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Gohan — Fri, 16 May 2008 18:05:00 GMT

�q�两天对于HOOK的技术有了一个入门的学习�Q�用�q�vista的同学会发现vista重命名一个文件比如vista.exe�Q�他会自动选中vista忽略掉扩展名�Q�带来比较方便的用户体验�Q�学了一些hook我也惌��试xp下能不能做这��L��事情。于是参考一些文章，勉强实现了，有一点儿�~�陷�Q�请看最后）�?/p>

�l�过观察我发现重命名�Ӟ��资源��理器会向他的子�H�口listview发送一个LVM_EDITLABELA的控制消息，所以我使用了WH_CALLWNDPROCRET�c�d��的全局挂钩�Q�这个挂钩可以在sendmessage�l�束以后处理传送和�q�回的数据。发送了LVM_EDITLABELA消息后，会在lParam得到一个编辑窗口的句柄�Q�只需之后对这个窗口发送EM_SETSEL控制消息��p��够改变重命名时候的高亮区域。hook回调函数如下�Q?/p>

   1: static LRESULT CALLBACK msghook(UINT nCode, WPARAM wParam, LPARAM lParam)   2: {   3:     if(nCode < 0)   4:     {   5:         CallNextHookEx(hook,nCode,wParam,lParam);   6:         return 0;   7:     }   8:     LPCWPRETSTRUCT msg = (LPCWPRETSTRUCT) lParam;   9:     if(msg->message == LVM_EDITLABELA || msg->message == LVM_EDITLABELW)  10:     {  11:         GetClassName(msg->hwnd,className,255);  12:         GetWindowText(msg->hwnd,wndName,255);  13:         if(0==_tcscmp(className,_TEXT("SysListView32")))  14:         {  15:             if(0==_tcscmp(wndName,_TEXT("FolderView")))  16:             {  17:                 hEditWnd = (HWND)msg->lResult;  18:                 GetWindowText(hEditWnd,className,255);//暂时攑օ�className  19:                 SendMessage(hEditWnd,EM_SETSEL,0,findDot(className));  20:             }  21:         }  22:     }  23:     return CallNextHookEx(hook,nCode,wParam,lParam);  24: }

className与wndName是两个TCHAR数组�Q�从hwnd获取信息存在那里�q�行判断是否为Shell中的listview�Q�避免在其它使用listview的应用程序里会进行之后的处理�?/p>

工程文�g下蝲�Q?a href="http://m.shnenglu.com/Files/gohan/HookDemoSrc.rar" target="_blank">点这�?/a>

�E�序下蝲�Q?a href="http://m.shnenglu.com/Files/gohan/GRenamer.rar" target="_blank">点这�?/a>

使用�Ҏ��Q�编译以后直接运行GRnamer��可以，如果不想用了�Q�从��d��理器把它关闭，没有做trayicon之类的东西，因�ؓ只是个demo�?/p>

最后说一下缺��P��~�陷��是�q�样做没有办法判断文件与文�g夹的区别�Q�所以会有如囄��效果�Q�我自己没有惛_��解决的方法，误��Z��指点。：�Q?

参考的文章�Q?/p>

msdn Hooks hook的全部参�?/p>

codeproject Hooks and DLLs 我的hook dll都是照着它写的�?/p>

Gohan 2008-05-17 02:05 发表评论

获取�l�定路径的图标，演示SHGetFileInfo用法

Gohan — Thu, 01 May 2008 20:54:00 GMT

��Z��上次那个SHBrowseForFolder用法的演�C�Z���?/font>

建立的仍然是Win32 命��o行的工程�Q�所以入口点为main(),需要手动获取HINSTANCE�l�构。程序在WINXP+VS2005���试通过

/********************************************************************
  created:  2008/05/02
  created:  2:5:2008   3:40

            main.cpp
  author:    Gohan 
  purpose:  演示SHBrowseForFolder用法
            演示SHGetFileInfo获取路径图标    
            演示Picture Box在SDK里的使用�Ҏ��

