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:
^F_c'
7TlOF 一、实现方法
!WAbO(l lKwI lp 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:
OBu$T& 'Kc;~a #pragma data_seg("shareddata")
_AK-AY HHOOK hHook =NULL; //钩子句柄
(AV j_Cw UINT nHookCount =0; //挂接的程序数目
rfoLg static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
gh3_})8c static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
8BBuYY{ static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
02?y% static int KeyCount =0;
&@nI(PXv static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
8*6U4R #pragma data_seg()
~#OnA1) <Y<%=` 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
".~,(* | [P!9e DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
C+jlIT+ N9idk}T BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
O*T(aM3r cKey,UCHAR cMask)
,D;d#fJ {
Pe~[qETv BOOL bAdded=FALSE;
X`#vH8 for(int index=0;index<MAX_KEY;index++){
lg~Gkd6 if(hCallWnd[index]==0){
-PoW56 hCallWnd[index]=hWnd;
_-^a8F>/19 HotKey[index]=cKey;
eY;XF.mF HotKeyMask[index]=cMask;
t 8|i>(O bAdded=TRUE;
D8G5,s-. KeyCount++;
;MR8E9 break;
3hGYNlQ^ }
(jtrQob }
;",W&HQbE return bAdded;
GK~uoz:^O }
t#=W'HyW8 //删除热键
|!,;IoZ BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
1F{c5 {
SwXVa/9a" BOOL bRemoved=FALSE;
?
0p_/mZ for(int index=0;index<MAX_KEY;index++){
,F!zZNW9 if(hCallWnd[index]==hWnd){
E WrIDZi if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
3c}@_Yn hCallWnd[index]=NULL;
fl9`Mgu HotKey[index]=0;
3fM8W>
*7 HotKeyMask[index]=0;
Iw~R@, bRemoved=TRUE;
WBK6Ug KeyCount--;
BF
b<"!Y break;
T]HeS( }
"A6m-xE~ }
QVJq% P }
+0_e a~{ return bRemoved;
oIrO%v:'! }
lK
5@qG# SYkwM6 s'b 4Me DLL中的钩子函数如下:
UQc!"D FC@h6\+a LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
?(0=+o(` {
($'W(DH4 BOOL bProcessed=FALSE;
2RG6m=Y8y if(HC_ACTION==nCode)
~G,_4}#"pM {
X|y(B%: if((lParam&0xc0000000)==0xc0000000){// 有键松开
vJ9I z switch(wParam)
VddHK {
d<K2
\:P{} case VK_MENU:
R-LMV MaskBits&=~ALTBIT;
( RO-~- break;
70Jx[3vr case VK_CONTROL:
& %A&&XT9 MaskBits&=~CTRLBIT;
!mHMFwvS break;
eu={6/O case VK_SHIFT:
`Y O(C<r- MaskBits&=~SHIFTBIT;
Pm&h v*D break;
& 6'Rc#\P default: //judge the key and send message
sPX&XqWx break;
,.9k)\/V }
}C4wED. for(int index=0;index<MAX_KEY;index++){
s|IY
t^ if(hCallWnd[index]==NULL)
Znr@-=xZO* continue;
5C0![$W> if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
iR?}^|] {
6S`0<Z;;/ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
~=va<%{
U bProcessed=TRUE;
VWq]w5oQO }
'_d4[Olu }
o1`\*]A7J }
I+=+ ,iXhB else if((lParam&0xc000ffff)==1){ //有键按下
b:Z&;A|"{ switch(wParam)
A:yHClmn {
y+3+iT@i case VK_MENU:
E75/EQ5p]p MaskBits|=ALTBIT;
3ew4QPT' break;
[ ?%q,>F case VK_CONTROL:
>)F "lR:o MaskBits|=CTRLBIT;
is
}>+&_ break;
]Hp>~Zvbb case VK_SHIFT:
G/*;h,NbNr MaskBits|=SHIFTBIT;
DA1?M' N break;
.7]P-]uOZ default: //judge the key and send message
o?Aj6fNY? break;
Z1#u&oX }
~8s2p%~ for(int index=0;index<MAX_KEY;index++){
<d @9[]
if(hCallWnd[index]==NULL)
CP~mKmMV continue;
&&nbdu if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
Ve2{;`t {
2n)?)w]!M SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
p^CTHk_| bProcessed=TRUE;
#x;,RPw5 }
84vd~Cf9 }
aaP_^m O }
wBcoh~
(y if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
K+pVRDRcs for(int index=0;index<MAX_KEY;index++){
yQuL[#p if(hCallWnd[index]==NULL)
6<2H 7' continue;
9 w$m\nV if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
3pg=9*{ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
*,mI=1 //lParam的意义可看MSDN中WM_KEYDOWN部分
AHRJ7l;a }
|>yWkq }
8l_M 0F, }
