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:
cC/h7odY
Ob$``31{s 一、实现方法
w(oK ( /]'e} 热键管理DLL实际上是一个键盘钩子,由它来监视系统的键盘事件。如果有和程序登记符合的按键组合就通知该程序的窗口。为了应用方便,本实例把它做成了一个标准的管理库来为其它的程序通过热键服务,它有两个输出函数:AddHotkey()和DeleteHotkey(),程序只需要调用这两个函数就可以了,如果编译之后不用改变热键,则只需要AddHotkey就可以了。DLL中的所有的全局变量都放在一个共享段中,定义如下:
2v{WX E%mEfj7 #pragma data_seg("shareddata")
x92^0cMf HHOOK hHook =NULL; //钩子句柄
2R/|/>T v UINT nHookCount =0; //挂接的程序数目
: K|
H/kht static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
oZBD.s static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
c*IrZm static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
h( | T. static int KeyCount =0;
\L Q+
n+ static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
^DYS~I%s #pragma data_seg()
:q9! "jL>P) 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
H>TO8;5( zgb$@JC 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:
6K.2VY# 7+HK_wNi BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
fL*7u\m: cKey,UCHAR cMask)
~o'1PAW7 {
?ko#N?hgI BOOL bAdded=FALSE;
y7HFmGM for(int index=0;index<MAX_KEY;index++){
/!5Wd(: if(hCallWnd[index]==0){
bmG`:_ hCallWnd[index]=hWnd;
Q"&Mr+ HotKey[index]=cKey;
$_.t'8F HotKeyMask[index]=cMask;
_b&|0j:Ud bAdded=TRUE;
<C`bf$ak KeyCount++;
d/d)MoaJ*t break;
0*{(R# }
!l[;,l }
D3Q+K return bAdded;
o 4F'z }
&da=hc,>% //删除热键
u
BEwYQB BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
[Sm<X {
khy'Y&\F; BOOL bRemoved=FALSE;
a#p+.)Wm for(int index=0;index<MAX_KEY;index++){
w'@gzK if(hCallWnd[index]==hWnd){
Ks.b).fH if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
!5*VBE\ hCallWnd[index]=NULL;
qTuR[( HotKey[index]=0;
kvbZx{s HotKeyMask[index]=0;
w.m8SvS&b bRemoved=TRUE;
?|M-0{ KeyCount--;
/2K"Mpf8 break;
R~g|w4a@sC }
^+(5[z }
fK/: }
3BMz{ny= return bRemoved;
SAm%$vz%M }
^|/mn!7wD XFhH+4#] mEY#QN[eq DLL中的钩子函数如下:
Gk:fw#R /H'- }C LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
Ct=bZW"j/ {
d@3DsE.{i BOOL bProcessed=FALSE;
hW*o;o7u if(HC_ACTION==nCode)
0,hs%x>v {
J^+w]2`S if((lParam&0xc0000000)==0xc0000000){// 有键松开
/?81Ypt switch(wParam)
-zK>{)Z=q {
n.+*_c8 k case VK_MENU:
S#ryEgc] MaskBits&=~ALTBIT;
Jh+;+" break;
$yO B- case VK_CONTROL:
Bl\:YYd MaskBits&=~CTRLBIT;
}IygU 6{G break;
'o&d!