*********************************************************************/
#include 
#include 
#include "resource.h"
HICON g_icon; 
RECT g_rect;
TCHAR g_path[MAX_PATH];
void OnInitDlg(HWND hwnd)
{
    GetWindowRect(GetDlgItem(hwnd, IDC_ICON1), &g_rect);
    MapWindowPoints(NULL, hwnd, (LPPOINT) &g_rect, 2);
    DestroyWindow(GetDlgItem(hwnd, IDC_ICON1));
    SetDlgItemText(hwnd,IDC_PATH,g_path);
}
void OnPaint(HWND hwnd)
{
    PAINTSTRUCT ps;
    HDC hdc = BeginPaint(hwnd, &ps);
    DrawIcon(hdc,g_rect.left,g_rect.left,g_icon);
    EndPaint(hwnd,&ps);
}
BOOL CALLBACK DlgProc (HWND hDlg, UINT message, 
                            WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
    case WM_INITDIALOG :
        OnInitDlg(hDlg);
        return TRUE ;
    case WM_PAINT:
        OnPaint(hDlg);
        return TRUE;
    case WM_COMMAND :
        switch (LOWORD (wParam))
        {
        case IDOK :
        case IDCANCEL :
            EndDialog (hDlg, 0) ;
            return TRUE ;
        }
        break ;
    }
    return FALSE ;
}
int main()
{
    HINSTANCE hInstance = (HINSTANCE)GetModuleHandle(NULL);
    BROWSEINFO bi;
    ZeroMemory(&bi,sizeof(BROWSEINFO));
    LPMALLOC pMalloc;
    LPITEMIDLIST pidl = SHBrowseForFolder(&bi);
    
    if(pidl != NULL)
    {
        SHGetPathFromIDList(pidl,g_path);
        SHFILEINFO sfi;
        ZeroMemory(&sfi,sizeof(SHFILEINFO));
        SHGetFileInfo(g_path,0,&sfi,sizeof(SHFILEINFO),SHGFI_ICON);
        g_icon = sfi.hIcon;
        DialogBox (hInstance, MAKEINTRESOURCE(IDD_DIALOG1), 0, DlgProc) ;
        //MessageBox(NULL,path,TEXT("Choose"),MB_OK);
        if(SUCCEEDED(SHGetMalloc(&pMalloc)))
        {
            pMalloc->Free(pidl);
            pMalloc->Release();
        }
    }
    else
    {
        MessageBox(NULL,TEXT("),TEXT("Choose"),MB_OK);
    }
}
/************************************************************************/
/* resource.h                                                           */
/************************************************************************/
#define IDD_DIALOG1                     101
#define IDC_PATH                        1001
#define IDC_ICON1                       1002
/************************************************************************/
/* demo.rc Microsoft Visual C++ generated resource script.              */
/************************************************************************/
#include "resource.h"
#include "afxres.h"
/////////////////////////////////////////////////////////////////////////////
//
// Dialog
//

IDD_DIALOG1 DIALOGEX 0, 0, 126, 83
STYLE DS_SETFONT | DS_MODALFRAME | DS_FIXEDSYS | DS_CENTER | WS_POPUP
FONT 8, "MS Shell Dlg", 400, 0, 0x1
BEGIN
    DEFPUSHBUTTON   "���定",IDOK,69,7,50,14
    PUSHBUTTON      "取消",IDCANCEL,69,24,50,14
    CONTROL         "",IDC_ICON1,"Static",SS_WHITEFRAME | SS_REALSIZEIMAGE,13,10,20,20,WS_EX_TRANSPARENT
    LTEXT           "静�?,IDC_PATH,14,44,89,21,0,WS_EX_CLIENTEDGE
END


/////////////////////////////////////////////////////////////////////////////

Gohan 2008-05-02 04:54 发表评论

��览文�g夹对话框�Q�演�C�SHBrowseForFolder用法

Gohan — Thu, 24 Apr 2008 05:15:00 GMT

/********************************************************************
  created:  2008/04/24
  created:  24:4:2008   12:47
  author:    Gohan 
                http://feed.feedsky.com/gohan
  purpose:  演示SHBrowseForFolder用法
*********************************************************************/
#include 
#include 
int main()
{
    BROWSEINFO bi;
    ZeroMemory(&bi,sizeof(BROWSEINFO));
    LPMALLOC pMalloc;
    LPITEMIDLIST pidl = SHBrowseForFolder(&bi);
    TCHAR * path = new TCHAR[MAX_PATH];
    if(pidl != NULL)
    {
        SHGetPathFromIDList(pidl,path);
        MessageBox(NULL,path,TEXT("Choose"),MB_OK);
        if(SUCCEEDED(SHGetMalloc(&pMalloc)))//pidl指向的对象用完应该释放，之前忽略�?br>        {
            pMalloc->Free(pidl);
            pMalloc->Release();
        }
    }
    else
    {
        MessageBox(NULL,TEXT("选择为空"),TEXT("Choose"),MB_OK);
    }
    delete path;//谢谢true的提醒，以后我一定会更加慎重
}

