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:
b4ORDU
Xd|@w{.m* 一、实现方法
~O@V;y C"IPCJYn 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:
1#]tCi` cQgmRHZ] #pragma data_seg("shareddata")
-U%wLkf| HHOOK hHook =NULL; //钩子句柄
X?4tOsd UINT nHookCount =0; //挂接的程序数目
,D
;`t static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
]Z<{
~ static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
8"8sI static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
2',t@< U static int KeyCount =0;
&giJO-^
f static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
j]Rl1~+M #pragma data_seg()
Qf>dfJ^q Q(Vc/ 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。
!c(B^E w`>xK
sKW> 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:
;EL!TzL:8 QhpE 2ICU BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
z<^HohT cKey,UCHAR cMask)
2$[u&__E {
En5I BOOL bAdded=FALSE;
hs<7(+a for(int index=0;index<MAX_KEY;index++){
;\Wg>sq if(hCallWnd[index]==0){
^Y #?@ hCallWnd[index]=hWnd;
/wCP(1Mw HotKey[index]=cKey;
;K$E;ZhPN HotKeyMask[index]=cMask;
1|z>}
xP bAdded=TRUE;
OWOj|jM KeyCount++;
AU-/-h=Mr break;
VWLou
jB }
\zj8| + }
##k=='dR return bAdded;
:kY][_ }
*e_ /D$SC //删除热键
%\r4c*O1q BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
oB_{xu$6| {
R['qBHQ? BOOL bRemoved=FALSE;
.f(x9|K^ for(int index=0;index<MAX_KEY;index++){
x,>@IEN7 if(hCallWnd[index]==hWnd){
3ufUB^@4v if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
H~||]_q| hCallWnd[index]=NULL;
5G\vV]RR& HotKey[index]=0;
lW^RwNcd HotKeyMask[index]=0;
q7m-} mBN~ bRemoved=TRUE;
s{IycTbz KeyCount--;
U&`M G1uHe break;
oWx!
'K6]V }
@xO<~ }
ZZl)p\r }
Eer rIV return bRemoved;
#1V vK
}
/A<L Nz5gu.a6{L ]'T-6 DLL中的钩子函数如下:
fS!%qr 3(AgUq LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
5;dnxhf {
tM{t'WU BOOL bProcessed=FALSE;
,/o<O jR if(HC_ACTION==nCode)
Ov?k4kJ {
%Vive2j C if((lParam&0xc0000000)==0xc0000000){// 有键松开
L
F Z switch(wParam)
4HkOg)a {
Z4E:Z}~'' case VK_MENU:
10}\7p8 MaskBits&=~ALTBIT;
;t"#7\ break;
m./lrz case VK_CONTROL:
hQ8/-#LO_ MaskBits&=~CTRLBIT;
MH!'g7iK8 break;
A9$q;8= < case VK_SHIFT:
3{]i| 1&j MaskBits&=~SHIFTBIT;
Os?~U/ break;
I^\YD9~=x default: //judge the key and send message
KcNEB_i break;
yWt87+%T }
<P}{0Y~@*W for(int index=0;index<MAX_KEY;index++){
]}KmT"vA if(hCallWnd[index]==NULL)
H.wp{m{ continue;
eNN% %Q if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Ou8@7S {
'S@C,x%2, SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
G~u94rw|: bProcessed=TRUE;
;se-IDN }
. (Q;EF`_U }
ihf5`mk/$ }
/>K$_T/] else if((lParam&0xc000ffff)==1){ //有键按下
]rC6fNhQ switch(wParam)
[S-NGip {
8Ay#6o case VK_MENU:
d8dREhK& MaskBits|=ALTBIT;
"fr B5[ break;
?&"cI5- case VK_CONTROL:
dl(cYP8L MaskBits|=CTRLBIT;
WR gAc% break;
Bb8lklQ case VK_SHIFT:
O2ety2}?f MaskBits|=SHIFTBIT;
>Y)jt*vQ break;
.5KRi6 default: //judge the key and send message
!-LPFy> break;
7GWPsaPn }
7cY_=X-?Y for(int index=0;index<MAX_KEY;index++){
hY/SR'8 if(hCallWnd[index]==NULL)
"2N3L8?k continue;
Ny
p5= if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
GkaIqBS {
6hAeLlU1 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
8O("o7~" bProcessed=TRUE;
Wi
hQj }
iV(B0z }
^xu`NE8; }
l J;wl|9 if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
o^d(mJZ.F~ for(int index=0;index<MAX_KEY;index++){
1LT)%_d@ if(hCallWnd[index]==NULL)
l3b$b%0' continue;
}bAd@a9>3 if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
IAhyGD{b SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
h,rGa\X~0 //lParam的意义可看MSDN中WM_KEYDOWN部分
P_,f }
dB^J}_wp }
#@3RYx }