case VK_SHIFT:
- (s0f MaskBits&=~SHIFTBIT;
P>_O :xD break;
o)I)I/v default: //judge the key and send message
t w4,gW break;
l,|Llb }
9B~&d(Bm for(int index=0;index<MAX_KEY;index++){
~(GvjB/C8 if(hCallWnd[index]==NULL)
2|k$Vfz continue;
FG${w.e< if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
%M
x|"ff {
MZ38=nJ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
`}Y)l:G*g bProcessed=TRUE;
hWly8B[I }
}8#olZ/(q }
JE O$v|X }
o@A`AA9 else if((lParam&0xc000ffff)==1){ //有键按下
21!X[)r switch(wParam)
QGNKQ`~ {
4&E"{d
> case VK_MENU:
(^yaAy#4 MaskBits|=ALTBIT;
HQ+{9Z8
?5 break;
4QQt 0u0 case VK_CONTROL:
fTEZ@#p MaskBits|=CTRLBIT;
sm18u- break;
i&DbZ=n2 case VK_SHIFT:
DVd8Ix <
MaskBits|=SHIFTBIT;
fDr$Wcd~ break;
(H:c80/V default: //judge the key and send message
C2<TR PT break;
4`?PtRX }
r 2:{r`ocM for(int index=0;index<MAX_KEY;index++){
qX}3}TL if(hCallWnd[index]==NULL)
-O &>HA continue;
:[@rA;L if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
/US% s {
0=,Nz SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
QYH#WrIVx bProcessed=TRUE;
{
{?-&
yA }
A^}# }
|}{gE=] }
/BgXY}JC. if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
nHRsr x for(int index=0;index<MAX_KEY;index++){
OK4r) if(hCallWnd[index]==NULL)
[ as,AX continue;
3^KR{N p if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
<IWg]AJT: SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
1{/Cr K/o //lParam的意义可看MSDN中WM_KEYDOWN部分
6!i`\>I] }
<5L99<E }
F7'MoH }
Dt!KgI3 return CallNextHookEx( hHook, nCode, wParam, lParam );
'-myOM7 }
~g{1lcqQP H%vgPQ8 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
p7AsNqEp I3
6@x`f BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
j![1 BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
QcWg }alq~jY 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
7x.j:{2 2aTq?ZR|8A LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
(6/aHSXI {
F
u5zj\0J if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
!hJ!ck]M {
WCY._H>|
//lParam表示是按下还是松开,如果有多个热键,由wParam来区分
KHP/Y{mH SaveBmp();
.0,G4k/yv return FALSE;
2iKteJ@h) }
t[;-gi,, …… //其它处理及默认处理
WUauKRR. }
v~x`a0 K:e[#b8:R j0"4X 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
^KD1dy3( ]Ky`AG`2~ 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
#"oLz"{ Qn$YI9t 二、编程步骤
C/
VHzV%q l?b*T#uIk 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";
% dtn*NU z(,j)". 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
;>/Mal <k3KCt 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;
`
>>]$ZJ ;9#%E 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
CXGMc)#>f Hi2JG{i 5、 添加代码,编译运行程序。
ts@w 9|
n gJ{az 三、程序代码
,Y|
;V fg,vTpBk ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
-`\n/"#X6i #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
+_ 8BJ #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
-|u
yJh #if _MSC_VER > 1000
}s"].Xm^2 #pragma once
N2|NYDQs #endif // _MSC_VER > 1000
f fI=Bt]t #ifndef __AFXWIN_H__
^} Y}Iz #error include 'stdafx.h' before including this file for PCH
J!|R1 #endif
?.-+U~ #include "resource.h" // main symbols
mm*nXJ class CHookApp : public CWinApp
sSk qU {
.i )n1 public:
7wY0JS$fz CHookApp();
vV=rBO0a? // Overrides
DTsD<o // ClassWizard generated virtual function overrides
N_FjEZpX //{{AFX_VIRTUAL(CHookApp)
YIIc@) public:
=eS?`| virtual BOOL InitInstance();
LEN=pqGJ. virtual int ExitInstance();
zFDtC-GF //}}AFX_VIRTUAL
o*E32#l //{{AFX_MSG(CHookApp)
:)4c_51 ` // NOTE - the ClassWizard will add and remove member functions here.
A"qDc // DO NOT EDIT what you see in these blocks of generated code !
'n"we#
[ //}}AFX_MSG
<EE^ KR96 DECLARE_MESSAGE_MAP()
4$mtc*tzT };
wSM(!:on5 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
B>S>t5$ BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
_d^d1Q}V BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
G pO*As_2 BOOL InitHotkey();
)lz)h*%# BOOL UnInit();
P;K3T![ #endif
m;1/+qs0 Y]`o-dV //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
I#]pk! #include "stdafx.h"
II=!E #include "hook.h"
OwNo$b]h` #include <windowsx.h>
2 p}I #ifdef _DEBUG
[wJ\.9<Oa #define new DEBUG_NEW
t.\Pn4 #undef THIS_FILE
5yj# 9H static char THIS_FILE[] = __FILE__;
c4Q9foE
#endif
MXDCOe~07 #define MAX_KEY 100
@)!N{x? #define CTRLBIT 0x04
3xdJ<Lrq #define ALTBIT 0x02
W4P+?c>'2 #define SHIFTBIT 0x01
DvLwX1(l #pragma data_seg("shareddata")
1U^KN~! HHOOK hHook =NULL;
i{:iRUC# UINT nHookCount =0;
Jf#-OlEQ static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
_ShWCU-~Z static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
sO(4F8cpU static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
C9""sVs static int KeyCount =0;
;|$o z{Ll static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
?1O`
Rd{tn #pragma data_seg()
mb%U~Na HINSTANCE hins;
f<|*^+ void VerifyWindow();
MR5[|kHJT BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
\~Ml<3Zd: //{{AFX_MSG_MAP(CHookApp)
1;B&R89} // NOTE - the ClassWizard will add and remove mapping macros here.