Gohan 2008-04-24 13:15 发表评论

Gohan — Wed, 27 Feb 2008 16:48:00 GMT

摘要: 之前��小学了一点win32 LPC的知识，�q�个sample是wine ref的一个test�Q�感觉已�l�很全面。今天还找来了两本关于Ntdll斚w��的电子书�Q�Windows_2000_Native_API_Reference�Q�Undocumented Windows 2000 Secrets..都是英文书，慢慢啃�? 1 /* Unit test suite for Ntdll Port API fun... 阅读全文

Gohan 2008-02-28 00:48 发表评论

关于Up/Down控�g�Q�spin control�Q��用方法的一点小心得

Gohan — Tue, 05 Feb 2008 18:14:00 GMT

学用�U�SDK写win32�E�序�Q�资料有一�?a target="_blank">英文版Windows Programming电子书，以及MSDN�Q�用��C��Up/Down控�g让用戯��入数据，同时也提供了Edit box.两者的同步是否会有问题呢？
��试了半天，�l�于有了点结果：
1、初始化控�g�Q�对控�g句柄发�?a target="_blank">UDM_SETRANGE32消息�Q�进行范围的初始话�?a target="_blank">UDM_SETPOS32消息讄��初倹{�?br>

2、关联Edit Box 控�g�Q�这个我弄了半天才明白，首先要在资源�~�辑中的对话框编辑界面，讑֮�Tab控�g的顺序（格式->Tab键顺序）�?font color="#ff0000">��Edit Box的序可��|�成Up/Down控�g序号减一�Q�设定Up/Down的属性Auto Buddy为True�Q�Set Buddy Integer为true�?br>3、现在已�l�能够正常的使用Up/Down功能了�?br> 可是如果不想用控件关�?/font>�Q�而是自己讑֮�逻辑怎么办呢�Q�几个小时之前我不会兌��的方法，惌��努力实现手动�l�护Edit box的功能。最后终于有了些教训�Q�得��C��点心得：
在Up/Down的父�H�口�Q�一般是对话框）的消息处理函��C��Q�对WM_VSCROLL消息做一个处理，当lParam与Up/Down的窗口句柄相�{�时�Q�对Up/Down的操作结�?/font> �Q�其中wParam中的高位部分是Up/Down的��|��用这个值来更新Edit Box�?br>WM_VSCROLL nScrollCode = (int)LOWORD(wParam);
nPos = (short int)HIWORD(wParam);
hwndScrollBar = (HWND) lParam;

今天我的教训是��用了WM_NOTIFY的消息，处理UDN_DELTAPOS的通知�Q�lParam是一个结构：NMUPDOWN�Q�通过�q�个�l�构来更新Edit box�Q�因��个通知不等操作�l�束��已�l�发出，�q�且�q�个�l�构体中有当时的位置以及变化量，更新时候还需要将当时位置加上变化量。这��L��更新��׃��出现一定的问题�Q�有时候pos已经��C��讑֮�好的范围边界�Q�pos加上变化量就会超��界，�q�要�l�箋判断�Q�效率等�{�问题就出现了，而且十分�ȝ��。所以最好��用关联的�Ҏ��Q�如果有�Ҏ��要求��q��WM_VSCROLL响应�Q?font color="#ff0000">千万不要使用UDN_DELTAPOS�Q�白花功�?/font>�Q�呵��c��就写到�q�里.

今天是除夕了�Q�祝所有程序员朋友新春快乐�Q�！

Gohan 2008-02-06 02:14 发表评论

��译习作:Create your own controls - the art of subclassing 子类�?�l�承公共控�g

Gohan — Thu, 24 Jan 2008 16:02:00 GMT

摘要: Create your own controls - the art of subclassing By Chris MaunderAn introduction to subclassing the Windows common controls using MFC Introduction �E�序员们可以用许多windows通用控�g提供的功能方便的�~�程,�q�些控�g从list到button甚至... 阅读全文

