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:
zR)9]pJ-
37:\X5)z/ 一、实现方法
0(+3w\_! \\\%pBT7]\ 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:
i+`N0!8lY x3dP`<
#pragma data_seg("shareddata")
Q?e]N I^ HHOOK hHook =NULL; //钩子句柄
5u(B]_r. UINT nHookCount =0; //挂接的程序数目
?Q`u\G3.m static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
|2oCEb1 static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
=&kd|o/i
static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
0~.OMG:= static int KeyCount =0;
x RV@_ static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
}Xn5M&>? #pragma data_seg()
Yv}V =O% pf_(?\oz> 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。
UOi[#L@N zUw=e}?: 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:
e
MX?x7 "oZ$/ap\ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
})zYo 7 cKey,UCHAR cMask)
lwY2zX&%)/ {
t-, =sV
BOOL bAdded=FALSE;
U_1syaY! for(int index=0;index<MAX_KEY;index++){
#q[k"x=c if(hCallWnd[index]==0){
"YUh4uZ~P hCallWnd[index]=hWnd;
:fxG]uf-P HotKey[index]=cKey;
U9uy(KOW HotKeyMask[index]=cMask;
o;d>< bAdded=TRUE;
#!a}ZhIt KeyCount++;
+7HM7cw break;
+W{ELdup%q }
(5-4`:1ux }
5Z2tTw'i return bAdded;
wOhiC$E46 }
s<}d)L( //删除热键
Lm-yTMNPn BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
FZUN*5` {
WfnBWSA2T BOOL bRemoved=FALSE;
5*Wo/%#q for(int index=0;index<MAX_KEY;index++){
m[k@\xS4e if(hCallWnd[index]==hWnd){
=wd=TX/ if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
$)V_oQSqn hCallWnd[index]=NULL;
U64WTS@ HotKey[index]=0;
hcQky/c\#b HotKeyMask[index]=0;
,5tW|=0@ bRemoved=TRUE;
?3X(`:KB KeyCount--;
JjD'2"z break;
1Wz -Z }
Rn"Raq7Cn* }
s]D&): }
[;rty<Z^b return bRemoved;
nPAVrDg
O }
SHc<`M'+ #osP"~{
)QeXA) DLL中的钩子函数如下:
~Ogtgr &mG1V LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
Xm#E9 9 {
9e`.H0 BOOL bProcessed=FALSE;
j,HUk,e^& if(HC_ACTION==nCode)
=.*+c\ {
|H!kU.f] if((lParam&0xc0000000)==0xc0000000){// 有键松开
=vqy5y switch(wParam)
-#9Hb.Q; {
sYt\3/yL' case VK_MENU:
]Wn^m+ MaskBits&=~ALTBIT;
n!nXM break;
`7f><p/q case VK_CONTROL:
!9w;2Z]uum MaskBits&=~CTRLBIT;
9:JFG{M break;
S 54N case VK_SHIFT:
#Tr>[ZC MaskBits&=~SHIFTBIT;
M/O4JZEqh break;
oNkASAd default: //judge the key and send message
V>8)1)dF break;
\wyn }
Y,?!" for(int index=0;index<MAX_KEY;index++){
t[L_n m5- if(hCallWnd[index]==NULL)
*5kQ6#l continue;
`cz%(Ry, if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
f3g#(1 {
uQ} 0hs SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
P|:*OM
p bProcessed=TRUE;
sHt
PO[h }
;8?i }
ucVWvXCr }
qIO<\Yl else if((lParam&0xc000ffff)==1){ //有键按下
xaM?
