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:
lMBX!9z N&fW9s} 一、实现方法
sK@Y!oF}\ 4L=$K2R2r 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:
& =73D1A 9jO`gWxV8* #pragma data_seg("shareddata")
cX%: HHOOK hHook =NULL; //钩子句柄
5=Kq@[(4 UINT nHookCount =0; //挂接的程序数目
@sw9A93A static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
qGnPnQc static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
VY/|WD~"CW static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
,<@,gZru static int KeyCount =0;
J?UA:u static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
D:wnO|: #pragma data_seg()
,
Aq9fyC% Hp btj 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。
l`@0zw+ PXw|
L 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:
dqqnCXYuW !1a}| !Zn BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
Hf VHI1f cKey,UCHAR cMask)
izMYVI?0 {
:KEq<fEI BOOL bAdded=FALSE;
"\}b!gl$8 for(int index=0;index<MAX_KEY;index++){
~?#~ Ar if(hCallWnd[index]==0){
`-VG ?J hCallWnd[index]=hWnd;
;\N79)Gk HotKey[index]=cKey;
B@-|b HotKeyMask[index]=cMask;
jcE Msc bAdded=TRUE;
=0,|/1~ KeyCount++;
8tU>DJ}0 break;
YWEYHr;%^? }
PPEq6} }
6DB0ni return bAdded;
k@S)j< }
vX ?aB!nkw //删除热键
4S tjj!ew BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
H"eS<eT {
Uo~T'mA" BOOL bRemoved=FALSE;
u t$c)_ for(int index=0;index<MAX_KEY;index++){
tZbFvk2 if(hCallWnd[index]==hWnd){
ML=eL*}l if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
I!P4(3skAB hCallWnd[index]=NULL;
JnY$fs*" HotKey[index]=0;
rvwa!YY} HotKeyMask[index]=0;
O$^xkv5. bRemoved=TRUE;
09'oz*v{# KeyCount--;
C0QM#"[ break;
&:<, c12 }
z`4c 4h]I }
b]T@gJ4H= }
ow/U return bRemoved;
L_~8"I_ }
b?8)7.{F{ h$`#YNd' "oR@JbdX DLL中的钩子函数如下:
rh66_eV &dr@6-xaq LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
s3:9$.tiR[ {
/`3#4=5- BOOL bProcessed=FALSE;
]n;1x1' if(HC_ACTION==nCode)
XRxj W {
.XS9,/S if((lParam&0xc0000000)==0xc0000000){// 有键松开
-R
b{^/ switch(wParam)
o:~LF6A- {
#$E)b:xj case VK_MENU:
1& ^?U{ MaskBits&=~ALTBIT;
l$XPIC~H break;
mV)+qXC case VK_CONTROL:
r^1+cwy/7P MaskBits&=~CTRLBIT;
;wHCj$q break;
) #+^
sAO case VK_SHIFT:
M'L;N!1A MaskBits&=~SHIFTBIT;
n}?wVfEy break;
R[jEvyD>( default: //judge the key and send message
^5; `-Ky break;
Ef)yQ }
U*)m', for(int index=0;index<MAX_KEY;index++){
F_H82BE+3 if(hCallWnd[index]==NULL)
e<cM[6H'D continue;
5Qh?>n>* if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
\ck+GW4& {
AUe# RP SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
n, i'Dhzk bProcessed=TRUE;
<RNJ>>0 }
om h{0jA0 }
ZJ*g))k7 }
9DQa
PA6 else if((lParam&0xc000ffff)==1){ //有键按下
O1'm@
q) switch(wParam)
x1&W^~ {
tptN6Isuh case VK_MENU:
NMOut@ MaskBits|=ALTBIT;
Xx:F)A8O break;
~@.%m"<. case VK_CONTROL:
0tg8~H3yy MaskBits|=CTRLBIT;
%ru;;h break;
R:Q0=PzDi# case VK_SHIFT:
Xce0~\_A MaskBits|=SHIFTBIT;
#n0Y6Pr break;
1K,1X(0rL8 default: //judge the key and send message
fjk\L\1 break;
r$Co0!. }
2_vbT!_ for(int index=0;index<MAX_KEY;index++){
)WT>@ if(hCallWnd[index]==NULL)
Tou/5?#%e continue;
]I3!fEAWR if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
m<FOu<y {
<\kr1qHH SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
EBz}|GY; bProcessed=TRUE;
Z87_ #5 }
M@0;B30L }
q[`j`8YY!R }
oy<WsbnS if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
,|&9M^ for(int index=0;index<MAX_KEY;index++){
2^i(gaXUQ if(hCallWnd[index]==NULL)
Reatdh continue;
NaX if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
-B86U6^s SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
mZd ,
9 //lParam的意义可看MSDN中WM_KEYDOWN部分
(}}S9 K }
{e|[%reSkg }