J$Z=`=]t+ return CallNextHookEx( hHook, nCode, wParam, lParam );
2]1u0-M5L }
}x?F53I) h%:rJ_#Zl 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
4;fuS_(X CHsg2S BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
>!6|yk`GJ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
U@M3.[jw w8XCU>
| 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
In?=$_p ;I&VpAPx LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
N ai5!_' {
?u|@,tQ[ if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
CJ*
D {
_Z23lF9 //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
$c9-Q+pZ SaveBmp();
XEgJ7h_ return FALSE;
VGmvfhf#" }
r/2=
nE …… //其它处理及默认处理
5?lc%,-& }
7~SwNt, 0?<#! F}5d>nw 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
6Q^~O*cw V&w2pp0 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
I |U'@E .E<nQWz8 二、编程步骤
gxN>q4z L-T,[;bl 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
DcW?L^Mst Ut;`6t 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
HwFX,? Iko]c_W0 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
VG);om7`PD g w"
\pD
4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
N-gYamlQ fbNzRXw 5、 添加代码,编译运行程序。
!R=@Nr> gv''A" 三、程序代码
unLhI0XW /'+>/ ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
j{@6y #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
Mf1(4F #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
Ks-$:~?5": #if _MSC_VER > 1000
j,.\QwpU #pragma once
u=
NLR\ #endif // _MSC_VER > 1000
Ax;=Zh<DAv #ifndef __AFXWIN_H__
1z?}'&: #error include 'stdafx.h' before including this file for PCH
T.4&P#a1 #endif
m1l6QcT1 #include "resource.h" // main symbols
p+;& Gg54 class CHookApp : public CWinApp
f8Iddm# {
p+CUYo( public:
iRzFA!wH CHookApp();
<s9?9^!!V^ // Overrides
cJ;Nh>ey // ClassWizard generated virtual function overrides
Jsz!ro //{{AFX_VIRTUAL(CHookApp)
Z!)~?<gcq: public:
n t}7|h| virtual BOOL InitInstance();
p;O%W@n" virtual int ExitInstance();
UFG_ZoD+ //}}AFX_VIRTUAL
uu9M}]mDl //{{AFX_MSG(CHookApp)
yD7BZI
xW // NOTE - the ClassWizard will add and remove member functions here.
i[o 2(d, // DO NOT EDIT what you see in these blocks of generated code !
nlwqS Xw //}}AFX_MSG
vADiW~^Q^ DECLARE_MESSAGE_MAP()
\D7bTn };
X@rA2);6 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
~HZdIPcC BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
5*AXL.2ih BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
nHseA BOOL InitHotkey();
OT9]{|7 BOOL UnInit();
rtV`Q[E #endif
KK){/I=z &mwd0%4 //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
E/P~HE{ #include "stdafx.h"
O>~,RI! #include "hook.h"
<+`%=r)4 #include <windowsx.h>
.%zcm #ifdef _DEBUG
=V^-@ji)b #define new DEBUG_NEW
l8\UO<^fY #undef THIS_FILE
\|]mClj# static char THIS_FILE[] = __FILE__;
C=:<[_m` #endif
VdLoi\-/L #define MAX_KEY 100
H@Dpht>[ #define CTRLBIT 0x04
T @ c~ql #define ALTBIT 0x02
0j.K?]f)h #define SHIFTBIT 0x01
E}@C4pS #pragma data_seg("shareddata")
"
kDiK`i HHOOK hHook =NULL;
J2YQdCL UINT nHookCount =0;
z3oi( static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
3k Ci5C static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
fB+L%+mr8 static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
y&/IJst&aq static int KeyCount =0;
t" .Ytz> static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
BVQy@:K/ #pragma data_seg()
D(!^$9e9b HINSTANCE hins;
p4`1^}f&Ie void VerifyWindow();
o
NtFYY BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
: T*Q2 //{{AFX_MSG_MAP(CHookApp)
#9vC]Gm // NOTE - the ClassWizard will add and remove mapping macros here.
