?? BOOL UnInit();
)Q= EmZbJz #endif
[$M=+YRHMW K)b@,/ 5 //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
K</EVt,U~ #include "stdafx.h"
#NQpr #include "hook.h"
;E:vsVK #include <windowsx.h>
&n$kVNE #ifdef _DEBUG
Iue}AGxu:{ #define new DEBUG_NEW
nilis-Bk_ #undef THIS_FILE
I]Ev6>=; static char THIS_FILE[] = __FILE__;
]Q0m]OaT #endif
sjGy=d{:oL #define MAX_KEY 100
vz6No%8X #define CTRLBIT 0x04
4fauI%kc #define ALTBIT 0x02
}uP`=T!"8 #define SHIFTBIT 0x01
" GRR,7A #pragma data_seg("shareddata")
YYNh|
2 HHOOK hHook =NULL;
bUvVt3cm UINT nHookCount =0;
Z5/*iun static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
rebnV&- static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
e~oh%l^C72 static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
<<'%2q5 static int KeyCount =0;
BOt1J_;(rO static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
eJbZA&: #pragma data_seg()
)XCG4-1 HINSTANCE hins;
`]~1pc void VerifyWindow();
%#t*3[ BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
9*~bAgkWI //{{AFX_MSG_MAP(CHookApp)
I]GGmN // NOTE - the ClassWizard will add and remove mapping macros here.
!0-KB# // DO NOT EDIT what you see in these blocks of generated code!
E' -lpE //}}AFX_MSG_MAP
j<NZ4Rf END_MESSAGE_MAP()
0JT"Pv_ \k4tYL5 CHookApp::CHookApp()
JuW"4R {
Gh%R4)} // TODO: add construction code here,
u,RR|/@ // Place all significant initialization in InitInstance
5
w-Pq&q }
$8>kk F$/7X~* CHookApp theApp;
f \ E9u} LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
B]2m(0Y>>v {
H 48YX(HI BOOL bProcessed=FALSE;
Xwp6]lx if(HC_ACTION==nCode)
m^!Kthq {
,J6t
1V if((lParam&0xc0000000)==0xc0000000){// Key up
YCl&}/.pA switch(wParam)
E)3Ah! {
e5AZU7%. case VK_MENU:
\LG0 MaskBits&=~ALTBIT;
|N5r_V break;
~=GwNo_ case VK_CONTROL:
P2Jo^WS MaskBits&=~CTRLBIT;
RGgePeaw break;
joz0D!-"# case VK_SHIFT:
^F)t>K$0m MaskBits&=~SHIFTBIT;
Mz7qC3Z break;
knn9s0'Q default: //judge the key and send message
Ab
#}BHI break;
v6U Gr4 }
*{:Zdg'~E for(int index=0;index<MAX_KEY;index++){
(H^)wDb if(hCallWnd[index]==NULL)
shgZru continue;
~6A;H$dr if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
o 9rZ&Q< {
n'To: SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
"D,}| bProcessed=TRUE;
]z O6ESH }
WA6reZ }
\G0YLV~>P }
oeYUsnsbi else if((lParam&0xc000ffff)==1){ //Key down
A^c
( switch(wParam)
`]`S"W7& {
U?%T~! case VK_MENU:
>*MGF=.QG MaskBits|=ALTBIT;
HV&i! M@T break;
U5
ia| V case VK_CONTROL:
cG"wj$'w MaskBits|=CTRLBIT;
*(s0X[- break;
00B,1Q HP case VK_SHIFT:
82)%`$yZw[ MaskBits|=SHIFTBIT;
e'yw8U5E/ break;
g@'2 :'\ default: //judge the key and send message
DH7]TRCMZ) break;
tmd{Gx}c }