E Cyyl }
dAy?EO0\7 return CallNextHookEx( hHook, nCode, wParam, lParam );
O)vp~@| }
-[-wkC8a lok= 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:
nqLA}u4IM j_Yp>=+[ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
qgfi\/$6 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
1dK*y'rx T?X_c"{8M 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:
K.0:C`C E~6c -Lw LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
<_7*67{ {
r(P(Rj2~ if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
H-
$)3"K {
*6VF
$/rP //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
@H=:)*; SaveBmp();
/{&tY:;m return FALSE;
9gmW&{6q }
}"|K(hq …… //其它处理及默认处理
.nVa[B|. }
yPal<c x U4 +|d NGbG4-w- 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。
$69oV: WHj'dodS 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
Hhcpp7cr' MB~=f[cUnd 二、编程步骤
eLfk\kk]Pc I+tb[*X+ 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
c"B{/;A AHX St 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
f}9zgWU `ojoOB^L 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
{?:X8&Sf sTn<#l6 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
vH :LQ!2 JzQ )jdvp 5、 添加代码,编译运行程序。
*%%g{
3$ z=q3Zo 三、程序代码
]&lY%"U$i v|dBSX9k0 ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
X\{LnZ@r4 #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
jIC_[ #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
"@iK'
c^ #if _MSC_VER > 1000
`4=^cyt+ #pragma once
*Q?tl\E #endif // _MSC_VER > 1000
'>-gi}z7 #ifndef __AFXWIN_H__
l]Ax : Z #error include 'stdafx.h' before including this file for PCH
f4 P8Oz #endif
p@xf^[50k #include "resource.h" // main symbols
&"&Z
#llb class CHookApp : public CWinApp
zv0l,-o {
k_
& :24Lj public:
D$
dfNiCH CHookApp();
WrQD X3 // Overrides
IzikDc10 // ClassWizard generated virtual function overrides
z> Rsi //{{AFX_VIRTUAL(CHookApp)
7puFz4+f public:
oHd FMD@ virtual BOOL InitInstance();
8 OY 3A virtual int ExitInstance();
ZSjMH .Ij" //}}AFX_VIRTUAL
%b&".mN //{{AFX_MSG(CHookApp)
^1iSn)& // NOTE - the ClassWizard will add and remove member functions here.
:W!7mna // DO NOT EDIT what you see in these blocks of generated code !
b6nsg| //}}AFX_MSG
@XLy7_} DECLARE_MESSAGE_MAP()
5D\f8L };
>7lx=T
x LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
}zkHJxZgE BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
XewVcRo BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
TSTl+W BOOL InitHotkey();
`Nz/Oh7 BOOL UnInit();
")O%86_Q: #endif
G_;)a]v8) 5]KW^sL //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
LLk(l#K* #include "stdafx.h"
h1B? 8pD #include "hook.h"
u$DHVRrF< #include <windowsx.h>
z.7cy@N6 #ifdef _DEBUG
\Jx04[= #define new DEBUG_NEW
R<\F:9 #undef THIS_FILE
JlH&?? static char THIS_FILE[] = __FILE__;
15%w 8u #endif
Bc+w+ #define MAX_KEY 100
/(u}KMR!f #define CTRLBIT 0x04
.z]Wyx&/U #define ALTBIT 0x02
>6NRi /[ #define SHIFTBIT 0x01
}#L^! \V} #pragma data_seg("shareddata")
pf1BN@
t HHOOK hHook =NULL;
Z>QF#."m UINT nHookCount =0;
f%SZg!+t static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
0"kbrv2y static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
}Ga\wV static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
G9Y#kBr static int KeyCount =0;
6g 5#TpCh static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
DnC{YK #pragma data_seg()
NG--6\ HINSTANCE hins;
p2ogn}` void VerifyWindow();
P^A!.}d BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
C>-aIz!y //{{AFX_MSG_MAP(CHookApp)
c9HrMgW // NOTE - the ClassWizard will add and remove mapping macros here.
