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:
Bb];qYuCO
BH0@WG7F 一、实现方法
ukV1_QeN[ 1F'j. 1 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:
9)p VDS 8W?/Sg` #pragma data_seg("shareddata")
bet?5Dk HHOOK hHook =NULL; //钩子句柄
}E$^!q{ UINT nHookCount =0; //挂接的程序数目
wy&s~lpV,7 static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
\p"`!n static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
b_*Y5"(* static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
e:IUO1# static int KeyCount =0;
=!_e(J static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
lz X0B&: #pragma data_seg()
%s~MfK.k [3++Q-rR= 关于共享段,有几点重要的说明:一是必须在链接选项里指定该段为共享:一种方法是在project->settings->link->object/library中加上/section:shareddata,rws;第二种方法是在def文件的sections里加上一句shareddata read write shared;第三种指定共享段的方法在程序里加上一句#pragma comment(linker,"section:shareddata,rws")。二是所有的变量必须初始化,否则链接程序会把它放到普通数据段。三是如果不初始化变量,需要在段外用"__declspec(allocate("shareddata")) 变量类型 变量名"的方式定义。
ZK))91;v wmFI? DLL中的两个输出函数分别用来添加/删除热键,函数代码如下:
#5)E4"m "Ko^m(` BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
z.{T`Pn cKey,UCHAR cMask)
My AS'Ki {
HT/zcd)}# BOOL bAdded=FALSE;
,Z*?"d for(int index=0;index<MAX_KEY;index++){
\R45#.
P6X if(hCallWnd[index]==0){
6sb,*uSn% hCallWnd[index]=hWnd;
`,ZsKxI HotKey[index]=cKey;
M xUj7ae HotKeyMask[index]=cMask;
RKaCX: bAdded=TRUE;
gW'aK>*c KeyCount++;
P?*$Wf,~n break;
;X6FhQ;{*0 }
*M;!{)m? }
-~eNC^t;W return bAdded;
!+&"y K@J }
BY"<90kBL //删除热键
>6 [{\uPK BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
Px&*&^Gf[b {
[Y.3miE BOOL bRemoved=FALSE;
[gFpFz|b< for(int index=0;index<MAX_KEY;index++){
~}|)@,N'bm if(hCallWnd[index]==hWnd){
Cul^b_UmP# if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
HF}%Ow
hCallWnd[index]=NULL;
} pE<P;\]k HotKey[index]=0;
TI: -Y@8 HotKeyMask[index]=0;
T1?fC) bRemoved=TRUE;
s =Pwkte KeyCount--;
$-Q,@Bztq break;
dK,j| }
0EfM~u }
p= jD "lq }
wI\v5&X-B return bRemoved;
8C4DOz| }
QbqEe/*$_ FQ>KbZh qczGv2%! DLL中的钩子函数如下:
"NSm2RU3 QkUq%}_0 LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
ext`%$ U7 {
l'T3RC,\ BOOL bProcessed=FALSE;
oEvXZ;F@. if(HC_ACTION==nCode)
!'(bwbd {
a5C% OI< if((lParam&0xc0000000)==0xc0000000){// 有键松开
J3cbDE%^m switch(wParam)
P4"_qxAW {
*[@lp7 case VK_MENU:
a+ZP]3@
7 MaskBits&=~ALTBIT;
?UnOi1"v9 break;
MrEyN8X case VK_CONTROL:
Ko9"mHNB MaskBits&=~CTRLBIT;
]N!382 break;
*@|d7aiO case VK_SHIFT:
IQxY]0\uf6 MaskBits&=~SHIFTBIT;
BO<I/J~b break;
#DpDmMP9R3 default: //judge the key and send message
Qy`{y?T2 break;
+CtsD9PA }
.%;UP7g for(int index=0;index<MAX_KEY;index++){
K5No6dsD if(hCallWnd[index]==NULL)
/10 I}3D continue;
\Fj$^I>C if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
L,V\g^4$K {
n; ;b6s5 SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
j_c0oclSz bProcessed=TRUE;
