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:
#(#Wv?r6
ysxb?6 一、实现方法
%Y<| ;0v u frW\X 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:
n>+mL"hs Kwefs;<E? #pragma data_seg("shareddata")
\Xm,OE_v" HHOOK hHook =NULL; //钩子句柄
WQ[_hg|k UINT nHookCount =0; //挂接的程序数目
"?ucO4d static UCHAR HotKey[MAX_KEY] = {0}; //热键虚拟键码
!;i`PPRwk static UCHAR HotKeyMask[MAX_KEY] = {0}; //组合掩码, control=4,alt=2,shift=1
Ox&P}P0f static HWND hCallWnd[MAX_KEY] = {0}; //window handle associated with hotkey
8+a4>8[M static int KeyCount =0;
s \;" X static UCHAR MaskBits =0; //00000 Ctrl=4 & Alt=2 & Shift=1
\`oT#|0 #pragma data_seg()
0B@SN)<kH /y _O4 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。
%{AO+u2i 01r 8$+ 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:
8$85^Of zVXC1u9B BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR
Ir`eL cKey,UCHAR cMask)
/<@SFF. {
*c~T@m~DR BOOL bAdded=FALSE;
96 q_K84K for(int index=0;index<MAX_KEY;index++){
0E,8R{e if(hCallWnd[index]==0){
8oUpQcim hCallWnd[index]=hWnd;
.y_/U wu HotKey[index]=cKey;
+Z7th7W/, HotKeyMask[index]=cMask;
pk?w\A} bAdded=TRUE;
q qpgy7 KeyCount++;
>XY`*J^ break;
5R'TcWf#W }
UR7g`/ }
BSYzC9h` return bAdded;
9N9L}k b }
u
[m //删除热键
y4*U6+ #. BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
A'q#I>j` {
TD1 [ BOOL bRemoved=FALSE;
&Q;sSIc for(int index=0;index<MAX_KEY;index++){
Ss~;m']68 if(hCallWnd[index]==hWnd){
"x=f=; if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
i@P)a'W_ hCallWnd[index]=NULL;
<,Ue
0 HotKey[index]=0;
?ooe'V@ HotKeyMask[index]=0;
|]J>R bRemoved=TRUE;
l>Z5 uSG KeyCount--;
tZ}
v%3 break;
o7J }
PZE0}>z }
U]^HjfX\ }
*AoR==:ya return bRemoved;
O4r0R1VQM }
NLUT#!Gr P|.] DJ 5b!vgm#]) DLL中的钩子函数如下:
;i
Fz?d3; uJFdbBDSh LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
fBRo_CU8! {
4]h
=yc R BOOL bProcessed=FALSE;
D2](da:]8) if(HC_ACTION==nCode)
N}pw74=1 {
[q/Abz'i if((lParam&0xc0000000)==0xc0000000){// 有键松开
2"Ecd switch(wParam)
@6{~05.p
{
cxA ^:3 case VK_MENU:
D B-l$rj MaskBits&=~ALTBIT;
lDOCmdt@N break;
B8B; y^b>i case VK_CONTROL:
b4E:Wn9x MaskBits&=~CTRLBIT;
lV1G<qP break;
G?EoPh^m case VK_SHIFT:
(yF:6$:# MaskBits&=~SHIFTBIT;
zA$k0p break;
E=e*VEjy default: //judge the key and send message
l^|UCgRn break;
]8Q4BW }
k 8UO9r[ for(int index=0;index<MAX_KEY;index++){
1QLbf*zeIW if(hCallWnd[index]==NULL)
4 !y%O continue;
j Dy-)2< if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
.2%zC & ; {
jUSmqm' SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
Y( 3Bp\6 bProcessed=TRUE;
99:C"`E{ }
n` xR5!de }
&d"G/6 }
k p<OJy else if((lParam&0xc000ffff)==1){ //有键按下
3[O=xXB switch(wParam)
pPc TrN' {
|/09<F:L[ case VK_MENU:
POvP]G9'" MaskBits|=ALTBIT;
t.laO. 3 break;
~(Q)"s\1I case VK_CONTROL:
:^kZ.6Q@ MaskBits|=CTRLBIT;
@&X|5p"[g break;
-7S g62THS case VK_SHIFT:
g=QDu7Ux MaskBits|=SHIFTBIT;
c|M6<} break;
