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:
{E7STLQ_%
x8~*+ j 一、实现方法
$$< I}eMd> ):}A Quy] 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:
uPxjW"M+ g5u4|+70 #pragma data_seg("shareddata")
LafBf6wds HHOOK hHook =NULL; //钩子句柄
12_7UWZ" UINT nHookCount =0; //挂接的程序数目
ll- KK`Ka static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
0
0|!g"E>$ static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
B7YE+ static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
&
9
c^9<F static int KeyCount =0;
065 =I+Vo static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
0PsQ
1[1 #pragma data_seg()
]mUt[Yy:z fny6`_O 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。
oA7| s1 ?r5a* 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:
r.6?| 3(vm'r&5n> BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
='_3qn. cKey,UCHAR cMask)
i\gt
@ {
IN;9p w BOOL bAdded=FALSE;
`&xdS H for(int index=0;index<MAX_KEY;index++){
Uj3HAu if(hCallWnd[index]==0){
8lS
RK% hCallWnd[index]=hWnd;
wzJdS}Yy!y HotKey[index]=cKey;
<*-8E(a HotKeyMask[index]=cMask;
m/(/!MVy bAdded=TRUE;
7Cbr'!E\_V KeyCount++;
:i@
$s/ break;
$b2~H+u( }
%+;l|Z{Uf }
5,V*aP return bAdded;
Kv<mDA! }
Y6d~hLC //删除热键
v\qyDZ VV BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
&0 "*.:J9 {
&^uaoB0 BOOL bRemoved=FALSE;
Ro<x#Uo for(int index=0;index<MAX_KEY;index++){
[McqwU/Q if(hCallWnd[index]==hWnd){
a"T+CA if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
LP'q$iB! hCallWnd[index]=NULL;
^N
4Y*NtV7 HotKey[index]=0;
H\N}0^ea HotKeyMask[index]=0;
x K\i&A bRemoved=TRUE;
: yq2
XE%r KeyCount--;
6E:H break;
/C5py-I }
8Gy*BpmJn }
;l `Ufx }
sG[qlzR=8 return bRemoved;
J$sp6g>K }
s{V&vRr 8Q{9AoQ3' DIWyv- DLL中的钩子函数如下:
,j\uvi(Y v0tFU!Q% LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
dLwP7#r {
8*&73cp BOOL bProcessed=FALSE;
)
LTV+? if(HC_ACTION==nCode)
l @@pXg3 {
^P/OHuDL if((lParam&0xc0000000)==0xc0000000){// 有键松开
w}t}Sh switch(wParam)
mqUDve( {
!dcvG9JZ case VK_MENU:
d{@'&?tj MaskBits&=~ALTBIT;
cfg.&P> break;
gTB|IcOs case VK_CONTROL:
b`^?nD7 MaskBits&=~CTRLBIT;
8x7TK2r break;
[;F!\B- case VK_SHIFT:
<S6?L[_ MaskBits&=~SHIFTBIT;
hNgT/y8 break;
!W0JT#0 default: //judge the key and send message
7.g,&s%q break;
\u[5O@v# }
!8W0XUqh+ for(int index=0;index<MAX_KEY;index++){
CRrEs
18;# if(hCallWnd[index]==NULL)
IB 4L(n1 continue;
>9#) obw if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
=?wDQ: {
QR8]d1+GV SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
nGc'xQy0 bProcessed=TRUE;
PU B0H }
)J+rt^4| }
7Q~W}`Qv' }
T2)CiR-b else if((lParam&0xc000ffff)==1){ //有键按下
Uspv^O9_ switch(wParam)
{TMng& {
qs_cC3"=%= case VK_MENU:
/RxqFpu|. MaskBits|=ALTBIT;
p|a`Q5z! break;
I3T;|;P7 case VK_CONTROL:
DW :\6k MaskBits|=CTRLBIT;
[eTEK W] break;
o8%o68py case VK_SHIFT:
MTgf. MaskBits|=SHIFTBIT;
[z=!OFdE break;
ZC<EPUV( default: //judge the key and send message
Sz')1< break;
p:{L fQ }
o54=^@>O<j for(int index=0;index<MAX_KEY;index++){
xcQ^y}JN if(hCallWnd[index]==NULL)
-;qK_x continue;
p-rQ'e if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
[C~N#S[] {
",,.xLI7 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
Q^l!cL| { bProcessed=TRUE;
Ah5o>ZtcO }
T-kHk( }
w-v8P`V }
REi"Aj= if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
CD^@*jH9" for(int index=0;index<MAX_KEY;index++){
'@\[U0?@K if(hCallWnd[index]==NULL)
US9@/V*2 continue;
w+5OI9 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
AxTFVot SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
mRGr+m //lParam的意义可看MSDN中WM_KEYDOWN部分
)qFqf<:yc }