a6D &/8 // DO NOT EDIT what you see in these blocks of generated code!
+fC=UAZ //}}AFX_MSG_MAP
+1uF !G&l END_MESSAGE_MAP()
y+X2Pl /JFUU[W CHookApp::CHookApp()
:Pvzl1 {
|uX,5Q#6 // TODO: add construction code here,
NL!u<6y // Place all significant initialization in InitInstance
9f2UgNqe9 }
:# .<[ :e_V7t)o CHookApp theApp;
5k`l$mW{ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
!qv ea,vw {
01}C^iD BOOL bProcessed=FALSE;
OHeT,@(mh if(HC_ACTION==nCode)
)we}6sE" {
vK9E if((lParam&0xc0000000)==0xc0000000){// Key up
PMNjn9d switch(wParam)
<}E!w_yi {
H7d/X case VK_MENU:
e7m*rh%5> MaskBits&=~ALTBIT;
*QwY]j%^ break;
<g1hxfKx5 case VK_CONTROL:
`V`lo,"\ MaskBits&=~CTRLBIT;
()5[x.xK@ break;
)+[ gd/<C. case VK_SHIFT:
=h0,?]z MaskBits&=~SHIFTBIT;
)Qe~8u@? break;
VKq=7^W default: //judge the key and send message
N>XS=2tzN break;
_CmOd-y }
fQi4\m for(int index=0;index<MAX_KEY;index++){
{[+mpKq if(hCallWnd[index]==NULL)
Kla'lCZ continue;
w2
a1mU/ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
EB2w0a5 {
tnPv70m SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
umiBj)r bProcessed=TRUE;
CDP
U\ZG }
VFRi1\G }
sE:M@`2L }
t5y;CxL else if((lParam&0xc000ffff)==1){ //Key down
[R=yF ~- switch(wParam)
GT0Of~?f {
~/98Id}v case VK_MENU:
nm6h%}xND< MaskBits|=ALTBIT;
v^#~98g] break;
kQEy#JQmB case VK_CONTROL:
BW 4%l MaskBits|=CTRLBIT;
.^h#_[dp break;
] lrWgm case VK_SHIFT:
L*&p! MaskBits|=SHIFTBIT;
]Q>.HH break;
!bN*\c default: //judge the key and send message
2E}*v5b, break;
?}kG`q }
1Cv- for(int index=0;index<MAX_KEY;index++)
mF,Y?ax {
&Low/Y'.jJ if(hCallWnd[index]==NULL)
8W,Jh8N6 continue;
P:k>aHnW if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
X voo= {
/5Oa,NS7 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
}]lr>"~y} bProcessed=TRUE;
UA48Ug }
6L"%e!be6 }
HY&aV2|A1 }
+trC,D if(!bProcessed){
#xX5,r0 for(int index=0;index<MAX_KEY;index++){
%oZ6l* if(hCallWnd[index]==NULL)
amOnqH-( continue;
n%-R[vW if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
* +"9%&? SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
3%E }JU?MM }
ST:A<Da" }
]rWgSID }
Y
}$/e return CallNextHookEx( hHook, nCode, wParam, lParam );
xv(9IEjt0 }
|iE50, YQHw1 BOOL InitHotkey()
>qS9PX {
lQ" p ! if(hHook!=NULL){
6kpg+{; nHookCount++;
&cxRD return TRUE;
'ig&$fz b }
?OcJ)5C4 else
8u6:=fxb hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
O_wEcJPE if(hHook!=NULL)
2NC.Z; nHookCount++;