UD8op]>L default: //judge the key and send message
kKAP"'v break;
.Nw=[ }
W7U2MqQ for(int index=0;index<MAX_KEY;index++){
MC<PM6w if(hCallWnd[index]==NULL)
_(h&7P9 continue;
T(t+
iv if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
\De{9v {
c- }X_)U } SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
c17_2 @N bProcessed=TRUE;
VO$
iNK }
8ELCs<xI }
sC='_h }
WN01h=1J_ if(!bProcessed){ //一般按键事件,为监视键盘的程序留出余地
%KmiH
;U for(int index=0;index<MAX_KEY;index++){
"br,/Dk>MX if(hCallWnd[index]==NULL)
pL{U `5S continue;
|962G1. if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
]`kmjn SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
}UWL-TkEjF //lParam的意义可看MSDN中WM_KEYDOWN部分
DV _2P$tT| }
v#.r.{t }
7T1=q{#M }
-?mfE+kt return CallNextHookEx( hHook, nCode, wParam, lParam );
8Le||)y,\ }
(>r[-Bft <-[wd.M_ 抓图程序是一个基于对话框的程序,它在建立对话框的时候调用前面的DLL,登记热键,因此需要将hook.lib添加到工程里,在程序里给出两个DLL函数的定义,也可以写个头文件,再包含进来以下代码:
pov)Z):}G< gLy&esJl1 BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
m06ALD_ BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
a'2$nbp} B)qWtMZx 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&,~qoU Kac' ;1 LRESULT CCaptureDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
rNB_W. {
n2oz"<?$S if(message==WM_HOTKEY&&lParam==WM_KEYDOWN)
K2J\awX {
zxC#0@qX07 //lParam表示是按下还是松开,如果有多个热键,由wParam来区分
tD+9kf2 SaveBmp();
UazP6^{L return FALSE;
jV4\A
}
:E:38q,hG …… //其它处理及默认处理
(H
->IV }
C!fMW+C@ BFo5\l:q8 /7}It$|nhy 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。
[[;e)SoA 6f\Lf?vF 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。
U-R6xxPZ `QyO`y=?[Y 二、编程步骤
)pq;*~IBI f'
3q(a<p 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";
SV2M+5#; m+lvl 2、 在"Hook"项目中导出AddHotkey()、DeleteHotkey()函数;
UE$UR#T'w Q0&H#xgt 3、 在"Capture"项目中按照图一所示设置对话框的界面,具体设置参见代码部分;
)?X-(4 v
8$>rwB 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;
(=* cK-3 R,pX:H+ 5、 添加代码,编译运行程序。
TrLu~4 k3)dEH1z 三、程序代码
mg*qiScfW UFp,a0| ///////////////////////////////////// Hook.h : main header file for the HOOK DLL
oxz OA #if !defined(AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_)
A'jP7P #define AFX_HOOK_H__AEBFF705_C93A_11D5_B7D6_0080C82BE86B__INCLUDED_
P] UJ0b #if _MSC_VER > 1000
"4uS3h2r #pragma once
C/TF-g-_Y #endif // _MSC_VER > 1000
ug+io mZ #ifndef __AFXWIN_H__
MLRK74D #error include 'stdafx.h' before including this file for PCH
0tEYU:Qu #endif
my4giC2a #include "resource.h" // main symbols
^yyC
[Mz class CHookApp : public CWinApp
wtH?
[>S;) {
(2:/8\_P public:
`bZ/haU}A CHookApp();
kw"SwdP5 // Overrides
f"qga/ // ClassWizard generated virtual function overrides
6WU(% //{{AFX_VIRTUAL(CHookApp)
SVO 3821 public:
:=wTvz virtual BOOL InitInstance();
}j*KcB_ virtual int ExitInstance();
K }Vv4x1U //}}AFX_VIRTUAL
B[Zjfc //{{AFX_MSG(CHookApp)
5[*
qi?w= // NOTE - the ClassWizard will add and remove member functions here.
