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:
$=.%IJ_MAz
?L0;,
\-t 一、实现方法
T*/I4" r{.pXf 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
j;.P B}TY+@ #pragma data_seg("shareddata")
i6HRG\9nU HHOOK hHook =NULL; //钩子句柄
~qqxHymc UINT nHookCount =0; //挂接的程序数目
k{mBG9[z static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
3*I\#Z4p1 static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
^gcB+ static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
bdWdvd: static int KeyCount =0;
xF{%@t static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
_h<rVcl!wX #pragma data_seg()
KNmU2-%l m+XHFU 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
?w(hPUd!2 D\5+2 G DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
7R6B}B?/ n5C,Z!)z BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
#Gi`s?
cKey,UCHAR cMask)
`T*Y1@FV {
x(HHy, BOOL bAdded=FALSE;
cRs.@U\{R\ for(int index=0;index<MAX_KEY;index++){
</;e$fh` if(hCallWnd[index]==0){
.hH_1Mo8 hCallWnd[index]=hWnd;
l1T`[2 HotKey[index]=cKey;
Y0g]-B HotKeyMask[index]=cMask;
oIO@# bAdded=TRUE;
b\JU%89 KeyCount++;
)yyH_Ax2 break;
[lML^CYQ }
ZY,$oFdsi }
'l(s)Oa{M: return bAdded;
zI[<uvxzW` }
/lR*ab //删除热键
8a*&,W BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
1av#u:jy~> {
*jhgCm BOOL bRemoved=FALSE;
'nPI
zK<v for(int index=0;index<MAX_KEY;index++){
=-Hhm($n if(hCallWnd[index]==hWnd){
.I~:j`K6 if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
WA2NjxYz hCallWnd[index]=NULL;
[q%`q`EG HotKey[index]=0;
\2;!} HotKeyMask[index]=0;
iA{q$>{8 bRemoved=TRUE;
*0" ojfVn KeyCount--;
]0T*#U/P break;
e'uC:O.u }
)w4U]inJ$" }
HlX~a:.7 }
3:xx:Jt return bRemoved;
<O=0 ^V }
l|
uiC%T Rw
`ezC#
[{2v} DLL中的钩子函数如下:
mTsyVji8 k~AtnI LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
i ZPNss {
F_0D)H)N@ BOOL bProcessed=FALSE;
h;vY=r- if(HC_ACTION==nCode)
IT:WiMDQ} {
CN(-Jd.b if((lParam&0xc0000000)==0xc0000000){// 有键松开
Ud+,/pE>FA switch(wParam)
/1Gmga5 {
m19\H case VK_MENU:
c/88|k MaskBits&=~ALTBIT;
JYj*.Q0 break;
e1XKlgl case VK_CONTROL:
tXA?[ S MaskBits&=~CTRLBIT;
\dU.#^ryp break;
9IXy96]]6 case VK_SHIFT:
8nBYP+t,e MaskBits&=~SHIFTBIT;
#Hr'plg
8 break;
z&0[F`U default: //judge the key and send message
&Ih }" break;
<_8bAO8\ }
<ot`0 for(int index=0;index<MAX_KEY;index++){
'y!qrmMRr if(hCallWnd[index]==NULL)
5|0/$ SWd* continue;
6p
}a! if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
+x{o {
>}f!. i SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
o]tfvGvU* bProcessed=TRUE;
,{G\-(\ }
R\ 8[6H }
##''d||u }
ZRYlm$C else if((lParam&0xc000ffff)==1){ //有键按下
YGPb8! switch(wParam)
Zgh~7Z/ {
" 4#&tNQ case VK_MENU:
.n+
;&5 MaskBits|=ALTBIT;
w=?nD6Xhz break;
k waZn~ case VK_CONTROL:
3|w$gG;Y MaskBits|=CTRLBIT;
;{0alhMZ break;
5cf?u3r!qJ case VK_SHIFT:
h0m5oV MaskBits|=SHIFTBIT;
6 8n ;#-X break;
7]Qxt%7/> default: //judge the key and send message
[)}P{y
[& break;
jA {BG_ }
M/Z$?nd_H for(int index=0;index<MAX_KEY;index++){
TU)Pi.Aa if(hCallWnd[index]==NULL)
@su<_m6' continue;
b]?5r)GK if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
C3^3< {
} *)l SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
&Y@),S9 bProcessed=TRUE;
SVwxK/Fci }
]r!|@AWrQ\ }
bBML +0a }
E>
pr})^w if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
Z] r9lC for(int index=0;index<MAX_KEY;index++){
+JG05h%' if(hCallWnd[index]==NULL)
k@%5P-e} continue;
$- ]G6r if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
du}HTrsC SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
\C~6
' //lParam的意义可看MSDN中WM_KEYDOWN部分
c}$>UhLe }
h{o,*QL }
`+(n+QS _ }
hj"JmF$m return CallNextHookEx( hHook, nCode, wParam, lParam );
kD+#| f }
Zs}h>$E5_B PW%ith1)< 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:
J
V}7c$_ 8IL5:7H8 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
v
-)<nox BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
<(TAA15Xol Ep;?%o ,G 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:
jTqJ(M}L indbg
d LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
@I1*b>X~< {
b(mZ/2,B if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
< ~CY?