Shm> r@C? // DO NOT EDIT what you see in these blocks of generated code!
/^.|m3 //}}AFX_MSG_MAP
(WM3(US| END_MESSAGE_MAP()
aurs~ vgz`+Zj*S CHookApp::CHookApp()
"y1Iu {
|=?#Xbxz // TODO: add construction code here,
NAbVH{*\U // Place all significant initialization in InitInstance
asT-=p_ 0. }
oQ!M+sRmF N[%u>! CHookApp theApp;
T$4{fhV
\ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
Sc)^k {
_?{7%(C BOOL bProcessed=FALSE;
J K
k0f9) if(HC_ACTION==nCode)
C?PQ>Q!f- {
Z_d"<k}I if((lParam&0xc0000000)==0xc0000000){// Key up
;_<R +w3- switch(wParam)
uO?+vYAN {
{o=?@ $6C case VK_MENU:
NGx3f3 9 MaskBits&=~ALTBIT;
6TtB3;5 break;
8nz({Mb9Z case VK_CONTROL:
U{U"%XdO MaskBits&=~CTRLBIT;
Q;M\fBQO}& break;
?,} u6tH case VK_SHIFT:
TT$Ao MaskBits&=~SHIFTBIT;
ys[Li.s: break;
:^;c(>u{ default: //judge the key and send message
R.~[$G! break;
odRiCiMH }
9!FX*}dC for(int index=0;index<MAX_KEY;index++){
!jCgTo
y if(hCallWnd[index]==NULL)
)vp0X\3q` continue;
S,Y|;p<+^ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
NvR{S /Z {
$TQhr#C] SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
-yqsJGY bProcessed=TRUE;
|)-kUu }
j8Z, :op }
U1RU2M]v }
Q$jEmmm%V[ else if((lParam&0xc000ffff)==1){ //Key down
Dk1& <} I switch(wParam)
L@}PW)# {
7)66e case VK_MENU:
0-2|(9
Kc MaskBits|=ALTBIT;
,:_c-d# break;
h$cm:uks case VK_CONTROL:
R4?>C-; MaskBits|=CTRLBIT;
7|rH9Bc{U break;
tne_]+ case VK_SHIFT:
sZ;|NAx) MaskBits|=SHIFTBIT;
h
><Sp*z_V break;
E$8JrL default: //judge the key and send message
mxc)Wm<4 break;
Q7%4 `_$! }
kfy!T rf for(int index=0;index<MAX_KEY;index++)
6Q.S {
.l}Ap7@ if(hCallWnd[index]==NULL)
H4/wO continue;
_|k$[^ln^ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
\Mf>X\} {
PEMkx"h + SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
9 {4yC9Oz> bProcessed=TRUE;
G6SgVaM }
)rc!irac] }
?gH[la }
tUn>=>cWP if(!bProcessed){
Q
eeV< for(int index=0;index<MAX_KEY;index++){
"wUIsuG/p if(hCallWnd[index]==NULL)
pYr"3BwG continue;
J<)qw if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
k,h602( SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
d{z[46> }
jhu
&Wh }
`lf_wB+I }
-,bFGTvYQ return CallNextHookEx( hHook, nCode, wParam, lParam );
'&>"`q }
,
X5.|9 1.hWgW DP BOOL InitHotkey()
exRw, Nk4 {
7DB_Z/uU if(hHook!=NULL){
'yo@5*x7 nHookCount++;
FX:`7c]:9 return TRUE;