, A?o }
'0D2e }
}Wjb0V }
% \Nfj)9 else if((lParam&0xc000ffff)==1){ //有键按下
2,?4'0Z@R switch(wParam)
L}lOA,EF {
74hGkf^S case VK_MENU:
0TK+R43_ MaskBits|=ALTBIT;
CsG1HR@ break;
/ 2>\Z ( case VK_CONTROL:
znv2: MaskBits|=CTRLBIT;
XNkw9*IT break;
)?RR1P-ID case VK_SHIFT:
o,(MB[|hQ MaskBits|=SHIFTBIT;
WgPpW!` break;
4tU3+e5h default: //judge the key and send message
2i`N26On break;
H5uWI }
Z5[TmVU for(int index=0;index<MAX_KEY;index++){
<&E3QeK if(hCallWnd[index]==NULL)
TcA+ov>TD continue;
Y,z15i3j? if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
F`g oYwA% {
,\zp&P"p SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
+"rZ< i bProcessed=TRUE;
Rf2$k/lZ }
V~M>K-AL }
{^ 1s }
#aUe7~ if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
6[>UF!.= for(int index=0;index<MAX_KEY;index++){
H^sPC{6+pf if(hCallWnd[index]==NULL)
E8#RG-ci continue;
+[@Ug`5M if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
X'4e)E3*O SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
,":_=Tf. //lParam的意义可看MSDN中WM_KEYDOWN部分
$ KQ7S>T }
=FUORj\O }
'aMT^w4if) }
I@~hz%' return CallNextHookEx( hHook, nCode, wParam, lParam );
s,>1n0a }
-I4-K%%B` LyR to 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:
?LAKH$t 7bOL ,S BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
;hU56lfZ)X BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
9v&{;
%U 4L\bT;dQ|. 为了添加应用程序对热键通知事件的响应,程序中用的办法是重载WindowProc()函数,该函数代码如下:
f@Mm{3&. L9[? qFp LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
] )D\ws)a9 {
o!EPF-: if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
}
_Yk.@J5 {
{tn%HK"> //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
.6S]\dp7~ SaveBmp();
+Z[(s! return FALSE;
/~*U'.V }
.OA_)J7 …… //其它处理及默认处理
xB"o
7, }
k @'85A` Ym6zNb8
bQ L/9f"%kZ 将屏幕图像保存到BMP文件中的任务是由函数SaveBmp()来完成的,具体实现参见代码部分。另外为了顺利实现屏幕抓图,程序中还实现了"托盘"功能,由于这一部分本书在实例中已经专门介绍过了,所以不再赘述,读者朋友可以参考相关实例。
yE L^Y'x? q5J6d+ 最后需要提醒读者朋友们注意的是,源程序的编译与使用时要先编译hook.dll并将其放在系统目录(win2000/NT是system32,98/ME是system),然后编译对话框程序运行即可。
;B>2oq E8#r<=(m 二、编程步骤
so_ +o})Cs`|=A 1、 启动Visual C++,生成一个DLL项目和一个基于对话框的应用程序项目,并将两个项目分别命名为"Hook"和"Capture";
g(m3
& \NwL #bQ~ 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
v&oE!s# ?'uxYeX6 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
.n]P6t
N6H/J_: 4、 使用Class Wizard在"Capture"项目中添加按钮的鼠标单击消息响应函数,并重载对话框的WindowProc()函数;
NFTEp0eP :9!?${4R 5、 添加代码,编译运行程序。
0]3%BgZ(a8 Hp;Dp!PLa 三、程序代码
OV ~|@{6T i~
D, ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
@(2DfrC #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
fwB+f`w` #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
u(V4KUk #if _MSC_VER > 1000
AA34JVm] #pragma once
RbUBKMZU #endif // _MSC_VER > 1000
?z>ZsD #ifndef __AFXWIN_H__
1!<k-vt #error include 'stdafx.h' before including this file for PCH
}.w@.
