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:
SQa.xLU
shnfH 一、实现方法
Y5PIR9 - LdVGFlcXi 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:
* Oyic3F o"QpV
>x #pragma data_seg("shareddata")
kc/h]B HHOOK hHook =NULL; //钩子句柄
NjsP" UINT nHookCount =0; //挂接的程序数目
fs>0{ static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
-[Zau$;J< static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
|WubIj*\{ static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
fgTvwOSk static int KeyCount =0;
M}/%t1^g: static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
iT9cw`A^% #pragma data_seg()
?aO%\<b i!YZF$| 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。
vAwFPqu OdwSNG 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:
sks_>BM D95$ BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
Fk=_Q
LI cKey,UCHAR cMask)
^D oJ='& {
Pgye{{ BOOL bAdded=FALSE;
pN4!*7M for(int index=0;index<MAX_KEY;index++){
owYfrf3ZLX if(hCallWnd[index]==0){
"eh"'Z hCallWnd[index]=hWnd;
Nk}Hvg*( HotKey[index]=cKey;
_[XEL+. HotKeyMask[index]=cMask;
Qpf BM bAdded=TRUE;
(IJf2 KeyCount++;
.9nsW? break;
_2f}WY3S }
JJ qX2B }
=CRaMjN return bAdded;
JR7~|ov }
K%Q^2"Eb0 //删除热键
#J^p,6 BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
{
H9pF2C {
Arfq BOOL bRemoved=FALSE;
\2eYw.I= for(int index=0;index<MAX_KEY;index++){
K"-N:OV if(hCallWnd[index]==hWnd){
?:n{GK if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
`Rj
i=k> hCallWnd[index]=NULL;
@$+l ^"#-] HotKey[index]=0;
UPN2p&gM HotKeyMask[index]=0;
K7e<hdP_# bRemoved=TRUE;
s8eiq`6\H} KeyCount--;
n!HFHy2 break;
z{!wQ~
j }
kQVl8KS }
{6/%w,{, }
8'g/WZY~~ return bRemoved;
Dq2eX;c@ }
QfwGf,0p E8NIH!dI 9iS3.LCfX DLL中的钩子函数如下:
#/1A:ig wJ IJPYTK LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
WYaDN:kZf {
ZMx_J BOOL bProcessed=FALSE;
O8dDoP\F2 if(HC_ACTION==nCode)
gfr``z=>O {
{-17;M$ if((lParam&0xc0000000)==0xc0000000){// 有键松开
JmN;v|wF:c switch(wParam)
_MMz x2} {
y)(SS8JR case VK_MENU:
cs@5K$v MaskBits&=~ALTBIT;
zWjGGTP~3& break;
by8d18:it case VK_CONTROL:
3)dT+lZ MaskBits&=~CTRLBIT;
c1:op@t break;
=4Ex'
%%(U case VK_SHIFT:
cRU. MaskBits&=~SHIFTBIT;
DB>>U>H- break;
|ZRl.C/e default: //judge the key and send message
t.knYO) break;
(!Ml2 }
sV[|op for(int index=0;index<MAX_KEY;index++){
09x\i/nb if(hCallWnd[index]==NULL)
"?avb`YU' continue;
(G$m}ng if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
f#X`e'1 {
R^8Opf_UN SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
\=5CNe bProcessed=TRUE;
Po^2+s(fY }
J`"1DlH }
OWq~BZ{ }
F ^E(AE else if((lParam&0xc000ffff)==1){ //有键按下
RKBjrSZg8 switch(wParam)
c wpDad[Kx {
u $sX6 case VK_MENU:
$X\BO& MaskBits|=ALTBIT;
Hs-NP#I break;
+d'h20 case VK_CONTROL:
RbrvY MaskBits|=CTRLBIT;
%FF
S&vd break;
pr;L~$JW case VK_SHIFT:
spe9^.SI MaskBits|=SHIFTBIT;
K7_)!=DcX break;
T>?sPq default: //judge the key and send message
;j/ur\37 break;
I=3q#^}[ }
1W/=
=+%I for(int index=0;index<MAX_KEY;index++){
S2<(n," if(hCallWnd[index]==NULL)
PDpIU.=!0 continue;
LI
nN-b# if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
"&2D6 {
JL(*peeu3 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
]AHi$Xx bProcessed=TRUE;
YJ75dXc&& }
2%@j<yS }
8D+OF 6CM }
L>@6lhD)x if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
`*N0 Lbl] for(int index=0;index<MAX_KEY;index++){
q2hZ1o if(hCallWnd[index]==NULL)
CMF1<A4] continue;
b1 KiO2
E if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
%@rh\Z SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
@u$oqjK //lParam的意义可看MSDN中WM_KEYDOWN部分
x]{h$yI }
L g%cVSz/C }