k "'q return CallNextHookEx( hHook, nCode, wParam, lParam );
)=[K$>0k }
bx!Sy0PUJ ZQsE07 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
nBWrkVX \*v}IO>2}) BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
? R;5ErZ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
CZxQz
>.\G/'\? 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
\02j~r`o Cdotl$' LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
ZgZ}^x {
?b^VEp.;} if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
zPH1{|H+l {
toX4kmC //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
`m`jX|` SaveBmp();
0F0V JE return FALSE;
eP(%+[g }
iG6 ^s62z7 …… //其它处理及默认处理
v>~ottQ| }
#HJ F== PF1!aAvVb f?2Y np=@ 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。
<@A/`3_O) 9'Pyo`hJ#U 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。
va95/( Yw\}'7 二、编程步骤
d3&gHt2 *~lD;{2 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";
A\i/@x5# !5?#^q 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
818</b<yn (|bMtT?"x 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;
`$nMTx]Y " 5synfO 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
;=5V)1~i1; dY;^JPT 5、 添加代码,编译运行程序。
?0DCjh8We InH
R>, 三、程序代码
7I&7YhFI Y)hLu:P]
///////////////////////////////////// Hook.h : main header file for the HOOK DLL
]^3_eHa^d #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
/21d%T:} #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
Q2Yv8q_}Uq #if _MSC_VER > 1000
--Dw #pragma once
p<Ah50!B #endif // _MSC_VER > 1000
0`h[|FYV #ifndef __AFXWIN_H__
m{JiF-=u #error include 'stdafx.h' before including this file for PCH
rPaD#GA[7 #endif
f`:e#x #include "resource.h" // main symbols
+LV'E#h!Q class CHookApp : public CWinApp
x/[i &Gkv {
1_fFbb" public:
/JEH%) CHookApp();
3${?!OC // Overrides
V~Tjz%< // ClassWizard generated virtual function overrides
V*=cNj //{{AFX_VIRTUAL(CHookApp)
u5H#(&Om public:
@7u4v%,wB virtual BOOL InitInstance();
6zRJ5uI,/ virtual int ExitInstance();
C:
kl/9M@ //}}AFX_VIRTUAL
HoH3.AY X //{{AFX_MSG(CHookApp)
Ook3B // NOTE - the ClassWizard will add and remove member functions here.
\#LKsQa // DO NOT EDIT what you see in these blocks of generated code !
Kp~k!6x //}}AFX_MSG
D8m?`^Zz DECLARE_MESSAGE_MAP()
/v5Pk.!o };
thipfS LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
O.&6J/ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
$#]?\psf BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
2}$Vi$
R BOOL InitHotkey();
^nbze BOOL UnInit();
I;P?P5H #endif
X2M<DeF: L9Fx
Lw41 //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
*VHBTO9 #include "stdafx.h"
{@Diig #include "hook.h"
u%XFFt5 #include <windowsx.h>
Ct }"o #ifdef _DEBUG
KS*W<_I #define new DEBUG_NEW
1G.+)*:3 #undef THIS_FILE
+
{a static char THIS_FILE[] = __FILE__;
A'[A!NL% #endif
:&?# ~NFH #define MAX_KEY 100
&=$8
v"&^ #define CTRLBIT 0x04
VZAdc*X #define ALTBIT 0x02
Rn(| #define SHIFTBIT 0x01
M#<x2ojW #pragma data_seg("shareddata")
;Ic3th%u HHOOK hHook =NULL;
~{^AP UINT nHookCount =0;
}Lb];hww1 static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
OQ+?nB static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
cb'8Li8,j static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
=;Wkg4\5 static int KeyCount =0;
elKQge static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
yA%[u.{ #pragma data_seg()
7DOAG[gH HINSTANCE hins;
Qbv)(&i#~ void VerifyWindow();
\R79^ BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
UwE^ij //{{AFX_MSG_MAP(CHookApp)
Nz!AR$
// NOTE - the ClassWizard will add and remove mapping macros here.
