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:
DrR@n~
CY1Z' 一、实现方法
vt8By@]: Z~CjA%l 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:
m@c)Xci XZ7Lk)IR #pragma data_seg("shareddata")
TDh5lI
HHOOK hHook =NULL; //钩子句柄
\~W'v3:W UINT nHookCount =0; //挂接的程序数目
?
k /` static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
A&VG~r$ static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
SU0
hma8 static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
%v|B * static int KeyCount =0;
DVA:Cmh\ static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
G[=c
Ss, #pragma data_seg()
uFE)17E /xhKd]Q 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。
Da|z"I
x }7Uoh(d 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:
rp$'L7lrX Y4-t7UlS; BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
-f .,tM= cKey,UCHAR cMask)
;uJMG {
It(_v BOOL bAdded=FALSE;
(=0.in Z for(int index=0;index<MAX_KEY;index++){
;l+Leex
if(hCallWnd[index]==0){
&d!GImcxQ hCallWnd[index]=hWnd;
9;{CIMg& HotKey[index]=cKey;
IxU/?Zm HotKeyMask[index]=cMask;
4x34u}l bAdded=TRUE;
W\3X=@|u) KeyCount++;
9*gZ-# break;
0J9x9j`&j }
jcOcWB| }
HJ"GnZp< return bAdded;
';CNGv - }
pBHRa?Y5 //删除热键
SUiOJ[5, BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
(`^1Y3&2 {
}2jn[${ pr BOOL bRemoved=FALSE;
e'~3oqSvR for(int index=0;index<MAX_KEY;index++){
dO'(2J8 if(hCallWnd[index]==hWnd){
?uu*L6 if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
Dt@SqX:~Ee hCallWnd[index]=NULL;
kiEa<-] HotKey[index]=0;
Jy)/%p~ HotKeyMask[index]=0;
Gc?a +T bRemoved=TRUE;
3";q[&F9y KeyCount--;
4#D,?eA7 break;
5P2K5,o|n~ }
cAw/I@jG }
4W75T2q# }
wYea\^co return bRemoved;
z{q`G wW }
KNl$3nX ~%oR[B7=| P55fL-vo|} DLL中的钩子函数如下:
HS$r8`S?) :FF=a3/"6 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
P}iE+Z3 {
[E_9V%^ BOOL bProcessed=FALSE;
bA 2pbjg= if(HC_ACTION==nCode)
Z+SRXKQ {
S:}7q2: if((lParam&0xc0000000)==0xc0000000){// 有键松开
'u658Tj switch(wParam)
~DWl s. {
#yen8SskB case VK_MENU:
ZCw]m#lS MaskBits&=~ALTBIT;
KvSG; break;
xw%0>K[ case VK_CONTROL:
bt *k.=p MaskBits&=~CTRLBIT;
`oJ [u:b break;
pAEx#ck case VK_SHIFT:
t^HRgY'NjM MaskBits&=~SHIFTBIT;
;S{(]K7i break;
U*:!W=XN default: //judge the key and send message
'qi}|I break;
9Flb|G% }
6@o*xK7L for(int index=0;index<MAX_KEY;index++){
8t`?#8D} if(hCallWnd[index]==NULL)
8MBAtVmy continue;
|{;G2G1[ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
:,^gj {
c,22*.V/ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
0V]s:S bProcessed=TRUE;
J1kM\8%b\ }
]4{H+rw }
u-TUuP }
,Q,^3*HX9} else if((lParam&0xc000ffff)==1){ //有键按下
hph4 `{T switch(wParam)
Jwp7gYZ {
CARzO7b\w case VK_MENU:
Qd6F H2Pl MaskBits|=ALTBIT;
5;S.H#YOpO break;
':W[ A case VK_CONTROL:
] - .aL MaskBits|=CTRLBIT;
7rA;3?p) break;
&~!Wym case VK_SHIFT:
/bEAK- MaskBits|=SHIFTBIT;
r/sNrB1U"y break;
J;%Xfx] default: //judge the key and send message
8f7>?BUS, break;
7|D +Ihy; }
{t!!Uz 7 for(int index=0;index<MAX_KEY;index++){
b\ PgVBf9 if(hCallWnd[index]==NULL)
V:27)]q continue;
[2koe.?( if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
jIF
|P- {
B:QHwzd SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
Q^I\cAIB bProcessed=TRUE;
-DCbko }
<X5fUU"+U }
h1{3njdr }
H:G1BZjq if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
5coZ|O&f8 for(int index=0;index<MAX_KEY;index++){
a:S - if(hCallWnd[index]==NULL)
PzGWff!*n continue;
vI]N^j2% if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
b6 M SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
v
LZoa-w: //lParam的意义可看MSDN中WM_KEYDOWN部分
QM]YJr3rE }
}&e5$lB }
Bj~+WwD)QR }