> sQ&5-i // DO NOT EDIT what you see in these blocks of generated code!
E'6/@xM //}}AFX_MSG_MAP
x;/dSfv_ END_MESSAGE_MAP()
8TU(5:xJo L8Z@Dk7Y CHookApp::CHookApp()
Oz&*A/si+3 {
jT F" // TODO: add construction code here,
~v:IgS // Place all significant initialization in InitInstance
6V@_?a-K }
zKaj<Og T5I#7LN# CHookApp theApp;
|;d#k+/; LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
} *C {
iE_[]Vgc BOOL bProcessed=FALSE;
8$Zwk7 w8A if(HC_ACTION==nCode)
c6h+8QS {
=*zde0T?l if((lParam&0xc0000000)==0xc0000000){// Key up
rKT.~ZP\ switch(wParam)
s aHY9{) {
6-g>(g case VK_MENU:
EgbH{)u MaskBits&=~ALTBIT;
_Y}cK|3 break;
XJy.xI>; case VK_CONTROL:
\j BA4?(S MaskBits&=~CTRLBIT;
Tow! 5VAM break;
QP%Hwt]+ case VK_SHIFT:
0*oavY* MaskBits&=~SHIFTBIT;
Zg>]!^X8 break;
guf*>qNr default: //judge the key and send message
x'OP0],# break;
2+C:Em0yI }
[?qzMFb for(int index=0;index<MAX_KEY;index++){
>msQ@Ch if(hCallWnd[index]==NULL)
h;y}g/HZ continue;
YU)%-V\ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
PBFpV8P, {
~Cg7 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
D&G?Klq bProcessed=TRUE;
>ke.ZZV? }
-Lb7=98 }
FUJ<gqL }
P>_9>k@;Q else if((lParam&0xc000ffff)==1){ //Key down
ZJF+./vN switch(wParam)
N7
hl M {
H Vhd#Q; case VK_MENU:
jAv3qMQA MaskBits|=ALTBIT;
qbCU&G|) break;
r ?<kWR?w case VK_CONTROL:
\&ZEIAe MaskBits|=CTRLBIT;
TA:uB[Ji break;
SD:`l<l case VK_SHIFT:
3^-R_ MaskBits|=SHIFTBIT;
F7nwVDc* break;
ocMTTVo default: //judge the key and send message
4<)*a]\c5M break;
~RwoktO }
#3{}(T7 for(int index=0;index<MAX_KEY;index++)
7#oq|5 {
I|>.&nb if(hCallWnd[index]==NULL)
E?bv<L," continue;
pFZ$z?lI if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
],~[ ^0 {
NXDkGO/* SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
iQT0%WaHl bProcessed=TRUE;
2Oyw#1tdn }
i gjn9p&_ }
m']$)Iqw }
BA@M>j6d if(!bProcessed){
GM1.pVb for(int index=0;index<MAX_KEY;index++){
$>uUn3hSx\ if(hCallWnd[index]==NULL)
OI78wG continue;
=h
+SZXe<r if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
O@W/s!&lFa SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
+ @|u8+ }
j8bA"r1 }
+]NpcE' }
ggkz
fg & return CallNextHookEx( hHook, nCode, wParam, lParam );
% WXl* }
9HiyN>( r&+C% BOOL InitHotkey()
eT5IL(mH {
v@8SMOe% if(hHook!=NULL){
C.LAr~P nHookCount++;
iC^G^ ~V+H return TRUE;
FwHqID_!:l }
/YU8L else
j)@{_tv6; hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
J(maJuY if(hHook!=NULL)
s|c}9/Xe) nHookCount++;
HINk&)FC return (hHook!=NULL);
z7L+wNYwg }
l,(:~KH| BOOL UnInit()
%H&WihQ {
n5BD0q if(nHookCount>1){
#902x*Z'c" nHookCount--;
+/kOUz/] return TRUE;
re#]zc< }
3fXrwmBT8 BOOL unhooked = UnhookWindowsHookEx(hHook);