_Jme!Oaa // DO NOT EDIT what you see in these blocks of generated code !
v?&
-xH-S //}}AFX_MSG
763v DECLARE_MESSAGE_MAP()
:9$F'd\ };
oAPb*;} LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam, LPARAM lParam);
H\qC[" BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
YN!>} BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
0},PJ$8x BOOL InitHotkey();
[&&1j@LQ* BOOL UnInit();
m0c P ( #endif
\H=&`? !+L/Khw/C //////////////////////////////////////// Hook.cpp : Defines the initialization routines for the DLL.
iy 14mh\ ~ #include "stdafx.h"
?i06f,- #include "hook.h"
`eIenA #include <windowsx.h>
f"u%J/e & #ifdef _DEBUG
W!6qqi{ #define new DEBUG_NEW
11<KpxKpk #undef THIS_FILE
rz@=pR : static char THIS_FILE[] = __FILE__;
}T%}wdj #endif
mxz-4. #define MAX_KEY 100
BbgnqzU #define CTRLBIT 0x04
1#0{@35 #define ALTBIT 0x02
++V=s\d7 #define SHIFTBIT 0x01
0IfKJ*]M #pragma data_seg("shareddata")
XI22+@d6 HHOOK hHook =NULL;
IFDZfx UINT nHookCount =0;
'+$EhFwD static UCHAR HotKey[MAX_KEY] = {0}; //hotkey
}lfnnK# static UCHAR HotKeyMask[MAX_KEY] = {0}; //flag for hotkey, value is VK_CONTRL or VK_NEMU or VK_SHIFT
ub;ZtsM,% static HWND hCallWnd[MAX_KEY] = {0}; //window associated with hotkey
8"fD`jtQ static int KeyCount =0;
/XhIx\40l static UCHAR MaskBits =0; //00000 Ctrl Alt Shift
{|1Y:&M? #pragma data_seg()
.8y3O] HINSTANCE hins;
F@<CsgKB- void VerifyWindow();
GQ9\'z#+ BEGIN_MESSAGE_MAP(CHookApp, CWinApp)
7D!u1?]d{ //{{AFX_MSG_MAP(CHookApp)
KN7n@$8YM // NOTE - the ClassWizard will add and remove mapping macros here.
76Vl6cPu> // DO NOT EDIT what you see in these blocks of generated code!
Er+nk`UR_ //}}AFX_MSG_MAP
j4;0|zx-i END_MESSAGE_MAP()
?ON-+u !-,t'GF( CHookApp::CHookApp()
Z| V`B ` {
EpFQ|.mQ // TODO: add construction code here,
z&{5;A}Q@ // Place all significant initialization in InitInstance
rxy&spX }
D?0zhU 7LU}Iiv CHookApp theApp;
p~9vP)74u LRESULT CALLBACK KeyboardProc(int nCode,WPARAM wParam,LPARAM lParam)
OnK~3j {
D;_ MPN[ BOOL bProcessed=FALSE;
G=A,9@+c if(HC_ACTION==nCode)
IiZ&Pr {
-mRA# if((lParam&0xc0000000)==0xc0000000){// Key up
FKT1fv[H switch(wParam)
ui@2s;1t {
N9vP7 case VK_MENU:
tPGJ<30 MaskBits&=~ALTBIT;
\l.-eu'O break;
^",ACWF4Sk case VK_CONTROL:
|j VM&R2s MaskBits&=~CTRLBIT;
=Q[b'*o7 break;
Nqrmp" ] case VK_SHIFT:
`/~8}Y{ MaskBits&=~SHIFTBIT;
-tyK~aasQ break;
4=Krq6{ default: //judge the key and send message
/l<<_uk$ break;
1$81E. }
V2i@.@$j for(int index=0;index<MAX_KEY;index++){
)I$q 5%q8 if(hCallWnd[index]==NULL)
w);6K[+; continue;
Vgyew9>E if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
6p?JAT5 {
\@1=stK:F SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYUP);
&bp=`=* bProcessed=TRUE;
e`v`XSA[p }
@$2))g` }
K"[AxB'F }