Rx`0VQ // DO NOT EDIT what you see in these blocks of generated code!
D"^ogY#LK //}}AFX_MSG_MAP
_^P>@
^ END_MESSAGE_MAP()
^f<f&V jDXmre? CHookApp::CHookApp()
"H G:by {
V8n}" // TODO: add construction code here,
'kx{0J? // Place all significant initialization in InitInstance
#e8CuS }
U]R7= S?Eg CHookApp theApp;
vm4]KEyrX LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
e;!<3b {
8V}c(2m BOOL bProcessed=FALSE;
4
Qw;r if(HC_ACTION==nCode)
7XR[`Tn9< {
<n6/np! if((lParam&0xc0000000)==0xc0000000){// Key up
7,+:QY@ switch(wParam)
_')KDy7 {
E*
lqC h case VK_MENU:
bjvi`jyL3k MaskBits&=~ALTBIT;
\lY26' break;
~?L. n:wu case VK_CONTROL:
@NyCMe;] MaskBits&=~CTRLBIT;
#vDe/o+= break;
lT(MywNsg case VK_SHIFT:
qY0Ic5wCY MaskBits&=~SHIFTBIT;
]I}'
[D break;
4Yn*q~f default: //judge the key and send message
|UlScUI, break;
M~"K@g=Wr }
(JF\%Yj/ for(int index=0;index<MAX_KEY;index++){
wiFckF/
if(hCallWnd[index]==NULL)
7M$>'PfO continue;
`[:f;2(@ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Ybok[5 {
HZP`u >. SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
=)T5Y,+rJ bProcessed=TRUE;
1$
l3-x }
W}Z|v
M$ }
e{?~m6 }
qQ|v~^ else if((lParam&0xc000ffff)==1){ //Key down
)P,jpE8 switch(wParam)
Rq\.RR]( {
7Y$p3]0e+ case VK_MENU:
K}wUM^ MaskBits|=ALTBIT;
+1cK (Si break;
U9;AU]A case VK_CONTROL:
&]ImO
RN MaskBits|=CTRLBIT;
r<~1:/F|
break;
.IG(Y!cB case VK_SHIFT:
k+%6:r,r& MaskBits|=SHIFTBIT;
Q7f\ 5QjT break;
VBsS1!g default: //judge the key and send message
ci|6SaY* break;
#uFP
eu: }
@Vc*JEW for(int index=0;index<MAX_KEY;index++)
>Ei_## {
`&j5/[>v if(hCallWnd[index]==NULL)
>H?8?a D continue;
p]IF=~b if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
t&0pE(MO/ {
-x@mS2 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
91e&-acA bProcessed=TRUE;
jsc1B }
"ifYy>d }
$^}?98m }
oJ>]=^?k if(!bProcessed){
_KC()OIeC for(int index=0;index<MAX_KEY;index++){
1Y\g{A" if(hCallWnd[index]==NULL)
x.~Z9j continue;
'$;S?6$eW if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
9:IVSD&"Rf SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
?nCG:\&;'= }
Tf<1Z{9 }
E"nIC,VZ }
>2,x#RQs return CallNextHookEx( hHook, nCode, wParam, lParam );
; Sq_DP1W }
Kbrb;r59 [n44; BOOL InitHotkey()