*p0n^XZ% ? }
8. +f@wv }
N}{V*H^0QU return CallNextHookEx( hHook, nCode, wParam, lParam );
EBQ_c@ }
.N\t3\9} 7X>@r"9< 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:
X`eX+9 dBN: BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
{`J!DFfur BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
(r}StR+ \RFA?PuY 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:
/;21?o &f?JtpB LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
NxK.q)tj6 {
rfSEL
57' if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
29|nt1Z {
L/vw7XNrX //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
N#R8ez` SaveBmp();
GU Mf}y return FALSE;
9]tW; ? }
M.)z;[3O …… //其它处理及默认处理
$~
d6KFT }
wXBd"]G)C CR#-!_=4 Z7e"4wA 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
AAB_Ytf ,MHF 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
o`'4EVw* I\j- 二、编程步骤
Zny9TP `7V1 F.\ 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
PtL8Kd0`C .uN(44^+x 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
uLI;_,/: JZ-64OT 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
G[OJ<px qk0cf~gz 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
c@4$)68 2t{Tz}g* 5、 添加代码,编译运行程序。
XZ8]se"C 6KN6SN$ 三、程序代码
iP$>/ [I &Fk|"f+ ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
X .K*</(g #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
:inVwc #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
|^F$Ta #if _MSC_VER > 1000
j*1MnP3/8Y #pragma once
^ ~Tn[w W_ #endif // _MSC_VER > 1000
;vpq0t` #ifndef __AFXWIN_H__
W}(T5D" 3x #error include 'stdafx.h' before including this file for PCH
j4=\MK #endif
;LKYA?=/V #include "resource.h" // main symbols
x&EMg! class CHookApp : public CWinApp
rO/Sj<0^ {
b!"FM/% public:
0}9j l CHookApp();
k@[[vj|W // Overrides
p2+K-/}ApP // ClassWizard generated virtual function overrides
k%s,(2)30 //{{AFX_VIRTUAL(CHookApp)
{!.w} public:
O\%0D.HEz virtual BOOL InitInstance();
v&f\ Jv7 virtual int ExitInstance();
<fMQ#No //}}AFX_VIRTUAL
zP c54>f //{{AFX_MSG(CHookApp)
PVmePgF
// NOTE - the ClassWizard will add and remove member functions here.
"`Xbi/i // DO NOT EDIT what you see in these blocks of generated code !
YNp-A.o
W@ //}}AFX_MSG
Ou
f \%E< DECLARE_MESSAGE_MAP()
eOZ~p };
8N<mV^|} LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
$!\L6;: BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
n+vv
% BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
[~n|R Oo BOOL InitHotkey();
Sj8fo^K50 BOOL UnInit();
aan(69=jz #endif
p}X *HJq$ d9T:0A`M //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
5.kKg=a #include "stdafx.h"
rQTG-& , #include "hook.h"
'#QZhz(+ #include <windowsx.h>
!y2yS/ #ifdef _DEBUG
#TeAw<2U #define new DEBUG_NEW
eqWs(` #undef THIS_FILE
TA#pA(k static char THIS_FILE[] = __FILE__;
h 3 J& #endif
8'v:26 #define MAX_KEY 100
n#
FkgXP$ #define CTRLBIT 0x04
[DtMT6F3 #define ALTBIT 0x02
Z 2$S'}F #define SHIFTBIT 0x01
MY(51)* #pragma data_seg("shareddata")
Pb59RE:7V HHOOK hHook =NULL;
8CvNcO;H0 UINT nHookCount =0;
h]VC<BD6S static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
xZ QyH static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
a% /x static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
,wyEo>>4) static int KeyCount =0;
wDBU+Z static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
D<*)^^ #pragma data_seg()
Q7mikg=1- HINSTANCE hins;
ZA'0q void VerifyWindow();
-KqMSf&9 BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
hN!{/Gc| //{{AFX_MSG_MAP(CHookApp)
^j1G08W // NOTE - the ClassWizard will add and remove mapping macros here.