wCI.jGSBW }
*2>%>qu return CallNextHookEx( hHook, nCode, wParam, lParam );
8KAyif@1:: }
+h9CcBd G! 87F/ 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
)FHaJ*&d 9#3+k/A BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
\T[*|"RFZ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
tHu8|JrH+ }& 1_gn15 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
>c1mwZS; mS);bs LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
z5i!GJB {
G A7 if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
Gu%`__ {
dj]sr!q+ //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
o 86}NqK SaveBmp();
(JM4W
"7' return FALSE;
`i.f4]r }
@*c+`5)_ …… //其它处理及默认处理
gB0)ec 0 }
!IGVN:E q,*IR*B:a De^is^{ 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
H?aB8=) 4bJ3uIP# 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
fB:M'A' %WO;WxG8^ 二、编程步骤
ZRX>SyM fO:*85%}7 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
~pF'Qw"z| {2q 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
>"Hj=? F^aD!O ~ 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
;=n7 Z k5ZwGJ#r 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
Tok"-$`N ^X_%e | 5、 添加代码,编译运行程序。
lRO8}XSI D{8V^%{ 三、程序代码
lLg23k{' j&&^PH9ZY ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
[XQNgSy?z #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
+(P;4ZOmB #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
w?5b: W, #if _MSC_VER > 1000
@.g4?c #pragma once
>kB?C!\ #endif // _MSC_VER > 1000
(Q'XjN\# #ifndef __AFXWIN_H__
PNKmI #error include 'stdafx.h' before including this file for PCH
c\x?k<= #endif
<<`."RY#0 #include "resource.h" // main symbols
\{&55>
class CHookApp : public CWinApp
<e=0J8V8,i {
nnE@1X3 public:
|_ @iaLE CHookApp();
@
J"1!` // Overrides
r*3;gyG.,# // ClassWizard generated virtual function overrides
LD6fi //{{AFX_VIRTUAL(CHookApp)
G?"1
z; public:
Jz-f1mhQV virtual BOOL InitInstance();
SKS[Lf virtual int ExitInstance();
7;_5[_ //}}AFX_VIRTUAL
c^=:]^ //{{AFX_MSG(CHookApp)
QK@z##U // NOTE - the ClassWizard will add and remove member functions here.
wHY;Y-(ZT // DO NOT EDIT what you see in these blocks of generated code !
r!zNcN(%cs //}}AFX_MSG
<Nw?9P DECLARE_MESSAGE_MAP()
7'o?'He-.2 };
U "}Kth LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
'shOSB BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
]xS< \{og BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
BHU[Rz7x BOOL InitHotkey();
`"bm Hs7 BOOL UnInit();
E+01"G<Q #endif
G>!"XK:fB _&:o"""Wf //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
QvqBT #include "stdafx.h"
X%gJ,c(4 #include "hook.h"
"w A8J%: #include <windowsx.h>
9XoKOR( #ifdef _DEBUG
C{'c_wX #define new DEBUG_NEW
i&l$G55F #undef THIS_FILE
6^wiEnA static char THIS_FILE[] = __FILE__;
Kc(_?` #endif
v` B_xEl #define MAX_KEY 100
YnNei 7R #define CTRLBIT 0x04
^@)+P/& #define ALTBIT 0x02
(0k0gq; #define SHIFTBIT 0x01
A]n!d}? #pragma data_seg("shareddata")
crmnh4- HHOOK hHook =NULL;
*Lufz-[1 UINT nHookCount =0;
!.F\v. static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
[Y:HVr, static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
$4L=Dg static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
"zv+|_ZAfd static int KeyCount =0;
{1qEN_ERx static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
BY 1~\M #pragma data_seg()
D QZS%) HINSTANCE hins;
u}$U|Cw-;T void VerifyWindow();
u!X2ju< BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
Mr&]RTEE //{{AFX_MSG_MAP(CHookApp)
1%+0OmV& // NOTE - the ClassWizard will add and remove mapping macros here.