O2-9Oo@#, {
2D>WIOX if(hHook!=NULL){
bBn4m: nHookCount++;
U;Y{=07a@ return TRUE;
$&I##od }
S{7A3
x'B else
db'Jl^ hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
v&;q4b4 if(hHook!=NULL)
/Z94<}C6b nHookCount++;
-uHD|
} return (hHook!=NULL);
#ih(I7prH }
Om,+59ua* BOOL UnInit()
Oca_1dlx {
uK2MC?LP if(nHookCount>1){
$0~H~- nHookCount--;
2Xys;Dwx return TRUE;
!X[b 4p }
vT#zc)j BOOL unhooked = UnhookWindowsHookEx(hHook);
LJt#c+]Li if(unhooked==TRUE){
w$MFCJ:p& nHookCount=0;
0,1:l3iu1M hHook=NULL;
/GD4GWv : }
)
wtVFG return unhooked;
xT6&;,|` }
oi^2Pvauh d[9c6C:<q BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
4C\>JGZvq {
WwG78b-OA BOOL bAdded=FALSE;
L0H;y6& for(int index=0;index<MAX_KEY;index++){
o{f|==<t3# if(hCallWnd[index]==0){
9~2}hXm; hCallWnd[index]=hWnd;
.&:y+Oww~ HotKey[index]=cKey;
UE3(L
^ HotKeyMask[index]=cMask;
eKPxSN Z bAdded=TRUE;
$O9Nprf KeyCount++;
$w4%JBZr break;
aw&:$twbM }
2oyTS*2u_& }
J6r"_>)z return bAdded;
uu@Y]0- }
%{WZ M0zJGIT~b BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
rH
Et]Xa {
#}*w &y BOOL bRemoved=FALSE;
(ZH5/VKp for(int index=0;index<MAX_KEY;index++){
AV{3f` if(hCallWnd[index]==hWnd){
G-
wQ
weJ9 if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
onL&lE hCallWnd[index]=NULL;
=oQw?,eY
HotKey[index]=0;
INtt0Cm9" HotKeyMask[index]=0;
zO8`xrN! bRemoved=TRUE;
K=T]@ix$ KeyCount--;
Vz[E)(QX-` break;
(WZKqt)S"o }
C%_^0#8-0 }
29]-s Utqv }
D#Fe\8!l return bRemoved;
f'P}]_3( }
|TM&:4D]^ `7_=2C void VerifyWindow()
WwG +Xa {
l,AK for(int i=0;i<MAX_KEY;i++){
t9T3e if(hCallWnd
!=NULL){ 7yp7`|,p
if(!IsWindow(hCallWnd)){ ]4~-
z3=y
hCallWnd=NULL; 7.g)_W{7}
HotKey=0; ;]YQWK
HotKeyMask=0; :aHD'K
KeyCount--; hDaI@_86
} h<;kj#qbb
} }%LwaRT
} 6!P];3&o\A
} %~%1Is`4J
s33< }O0
BOOL CHookApp::InitInstance() D~ _|`D5WK
{ BkfWZ O{7
AFX_MANAGE_STATE(AfxGetStaticModuleState()); s!S,;H
hins=AfxGetInstanceHandle(); $[9,1.?C
InitHotkey(); Jg#L8>p1
return CWinApp::InitInstance(); 4
4%jz-m
} ]}z;!D>
uV1H iv-
int CHookApp::ExitInstance() XgY( Vv
{ fq-$u;~h
VerifyWindow(); K0B
J
UnInit(); XP'Mv_!Z
return CWinApp::ExitInstance(); 9D74/3b*
} L8-
mY"DYYR>
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file $$C5Q;7w!