Gohan 2008-01-25 00:02 发表评论

Gohan — Sat, 08 Dec 2007 10:04:00 GMT

摘要: 接着上回开�?书上的第二个例子直接贴我略加修改的代�?后面附有注释: void Cfont2View::OnPrepareDC(CDC* pDC, CPrintInfo* pInfo) {//惌��的是OnPrepareDC在每�ơ调用OnDraw之前调用,可在里面�q�行初始化的一些操�? CRect clientRect; ... 阅读全文

Gohan 2007-12-08 18:04 发表评论

Gohan — Mon, 26 Nov 2007 13:46:00 GMT

摘要: �W�六�?GDI,字体,位图 �W�五章的例子��有��单的CDC�c�d��的应�?�q�次更加详细的�ȝ��了设备环境类型及其应用常用类型CClientDC和CWindowDC,��做昄��讑֤�函数 CDC::GetClipBox(LPRECT lpRect)能够获取当前操作dc可见的区域矩形吧,我大概这样子理解.当然,映射模式不同的情况得到的��g��不一�?是逻辑坐标单位只有改写视图�cȝ��OnPaint�c�L��才会用CPaint... 阅读全文

Gohan 2007-11-26 21:46 发表评论

vc++技术内�q�学习心�?

Gohan — Fri, 23 Nov 2007 08:37:00 GMT

�q�篇心得关于技术内�q�第五章,比较的基��..
我是VC++的初学�?br>vc++技术内�q�这本书我是��d��暑假开始看�?span lang=EN-US>,那时候刚�?span lang=EN-US>windows�~�程,虽然之前用过c#,vb,不过都没怎么�l�习,�q�本书我大概看了前面�?span lang=EN-US>80%,不过都未曑֊��?span lang=EN-US>,�q�日打算从头�l�习一�?span lang=EN-US>,在这里记些笔�?span lang=EN-US>
�W�五章第一个例子很��?/strong>
一个单文档MFC应用�E�序,View�c�M��一�?span lang=EN-US>CRect�c�d��变量保存矩�Ş的信�?span lang=EN-US>,一�?span lang=EN-US>int型保存矩形颜色的属�?span lang=EN-US>
WM_LBUTTONDOWN响应函数判断单击左键旉��标位�|�是不是在之前那个矩形区域内,是的话变换矩形颜色的属�?span lang=EN-US>,而且命��o矩�Ş区域重绘..
OnDraw()中用dc选取矩�Ş颜色,�l�制矩�Ş的内切椭�?span lang=EN-US>

应用的函数有:

virtual CGdiObject* CDC::SelectStockObject(

int nIndex

);//选取颜色,�q�里只选画刷大概有如下��d��
BLACK_BRUSH DKGRAY_BRUSH GRAY_BRUSH HOLLOW_BRUSH LTGRAY_BRUSH NULL_BRUSH WHITE_BRUSH
BOOL CDC::Ellipse(LPCRECT lpRect);//�ȝ��形对应的内切椭圆
BOOL CRECT::PtInRect(

POINT point

) const throw( );//判断point是否在矩形中

注意一点就�?/span>CView::OnLButtonDown(UINT nFlags, CPoint point)
�q�里�?/span>Point坐标�?/span>View�?/span>client坐标,如果需要全局坐标需要�{�?/span>

�W�二个例子关于映��模�?/span>

不同的映��模�?/span>,对应的坐标是有区别的,而且他们的逻辑单位比例都不�?/span>

固定比例的映��模式有

Mapping Mode

Logical Unit

MM_LOENGLISH

0.01 inch

MM_HIENGLISH

0.001 inch

MM_LOMETRIC

0.1 mm

MM_HIMETRIC

0.01 mm

MM_TWIPS

1/1440 inch

可变比例的映��模�?/span>

MM_ISOTROPIC and MM_ANISOTROPIC

我自己写了一�?/span>Demo看了一�?/span>,好像只有MM_ANISOTROPIC�?/span>MM_TEXT�?/span>x轴左向右,y轴上��C��,DC原点�?/span>0,0