FTB"C[> // DO NOT EDIT what you see in these blocks of generated code!
?r@ZTuq# //}}AFX_MSG_MAP
!X,S2-}" END_MESSAGE_MAP()
0!?f9kJq uIba{9tM"P CHookApp::CHookApp()
F4PD3E_# {
me9RnPe: // TODO: add construction code here,
Le}q>>o;q // Place all significant initialization in InitInstance
)zt5`"/o }
J^?O]| 1E-$f CHookApp theApp;
N1SR nJu<f LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
{vU '>pp {
|UBJu `% BOOL bProcessed=FALSE;
&iSQ2a!l8b if(HC_ACTION==nCode)
zb3ir| {
>LNl8X:Cz* if((lParam&0xc0000000)==0xc0000000){// Key up
NR3IeTd switch(wParam)
;Joo!CXHO {
}cf-r>WaR case VK_MENU:
.3Ap+V8? MaskBits&=~ALTBIT;
nd?m+C&W break;
:_^YEm+A case VK_CONTROL:
Obd! MaskBits&=~CTRLBIT;
x0#+yP break;
y_nh~& case VK_SHIFT:
j^k{~]+_^] MaskBits&=~SHIFTBIT;
O8lOr(|l break;
dxd}:L~z default: //judge the key and send message
\jfW$TtZm break;
A/.cNen }
l%)XPb2$J for(int index=0;index<MAX_KEY;index++){
Tu"yoF if(hCallWnd[index]==NULL)
*R:nB)(6< continue;
q8p 'bibY if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
nQgn^z# {
n[clYi@e SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
4SOj>(a# bProcessed=TRUE;
$~j]/ U }
*7Mrng }
Oll\T GXP! }
:r6
bw else if((lParam&0xc000ffff)==1){ //Key down
;xRyONt switch(wParam)
@3G3l|~> {
yWs/~5[F case VK_MENU:
fpqKa r MaskBits|=ALTBIT;
&Y,Rm78 break;
abK/!m[q case VK_CONTROL:
)Y:CV,` MaskBits|=CTRLBIT;
HS2)vd@) break;
B>'\g
O\2 case VK_SHIFT:
g,1\Gj%y MaskBits|=SHIFTBIT;
-V+fQGZe break;
ugL$W@ default: //judge the key and send message
[m4<j break;
DS^Q0 f }
H<q:+ for(int index=0;index<MAX_KEY;index++)
dW=]|t& {
Lh0<A% if(hCallWnd[index]==NULL)
HH]LvK continue;
[`:\(( 8 if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
S5XFYQ {
Q[k}_1sWs$ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
|5W u0T bProcessed=TRUE;
K4
>d }
w ggl,+7 }
;+5eE`]a/L }
4}0s^>R if(!bProcessed){
Y/4B*>kl for(int index=0;index<MAX_KEY;index++){
)cvC9gt if(hCallWnd[index]==NULL)
.IgCC_C9 continue;
1ptP ey if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
w</kGK[O SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
\:Nbl<9(9 }
0h5T&U]${Y }
NQOdgp }
9\dC8 return CallNextHookEx( hHook, nCode, wParam, lParam );
-Z#A}h }
| 0&~fY X2EC+< BOOL InitHotkey()
\ET7 {
N (43+ if(hHook!=NULL){
$V@IRBm nHookCount++;
u6D>^qF}@' return TRUE;
