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標(biāo)題: 未公開(kāi)API函數(shù)揭秘——通用對(duì)話框 [打印本頁(yè)]
      

      
作者: hbhdgpyz    時(shí)間: 2008-9-28 16:29
      
標(biāo)題: 未公開(kāi)API函數(shù)揭秘——通用對(duì)話框
      <P class=MsoNormal><SPAN lang=EN-US>COMDLG32.DLL </SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">為我們提供了一些很有用的對(duì)話框，但是仍然有部分我們可能會(huì)用到的系統(tǒng)對(duì)話框它卻沒(méi)有提供。如果試圖復(fù)制這些系統(tǒng)對(duì)話框?qū)⑹且患闊┑目嗖钍?。幸?lt;/SPAN><SPAN lang=EN-US>shell32.dll</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">為我們提供了這些對(duì)話框，本文將帶你去發(fā)掘一些未公開(kāi)的</SPAN><SPAN lang=EN-US>API</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函數(shù)，以實(shí)現(xiàn)這些對(duì)話框。</SPAN></P>
      
# ?( \- z0 q. w$ Q1 C7 z7 R8 F<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P>2 Z; I' P+ |# J
      
<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在使用未公開(kāi)的</SPAN><SPAN lang=EN-US>API</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函數(shù)之前，你必須知道聲明未公開(kāi)的</SPAN><SPAN lang=EN-US>API</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函數(shù)與聲明那些公開(kāi)的</SPAN><SPAN lang=EN-US>API</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函數(shù)略有不同，那就是，你必須用到未公開(kāi)</SPAN><SPAN lang=EN-US>API</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函數(shù)的順序號(hào)</SPAN><SPAN lang=EN-US>(ordinal number)</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。這個(gè)順序號(hào)就是未公開(kāi)函數(shù)的別名。也就是說(shuō)在聲明未公開(kāi)</SPAN><SPAN lang=EN-US>API</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函數(shù)時(shí)，必須加上它的別名。例如下面要說(shuō)到的</SPAN><SPAN lang=EN-US>PickIconDlg</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函數(shù)的順序號(hào)為</SPAN><SPAN lang=EN-US>62</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，它的別名就是</SPAN><SPAN lang=EN-US>"#62"</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。如果不這樣做，系統(tǒng)會(huì)提示你找不到函數(shù)的入口點(diǎn)。</SPAN></P>4 X5 S  }( T; _: B( ]) i
      
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>* H6 t2 G! K$ }4 n* T) J  M
      
<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">選取圖標(biāo)</SPAN></P>
      
9 p- U. T1 k6 P. W( ^6 Z0 d! `<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
      
7 l2 X4 I$ E0 |2 i( A" @/ J<P class=MsoNormal><SPAN lang=EN-US>BOOL WINAPI PickIconDlg(</SPAN></P>
      
- ^9 G- l1 R- y$ x. Z<P class=MsoNormal><SPAN lang=EN-US>HWND hwndOwner, </SPAN></P>4 x9 ?: v' M% m1 v
      
<P class=MsoNormal><SPAN lang=EN-US>LPSTR lpstrFile, </SPAN></P>
      
( A' Z. n6 W( W+ g<P class=MsoNormal><SPAN lang=EN-US>DWORD nMaxFile, </SPAN></P>2 R6 s) C3 I* Y2 R! X: X; N/ J
      
<P class=MsoNormal><SPAN lang=EN-US>LPDWORD lpdwIconIndex);</SPAN></P>
      
( n9 [2 Z' R/ g$ [4 \1 n<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">該函數(shù)的順序號(hào)為</SPAN><SPAN lang=EN-US>62</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。</SPAN></P>
      
: L; o8 P0 K8 V. Z7 J1 B<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>, s& W" q, L% [& A
      