B7 switch(wParam)
o@p(8=x {
PYOU=R%o`8 case VK_MENU:
U}6FB = MaskBits|=ALTBIT;
r-r)'AAO break;
B4/0t:^I case VK_CONTROL:
?iX1;c9 MaskBits|=CTRLBIT;
efK3{
break;
C(ay7 case VK_SHIFT:
{*X8!P7C MaskBits|=SHIFTBIT;
T)!$-qdz/ break;
5WT^;J9V default: //judge the key and send message
`|Ll break;
APfDy }
^KKU@ab9 for(int index=0;index<MAX_KEY;index++){
DE0gd
ux8 if(hCallWnd[index]==NULL)
xh7[{n[; continue;
/Ir|& <yB if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
,>: {
BW`)q/ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
yq?7!X bProcessed=TRUE;
n@hf{hA[a }
#[4Mw M3 }
VcLB0T7m\ }
shjq4#9 if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
&8l4A=l$ for(int index=0;index<MAX_KEY;index++){
Mp8FYPjZ if(hCallWnd[index]==NULL)
#6jdv|fu continue;
r_5k$u( if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
yNVmTb9mF SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
&_DRrp0CN //lParam的意义可看MSDN中WM_KEYDOWN部分
gypE~@ }
TAkM-iyH] }
^/)!)=? }
l7.W2mg return CallNextHookEx( hHook, nCode, wParam, lParam );
Eyv|~D }
x[ sSM: K2W$I H:. 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:
OG M9e! eH*u,/ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
m((A BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
D<.zdTo !uC`7a 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:
eX+FtN rvdhfM!-A LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
uSAb {
z3RlD"F1 if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
#^\qFj {
Ws+Zmpk% //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
w""5T| SaveBmp();
HjX!a29Wf return FALSE;
f/FK>oUh }
w&M)ws;$ …… //其它处理及默认处理
L$ nFRl& }
"8bxb xnyp'O8yk WFOO6
kMz 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。
zF&>1y.$ # j=r 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。
K3c(c%$<R k 5<[N2D|! 二、编程步骤
#4WA2EW :%#(<@ { 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";
qep<7 QO j3!]wolY 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
\F|L y >g AYC22( 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;
X j'7nj
Tl.%7) 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;
v7"Hvp3w 64#6L.Q-c 5、 添加代码,编译运行程序。
d/Sx+1
"{T 1I'ep\`"X 三、程序代码
aS7[s6 2n9E:tc ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
<lx~/3<m #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
\Ty%E< #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
$] js0)> #if _MSC_VER > 1000
\X'{ e e #pragma once
IX|2yu4 #endif // _MSC_VER > 1000
?\HXYCi0r #ifndef __AFXWIN_H__
:&]THUw #error include 'stdafx.h' before including this file for PCH
. PzlhTL7 #endif
~[J&n-bJU #include "resource.h" // main symbols
C$Y pk\p class CHookApp : public CWinApp
VTDp9s {
2iUdTy$ public:
BjT0mk"P CHookApp();
*mqoyOa // Overrides
>3S^9{d // ClassWizard generated virtual function overrides
7qyv.{+ //{{AFX_VIRTUAL(CHookApp)
_;A?w8z public:
bdn{Y virtual BOOL InitInstance();
y=L9E? virtual int ExitInstance();
zLG5m]G4D //}}AFX_VIRTUAL
8Nr,Wq //{{AFX_MSG(CHookApp)
q><E? // NOTE - the ClassWizard will add and remove member functions here.
]FJpe^
ua // DO NOT EDIT what you see in these blocks of generated code !
^,Sl^ 9K //}}AFX_MSG
n9J.]+@J DECLARE_MESSAGE_MAP()
y.zS?vv2g };
lgxG:zAC
LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
S?Y,sl+A: BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
E57J).x-BP BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
OVsZUmSG BOOL InitHotkey();
]LvpYRU$P BOOL UnInit();
%hYol89F #endif
MTKd:.J6 KcGM=z?: //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
+["t@Q4IQ #include "stdafx.h"
&{s`=IeN #include "hook.h"
N XwQvm;q #include <windowsx.h>
[l+1zt0w0 #ifdef _DEBUG
t"0Z=`Wi #define new DEBUG_NEW
YpFh_Zr[ #undef THIS_FILE
4XkSj9D~z static char THIS_FILE[] = __FILE__;
5WR(jl+M #endif
=H'7g6 #define MAX_KEY 100
Bn7~ p+N #define CTRLBIT 0x04
VQ{.Ls2`Z #define ALTBIT 0x02
GEg8\ #define SHIFTBIT 0x01
9(%ptnya #pragma data_seg("shareddata")
0]dL;~0y. HHOOK hHook =NULL;
Kvu0Av-7 UINT nHookCount =0;
''9FB5 static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
k1A64?p static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
a95QDz static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
J?ljqA}i static int KeyCount =0;
*siN#,5 static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
LL~bq(b #pragma data_seg()
r?e)2l~C8j HINSTANCE hins;
{+V1>6 void VerifyWindow();
3{mu 77 BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
0@R @L}m //{{AFX_MSG_MAP(CHookApp)
q4XS
E, // NOTE - the ClassWizard will add and remove mapping macros here.