Gxt6]+r // DO NOT EDIT what you see in these blocks of generated code!
7sVO?:bj} //}}AFX_MSG_MAP
P(LiH END_MESSAGE_MAP()
0]GenT" y'^b{q@ CHookApp::CHookApp()
/<o?T{z<- {
FJW,G20L // TODO: add construction code here,
R+Ug;r-[ // Place all significant initialization in InitInstance
T~?&hZ> }
m*KI'~#$% 1ZvXRJ)% CHookApp theApp;
%F:; A LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
g12.4+ {
T[J8zLO BOOL bProcessed=FALSE;
/\E3p6\* if(HC_ACTION==nCode)
nD=N MqQ & {
1IK*j+% if((lParam&0xc0000000)==0xc0000000){// Key up
F 9q!Upr_+ switch(wParam)
~P*{%= a {
Ve40H6Ox case VK_MENU:
H*",'`|- MaskBits&=~ALTBIT;
W4nhPH( break;
;g<y{o"Q3p case VK_CONTROL:
OgCNqW
d- MaskBits&=~CTRLBIT;
SkU9iW(k break;
N#X*
0i" case VK_SHIFT:
b$`/f:_ MaskBits&=~SHIFTBIT;
UcB2Aauji break;
w+XwPpM0.n default: //judge the key and send message
[o
6 break;
?rdWhF] }
%+C6#cj for(int index=0;index<MAX_KEY;index++){
pM*(
kN if(hCallWnd[index]==NULL)
iN5[x{^t continue;
uME_/S uO if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
zN\C {
KJt6d`ZN SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
(:}}p}u bProcessed=TRUE;
X 0LC:0+ }
5BM6Pnle }
q3GkfgY }
J{nA
?[ else if((lParam&0xc000ffff)==1){ //Key down
)6px5Vwz switch(wParam)
hE4qs~YB! {
\|Y_,fi case VK_MENU:
5wv7]F< MaskBits|=ALTBIT;
g5*?2D}dqX break;
/?}2OCq case VK_CONTROL:
/9?yw! MaskBits|=CTRLBIT;
i\o * =+{r break;
CH5>u case VK_SHIFT:
d?/>Qqw:# MaskBits|=SHIFTBIT;
SPtx_+ Q)S break;
6DC+8I< default: //judge the key and send message
=pnQ?2Og break;
x,GLGGi}_x }
p.x2R,CU for(int index=0;index<MAX_KEY;index++)
`9acR>00$ {
<2OXXQ1 if(hCallWnd[index]==NULL)
*\`<=,H6< continue;
[|(=15; if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
D@c@Dt {
\\`(x:\ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
akWOE}5# bProcessed=TRUE;
lLU8eHf\ }
}!m}? }
S{,|Fa^PPO }
?0lz!Nq'S if(!bProcessed){
9H+Q/Q*-a for(int index=0;index<MAX_KEY;index++){
}|Bs|$q if(hCallWnd[index]==NULL)
:b;`.`@KL_ continue;
g3(LDqB'. if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
^^*Ia'9 SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
ZM[Z9/S8 }
dKa2_|k' }
r5NH*\Q }
}$(\,SzW return CallNextHookEx( hHook, nCode, wParam, lParam );
BW"24JhF" }
x]t$Zb/Uxa 6S0Gjekr BOOL InitHotkey()
A!R'/m'VG {
c Ze59 if(hHook!=NULL){
XcL%0%` nHookCount++;
mo&9=TaG return TRUE;
]3 QW\k~ }
\=o0MR else
"ZFH_5< hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
|AS<I4+& if(hHook!=NULL)
f{P?|8u nHookCount++;
]oC"gWDYu return (hHook!=NULL);
!w;/ J^ }
[c v!YE BOOL UnInit()
-TS,~`O {
R{Cbp=3J if(nHookCount>1){
y>^0q/=]?O nHookCount--;
2W#^^4^+ return TRUE;
SnM^T(gtS3 }
@7{.err! BOOL unhooked = UnhookWindowsHookEx(hHook);
^@Z8_PZo if(unhooked==TRUE){
^|2m&2 nHookCount=0;
FwD
q@Oj hHook=NULL;
^$[iLX }
YWL7.Y>%5 return unhooked;
8i)9ho< }
z|\n^ZK= #er% q: BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
^1_CS* {