{
4J`-&05O //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
L-U4
8 i SaveBmp();
E`HA0/ return FALSE;
c"knzB vy }
/|NyO+Io …… //其它处理及默认处理
c99|+i50 }
gO*Gf2AG 0=7Ud< _&q&ID 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。
@G#`uoD RB*z."
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。
R~A))4<%% 3ONW u 二、编程步骤
i@P=*lLD "Ltp]nCR 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";
&<#1G
u_ ,0HID:& 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
jX' pUO @|<nDd{2 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;
%vf;qVoA~ hiVDN"$$ 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;
WSeiW M7Z&t'= 5、 添加代码,编译运行程序。
(?uK aH%tD!%,o 三、程序代码
Dz.kJ_"Ro
NI:OL
///////////////////////////////////// Hook.h : main header file for the HOOK DLL
uCW}q.@4 #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
D5@}L$u #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
|@b|Q, #if _MSC_VER > 1000
c
3| Lk7Q #pragma once
ML$#&Z@
*7 #endif // _MSC_VER > 1000
j&.JAQ*2; #ifndef __AFXWIN_H__
Tf$> ^L #error include 'stdafx.h' before including this file for PCH
N0D5N(kH% #endif
+N B5Fd4 #include "resource.h" // main symbols
k-*k'S_ class CHookApp : public CWinApp
A ?~4Pe {
*WzPxQ_ public:
z-0
N/?x1 CHookApp();
t':*~b{V@7 // Overrides
70*yx?T V // ClassWizard generated virtual function overrides
]+^4Yq>2 //{{AFX_VIRTUAL(CHookApp)
{Xpjm6a7 public:
\(f82kv virtual BOOL InitInstance();
]Zay9jD}c- virtual int ExitInstance();
{az
LtTh //}}AFX_VIRTUAL
OB(~zUe.R //{{AFX_MSG(CHookApp)
DVs$3RL // NOTE - the ClassWizard will add and remove member functions here.
?|2m0~%V= // DO NOT EDIT what you see in these blocks of generated code !
m^0*k|9+G //}}AFX_MSG
?~}8^~3 DECLARE_MESSAGE_MAP()
3\<(!yY8 };
\n#l+R23 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
RC"xnnIJv BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
S=w ~bz,/ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
*0a7H$iQ(] BOOL InitHotkey();
\q-["W34 BOOL UnInit();
fB; o3!y #endif
}LIf]YK 9%P$e=Ui# //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
'+^XL6$L #include "stdafx.h"
8fWnKWbbjw #include "hook.h"
blbzh';0} #include <windowsx.h>
pek5P4W_ #ifdef _DEBUG
kc2E4i #define new DEBUG_NEW
{;UBW7{ #undef THIS_FILE
OH+2)X static char THIS_FILE[] = __FILE__;
z"sv,W #endif
3@;24X #define MAX_KEY 100
[.G~5%974 #define CTRLBIT 0x04
Q6X}R,KA1 #define ALTBIT 0x02
-Xgup,}? #define SHIFTBIT 0x01
<&M5#:u #pragma data_seg("shareddata")
[z}$G:s HHOOK hHook =NULL;
-cXVkH{ UINT nHookCount =0;
E&W4`{6K4 static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
.W-=V zWX static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
OHF:E44k static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
79lG~BGE static int KeyCount =0;
?0E-Lac= static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
"0"8Rp&V| #pragma data_seg()
=U~\iJ HINSTANCE hins;
Ce3
void VerifyWindow();
uUG &At BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
V SH64 //{{AFX_MSG_MAP(CHookApp)
FRE${~Xd // NOTE - the ClassWizard will add and remove mapping macros here.