:
"[dr~. // DO NOT EDIT what you see in these blocks of generated code!
D`;Q?fC //}}AFX_MSG_MAP
B!vI^W END_MESSAGE_MAP()
4uUG0o L0_qHLY CHookApp::CHookApp()
OUY65K {
c\.8hd=< // TODO: add construction code here,
mdu5aL // Place all significant initialization in InitInstance
mVYLI!n}0# }
JW!SrM xF t]Ey~-Rx CHookApp theApp;
&j@i>(7 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
1*_wJ {
fJ[(zjk BOOL bProcessed=FALSE;
b"+J8W if(HC_ACTION==nCode)
M1Jnn4w*d {
33O@jbs@ if((lParam&0xc0000000)==0xc0000000){// Key up
[.}-n AN switch(wParam)
l<7)uO^8 {
tUXq!r<'dT case VK_MENU:
3|/<Pk MaskBits&=~ALTBIT;
QI@!QU$K& break;
`P&L. m]| case VK_CONTROL:
W/PZD ( MaskBits&=~CTRLBIT;
.P[
%t=W break;
"{0
o"k case VK_SHIFT:
9aw- n*< MaskBits&=~SHIFTBIT;
~]71(u2 break;
O!!Ne'I default: //judge the key and send message
*g$egipfF break;
X<4h"W6 }
em@\S for(int index=0;index<MAX_KEY;index++){
j HT2|VGb* if(hCallWnd[index]==NULL)
pZRKM<k continue;
$ctY#:;pV{ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
VWoxi$3v {
IrU}%ZVV SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
x\vb@!BZ bProcessed=TRUE;
W&[}-E8<Y }
{`0GAW)q }
Y-%S,91O }
o@}+b}R} else if((lParam&0xc000ffff)==1){ //Key down
'l$<DcBj switch(wParam)
Ak!l}d {
A&i
case VK_MENU:
7Zl-| MaskBits|=ALTBIT;
hB#z8D break;
.!kqIx*3 case VK_CONTROL:
|okS7.|IX MaskBits|=CTRLBIT;
,c:Fa)- break;
~Tv
%6iaeE case VK_SHIFT:
Aj06"ep MaskBits|=SHIFTBIT;
v4}kmH1 break;
4
|$|]E default: //judge the key and send message
gIR{!'
break;
9,|&+G$ }
L3M]06y for(int index=0;index<MAX_KEY;index++)
H4'xxsx {
DCfV if(hCallWnd[index]==NULL)
,*fvA? continue;
]p(jL7 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
<tZPS`c'_ {
1MdVWFKXV SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
Hh=D:kE bProcessed=TRUE;
QE7
r{ }
dKcHj<'E/ }
p1 tfN$- }
%=J<WA6\ if(!bProcessed){
4a;8XAl for(int index=0;index<MAX_KEY;index++){
rJJI<{$ if(hCallWnd[index]==NULL)
XfFZ;ul continue;
?U]/4] if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
yi3@-
SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
@>'.F<:P< }
K ;2tY+I }
vVF#]t b| }
4*9y4" return CallNextHookEx( hHook, nCode, wParam, lParam );
rm*Jo|eH` }
9V&%_.Z N1ZHaZ BOOL InitHotkey()
Fkas*79 {
|y@TI if(hHook!=NULL){
I(E1ym nHookCount++;
xUE 9%qO return TRUE;
Ue|]M36 }
/+G&N{)k else
Au'[|Prr hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
Pg%OFhA if(hHook!=NULL)
$l}MB7 nHookCount++;
DoA4#+RU return (hHook!=NULL);
vs|>U-Mpw~ }
4.bL>Y>c BOOL UnInit()
H".~@,-} {
e!}R1 if(nHookCount>1){
5Bw nHookCount--;
3`4g*wO return TRUE;
j r6)K;:. }
V|vU17Cgy BOOL unhooked = UnhookWindowsHookEx(hHook);