fZ0M%f return (hHook!=NULL);
'=39+*6? }
Z-^LKe BOOL UnInit()
z6U\axO6 {
V[RF</2T if(nHookCount>1){
&q3"g*q nHookCount--;
%aHB"vi6 return TRUE;
V\>K]mwD }
),0g~'I~D
BOOL unhooked = UnhookWindowsHookEx(hHook);
p)jk>j B if(unhooked==TRUE){
L9r8BK; nHookCount=0;
vleS2-]| hHook=NULL;
]3x? }
QiQ_bB!\ return unhooked;
c?tBi9'Y] }
4;w;'3zq /sUYU(3 BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
P60~V"/P {
A}BVep@D BOOL bAdded=FALSE;
-C;^3R[
O for(int index=0;index<MAX_KEY;index++){
5-|:^hU9 if(hCallWnd[index]==0){
O[\iE5+$ hCallWnd[index]=hWnd;
aAZZ8V HotKey[index]=cKey;
cm&nd'A't HotKeyMask[index]=cMask;
PxTwPl bAdded=TRUE;
RU'=ERYC KeyCount++;
wu7Lk3 break;
$~~Jw] }
Ar%%}Gx/ }
<C_jF return bAdded;
JUsQ,ETn }
+M./@U*g o@r7
n>G
BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
-j+UMlkB {
HD@$t)mn BOOL bRemoved=FALSE;
Gk.
ruQW" for(int index=0;index<MAX_KEY;index++){
e{h<g>7 if(hCallWnd[index]==hWnd){
m.JBOq= if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
=qoWCmg"& hCallWnd[index]=NULL;
7G:s2432 HotKey[index]=0;
"$~':) V" HotKeyMask[index]=0;
:I"2V bRemoved=TRUE;
XQrF4l KeyCount--;
.\\DKh% break;
!lREaSM }
GX)u|g }
>Y&N8PHD }
nxY\|@ return bRemoved;
b1?#81 }
P]<4R:yb N@;?CKU void VerifyWindow()
\n" {qfn`r {
y>R=`A1b for(int i=0;i<MAX_KEY;i++){
u~r=)His if(hCallWnd
!=NULL){ pe0F0Ruy
if(!IsWindow(hCallWnd)){ ~<P
0]ju
hCallWnd=NULL;
bo<~jb{
HotKey=0; NO2XA\
HotKeyMask=0; t#yk->,
KeyCount--; (ScxLf=]
} n+!
AnKq
} 214Ml0/%
} g6W)4cC8a
} Qf58ig-vCY
+cWLjPD/}
BOOL CHookApp::InitInstance() 062,L~&E
{ @M<|:Z %.@
AFX_MANAGE_STATE(AfxGetStaticModuleState()); anuL1fXO
hins=AfxGetInstanceHandle(); ^le<}
InitHotkey(); xpNH?#&
return CWinApp::InitInstance(); =31"fS@
} sI43@[
:KH g&ZX7
int CHookApp::ExitInstance() [l:x'_y
{ H12Fw'2
VerifyWindow(); !y#"l$"xK
UnInit(); 6f;fx}y
return CWinApp::ExitInstance(); 4)E_0.C
} I\hh8abAp
vrl;"Fm+
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file z^KJ*E
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) kM!kD4&
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ Pnw]Tm}g
#if _MSC_VER > 1000 PEN\-*Pv
#pragma once o-;E>N7t
#endif // _MSC_VER > 1000 6L:x^bM
ml2_
]3j!
class CCaptureDlg : public CDialog xE1 eT,
{ <DpevoF
// Construction (VS5V31"
public: L%">iQOG#
BOOL bTray; b>_o xK
BOOL bRegistered; PxF<\pu&
BOOL RegisterHotkey(); 2Fy>.*,?
UCHAR cKey; eeIhed9
UCHAR cMask; ~L]|?d"
void DeleteIcon(); dL:-Y.?0M
void AddIcon(); k")R[)92b?