?=Z0N&}[ // DO NOT EDIT what you see in these blocks of generated code!
H&ZsMML/% //}}AFX_MSG_MAP
'&xRb* END_MESSAGE_MAP()
ZcN%F)htm v".u#G'u CHookApp::CHookApp()
MES| iB {
I1Gk^wO // TODO: add construction code here,
0jefV*3qpB // Place all significant initialization in InitInstance
'-X913eG! }
j7&0ckN&G MdNV3:[ \ CHookApp theApp;
oxqD/fY LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
dG]s_lb9H {
5HbPS%^. BOOL bProcessed=FALSE;
Vuo 8[h> if(HC_ACTION==nCode)
{[B` q {
iuq%Q\0@w if((lParam&0xc0000000)==0xc0000000){// Key up
b{JxTT}03 switch(wParam)
Sh5SOYLz {
laFF/g;sRC case VK_MENU:
h|=&a0 MaskBits&=~ALTBIT;
J
9k~cz break;
! XNTk]! case VK_CONTROL:
h5#V,$ MaskBits&=~CTRLBIT;
le`_ break;
gI~jf- w case VK_SHIFT:
$3n@2 N` MaskBits&=~SHIFTBIT;
(kI@U![u break;
.7GAGMNS default: //judge the key and send message
?r6uEZ break;
fL1EQ) }
ze%)fZI0f for(int index=0;index<MAX_KEY;index++){
HV6'0_R0 if(hCallWnd[index]==NULL)
]O;Rzq{D( continue;
)%5T*}j if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
s*pgR=dZZ {
"Q@ZS2;A SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
!tD,phca~ bProcessed=TRUE;
{YgB?kt5 }
7_#i,|]58 }
=i)k@w_(x }
7^:0?Q else if((lParam&0xc000ffff)==1){ //Key down
3~!PJI1 switch(wParam)
R'r^v {
lF LiW case VK_MENU:
gobqS+c MaskBits|=ALTBIT;
Z66@@?` break;
S}*%l)vfR case VK_CONTROL:
@=[SsS MaskBits|=CTRLBIT;
)TcW.d6 break;
$r=Ud > case VK_SHIFT:
`5Qo*qx MaskBits|=SHIFTBIT;
Q:B : break;
@v,qfT*k7 default: //judge the key and send message
MoP0qNk break;
M 9b_Q }
:3Z"Qk$uR for(int index=0;index<MAX_KEY;index++)
fOyLBixR {
m<;&B if(hCallWnd[index]==NULL)
sf5koe continue;
az]S&\i7T if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
=' cr@[~i {
4RqOg1 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
DNaU
mz bProcessed=TRUE;
7L:$Amb_F }
;-d :!* }
OC]_b36v }
6!n%SUt if(!bProcessed){
b1;80P/:D for(int index=0;index<MAX_KEY;index++){
^4yFLqrC if(hCallWnd[index]==NULL)
GZ];U]_ continue;
daZY;_{"o if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
AT U
2\Y SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
=kvYE,,g_ }
WVf>>E^1 }
~l@SGHx }
AjZ@hid return CallNextHookEx( hHook, nCode, wParam, lParam );
JtU/%s }
i=<N4Vx b&Sk./
J6 BOOL InitHotkey()
bg)yliX {
9c1n if(hHook!=NULL){
DP NUm<> nHookCount++;
XoaB X2 return TRUE;
f&Bu_r }
of^N4 else
E0}jEl/{ hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
bd2"k;H<o if(hHook!=NULL)
`1KZ14K nHookCount++;
;o#R(m@Lx return (hHook!=NULL);
eRa1eRgP }
'7{0k{ BOOL UnInit()
!R WX1Z {
%fpcH if(nHookCount>1){
56m|gZcC nHookCount--;
$vdGkz@6 return TRUE;
!58-3F%P }
fO.gfHI BOOL unhooked = UnhookWindowsHookEx(hHook);
QP?Z+P< if(unhooked==TRUE){
qf9.S)H1Z nHookCount=0;
,bCPO`45 hHook=NULL;
9 frS!AQ }
9\i,3:Qc return unhooked;
q7wd9 6G: }
vpUS(ztvs VWG#v#o BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
n5%rsNxg {
x1$tS#lS BOOL bAdded=FALSE;
=1%3".