!8]W"@qb if(unhooked==TRUE){
GYot5iLg nHookCount=0;
%&9tn0B
hHook=NULL;
6vz9r)L }
@*W,Jm3Y return unhooked;
V ^=o@I }
+<Ot@ luE =8 d`qS" BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
):C4"2l3 {
{{M?+]p,^ BOOL bAdded=FALSE;
A(#hyb# for(int index=0;index<MAX_KEY;index++){
.H+`]qLkL if(hCallWnd[index]==0){
6/9 A' !4C hCallWnd[index]=hWnd;
0Ha1pqR HotKey[index]=cKey;
4f~hd-z HotKeyMask[index]=cMask;
Zk2-U"0\o bAdded=TRUE;
VF=$'Bl| KeyCount++;
u2'xM0nQ break;
>4=sEj }
<2w@5qL }
r'fNQJ > return bAdded;
N4"%!.Y }
!8ub3oj) =!r9;L,? BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
elXY*nt8h {
0mL#8\'" BOOL bRemoved=FALSE;
E]6C1C&K for(int index=0;index<MAX_KEY;index++){
uYiM~^0 if(hCallWnd[index]==hWnd){
Mq]~Ka3q7 if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
[Z0 &`qz hCallWnd[index]=NULL;
yB(^t`)}N HotKey[index]=0;
]c8lZO> HotKeyMask[index]=0;
0Z#&!xTb bRemoved=TRUE;
(`gqLPx[ KeyCount--;
;ej;<7+ break;
vBQ|h
}
nGGYKI }
6gfv7V2H }
Zr'VA,v return bRemoved;
ihKnZcI$i }
Mi.xay% NvXds;EC void VerifyWindow()
VN|P(S6 {
"y/GK1C for(int i=0;i<MAX_KEY;i++){
yWu80C8q if(hCallWnd
!=NULL){ {$ 4fRxj
if(!IsWindow(hCallWnd)){ 25h.u>6@{
hCallWnd=NULL; X:+;d8rCy
HotKey=0; E
N%cjvE
HotKeyMask=0;
Aki8#
KeyCount--; {[o=df/
} xlkEW&N&
} R1/)Yy
} 30g-J(Zg
} K=VYRY
VWd=7
BOOL CHookApp::InitInstance() r8+{HknB;
{ ~j",ePl
AFX_MANAGE_STATE(AfxGetStaticModuleState()); LnvC{#TFO
hins=AfxGetInstanceHandle(); s$J0^8Q~i
InitHotkey(); JC}y{R8
return CWinApp::InitInstance(); jR\&2;T
} OOs Y{8xM
PoY+Y3
int CHookApp::ExitInstance() >F6'^9|
{ py9(z`}
VerifyWindow(); zCj]mH`es'
UnInit(); %7pT\8E5
return CWinApp::ExitInstance(); %O>ehIerD
} #0"Fw$Pc
_kl.zw%
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file [Hy0j*
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) u!?.vx<qy
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ 5E?{>1
#if _MSC_VER > 1000 GUE3|
#pragma once yb56nd
#endif // _MSC_VER > 1000 $S|bD$e
B@G'6 ?
class CCaptureDlg : public CDialog j%Y`2Ra
{ V9NE kS
// Construction &,2XrXiFu
public: 6<.Ma7)lA
BOOL bTray; i[H`u,%+(
BOOL bRegistered; "zJ1vIZY
BOOL RegisterHotkey(); _/MHi-]/.
UCHAR cKey; 0sto9n3
UCHAR cMask; su>GeJiPW
void DeleteIcon(); o X )r4H?
void AddIcon(); ?@6N EfQf
UINT nCount; y[oc^Zuo
void SaveBmp(); _CDUUr
CCaptureDlg(CWnd* pParent = NULL); // standard constructor ]6Kx0mW
// Dialog Data +rfw)c'
//{{AFX_DATA(CCaptureDlg) a,x-akZWf
enum { IDD = IDD_CAPTURE_DIALOG }; F]@vmzr
CComboBox m_Key; :w:hqe|_
BOOL m_bControl; w4<1*u@${
BOOL m_bAlt; j8WnXp_
BOOL m_bShift; \I1+J9Gl
CString m_Path; (eS4$$g
CString m_Number; 3|8\,fO?