EzIGz[ return CallNextHookEx( hHook, nCode, wParam, lParam );
xm@_IL&P }
`XB
9Mi= ;>YzEo 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
L6LZC2N+2 :aQt;C6Z> BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
Wm3X[?V BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
p$>l7?h q]M0md 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:
`@
FYkH AK#1]i~ LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
Lxk[;j+ {
B]$GSEB if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
+]50D xflA {
:h V7>
rr //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
P2*<GjV`S/ SaveBmp();
##o#eZq:" return FALSE;
42{:G8 }
1r7y]FyH$ …… //其它处理及默认处理
+@:x!q|^ }
eN~=*Mn(za 6x|jPb 5 BJmA2L 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。
->{KVPHe{ S[T8T|_ 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。
Z`BK/:vo3H 65m"J' 二、编程步骤
fg{n(TE"8 u?{H}V 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";
vA.MRu# vI)LB)Q 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
Uv~QUL3> ^<-+@v* 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;
w8D"CwS1Rx ',4iFuY 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;
50C 0,8okAH 5、 添加代码,编译运行程序。
j9OG\m uL/m u< 三、程序代码
XEZF{lP 0k(a VkZ I ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
9]wN Bd #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
P_p<`sC9 #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
E1U",CMU #if _MSC_VER > 1000
Gm.]sE?. #pragma once
9,'ncw$/C #endif // _MSC_VER > 1000
yqiq,=OvP #ifndef __AFXWIN_H__
H ?y,ie#u #error include 'stdafx.h' before including this file for PCH
Q( {
r@*g #endif
0tB0@Wj #include "resource.h" // main symbols
h.s+)fl\ class CHookApp : public CWinApp
(41|'eB\\ {
9Ly]DZ;L public:
L4|`;WP CHookApp();
usL*
x9i // Overrides
Z} r*K% // ClassWizard generated virtual function overrides
.JiziFJ@mj //{{AFX_VIRTUAL(CHookApp)
h_IDO% public:
'xg
Lt( virtual BOOL InitInstance();
1!T1Y,w virtual int ExitInstance();
u21EP[[, //}}AFX_VIRTUAL
M$8^91%4B //{{AFX_MSG(CHookApp)
I[##2 // NOTE - the ClassWizard will add and remove member functions here.
l9u!aD // DO NOT EDIT what you see in these blocks of generated code !
EJ:%}HhA //}}AFX_MSG
\3aoM{ztD DECLARE_MESSAGE_MAP()
)Z ?Ym.0/ };
.oUTqki LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
?+a,m# Yx BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
FfPar:PHj BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
spPNr BOOL InitHotkey();
&,CiM0 BOOL UnInit();
28J^DMOW #endif
qd)/9*|Jl I \[_9 //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
:'l^kSP_*C #include "stdafx.h"
D"?fn<2 #include "hook.h"
$ ,}E #include <windowsx.h>
9!}8UALD #ifdef _DEBUG
~`\?"s: #define new DEBUG_NEW
usCt#eZK #undef THIS_FILE
g^{@'}$ static char THIS_FILE[] = __FILE__;
lqZ 5?BD1 #endif
ZR?yDgL #define MAX_KEY 100
ft KTnK. #define CTRLBIT 0x04
$m1z-i;/ #define ALTBIT 0x02
&*G#H~\ #define SHIFTBIT 0x01
IrhA+)pdse #pragma data_seg("shareddata")
iQ
fJ HHOOK hHook =NULL;
~SF<,-Kg UINT nHookCount =0;
lXiKY@R# static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
,>-< (Qi static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
4^~(Mh- Mw static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
TQ*1L:X7M& static int KeyCount =0;
/1Q(b static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
jWl)cC #pragma data_seg()
xt%7@/hiE HINSTANCE hins;
C=It* j55 void VerifyWindow();
+hT:2TXn BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
ruzspS //{{AFX_MSG_MAP(CHookApp)
M)N?qRD // NOTE - the ClassWizard will add and remove mapping macros here.