C{:U<q for(int index=0;index<MAX_KEY;index++)
q`VkA
\ {
j[,XJ,5= if(hCallWnd[index]==NULL)
I5*<J n continue;
m\oxS;fxWi if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
;m=k
FZ? {
e45)t}' SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
"8p<NsU bProcessed=TRUE;
>Hu3Guik] }
B)*1[Jf{4 }
:9DyABK=Cv }
J`4V\D}n if(!bProcessed){
?bH` for(int index=0;index<MAX_KEY;index++){
Mp QsM-iW if(hCallWnd[index]==NULL)
Dz,|sHCmk continue;
j0^1BVcj if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
ZkWMo=vL SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
[b+B"f6 }
0Bt>JbGs4 }
eiCmd
=O7 }
$O&N
return CallNextHookEx( hHook, nCode, wParam, lParam );
9?q ^yy }
nA(5p?D+YB Y <`X$ BOOL InitHotkey()
~g9~D}48k' {
4k9$'
k if(hHook!=NULL){
p"7]zq]' nHookCount++;
O=vD6@QI return TRUE;
6i;q=N$' }
PMi.)%++ else
{Mb2X^@7 hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
bXvriQ.UH if(hHook!=NULL)
EERCb%M8Z nHookCount++;
!UR3`Xk return (hHook!=NULL);
Y(] W+k< }
#)#J`s1R BOOL UnInit()
X(O:y^sX} {
.}GOHW)} if(nHookCount>1){
]4/C19Fe! nHookCount--;
IB$i^ return TRUE;
7^V`B^Vu }
DR
@yd, BOOL unhooked = UnhookWindowsHookEx(hHook);
s?"\+b if(unhooked==TRUE){
k0&FUO nHookCount=0;
S}VN(g hHook=NULL;
'[HBKn$` }
~# \{'< return unhooked;
Ci 'V }
7xM4=\~OG :]4s;q:m BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
IAWs}xIly {
k&M~yb BOOL bAdded=FALSE;
XI:+EeM? for(int index=0;index<MAX_KEY;index++){
JC`;hY if(hCallWnd[index]==0){
$> ;| hCallWnd[index]=hWnd;
s1R#X~d HotKey[index]=cKey;
/l$fQ:l HotKeyMask[index]=cMask;
d}
5 bAdded=TRUE;
A#{I-*D[ KeyCount++;
BUdO:fr break;
}
@
[!%hE }
AQtOTT$ }
2kOaKH[(q return bAdded;
k{'<J(Hb }
OJ7Uh_;/ O3?^P"C BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Rqbz3h~ {
[?=DPE% BOOL bRemoved=FALSE;
XZQ-Ig18 for(int index=0;index<MAX_KEY;index++){
m^zD'] if(hCallWnd[index]==hWnd){
;pS+S0U
if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
?&!!(dWFH hCallWnd[index]=NULL;
++UxzUd HotKey[index]=0;
FRL;fF HotKeyMask[index]=0;
txm6[Io bRemoved=TRUE;
'f0R/6h\3s KeyCount--;
gV$0J?Pr. break;
JvEW0-B^l, }
3UF^Ff<wo }
EuA352x }
?9 W2ax-4 return bRemoved;
eoFG$X/PO }
dNCd-ep 's5H_ah void VerifyWindow()
K47.zu {
,<C~DSAyZ for(int i=0;i<MAX_KEY;i++){
[vz2< genn if(hCallWnd
!=NULL){ ?)[=>Kp
if(!IsWindow(hCallWnd)){ l: kW|
hCallWnd=NULL; B
qINU
HotKey=0; w11L@t[5W8
HotKeyMask=0; CKSs(-hkJ
KeyCount--; ks69Z|D
} 1d842pt
} <;@E
.I\N
} [h_d1\ Cr
} i-#D c(9
foBF]7Bz?
BOOL CHookApp::InitInstance() ?=1i:h
{ R&:Qy7"
AFX_MANAGE_STATE(AfxGetStaticModuleState()); IGo5b-ds
hins=AfxGetInstanceHandle(); :o87<)
_F
InitHotkey(); E(z|LS*3
return CWinApp::InitInstance(); %tPy]{S..