[\&2& BOOL bAdded=FALSE;
lR]FQnZ for(int index=0;index<MAX_KEY;index++){
@|e
we.r if(hCallWnd[index]==0){
kU.@HJ[@j hCallWnd[index]=hWnd;
=T1Xfib HotKey[index]=cKey;
,T;D33XV HotKeyMask[index]=cMask;
WuTkYiF bAdded=TRUE;
L$y~\1- KeyCount++;
E0+~c1P- break;
U\M9sTqo }
ES8(:5 }
s d = bw return bAdded;
h.NCG96S }
0f_A"K kO$n0y5e BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
P!!O~P {
kfZ(:3W$ BOOL bRemoved=FALSE;
0|8cSE<
i
for(int index=0;index<MAX_KEY;index++){
D|^N9lDaQ if(hCallWnd[index]==hWnd){
ekqS=KfWl; if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
.K`n;lVs hCallWnd[index]=NULL;
-<M+ $hK\ HotKey[index]=0;
"bQi+@ HotKeyMask[index]=0;
JVr8O`>T bRemoved=TRUE;
14*6+~38m& KeyCount--;
=&(e* u_ break;
5".bM8o }
@.`k2lxGd~ }
'(g;nU< }
m_,Jbf return bRemoved;
cvhwd\ }
0G2Y_A&e** -Kcjnl92i void VerifyWindow()
9}Ge@a<j {
s)KlKh for(int i=0;i<MAX_KEY;i++){
4t3>`x
7 if(hCallWnd
!=NULL){ s!>9od6^
if(!IsWindow(hCallWnd)){ W=OryEV?
hCallWnd=NULL; r3KNRr@
HotKey=0; ai;Q,Vy
HotKeyMask=0; #&1gVkvp
KeyCount--; bm4Bq>*=U
} kE|x'(x
} T8Q_JQ
} Hi*|f!,H?
} B]Ec
#^R@EZ
BOOL CHookApp::InitInstance() bbDm6,
{ iyXd"O
AFX_MANAGE_STATE(AfxGetStaticModuleState()); &xGpbJG
hins=AfxGetInstanceHandle(); #M5d,%?+#[
InitHotkey(); w0vsdM;G
return CWinApp::InitInstance(); uZ'Z-!=CL
} 5(E&jKn&
4jZB%tH
int CHookApp::ExitInstance() DsbTx.vA
{ c27(en(
VerifyWindow(); q8FpJ\
UnInit(); Ih4$MG6QC
return CWinApp::ExitInstance(); Upcx@zJ
} dnQ6Ras
sg49a9`8
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file leI ]zDk=
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) .GL@`7"
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ }[h]z7e2S
#if _MSC_VER > 1000 Z:es7<#y
#pragma once =1'WZp}D5
#endif // _MSC_VER > 1000 bf{_U%`
9)o@d`*
class CCaptureDlg : public CDialog (:?bQA'Td
{ )=MK&72r
// Construction ?~E"!
public: }maD8,:t
BOOL bTray; iHK.hs;
BOOL bRegistered; {9.UeVz
BOOL RegisterHotkey(); 3IB9-wG
UCHAR cKey; *X ;ch55\
UCHAR cMask; 8eYEi
void DeleteIcon(); =tP^vgfQ
void AddIcon(); +
#E?)
UINT nCount; 7J
?s&x
void SaveBmp(); B([-GpZt[
CCaptureDlg(CWnd* pParent = NULL); // standard constructor 'J5F+,\Ka
// Dialog Data AO|1m$xf
//{{AFX_DATA(CCaptureDlg) ^u1Nbo
enum { IDD = IDD_CAPTURE_DIALOG }; 8#- Nx]VM
CComboBox m_Key; uXLZ!LJo
BOOL m_bControl; %e3E}m>
BOOL m_bAlt; N:'!0|6?x-
BOOL m_bShift; C=v+e%)x@
CString m_Path; +v:]#1
CString m_Number; :Ea|FAeK8
//}}AFX_DATA Oh>hyY)}
// ClassWizard generated virtual function overrides @)vQ>R\k<
//{{AFX_VIRTUAL(CCaptureDlg) "@/pQoLy
public: 9F?-zn;2s
virtual BOOL PreTranslateMessage(MSG* pMsg); CQ^(/B^c
protected: <t*<SdAq>`
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support f?ibyoXL
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); 8oXp8CC
//}}AFX_VIRTUAL qswC>Gi
// Implementation b18f=<#
protected: j3T)gFP
HICON m_hIcon; 2FV@?x0po
// Generated message map functions r<Cr)%z!