#]#9Xq }
x*7@b8J else
<_?zln:4. hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
j,IRUx13f if(hHook!=NULL)
!MbzFs~ nHookCount++;
Hv,|XE@Y return (hHook!=NULL);
Ufr@j` * }
pR0[qsQM BOOL UnInit()
?R`S- {
QcegT/vO if(nHookCount>1){
WBe0^=x nHookCount--;
FO{=^I5YA return TRUE;
1 ZdB6U0 }
PKm|?kn{0( BOOL unhooked = UnhookWindowsHookEx(hHook);
$l.*;h * if(unhooked==TRUE){
r
)|3MUj nHookCount=0;
i~B?p[ hHook=NULL;
8}/DD^M }
r(,U{bU< return unhooked;
HC`0Ni1 }
sXLW';Fz >.:+|Br` BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
n@p]v* {
}{0}$#zu BOOL bAdded=FALSE;
F72#vS
j for(int index=0;index<MAX_KEY;index++){
So%X(,
| if(hCallWnd[index]==0){
fN vQ.; hCallWnd[index]=hWnd;
RTtKf i} HotKey[index]=cKey;
C{)1#<` HotKeyMask[index]=cMask;
C6+ 5G-Z bAdded=TRUE;
O\}C`CiC KeyCount++;
yD[d%w break;
Cq5.gkS< }
Mf5j'n }
kHM Jh~ return bAdded;
]m1fo' }
0uy'Py@2< # :+Nr BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Y,]Lk<Hm3 {
_~FfG!H ^X BOOL bRemoved=FALSE;
?0qVyK_1 for(int index=0;index<MAX_KEY;index++){
#qRoTtMq7 if(hCallWnd[index]==hWnd){
U~G7~L &m if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
"8za'@D"f hCallWnd[index]=NULL;
D%>Bj>xQD HotKey[index]=0;
6)[moR{N1 HotKeyMask[index]=0;
Iu'9yb bRemoved=TRUE;
<,vIN,Kl8/ KeyCount--;
f-U zFlU break;
Ku5||u.F4* }
X'A`"}=_ }
lg^'/8^f }
r[9m-#)> return bRemoved;
v>X!/if<y }
EEe$A?a; DYX{v`>f^ void VerifyWindow()
.ARYCTyG {
y4\X~5kU for(int i=0;i<MAX_KEY;i++){
iSfRJ:_&6 if(hCallWnd
!=NULL){ S!K<kn`E3
if(!IsWindow(hCallWnd)){ U1\EwBK8*T
hCallWnd=NULL; 3Tr,waV
HotKey=0; ammi4k/
HotKeyMask=0; fe .=Z&
KeyCount--; c!w[)>v
} '1u?-2
} i?L=8+9f
} ,%!m%+K9a
} VH7t^fb
UiU/p
BOOL CHookApp::InitInstance() C T~6T&'
{ (g6e5Sgi>
AFX_MANAGE_STATE(AfxGetStaticModuleState()); "LlpZtw
hins=AfxGetInstanceHandle(); >Eh U{@Y
InitHotkey(); s.M39W?
return CWinApp::InitInstance(); p.:651b
} wm@m(ArE=
5Fy dh0.
int CHookApp::ExitInstance() @ZEBtM%.O
{ =DwLNyjU4
VerifyWindow(); 'Oa3
6@
UnInit(); gUiO66#x
return CWinApp::ExitInstance(); 082}=Tsx
} Xj, %t}
nDi^s{
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file [^!SkQ
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) :.PA(97xb
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ V#G)w~
#if _MSC_VER > 1000 <4{m99
#pragma once z|s(D<*w
#endif // _MSC_VER > 1000 @$slGY
&5
7c!)