}
;5
I)9,
int CHookApp::ExitInstance() h#dfhcU>
{ 0W_u"UY$c
VerifyWindow(); b7">IzAe
UnInit(); 5|`./+Ghk
return CWinApp::ExitInstance(); -G#m'W&
} G)f!AuN=
F7/%,vf
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file 7AqbfLO
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) C1qlB8(Wh>
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ g $^Yv4
#if _MSC_VER > 1000 yigq#h^
#pragma once .81 ~ K[
#endif // _MSC_VER > 1000 %h;1}SFl0
cxFyN;7
class CCaptureDlg : public CDialog ]US!3R^
{ - (q7"h
// Construction OB^j
b8
public: &Z9rQH81f>
BOOL bTray; SLH;iqPT
BOOL bRegistered; ~fzuz'"^
BOOL RegisterHotkey(); /)dyAX(
UCHAR cKey; eOfVBF<C2
UCHAR cMask; L.S/M v
void DeleteIcon(); *iyc,f^w
void AddIcon(); Df]*S
UINT nCount; tWQ$`<h
void SaveBmp(); H
=&K_
CCaptureDlg(CWnd* pParent = NULL); // standard constructor |@f\[v9`
// Dialog Data %WX^']p
//{{AFX_DATA(CCaptureDlg) Zw<<p|{)<
enum { IDD = IDD_CAPTURE_DIALOG }; 6TXTJ]er
CComboBox m_Key; K!2%8Ej,J
BOOL m_bControl; Ysw&J}6e
BOOL m_bAlt; g&8-X?^Q
BOOL m_bShift; PeLzZ'$D
CString m_Path; /#q6.du
CString m_Number; afu!.}4Ct
//}}AFX_DATA r029E-
// ClassWizard generated virtual function overrides 6['o^>\}f
//{{AFX_VIRTUAL(CCaptureDlg) MlW*Tugg
public: 8KKhD$
virtual BOOL PreTranslateMessage(MSG* pMsg); ?N@[R];
protected: YTr+"\CkA
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support S&D8Rao5
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); cJM.Q_I}Y
//}}AFX_VIRTUAL ^f,%dM=i=
// Implementation 9g.5:
protected: "3_GFq
HICON m_hIcon; T#[#w*w/
// Generated message map functions sk3AwG;A
//{{AFX_MSG(CCaptureDlg) ~]'yUd1gSZ
virtual BOOL OnInitDialog(); [N<rPHT
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); .SNg2.
afx_msg void OnPaint(); :sAUV79M
afx_msg HCURSOR OnQueryDragIcon(); .kgt?r
virtual void OnCancel(); 9o3?
afx_msg void OnAbout(); GLMpWD`Wo
afx_msg void OnBrowse(); Dz8aJ6g
afx_msg void OnChange(); tX,x% (
//}}AFX_MSG fX>y^s?y
DECLARE_MESSAGE_MAP() ToD_9i
}6
}; g0-rQA
#endif )l`VE_(|
0ZZ Wj%
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file \eRct_
#include "stdafx.h" QFgKEUNgl
#include "Capture.h" I8YCXh
#include "CaptureDlg.h" .nEiYS|T
#include <windowsx.h> k)W&ZY
#pragma comment(lib,"hook.lib") Q8.LlE999
#ifdef _DEBUG kdhwnO
#define new DEBUG_NEW dQO5
#undef THIS_FILE U\-R'Z>M
static char THIS_FILE[] = __FILE__; rZ2cC#
#endif _6g(C_m'T?
#define IDM_SHELL WM_USER+1 s=556
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); Py?Q::
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); Lg|d[*;'7
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; /w2-Pgm-[\
class CAboutDlg : public CDialog ,lFp4 C
{ m1xR uj]
public: 'ud[#@2
CAboutDlg(); #Jr4LQ@A9
// Dialog Data O{Z${TC[
//{{AFX_DATA(CAboutDlg) 4=N(@mS
enum { IDD = IDD_ABOUTBOX }; Yb1Q6[!
//}}AFX_DATA a>Zp?*9
// ClassWizard generated virtual function overrides )lq+Gv[%F
//{{AFX_VIRTUAL(CAboutDlg) >2X-98,
protected: IaU%L6Q]
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support #7/39zTK
//}}AFX_VIRTUAL BO%'/2eV
// Implementation -=ZDfM
protected: t+{vbS0
//{{AFX_MSG(CAboutDlg) '|<S`,'#hg
//}}AFX_MSG &:1q3gDm
DECLARE_MESSAGE_MAP() usC$NVdm
}; '}"&JO~vPj
<y&&{*KW8m
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) Ys&)5j-
{ ;k,@^f8
//{{AFX_DATA_INIT(CAboutDlg) ? PpS4Rd
//}}AFX_DATA_INIT e*U6^Xex
} s'$2 }K
R'" c
void CAboutDlg::DoDataExchange(CDataExchange* pDX) (L(n%
{ 8(L6I%k*
CDialog::DoDataExchange(pDX); jx2{kK
//{{AFX_DATA_MAP(CAboutDlg) 14 (sp
//}}AFX_DATA_MAP @7KG0<]h
} 8 )n g> l
?GW}:'z
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) ;~'& m
//{{AFX_MSG_MAP(CAboutDlg) vhcp[=e :
// No message handlers M}Xf<:g)
//}}AFX_MSG_MAP tBX71d
T
END_MESSAGE_MAP() B-PX/Q
5L_`Fw\l
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) v G9>e&Be
: CDialog(CCaptureDlg::IDD, pParent) 7R# }AQ
{ HxcL3Bh$~}
//{{AFX_DATA_INIT(CCaptureDlg) M>}_2G]#F
m_bControl = FALSE; [^^ Pl:+
m_bAlt = FALSE; vu#ZLq
m_bShift = FALSE; +w"?q'SnF
m_Path = _T("c:\\"); oYt 34@{?