+4@EJRC }
Iz ,C!c else
1c\$ziB hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
p(
z.[ if(hHook!=NULL)
"d{ |_Cf nHookCount++;
HtXzMSGo7 return (hHook!=NULL);
;ASlsUE\) }
Xp%JPI { BOOL UnInit()
"EA%!P:d, {
9 /0<Z_b2 if(nHookCount>1){
b&0q%tCK nHookCount--;
>y2gfD return TRUE;
\[Q,>{^ }
tNq~M BOOL unhooked = UnhookWindowsHookEx(hHook);
1YQ|KJ*K if(unhooked==TRUE){
38rC;
6 nHookCount=0;
k|&@xEbS
hHook=NULL;
2'N%KKmJL }
pWeKN` return unhooked;
X62GEqff }
VBy=X\w] rBT#Cyl BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
`2}Mz9mk {
z#*fELV BOOL bAdded=FALSE;
JH5ckgdZ for(int index=0;index<MAX_KEY;index++){
YQ;?N66 if(hCallWnd[index]==0){
|tyVC=${ hCallWnd[index]=hWnd;
j^>J*gLM}W HotKey[index]=cKey;
Fq9AO~z HotKeyMask[index]=cMask;
4y:yFTp bAdded=TRUE;
fgq#Oi} KeyCount++;
}c^`!9 break;
8|HuxE }
3u_[=a }
&KT*rL return bAdded;
P @G2F:} }
pFx7URZA + C aPF BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
%?^IS&]Z {
%;~Vc{Xxt/ BOOL bRemoved=FALSE;
(~#{{Ja
for(int index=0;index<MAX_KEY;index++){
Etj@wy/E if(hCallWnd[index]==hWnd){
,eW K~ pa if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
V+(1U|@~
hCallWnd[index]=NULL;
Il `35~a HotKey[index]=0;
<Y9%oJn% HotKeyMask[index]=0;
Se{}OG) bRemoved=TRUE;
//xK v{3fI KeyCount--;
N8#wQ*MM> break;
>^=upf/ }
TgoaEufS< }
{Cd Q)| }
yb\T<* return bRemoved;
$SQUN*/> }
bnIl@0Y uB_8P+h7 void VerifyWindow()
W US[hx, {
VKqIFM1b for(int i=0;i<MAX_KEY;i++){
G)t_;iNL| if(hCallWnd
!=NULL){ B:J([@\'
if(!IsWindow(hCallWnd)){ iHBetkAu
hCallWnd=NULL; 7@oM?r7td
HotKey=0; `\ _>P@qz
HotKeyMask=0; @G,pM: t
KeyCount--; \MI2^JN
} lY
-2e>
} >xsbXQ>.
} t/%{R.1MN
} Lz6b9W
Sqn|
BOOL CHookApp::InitInstance() Z(F['Zf
{ Fj;];1nt
AFX_MANAGE_STATE(AfxGetStaticModuleState()); JJe8x4
hins=AfxGetInstanceHandle(); *@)0TL(03
InitHotkey(); KTtB!4by
return CWinApp::InitInstance(); Z uFk}R"x
} nQ*9E|Vx
h@AKfE!\~
int CHookApp::ExitInstance() Q3"{v0
{ J,(@1R]KF:
VerifyWindow(); 27J!oin$
UnInit(); G`D rY;
return CWinApp::ExitInstance(); )+7|_7
!x
} >^:*x_a9
{#` O'F>
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file (;!92ct[?
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) )_C+\K*
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ d?ru8
#if _MSC_VER > 1000 cV$an
#pragma once S@Iza9\|@
#endif // _MSC_VER > 1000 ,ArHS
|VX )S!