S" #endif
$$+6=r} #include "resource.h" // main symbols
ukBj@.~ class CHookApp : public CWinApp
e(E6 t_ {
<EKDP>,~ public:
]5b%r;_ CHookApp();
%IG cn48J // Overrides
lgp-/O"T // ClassWizard generated virtual function overrides
ZVu&q{s, //{{AFX_VIRTUAL(CHookApp)
.nX+!EXeS public:
PEZ~og:w virtual BOOL InitInstance();
[|<2BQX virtual int ExitInstance();
RGy4p)z*+ //}}AFX_VIRTUAL
%Z?2.) //{{AFX_MSG(CHookApp)
zM?JLNs]<{ // NOTE - the ClassWizard will add and remove member functions here.
Vh1{8'GQ // DO NOT EDIT what you see in these blocks of generated code !
`iuo([E d //}}AFX_MSG
}ybveZxv5A DECLARE_MESSAGE_MAP()
@+1-_Q`s/R };
m'H%O-h\ LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
v7"' ^sZ? BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
qXO@FW] BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
]0<T,m Z BOOL InitHotkey();
sLh9=Kh` BOOL UnInit();
BhC.#u/
#endif
gd3~R+Kd `ro~l_U;A //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
~ldqg2c #include "stdafx.h"
r<4FF= #include "hook.h"
+BcJHNIB #include <windowsx.h>
v#i,pBj #ifdef _DEBUG
2OFrv=F #define new DEBUG_NEW
.} <$2. #undef THIS_FILE
J5PXmL static char THIS_FILE[] = __FILE__;
aV3:wp]Gn #endif
`PK1zSr #define MAX_KEY 100
a!YpSFr #define CTRLBIT 0x04
mD`v>L #define ALTBIT 0x02
*ZP$dQ #define SHIFTBIT 0x01
m }I@:s2 #pragma data_seg("shareddata")
'&4W@lvyz HHOOK hHook =NULL;
I\J^@&JE UINT nHookCount =0;
;~Y0H9` static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
P wL]v. : static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
o!6gl]U'y9 static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
@MMk=/WDw static int KeyCount =0;
;A)w:"m static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
3x2*K_A5:Q #pragma data_seg()
7,U^v}$ HINSTANCE hins;
4kZX$ct} void VerifyWindow();
Z^w11} BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
U6V+jD}L] //{{AFX_MSG_MAP(CHookApp)
?h)Z ;,} // NOTE - the ClassWizard will add and remove mapping macros here.
|#^##^cF/ // DO NOT EDIT what you see in these blocks of generated code!
Tvf%'%h1 //}}AFX_MSG_MAP
W9>q1 END_MESSAGE_MAP()
L h"K"Uv YI!ecx%/4 CHookApp::CHookApp()
OL|_@Fv`A {
O^(ji8[l // TODO: add construction code here,
E _d^&{j // Place all significant initialization in InitInstance
RL0,QC)e#@ }
GZgu1YR 2uw1R;zw CHookApp theApp;
9&e=s<6dO LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
{,z$*nf {
3dm lP2 BOOL bProcessed=FALSE;
1"k"<{% if(HC_ACTION==nCode)
y7J2:/@[x {
Dj!v+<b if((lParam&0xc0000000)==0xc0000000){// Key up
CjRI!}S switch(wParam)
[]R`h*# {
Cz@[l=-T7 case VK_MENU:
4E[ 9)n+YV MaskBits&=~ALTBIT;
hkOhY3K5 break;
W8hf
Qpw case VK_CONTROL:
y;W|) MaskBits&=~CTRLBIT;
Z9rmlVU6! break;
$*EK
v'g[n case VK_SHIFT:
5&V0(LT]C MaskBits&=~SHIFTBIT;
R7YLI1ov break;
(3kz(6S default: //judge the key and send message
o'nju.' break;
_ZUtQ49 }
owYf1=G for(int index=0;index<MAX_KEY;index++){
+dd\_\ if(hCallWnd[index]==NULL)
26n+v(re continue;
2S'{$m)
if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