fkX86 if(unhooked==TRUE){
vdB2T2F nHookCount=0;
iycceZ hHook=NULL;
PO0Od z }
Q)M-f;O return unhooked;
@2d9
7.X }
(vzYgU, -'d`(G" BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
*<SXzJ( {
omy3<6 BOOL bAdded=FALSE;
S% Ky+0 for(int index=0;index<MAX_KEY;index++){
F0zaA if(hCallWnd[index]==0){
fl9VokAT hCallWnd[index]=hWnd;
J&JZYuuf HotKey[index]=cKey;
5=p<"*zJ HotKeyMask[index]=cMask;
mJ5%+.V bAdded=TRUE;
L>E{~yh KeyCount++;
b2[U3)|oO break;
kjdIk9 Y }
\pTC[Ry1 }
^4Xsd h5 return bAdded;
8'TIDu }
H_x}- K]M@t= BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
#8M^;4N>[ {
EL z5P}L6 BOOL bRemoved=FALSE;
Vjo[rUW for(int index=0;index<MAX_KEY;index++){
s?->2gxhx if(hCallWnd[index]==hWnd){
*mWl=J;u if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
i`];xNR' hCallWnd[index]=NULL;
~!7x45(1# HotKey[index]=0;
w,R6:*p5 HotKeyMask[index]=0;
t>*(v#WeZ bRemoved=TRUE;
h?B1Emlq KeyCount--;
I!1+#0SG break;
_!Tjb^ }
l=Pw
yJ }
'X6Y!VDd }
<}8G1<QZ'. return bRemoved;
KQ81Oxu*C }
]F>#0Rdc ru`U/6n void VerifyWindow()
`D=`xSEYl {
3ZyvX]@_ for(int i=0;i<MAX_KEY;i++){
9(z) ^G if(hCallWnd
!=NULL){ ~@X3qja
if(!IsWindow(hCallWnd)){ hDZyFRg
hCallWnd=NULL; D2gyn-]\
HotKey=0; U,6sR
HotKeyMask=0; !io1~GpKS
KeyCount--; 6d/v%-3
} &V+KM"Ow
} N$C+le
} @)[8m8paV
} AcXVfk z
_JTK$\
BOOL CHookApp::InitInstance() } snS~kx
{ K`<HZK
AFX_MANAGE_STATE(AfxGetStaticModuleState()); ~!g2+^G7+P
hins=AfxGetInstanceHandle(); 6Uq;]@k%
InitHotkey(); (3!6nQj-t
return CWinApp::InitInstance(); Fo;:GX,b
} g.%} +5
AL,7rYZG$
int CHookApp::ExitInstance() xVX:kDX
{ ^ACrWk~UY
VerifyWindow(); ~OvbMWu
UnInit(); 2]5Li/
return CWinApp::ExitInstance(); &=n/h5e0t&
} /N<aN9Z<x,
<%m1+%mA.
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file 6oZHSjC*
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) /QVwZrch
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ g"kI1^[nj
#if _MSC_VER > 1000 >G%oWRk
#pragma once .oT'(6#
#endif // _MSC_VER > 1000 `zw %
= _N[mR^
class CCaptureDlg : public CDialog M<NY`7$^
{ o,c}L9nvt
// Construction p[].4_B;
public: zF>;7'\x
BOOL bTray; w3sU& |N
BOOL bRegistered; |j9aTv[`
BOOL RegisterHotkey(); LW.j)wB]
UCHAR cKey; Jp}\@T.
UCHAR cMask; $\/^O94-l
void DeleteIcon(); YwF&-~mp7n
void AddIcon(); K*b* ]hf{
UINT nCount; Ev7v,7`z
void SaveBmp(); yTK3eK
CCaptureDlg(CWnd* pParent = NULL); // standard constructor !QbuOvw
// Dialog Data hwL`9.w
//{{AFX_DATA(CCaptureDlg) vyJ8"
#]qY
enum { IDD = IDD_CAPTURE_DIALOG }; ">3t+A
CComboBox m_Key; |&W4Dkn
BOOL m_bControl; 'xG J;pY
BOOL m_bAlt; b)e;Q5Z(.
BOOL m_bShift; .s,04xW\
CString m_Path; 5XB]p|YU~s
CString m_Number; QKq4kAaJ!