"n@ for(int index=0;index<MAX_KEY;index++){
Y2w 9]:J if(hCallWnd[index]==0){
'@Y@H, hCallWnd[index]=hWnd;
#oi4!%*M HotKey[index]=cKey;
UPPDs " HotKeyMask[index]=cMask;
a$FELlMv bAdded=TRUE;
t.>vLzrU KeyCount++;
Y=4 ,d4uu break;
;/SM^&Y }
K,^{|5'3q }
^c^9kK' return bAdded;
BRV /7ao=" }
-rlxxLT+ z$`=7 afp BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
s&M6DFlA {
d;(L@9HHD BOOL bRemoved=FALSE;
Ni{(=&*= for(int index=0;index<MAX_KEY;index++){
PS@`
=Z if(hCallWnd[index]==hWnd){
|]]Xee] if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
Zi2NgVF hCallWnd[index]=NULL;
TjlKy HotKey[index]=0;
e0*', HotKeyMask[index]=0;
ZV_Z)< bRemoved=TRUE;
h&5H`CR[ KeyCount--;
JMOQDo break;
dLal15Pb }
~c`@uGw }
![:S~x1 }
+?(2-RBd return bRemoved;
n4ce)N@ }
<<w $Ur zpIl'/i void VerifyWindow()
2:/' {
M&y!w
for(int i=0;i<MAX_KEY;i++){
V4 Pf?g if(hCallWnd
!=NULL){ xK0VWi
if(!IsWindow(hCallWnd)){ OHqLMBW!!
hCallWnd=NULL; FcsEv {#U
HotKey=0; = M7FD
HotKeyMask=0; Uz\B^"i|
KeyCount--; klKAwC Q,
} @
MNL
} )-[ 2vhXz
} ]ODC+q1
} _d]w)YMO
0;3;Rs
BOOL CHookApp::InitInstance() i,FG?\x@
{ _ts0@Z_:
AFX_MANAGE_STATE(AfxGetStaticModuleState()); netKt_
hins=AfxGetInstanceHandle(); RoLUPy9U
InitHotkey(); ]^&DEj{
return CWinApp::InitInstance(); <{YP=WYW
} hn.9j"
AzN.vA)q
int CHookApp::ExitInstance() \%EZg
{ :4<+)r26
VerifyWindow(); Fkz+Qz
UnInit(); R',|Jf=`
return CWinApp::ExitInstance(); YurK@Tq7
} |I7P0JqP
X`:(-3T
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file xp1
+C{
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) *WfOB2rU
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ {j,bV6X
#if _MSC_VER > 1000 2ADUJ
#pragma once %zd1\We
#endif // _MSC_VER > 1000
7l7eUy/z
.ymR%X_k
class CCaptureDlg : public CDialog *2 4P T7
{ \Q*3/_}G
// Construction f&ZxG,]Hi
public: >('L2]4\v
BOOL bTray; :{LVS
nG
BOOL bRegistered; GfJm&'U&
BOOL RegisterHotkey(); 0X0HDQ
UCHAR cKey; /zuU
UCHAR cMask; '7wI 2D
void DeleteIcon(); L,waQk / @
void AddIcon(); ^gH.5L0]gH
UINT nCount; phl5E:fIKx
void SaveBmp(); }^?dK3~q
CCaptureDlg(CWnd* pParent = NULL); // standard constructor 68Wm=j.m
// Dialog Data 6H VS0
//{{AFX_DATA(CCaptureDlg) W8yr06{]
enum { IDD = IDD_CAPTURE_DIALOG }; 2[9hl@=%
CComboBox m_Key; (~}yt .7K
BOOL m_bControl; 20zIO.&o
BOOL m_bAlt; B HoZ}1_
BOOL m_bShift; %9-).k
CString m_Path; =NF},j"
CString m_Number; {TzKHnP
//}}AFX_DATA ]J;^< 4l
// ClassWizard generated virtual function overrides ]! [ewO@
//{{AFX_VIRTUAL(CCaptureDlg) @a>+r1
public: KTBsH; 6
virtual BOOL PreTranslateMessage(MSG* pMsg); [ #A!B#`
protected: 6N~~:Gt