其他的映��模�?/span>x轴一�?/span>,y轴变成了从下至上,DC原点�q�是0,0

CDC的几个函数这里有必要说说
virtual int CDC::SetMapMode(
   int nMapMode
);
int CDC::GetMapMode() const;
讄��/��d��DC的映��模�?/span>

virtual CSize CDC::SetWindowExt(
   int cx,
   int cy
);//讄��H�体范围

virtual CSize CDC::SetViewportExt(
   int cx,
   int cy
);//讄��视口范围

virtual CPoint CDC::SetViewportOrg(
   int x,
   int y
);//讄��(0,0)点的位置

�H�体范围和视口范围的讄��会媄响可变比例映��?/span>
可变比例映射�?/span>x,y计算�Ҏ��参看下面的公�?/span>

x scale factor = x viewport extent / x window extent

y scale factor = y viewport extent / y window extent

device x = logical x* x scale factor + x origin offset

device y = logical y* y scale factor + y origin offset

CDC成员函数的参数大都是用逻辑坐标,但是CWnd的成员却以设备坐标�ؓ参数

但是CDC成员中有函数

LPtoDP,��逻辑坐标转换��备坐�?/span>

void LPtoDP( LPPOINT lpPoints, int nCount = 1 ) const; void LPtoDP( LPRECT lpRect ) const; void LPtoDP( LPSIZE lpSize ) const;
DPtoLP,刚好相反

void DPtoLP( LPPOINT lpPoints, int nCount = 1 ) const; void DPtoLP( LPRECT lpRect ) const; void DPtoLP( LPSIZE lpSize ) const;

�W�三个例子关于滚动条

文档视图的工�E�徏立向��g��可以�?/span>View�l�承�?/span>CScrollView,使得View带有滚动�?/span>

OnInitialUpdate函数在视囑־�立后,OnDraw执行之前执行,所以对于滚动条的初始化可以攑֜��q�个函数�?/span>

void CScrollingViewWindowView::OnInitialUpdate()

{

    CScrollView::OnInitialUpdate();

    CSize sizeTotal;

    // TODO: 计算此视囄��合计大小

    sizeTotal.cx = 20000; //20cm

    sizeTotal.cy = 30000; //30cm

    CSize sizePage(sizeTotal.cx/2,sizeTotal.cy/2);

    CSize sizeLine(sizeTotal.cx/50,sizeTotal.cy/50);

    SetScrollSizes(MM_TEXT, sizeTotal,sizePage,sizeLine);

}

虽然是初始化了滚动条,但是不能够��用快捷键(上下左右,pagedown啥的),需要手动重�?/span>afx_msg void OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags);

需要用�?/span>CWnd::OnVScroll, CWnd::OnHScroll,分别控制�U�向与横向两个滚动条

nSBCode

Specifies a scroll-bar code that indicates the user's scrolling request. This parameter can be one of the following:

·         SB_BOTTOM   Scroll to bottom.

·         SB_ENDSCROLL   End scroll.

·         SB_LINEDOWN   Scroll one line down.

·         SB_LINEUP   Scroll one line up.

·         SB_PAGEDOWN   Scroll one page down.

·         SB_PAGEUP   Scroll one page up.

·         SB_THUMBPOSITION   Scroll to the absolute position. The current position is provided in nPos.

·         SB_THUMBTRACK   Drag scroll box to specified position. The current position is provided in nPos.

·         SB_TOP   Scroll to top.

                                                       by gohan 11.23

Gohan 2007-11-23 16:37 发表评论

Mapping Mode	Logical Unit
MM_LOENGLISH	0.01 inch
MM_HIENGLISH	0.001 inch
MM_LOMETRIC	0.1 mm
MM_HIMETRIC	0.01 mm
MM_TWIPS	1/1440 inch

Gohan — Sat, 02 Jun 2007 16:26:00 GMT
#define     SubclassWindow(hwnd, lpfn)       \
              ((WNDPROC)SetWindowLongPtr((hwnd), GWLP_WNDPROC, (LPARAM)(WNDPROC)(lpfn)))

�q�个宏是我看�W�七章winshellprograming看到�?很强大的功能,例子是用FindWindowEx扑ֈ�windows开始按钮的�H�口句柄,之后用该宏加入开始按钮的消息处理函数.��M��q�不�?winshell�q�真不是一�?.
MSDN上查SubclassWindow都不是我要的�q�个,虽然功能大体相同�?
下面�q�个��是SetWindowLongPtr函数:

SetWindowLongPtr Function

The SetWindowLongPtr function changes an attribute of the specified window. The function also sets a value at the specified offset in the extra window memory.