class CCaptureDlg : public CDialog aEf3hB* ~
{ fW= N
// Construction p22AH%
public: x,nl PU
BOOL bTray; LhG\)>Y%
BOOL bRegistered; {S0-y
BOOL RegisterHotkey(); av'DyNW\
UCHAR cKey; CU=sQfE
UCHAR cMask; D5gj*/"
void DeleteIcon(); $f@YQN=
void AddIcon(); ?N4FB*x
UINT nCount; .!q_jl%U
void SaveBmp(); coCT]<
CCaptureDlg(CWnd* pParent = NULL); // standard constructor Kp7DI0~
// Dialog Data Kebr>t8^
//{{AFX_DATA(CCaptureDlg) hp f0fU
enum { IDD = IDD_CAPTURE_DIALOG }; loA/d
CComboBox m_Key; <NZPLo F
BOOL m_bControl; #7;?Ls
BOOL m_bAlt; cvcZ\y
BOOL m_bShift; &mX_\w/%
CString m_Path; 8K4^05*S
CString m_Number; *+v*VH
//}}AFX_DATA I<}% L
V
// ClassWizard generated virtual function overrides lIyMNw
//{{AFX_VIRTUAL(CCaptureDlg) 9L$OSy|
public: tR51Pw
virtual BOOL PreTranslateMessage(MSG* pMsg); GR|\OJ<2
protected: ~d7t\S
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 2l?^\9&
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); iM!Ya!
//}}AFX_VIRTUAL b}TvQ+W]2
// Implementation v4e4,Nt
protected: Z9:
HICON m_hIcon; -k + jMH
// Generated message map functions ;gBR~W
//{{AFX_MSG(CCaptureDlg) &G2&OFAr]q
virtual BOOL OnInitDialog(); cr;:5D%_
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); Kyx9_2
afx_msg void OnPaint(); +-tFg XG
afx_msg HCURSOR OnQueryDragIcon(); Cl'$*h
virtual void OnCancel(); ]QlW{J
afx_msg void OnAbout(); *I :c@iCNJ
afx_msg void OnBrowse(); 7V%P
afx_msg void OnChange(); qu^g~"s
//}}AFX_MSG $e1.y b%
DECLARE_MESSAGE_MAP() 9(t(sP_
}; ;6 @sC[
#endif HGAi2+&
LqYyIbsvf
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file Tdh(J",d
#include "stdafx.h" {|>'(iqH"w
#include "Capture.h" fTXip)n!r
#include "CaptureDlg.h" P;"moluE;
#include <windowsx.h> @Ommd{0M
#pragma comment(lib,"hook.lib") # fqrZ9:@
#ifdef _DEBUG 8XJi }YPQ
#define new DEBUG_NEW 1j<uFhi>
#undef THIS_FILE J2}poNmm
static char THIS_FILE[] = __FILE__; ^EiU>
#endif U!uPf:p2
#define IDM_SHELL WM_USER+1 j-d&4,a:c
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); \^6 [^\@[
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); 2|x
!~e.
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; %GTFub0F
class CAboutDlg : public CDialog R?u(aY)P
{ SY|K9$M^
public: eL~xS: VT
CAboutDlg(); 'IY?=#xr'`
// Dialog Data \ Bj{.jL
//{{AFX_DATA(CAboutDlg) &]YyV .