//}}AFX_DATA Z\D!'FX
// ClassWizard generated virtual function overrides LJ`*&J
//{{AFX_VIRTUAL(CCaptureDlg) R2yiExw<
public: (e6JI]tz{
virtual BOOL PreTranslateMessage(MSG* pMsg); Eb{Zm<TP
protected: Tn<
<i
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support uV`r_P
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); m!SxX&m"G
//}}AFX_VIRTUAL v#{Sx>lO
// Implementation C:xgM'~+
protected: <xOXuve
HICON m_hIcon; ({i}EC7{
// Generated message map functions QI'ul e
//{{AFX_MSG(CCaptureDlg) t J
N;WK.6
virtual BOOL OnInitDialog(); /]=Ih
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); v\PqhI y"
afx_msg void OnPaint(); A}?n.MAX>
afx_msg HCURSOR OnQueryDragIcon(); zs:OHEZw
virtual void OnCancel(); :{bvCos<)
afx_msg void OnAbout(); #mLF6"A
afx_msg void OnBrowse(); IWERn
v!
afx_msg void OnChange(); .(^KA{
//}}AFX_MSG Q^>"AhOiU
DECLARE_MESSAGE_MAP() / CEn yE/
}; YAQ]2<H
#endif #kjN!S*=
A-x; ai]
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file $OB 2ZS"
#include "stdafx.h" 1`J-|eH=Q
#include "Capture.h" XFKe6:
#include "CaptureDlg.h" ad1 I2
#include <windowsx.h> uMKO^D
#pragma comment(lib,"hook.lib") :6~Nq/hZB
#ifdef _DEBUG I },.U&r
#define new DEBUG_NEW ?~c=Sa-
#undef THIS_FILE `dekaRo
static char THIS_FILE[] = __FILE__; smaPZ^;; j
#endif n4\UoKq
#define IDM_SHELL WM_USER+1 L"{qF<@V7&
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); >uT,Z,7O
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); /5 yjON{
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; &u&+:m
class CAboutDlg : public CDialog X)^eaw]Q0
{ E7X6Shng
public: 9"hH2jc
CAboutDlg(); "TEF
// Dialog Data k8IhQ{@
//{{AFX_DATA(CAboutDlg) V,:^@ 7d
enum { IDD = IDD_ABOUTBOX }; ~A^E_
//}}AFX_DATA Yw @)0%G
// ClassWizard generated virtual function overrides qg1s]c~0u
//{{AFX_VIRTUAL(CAboutDlg) Y1fcp_]m
protected: 3'tcEFkH
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support _#32hAI
//}}AFX_VIRTUAL p_%dH
// Implementation M|8vP53=q
protected: 4FrP%|%E~
//{{AFX_MSG(CAboutDlg) 0%J0.USkM7
//}}AFX_MSG GPV=(}z
DECLARE_MESSAGE_MAP() AB(WK9o
}; =2v/f_
z7TMg^9#
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) Io_bS+
{ 8'XAZSd(
//{{AFX_DATA_INIT(CAboutDlg) #C^)W/dP
//}}AFX_DATA_INIT @A32|p}
} fk%W07x!
1OI/!!t1$
void CAboutDlg::DoDataExchange(CDataExchange* pDX) .5$"qb
?