//}}AFX_DATA FJCORa@?_
// ClassWizard generated virtual function overrides 6B7*|R>
//{{AFX_VIRTUAL(CCaptureDlg) esBv,b?*
public: 8OV=;aM?{
virtual BOOL PreTranslateMessage(MSG* pMsg); {,h_T0D^j
protected: K\fD';
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support JA9NTu(
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); /!?Tv8TPp
//}}AFX_VIRTUAL :):vB
// Implementation 4;AQ12<[1
protected: r4K9W90
HICON m_hIcon; h^Yh~84T
// Generated message map functions T8|?mVv s
//{{AFX_MSG(CCaptureDlg) myN2G?>;
virtual BOOL OnInitDialog(); \z FCph4
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); ,VEE<*'X
afx_msg void OnPaint(); ~1}fL 1~5
afx_msg HCURSOR OnQueryDragIcon(); w6X:39d
virtual void OnCancel(); oi,KA
afx_msg void OnAbout(); Et(H6O8
afx_msg void OnBrowse(); O#18a,o@
afx_msg void OnChange(); .$W}
//}}AFX_MSG 71P. 9Iz
DECLARE_MESSAGE_MAP() C R?}*
}; p!=8 Pq.
#endif iV?8'^
K39I j_3
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file
%r.C9
#include "stdafx.h" p"~@q} 3
#include "Capture.h" mk!8>XvM
#include "CaptureDlg.h" cQThpgha
#include <windowsx.h> 5WRqeSGh
#pragma comment(lib,"hook.lib") uuF~+=.|
#ifdef _DEBUG VWK/(>TP
#define new DEBUG_NEW HDzeotD
#undef THIS_FILE kJO Z;X=9/
static char THIS_FILE[] = __FILE__; dnwzf=+>e
#endif Gsy>"T{CY
#define IDM_SHELL WM_USER+1 8,RqhT)2#
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); iM:-750n/
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); DA>nYj-s
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; zZRLFfz<9
class CAboutDlg : public CDialog -#/DK
{ <b_K*]Z
public: rDoMz3[w
CAboutDlg(); N2[j By8M
// Dialog Data K3tW Y
4-
//{{AFX_DATA(CAboutDlg) UukY9n];]
enum { IDD = IDD_ABOUTBOX }; 1(# H%
//}}AFX_DATA vShB26b
// ClassWizard generated virtual function overrides Z+);}>-5
//{{AFX_VIRTUAL(CAboutDlg) o_Y?s+~i[/
protected: O_th/hl
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support AT3HHQD
//}}AFX_VIRTUAL dJ])`S
// Implementation 0k?]~f
protected: (yd(ZY
//{{AFX_MSG(CAboutDlg) 7zE1>.
//}}AFX_MSG l,b,U/3R.
DECLARE_MESSAGE_MAP() !XI9evJw
}; z4(\yx
u0oTqD?
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) rZ-< Ryg
{ _]Ob)RUVH
//{{AFX_DATA_INIT(CAboutDlg) E2cZk6~m{
//}}AFX_DATA_INIT P2s\f;Dwr
} ]K>bSK^TX
BLqK5~
void CAboutDlg::DoDataExchange(CDataExchange* pDX) ;ud"1wH
{ AOcUr)
CDialog::DoDataExchange(pDX); z+wegF
//{{AFX_DATA_MAP(CAboutDlg) hDUU_.q)D
//}}AFX_DATA_MAP N:+EGmp
} -p7
HQ/
\j wxW6>
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) |)%H_TXTy
//{{AFX_MSG_MAP(CAboutDlg) 0
.T5%
_/
// No message handlers *x p_#
//}}AFX_MSG_MAP wnXU=
END_MESSAGE_MAP() Q\xDAOEL
t&5 Ne ?
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) jll|y0
: CDialog(CCaptureDlg::IDD, pParent) })(robBkA
{ IIBS:&;+-
//{{AFX_DATA_INIT(CCaptureDlg) 152s<lu1Z
m_bControl = FALSE; a7u*d`3X=
m_bAlt = FALSE; I|;zGmg#k
m_bShift = FALSE; !a!4^zqp
m_Path = _T("c:\\"); IFa~`Gf [
m_Number = _T("0 picture captured."); +tg${3ti_
nCount=0; Rd]<591
bRegistered=FALSE; JHZjf7g$k
bTray=FALSE; 3X ',L*f
//}}AFX_DATA_INIT J#3[,~
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 2*
TIr
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); .Xe_Gp"x
} ,->5 sJ{U
4:b'VHW.