//{{AFX_MSG(CCaptureDlg) j(]O$" "
virtual BOOL OnInitDialog(); `wU['{=
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); CR%h$+dzy
afx_msg void OnPaint(); $Bl51VjN
afx_msg HCURSOR OnQueryDragIcon(); UnYb}rF#%
virtual void OnCancel(); z,7;+6*=L
afx_msg void OnAbout(); @:#J^CsM+'
afx_msg void OnBrowse(); #7}M\\$M
afx_msg void OnChange(); Sy4|JM-5
//}}AFX_MSG ?!/8~'xA6
DECLARE_MESSAGE_MAP() =Y6W
Qf
}; '5[(QM5Gi&
#endif 47Bg[
KG9-ac
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file _~ei1
G.R
#include "stdafx.h" O!XSU,
#include "Capture.h" W*#5Sk
#include "CaptureDlg.h" -C}"1|P!
#include <windowsx.h> ?A_+G 5
#pragma comment(lib,"hook.lib") ^blw\;LB
#ifdef _DEBUG DI2e%`$
#define new DEBUG_NEW @xa$two
#undef THIS_FILE W6i9mER-
static char THIS_FILE[] = __FILE__; Kg"eS`-
#endif c$L1aZo
#define IDM_SHELL WM_USER+1 >~Tn%u<
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); i8-Y,&>V
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); >A6W^J|[
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; wy${EY^h
class CAboutDlg : public CDialog ilHf5$
{ &z:bZH]DH
public: ?eX/vqk
CAboutDlg(); yt="kZ
// Dialog Data W}
H~ka
//{{AFX_DATA(CAboutDlg) =BE !
enum { IDD = IDD_ABOUTBOX }; 2;s[ m3
//}}AFX_DATA JoiGuZd>
// ClassWizard generated virtual function overrides ]&q<O0^'
//{{AFX_VIRTUAL(CAboutDlg) \4G9YK-N>
protected: (l-=/6-
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support Zl3e=sg=
//}}AFX_VIRTUAL ~yw]<{ ?
// Implementation ~LV]cX2J(
protected: >dm9YfQ
//{{AFX_MSG(CAboutDlg) Q1x&Zm1v
//}}AFX_MSG Lw_|o[I}
DECLARE_MESSAGE_MAP() Wkjp:`(-$r
}; .Wy'
PuGs%{$(h
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) ?Z?(ky!
{ x 4L3Z__
//{{AFX_DATA_INIT(CAboutDlg) q{f\_2[
//}}AFX_DATA_INIT RJerx:]
} hCr,6nc C
/_{ZWLi(
void CAboutDlg::DoDataExchange(CDataExchange* pDX) KA?%1s(kJ
{ sCrP+K0D
CDialog::DoDataExchange(pDX); ,zHL8SiTX
//{{AFX_DATA_MAP(CAboutDlg) tcv(<0
//}}AFX_DATA_MAP V,d\Wk k/
} O_4B>
)zd
#Pf<2S
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) x< 2]UB`
//{{AFX_MSG_MAP(CAboutDlg) R<6y7?]bZ
// No message handlers 4OgH+<G
//}}AFX_MSG_MAP }8aqSD<:
END_MESSAGE_MAP() SE^l`.U@
*PL&CDu=)
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) d4\JM 65
: CDialog(CCaptureDlg::IDD, pParent) };9s8VZE
{ ,h'Q
//{{AFX_DATA_INIT(CCaptureDlg) 9wldd*r
m_bControl = FALSE; &,jUaC5I
m_bAlt = FALSE; p!^K.P1 '
m_bShift = FALSE; 8zj&e8&v
m_Path = _T("c:\\"); 5 D^#6h 4
m_Number = _T("0 picture captured."); l/zv >
nCount=0; MkJBKS
bRegistered=FALSE; qAH^BrJ
bTray=FALSE; $6wSqH?q
//}}AFX_DATA_INIT ,pGA|ob
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 4}/gV)
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); f)z(9JJL
} E wFq1~
`P !idg*
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) pInEB6L.P
{ Q. O4R_H
CDialog::DoDataExchange(pDX); (Q%