class CCaptureDlg : public CDialog )fy-]Ky
*
{ <?Ln`,Duk
// Construction =Gv*yR*]t
public: zEVQ[y6BcM
BOOL bTray; $-=xG&fSz
BOOL bRegistered; dvAG}<
BOOL RegisterHotkey(); Iip%er%b
UCHAR cKey; 9epMw-)k
UCHAR cMask; D~ogq]
void DeleteIcon(); r1axC%
void AddIcon(); %g_)_ ~
UINT nCount; ~U r
void SaveBmp();
?kIyo
CCaptureDlg(CWnd* pParent = NULL); // standard constructor oyT`AYa
// Dialog Data -1{f(/
//{{AFX_DATA(CCaptureDlg) 5^ck$af
enum { IDD = IDD_CAPTURE_DIALOG }; _`I}"`2H
CComboBox m_Key; >^6|^rc
BOOL m_bControl; ;9CbioO
BOOL m_bAlt; ^GpLl
BOOL m_bShift; 9])Id;+91
CString m_Path; 3qW](
CString m_Number; i/.#`
//}}AFX_DATA 38 ]}+Bb
// ClassWizard generated virtual function overrides )IVk4|
//{{AFX_VIRTUAL(CCaptureDlg) [g bFs-B2/
public: Cnr=1E=
virtual BOOL PreTranslateMessage(MSG* pMsg); 5e3p9K`5
protected: ;E_Go&Vd
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support /3#h]5Y"T
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); 0tz? sN
//}}AFX_VIRTUAL [uwn\-
// Implementation SBy{sbx4&F
protected: bf=!\L$
HICON m_hIcon; /X]gm\x7s
// Generated message map functions CNe(]HIOH
//{{AFX_MSG(CCaptureDlg) -{}(U
virtual BOOL OnInitDialog(); 6B|OKwL
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); H u9nJ
afx_msg void OnPaint(); znB+RiV8
afx_msg HCURSOR OnQueryDragIcon(); O{7rIy
virtual void OnCancel(); IgjPy5k
afx_msg void OnAbout(); aGOS9
afx_msg void OnBrowse(); G4U0|^(h
afx_msg void OnChange(); (*M0'5
//}}AFX_MSG ;m7~!m)
DECLARE_MESSAGE_MAP() Vm?# ~}T
}; =0L%<@yA
#endif /!J xiGn
ce;$)Ff\
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file @~Ys*]4UE
#include "stdafx.h" L8q#_k
#include "Capture.h" dt@~8kS
#include "CaptureDlg.h" )Tieef*Q~
#include <windowsx.h> ])G|U A.
#pragma comment(lib,"hook.lib") <"K2t
Tg.
#ifdef _DEBUG rb}fP
#j
#define new DEBUG_NEW M@l |n
#undef THIS_FILE 7Vk9{x$z
static char THIS_FILE[] = __FILE__; z;?ztpa@
#endif "@5qjLz]
#define IDM_SHELL WM_USER+1 aS[y\9(**
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); 7IFZK\V
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); {Mj- $G"
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; 7NT0]j(w-
class CAboutDlg : public CDialog M)ao}m>
{ @{UUB=}9
public: ~Ad2L*5S
CAboutDlg(); ~3-"1E>Rgy
// Dialog Data :ssj7wl :
//{{AFX_DATA(CAboutDlg) }
xA@3RT
enum { IDD = IDD_ABOUTBOX }; $IS!GS&:
//}}AFX_DATA +8W5amk.P|
// ClassWizard generated virtual function overrides YcV^Fqi!
//{{AFX_VIRTUAL(CAboutDlg) .N>*+U>>P
protected: S,C c0)j>
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support |QF_E4ISD
//}}AFX_VIRTUAL bI3GI:hp
// Implementation j'Jb+@W?
protected: .#Nf0
//{{AFX_MSG(CAboutDlg) N@Oe[X8
//}}AFX_MSG AbhR*
DECLARE_MESSAGE_MAP() ~(^pGL3<
}; T`pDjT
YM#MfL#
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) 3UmkFK<
{ FfxD=\
//{{AFX_DATA_INIT(CAboutDlg) cl1ygpf(
//}}AFX_DATA_INIT i-;#FT+Xc
} PNd'21N
l53Q"ajG
void CAboutDlg::DoDataExchange(CDataExchange* pDX) <wb6)U.