m,UMb#7Y {
20glz( SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
t#
cm| bProcessed=TRUE;
.ET@J`"M }
6
6S
I }
E#'JYz@ }
D*!p8J8Ku else if((lParam&0xc000ffff)==1){ //Key down
<)01]lKH switch(wParam)
*xY}?vSs {
#gjhs"$~ case VK_MENU:
EXt?xiha? MaskBits|=ALTBIT;
sp%EA=: E break;
pU4k/v555; case VK_CONTROL:
VKUoVOFvPR MaskBits|=CTRLBIT;
$#q:\yQsPC break;
\ZSZ(p#1 case VK_SHIFT:
dUAZDoLi MaskBits|=SHIFTBIT;
:oRR1k break;
8^bc4(H default: //judge the key and send message
t
As@0`x9 break;
K/)*P4C- }
"[W${q+0x for(int index=0;index<MAX_KEY;index++)
s^:8bFn9$ {
vU5a`0mH if(hCallWnd[index]==NULL)
vFuf{ @P continue;
Z)=S. ) if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
P,.<3W"4i {
? [~ "$ SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
j*2Q{ik>J bProcessed=TRUE;
%6-5hBzZN }
b5r.N1ms }
%"#%/>U4 }
v X=zqV if(!bProcessed){
6:Eu[PE~w for(int index=0;index<MAX_KEY;index++){
Aj| Gqw> if(hCallWnd[index]==NULL)
g5THkxp continue;
cBxBIC if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
U;%I"
p`Z/ SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
8WT^ES~C }
.Z[Bz7 }
X~ca8!Dq }
6|#+ return CallNextHookEx( hHook, nCode, wParam, lParam );
f+*wDH }
){ywk $nX4!X BOOL InitHotkey()
$F>
#1:=v< {
sfLH[Q? if(hHook!=NULL){
3awh>1N2W nHookCount++;
jkz.qo-% return TRUE;
+C`h*%BW }
Grot3a else
:-Gf GL>] hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
NI(fJ%U if(hHook!=NULL)
'FVh/};Y.D nHookCount++;
aI8k:FK" return (hHook!=NULL);
JY$B%R4;] }
/ {|<3CEe BOOL UnInit()
cM9z b6m {
G8Hj<3` if(nHookCount>1){
]
T`6Hz! nHookCount--;
JPeZZ13sS return TRUE;
TRB)cJZ? }
if|j)h& BOOL unhooked = UnhookWindowsHookEx(hHook);
M6$9- if(unhooked==TRUE){
aD5jy nHookCount=0;
",U>;` hHook=NULL;
j Wa%vA }
_,S
L;*G4| return unhooked;
T(<
[k:` }
8#NI`s* P<Wtv;Z1Z BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
g[Tl#X7F {
sY @S
BOOL bAdded=FALSE;
N#C"@,}Y for(int index=0;index<MAX_KEY;index++){
eVRFb#EU0e if(hCallWnd[index]==0){
-K+" :kiS hCallWnd[index]=hWnd;
irqNnnMGEa HotKey[index]=cKey;
cQ:Y@f 9 HotKeyMask[index]=cMask;
d[h2Y/AR bAdded=TRUE;
'A#`,^]uLF KeyCount++;
hqEnD break;
PQ}q5?N }
RPb/U8 }
Vfm (K return bAdded;
&``dI,NC }
fT7Z6$ `R}q&|o7< BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
axf 4N@ {
/CpU.^V BOOL bRemoved=FALSE;
DA>_9o/l for(int index=0;index<MAX_KEY;index++){
L;wfTZa if(hCallWnd[index]==hWnd){
SZGeF;N if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
D{b*,F:&@) hCallWnd[index]=NULL;
;.%Ii
w&WG HotKey[index]=0;
1J(` kQ)c HotKeyMask[index]=0;
MS`wd bRemoved=TRUE;
`5VEGSP] KeyCount--;
~d+.w%Z` break;
<
5%:/j }
43i@5F] }
g>])O }
9XU"Ppv return bRemoved;
iy{n"#uX }
xwSi}. + -[M 7J void VerifyWindow()
w!~%v
#
{
|
rY.IbL for(int i=0;i<MAX_KEY;i++){
RR*eq.; if(hCallWnd
!=NULL){ @-uV6X8|
if(!IsWindow(hCallWnd)){ )3W`>7>
hCallWnd=NULL; XiP xg[;
HotKey=0; D1Yc_
HotKeyMask=0; y)`f$Hl@1
KeyCount--; -2)6QKh~D
} `# N j8
} tbx* }uy2
} ^h
q?E2-
} ,4RmT\%T
@S69u s}
BOOL CHookApp::InitInstance() a4zq`n|3U
{ ba=-F4?