@]
//{{AFX_DATA_MAP(CCaptureDlg) *P`wuXn}
DDX_Control(pDX, IDC_KEY, m_Key); :" !Z9l\@
DDX_Check(pDX, IDC_CONTROL, m_bControl); *#Ia8^z=p
DDX_Check(pDX, IDC_ALT, m_bAlt); ZlMT) ~fM&
DDX_Check(pDX, IDC_SHIFT, m_bShift); n~|?)EL
DDX_Text(pDX, IDC_PATH, m_Path); 2 A!*8w
DDX_Text(pDX, IDC_NUMBER, m_Number); ;NdH]a{
//}}AFX_DATA_MAP xp95KxHHo
} S!=R\_{u$
IBJNs$
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) 2xO[ ?fR
//{{AFX_MSG_MAP(CCaptureDlg) _!DH/?aU
ON_WM_SYSCOMMAND() r/ g{j
ON_WM_PAINT() jF}kV%E
ON_WM_QUERYDRAGICON() g%S/)R,,ct
ON_BN_CLICKED(ID_ABOUT, OnAbout) 7:uz{xPK6
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) a4~B
ON_BN_CLICKED(ID_CHANGE, OnChange) 1Xm>nF~
//}}AFX_MSG_MAP 0'pB7^y
END_MESSAGE_MAP() ]7W!f 2@
DAWF
=p]
BOOL CCaptureDlg::OnInitDialog() q 9xA.*
{ 87l*Y|osP
CDialog::OnInitDialog(); l_:P|
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); aaY AS"/:
ASSERT(IDM_ABOUTBOX < 0xF000); c]#}#RJ`\
CMenu* pSysMenu = GetSystemMenu(FALSE); *.>@
if (pSysMenu != NULL) <zn)f@W
{ Tt~[hC
h
CString strAboutMenu; QA0uT{x90
strAboutMenu.LoadString(IDS_ABOUTBOX); +39uKOrZ
if (!strAboutMenu.IsEmpty()) zM&ro,W
{ :AztHf?X
pSysMenu->AppendMenu(MF_SEPARATOR); ~<VxtcEBz
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); w$f_z*/
} HSG Ln906
} H6 x
SetIcon(m_hIcon, TRUE); // Set big icon T&pCLvkz
SetIcon(m_hIcon, FALSE); // Set small icon ]9w)0iH
m_Key.SetCurSel(0); ,>6a)2xh
RegisterHotkey(); &>+T*-'
CMenu* pMenu=GetSystemMenu(FALSE); #9DJk,SP
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); hui
#<2{
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); n)q8y0if
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); 0:[A4S`X
return TRUE; // return TRUE unless you set the focus to a control L
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} #1'q'f:7&
(b#M4ho*f
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) Bj\
x
{ Z!|r>
if ((nID & 0xFFF0) == IDM_ABOUTBOX) '{
=F/q
{ P`Ku.
ONQ
CAboutDlg dlgAbout; Fh)xm* u(
dlgAbout.DoModal(); jH<Sf: Y(
} SEzjc ~@3
else B;=Z^$%T
{ G2I%^.s
CDialog::OnSysCommand(nID, lParam); 3R%JmLM+R9
} vkGF_aenk
} |wuTw|
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void CCaptureDlg::OnPaint() LZ_VLW9wE
{ ,S`n?.&& 7
if (IsIconic()) 5O]tkHYR
{
p )JR5z
CPaintDC dc(this); // device context for painting @Drl5C}+
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); SQK82/
// Center icon in client rectangle 8ly)G
int cxIcon = GetSystemMetrics(SM_CXICON); K(upzn*a
int cyIcon = GetSystemMetrics(SM_CYICON); gw,K*ph}q
CRect rect; >^g2Tg:
GetClientRect(&rect); \a;xJzc9
int x = (rect.Width() - cxIcon + 1) / 2; -avxH?;?7
int y = (rect.Height() - cyIcon + 1) / 2; >e6 OlIW
// Draw the icon ]h`*w
dc.DrawIcon(x, y, m_hIcon); N80ogio_Tk
} AA,/AKikd
else nD
eVY K
{ Het"x
CDialog::OnPaint(); nsi?.c&0!