9>g, else if((lParam&0xc000ffff)==1){ //Key down
W"k8KODOY switch(wParam)
Ce")[<: {
y;AL'vm9 case VK_MENU:
H03jDM8Q MaskBits|=ALTBIT;
&ZX{R#[L break;
8kIR y case VK_CONTROL:
=n'
4?W@ MaskBits|=CTRLBIT;
i7utKj*57 break;
zA!0l*H case VK_SHIFT:
hweaGL t0 MaskBits|=SHIFTBIT;
Wxbq)Z[V break;
&2=dNREJ}1 default: //judge the key and send message
K.z64/H: break;
]Wq?H-B{ }
SY^dWLf for(int index=0;index<MAX_KEY;index++)
rJ!{/3e {
NM6Teu_ if(hCallWnd[index]==NULL)
1[t=XDz/e continue;
U=o"32n+ if(IsWindow(hCallWnd[index])&&(HotKey[index]==wParam)&&(HotKeyMask[index]==MaskBits))
^=^z1M2P {
v!FMs< SendMessage(hCallWnd[index],WM_HOTKEY,wParam,WM_KEYDOWN);
{s_+?<l bProcessed=TRUE;
Gsc\/4Wx }
0sh/|`\ }
zWb4([P; }
Xj5~%DZp if(!bProcessed){
~~6^Sh60g for(int index=0;index<MAX_KEY;index++){
yGsz2T;w if(hCallWnd[index]==NULL)
B-T/V-c7 continue;
"n=vN<8(o if(IsWindow(hCallWnd[index])&&(HotKey[index]==0)&&(HotKeyMask[index]==0))
V2<?ol SendMessage(hCallWnd[index],WM_HOTKEY,WM_HOTKEY,lParam);
\#>T~.Y7K }
/g$G_} }
-#Z
bR }
`St.+6^J return CallNextHookEx( hHook, nCode, wParam, lParam );
fS"Hr 0 }
W5' 3$,X9 +\{&2a? BOOL InitHotkey()
1& '8Y {
RJON90,J if(hHook!=NULL){
cn-
nj] nHookCount++;
vYU;_R return TRUE;
VT.;:Q }
d)"?mD:m/M else
;9}pOzF1q hHook=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
4ON_$FUe if(hHook!=NULL)
_ %x4ty nHookCount++;
i]#+1Hf return (hHook!=NULL);
s #S%#LM }
rX; Ys2vQ* BOOL UnInit()
\^V`ds*. {
;_(PVo if(nHookCount>1){
4
8{vE3JY nHookCount--;
i9D0]3/> return TRUE;
u^j {U} }
MCP "GZK6W BOOL unhooked = UnhookWindowsHookEx(hHook);
`W-&0|%Ta if(unhooked==TRUE){
@YH+cG| nHookCount=0;
nWvuaQ0} hHook=NULL;
V&|!RxWK }
rJ o"fx return unhooked;
/2m?15c+ }
LsM7hLy 6y5A"- BOOL __declspec(dllexport) __stdcall AddHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
thqS*I'#g {
NKmoG\* BOOL bAdded=FALSE;
&l?+3$q for(int index=0;index<MAX_KEY;index++){
B<~U3b if(hCallWnd[index]==0){
DS-fjH\ hCallWnd[index]=hWnd;
P\&! ] HotKey[index]=cKey;
KHDZ HotKeyMask[index]=cMask;
8p!*?RRme[ bAdded=TRUE;
D r9 ?2 KeyCount++;
^o !O)D-q break;
QQpP#F|w }
HSIvWhg?p }
]O:N-Y return bAdded;
8V-\e?&^ }
A, PlvI 1[*{(e BOOL __declspec(dllexport) __stdcall DeleteHotkey(HWND hWnd,UCHAR cKey,UCHAR cMask)
tyDY'W\] {
yt+}K)Hz BOOL bRemoved=FALSE;
oQ7]=| for(int index=0;index<MAX_KEY;index++){
gLSA!#[h if(hCallWnd[index]==hWnd){
}N*>QR5K if(HotKey[index]==cKey&&HotKeyMask[index]==cMask){
6UE(f@ hCallWnd[index]=NULL;
P=5NKg HotKey[index]=0;
o."rxd HotKeyMask[index]=0;
SjEdyN# bRemoved=TRUE;
pAu72O? KeyCount--;
WM)F0@" break;
?v-1zCls }
%o}(sShS }
\NqEw@91B }
^<0IB#dA return bRemoved;
b%t+,0s| }
u7;~ ba3-t;S
void VerifyWindow()
Lz\UZeq {
L;QY<b for(int i=0;i<MAX_KEY;i++){
G5tday~3 if(hCallWnd
!=NULL){ !?[oIQ)h
if(!IsWindow(hCallWnd)){ @:x"]!1
