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標題: 未公開API函數(shù)揭秘——通用對話框 [打印本頁]
          

          
作者: hbhdgpyz    時間: 2008-9-28 16:29
          
標題: 未公開API函數(shù)揭秘——通用對話框
          <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話框，但是仍然有部分我們可能會用到的系統(tǒng)對話框它卻沒有提供。如果試圖復制這些系統(tǒng)對話框將是一件麻煩的苦差事。幸好</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話框，本文將帶你去發(fā)掘一些未公開的</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)，以實現(xiàn)這些對話框。</SPAN></P>1 y) B" @( f( A: `, {
          
<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>! d2 |! J5 t- ^/ ]) L% {) R1 @, T
          
<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</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</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'">。這個順序號就是未公開函數(shù)的別名。也就是說在聲明未公開</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，必須加上它的別名。例如下面要說到的</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)會提示你找不到函數(shù)的入口點。</SPAN></P>) [' s  _1 @% v2 N1 [0 S% ?. F
          
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
          
2 ?% u. H0 ~$ |( u3 t9 |  M# x5 Y<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</SPAN></P>
          
$ A) a: p9 ]8 D8 k<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
          
  A+ }& L% _& k+ n2 y<P class=MsoNormal><SPAN lang=EN-US>BOOL WINAPI PickIconDlg(</SPAN></P>8 f& T# m* p: ?
          
<P class=MsoNormal><SPAN lang=EN-US>HWND hwndOwner, </SPAN></P>6 r7 Y4 V% y; @. Y
          
<P class=MsoNormal><SPAN lang=EN-US>LPSTR lpstrFile, </SPAN></P>! _2 Q7 b. }8 h! v$ [
          
<P class=MsoNormal><SPAN lang=EN-US>DWORD nMaxFile, </SPAN></P>( _: n* L/ l0 M
          
<P class=MsoNormal><SPAN lang=EN-US>LPDWORD lpdwIconIndex);</SPAN></P>
          
; u& h# b1 I# m8 f( m3 G! B; x' c8 c<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>7 ?8 D7 u: g/ a5 b1 U/ E' c3 x, L
          
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
          
- q# _3 Y: A7 o& ]4 q' V- ^) F<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'">指向一個變量其中包含基于零的圖標的索引。函數(shù)返回后它包含新圖標的索引值。</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，則返回值為真，如果用戶選擇取消按鈕或是系統(tǒng)菜單的關閉選項則返回值為假。</SPAN></P>7 P( d3 j. D8 J8 P5 a! n' V
          
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>% b% }2 P! q' Y9 N4 A
          
<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋體; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">運行程序對話框</SPAN></P>
          
. Q7 x  P$ Z/ j* d: L<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
          
; E9 p8 B; u0 m/ P2 S0 `' g! _<P class=MsoNormal><SPAN lang=EN-US>void WINAPI RunFileDlg(</SPAN></P>
          
3 r: n! j0 p/ @5 B& ^, W+ [, e<P class=MsoNormal><SPAN lang=EN-US>HWND hwndOwner, </SPAN></P>
          
  M9 s- \) h& Z! I) L<P class=MsoNormal><SPAN lang=EN-US>HICON hIcon, </SPAN></P>" v  y/ Z& J4 o( e2 q# r4 N" ?( ?, O
          
<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrDirectory, </SPAN></P>
          
1 c8 {! @( r! j( h" U; q<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrTitle, </SPAN></P>
          
! c& V! M) Y0 J0 B  X2 L' `<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrDescription,</SPAN></P>. U1 P, f  [: Q7 f
          
<P class=MsoNormal><SPAN lang=EN-US>UINT uFlags);</SPAN></P>
          
5 W/ p7 N* ^' ^+ Y<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>& K. A4 E: _0 v2 q2 i0 A
          
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>' C% ^+ M9 B4 o
          
<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>7 A' V8 P% W6 s, y# G: a( `6 ]
          
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
          
4 h6 q) c0 O2 Z( x: n: n<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>
          
; D: p" Q& [" c" Z; Q  \<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>) p: C6 p( L3 H0 e! N; ^, H
          
<P class=MsoNormal><SPAN lang=EN-US>RFF_NOBROWSE 0x01 Removes the browse button. </SPAN></P>
          
. }: z) E, i" f; g<P class=MsoNormal><SPAN lang=EN-US>RFF_NODEFAULT 0x02 No default item selected. </SPAN></P>" V3 ]0 E2 a. K* j
          
<P class=MsoNormal><SPAN lang=EN-US>RFF_CALCDIRECTORY 0x04 Calculates the working directory from the file name. </SPAN></P>/ m' M4 M" P' C$ `
          
<P class=MsoNormal><SPAN lang=EN-US>RFF_NOLABEL 0x08 Removes the edit box label. </SPAN></P>6 U  V' P& V6 R& d
          
<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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