<P class=MsoNormal><SPAN lang=EN-US>hwndOwner</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">擁有該對(duì)話框的窗口句柄</SPAN><SPAN lang=EN-US> lpstrFile</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">指向一個(gè)緩沖，包含初始的文件名。函數(shù)返回后它就包含新的文件名。</SPAN><SPAN lang=EN-US>nMaxFile</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">指定緩沖的大小，以字符為單位。</SPAN><SPAN lang=EN-US> lpdwIconIndex</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">指向一個(gè)變量其中包含基于零的圖標(biāo)的索引。函數(shù)返回后它包含新圖標(biāo)的索引值。</SPAN> <SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">如果用戶選擇了圖標(biāo)，則返回值為真，如果用戶選擇取消按鈕或是系統(tǒng)菜單的關(guān)閉選項(xiàng)則返回值為假。</SPAN></P>
      
/ }% O1 k/ H1 M<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>" R! r1 v. X' ]# B$ y
      
<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">運(yùn)行程序?qū)υ捒?lt;/SPAN></P>
      
3 P0 v1 y2 @& V( ~<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P># H" _9 u, f+ P& H8 Z, @) P
      
<P class=MsoNormal><SPAN lang=EN-US>void WINAPI RunFileDlg(</SPAN></P>+ }8 K! C" G& l+ H
      
<P class=MsoNormal><SPAN lang=EN-US>HWND hwndOwner, </SPAN></P>0 ~& J2 m: [% o0 T7 x0 X
      
<P class=MsoNormal><SPAN lang=EN-US>HICON hIcon, </SPAN></P>  l& M6 x" @, o
      
<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrDirectory, </SPAN></P>
      
) j& f% m$ ], Y. R<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrTitle, </SPAN></P>
      
1 d( g/ t/ b/ T, s<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrDescription,</SPAN></P>
      
% r8 z5 o" ?. U% r<P class=MsoNormal><SPAN lang=EN-US>UINT uFlags);</SPAN></P>
      
4 P/ ]0 @/ R5 G: h" |<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">該函數(shù)的順序號(hào)為</SPAN><SPAN lang=EN-US>61</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。在</SPAN><SPAN lang=EN-US>VB</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中可聲明如下：</SPAN></P>
      
; x0 C1 H4 E& M1 A" ?<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
      
- I% s7 o3 t: g& }( n: N<P class=MsoNormal><SPAN lang=EN-US>Private Declare Function RunFileDlg Lib "shell32" Alias "#61" (ByVal hwndOwner As Long, ByVal hIcon As Long, ByVal lpstrDirectory As String, ByVal lpstrTitle As String, ByVal lpstrDescription As String, ByVal uFlags As Long) As Long</SPAN></P>: N% B6 `6 g  r4 Q
      
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
      
1 |( m; M  j) S. Y8 g0 o<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">其中</SPAN><SPAN lang=EN-US>uFlags</SPAN><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">參數(shù)的可選值為</SPAN></P>  M: |2 s/ x2 N" [  h* @
      
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>% p# T5 N, @4 @! T8 E
      
<P class=MsoNormal><SPAN lang=EN-US>RFF_NOBROWSE 0x01 Removes the browse button. </SPAN></P>
      
; h* l4 T' J& Z+ D, D* W: k9 B<P class=MsoNormal><SPAN lang=EN-US>RFF_NODEFAULT 0x02 No default item selected. </SPAN></P>
      
' Z6 U4 v$ _/ f) H  a, I" f<P class=MsoNormal><SPAN lang=EN-US>RFF_CALCDIRECTORY 0x04 Calculates the working directory from the file name. </SPAN></P>( n' T* C, A) g4 ~8 [; s
      
<P class=MsoNormal><SPAN lang=EN-US>RFF_NOLABEL 0x08 Removes the edit box label. </SPAN></P>
      
* _% X$ ^8 l* {3 u. t# p: h; L<P class=MsoNormal><SPAN lang=EN-US>RFF_NOSEPARATEMEM 0x20 Removes the Separate Memory Space check box (Windows NT only). </SPAN></P>




      

      

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