hCallWnd=NULL; Q!M)xNl/
HotKey=0; *wV[TKaN
HotKeyMask=0; )nu~9km3
KeyCount--; F8+e,x
} s^T+5E&}
} somfv$'B
} )uLr?$qe
} 9B+wYJp
+/?iCmW
BOOL CHookApp::InitInstance() +^6}
{ n$2 RCQ
AFX_MANAGE_STATE(AfxGetStaticModuleState()); \nqo%5XL
hins=AfxGetInstanceHandle(); &gc`<kLu
InitHotkey(); hFvi5I-b
return CWinApp::InitInstance(); !CjqL~
} \Z/k;=Sla
ZB5?!.ND
int CHookApp::ExitInstance() MF[z-7
{ jK8'T_Pah
VerifyWindow(); P.sgRsL
UnInit(); k:#6^!b1
return CWinApp::ExitInstance(); l
oqvi
} 0W>9'Rw
MjaUdfx
////////////////////////////////////////////////////////////////////// CaptureDlg.h : header file D*vm
cSf
#if !defined(AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_) Pj7gGf6v
#define AFX_CAPTUREDLG_H__97B51708_C928_11D5_B7D6_0080C82BE86B__INCLUDED_ CQODXB^
#if _MSC_VER > 1000 tLcEl'Eo
#pragma once !5x
Ly6=}
#endif // _MSC_VER > 1000 S)%_we LW7
ad!(z[F'Y
class CCaptureDlg : public CDialog ,M3z!=oIGn
{ z#<P}}
// Construction tiLu75vj
public: uv4 _:
BOOL bTray; Wn!G.(Jq
BOOL bRegistered; #Nte^E4
BOOL RegisterHotkey(); v@G4G*x\
UCHAR cKey; |
W#~F&{]
UCHAR cMask; OYf{?-QD
void DeleteIcon(); 8o)L,{yl
void AddIcon();
wAbp3h X
UINT nCount; {4ptu~8
void SaveBmp(); C4$/?,K(
CCaptureDlg(CWnd* pParent = NULL); // standard constructor fo\\o4Qyh
// Dialog Data S=gW(c2'
//{{AFX_DATA(CCaptureDlg) Z{{t^+XG
enum { IDD = IDD_CAPTURE_DIALOG }; `HUf v@5
CComboBox m_Key; !v!N>f4S$
BOOL m_bControl; iUr xJh
BOOL m_bAlt; xKp0r1}
BOOL m_bShift; |0{ i9.=
CString m_Path; Kla:e[{
CString m_Number; um8AdiK
//}}AFX_DATA R9.HD?H@
// ClassWizard generated virtual function overrides 015Owi
//{{AFX_VIRTUAL(CCaptureDlg) jeDlH6X'
public: =sQ(iso%f
virtual BOOL PreTranslateMessage(MSG* pMsg); ~q%
protected: *kaJ*Ti-/
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support %OI4a5V*l
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); BV9 *s
//}}AFX_VIRTUAL
qtSs)n
// Implementation GYgWf1$8_D
protected: da*9(!OV
HICON m_hIcon; v`)m">e*w
// Generated message map functions Bt>}LLBS2
//{{AFX_MSG(CCaptureDlg) DY><qk
virtual BOOL OnInitDialog(); =aow
d4t
afx_msg void OnSysCommand(UINT nID, LPARAM lParam); v`{:~q*
afx_msg void OnPaint(); ;]&-MFv#
afx_msg HCURSOR OnQueryDragIcon(); =|y|P80w
virtual void OnCancel(); bNvAyKc-
afx_msg void OnAbout(); B-Y+F
afx_msg void OnBrowse(); Mn"/#tXL-
afx_msg void OnChange(); Riql,g/
//}}AFX_MSG
3t
DECLARE_MESSAGE_MAP() Zd>ZY,-5
}; !cCg/
#endif uFe'$vI
/!bx`cKG
////////////////////////////////////////////////////////////// CaptureDlg.cpp : implementation file [:i sZG*
#include "stdafx.h" R^9"N?Q7;`
#include "Capture.h" ,o&<WMD
#include "CaptureDlg.h" 96W4c]NT
#include <windowsx.h> md6*c./Z
#pragma comment(lib,"hook.lib") 3%NE/lw1
#ifdef _DEBUG K<,Y^3]6?