TDNQu_E // DO NOT EDIT what you see in these blocks of generated code!
5b[jRj6 //}}AFX_MSG_MAP
O8u j`G 9 END_MESSAGE_MAP()
D+z?wuXk cmg^J
CHookApp::CHookApp()
T'&I{L33Y {
I`LuRlw
// TODO: add construction code here,
Jjv=u // Place all significant initialization in InitInstance
5sJJGv#6 }
ac.Ms (D k
|%B?\m CHookApp theApp;
F\k+[`%{ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
qX
{
?yR&/a BOOL bProcessed=FALSE;
9;Ox;;w if(HC_ACTION==nCode)
ur@Z|5 {
Mt5PaTjj if((lParam&0xc0000000)==0xc0000000){// Key up
:^x?2%
~K. switch(wParam)
dJ""XaHqf {
&2zq%((r case VK_MENU:
Qj6/[mUr~ MaskBits&=~ALTBIT;
e9[|!/./5 break;
ANSFdc case VK_CONTROL:
:WL'cJ9a MaskBits&=~CTRLBIT;
FE!lok break;
`zXO_@C case VK_SHIFT:
q]N:Tpm9 MaskBits&=~SHIFTBIT;
HnCzbt@ break;
)
^3avRsC default: //judge the key and send message
P(73!DT+ break;
P7MeX(Tay }
}HYjA4o\A for(int index=0;index<MAX_KEY;index++){
_({A\}Q| if(hCallWnd[index]==NULL)
{aJJ`t continue;
(B-43!C if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
9*=W- v {
-!L"') SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
QZhjb bProcessed=TRUE;
6]pX>Xho }
T%n2$ }
Xy &uZ }
<u:WlaS else if((lParam&0xc000ffff)==1){ //Key down
&o97u4xi switch(wParam)
TkO[rAC {
b-*3 2Y% case VK_MENU:
lmSo8/%T MaskBits|=ALTBIT;
t2iv(swTe break;
yxq}QSb \3 case VK_CONTROL:
STw#lU) %( MaskBits|=CTRLBIT;
\7
NpT}dj break;
^F"iP7 case VK_SHIFT:
-+em!g' MaskBits|=SHIFTBIT;
4r0b)Y&I break;
g@Qgxsyk> default: //judge the key and send message
D^;*U[F? break;
zb
Z4|_ }
.pvV1JA' for(int index=0;index<MAX_KEY;index++)
wgRsZ {
7 +@qB]Bi< if(hCallWnd[index]==NULL)
K[7EOXLy continue;
I;?X f if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
.+([ {
`H3.,] SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
<JwX_\?ln bProcessed=TRUE;
08m;{+|vY }
^Mk%z9
? }
*VkgQ`c }
\OpoBXh if(!bProcessed){
m G1IQ! for(int index=0;index<MAX_KEY;index++){
]k8/#@19 if(hCallWnd[index]==NULL)
Kw`VrcwjT continue;
R,
8s_jN if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
/)rkiwp SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
f0LP?] }
<d7V<&@o= }
9=/N|m8. }
)P>u9=?,=E return CallNextHookEx( hHook, nCode, wParam, lParam );
N6[i{;K@N{ }
,s^<X85gp\ M'1!<a-Mp BOOL InitHotkey()
=N|kn<h4 {
jAsO8 if(hHook!=NULL){
?oiKVL"7 nHookCount++;
jRpdft return TRUE;
www`=)A; }
s/1 #DM" else
8S;CFyT\n hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
b r,+45: if(hHook!=NULL)
m$$?icA nHookCount++;