} ,iao56`E
} _w?!Mu
[#@lsI
HCURSOR CCaptureDlg::OnQueryDragIcon() aB;f*x
{ LhAW|];
return (HCURSOR) m_hIcon; 3h.,7,T
} eJ45:]_%I@
N(4y}-w$
void CCaptureDlg::OnCancel() }gXhN"
{ JGvhw,g
if(bTray) 3;Yd"
DeleteIcon(); qdpi-*2
CDialog::OnCancel(); 3)W_^6>bM
} HJg&fkHn1
|^5"-3Q
void CCaptureDlg::OnAbout() F5x*#/af
{ C=&n1/
CAboutDlg dlg;
$6UU58>n
dlg.DoModal(); $-UVN0=
} .E^w, o
80Hi v
void CCaptureDlg::OnBrowse() g!_#$az3
{ qZ[HILh!
CString str; }Em{?Hqy
BROWSEINFO bi; M.y!J
char name[MAX_PATH]; Dmi.@.
ZeroMemory(&bi,sizeof(BROWSEINFO)); 9b=0
4aWHm
bi.hwndOwner=GetSafeHwnd(); , 2#Q>
bi.pszDisplayName=name; dO z|CfUhI
bi.lpszTitle="Select folder"; E]n]_{BN]
bi.ulFlags=BIF_RETURNONLYFSDIRS; HEFgEYlO
LPITEMIDLIST idl=SHBrowseForFolder(&bi); T8g\_m
if(idl==NULL) Ot47.z
return; r@r*|50
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); ^(+q1O'
str.ReleaseBuffer(); cOdRb=?9
m_Path=str; b1#C,UWK
if(str.GetAt(str.GetLength()-1)!='\\') rAHP5dx:
m_Path+="\\"; p({@t=L3g
UpdateData(FALSE); sdO8;v>
} p: z][I
#Swc>jYc
void CCaptureDlg::SaveBmp() r3' DXP
{ ?F]P=S:x
CDC dc; Xux[
dc.CreateDC("DISPLAY",NULL,NULL,NULL); |(Wwh$
CBitmap bm; *V:U\G
int Width=GetSystemMetrics(SM_CXSCREEN); XZ.D<T"
int Height=GetSystemMetrics(SM_CYSCREEN); iP9]b&
bm.CreateCompatibleBitmap(&dc,Width,Height); XYP
RMa?
CDC tdc; q
j21#q
.
tdc.CreateCompatibleDC(&dc); `.JW_F)1
CBitmap*pOld=tdc.SelectObject(&bm); }a!|n4|`
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); `T+>E0H(f
tdc.SelectObject(pOld); ;rT/gwg!
BITMAP btm; ]8 }2
bm.GetBitmap(&btm); tx[;& ;
DWORD size=btm.bmWidthBytes*btm.bmHeight; _I; hM
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); \,/ozfJ7dT
BITMAPINFOHEADER bih; rG~W=!bj
bih.biBitCount=btm.bmBitsPixel; B=]L%~xL$
bih.biClrImportant=0; /2T
W?a
bih.biClrUsed=0; \; '#8
bih.biCompression=0; d!T,fz/-.
bih.biHeight=btm.bmHeight; %K3U`6kHcd
bih.biPlanes=1; XQ[\K6X5
bih.biSize=sizeof(BITMAPINFOHEADER); ] H;E(1iU
bih.biSizeImage=size; @BnK C&{
bih.biWidth=btm.bmWidth; NVkYm+J#
bih.biXPelsPerMeter=0; -:d{x#
bih.biYPelsPerMeter=0; dL4VcUS.
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); 0B9FPpx? :
static int filecount=0; .4E24FB[f?
CString name; : 9(kU
name.Format("pict%04d.bmp",filecount++); \6a' p
Q,
name=m_Path+name; rU9")4sQ
BITMAPFILEHEADER bfh; PO'K?hVS^w
bfh.bfReserved1=bfh.bfReserved2=0; lGp:rw`
bfh.bfType=((WORD)('M'<< 8)|'B'); {~51h}>b#
bfh.bfSize=54+size; L''VBY"?
bfh.bfOffBits=54; S6bYd`
CFile bf; <