{ cr<j<#(Z}
CDialog::DoDataExchange(pDX); >q&5Z
//{{AFX_DATA_MAP(CAboutDlg) 2}XRqa.|
//}}AFX_DATA_MAP 1ig*Xp[
} fMUh\u3
N8df1>mW
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) &*'^uCna
//{{AFX_MSG_MAP(CAboutDlg) z/h]Jos
// No message handlers JFO,Q
-y\
//}}AFX_MSG_MAP iZiT/#, H2
END_MESSAGE_MAP() P
qC#[0Qy
^`iz%^
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) V sxI
: CDialog(CCaptureDlg::IDD, pParent) u-y?i`
{ %*!6R:gAp
//{{AFX_DATA_INIT(CCaptureDlg) /YUW)?o!^N
m_bControl = FALSE; i ]8bj5j{
m_bAlt = FALSE; AD<>)(
m_bShift = FALSE; OI6Mx$
m_Path = _T("c:\\"); h!JyFc
m_Number = _T("0 picture captured."); 6nE/8m
nCount=0; 82ixv<B
bRegistered=FALSE; 9 Xl#$d5
bTray=FALSE; Cw(yp u
//}}AFX_DATA_INIT CmbgEGIh[a
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 1goRO
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); 'h0>]A 2|X
} gJuK% P
EVZ1Z
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) ;92xSe"Ww
{ @v@F%JCZ
CDialog::DoDataExchange(pDX); F)X`CG ;t
//{{AFX_DATA_MAP(CCaptureDlg) C P&u
DDX_Control(pDX, IDC_KEY, m_Key); G1e_pszD{o
DDX_Check(pDX, IDC_CONTROL, m_bControl); GRYw_}Aa
DDX_Check(pDX, IDC_ALT, m_bAlt); w9<'0wcs
DDX_Check(pDX, IDC_SHIFT, m_bShift); 4v_Hh<%
DDX_Text(pDX, IDC_PATH, m_Path); ;SjNZi)4d
DDX_Text(pDX, IDC_NUMBER, m_Number); SPdEO3
//}}AFX_DATA_MAP N9#xT X
} vX6JjE!
e21J9e6z
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) +%,oq]<[,
//{{AFX_MSG_MAP(CCaptureDlg) ^78N25RU(
ON_WM_SYSCOMMAND() N0^SWA|S
ON_WM_PAINT() KWjhkRK4]
ON_WM_QUERYDRAGICON() $
-<(geI
ON_BN_CLICKED(ID_ABOUT, OnAbout) ]g ;+7
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) 0\Jeyb2dl
ON_BN_CLICKED(ID_CHANGE, OnChange) =hb)e}l
//}}AFX_MSG_MAP ]o"E4Vht
END_MESSAGE_MAP() Gv dok<o
R\&z3<-S
BOOL CCaptureDlg::OnInitDialog() 1;<Vr<.
{ #o}/'
CDialog::OnInitDialog(); ^?(#%~NS
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); MK/8<i<.
ASSERT(IDM_ABOUTBOX < 0xF000); ,4'y(X<R
CMenu* pSysMenu = GetSystemMenu(FALSE); 8]vut{
if (pSysMenu != NULL) ^&mrY[;S
{ y0T#Qq
CString strAboutMenu; # }}6JM
strAboutMenu.LoadString(IDS_ABOUTBOX); /%,aX[
if (!strAboutMenu.IsEmpty()) 0U*f"5F
{ Z:AB(c
pSysMenu->AppendMenu(MF_SEPARATOR); L"dN
$ A
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); $MQ<QP
} NrXIaN
} xYv;l\20.
SetIcon(m_hIcon, TRUE); // Set big icon +HUy,@^Pa
SetIcon(m_hIcon, FALSE); // Set small icon yFmy
m_Key.SetCurSel(0); G}l9 [lE
RegisterHotkey(); n CX{tqy
CMenu* pMenu=GetSystemMenu(FALSE); `p* 43nV
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); N3\RXXY
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); }0anssC
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); VO {z)_
return TRUE; // return TRUE unless you set the focus to a control ']\SX*z?