#define new DEBUG_NEW N&B>#:
#undef THIS_FILE dy_.(r5[L]
static char THIS_FILE[] = __FILE__; \r]('x3S
#endif Za\RM[Z!I
#define IDM_SHELL WM_USER+1 silp<13HN
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask); 5c~'!: 7
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask); EW5]!%
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; x_ySf!ih
class CAboutDlg : public CDialog k
E_ky)
{ ry,}F@P&
public: sM9-0A
CAboutDlg(); b@-)Fy4d2
// Dialog Data P`!Ak@N
//{{AFX_DATA(CAboutDlg) 9`&77+|;e
enum { IDD = IDD_ABOUTBOX }; t/Z!O
z6ZE
//}}AFX_DATA Orc>.~+f%A
// ClassWizard generated virtual function overrides
{@\/a
//{{AFX_VIRTUAL(CAboutDlg) A}eOR=E
protected: ocP*\NR
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support ~}%&p&
p
//}}AFX_VIRTUAL L` [F~$|
// Implementation *'^:S#=
protected: 7S2c|U4IM
//{{AFX_MSG(CAboutDlg) N K"%DU<
//}}AFX_MSG [Ye5Y?
DECLARE_MESSAGE_MAP() QAXYrRu
}; 7+S44)w}~
Lnx2xoNk
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) 2^bgC~2C1
{ ./!KE"!
//{{AFX_DATA_INIT(CAboutDlg) ^=#!D[xj>
//}}AFX_DATA_INIT q/J3cXa{K
} (v|`LmV
f}-v
void CAboutDlg::DoDataExchange(CDataExchange* pDX) "sIN86pCs
{ ,A?v,Fs>O[
CDialog::DoDataExchange(pDX); 7n>|D^
//{{AFX_DATA_MAP(CAboutDlg) Gavkil
//}}AFX_DATA_MAP .ftUhg
} J<-Fua^
WV~SL/k|
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) HtS#_y%(
//{{AFX_MSG_MAP(CAboutDlg) 4i96UvkZ
// No message handlers q]?+By-0
//}}AFX_MSG_MAP [R$liN99z;
END_MESSAGE_MAP() &0h=4i=6r
j5A\y^Kv
CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/) "D!Dr1
: CDialog(CCaptureDlg::IDD, pParent) lzI/\%
{ "
xxXZGUp
//{{AFX_DATA_INIT(CCaptureDlg) 4=
$!_,.
m_bControl = FALSE; jM;d>Gymx
m_bAlt = FALSE; -sD:+Te
m_bShift = FALSE; !z.^(Tj
m_Path = _T("c:\\"); xF^r`
m_Number = _T("0 picture captured."); %SFw~%@3&~
nCount=0; y(ldO;.
bRegistered=FALSE; e7wKjt2fy
bTray=FALSE; 6z`8cI+LRw
//}}AFX_DATA_INIT ]d~MEa9Y|
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32 7Fc |
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); wtUG^hV #_
} QJ6f
EV$~
_BCT.ual
void CCaptureDlg::DoDataExchange(CDataExchange* pDX) *ig5Q(b*N
{ ur`V{9g
CDialog::DoDataExchange(pDX); 9cbB[c_.