m_Number = _T("0 picture captured."); C\B4Uu6q
nCount=0; j-.Y!$a%6
bRegistered=FALSE; %%zlqd"0
bTray=FALSE; e[0"x.gu
//}}AFX_DATA_INIT `csZ*$7
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 ga(k2Q;y
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); *ZxurbX#
} K<kl2#
G=SMz+z
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) 76KNgV)3
{ ={+8jQqi1
CDialog::DoDataExchange(pDX); 9C0#K\
//{{AFX_DATA_MAP(CCaptureDlg) {8oGWQgrj
DDX_Control(pDX, IDC_KEY, m_Key); F\|4zM
DDX_Check(pDX, IDC_CONTROL, m_bControl); =%7s0l3z
DDX_Check(pDX, IDC_ALT, m_bAlt); P{yb%@I~J
DDX_Check(pDX, IDC_SHIFT, m_bShift); ivyaGAF}+o
DDX_Text(pDX, IDC_PATH, m_Path); _x|.\j
DDX_Text(pDX, IDC_NUMBER, m_Number); 3!vzkBr
//}}AFX_DATA_MAP ?~!9\dek,
} n?;rWq"
xu%eg]
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) tC5-^5[y
//{{AFX_MSG_MAP(CCaptureDlg) z^z`{B
ON_WM_SYSCOMMAND() ;{q*
ON_WM_PAINT() PB?2{Cj
ON_WM_QUERYDRAGICON() c&FOt
ON_BN_CLICKED(ID_ABOUT, OnAbout) !a-B=pn!]
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) 0!7p5
ON_BN_CLICKED(ID_CHANGE, OnChange) ! Dj2/][
//}}AFX_MSG_MAP Poa&htxe1
END_MESSAGE_MAP() py+\e"s
S(?A3 H
BOOL CCaptureDlg::OnInitDialog() [[zNAq)"
{ _SJ:|I
CDialog::OnInitDialog(); u6Lx3
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); HD/!J9&
ASSERT(IDM_ABOUTBOX < 0xF000); %OHZOs
CMenu* pSysMenu = GetSystemMenu(FALSE); %.?V\l
if (pSysMenu != NULL) ??U/Qi180
{ ,&qC
R
sw
CString strAboutMenu; o:fe`#t
strAboutMenu.LoadString(IDS_ABOUTBOX); !8|}-eFY
if (!strAboutMenu.IsEmpty()) 7(N+'8
{ <aDZ{T%
pSysMenu->AppendMenu(MF_SEPARATOR); G\TO]c
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); 75lh07
} ^gZ,A]
} d7
H *F
SetIcon(m_hIcon, TRUE); // Set big icon /XEW]/4
SetIcon(m_hIcon, FALSE); // Set small icon JXYZ5&[
m_Key.SetCurSel(0); > pP&/
RegisterHotkey(); GNe^~
CMenu* pMenu=GetSystemMenu(FALSE); ,"XiI$Le
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); O#^H.B
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); d]"4aS
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); 0GXY2+p}S
return TRUE; // return TRUE unless you set the focus to a control .V?[<}OJn
} 8/BMFRJ
^W,5A;*3
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) (6Z^0GL
{ +E_yEH7_)
if ((nID & 0xFFF0) == IDM_ABOUTBOX) {svo!pN:
{
mPk'a
CAboutDlg dlgAbout; XW" 0:}`J
dlgAbout.DoModal(); s&(;
} y,3ZdY"
else IhYR4?e
{ JcA+ztPU
CDialog::OnSysCommand(nID, lParam); Np/\}J&IF
} Zo yO[#
} VL$
T
$
VP1(C
void CCaptureDlg::OnPaint() fzQR0
{ $R1I(sJ
if (IsIconic()) ,0q1Id
{ ]MosiMJF
CPaintDC dc(this); // device context for painting h0@a"DqK
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); f$ xp74hw3
// Center icon in client rectangle d6YXITL)\>
int cxIcon = GetSystemMetrics(SM_CXICON); 2_+>a"8Y
int cyIcon = GetSystemMetrics(SM_CYICON); h%Nd89//
CRect rect; ,7]hjf_h
GetClientRect(&rect); A>1$?A8Q
int x = (rect.Width() - cxIcon + 1) / 2; O9(z"c
int y = (rect.Height() - cyIcon + 1) / 2; I}3F'}JV<
// Draw the icon g}xL7bTlI>
dc.DrawIcon(x, y, m_hIcon); N+rU|iMa.