enum { IDD = IDD_ABOUTBOX }; /4O))}TX
//}}AFX_DATA WowT!0$
// ClassWizard generated virtual function overrides $y6 <2w%b
//{{AFX_VIRTUAL(CAboutDlg) U;/2\Ii
protected: QM8Ic,QFvo
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support _<RTes
//}}AFX_VIRTUAL PR5N:Bw
// Implementation | Uics:cQC
protected: {C&Uq#V
//{{AFX_MSG(CAboutDlg) 0g30nr)
//}}AFX_MSG f I=G>[
DECLARE_MESSAGE_MAP() hZfj$|<
}; ]y.V#,6e
(o*YGYC
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) fV4rVy8
{ z'l
HL
//{{AFX_DATA_INIT(CAboutDlg) ~;9n6U
//}}AFX_DATA_INIT |K_%]1*riC
} -+{[.U<1jk
uGz)Vz&3
void CAboutDlg::DoDataExchange(CDataExchange* pDX) 4GP?t4][
{ |dQz(z&6{5
CDialog::DoDataExchange(pDX); !-tw
//{{AFX_DATA_MAP(CAboutDlg) _{c_z*rM8
//}}AFX_DATA_MAP ATqblU>D
} O|sk"YXF
O)`L(
x
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) :+6W%B
//{{AFX_MSG_MAP(CAboutDlg) q83^?0WD
// No message handlers FkrXM!mJ
//}}AFX_MSG_MAP h,FU5iK|
END_MESSAGE_MAP() oc)`hg2=
1N(#4mE=
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) 3F]Dh^IR9
: CDialog(CCaptureDlg::IDD, pParent) #&T O(bk
{ k Nc-@B
//{{AFX_DATA_INIT(CCaptureDlg) p/
xlR[
m_bControl = FALSE; mDz44XO
m_bAlt = FALSE; 3N$@K"qM#
m_bShift = FALSE; "LlQl3"=
m_Path = _T("c:\\"); &(,\~
m_Number = _T("0 picture captured."); 4/~x+tdc
nCount=0; Jy/<
{7j
bRegistered=FALSE; lv=q( &
bTray=FALSE; b5H}0<
//}}AFX_DATA_INIT { Z
k^J
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 <qfAW?tF
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); %W9R08`
} ~<!j]@.
e1a\--
void CCaptureDlg::DoDataExchange(CDataExchange* pDX)
O6NH
{ w^Y/J4 I0
CDialog::DoDataExchange(pDX); !O%!A<3
//{{AFX_DATA_MAP(CCaptureDlg) %:'G={G`QH
DDX_Control(pDX, IDC_KEY, m_Key); AE>W$x8P
DDX_Check(pDX, IDC_CONTROL, m_bControl); #M|lBYdW}
DDX_Check(pDX, IDC_ALT, m_bAlt); o3hgkoF
DDX_Check(pDX, IDC_SHIFT, m_bShift); ;Tr,BfV|Bf
DDX_Text(pDX, IDC_PATH, m_Path); 5e.aTW;U
DDX_Text(pDX, IDC_NUMBER, m_Number); >BO$tbU5b
//}}AFX_DATA_MAP -9FGFBm4]
} ld]*J}cw
:0:Tl/))
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) ?'0!>EjY"
//{{AFX_MSG_MAP(CCaptureDlg) eMnK@J
ON_WM_SYSCOMMAND() T`wDdqWbEG
ON_WM_PAINT() QNOdt 2NN
ON_WM_QUERYDRAGICON() vY_[@y
ON_BN_CLICKED(ID_ABOUT, OnAbout) vN^.MR+<
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) pk9Ics;y
ON_BN_CLICKED(ID_CHANGE, OnChange) 1v|-+p42
//}}AFX_MSG_MAP VA[EY`8
END_MESSAGE_MAP() Hc'Pp{| X
@U8u6JNK'
BOOL CCaptureDlg::OnInitDialog() :.ZWYze
{ h"+7cc@
CDialog::OnInitDialog(); *Z"`g
%,;
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); dscah0T
ASSERT(IDM_ABOUTBOX < 0xF000); H2BRId
CMenu* pSysMenu = GetSystemMenu(FALSE); -y|J_;EG
if (pSysMenu != NULL) )XN%pn
{ -B#1+rUW
CString strAboutMenu; U.,S.WP+d
strAboutMenu.LoadString(IDS_ABOUTBOX); WF`%7A39Af
if (!strAboutMenu.IsEmpty()) E>s+"y
{ zQulPU
pSysMenu->AppendMenu(MF_SEPARATOR); >fWGiFmlk
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); ,i6E L
} uQ-GJI^t
} =(
|%%,3
SetIcon(m_hIcon, TRUE); // Set big icon }qso} WI
SetIcon(m_hIcon, FALSE); // Set small icon ]Z5m_-I
m_Key.SetCurSel(0); y/\b0&
RegisterHotkey(); }qM^J;uy
CMenu* pMenu=GetSystemMenu(FALSE); 53{\H&q
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); TiI /I`A
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); l SdA7
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); 8^}/T#l
return TRUE; // return TRUE unless you set the focus to a control {WV"]O8IV
} N_bgW QY
Xd%qebK
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) X3G593ts
{ :W0p36"
if ((nID & 0xFFF0) == IDM_ABOUTBOX) 12U]=
{ sMGo1pG(
CAboutDlg dlgAbout; N_NN0
dlgAbout.DoModal(); ? Vd~
} eR \duZ!`
else BS fmS(.