fH8!YQG8$ return (hHook!=NULL);
Ld|V^9h1; }
^Dx#7bsDZR BOOL UnInit()
G7* h{nE {
!@
YXZ if(nHookCount>1){
;</Twm;: nHookCount--;
'?Iif#Z1 return TRUE;
a1MFjmq }
czBi Dk4 BOOL unhooked = UnhookWindowsHookEx(hHook);
oaDsk<(j;R if(unhooked==TRUE){
<2P7utdZ nHookCount=0;
j:1uP^. hHook=NULL;
3,.%
s }
+EAS Aq return unhooked;
%TK&)Q% h5 }
w&lZ42(mF f(u&XuZ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
CJqc\I~ {
F1A1@{8bN BOOL bAdded=FALSE;
~r`Wr`]_ z for(int index=0;index<MAX_KEY;index++){
;WI]vn if(hCallWnd[index]==0){
'.p? 6k!K hCallWnd[index]=hWnd;
&P n] HotKey[index]=cKey;
6d{j0?mM HotKeyMask[index]=cMask;
!z=pP$81 bAdded=TRUE;
]R Mb,hJ KeyCount++;
|ft:|/^F& break;
d~[UXQC }
0MpS4tW0= }
XN;/nU return bAdded;
?*K<*wBw# }
b]`^KTYK aW@oE
~` BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
VBx,iuaw {
&`PbO BOOL bRemoved=FALSE;
YkbO&~. for(int index=0;index<MAX_KEY;index++){
b|E/LKa if(hCallWnd[index]==hWnd){
YY!!<2_ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
=QiT)9q) hCallWnd[index]=NULL;
nO@+s
F HotKey[index]=0;
sfC@*Y2XT HotKeyMask[index]=0;
h>tsis'N9 bRemoved=TRUE;
y#r\b6 KeyCount--;
cMtJy"kK break;
/'Bdq?!B& }
ype"7p\ }
Q2$/e+ }
*eoq=,O return bRemoved;
{Pvr??"r }
#wD7 \X-f sWW\bK0B4 void VerifyWindow()
Heohe|an {
J/gQQ.s for(int i=0;i<MAX_KEY;i++){
7NUenCdc if(hCallWnd
!=NULL){ ,^!Zm^4,
if(!IsWindow(hCallWnd)){ 9rWLE6`
hCallWnd=NULL; I~'gK8<e7
HotKey=0; _6J<YQK
HotKeyMask=0; DoTs9w|5
KeyCount--; bN4d:0 Y
} zCM^r <Kr
} ty9rH=1
} 5#BF,-Jv
} 0.(zTJ
3v G
BOOL CHookApp::InitInstance() U!_sh<
{ Q{`@
G"'
AFX_MANAGE_STATE(AfxGetStaticModuleState()); 4Z],+?.[
hins=AfxGetInstanceHandle(); ZG!x$yi$
InitHotkey(); _=)!xnYf
return CWinApp::InitInstance(); F1/6&u9I
} =sL(^UISl
cy9N:MR(c
int CHookApp::ExitInstance() Bac?'ypm
{ `$f\ %
VerifyWindow(); JPHUmv6
UnInit(); 2}GKHC
return CWinApp::ExitInstance(); a_xQ~:H
} O5c_\yv=
uFMs^^#
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file o&WRta>VP
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) J,MT^ B
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ wYC9~ms-
#if _MSC_VER > 1000 x0y%\
#pragma once =H
L9Z
#endif // _MSC_VER > 1000 7^`RP e^a+
p, !1 3X
class CCaptureDlg : public CDialog axHxqhO7zp
{ 5ENov!$H
// Construction C+}CU}
public: cq-e
c7
BOOL bTray; Qf/j:
BOOL bRegistered; Rs`Vr_?Hk
BOOL RegisterHotkey(); ^[k6]1h
UCHAR cKey; 7
3H@kf
UCHAR cMask; 3 (Gygq#
void DeleteIcon(); 2l]C55p)s
void AddIcon(); ^xBb$