//{{AFX_DATA_MAP(CCaptureDlg) 0YHYx n
DDX_Control(pDX, IDC_KEY, m_Key); 3dY6;/s
DDX_Check(pDX, IDC_CONTROL, m_bControl); p\)h",RkA
DDX_Check(pDX, IDC_ALT, m_bAlt); @nW'(x(
DDX_Check(pDX, IDC_SHIFT, m_bShift); L7[X|zmy*x
DDX_Text(pDX, IDC_PATH, m_Path); E'fX&[
DDX_Text(pDX, IDC_NUMBER, m_Number); @)06\h
//}}AFX_DATA_MAP ]#+5)[N$>
} ;S{ZC5
q
w"e0q% )
BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog) 8Q+TE;
//{{AFX_MSG_MAP(CCaptureDlg) :hi$}xHa
ON_WM_SYSCOMMAND() 'fXer!L}
ON_WM_PAINT() F}\[eFf[
ON_WM_QUERYDRAGICON() d!FONi
ON_BN_CLICKED(ID_ABOUT, OnAbout) jeyaT^F(
ON_BN_CLICKED(IDC_BROWSE, OnBrowse) Psg +\ 14
ON_BN_CLICKED(ID_CHANGE, OnChange) N/`g?B[
//}}AFX_MSG_MAP o(BYT9|.kw
END_MESSAGE_MAP() c
'/2F0y
b<48#Qy~l
BOOL CCaptureDlg::OnInitDialog() ,\Z8*Jr3Q
{ Lp~c
CDialog::OnInitDialog(); Y&~5k;>'_
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); V}p*HB@:
ASSERT(IDM_ABOUTBOX < 0xF000); 9n-RXVL+
CMenu* pSysMenu = GetSystemMenu(FALSE); ?T~3B]R
if (pSysMenu != NULL) FP0<-9DO
{ Y'\3ux0]4'
CString strAboutMenu; o(vZ*^\
strAboutMenu.LoadString(IDS_ABOUTBOX); xXl$Mp7
if (!strAboutMenu.IsEmpty()) 1Q3%!~<\s
{ Es_SCWJ
pSysMenu->AppendMenu(MF_SEPARATOR); [UUM^!1
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); >V3W>5 X
} 6eVe}V4W
} r(748Qc4f?
SetIcon(m_hIcon, TRUE); // Set big icon ,2Sv1v$
SetIcon(m_hIcon, FALSE); // Set small icon \0xzBs1!
m_Key.SetCurSel(0); %Td+J`|U+
RegisterHotkey(); oo"JMD)
CMenu* pMenu=GetSystemMenu(FALSE); us(sZG
pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND); u~j'NOv
pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND); FC|y'j 0
pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND); !NQf< ch
return TRUE; // return TRUE unless you set the focus to a control GIJV;7~
} P1vF{e
k B$lkl\C
void CCaptureDlg::OnSysCommand(UINT nID, LPARAM lParam) WllCcD1
{ Zm?G'06
if ((nID & 0xFFF0) == IDM_ABOUTBOX) JT}dor
{ OqUE4.vIP
CAboutDlg dlgAbout; GhaAvyN
dlgAbout.DoModal(); j>0SE
} DRS;lJ2
else KHiYV
{ L8%=k%H(1
CDialog::OnSysCommand(nID, lParam); ant-\w>}
} D<$j`r
} LKoM\g(
E}E7VQjM
void CCaptureDlg::OnPaint() !dYX2!lvT
{ p2M?pV
if (IsIconic()) ?3e!A9x
{ \Mh4X`<e
CPaintDC dc(this); // device context for painting _,Io(QS
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); gb ^UFD L
// Center icon in client rectangle M]pel\{M
int cxIcon = GetSystemMetrics(SM_CXICON); X,Q6
int cyIcon = GetSystemMetrics(SM_CYICON); |ij W_r
CRect rect; _r^G%Mvy|
GetClientRect(&rect); ]ys4
int x = (rect.Width() - cxIcon + 1) / 2; gPn%`_d5
int y = (rect.Height() - cyIcon + 1) / 2; 4B%5-VQ
// Draw the icon 8=b{'s^^F
dc.DrawIcon(x, y, m_hIcon); A@lhm`Aa
} ACMpm~C8Gu
else 8O}A/*1FJ
{ &)/H?S;yN
CDialog::OnPaint(); 3w6J V+?
} `"1{Sx.