UINT nCount; %lL.[8r|
void SaveBmp(); =nz}XH%=
CCaptureDlg(CWnd* pParent = NULL); // standard constructor JROM_>mC
// Dialog Data IOTR/anu
//{{AFX_DATA(CCaptureDlg) *?o{9v5}(
enum { IDD = IDD_CAPTURE_DIALOG }; 8'n/?.7cX
CComboBox m_Key; aF8fqu\
BOOL m_bControl; hhb?6]Z/
BOOL m_bAlt; _AYXc] 4%
BOOL m_bShift; b6W2^tr-
CString m_Path; hp8%.V$f
CString m_Number;
rL/H2[d
//}}AFX_DATA $`APHjijN
// ClassWizard generated virtual function overrides Ok>gh2e[c
//{{AFX_VIRTUAL(CCaptureDlg) 2#o>Z4 r{
public: D@G\7KH@
virtual BOOL PreTranslateMessage(MSG* pMsg); ttXXy3G#
protected: "-_fv5jL
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support L Y6;.d$J
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); BLN^ <X/
//}}AFX_VIRTUAL $4-$pL6"
// Implementation 3Uqr,0$p
protected: &-s'BT[PGq
HICON m_hIcon; qNI,
62
// Generated message map functions KiRUvWqa
//{{AFX_MSG(CCaptureDlg)
pnMEB,)
virtual BOOL OnInitDialog(); ~i@Y|38C
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); qe #P?[
afx_msg void OnPaint(); g wz7krUTe
afx_msg HCURSOR OnQueryDragIcon(); HN_d{ 3
virtual void OnCancel(); CQZgMY1{
afx_msg void OnAbout(); b'P eH\h{
afx_msg void OnBrowse(); wpN k+;
afx_msg void OnChange(); }
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//}}AFX_MSG 3:5 &Aa!
DECLARE_MESSAGE_MAP() ?aC'.jH+
}; 6`!Fv-
#endif |nbf'
n$U#:aQE
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file )Y]{HQd
#include "stdafx.h" ii%+jdi.
#include "Capture.h" KQcs3F@t
#include "CaptureDlg.h" df*5,NV'-*
#include <windowsx.h> uqM yoIc
#pragma comment(lib,"hook.lib") @)-sTgn
#ifdef _DEBUG Wqc)Fv70m
#define new DEBUG_NEW D6CS8
~"
#undef THIS_FILE p>vn7;s2#
static char THIS_FILE[] = __FILE__; !icT/5
#endif _8Z_`@0
#define IDM_SHELL WM_USER+1 I6j$X 6u
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); aaKN^fi&
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); ;=geHiQHA
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; I<Ksi~*i
class CAboutDlg : public CDialog m~@;~7I x
{ %ThyOl@O
public: ?9 ! Z<H
CAboutDlg(); 7a#4tqM#
// Dialog Data 53c 0
E
//{{AFX_DATA(CAboutDlg) '7D,m
H
enum { IDD = IDD_ABOUTBOX }; N+LL@[
//}}AFX_DATA PlF87j (
// ClassWizard generated virtual function overrides W3D c r@Dy
//{{AFX_VIRTUAL(CAboutDlg) k=4N(i/s
protected: SF}<{x_
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support 7@Zx@
//}}AFX_VIRTUAL |fxA|/s[<
// Implementation 6lkl7zm
protected: nt;haeJ
//{{AFX_MSG(CAboutDlg) 5nTY ?<x`k
//}}AFX_MSG <EPj$::
DECLARE_MESSAGE_MAP() %uJ<M-@r=u
}; "VkTY|a
KBXK0zWh7
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) 2H/Z_+\
{ Ct2j ZqCDo
//{{AFX_DATA_INIT(CAboutDlg) zUkN 0
//}}AFX_DATA_INIT !>BZ6gn5
} t<T[h2Wd
D'L'#/hK
void CAboutDlg::DoDataExchange(CDataExchange* pDX) AS E91T~
{ {o!KhF:[
CDialog::DoDataExchange(pDX); 'xhcuVl
//{{AFX_DATA_MAP(CAboutDlg) CM<]ZG7
//}}AFX_DATA_MAP
b !%hH
} B=>RH!&
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BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) &;XAuDw4+i
//{{AFX_MSG_MAP(CAboutDlg) J8M$k/"X
// No message handlers %9k!A]KD
//}}AFX_MSG_MAP TMs,j!w?I
END_MESSAGE_MAP() 'fcMuBc+4
JYrY[',u
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) L KCb_9
: CDialog(CCaptureDlg::IDD, pParent) {%VV\qaC
{ hq:&wN7Q
//{{AFX_DATA_INIT(CCaptureDlg) -+7uy.@cS
m_bControl = FALSE; A a=u+
m_bAlt = FALSE; y"6y!