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) w`XwW#!}@$
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ ,Ie~zZE&
#if _MSC_VER > 1000 wqDRFZ1*P
#pragma once E:BEQ:(~L
#endif // _MSC_VER > 1000 i[FcY2
zSta!]
class CCaptureDlg : public CDialog qmUq9bV
{ g;en_~g3j
// Construction A(AyLxB47*
public: Gjuc"JR7
BOOL bTray; \phG$4(7+
BOOL bRegistered; aM'0O![d
BOOL RegisterHotkey(); -F,o@5W>Y
UCHAR cKey; @'[w7HsJ
UCHAR cMask; ;cZ9C 1
void DeleteIcon(); } {/4sll
void AddIcon(); Q6?+# }
UINT nCount;
Z4'"*
void SaveBmp(); .FK'TG
CCaptureDlg(CWnd* pParent = NULL); // standard constructor j}8IT
// Dialog Data *|AnL}GJ
//{{AFX_DATA(CCaptureDlg) AG)N^yd
enum { IDD = IDD_CAPTURE_DIALOG }; QQ@, v@j5
CComboBox m_Key; l/OG79qq
BOOL m_bControl; [ANit0-~
BOOL m_bAlt; ]OY6.m
BOOL m_bShift; +AyQ4Q(-o
CString m_Path; |
(P%<
CString m_Number; qcke8Q
//}}AFX_DATA 'ntb.S)
// ClassWizard generated virtual function overrides ^8)&~q*
//{{AFX_VIRTUAL(CCaptureDlg) )<4o"R:*
public: Faa:h#
virtual BOOL PreTranslateMessage(MSG* pMsg); hXS'*vO"
protected: 3hR7 ./
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support ,: w~-
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); xTD6?X'4
//}}AFX_VIRTUAL lsW.j#yE!
// Implementation x[nv+n ,
protected: WlP@Tm5g/
HICON m_hIcon; -a3+C,I8g
// Generated message map functions =B1t?("
//{{AFX_MSG(CCaptureDlg) ^w2n
virtual BOOL OnInitDialog(); 05*_h0}
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); #Vn=(U4}!_
afx_msg void OnPaint(); m|~,# d@
afx_msg HCURSOR OnQueryDragIcon(); I>/`W
virtual void OnCancel(); <)Kjf/x
afx_msg void OnAbout(); V2w[0^L
afx_msg void OnBrowse(); S,AZrgh,"X
afx_msg void OnChange(); 2 )RW*Qu;+
//}}AFX_MSG dG7sY
O@U
DECLARE_MESSAGE_MAP() f;u;hQxs
}; 9Lz)SYd
#endif {KwLcSn
&%u,b~cL?
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file e /;Ui
#include "stdafx.h" &[cL%pP
#include "Capture.h" >jl"Yr#
#include "CaptureDlg.h" +Q-~~v7,
#include <windowsx.h> .[cT3l/t
#pragma comment(lib,"hook.lib") Bo%M-Gmu
#ifdef _DEBUG =q
xcM+OX1
#define new DEBUG_NEW vW$]:).
#undef THIS_FILE 8GlH)J+kq
static char THIS_FILE[] = __FILE__; (-dJ0!
#endif h:bs/q+-
#define IDM_SHELL WM_USER+1 p6=#LwL'
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); ;t?pyFT2Z
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); l'16B^
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; W]Ph:O^5c
class CAboutDlg : public CDialog y_$^Po
{ fE7WLV2I>
public: Kyl(
CAboutDlg(); ?!~au0
// Dialog Data ui 2RTAb
//{{AFX_DATA(CAboutDlg) $ @1&G~x
enum { IDD = IDD_ABOUTBOX }; gX(QRQ
//}}AFX_DATA
iI
^{OD
// ClassWizard generated virtual function overrides !uO|T'u0a
//{{AFX_VIRTUAL(CAboutDlg) ZN4&:9M
protected: 3"L$*toRA
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support ["L?t ^*G
//}}AFX_VIRTUAL
%;W8;