UINT nCount; FjK Ke7
void SaveBmp(); X20<r?^,,
CCaptureDlg(CWnd* pParent = NULL); // standard constructor 1c1e+H
// Dialog Data sE(X:[Am
//{{AFX_DATA(CCaptureDlg) (!^N~ =e;
enum { IDD = IDD_CAPTURE_DIALOG }; \JF57t}Zk
CComboBox m_Key; Lh8#I&x
BOOL m_bControl; s?1-$|*
BOOL m_bAlt; ]9!Gg
BOOL m_bShift; +_vm\]4
CString m_Path; gDUoc*+h
CString m_Number; tSw~_s_V
//}}AFX_DATA 3|z;K,`Fw
// ClassWizard generated virtual function overrides Y9lbf_51
//{{AFX_VIRTUAL(CCaptureDlg) )o}=z\M-bN
public: [kU[}FT
virtual BOOL PreTranslateMessage(MSG* pMsg); S1 R #]
protected: :$) aMEq
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support b*$o[wO9
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); =}6Z{}(TT
//}}AFX_VIRTUAL tPMgZ
// Implementation 8.
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protected: }b\ipA,~
HICON m_hIcon; -h.3M0
// Generated message map functions ]c~ rPi
//{{AFX_MSG(CCaptureDlg) 'h+4zvI"8
virtual BOOL OnInitDialog(); PhI{3B/
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); PdE)m/
afx_msg void OnPaint(); 9h)P8B.>M
afx_msg HCURSOR OnQueryDragIcon(); !*$'fn'bAA
virtual void OnCancel(); )gm \e?^
afx_msg void OnAbout(); d,E/9y\e
afx_msg void OnBrowse(); s^x ,S
afx_msg void OnChange(); +O%a:d%
//}}AFX_MSG yp7,^l
DECLARE_MESSAGE_MAP() |7 W6I$Xl
}; >goAf`sqo
#endif &~f*q?xR
:O_<K&
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file Zzzi\5&gU
#include "stdafx.h" TBLk+AR
#include "Capture.h"
=z7Ay
#include "CaptureDlg.h" \H'CFAuF
#include <windowsx.h> =,1zl}PR
#pragma comment(lib,"hook.lib") I.n{ "=$B@
#ifdef _DEBUG ZYp-dlEXq
#define new DEBUG_NEW { /Q?
#undef THIS_FILE OAQ O J'
static char THIS_FILE[] = __FILE__; P^W$qy|
#endif ?}>B4Z)
#define IDM_SHELL WM_USER+1 E`LIENm
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); f0s<Y
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); c`[uQXv
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; [8(9.6f
class CAboutDlg : public CDialog bJ5z??
{ MjeI?k}LJ
public: h4xf%vA(;
CAboutDlg();
OCoRcrAx
// Dialog Data %QcG^R
//{{AFX_DATA(CAboutDlg) OKH~Y-%<
enum { IDD = IDD_ABOUTBOX }; lbXkZ ,
//}}AFX_DATA G"R>a w
// ClassWizard generated virtual function overrides in|7ucSlg
//{{AFX_VIRTUAL(CAboutDlg) BN>$LL
protected: \7?MUa.4
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support Bwvc@(3v
//}}AFX_VIRTUAL !ES#::;z?
// Implementation WX$^[^=HC
protected: u+T, n
//{{AFX_MSG(CAboutDlg) $ }bC$?^
//}}AFX_MSG \.-y
LS.