m_bShift = FALSE; 7_.11$E=H
m_Path = _T("c:\\"); Rl qQ
m_Number = _T("0 picture captured."); -b9;5eS!
nCount=0; UPc<gB
bRegistered=FALSE; M
t*6}Cl
bTray=FALSE; /,MJq#@K
//}}AFX_DATA_INIT zaFt*~@X
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 Kx.X 7R
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); UK$ms~H
} Yly@ww9t|
K,6b3kk
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) @*0cMO;SpG
{ R*oXmuOsYA
CDialog::DoDataExchange(pDX); 26dUA~|KJ
//{{AFX_DATA_MAP(CCaptureDlg) @WQK>-=(3
DDX_Control(pDX, IDC_KEY, m_Key); [6)UhS8
DDX_Check(pDX, IDC_CONTROL, m_bControl); ly4s"4v
DDX_Check(pDX, IDC_ALT, m_bAlt); d{3@h+zL
DDX_Check(pDX, IDC_SHIFT, m_bShift); JXixYwm
DDX_Text(pDX, IDC_PATH, m_Path); I.Y['%8,5~
DDX_Text(pDX, IDC_NUMBER, m_Number); ZT[3aXS
//}}AFX_DATA_MAP BnCKSg7V
} R64!>o"nED
Ul_M3"Z
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) anj#@U;!
//{{AFX_MSG_MAP(CCaptureDlg) Qd_Y\PzS
ON_WM_SYSCOMMAND() gP-nluq
ON_WM_PAINT() QDTBWM%
ON_WM_QUERYDRAGICON() osOVg0Gyj
ON_BN_CLICKED(ID_ABOUT, OnAbout) l"{Sm6:;-
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) 6
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ON_BN_CLICKED(ID_CHANGE, OnChange) W(25TbQ
//}}AFX_MSG_MAP :qR=>n=
END_MESSAGE_MAP() Wxkx,q?
T/c<23i
BOOL CCaptureDlg::OnInitDialog() [w0/\]o
{ X; 5Jb
CDialog::OnInitDialog(); /w8"=6Vv~
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); d'*]ns
ASSERT(IDM_ABOUTBOX < 0xF000); lJzl6&
CMenu* pSysMenu = GetSystemMenu(FALSE); X53mzs
if (pSysMenu != NULL) 4J|t?]ij|E
{ B-*E:O0y
CString strAboutMenu; R#n%cXc|
strAboutMenu.LoadString(IDS_ABOUTBOX); 'q>2t}KG
if (!strAboutMenu.IsEmpty()) Uu"0rUzt
{ Um)>2|rp}
pSysMenu->AppendMenu(MF_SEPARATOR); FG%j{_Ez
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); TZ;p0^(
} (>=7ng^
} >sD4R}\})
SetIcon(m_hIcon, TRUE); // Set big icon 1AHx"e,;L
SetIcon(m_hIcon, FALSE); // Set small icon RGIoI]_
m_Key.SetCurSel(0); ?(
=p<TUw
RegisterHotkey(); 1^dJg8
CMenu* pMenu=GetSystemMenu(FALSE); 6yu]GK}es
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); G){g
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); <w>/^|]#
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); 1/ZR*fa
return TRUE; // return TRUE unless you set the focus to a control #fs|BV
!