// Implementation &R^mpV5
protected: ^E:;8h4$9
//{{AFX_MSG(CAboutDlg) =u;q98r
//}}AFX_MSG i;dr(c/ft
DECLARE_MESSAGE_MAP() xq~=T:>/A
}; A(s/Nz>
O0$ijJa|
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) KPO((G0&
{ wK\SeX
//{{AFX_DATA_INIT(CAboutDlg) RgRcW5VxK
//}}AFX_DATA_INIT Xif`gb6`
} g)p[A 4
s[s^z<4G
void CAboutDlg::DoDataExchange(CDataExchange* pDX) jcG4h/A
{ ~~fL`"
CDialog::DoDataExchange(pDX); 4PF4#
//{{AFX_DATA_MAP(CAboutDlg) ix/uV)]k`
//}}AFX_DATA_MAP (f.A5~e
} ^|\?vA
?41| e+p
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) b~~}(^Bg
//{{AFX_MSG_MAP(CAboutDlg) d8r+UP@#
// No message handlers ~,guw7F
//}}AFX_MSG_MAP 6/n;u{|
END_MESSAGE_MAP() ){(cRB $
LpiLk| 2i
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) ~G$OY9UC
: CDialog(CCaptureDlg::IDD, pParent) 7yj2we
{ #nxx\,i>
//{{AFX_DATA_INIT(CCaptureDlg) i@;a%$5
m_bControl = FALSE; [&4y@
m_bAlt = FALSE; W>Kwl*Cis"
m_bShift = FALSE; j>:T)zhyY
m_Path = _T("c:\\"); <;T7qEIlo
m_Number = _T("0 picture captured."); =0-qBodbl
nCount=0; y7Ub~qU
bRegistered=FALSE; ";xEuX
bTray=FALSE; Lr~K3nb
//}}AFX_DATA_INIT [/kO>
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 3k(?`4JJ
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); hh{liS% 10
} h=tY 5]8
4CCux4)N
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) )}aF=%
{ aD^MoB3
CDialog::DoDataExchange(pDX); PLyu1{1"z
//{{AFX_DATA_MAP(CCaptureDlg) 5C&f-* Bh
DDX_Control(pDX, IDC_KEY, m_Key); %qHT!aP
DDX_Check(pDX, IDC_CONTROL, m_bControl); -jy"?]ve.
DDX_Check(pDX, IDC_ALT, m_bAlt); GwycSb1
DDX_Check(pDX, IDC_SHIFT, m_bShift); !L_ SHlU
DDX_Text(pDX, IDC_PATH, m_Path); vOS0E^
DDX_Text(pDX, IDC_NUMBER, m_Number); {?iqO?
//}}AFX_DATA_MAP ?x0yiV~dL
} +NY4j-O
1L|(:m+
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) f#t^<`7
//{{AFX_MSG_MAP(CCaptureDlg) i<?4iwX%i*
ON_WM_SYSCOMMAND() kA_3o)J
ON_WM_PAINT() SMFW]I2T/
ON_WM_QUERYDRAGICON() l.juys8s
ON_BN_CLICKED(ID_ABOUT, OnAbout) F~AS(sk
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) .g~@e_;):
ON_BN_CLICKED(ID_CHANGE, OnChange) B@=<'/S\7
//}}AFX_MSG_MAP s*f.` A*)
END_MESSAGE_MAP() ;cr6Xop#?
m5pVt4
BOOL CCaptureDlg::OnInitDialog() *PEuaRDN
{ gT
OMD
CDialog::OnInitDialog(); jhG7sS|
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); dWy1=UQfP
ASSERT(IDM_ABOUTBOX < 0xF000); aAM UJk
CMenu* pSysMenu = GetSystemMenu(FALSE); v~Qy{dn
P
if (pSysMenu != NULL) nS4S[|w"
{ 'qJ-eQ7e
CString strAboutMenu; F21[r!3
strAboutMenu.LoadString(IDS_ABOUTBOX); Ol[gck|~
if (!strAboutMenu.IsEmpty()) Ji[g@#
{ njMy&$6a##
pSysMenu->AppendMenu(MF_SEPARATOR); D3xaR
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); J"rwWIxO*
} DZRxp,
} fJ2{w[ne
SetIcon(m_hIcon, TRUE); // Set big icon L@r.R_*H?s
SetIcon(m_hIcon, FALSE); // Set small icon VWy:U#;+8
m_Key.SetCurSel(0); ]F;]<_
RegisterHotkey(); l|A8AuO*?