AFX_MANAGE_STATE(AfxGetStaticModuleState()); iX3Y:
hins=AfxGetInstanceHandle(); RyI(6TZl
InitHotkey(); Gp0B^^H$
return CWinApp::InitInstance(); zQ;jaS3hf
} AKKp-I5
jm|x=s3}h
int CHookApp::ExitInstance() --(e(tvf
{ jgcI|?yL
VerifyWindow(); oCl
$ 0x
UnInit(); QkEIV<T&)l
return CWinApp::ExitInstance(); F XpI-?#E<
} ]n8
5.DF
r8o9C
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file g{t)I0xm
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) r&^xg`i[z>
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ h.A@o#x
#if _MSC_VER > 1000 RmR-uQU-c
#pragma once )<]*!
#endif // _MSC_VER > 1000 W%3<"'eP
JG]67v{F
class CCaptureDlg : public CDialog 9VEx0mkdd
{ 'p%\fb6`
// Construction 7Wd}H Z
public: k0%*{IVPN
BOOL bTray; 0|1)cO}Dy
BOOL bRegistered; =5a|'O
BOOL RegisterHotkey(); TLBIM
UCHAR cKey; +pGkeZX
UCHAR cMask; K?M{=$N
void DeleteIcon(); 17-D\
+}
void AddIcon(); C-vFl[@a0
UINT nCount; ("G
_{tVU
void SaveBmp(); /7s^OkQ
CCaptureDlg(CWnd* pParent = NULL); // standard constructor H$M#+EfL
// Dialog Data <Cbah%X
//{{AFX_DATA(CCaptureDlg) B=4xZJPy
enum { IDD = IDD_CAPTURE_DIALOG }; MLu@|Xgh
CComboBox m_Key; QYm]&;EI
BOOL m_bControl; Gr1WBYK
BOOL m_bAlt; /-in:gX8
BOOL m_bShift; mz|#K7:
CString m_Path; M_<? <>|
CString m_Number; T#HW{3
//}}AFX_DATA qy]tuKZI
// ClassWizard generated virtual function overrides %OI4}!z@l
//{{AFX_VIRTUAL(CCaptureDlg) !$q *~F"S
public: 5_|Sm=
virtual BOOL PreTranslateMessage(MSG* pMsg); XZ|%9#6
protected: *wSz2o),
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support \yQs[l%J
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); ~9[^abz
//}}AFX_VIRTUAL 5:oteNc3
// Implementation cph&\
V2jt
protected: SFj:|S=v6j
HICON m_hIcon; S:.Vt&+NJ
// Generated message map functions <)f1skJsP
//{{AFX_MSG(CCaptureDlg) -&AgjzN!