{ J]G]
<)
CDialog::DoDataExchange(pDX); I<E~=
//{{AFX_DATA_MAP(CAboutDlg) ;IyA"C(i
//}}AFX_DATA_MAP En!X}Owh
} (~S=DFsP
h pf,44Kg
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) PgOOFRwP
//{{AFX_MSG_MAP(CAboutDlg) >u?m
Bx
// No message handlers +/O3L=QyJ
//}}AFX_MSG_MAP (4]M7b[S$
END_MESSAGE_MAP() :Kq]b@X
9r2l~zE
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) RvQa&r5l
: CDialog(CCaptureDlg::IDD, pParent) @vyq?H$U;N
{ #BtJo:
//{{AFX_DATA_INIT(CCaptureDlg) ri.}G
m_bControl = FALSE; phCItN;
m_bAlt = FALSE; aF8'^xF
m_bShift = FALSE; B|WM;Y^
m_Path = _T("c:\\"); H@,h$$
m_Number = _T("0 picture captured."); ^mwS6WH6
nCount=0; pW&K=,7|
bRegistered=FALSE; Q Ev7k
bTray=FALSE; $'*q]]
//}}AFX_DATA_INIT B^;"<2b*
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 + /+> :
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); P;8nC:z L
} e|-&h `[
I<+EXH%1,
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) lKdd3W"o
{ h~EGRg
CDialog::DoDataExchange(pDX); '[WVP=M<XV
//{{AFX_DATA_MAP(CCaptureDlg) J2ZV\8t
DDX_Control(pDX, IDC_KEY, m_Key); ohU}ST:9
DDX_Check(pDX, IDC_CONTROL, m_bControl); '`s+e#rs4{
DDX_Check(pDX, IDC_ALT, m_bAlt); jK^Q5iD
DDX_Check(pDX, IDC_SHIFT, m_bShift); Rf4}((y7Y\
DDX_Text(pDX, IDC_PATH, m_Path); gN@|lHbU
DDX_Text(pDX, IDC_NUMBER, m_Number); k~%j"%OB
//}}AFX_DATA_MAP
wK]p`:3
} {,+{,Ere
bZ0{wpeK=
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) C))x#P36
//{{AFX_MSG_MAP(CCaptureDlg) ;_X2E~i[
ON_WM_SYSCOMMAND() ;cEoc(<?
ON_WM_PAINT() ;F_pF+&q
ON_WM_QUERYDRAGICON() =\`iC6xP}
ON_BN_CLICKED(ID_ABOUT, OnAbout) /@ww"dmqU
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) y5{Vx{V"Q
ON_BN_CLICKED(ID_CHANGE, OnChange) m?O~(6k@C
//}}AFX_MSG_MAP J?C#'2/
END_MESSAGE_MAP() n58yR -"
3N[Rrxe2
BOOL CCaptureDlg::OnInitDialog() Ce/l[v
{ 8bJj3vr
CDialog::OnInitDialog(); %*
k`z#b
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); H\fsyxM7
ASSERT(IDM_ABOUTBOX < 0xF000); +'|nsIx,
CMenu* pSysMenu = GetSystemMenu(FALSE); Sx8RH),k
if (pSysMenu != NULL) @{>0v"@
{ pC~M5(F_
CString strAboutMenu; 5>6:#.f%!e
strAboutMenu.LoadString(IDS_ABOUTBOX); :X}n[K
if (!strAboutMenu.IsEmpty()) fc&djd`FuX
{ F|a'^:Qs
pSysMenu->AppendMenu(MF_SEPARATOR); X5pb9zRq
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); 5pT8 }?7
} ;kzjx%h
} hmkm^2
SetIcon(m_hIcon, TRUE); // Set big icon ,njlKkFw^Z
SetIcon(m_hIcon, FALSE); // Set small icon 9OYyR
m_Key.SetCurSel(0); boq=@Qh
RegisterHotkey(); l6*MiX]q
CMenu* pMenu=GetSystemMenu(FALSE); ]ZnASlc)
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); P$x9Z3d_
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); Jmuyd\?,b
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); xtBu]I)%
return TRUE; // return TRUE unless you set the focus to a control ?W>`skQ
} }K^v Ujl
IeZ9 "o h
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) A$M8w9
{ OdbXna
if ((nID & 0xFFF0) == IDM_ABOUTBOX) ff;~k?L
{ P;`Awp?