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support yXppu[=
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); ^%#v
AS
//}}AFX_VIRTUAL O jE wJ$$
// Implementation !z(POK
protected: bW3e*O$V
HICON m_hIcon; q'3=
// Generated message map functions =o{zw+|% %
//{{AFX_MSG(CCaptureDlg) ',kYZay
virtual BOOL OnInitDialog(); Xn$]DE/r}N
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); 4eBM/i
afx_msg void OnPaint(); ub+>i
afx_msg HCURSOR OnQueryDragIcon(); 0RYh4'=F
virtual void OnCancel(); SG8|xoL
afx_msg void OnAbout(); twNZ^=S Gr
afx_msg void OnBrowse(); 1-r1hZ-
afx_msg void OnChange(); ]8d]nftY
//}}AFX_MSG zJ3{!E}`v
DECLARE_MESSAGE_MAP() &Zd{ElM
}; m,Q<4'
#endif 2ztP'
bzk@6jR1
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file 1xL2f&bG
#include "stdafx.h" RQ9fA1YP
#include "Capture.h" JT[|l-\zo
#include "CaptureDlg.h" '<>pz<c
#include <windowsx.h> _s|C0Pt
#pragma comment(lib,"hook.lib") ~hE"B)
e
#ifdef _DEBUG V_Wv(G0-\
#define new DEBUG_NEW `-]*Qb+
#undef THIS_FILE f@[q# }6
static char THIS_FILE[] = __FILE__; ]*%0CDY6`N
#endif wcsUb9(
#define IDM_SHELL WM_USER+1 'Xxt[Jy
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); ,hT t]w
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); KNQX\-=
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; k/j]*~"
class CAboutDlg : public CDialog r<UZ\d -
{ Xv]O1 f cI
public: fk#SD "iJ
CAboutDlg(); 2o6KVQ
// Dialog Data ^Ml)g=Fq
//{{AFX_DATA(CAboutDlg) ;5PXPpJ
enum { IDD = IDD_ABOUTBOX }; FGzB7w#
//}}AFX_DATA $MfHA~^
// ClassWizard generated virtual function overrides S,n*1&ogj
//{{AFX_VIRTUAL(CAboutDlg) G9N6iKP!
protected: o" &7$pAh
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support XlV#)JX
//}}AFX_VIRTUAL lDCoYX_
// Implementation _j}|R(s*+V
protected: vtCt6M
//{{AFX_MSG(CAboutDlg) f lR6^6E
//}}AFX_MSG qg'RD]a> R
DECLARE_MESSAGE_MAP() ~>k<I:BtrT
}; 9,`WQ+OI
%%G2w63M
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) A%k@75V@
{ l<(MC R*
//{{AFX_DATA_INIT(CAboutDlg) |@sUN:G4k
//}}AFX_DATA_INIT Z8z.Xn
} Wf-i)oc4I
9K@`n:Rw
void CAboutDlg::DoDataExchange(CDataExchange* pDX) +Z/*=;
{ Cc$!TZq=
CDialog::DoDataExchange(pDX); {tOu+zy
//{{AFX_DATA_MAP(CAboutDlg) R',Q)<
//}}AFX_DATA_MAP Al5E
} rs]%`"&=
g&`e2|[7
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) #[qmhU{s
//{{AFX_MSG_MAP(CAboutDlg) =n
cu#T]
// No message handlers 8l~]}2LAs
//}}AFX_MSG_MAP ltwX-
END_MESSAGE_MAP() aiF7\^aw$
-ce N}Cb3
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) .Quu_S_vH
: CDialog(CCaptureDlg::IDD, pParent) i,8h
B(M!