DECLARE_MESSAGE_MAP() ].+G-<.:
}; _ r)hr7
p{QKj3ov
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) ?ew]i'9(
{ ^bw~$*"j#
//{{AFX_DATA_INIT(CAboutDlg)
x a,LV
//}}AFX_DATA_INIT CUM~*
} .VV!$;
FB
2xxwQwg8
void CAboutDlg::DoDataExchange(CDataExchange* pDX) s,q!(\{Pv
{ B{u.Yc:
CDialog::DoDataExchange(pDX); v~=ol8J
B
//{{AFX_DATA_MAP(CAboutDlg) &3/H
P)*<]
//}}AFX_DATA_MAP `I<|*vW
u
} E8 )*HOT_T
fxa^SV
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) FA GVpO[
//{{AFX_MSG_MAP(CAboutDlg) (G;*B<|A
// No message handlers FCAu%lvZT
//}}AFX_MSG_MAP _!vbX
mb
END_MESSAGE_MAP() Za?&\
?*dx=UI
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) j>M%?Tw
: CDialog(CCaptureDlg::IDD, pParent) >QPS0Vx[
{ c9k,Dc
//{{AFX_DATA_INIT(CCaptureDlg) q+Q)IVaU81
m_bControl = FALSE; h2snGN/{Hb
m_bAlt = FALSE; W%:zvqg
v
m_bShift = FALSE; 7 {<lH%Tn
m_Path = _T("c:\\"); 4h(Hy&1C
m_Number = _T("0 picture captured."); :.^rWCL2
nCount=0; q>Y[.c-
bRegistered=FALSE; "+_0idpF
bTray=FALSE; ;I'["k%
//}}AFX_DATA_INIT n&JP/P3Y
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 BW[K/l~"$:
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); $Q4b~
} ^)I:82"|?
Aed"J5[a
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) %m`QnRX?D
{ =)LpMTz
CDialog::DoDataExchange(pDX); =7>~u
//{{AFX_DATA_MAP(CCaptureDlg) st>t~a|T
DDX_Control(pDX, IDC_KEY, m_Key); >Fh@:M7z
DDX_Check(pDX, IDC_CONTROL, m_bControl); Ckp=d
DDX_Check(pDX, IDC_ALT, m_bAlt); p
IToy;]
DDX_Check(pDX, IDC_SHIFT, m_bShift); /|f]L9)2<
DDX_Text(pDX, IDC_PATH, m_Path); b iD7(AK
DDX_Text(pDX, IDC_NUMBER, m_Number); h'+ swPh
//}}AFX_DATA_MAP 9OBPFF
} )2S\:&x
:h@:F7N _
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) he #iWD'
//{{AFX_MSG_MAP(CCaptureDlg) J^cDa|j
ON_WM_SYSCOMMAND() w93,N+es6
ON_WM_PAINT() FqfeH_-U
ON_WM_QUERYDRAGICON() G 2##M8:U0
ON_BN_CLICKED(ID_ABOUT, OnAbout) (XQG"G%U6W
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) so*7LM?ib>
ON_BN_CLICKED(ID_CHANGE, OnChange) VTU-'q
//}}AFX_MSG_MAP {H74`-C)W
END_MESSAGE_MAP()
Nnw iH
\=JKeL|6[S
BOOL CCaptureDlg::OnInitDialog() "rtmDNpL
{ a/1{tDA
CDialog::OnInitDialog(); NbdaP{{
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); 'Tn$lh
ASSERT(IDM_ABOUTBOX < 0xF000); be_t;p`3
CMenu* pSysMenu = GetSystemMenu(FALSE); o9CB
,c7]
if (pSysMenu != NULL) _
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{ Y`wi=(
CString strAboutMenu; (`&g
strAboutMenu.LoadString(IDS_ABOUTBOX); #oaX<,
if (!strAboutMenu.IsEmpty()) " 1Bn/Q
{ > 01k
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pSysMenu->AppendMenu(MF_SEPARATOR); &AzA0r&,
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); Kxq~,g=t
} 8m iIlB
} |<E%hf
SetIcon(m_hIcon, TRUE); // Set big icon E?V:dr
SetIcon(m_hIcon, FALSE); // Set small icon B*{CcQ<5
m_Key.SetCurSel(0); $ _zdjzT
RegisterHotkey(); S}>rsg!
CMenu* pMenu=GetSystemMenu(FALSE); p8Pvctc
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); \(Iy>L.