} S},Cz
4\|Q;@f
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) W*_c*
{ S!$S'{f<
if ((nID & 0xFFF0) == IDM_ABOUTBOX) D bi ^%
{ H}G 9gi
CAboutDlg dlgAbout; O"o|8
l}M/
dlgAbout.DoModal(); d*6/1vyjT
} -u"|{5? '
else t&w.Wc X)
{ ?<N} Xh
CDialog::OnSysCommand(nID, lParam); $n!5JS@40
} Gukvd6-g9b
} 1Vz^?t:
LdOme[C1
void CCaptureDlg::OnPaint() b|Ge#o
{ (91ts$jH
if (IsIconic()) svxjad@l/
{ 4t%Lo2v!X%
CPaintDC dc(this); // device context for painting 7_j t =sr
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); 3[_WTwX0
// Center icon in client rectangle ,38M6yD
int cxIcon = GetSystemMetrics(SM_CXICON); -^`s#0( y^
int cyIcon = GetSystemMetrics(SM_CYICON); o(?9vU
CRect rect; LfW:G5@-
GetClientRect(&rect); ZQ`4'|"
int x = (rect.Width() - cxIcon + 1) / 2; Zon7G6s9`
int y = (rect.Height() - cyIcon + 1) / 2; h~qvd--p0
// Draw the icon :~W(#T,$E
dc.DrawIcon(x, y, m_hIcon); ;3& wO~lW
} PcZ<JJ16F$
else F,VWi$Po\N
{ pnx^a}|px
CDialog::OnPaint(); D'ZUbAh!
} c'VCCXe
} bk=;=K
Uj 4HVd
HCURSOR CCaptureDlg::OnQueryDragIcon() bxL'k/Y$
{ Hl(W'>*oL
return (HCURSOR) m_hIcon; v)|a}5={
} (gvnIoDl0
)
d'H&c3
void CCaptureDlg::OnCancel() >b0Bvx-
{ u-jc8W`Zd
if(bTray) r7}KV| M
DeleteIcon(); nB :i G
CDialog::OnCancel(); L$!2<eK
} @~7au9.V=X
!U2<\!_
void CCaptureDlg::OnAbout() "^{Hta
{ T.;U~<
CAboutDlg dlg; k[<i+C";
dlg.DoModal(); ${ DSH
} *Ev8f11i&
8~.8"gQ
void CCaptureDlg::OnBrowse() M1 o@v 0
{ l$HBYA\Qh
CString str; /&@q*L
BROWSEINFO bi; 9X#]Lg?b
char name[MAX_PATH]; >OjK0jiPf
ZeroMemory(&bi,sizeof(BROWSEINFO)); gth_Sz5!#
bi.hwndOwner=GetSafeHwnd(); t(.vX
bi.pszDisplayName=name; V5
9Vf[i|
bi.lpszTitle="Select folder"; 9]G~i`QQ
bi.ulFlags=BIF_RETURNONLYFSDIRS; *h5L1Eq
LPITEMIDLIST idl=SHBrowseForFolder(&bi); qn{9vr
if(idl==NULL) Sc}Rs
return; #-"C_~-MH
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); ?TW? 2+
str.ReleaseBuffer(); UIIsgNca
m_Path=str; Aq'~'hS`1
if(str.GetAt(str.GetLength()-1)!='\\') td$RDtW[3
m_Path+="\\"; 0d~?|Nv -
UpdateData(FALSE); pD~."fb
} !T~uxeZ/;
YF;2jl Nm
void CCaptureDlg::SaveBmp() c5KciTD^
{ `tKs|GQf
CDC dc; Pu BE=9,
dc.CreateDC("DISPLAY",NULL,NULL,NULL); p>T
CBitmap bm; .K#'
Fec
int Width=GetSystemMetrics(SM_CXSCREEN); @K#}nKN'
int Height=GetSystemMetrics(SM_CYSCREEN); z<yqQ[
bm.CreateCompatibleBitmap(&dc,Width,Height); zY4y]k8D*
CDC tdc; g~=-
,j|
tdc.CreateCompatibleDC(&dc); L0%W;m
CBitmap*pOld=tdc.SelectObject(&bm); 4VsttT
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); ka_R|xG\
tdc.SelectObject(pOld); (CYQ>)a
BITMAP btm; UhU+vy6)/
bm.GetBitmap(&btm); ~Hx>yn94e
DWORD size=btm.bmWidthBytes*btm.bmHeight; n5fc_N/8O=
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); Yfz`or\@=
BITMAPINFOHEADER bih; }^odUIj
bih.biBitCount=btm.bmBitsPixel; d:z7
U
bih.biClrImportant=0; e>uq/|.!