virtual BOOL OnInitDialog(); 12D>~#J
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); hd~3I4D
afx_msg void OnPaint(); 2{- };
afx_msg HCURSOR OnQueryDragIcon(); 4[&L<D6h
virtual void OnCancel(); m%=]
j<A
afx_msg void OnAbout(); vpnOc2 -
afx_msg void OnBrowse(); +>w %j&B
afx_msg void OnChange(); p!b_tyJ
//}}AFX_MSG a9+l:c@
DECLARE_MESSAGE_MAP() M,uQ8SZA[
}; v;%>F)I
#endif )z:"P;b"Nl
C(4r>TNm
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file /t4#-vz
#include "stdafx.h" T@Q,1^?i
#include "Capture.h" *bOgRM[
#include "CaptureDlg.h" ##_`)/t,
#include <windowsx.h> 1N3qMm^
#pragma comment(lib,"hook.lib") h$[tEmD%
#ifdef _DEBUG JemB[
#define new DEBUG_NEW Te\i;7;4u
#undef THIS_FILE pGwBhZnb>
static char THIS_FILE[] = __FILE__; /=+y[y3`
#endif 53g(:eB
#define IDM_SHELL WM_USER+1
`oPUf!
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); %^zGM^PD
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); IP#?$X
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; u0s25 JY.%
class CAboutDlg : public CDialog Q5kf-~Jx+
{ KtR*/<7IC
public: <i!:{'%
CAboutDlg(); MBjo9P(
// Dialog Data T@{}!
//{{AFX_DATA(CAboutDlg) y)Y0SY1\j
enum { IDD = IDD_ABOUTBOX }; 'yIz<o
//}}AFX_DATA 8<2
[ F
// ClassWizard generated virtual function overrides B%L dH
//{{AFX_VIRTUAL(CAboutDlg) Ub"6OT1tl
protected: }$5e!t_K
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support ZLN79r{T
//}}AFX_VIRTUAL 8|U-{"!O?
// Implementation kuQ+MQHs
protected: hFLLg|@
//{{AFX_MSG(CAboutDlg) /:BM]K
//}}AFX_MSG @hz~9AII9
DECLARE_MESSAGE_MAP() /'g/yBY
}; `P(Otr[6
40M/Gu:
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) +|iJQF
{ P
{8d.
//{{AFX_DATA_INIT(CAboutDlg) '1f:8
//}}AFX_DATA_INIT ~T'!.^/
} YXFUZ9a#e
axpn*(yE
void CAboutDlg::DoDataExchange(CDataExchange* pDX) ,cF
$_7M
{ JvI6+[
CDialog::DoDataExchange(pDX); 'Cq)/}0
//{{AFX_DATA_MAP(CAboutDlg) x&['g*[L0
//}}AFX_DATA_MAP 01brl^5K
} B]_NI=d
Gc1!')g!
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) !#b8QER
//{{AFX_MSG_MAP(CAboutDlg) T \"eqa
// No message handlers an<loLW
//}}AFX_MSG_MAP $bho]~
END_MESSAGE_MAP() "m'roU
&%infPI'
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) #[<XNs!"
: CDialog(CCaptureDlg::IDD, pParent) :wcv,YoSG
{ bS2)L4MQY
//{{AFX_DATA_INIT(CCaptureDlg) $I$ B8
m_bControl = FALSE; V`,tu `6
m_bAlt = FALSE; 9Q. }jV
m_bShift = FALSE; ww^!|VVa
m_Path = _T("c:\\"); &>KZ4%&?
m_Number = _T("0 picture captured."); 0Xe?{!@a
nCount=0; o;^k"bo6
bRegistered=FALSE; wq6.:8Or-]
bTray=FALSE;
[<!4 a
//}}AFX_DATA_INIT XW2{I.:in>
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 Dau'VtzN
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); kbR!iPM-;
} 8
FJ>W.
m0$~O5|4
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) -h|YS/$f
{ RY\[[eG
CDialog::DoDataExchange(pDX); !
,v!7I
//{{AFX_DATA_MAP(CCaptureDlg) zmEg4 v'I
DDX_Control(pDX, IDC_KEY, m_Key); FKVf_Ncf%
DDX_Check(pDX, IDC_CONTROL, m_bControl); A2xfNY<
DDX_Check(pDX, IDC_ALT, m_bAlt); 1#OM~v6B
DDX_Check(pDX, IDC_SHIFT, m_bShift); 7hLdCS X
DDX_Text(pDX, IDC_PATH, m_Path); &.4m(ZX
DDX_Text(pDX, IDC_NUMBER, m_Number); U 5f<4I
//}}AFX_DATA_MAP :}[RDF?