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); n`6vM4rM)
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); )gE:@3
return TRUE; // return TRUE unless you set the focus to a control rl4-nA
} !cfn%+0
tw;`H( UZ^
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) B;EdLs}
{ Tsa&R:SE
if ((nID & 0xFFF0) == IDM_ABOUTBOX) h5~tsd}OU
{ jYU#]
|k~
CAboutDlg dlgAbout; TOQvZ?_
dlgAbout.DoModal(); ]LD@I;(_
} PS>k67sI
else b*$^8%
{ zU(U^
CDialog::OnSysCommand(nID, lParam); doG&qXw
} &AW?!rH
} *p
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~(}zp<e|
void CCaptureDlg::OnPaint() xX}vxhN
{ 67d0JQTu
if (IsIconic()) AE@*#47
{ J6jrtLh
CPaintDC dc(this); // device context for painting &0M^UvO
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); mgS%YG
// Center icon in client rectangle B;^7Yu0,
int cxIcon = GetSystemMetrics(SM_CXICON); n*U1
M
int cyIcon = GetSystemMetrics(SM_CYICON); Nhs]U`s(g
CRect rect; r3#H]c
GetClientRect(&rect); Fe:0nr9;
int x = (rect.Width() - cxIcon + 1) / 2; 0LxA+
int y = (rect.Height() - cyIcon + 1) / 2; w+PbT6;
// Draw the icon i4AmNRs
dc.DrawIcon(x, y, m_hIcon); hb`(d_= 7F
} Si!W@Jm
else \3x,)~m
{ 9;kWuP>k4u
CDialog::OnPaint(); -]HO8}-Rjs
} ?mnwD ]u
} &`{%0r[UD#
Jo_h?{"L{
HCURSOR CCaptureDlg::OnQueryDragIcon() (Zx;GS
{ SxNs
return (HCURSOR) m_hIcon; e%#9|/uP
} 3Cq17A 9
;DBO
void CCaptureDlg::OnCancel() .F&\xa{
{ p\~ lPXK
if(bTray) 27}k63 \
DeleteIcon(); $wAVM/u&
CDialog::OnCancel(); IKH#[jW'IB
} @zW'!Ol
1P@&xcvS\
void CCaptureDlg::OnAbout() O]90F
{ Z'hW;^e%_z
CAboutDlg dlg; e=QnGT*b5
dlg.DoModal(); ~"iCx+pr
} K>"M#T
x4Y+?2
void CCaptureDlg::OnBrowse() N_U Zu
{ M n3cIGL
CString str; 4L(axjMYU
BROWSEINFO bi; _\1wLcFj
char name[MAX_PATH]; KzG8K 6wZ
ZeroMemory(&bi,sizeof(BROWSEINFO)); ;a*i*{\Rm
bi.hwndOwner=GetSafeHwnd(); 5JBenTt
bi.pszDisplayName=name; 1)X%n)2pr
bi.lpszTitle="Select folder"; &Dgho
bi.ulFlags=BIF_RETURNONLYFSDIRS; ehoDWO]S
LPITEMIDLIST idl=SHBrowseForFolder(&bi); Nj@k|_1
if(idl==NULL) [j`It4^nC
return; ~ucOQVmz@
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); dyC: Mko=
str.ReleaseBuffer(); w$u=_
m_Path=str; T4F}MVK
if(str.GetAt(str.GetLength()-1)!='\\') j]6Z*AxQ
m_Path+="\\"; b`usRoD{+
UpdateData(FALSE); k:nr!Y<
} r=~yUT
9N:Bu'j&/
void CCaptureDlg::SaveBmp() &gw. &/t
{ !-m(1
CDC dc; O$V
6QJ
dc.CreateDC("DISPLAY",NULL,NULL,NULL); tz4MT_f
CBitmap bm; F<M#T
int Width=GetSystemMetrics(SM_CXSCREEN); qH: `
O%,
int Height=GetSystemMetrics(SM_CYSCREEN); h7)^$Hd
bm.CreateCompatibleBitmap(&dc,Width,Height); T2AyQ~5~
CDC tdc; }5z6b>EI9a
tdc.CreateCompatibleDC(&dc);
FVPhk 2
CBitmap*pOld=tdc.SelectObject(&bm); @0; 9.jml,
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); 8$io^n\i
tdc.SelectObject(pOld); hc4<`W{
BITMAP btm; 3J7TWOJVw
bm.GetBitmap(&btm); bc}U &X<
DWORD size=btm.bmWidthBytes*btm.bmHeight; . p^='Kz?