bih.biClrUsed=0; JRtDjZ4>
bih.biCompression=0; {
"f}
}}l
bih.biHeight=btm.bmHeight; \x8'K
bih.biPlanes=1; |F~U
bih.biSize=sizeof(BITMAPINFOHEADER); Te^_gdf
bih.biSizeImage=size; hb)83mH}
bih.biWidth=btm.bmWidth; o7v9xm+
bih.biXPelsPerMeter=0; ob[G3rfd@Z
bih.biYPelsPerMeter=0; {k'$uW`
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); G*zhy!P
static int filecount=0; G{a_\'7
CString name; qUQP.4Z9 5
name.Format("pict%04d.bmp",filecount++); PnI_W84z
name=m_Path+name; ZRa~miKyM
BITMAPFILEHEADER bfh; m='_O+ $
bfh.bfReserved1=bfh.bfReserved2=0; %=vU
Z4
bfh.bfType=((WORD)('M'<< 8)|'B'); !]z4'* )W
bfh.bfSize=54+size; M=5hp&=
bfh.bfOffBits=54; HJe6h. P
CFile bf; 2P|j<~JS
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ v/Xz.?a\jF
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); Ui"3'OU'
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); _Vt
CC/
bf.WriteHuge(lpData,size); PiNf;b^9
bf.Close(); 07,&weQ
nCount++; -x>2Wb~%
} rGQ([e
GlobalFreePtr(lpData); vH"^a/95|
if(nCount==1) Dv=pX.Z+
m_Number.Format("%d picture captured.",nCount); *OY
Nx4 k
else [O3)s] |
m_Number.Format("%d pictures captured.",nCount); bW^{I,b<F
UpdateData(FALSE); {>X2\.Rl
} _xo;[rEw8
I-/-k.
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) %^;rYn3
{ )6U^!95
if(pMsg -> message == WM_KEYDOWN) {_jbFJ
{ m*>gG{3;
if(pMsg -> wParam == VK_ESCAPE) U/{#~P5s
return TRUE; D.w6/DxaXa
if(pMsg -> wParam == VK_RETURN) >Qs{LEsLb
return TRUE; [85tZr]
} >\s+A2P
return CDialog::PreTranslateMessage(pMsg); p!`S]\XEB
} FMqes5\ 3
\~>7n'd ]
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) SJ&+"S&
{ f"G-',O<
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ 4 :M}Vz-
SaveBmp(); f;3kYh^4
return FALSE; N9PEn[t@
} @F!oRm5
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ <*HsJwr)u
CMenu pop; <s (o?U
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); r]bG,?|
CMenu*pMenu=pop.GetSubMenu(0); '.t{\
pMenu->SetDefaultItem(ID_EXITICON); Pt7yYl&n7^
CPoint pt; "0?"
E\
GetCursorPos(&pt); XWUi_{zn
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); >u?a#5R:m
if(id==ID_EXITICON) )bB
Va^
DeleteIcon(); eY'RDQa
else if(id==ID_EXIT) srd\Mf_Ej
OnCancel(); 2;ac&j1
return FALSE; m=D9V-P
} aj$&~-/
R
LRESULT res= CDialog::WindowProc(message, wParam, lParam); }?,Eb~q
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) wl%I(Cw{]
AddIcon(); ~4`3p=$
return res; X;yThb`iI
} C=P}@| K
n@//d.T
void CCaptureDlg::AddIcon() \|C~VU@
{ mZL0<vU@^
NOTIFYICONDATA data; )bK3%>H#
data.cbSize=sizeof(NOTIFYICONDATA); (Cbm*VL
CString tip; Eyg F,>.4
tip.LoadString(IDS_ICONTIP); pw=o}-P{
data.hIcon=GetIcon(0); &