{ :
B&~q$
CDialog::OnSysCommand(nID, lParam); c ^ds|7i]a
} Axsezr/
} jKmjZz8L]%
# &.syD#
void CCaptureDlg::OnPaint() T"{~mQ*
{ kMCP .D45;
if (IsIconic()) <VhmtT%7
{ THhxj)
CPaintDC dc(this); // device context for painting fE~KWLm
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); se %#U40*
// Center icon in client rectangle + )Qu,%2
int cxIcon = GetSystemMetrics(SM_CXICON); _">F]ptI;
int cyIcon = GetSystemMetrics(SM_CYICON); YCiG~y/~
CRect rect; T;(,9>Qsu
GetClientRect(&rect); 9JP:wE~y
int x = (rect.Width() - cxIcon + 1) / 2; >
f X^NX
int y = (rect.Height() - cyIcon + 1) / 2; K +vD&Z^
// Draw the icon (G>su
dc.DrawIcon(x, y, m_hIcon); HNS^:XR
} P}8hK
else %>Gb]dv?
{ :4V5p
=v-
CDialog::OnPaint(); 9<?w9D.1
} HSNj
} ;SU<T^a
?h4[yp=w
HCURSOR CCaptureDlg::OnQueryDragIcon() %cn1d>M+I
{ 6"G(Iq'2t3
return (HCURSOR) m_hIcon; "L]v:lg3
} ]Ik~TW&
}&=l)\e
void CCaptureDlg::OnCancel() OU%"dmSDk
{ 5
NYS@76o7
if(bTray) 5Jo'h]
DeleteIcon(); m+'1c}n^7
CDialog::OnCancel(); -lJ|x>PG'
} a?+C]u?_D
c;]\$#2
void CCaptureDlg::OnAbout() \;Q(o$5<
{ Jn{)CZ
CAboutDlg dlg; t RU/[?!
dlg.DoModal(); !QwB8yK@
} L?nhm=D
MXaik+2
void CCaptureDlg::OnBrowse() >bV3~m$a+
{ ?<t?G
CString str; dYISjk@
BROWSEINFO bi; it H
char name[MAX_PATH]; @I4HpY7:
ZeroMemory(&bi,sizeof(BROWSEINFO)); F'[Y.tA ,#
bi.hwndOwner=GetSafeHwnd(); #9TL5-1y
bi.pszDisplayName=name; 1oO(;--u_
bi.lpszTitle="Select folder"; ;U4O` pZ
bi.ulFlags=BIF_RETURNONLYFSDIRS; uxxk&+M
LPITEMIDLIST idl=SHBrowseForFolder(&bi); [,Rc&7p~R
if(idl==NULL) 1sg:8AA
return; _qPKdGoM
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); ]zj#X\
str.ReleaseBuffer(); 7fypUQ:y
m_Path=str; IrYj#,xJ
if(str.GetAt(str.GetLength()-1)!='\\') &I-:=ir
m_Path+="\\"; q0%QMut%
UpdateData(FALSE); Pxf>=kY
} >6Pe~J5,:
VE]TT><
void CCaptureDlg::SaveBmp() #L!`n)J"
{ Ec<33i]h*p
CDC dc; UucX1%
dc.CreateDC("DISPLAY",NULL,NULL,NULL); r8 YM#dF
CBitmap bm; t"Du
int Width=GetSystemMetrics(SM_CXSCREEN); ,$t1LV;o=
int Height=GetSystemMetrics(SM_CYSCREEN); g0B-<>E
bm.CreateCompatibleBitmap(&dc,Width,Height); tb?TPd-OY
CDC tdc; @:w^j0+h
tdc.CreateCompatibleDC(&dc); -`5]%.E&8
CBitmap*pOld=tdc.SelectObject(&bm); xT&/xZLT
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); !j7mY9x+
tdc.SelectObject(pOld); AB%i|t
BITMAP btm; "
l|`LjP5M
bm.GetBitmap(&btm); [H\0
'
DWORD size=btm.bmWidthBytes*btm.bmHeight; r[ k