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); :z_D?UQ
BITMAPINFOHEADER bih; #I'W[\l~+
bih.biBitCount=btm.bmBitsPixel; mnzamp
bih.biClrImportant=0; Cg
|_) _w
bih.biClrUsed=0; +y! dU{L^
bih.biCompression=0; j7K9T
bih.biHeight=btm.bmHeight; fIu5d6;'
bih.biPlanes=1; DN2K4%cM%'
bih.biSize=sizeof(BITMAPINFOHEADER); s4<[f%^
bih.biSizeImage=size; 'ejuzE9
bih.biWidth=btm.bmWidth;
Z3<>Z\6D
bih.biXPelsPerMeter=0; AyB-+oTf(
bih.biYPelsPerMeter=0; ;nyV)+t+a
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); b8P/9D7K?
static int filecount=0; zW,m3~XX:
CString name; };o6|e:2E
name.Format("pict%04d.bmp",filecount++); zm-j FY ?
name=m_Path+name; %*wJODtB|
BITMAPFILEHEADER bfh; TG8QT\0G
bfh.bfReserved1=bfh.bfReserved2=0; ^0_ *AwIcN
bfh.bfType=((WORD)('M'<< 8)|'B'); s3HwBA
bfh.bfSize=54+size; }{[H@uhjH
bfh.bfOffBits=54; M=HW2xn
CFile bf; +Pd&YfU9
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ Q#wASd.
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); B q+RFo
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); VO] Jvf
bf.WriteHuge(lpData,size); LzB)o\a
bf.Close(); Tw/kD)u{
nCount++; UK*+EEv
} C'4u+raq
GlobalFreePtr(lpData); TOdH
if(nCount==1) <mjH#aSy
m_Number.Format("%d picture captured.",nCount); []/=!?5B
else pg1o@^OuL
m_Number.Format("%d pictures captured.",nCount); C18pK8-
UpdateData(FALSE); mf=, 6fx28
} 8W)3rD>
JP)/
O!
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) #Z;ziM:
{ @a#qq`b;
if(pMsg -> message == WM_KEYDOWN) %Rj:r!XB:
{ [wG?&l$.KB
if(pMsg -> wParam == VK_ESCAPE) $6}siU7s4
return TRUE; `e .;P
if(pMsg -> wParam == VK_RETURN) M7^PWC
return TRUE; H_sLviYLu
} 0kS[`a(}J
return CDialog::PreTranslateMessage(pMsg); rVowHP
} 9a 9<I
%Js3Y9AL C
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) ;29q
{ I gcVl/d
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ e;~[PYeu
SaveBmp(); x^^;/%p
return FALSE; A^
$9[_
} zB/$*Hd
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ xfCq;?MupW
CMenu pop; hAi50q;z
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); AX}l~
sv
CMenu*pMenu=pop.GetSubMenu(0); 9-[g/qrF
pMenu->SetDefaultItem(ID_EXITICON); ]^$&Ejpe#
CPoint pt; A1e| Y
GetCursorPos(&pt); RKFj6u
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); ~j}di^<{
if(id==ID_EXITICON) ^$f}s,09
DeleteIcon(); jCqs^`-
else if(id==ID_EXIT) [_*%
OnCancel(); J@C8;]
return FALSE; '<5Gf1 @|
} ^eQK.B(
LRESULT res= CDialog::WindowProc(message, wParam, lParam); 3ddH@Y|
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) He}qgE>Us
AddIcon(); yz8ZY,9
return res; Rd|};-
} W=41jw
(.4mX
t
void CCaptureDlg::AddIcon() +Rn]6}5m\
{ w^e<p~i!^E
NOTIFYICONDATA data; F?&n5