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) itiSZL,
{ L@Qvj-5e
CDialog::DoDataExchange(pDX); #a
tL2(wJ
//{{AFX_DATA_MAP(CCaptureDlg) DZH2U+K
DDX_Control(pDX, IDC_KEY, m_Key); akCCpnX_d
DDX_Check(pDX, IDC_CONTROL, m_bControl); "<)Jso|
DDX_Check(pDX, IDC_ALT, m_bAlt); =kK%,Mr
DDX_Check(pDX, IDC_SHIFT, m_bShift); v|]"uPxH?
DDX_Text(pDX, IDC_PATH, m_Path); 8$X3 J[_j
DDX_Text(pDX, IDC_NUMBER, m_Number); lU$0e09
//}}AFX_DATA_MAP @g" vuaG}
} (q}LirR
.XkVdaX
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) ;7H^;+P
//{{AFX_MSG_MAP(CCaptureDlg) hK{<&T
ON_WM_SYSCOMMAND() ~>~qA0m"m
ON_WM_PAINT() 8=0I4\
ON_WM_QUERYDRAGICON() Y5"HKW^
ON_BN_CLICKED(ID_ABOUT, OnAbout) ,]n~j-X
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) 3r,Kt&2$
ON_BN_CLICKED(ID_CHANGE, OnChange) Wfc~"GQq4
//}}AFX_MSG_MAP <viC~=k;
END_MESSAGE_MAP() 0O]v|
*_}0vd
BOOL CCaptureDlg::OnInitDialog() *uy<Om
{ )_4()#3
CDialog::OnInitDialog(); Jm< uE]9
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); P6'Se'f8
ASSERT(IDM_ABOUTBOX < 0xF000); 7~k=t!gTY
CMenu* pSysMenu = GetSystemMenu(FALSE); |pq9i)e&
if (pSysMenu != NULL) 0bIgOLP
{ x5/&,&m`%
CString strAboutMenu; M1*bT@6
strAboutMenu.LoadString(IDS_ABOUTBOX); tp&|*M3
if (!strAboutMenu.IsEmpty()) o?a3hD
{ *BF[thB:a
pSysMenu->AppendMenu(MF_SEPARATOR); x#R6Ez7
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); 39F
e#u
} /Bh*MH
} j4]3}t0q
SetIcon(m_hIcon, TRUE); // Set big icon $p$p C/:%
SetIcon(m_hIcon, FALSE); // Set small icon Y}<%~z#.4
m_Key.SetCurSel(0); E\;%,19Ob
RegisterHotkey(); GCfVH?Vx
CMenu* pMenu=GetSystemMenu(FALSE); %k )H7nj
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); AS;qJ)JfzQ
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); %NC/zqPH~
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); MOnTp8
return TRUE; // return TRUE unless you set the focus to a control #Q*V9kvU/H
} v=cQ`nou
uI%7jA~@
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) tAI
v+L
{ VYO1qj
if ((nID & 0xFFF0) == IDM_ABOUTBOX) K{"hf:k
{ V{A`?Jl6{
CAboutDlg dlgAbout; )58~2vR
dlgAbout.DoModal(); \[^!
ys
} 2+~gZxHq
else DrC"M*$!
{ %2g<zdab
CDialog::OnSysCommand(nID, lParam); 9|v%bO
} |5X[/Q*K`W
} W\;|mEEu
IAq
o(Qm
void CCaptureDlg::OnPaint() yO!M$aOn/
{ a_?b<
if (IsIconic()) gTU5r4xm~
{ \x]\W#C
CPaintDC dc(this); // device context for painting c<MF:|(}
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); Vp|?R65S*
// Center icon in client rectangle , c{ckm
int cxIcon = GetSystemMetrics(SM_CXICON); 7C,giCYU
int cyIcon = GetSystemMetrics(SM_CYICON); &vn2u bauS
CRect rect; GdVF;
GetClientRect(&rect); U"+W)rUd
int x = (rect.Width() - cxIcon + 1) / 2; U,;796h
int y = (rect.Height() - cyIcon + 1) / 2; ,u PcQ
// Draw the icon k{N!}%*2
dc.DrawIcon(x, y, m_hIcon); UXJblo#
} v:yU+s|kN
else : MjDcI~
{ ]W`?0VwF
CDialog::OnPaint(); c"Vp5lo0
} _N^w5EBC]
} jlU6keZh`
)`R}@(r.