CAboutDlg dlgAbout;
jF-:e;-
dlgAbout.DoModal(); -UM|u_
} zpD?5
else k Nvb>v
{ bcq&yL'D
CDialog::OnSysCommand(nID, lParam); 7YxVtN
} 8_VGB0~3i
} '&+]85_&$
x2sKj"2?@
void CCaptureDlg::OnPaint() 5T%2al,F`
{ !w}b}+]GB
if (IsIconic()) ;W T<]
{ hFo29oN
CPaintDC dc(this); // device context for painting A`#?Bj
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); eBH:_Ls_-^
// Center icon in client rectangle dF[|9%)
int cxIcon = GetSystemMetrics(SM_CXICON); hF{gN3v5
int cyIcon = GetSystemMetrics(SM_CYICON); ^RJ@9`P&t
CRect rect; * RyU*au
GetClientRect(&rect); +_L]d6
int x = (rect.Width() - cxIcon + 1) / 2; XzPOqZ`Nv
int y = (rect.Height() - cyIcon + 1) / 2; F$-f j "jC
// Draw the icon t.+)g-X
dc.DrawIcon(x, y, m_hIcon); #mU<]O
} &b`'RZe
else gnGh )
{ wfv\xHG
CDialog::OnPaint(); jEE!H/
} 8_E(.]U
} twu,yC!
XG*> yra`
HCURSOR CCaptureDlg::OnQueryDragIcon() qyxd9Lk1
{ Gy[anDE&
return (HCURSOR) m_hIcon; Oi'y0S~g
} R7"7
Rx
Ab]tLz|Z
void CCaptureDlg::OnCancel() 2i0;b|-=
{ !u'xdV+bf
if(bTray) "F}dZ
DeleteIcon(); z#Fel/L`O
CDialog::OnCancel(); q 'd]
} ]ag{sU@#
Q5}XD
void CCaptureDlg::OnAbout() s1E 0atT
{ tfe]=_U
CAboutDlg dlg; j^5YFUwsQg
dlg.DoModal(); (5@H<c^6
} X0iy
!uoT8BBAk
void CCaptureDlg::OnBrowse() oN[}i6^,e
{ O\ _ro.
CString str; >|c?ZqW
BROWSEINFO bi; :._Igjj$=
char name[MAX_PATH]; I-/>M/66
ZeroMemory(&bi,sizeof(BROWSEINFO)); 4Z>gK(
bi.hwndOwner=GetSafeHwnd(); Gh/nNwyu<
bi.pszDisplayName=name; #6vf:94
bi.lpszTitle="Select folder"; %g:'6%26
bi.ulFlags=BIF_RETURNONLYFSDIRS; Z1jxu;O(
LPITEMIDLIST idl=SHBrowseForFolder(&bi); 4BUG\~eI3
if(idl==NULL) ?Wz2J3A.2t
return; 2GORGS%
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); (c)=Do=
str.ReleaseBuffer(); 8HFCmY#
m_Path=str; ?_FL
'G
if(str.GetAt(str.GetLength()-1)!='\\') V'e%%&g~N
m_Path+="\\"; Q
8Hl7__^
UpdateData(FALSE); >SLQW
} P))BS
p5$}h,7
void CCaptureDlg::SaveBmp() QRvyaV
{ 6`7tTn?n
CDC dc; S't9F
dc.CreateDC("DISPLAY",NULL,NULL,NULL); .hu7JM+
CBitmap bm; ?$K-f:?c
int Width=GetSystemMetrics(SM_CXSCREEN); V]; i$
int Height=GetSystemMetrics(SM_CYSCREEN); }2@Z{5sh)
bm.CreateCompatibleBitmap(&dc,Width,Height); |,@D<
CDC tdc; v@|<.
tdc.CreateCompatibleDC(&dc); ~h_
_Y>
CBitmap*pOld=tdc.SelectObject(&bm); u.|%@
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); \wD/TLS}
tdc.SelectObject(pOld); CV\^gTPmx
BITMAP btm; EYn?YiVFU
bm.GetBitmap(&btm); (_|*&au J
DWORD size=btm.bmWidthBytes*btm.bmHeight; haBmwq(f
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); ,|d9lK`" P
BITMAPINFOHEADER bih; _Iminet
bih.biBitCount=btm.bmBitsPixel; iMJt8sd
bih.biClrImportant=0; r@}`Sw]@
bih.biClrUsed=0; t 8 6w&
bih.biCompression=0; >vp4R`
bih.biHeight=btm.bmHeight; LT<2 n.S
bih.biPlanes=1; >#$SaG!
bih.biSize=sizeof(BITMAPINFOHEADER); Ij7P-5=<
bih.biSizeImage=size; +HBizJ9K
bih.biWidth=btm.bmWidth; L~-/'+
bih.biXPelsPerMeter=0; pDZewb&cA
bih.biYPelsPerMeter=0; m_*wqNFA6
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); z`IW[N7Z
static int filecount=0; :Bmn<2[Y;
CString name; `v!.