{ ;8'hvc3i$
//{{AFX_DATA_INIT(CCaptureDlg) B~D{p t3y
m_bControl = FALSE; /[q6"R!uMz
m_bAlt = FALSE; z{]$WVs:^
m_bShift = FALSE; E<:XHjm
m_Path = _T("c:\\"); ?k TVC
m_Number = _T("0 picture captured."); }cn46L%/
nCount=0; `J'xVq#O
bRegistered=FALSE; *l)_&p
bTray=FALSE; ?S~HnIn
//}}AFX_DATA_INIT dPc*!xrq
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 %nSm 32/t3
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); r?nvJHP
} @mSdksB/L
X#EMmB!
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) ONH!ms(kb
{ AME3hA
CDialog::DoDataExchange(pDX); )^qM%k8
//{{AFX_DATA_MAP(CCaptureDlg) -+Axa[,5=
DDX_Control(pDX, IDC_KEY, m_Key); 9y{[@KG
DDX_Check(pDX, IDC_CONTROL, m_bControl); =3]}87
DDX_Check(pDX, IDC_ALT, m_bAlt); F=7X,hK
DDX_Check(pDX, IDC_SHIFT, m_bShift); 6NPCp/
DDX_Text(pDX, IDC_PATH, m_Path); MCZTeYnx
DDX_Text(pDX, IDC_NUMBER, m_Number); !g
#
//}}AFX_DATA_MAP jV2L;APCq
} "9'~6b
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BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) 5Ev9u),D+v
//{{AFX_MSG_MAP(CCaptureDlg) ] JVs/
ON_WM_SYSCOMMAND() 4/;hA
z
ON_WM_PAINT() jVC`38|
ON_WM_QUERYDRAGICON() 5=WzKM
ON_BN_CLICKED(ID_ABOUT, OnAbout) !_ZknZTT
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) Se.\wkl#Y
ON_BN_CLICKED(ID_CHANGE, OnChange) #k&"Rv;,
//}}AFX_MSG_MAP VCSHq&p8
END_MESSAGE_MAP() {F6>XuS=u
{Fs}8\ z
BOOL CCaptureDlg::OnInitDialog() Bi;D d?.
{ t~H'Ugv^
CDialog::OnInitDialog(); j]U sb_7
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); 29("gB
ASSERT(IDM_ABOUTBOX < 0xF000); 9^6E>S{=
CMenu* pSysMenu = GetSystemMenu(FALSE); QkS~~|0EI>
if (pSysMenu != NULL) m\o<a|
{ %X7R_>.
CString strAboutMenu; Y~gDS^8
strAboutMenu.LoadString(IDS_ABOUTBOX); d[E~}Dq3#
if (!strAboutMenu.IsEmpty()) }Qyuy~-&^
{ @}eEV[Lli
pSysMenu->AppendMenu(MF_SEPARATOR); +;^UxW
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); xP#vAR
} m5m}RWZ#
} B>Tfyo
SetIcon(m_hIcon, TRUE); // Set big icon UF0W%Z
SetIcon(m_hIcon, FALSE); // Set small icon ,n<t':-
m_Key.SetCurSel(0); 'n4Ro|kA
RegisterHotkey(); 'w3BSaJi
CMenu* pMenu=GetSystemMenu(FALSE); $0$'co"
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); B~+3<# B
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); O#LG$Y
n*
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); pRWEBd1U
return TRUE; // return TRUE unless you set the focus to a control $mdmuUIy-3
} R[KF${X4
zmH8^:-x
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) ?QxI2J
{ _&V%idz!0
if ((nID & 0xFFF0) == IDM_ABOUTBOX) &.XlXihnt
{ yHhx- `
CAboutDlg dlgAbout; Le;;Yd}f
dlgAbout.DoModal(); vT/e&8w
} 2-!OflkoM0
else Z/-9G
{ mApn[)?tv
CDialog::OnSysCommand(nID, lParam); Tzr_K
} qTSyy=
} ~tK4C |
Hdvtgss!