} 9D+B~8[SQ
HZ8k%X}1
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) /^jV-Z`
//{{AFX_MSG_MAP(CCaptureDlg) w<54mGMOLr
ON_WM_SYSCOMMAND() \y\@=j
ON_WM_PAINT() 6.>l
ON_WM_QUERYDRAGICON() F%s'R 0l
ON_BN_CLICKED(ID_ABOUT, OnAbout) rf[w&~R
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) NMCMY<o
ON_BN_CLICKED(ID_CHANGE, OnChange) _go1gf7
//}}AFX_MSG_MAP dK^WZQ
END_MESSAGE_MAP() z}sBx9;
/CT g3Q"KQ
BOOL CCaptureDlg::OnInitDialog() hOTqbd}
{ Y7L1`<SC
CDialog::OnInitDialog(); ex}6(;7)O
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); ]|#%`p56
ASSERT(IDM_ABOUTBOX < 0xF000); fg8"fbG`:
CMenu* pSysMenu = GetSystemMenu(FALSE); )K"7=TvY
if (pSysMenu != NULL) EWX!:BKf
{ 1|8<!Hx#-
CString strAboutMenu; |mO4+:-~D+
strAboutMenu.LoadString(IDS_ABOUTBOX); >kN%R8*Sx
if (!strAboutMenu.IsEmpty()) 6Pzz= ai<
{ q,->E<8
pSysMenu->AppendMenu(MF_SEPARATOR); 9bVPMq7}i
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); k5X& |L/
} rERHfr`OU
} ySXQn#}-,
SetIcon(m_hIcon, TRUE); // Set big icon `dpm{sn
SetIcon(m_hIcon, FALSE); // Set small icon U`HSq=J
m_Key.SetCurSel(0); ]!=,8dY
RegisterHotkey(); D$W09ng-
CMenu* pMenu=GetSystemMenu(FALSE); tc2e)WZP
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); r:QLO~l/
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); N7WQ{/PSG
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); nYF;.k
return TRUE; // return TRUE unless you set the focus to a control )vcyoq
} tI-u@
g
l^,"^vz
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) W.O]f.h
{ }1)tALA
if ((nID & 0xFFF0) == IDM_ABOUTBOX) *>%tx k:)
{ O,+ZD^
CAboutDlg dlgAbout; ?~_[/
dlgAbout.DoModal(); ,%uK^U.zk
} @$bEY#*C
else [ {|868
{ pMy];9SvW
CDialog::OnSysCommand(nID, lParam); x6BO%1
} @9X+ BdQU
} 'U8% !
o7A+O%dX
void CCaptureDlg::OnPaint() F4xXJ"vc
{ ^o@N.+`&<
if (IsIconic()) u#&ZD|
{ =,4iMENm!