CMenu* pMenu=GetSystemMenu(FALSE); =bWq 3aP)P
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); MPn>&28"|K
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); k+$4?/A
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); >;v0zE
return TRUE; // return TRUE unless you set the focus to a control rVy\,#|
} Vor9
?F&w
m1i+{((
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) W;dzLgc
{ tQ
JH'YV
if ((nID & 0xFFF0) == IDM_ABOUTBOX) JK"uj%
{ 5,BkwAr+6[
CAboutDlg dlgAbout; -_DiD^UcXn
dlgAbout.DoModal(); )]>
'7] i
} Q 02??W
else &W+G{W{3
{ xKST-:c +
CDialog::OnSysCommand(nID, lParam); zl
0^EltiU
} 9~'Ip7X,!
} |/=p
]#q7}Sd
void CCaptureDlg::OnPaint() \w[ZY$/
{ D.R|HqZ
if (IsIconic()) s*/ G-
lY
{ lkWeQ)V
CPaintDC dc(this); // device context for painting j_uY8c>3\q
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); 4*XP;`
// Center icon in client rectangle u$,Wyi )L
int cxIcon = GetSystemMetrics(SM_CXICON); IOZ|85u=
int cyIcon = GetSystemMetrics(SM_CYICON); k,iV$,[TF
CRect rect; V'f5-E0
GetClientRect(&rect); t>GLZzO
int x = (rect.Width() - cxIcon + 1) / 2; "jJdUFN
int y = (rect.Height() - cyIcon + 1) / 2; |DPpp/
// Draw the icon 1\J1yOL
dc.DrawIcon(x, y, m_hIcon); $_7d! S"
} 9
roth
else p F*~)e
{ xKLcd+hCZ
CDialog::OnPaint(); X`v79`g_
} 2X;0z$
} i~Ob( YIH
iLd"tn'
HCURSOR CCaptureDlg::OnQueryDragIcon() )tI2?YIR
{ u3i|}`
return (HCURSOR) m_hIcon; (=tF2YBV
} Z=Y_;dS9
a0/n13c?G
void CCaptureDlg::OnCancel() t k/K0u
{ z'}= A
if(bTray) (VXx G/E3
DeleteIcon(); {L-aXe{
CDialog::OnCancel();
vH?+JN"A
} k5%0wHpk =
ywQ!9 \
void CCaptureDlg::OnAbout() 3| '#n[3
{ :*&9TNUE@
CAboutDlg dlg; voej ~z+
dlg.DoModal(); !%RJC,X
} EBDC '^
K0DXOVT\
void CCaptureDlg::OnBrowse() XAULD]Q
{ 6(q`Oj
CString str; 77&^$JpM
BROWSEINFO bi; *CPB5s
char name[MAX_PATH]; !Nxn[^[?.
ZeroMemory(&bi,sizeof(BROWSEINFO)); w{zJE]7
bi.hwndOwner=GetSafeHwnd(); kG;eOp16R
bi.pszDisplayName=name; ! N"L`RWD
bi.lpszTitle="Select folder"; {7![3`%7
bi.ulFlags=BIF_RETURNONLYFSDIRS; "U5Ln2X{J
LPITEMIDLIST idl=SHBrowseForFolder(&bi); gcW{]0%L^
if(idl==NULL) djy:
return; ox\B3U%`p}
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); fdq^!MWTi
str.ReleaseBuffer(); X\3,NR,
m_Path=str; #-gGsj;F
if(str.GetAt(str.GetLength()-1)!='\\') 4<3?al&
m_Path+="\\"; x(3
I?#kE
UpdateData(FALSE); H ?=pWB
} #EQx
sQ>B_Y!
void CCaptureDlg::SaveBmp() 8W1K3[Jj<
{ Z*)y.i `
CDC dc; BudWbZ5>Ep
dc.CreateDC("DISPLAY",NULL,NULL,NULL); XEUa
CBitmap bm; AK~`pq[.