void CCaptureDlg::OnPaint() HYcLXh vgu
{ G>Fk
)
if (IsIconic()) \WS2g"(
{ }L
mhM
CPaintDC dc(this); // device context for painting !dnCrR
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); g)0>J
// Center icon in client rectangle
~o{GQ>
int cxIcon = GetSystemMetrics(SM_CXICON); eS#kDa/ %
int cyIcon = GetSystemMetrics(SM_CYICON); $HgBzZ7A2
CRect rect; x}\x3U
GetClientRect(&rect); krqz;q-p~
int x = (rect.Width() - cxIcon + 1) / 2; S!+c1q:
].
int y = (rect.Height() - cyIcon + 1) / 2; r-^FM~Jp
// Draw the icon ?,s]5
dc.DrawIcon(x, y, m_hIcon); yP$@~L[!
}
~8
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else :j(e+A1@
{ R[_Q}W'HG
CDialog::OnPaint(); 9mE6Cp.Wv
} LSewMj
} pK` 1pfih
WX"iDz.
HCURSOR CCaptureDlg::OnQueryDragIcon() r<'ni
{ G47(LE"2b
return (HCURSOR) m_hIcon; !8g419Yg
} hcn$uyP
6HroKu
void CCaptureDlg::OnCancel() 9S'u1%
{ 6U .A/8z
if(bTray) OaTnQ|*
DeleteIcon(); G5WQTMzf&
CDialog::OnCancel(); d]A.=NAc
} PP*6nW8
x[?N[>uw
void CCaptureDlg::OnAbout() [U5@m]>^
{ 4X-" yQ<U
CAboutDlg dlg; CdBpz/
dlg.DoModal(); 4^r4O#
} V}3'0
tIK`/)w,
void CCaptureDlg::OnBrowse() z*V 8l*
{ ./]xn
CString str; Q};n%&n&
BROWSEINFO bi; fe!eZiE
char name[MAX_PATH]; '/OcJVSR
ZeroMemory(&bi,sizeof(BROWSEINFO)); @h&:xA56
bi.hwndOwner=GetSafeHwnd(); 'FNnFm
bi.pszDisplayName=name; $-D}y:
bi.lpszTitle="Select folder"; Yg/g9$'
bi.ulFlags=BIF_RETURNONLYFSDIRS; (rmOv\hG9V
LPITEMIDLIST idl=SHBrowseForFolder(&bi); }VU^ 8D
if(idl==NULL) C/$bgK[ev
return; s5bqS'%
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); 3_ bE12
str.ReleaseBuffer(); ZLjEH7
m_Path=str; SFu]*II;{
if(str.GetAt(str.GetLength()-1)!='\\') FR9w0{o
m_Path+="\\"; L@5sY0 M
UpdateData(FALSE); }SfS\b{|~
} noNJ+0S
M)F_$
ICE-
void CCaptureDlg::SaveBmp() c,2OICj
{ tJG+k)EE
CDC dc; g6
H}a
dc.CreateDC("DISPLAY",NULL,NULL,NULL); mjQZ"h0
CBitmap bm; 3S 5`I9I
int Width=GetSystemMetrics(SM_CXSCREEN); ! k[JP+;
int Height=GetSystemMetrics(SM_CYSCREEN); *{_N*p\{
bm.CreateCompatibleBitmap(&dc,Width,Height); ^h$^j
CDC tdc; [vGkr" =
tdc.CreateCompatibleDC(&dc);
O~Jm<