CPaintDC dc(this); // device context for painting X":T>)J-
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); I6B`G Im5
// Center icon in client rectangle I\FBf&~
int cxIcon = GetSystemMetrics(SM_CXICON); =8!FY"c*
int cyIcon = GetSystemMetrics(SM_CYICON); <hA1[S}
CRect rect; Qv`Lc]'
GetClientRect(&rect); 1q Jz;\wU
int x = (rect.Width() - cxIcon + 1) / 2; aGRD`ra
int y = (rect.Height() - cyIcon + 1) / 2; 8qi6>}A
// Draw the icon 6bXP{,}Gp
dc.DrawIcon(x, y, m_hIcon); =OUms@xcE
} n( } zq
else XX:?7:j}[8
{ f'>270pH
CDialog::OnPaint(); 8M DX()Bm
} ;94e
} Ld?-Ik~fF>
\W',g[Y:
HCURSOR CCaptureDlg::OnQueryDragIcon() `1T?\
{ -? |-ux
return (HCURSOR) m_hIcon; ;vDjd2@
} i4XE26B;e
4EZl
(v"f`
void CCaptureDlg::OnCancel() ^G~C#t^
{ A/%+AH(
if(bTray) VYj*LiR
DeleteIcon(); lNQ8$b
CDialog::OnCancel(); oieZopYA
} # {'1\@q
n=+K$ R
void CCaptureDlg::OnAbout() U fzA/
{ Fz 6&.f
CAboutDlg dlg; <.HDv:
dlg.DoModal(); ktu{I
} L,<5l?u
-x)zyq6
void CCaptureDlg::OnBrowse() 7Y?=ijXXx\
{ 3S97hn{|=
CString str; zv%9?:
BROWSEINFO bi; p903*F^[,
char name[MAX_PATH]; e7cqm*Qi
ZeroMemory(&bi,sizeof(BROWSEINFO)); Gd]!D~[1
bi.hwndOwner=GetSafeHwnd(); +F9)+wT~;q
bi.pszDisplayName=name; V:wx@9m)
bi.lpszTitle="Select folder"; T/$6ov+K
bi.ulFlags=BIF_RETURNONLYFSDIRS; Z^ e?V7q
LPITEMIDLIST idl=SHBrowseForFolder(&bi); %v_w"2x;
if(idl==NULL) !&ly :v!
return; = DT7]fU
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); !RJuH;8
str.ReleaseBuffer(); mqx#N%
m_Path=str; ?<l,a!V'6
if(str.GetAt(str.GetLength()-1)!='\\') .YT&V
m_Path+="\\"; '^!1A GF
UpdateData(FALSE); <Kq4thR
} "/O`#Do/
\"X<\3z2
void CCaptureDlg::SaveBmp() }!W,/=z*
{ J=*X%^jX9Z
CDC dc; @
z{E
dc.CreateDC("DISPLAY",NULL,NULL,NULL); 20O\@}2q2M
CBitmap bm; giDe
int Width=GetSystemMetrics(SM_CXSCREEN); u$"dL=s!
int Height=GetSystemMetrics(SM_CYSCREEN); SG)hrd
bm.CreateCompatibleBitmap(&dc,Width,Height); v`Iw:?)%
CDC tdc; wTL&m+xr
tdc.CreateCompatibleDC(&dc); ZE!dg^-L
CBitmap*pOld=tdc.SelectObject(&bm); 4Hk eXS.
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); POl[]ni=>
tdc.SelectObject(pOld); $Eo)i
BITMAP btm; + \DGS
bm.GetBitmap(&btm); 3miEF0x[
DWORD size=btm.bmWidthBytes*btm.bmHeight; ) sh+cfTCb
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); JIGoF
BITMAPINFOHEADER bih; RO]Vn]qb
bih.biBitCount=btm.bmBitsPixel; \R6D'Yt
bih.biClrImportant=0; ep<O?7@j-G
bih.biClrUsed=0; 5$(qnOi
bih.biCompression=0; ncGg@$E
bih.biHeight=btm.bmHeight; L*rND15
bih.biPlanes=1; *gJ:irah
bih.biSize=sizeof(BITMAPINFOHEADER); I1IuvH6
bih.biSizeImage=size; D]{#!w(d
bih.biWidth=btm.bmWidth; ?dJ[?<aG
bih.biXPelsPerMeter=0; 6zJ<27
bih.biYPelsPerMeter=0; rhLm2q
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); uh][qMyLM
static int filecount=0; <vP{U
CString name; 2itJD1;
name.Format("pict%04d.bmp",filecount++); =lE_
Q[P
name=m_Path+name; tqnvC
UIE
BITMAPFILEHEADER bfh; sO5~!W>Z
bfh.bfReserved1=bfh.bfReserved2=0; efK|)_i
:
bfh.bfType=((WORD)('M'<< 8)|'B'); u; c)Tt
bfh.bfSize=54+size; %9}5~VM"q
bfh.bfOffBits=54; *kliI]BF]
CFile bf; 2]$
7
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ rYp]RX>
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER));
<|Pw*L$
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); x9,X0JO
bf.WriteHuge(lpData,size); lf<