�q�个函数改变一个指定窗口的一个属�?它也可设定窗口储存区指定偏移位置的倹{�?br>

This function supersedes the SetWindowLong function. To write code that is compatible with both 32-bit and 64-bit versions of Microsoft Windows, use SetWindowLongPtr.
�q�个函数取代了SetWindowLong函数,��Z��兼容32�?4位windows os,��q��q�个函数�?.

Syntax

LONG_PTR SetWindowLongPtr(
    HWND hWnd,
    int nIndex,
    LONG_PTR dwNewLong
);

Parameters

hWnd
[in] Handle to the window and, indirectly, the class to which the window belongs. The SetWindowLongPtr function fails if the process that owns the window specified by the hWnd parameter is at a higher process privilege in the User Interface Privilege Isolation (UIPI) hierarchy than the process the calling thread resides in.
�q�回fail当拥有指定窗口的京城比用户UI权限隔绝(??)高的时�?.不知道翻译对�?

Microsoft Windows XP and earlier: The SetWindowLongPtr function fails if the window specified by the hWnd parameter does not belong to the same process as the calling thread.

�q�个意思大概是函数��p�|如果调用�q�程传入的hWnd句柄不属于调用包含这个函数的�U�程的进�E�（应用�E�序�Q?

nIndex
[in] Specifies the zero-based offset to the value to be set. Valid values are in the range zero through the number of bytes of extra window memory, minus the size of an integer. To set any other value, specify one of the following values.
�q�个不用��译�?很明了哈�?

GWL_EXSTYLE
Sets a new extended window style. For more information, see CreateWindowEx.
GWL_STYLE
Sets a new window style.
GWLP_WNDPROC
Sets a new address for the window procedure.
GWLP_HINSTANCE
Sets a new application instance handle.
GWLP_ID
Sets a new identifier of the window.
GWLP_USERDATA
Sets the user data associated with the window. This data is intended for use by the application that created the window. Its value is initially zero.

The following values are also available when the hWnd parameter identifies a dialog box.

DWLP_DLGPROC
Sets the new pointer to the dialog box procedure.
DWLP_MSGRESULT
Sets the return value of a message processed in the dialog box procedure.
DWLP_USER
Sets new extra information that is private to the application, such as handles or pointers.

dwNewLong
[in] Specifies the replacement value.

Return Value

If the function succeeds, the return value is the previous value of the specified offset.
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If the function fails, the return value is zero. To get extended error information, call GetLastError.

If the previous value is zero and the function succeeds, the return value is zero, but the function does not clear the last error information. To determine success or failure, clear the last error information by calling SetLastError(0), then call SetWindowLongPtr. Function failure will be indicated by a return value of zero and a GetLastError result that is nonzero.

Remarks

Certain window data is cached, so changes you make using SetWindowLongPtr will not take effect until you call the SetWindowPos function.

If you use SetWindowLongPtr with the GWLP_WNDPROC index to replace the window procedure, the window procedure must conform to the guidelines specified in the description of the WindowProc callback function.

If you use SetWindowLongPtr with the DWLP_MSGRESULT index to set the return value for a message processed by a dialog box procedure, the dialog box procedure should return TRUE directly afterward. Otherwise, if you call any function that results in your dialog box procedure receiving a window message, the nested window message could overwrite the return value you set by using DWLP_MSGRESULT.

Calling SetWindowLongPtr with the GWLP_WNDPROC index creates a subclass of the window class used to create the window. An application can subclass a system class, but should not subclass a window class created by another process. The SetWindowLongPtr function creates the window subclass by changing the window procedure associated with a particular window class, causing the system to call the new window procedure instead of the previous one. An application must pass any messages not processed by the new window procedure to the previous window procedure by calling CallWindowProc. This allows the application to create a chain of window procedures.

Reserve extra window memory by specifying a nonzero value in the cbWndExtra member of the WNDCLASSEX structure used with the RegisterClassEx function.

Do not call SetWindowLongPtr with the GWLP_HWNDPARENT index to change the parent of a child window. Instead, use the SetParent function.

If the window has a class style of CS_CLASSDC or CS_PARENTDC, do not set the extended window styles WS_EX_COMPOSITED or WS_EX_LAYERED.

Windows XP/Vista: Calling SetWindowLongPtr to set the style on a progressbar will reset its position.

Function Information

先到�q�里,以后会写更多Win32的基��知识,当我学到的时�?.

btw,有本叫the old new thing ��g��很强,不知道什么时候能有一�?..

Gohan 2007-06-03 00:26 发表评论