} '#Au~5
else =I@t%Y
{ r(46jV.sD:
CDialog::OnPaint(); L2ydyXIsd
} _y_}/
} {YzCgf
f7lj,GAZ
HCURSOR CCaptureDlg::OnQueryDragIcon() yXJ25Axb
{ DfD
>hf/
return (HCURSOR) m_hIcon; 2!Dz9m3
} E,}{ iqAb
7|DG1p9C
void CCaptureDlg::OnCancel() v{VF>qEP
{ og5VB
if(bTray) jTvcKm|q
DeleteIcon(); %+N]$Q
CDialog::OnCancel(); Pc`d]*BYi
} )Y7H@e\1
t?4H9~iH
void CCaptureDlg::OnAbout() 'z(Y9%+a
{ &uK(. @
CAboutDlg dlg; 6*q1%rs:w
dlg.DoModal(); ;7QXs39S
} jtP*C_Scv/
:ZV|8xI
void CCaptureDlg::OnBrowse() d+D~NA[M
{ oLT#'42+H
CString str; L7-BuW}&
BROWSEINFO bi; 1
:p'
char name[MAX_PATH]; ew~Z/ A
ZeroMemory(&bi,sizeof(BROWSEINFO)); >v.fH6P,}
bi.hwndOwner=GetSafeHwnd(); P1Hab2%+
bi.pszDisplayName=name; CO='[1"_5
bi.lpszTitle="Select folder"; gEd A
hfx
bi.ulFlags=BIF_RETURNONLYFSDIRS; e0zP LU}
LPITEMIDLIST idl=SHBrowseForFolder(&bi); Z8#nu
if(idl==NULL) 7~e,"^>T
return; s5nw<V9$]
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); -3{Q`@F
str.ReleaseBuffer(); )!2@v@SQ
m_Path=str; kGYpJg9=
if(str.GetAt(str.GetLength()-1)!='\\') 0Z1ksfLU
m_Path+="\\"; ES~b f
UpdateData(FALSE); u}[ a
} q!y. cyL
ga5Q
void CCaptureDlg::SaveBmp() 9\_AB.Z:
{ /?'~`4!(
CDC dc; K ze?@*
dc.CreateDC("DISPLAY",NULL,NULL,NULL); fp' '+R[
CBitmap bm; {aY) Qv}
int Width=GetSystemMetrics(SM_CXSCREEN); l{{,D57J
int Height=GetSystemMetrics(SM_CYSCREEN); {dpC;jsW1
bm.CreateCompatibleBitmap(&dc,Width,Height); w}xA@JgQ%
CDC tdc; @7twe;07r
tdc.CreateCompatibleDC(&dc); -tj#BEC[H(
CBitmap*pOld=tdc.SelectObject(&bm); k$3pmy*
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); JU?;Kq9R
tdc.SelectObject(pOld); nqj(V
BITMAP btm; IzpE|8l
bm.GetBitmap(&btm); EZ)b E9
DWORD size=btm.bmWidthBytes*btm.bmHeight; An.
A1y
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); xE:jcA
d$}
BITMAPINFOHEADER bih; 1=R$ RI
bih.biBitCount=btm.bmBitsPixel; 9zwD%3Ufn
bih.biClrImportant=0; 4X+xh|R:U
bih.biClrUsed=0; TEz;:* ,CG
bih.biCompression=0; atTR6%!6
bih.biHeight=btm.bmHeight; 41X`.