HCURSOR CCaptureDlg::OnQueryDragIcon() .SER,],P
{ qIsf!1I?
return (HCURSOR) m_hIcon; Rb&9!z
} Ddpcov
]S[?tn
void CCaptureDlg::OnCancel() `?3f76}h
{ 7H< IO`
if(bTray) Y_+#|]=$B
DeleteIcon(); m}s.a.x
CDialog::OnCancel(); '6&o:t
} /[\g8U{5B}
}P.Z}n;Uj
void CCaptureDlg::OnAbout() L-D4>+
{ rlY0UA,
CAboutDlg dlg; oYZ
4F
dlg.DoModal(); rMbq_5}
}
v>B412l
__.MS6"N
void CCaptureDlg::OnBrowse() f?)7MR=
{ <;PKec
CString str; J*$%d1
BROWSEINFO bi; $$1t4=Pz
char name[MAX_PATH]; "}*D,[C5e
ZeroMemory(&bi,sizeof(BROWSEINFO)); wb?k
bi.hwndOwner=GetSafeHwnd(); ge
GhM>G
bi.pszDisplayName=name; `7:uc@
bi.lpszTitle="Select folder"; eQu(3 sYb
bi.ulFlags=BIF_RETURNONLYFSDIRS; j0; ~2W#G*
LPITEMIDLIST idl=SHBrowseForFolder(&bi); :1j8!R5
if(idl==NULL) X%IqZ{{
return; -GPJ,S V>
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); Nyy&'\`!
str.ReleaseBuffer(); jo<xrn\
m_Path=str; HC6U_d1-6
if(str.GetAt(str.GetLength()-1)!='\\') C:t>u..
m_Path+="\\"; #[{{&sN
UpdateData(FALSE); EpMxq7*
} >U{iof<
/)Cfm1$ic
void CCaptureDlg::SaveBmp() VbvP!<8
{ T3{~f
CDC dc; .F 6US<]
dc.CreateDC("DISPLAY",NULL,NULL,NULL); },l
i'r#p
CBitmap bm; \j`0f=z_
int Width=GetSystemMetrics(SM_CXSCREEN); <lf692.3
int Height=GetSystemMetrics(SM_CYSCREEN); $e7%>*?m
bm.CreateCompatibleBitmap(&dc,Width,Height); BKg8p]`+
CDC tdc; {k_\1t(/
tdc.CreateCompatibleDC(&dc); `K.C>68
CBitmap*pOld=tdc.SelectObject(&bm); x'x5tg
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); xj>P5\mW#
tdc.SelectObject(pOld); fe/;U=te
BITMAP btm; .b3h?R*&
bm.GetBitmap(&btm); JVX)>2&$
DWORD size=btm.bmWidthBytes*btm.bmHeight; 8O'bCBhv
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); >80k5$t
BITMAPINFOHEADER bih; : x&R'wX-
bih.biBitCount=btm.bmBitsPixel; Gc`PO
bih.biClrImportant=0; .))jR:{3
bih.biClrUsed=0; 3&^hf^yg
bih.biCompression=0; "@eGgQ
bih.biHeight=btm.bmHeight; I 0~'z f
bih.biPlanes=1; {kk%_q
bih.biSize=sizeof(BITMAPINFOHEADER); //2O#Fg{/
bih.biSizeImage=size; ?pW1}:z
bih.biWidth=btm.bmWidth; ;um)JCXz
bih.biXPelsPerMeter=0; l&+O*=#Hh
bih.biYPelsPerMeter=0; A[+)PkR
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); *HR
pbe2
static int filecount=0; ?K[Y"*y2
CString name; ay7\Ae]
name.Format("pict%04d.bmp",filecount++); `CS\"|z
name=m_Path+name; FE!jN-#
BITMAPFILEHEADER bfh; +Pl)E5W!=`
bfh.bfReserved1=bfh.bfReserved2=0; :6nD "5(
bfh.bfType=((WORD)('M'<< 8)|'B'); ^Qx?)(@
bfh.bfSize=54+size; U 3a2wK
bfh.bfOffBits=54; q8d](MaX
CFile bf; Ow/,pC >V
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ +fXwbZ?p
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); aKriO
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); }g/u.@E
bf.WriteHuge(lpData,size); 4)w,gp
bf.Close(); Z|n|gxe
nCount++; {O2=K#J
} +s}&'V^
GlobalFreePtr(lpData); q!:dZES
if(nCount==1) [n[dr@J7v
m_Number.Format("%d picture captured.",nCount);
U=~?ca
else *0>`XK$mWo
m_Number.Format("%d pictures captured.",nCount); MT~^wI0a
UpdateData(FALSE); ]!{S2x&"
} ]M*`Y[5"
I:TbZ*vi~
BOOL CCaptureDlg::PreTranslateMessage(MSG* pMsg) u @Ze@N%
{ S=r0tao,!v
if(pMsg -> message == WM_KEYDOWN) TxPFl7,r
{ &RZO\ZT
if(pMsg -> wParam == VK_ESCAPE) ) 1AAL0F\B
return TRUE; T-a>k.}y
if(pMsg -> wParam == VK_RETURN) GfELL`yz
return TRUE; =6dAF"b)
} NF8<9
return CDialog::PreTranslateMessage(pMsg); )%@7tx
} Q^f{H.