} S(YHwH":
lu9Ir>c
HCURSOR CCaptureDlg::OnQueryDragIcon() $rV:&A
{ {&Gk.ODI7
return (HCURSOR) m_hIcon; +"fM &F]
} ({}O
M=_
!F}J+N=}
void CCaptureDlg::OnCancel() \3@2rW"5
{ Z{|.xg sY
if(bTray) /(z0I.yE
DeleteIcon(); EUYa =-
CDialog::OnCancel(); lFzQG:k@
} 3IRRFIiO
d(dw]6I6
void CCaptureDlg::OnAbout() OM#OPB
rB
{ 1&>nL`E[3
CAboutDlg dlg; _mq*j^u,j
dlg.DoModal(); :pV("tHE
} 'AlSq:gZ
"ZK5P&d
void CCaptureDlg::OnBrowse() h-)A?%Xt
{ =6 q*w^ET
CString str; Aj)<8
BROWSEINFO bi; yvH#1F`{q
char name[MAX_PATH]; O( sFs1
ZeroMemory(&bi,sizeof(BROWSEINFO)); -EX3'
[*'
bi.hwndOwner=GetSafeHwnd(); N_WA4?rB
bi.pszDisplayName=name; \Lh<E5@]
bi.lpszTitle="Select folder"; 9"u@<]
bi.ulFlags=BIF_RETURNONLYFSDIRS; C">=2OO
LPITEMIDLIST idl=SHBrowseForFolder(&bi); =-B3vd:LF
if(idl==NULL) Ot:\h
return; @8 yE(
SHGetPathFromIDList(idl,str.GetBuffer(MAX_PATH)); wx?{|
str.ReleaseBuffer(); G5e Ls
m_Path=str; v!v0,?b*
if(str.GetAt(str.GetLength()-1)!='\\') B}xo|:f!zj
m_Path+="\\"; qytGs@p_
UpdateData(FALSE); a\2Myj
} K5c7>I%k
5['B-
Iw
void CCaptureDlg::SaveBmp() O|g!Y(
{ *fy`JC
CDC dc; {G*:N[pJp
dc.CreateDC("DISPLAY",NULL,NULL,NULL); E0?\DvA
CBitmap bm; {II7%\ya
int Width=GetSystemMetrics(SM_CXSCREEN); YF[!Hpzq
int Height=GetSystemMetrics(SM_CYSCREEN); b<H6D}
bm.CreateCompatibleBitmap(&dc,Width,Height); jU9zCMyNF
CDC tdc; }_D5, k
tdc.CreateCompatibleDC(&dc); Iy 8E$B;
CBitmap*pOld=tdc.SelectObject(&bm); keq[6Lv
tdc.BitBlt(0,0,Width,Height,&dc,0,0,SRCCOPY); f"=4,
tdc.SelectObject(pOld); =)UiI3xHk
BITMAP btm; XU })3]/
bm.GetBitmap(&btm); :DF4g=
DWORD size=btm.bmWidthBytes*btm.bmHeight; 7!840 :a?+
LPSTR lpData=(LPSTR)GlobalAllocPtr(GPTR,size); D8Waf
BITMAPINFOHEADER bih; 6+d"3-R.
bih.biBitCount=btm.bmBitsPixel; d/99!+r
bih.biClrImportant=0; ;[\2/$-
bih.biClrUsed=0;
J5_
qqD)
bih.biCompression=0; &CP@]
pi9L
bih.biHeight=btm.bmHeight; .g`*cDW^=
bih.biPlanes=1; :phD?\!w8t
bih.biSize=sizeof(BITMAPINFOHEADER); %a6]gsiv2<
bih.biSizeImage=size; 9P>S[=
bih.biWidth=btm.bmWidth; OL9C#er
bih.biXPelsPerMeter=0; WD do{
bih.biYPelsPerMeter=0; *9:6t6x
GetDIBits(dc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS); EqDYQ
7
static int filecount=0; bb_jD^
CString name; u2\qg;dP
name.Format("pict%04d.bmp",filecount++); _ G*x:<
name=m_Path+name; 3g
"xm
BITMAPFILEHEADER bfh; - 5Wt9
bfh.bfReserved1=bfh.bfReserved2=0; i&G`ah>
bfh.bfType=((WORD)('M'<< 8)|'B'); z00:59M4
bfh.bfSize=54+size; {%k;V ~
bfh.bfOffBits=54; &,kB7r"
CFile bf; *A9{H>Vq
if(bf.Open(name,CFile::modeCreate|CFile::modeWrite)){ +Y^F>/ 4=Y
bf.WriteHuge(&bfh,sizeof(BITMAPFILEHEADER)); ^znv[
bf.WriteHuge(&bih,sizeof(BITMAPINFOHEADER)); [(UqPd$
bf.WriteHuge(lpData,size); k{w^MOHNg
bf.Close(); )Is*-
W
nCount++; |g^W @.P
} s!!t
GlobalFreePtr(lpData); 9i[2z:4HJ
if(nCount==1) /lok3J:
m_Number.Format("%d picture captured.",nCount); Gqc6).tn
else H+&w