bih.biPlanes=1; qVC+q8
bih.biSize=sizeof(BITMAPINFOHEADER); E>bkEm
bih.biSizeImage=size; 5whW>T
bih.biWidth=btm.bmWidth; pU7;!u:c4%
bih.biXPelsPerMeter=0; lL)f-8DX
bih.biYPelsPerMeter=0; \sNgs#{7E7
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); /ox7$|Jyr
static int filecount=0; 5Z>a}s_i
CString name; $6rm;UH
name.Format("pict%04d.bmp",filecount++); W%L'nR~w$
name=m_Path+name; wQ+pVu?6_
BITMAPFILEHEADER bfh; rl|'.~mc
bfh.bfReserved1=bfh.bfReserved2=0; k&$ov
bfh.bfType=((WORD)('M'<< 8)|'B'); d&+]@ Ii
bfh.bfSize=54+size; z%8`F%2
bfh.bfOffBits=54; d%7?913
CFile bf; COh#/-`\1
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ q\EYsN</;
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); !mlfG"FE
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); hVzyvpw
bf.WriteHuge(lpData,size); @_ %RQO_X
bf.Close(); cMY}Y
[2c
nCount++; rN}pi@
} &
kC
GlobalFreePtr(lpData); /~NX<Ye&
if(nCount==1) A6z,6v6
m_Number.Format("%d picture captured.",nCount);
d$$5&a
else q} e#L6cM
m_Number.Format("%d pictures captured.",nCount); >(RkoExO/
UpdateData(FALSE); _
$F=A
} xX<f4H\'
"\o#YC
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) w6vbYPCN
{ KuJ)alD;1
if(pMsg -> message == WM_KEYDOWN) }4C_r'd6
{ 1-y8Hy_a2
if(pMsg -> wParam == VK_ESCAPE) *Jsb~wta
return TRUE; w%])
if(pMsg -> wParam == VK_RETURN) X:W\EeH
return TRUE; ; J W]b]
} Hu|Tj<S
return CDialog::PreTranslateMessage(pMsg); vb>F)X?b_
} Ae>+Fcv
poQ_r<I
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) ^#R`Uptib
{ +f/
I>9G
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ b}qfOgd5
SaveBmp(); ~J].~^[
return FALSE; y0xBNhev
} >=N-P<%
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ DT]4C!dh
CMenu pop; RL`E}:V
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); 8jz>^.-o
CMenu*pMenu=pop.GetSubMenu(0); qyRN0ZB"A^
pMenu->SetDefaultItem(ID_EXITICON); yj:@Fg-3g
CPoint pt; BM!ZdoKrKt
GetCursorPos(&pt); Y<T0yl?
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); </25J((
if(id==ID_EXITICON) 'yiv.<4
DeleteIcon(); D6VdgU|
else if(id==ID_EXIT) E)*ht;u
OnCancel(); &wQ;J)13
return FALSE; edL2ax
} Ze0qRLuH!
LRESULT res= CDialog::WindowProc(message, wParam, lParam); v2x+_K}J
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) }b1G21Dc!
AddIcon(); !>9s
return res; pT,8E(*l2
} 9nAP%MA`
NJBSVCb
void CCaptureDlg::AddIcon() irlFB#..
{ &PC6C<<f
NOTIFYICONDATA data; }d%CZnY&7
data.cbSize=sizeof(NOTIFYICONDATA); Vlx.C~WYn
CString tip; }TTghE!
tip.LoadString(IDS_ICONTIP); 6_`Bo%
data.hIcon=GetIcon(0); %"{P?V<-V
data.hWnd=GetSafeHwnd(); mqZK1<r
strcpy(data.szTip,tip); hV@ N-u^
data.uCallbackMessage=IDM_SHELL; ZUI6VM
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; qx#M6\L!
data.uID=98; B{/og*xd*1
Shell_NotifyIcon(NIM_ADD,&data); a"@f< wU~
ShowWindow(SW_HIDE); 0Md>-H;ZY
bTray=TRUE; _$UJ'W})/
} *}]# E$
;.4y@?B
void CCaptureDlg::DeleteIcon() 6Q :Wo)^!
{ q(n"r0)=
NOTIFYICONDATA data; `NtW+v
data.cbSize=sizeof(NOTIFYICONDATA); vEI{AmogRx
data.hWnd=GetSafeHwnd(); c0o]O[
data.uID=98; s*rR>D:
Shell_NotifyIcon(NIM_DELETE,&data); WOn53|GQK
ShowWindow(SW_SHOW); c'Z=uL<Rm
SetForegroundWindow(); WWpMuB_G
ShowWindow(SW_SHOWNORMAL); %_|KiW
bTray=FALSE; Hhtl~2t!0
} y[b8rv
tdK&vqq
void CCaptureDlg::OnChange() bUcp8
{ `}ak]Z_
RegisterHotkey(); ;a?<7LIx
} uB)q1QQsqp
T7nI/y
BOOL CCaptureDlg::RegisterHotkey() LzL)qdL
{ Pg}QRCB@
UpdateData(); 1o&z