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); <[ dt2)%L>
BITMAPINFOHEADER bih; " TCJT390
bih.biBitCount=btm.bmBitsPixel; h(kPf]0
bih.biClrImportant=0; wclj9&k
bih.biClrUsed=0; k+[oYd
bih.biCompression=0; rx|
,DI
bih.biHeight=btm.bmHeight; <=|^\r
!}&
bih.biPlanes=1; 1:<n(?5JI
bih.biSize=sizeof(BITMAPINFOHEADER); p}==aNZK
bih.biSizeImage=size; "a;$uW@.6
bih.biWidth=btm.bmWidth; 7@ONCG
bih.biXPelsPerMeter=0; j9c:SP5
bih.biYPelsPerMeter=0; q<.k:v&
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); U^[AW$WzU
static int filecount=0; i;~.kgtq4
CString name; :-59~8&
name.Format("pict%04d.bmp",filecount++); W"s/8;
name=m_Path+name; &^&0,g?To
BITMAPFILEHEADER bfh; p&\QkI=
bfh.bfReserved1=bfh.bfReserved2=0; l@w\
Vxr
bfh.bfType=((WORD)('M'<< 8)|'B'); XC<'m{^(m
bfh.bfSize=54+size; \'g7oV;>cI
bfh.bfOffBits=54; wG:RvgX}
CFile bf; <z60EvHg
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ 7>zUT0SS
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); [H!do$[>
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); @P0rNO%y
bf.WriteHuge(lpData,size); 5/6Jq
bf.Close(); N4qBCBr(
nCount++; jXmY8||w
} r-S%gG}~E
GlobalFreePtr(lpData); v"
#8^q
if(nCount==1) Edc3YSg%;
m_Number.Format("%d picture captured.",nCount); 7?g({]
else }Uj-R3]}K
m_Number.Format("%d pictures captured.",nCount); `yl|NL
UpdateData(FALSE); A]QGaWK
} }t(5n $go6
;K l'[~z
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) bRFZ:hu l
{ ~~WY?I-
if(pMsg -> message == WM_KEYDOWN) g@O?0,+1
{ ShtV2}s|
if(pMsg -> wParam == VK_ESCAPE) d$\n@}8eZp
return TRUE; 1M)88&
if(pMsg -> wParam == VK_RETURN) )X *_oH=
return TRUE; 1)}hzA
} u-.5rH l
return CDialog::PreTranslateMessage(pMsg); Q>X1 :Zn3
} pdN8hJ
zO9WqP_`iR
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) c<q33dZ!*
{ |R91|-H
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ !}mM"|<
SaveBmp(); &<&eKq
return FALSE; .+8#&Uy
} ^Q0=Ggh
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ `:ZaT('h
CMenu pop; mV}8s]29
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); ;x_T*} CH
CMenu*pMenu=pop.GetSubMenu(0); to_dNJbv
pMenu->SetDefaultItem(ID_EXITICON); FN26f*/
CPoint pt; p;zT #%
GetCursorPos(&pt); It'kO jx]
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); YJz06E1 -9
if(id==ID_EXITICON) !6taOT>v
DeleteIcon(); s 64@<oU<"
else if(id==ID_EXIT) &