int Width=GetSystemMetrics(SM_CXSCREEN); HV$9b~(
int Height=GetSystemMetrics(SM_CYSCREEN); =_?pOq
bm.CreateCompatibleBitmap(&dc,Width,Height); X8,7_D$
CDC tdc; fOK+DT~
tdc.CreateCompatibleDC(&dc); 6m-:F.k1(
CBitmap*pOld=tdc.SelectObject(&bm); 6HEqm>Yau
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); _[$T29:8\]
tdc.SelectObject(pOld); KTLbqSS\
BITMAP btm; ]M+VSU
bm.GetBitmap(&btm); Bg 7j5
DWORD size=btm.bmWidthBytes*btm.bmHeight; mX<Fuu}E*Z
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); d4y9AE@k
BITMAPINFOHEADER bih; kb"_6,[Ms
bih.biBitCount=btm.bmBitsPixel; B.}_],
bih.biClrImportant=0; o[bE
bih.biClrUsed=0; q3AJwELXw
bih.biCompression=0; E'e8&3!bx
bih.biHeight=btm.bmHeight; ;t;Y.*&=S
bih.biPlanes=1; Hhe{ +W@~
bih.biSize=sizeof(BITMAPINFOHEADER); (B_7\}v|_
bih.biSizeImage=size; -y&v9OC2-
bih.biWidth=btm.bmWidth; YGq=8p7.R
bih.biXPelsPerMeter=0; Snc;p
bih.biYPelsPerMeter=0; biK)&6|`sa
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); 74@lo-/LY
static int filecount=0;
JmU<y
CString name;
h`wMi}q'D
name.Format("pict%04d.bmp",filecount++); oUJj5iu}
name=m_Path+name; \)OZUch
BITMAPFILEHEADER bfh; a|DsHZ^6^
bfh.bfReserved1=bfh.bfReserved2=0; Usa+b
A
bfh.bfType=((WORD)('M'<< 8)|'B'); 0>,.c2),
bfh.bfSize=54+size; Zg
-]sp]
bfh.bfOffBits=54; CS/Mpmsp
CFile bf; {]wIM^$6+
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ _GVE^yW~z
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); B.89_!/:p
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); [##`Um
bf.WriteHuge(lpData,size); 9R9__w;
bf.Close(); k:b/Gq`
nCount++; Y/.AUN
Z
} {Ge+O<mD
GlobalFreePtr(lpData); ^4c,U9J=
if(nCount==1) 21r==
H$
m_Number.Format("%d picture captured.",nCount); +c^_^Z$_4o
else WtEI] WO
m_Number.Format("%d pictures captured.",nCount); ,i?)
UpdateData(FALSE); *IC^IC:
} 1HMUHZT
6iG(C.b
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) YEzU{J
{ <fN;
xIB
if(pMsg -> message == WM_KEYDOWN) #
;K,,ku
x
{ ^:`oP"%-T
if(pMsg -> wParam == VK_ESCAPE) w/ TKRCO3
return TRUE; {Fbg]'FQ
if(pMsg -> wParam == VK_RETURN) $@_{p*q
return TRUE; 8{dEpV*
} v?L
return CDialog::PreTranslateMessage(pMsg); l^\(ss0~
} ipobr7G.SD
i[\w%(83Fi
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 7paUpQit
{ zDD4m`2
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ ~.J,A\F
SaveBmp(); 6B0#4Qrv
return FALSE; @}Zd (o
} lwc5S`"
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ T-'~? [v
CMenu pop; <47k@Ym
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); v5_7r%Hiw
CMenu*pMenu=pop.GetSubMenu(0); }Dn^d}?s||
pMenu->SetDefaultItem(ID_EXITICON); Z|G/^DK!
CPoint pt; ?]c+j1i
GetCursorPos(&pt); ad9CsvW
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); j(iuz^I
if(id==ID_EXITICON) 4:7m K/Z
DeleteIcon();
.[?BlIlm
else if(id==ID_EXIT) jfD1
OnCancel(); ]IZ>2!6r
return FALSE; /`[!_4i
} v!9i"@<!
LRESULT res= CDialog::WindowProc(message, wParam, lParam); @Y}uZ'jt'
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) %d1draL
AddIcon(); 5r b-U7 /
return res; %y&]'A
} ](#&.q%5!
7G<