Gf"TI:xa
LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) i4|R0>b
{ AaYH(2m-
if(message==WM_HOTKEY&&lParam==WM_KEYDOWN){ !ddyJJ^a
SaveBmp(); Q[#}Oh6$
return FALSE; ?0t^7HMP
} L=#NUNiXr
if(message==IDM_SHELL&&lParam==WM_RBUTTONUP){ zfKO)Itd
CMenu pop; P$U"y/
pop.LoadMenu(MAKEINTRESOURCE(IDR_MENU1)); H\QkU`b
CMenu*pMenu=pop.GetSubMenu(0); W\zZ&*8$
pMenu->SetDefaultItem(ID_EXITICON); J~5V7B
CPoint pt; S9l,P-X`
GetCursorPos(&pt); 0vjCSU-X
int id=pMenu->TrackPopupMenu(TPM_RIGHTALIGN|TPM_NONOTIFY|TPM_RETURNCMD|TPM_LEFTBUTTON,pt.x,pt.y,this); <rE>?zvm
if(id==ID_EXITICON) j$q5m 24L
DeleteIcon(); ~wDXjn"U&
else if(id==ID_EXIT) &NBH'Rt
OnCancel(); BEaF-*?A
return FALSE; @??3d9I
} ar<8wq<4G
LRESULT res= CDialog::WindowProc(message, wParam, lParam); CK n2ZL
if(message==WM_SYSCOMMAND&&wParam==SC_MINIMIZE) _dm0*T ?
AddIcon(); &qS%~h%2
return res; F^gTID
} BjfVNF;hk:
I/njyV)H
void CCaptureDlg::AddIcon() $97O7j@
{ /8e}c`
NOTIFYICONDATA data; cRf F!EV
data.cbSize=sizeof(NOTIFYICONDATA); X~jdOaq{F:
CString tip; c`xNTr01
tip.LoadString(IDS_ICONTIP); ,)[9RgsE
data.hIcon=GetIcon(0); b$DiDm
data.hWnd=GetSafeHwnd(); U/enq,-F^
strcpy(data.szTip,tip); 0]SWyC
:
data.uCallbackMessage=IDM_SHELL; ikc1,o
data.uFlags=NIF_ICON|NIF_MESSAGE |NIF_TIP ; eI:[o
data.uID=98; ? #rXc%F
Shell_NotifyIcon(NIM_ADD,&data); oY^I|FEOz
ShowWindow(SW_HIDE); Yc]V+NxxQ
bTray=TRUE; |2l-s 1|y
} -0CBMoe
INr1bAe$
void CCaptureDlg::DeleteIcon() teS>t!d
{ fc3 nQp7
NOTIFYICONDATA data; ym{@w3"S
data.cbSize=sizeof(NOTIFYICONDATA); 5Qq/nUR
data.hWnd=GetSafeHwnd(); {C5:as
data.uID=98; eP]y\S*P
Shell_NotifyIcon(NIM_DELETE,&data); #1haq[Uv7
ShowWindow(SW_SHOW); 'l^Bb#)"
SetForegroundWindow(); IVh5SS
ShowWindow(SW_SHOWNORMAL); ,}IcQu'O
bTray=FALSE; X0
|U?Ib?
}
/#Pm'i>B
u"qu!EY2
void CCaptureDlg::OnChange() "j_iq"J
{ "a[;{s{{.
RegisterHotkey(); qI uo8o}
} ,<L4tp+y0
)<V!lsUx'-
BOOL CCaptureDlg::RegisterHotkey() &Gh,ROo4
{ mj'~-$5T
UpdateData(); ltuV2.$
UCHAR mask=0; /= ;,lC
UCHAR key=0; [`GSc6j
if(m_bControl) PFX,X
mask|=4; c]Epg)E
if(m_bAlt) f DXK<v)
mask|=2; 4nm.ea|
if(m_bShift) ^rJTlh
9
mask|=1; &