} w?mEuXc
85IMdZ7I
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) (X +s-4%
{ xMs]Hs
if ((nID & 0xFFF0) == IDM_ABOUTBOX) J4tcQ
{ L{ho*^b
CAboutDlg dlgAbout; r]P, 9
dlgAbout.DoModal(); =q(GHg;'
} g,]@4|
else bm}6{28R
{ sT1&e5`W
CDialog::OnSysCommand(nID, lParam); s?3i)Ymr
} Qn:kz*:
} _2hXa!yO
@!Hr|k|
void CCaptureDlg::OnPaint() b-@\R\T
{ P20|RvE
if (IsIconic()) ,>LRa
{ "Vd_CO
CPaintDC dc(this); // device context for painting g):]'
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); (LJ@SeM;
// Center icon in client rectangle 68R1AqU_
int cxIcon = GetSystemMetrics(SM_CXICON); Vv*NFJ |
int cyIcon = GetSystemMetrics(SM_CYICON); kw,$NK'
CRect rect; mzD^Y<LTd
GetClientRect(&rect); zzZg$9PT[
int x = (rect.Width() - cxIcon + 1) / 2; uH\kQ9f
int y = (rect.Height() - cyIcon + 1) / 2; 8
Op.eYe
// Draw the icon kGN||h
dc.DrawIcon(x, y, m_hIcon); >_X/[<
}
0=6/yc
else ,smF^l
{ cs_}&!c{
CDialog::OnPaint(); uD>z@J-v
} beZ(o?uK
} oP,9#FC|(
GlR~%q-jiQ
HCURSOR CCaptureDlg::OnQueryDragIcon() ,
fb(
WY
{ Vm8D "I5i
return (HCURSOR) m_hIcon; W"hcaa,&
}
FA>1x*;c
=qoRS0Qa
void CCaptureDlg::OnCancel() (U87}}/l
{ Sl~x$9`
if(bTray) Ie'P#e'
DeleteIcon(); FUeq
\Wuo
CDialog::OnCancel(); 3@5p"X
} 6~5$s1Yc
&1)xoZ'\
void CCaptureDlg::OnAbout() #iis/6"
{ $V8vrT#:
CAboutDlg dlg; uhn%lV]
dlg.DoModal(); 0^_MN~s(X
} ,EhVSrh)_4
@R:#"
void CCaptureDlg::OnBrowse() +lp{#1q0
{ 73DlRt
*
CString str; V,QwN&
BROWSEINFO bi; )teFS%
char name[MAX_PATH]; U6WG?$x
ZeroMemory(&bi,sizeof(BROWSEINFO)); ]b[,LwB\`~
bi.hwndOwner=GetSafeHwnd(); Qp:6=o0:
bi.pszDisplayName=name; +cfziQ$'
bi.lpszTitle="Select folder"; 3-Y=EH_0
bi.ulFlags=BIF_RETURNONLYFSDIRS; *Wyl2op6
LPITEMIDLIST idl=SHBrowseForFolder(&bi); 6$B'Q30}r
if(idl==NULL) b!~TAT&8
return; e`DsP8-&v
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); a%[q
|oyR
str.ReleaseBuffer(); %F$N#YG
m_Path=str; ATO
5
if(str.GetAt(str.GetLength()-1)!='\\') =49o U
m_Path+="\\"; T8q[7Zn
UpdateData(FALSE); 3}M\c)
} oYq,u@oM
di_gWE
void CCaptureDlg::SaveBmp() ]N\6h(**wy
{ -c$z 2Q)
CDC dc; Fg@ ACv'@
dc.CreateDC("DISPLAY",NULL,NULL,NULL); U+!UL5k
CBitmap bm; RdkU2Y}V
int Width=GetSystemMetrics(SM_CXSCREEN); 9 x [X<
int Height=GetSystemMetrics(SM_CYSCREEN); FH
-p!4+]
bm.CreateCompatibleBitmap(&dc,Width,Height); 8on[%Vk
CDC tdc; lQr6;D}+
tdc.CreateCompatibleDC(&dc); b3^R,6]x&