,Yr
name.Format("pict%04d.bmp",filecount++); %Y%r2
name=m_Path+name; p~@,zetS
BITMAPFILEHEADER bfh; h\UKm|BZ
bfh.bfReserved1=bfh.bfReserved2=0; lwq:0Rj@Q
bfh.bfType=((WORD)('M'<< 8)|'B'); s[{[pIH
bfh.bfSize=54+size; nf^?X`g
bfh.bfOffBits=54; S?d<P
CFile bf; /^AH/,p
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ B;eka[xU
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); g}v](Q
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); l<w7
\a6
bf.WriteHuge(lpData,size); o[cOL^Xd1
bf.Close(); La )M
nCount++;
9tJ0O5
} #0r~/gW
GlobalFreePtr(lpData); Rb L?(
if(nCount==1) ,Q56A#Y\
m_Number.Format("%d picture captured.",nCount); @KK6Jy OTQ
else {/]2~!
m_Number.Format("%d pictures captured.",nCount); R|8vdZ%@
UpdateData(FALSE); 6&os`!
} {lWV H
m;~} }~&vQ
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) a5pl/d
{ vSR&>Q%X
if(pMsg -> message == WM_KEYDOWN) ;:D-}t;
{ ;.uYWP|9
if(pMsg -> wParam == VK_ESCAPE)
kScZP8yw
return TRUE; KE3`5Y!
if(pMsg -> wParam == VK_RETURN) /IWAU)A0
return TRUE; YK6LJv}
} <4;
nq~
return CDialog::PreTranslateMessage(pMsg); 04-_ K
} HpEd$+Mz
L]H'$~xx*
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) ;&&<zWq3h
{ KM wV;r
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ P)`^rJ6
SaveBmp(); FuiR\"Ww
return FALSE; u9"yU:1keb
} rS_G;}Zr
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ 2 {&A)Z!I
CMenu pop; rP4T;Clout
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); Nu6NyYs
CMenu*pMenu=pop.GetSubMenu(0); ?Z 2,?G
pMenu->SetDefaultItem(ID_EXITICON); M YF
^zheD
CPoint pt; /eQAGFG
GetCursorPos(&pt); p75 o1RU
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); LZn'+{\`
if(id==ID_EXITICON) :|s8v2am
DeleteIcon(); zG#5lzIu,
else if(id==ID_EXIT) F,Q;sq
OnCancel(); 3P6O]x<-?
return FALSE; %3a-@!|1<
} >BbX:
LRESULT res= CDialog::WindowProc(message, wParam, lParam); gS'{JZu2
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) 9,'m,2%W
AddIcon(); Qb^G1#r@C
return res; $Aw@xC^!
} ekhv.;N~
hN2A%ds*(j
void CCaptureDlg::AddIcon() }qiZ%cT.G
{ %XGm\p
NOTIFYICONDATA data; 5)RZJrN]
data.cbSize=sizeof(NOTIFYICONDATA); !d N[9}
CString tip; mLuNl^)3
tip.LoadString(IDS_ICONTIP); =sYILe[
data.hIcon=GetIcon(0); U*[E+Uq}:N
data.hWnd=GetSafeHwnd(); l1 Kv`v\
strcpy(data.szTip,tip); 0$)Q@#
data.uCallbackMessage=IDM_SHELL; PyQ.B*JJ
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; S[F06.(1
data.uID=98; -'$ob~*
Shell_NotifyIcon(NIM_ADD,&data); :/T\E\Qr
ShowWindow(SW_HIDE); 8 ??-H0P
bTray=TRUE; a&_