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標(biāo)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(biāo)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(fù)制這些系統(tǒng)對話框?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>+ |# q" n! \0 a9 ~
      
<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>
      
, t. B. D; C. Z4 s5 U% ]3 U<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>' a  U( Z! t* l7 }1 o# t7 f$ [
      
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>: `/ n- Q7 A+ e- K9 R5 @
      
<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>2 n7 {) W+ k7 Z2 ?+ U" [* `
      
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
      
3 `  [3 f+ l) K" }; J<P class=MsoNormal><SPAN lang=EN-US>BOOL WINAPI PickIconDlg(</SPAN></P>
      
% r3 w% ^) R, k* {9 s8 x1 G- M+ ^<P class=MsoNormal><SPAN lang=EN-US>HWND hwndOwner, </SPAN></P>
      
- c7 J6 z7 Y+ ^* Q8 z( D1 M<P class=MsoNormal><SPAN lang=EN-US>LPSTR lpstrFile, </SPAN></P>
      
; D+ i& Y, I1 U<P class=MsoNormal><SPAN lang=EN-US>DWORD nMaxFile, </SPAN></P>1 r* e/ A" Z: Z0 X
      
<P class=MsoNormal><SPAN lang=EN-US>LPDWORD lpdwIconIndex);</SPAN></P>
      
: S3 v# e8 M1 k, ~<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>, l& A6 M, j2 Z; x& B1 r( p3 M) l
      
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>" k. s: k8 y7 D" C; H6 g# E" l
      
<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(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)閉選項則返回值為假。</SPAN></P>
      
) H  I0 D3 R% q% T% b# @* O<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>+ u- {6 \7 y' e+ c
      
<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>
      
% d% t9 O+ c- i' d9 r, b<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
      
& I! @& @$ i5 }& K/ Q3 A<P class=MsoNormal><SPAN lang=EN-US>void WINAPI RunFileDlg(</SPAN></P>: i) d* L* o4 A, g+ m& q
      
<P class=MsoNormal><SPAN lang=EN-US>HWND hwndOwner, </SPAN></P>
      
8 k, C, u: ?; z<P class=MsoNormal><SPAN lang=EN-US>HICON hIcon, </SPAN></P>
      
6 P* H4 C0 |; B$ I2 N4 p: L7 y<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrDirectory, </SPAN></P>( M9 K8 ^& k* H* f. N
      
<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrTitle, </SPAN></P>4 k, B: s# I0 O# {" c
      
<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrDescription,</SPAN></P>
      
1 Z$ s5 Q+ S3 {: K! c<P class=MsoNormal><SPAN lang=EN-US>UINT uFlags);</SPAN></P>
      
9 O7 s5 O' w6 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>
      
& b/ u* [. G6 h7 H3 H$ z9 h<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>/ b) j2 i  M. F! H' w  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>( D3 a. a. M+ y7 }4 X
      
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
      
( `' _. w4 A  t% U<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># }4 r6 K( E& P* b# F% q
      
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>" n+ ?: X) }) g
      
<P class=MsoNormal><SPAN lang=EN-US>RFF_NOBROWSE 0x01 Removes the browse button. </SPAN></P>
      
9 M  p. h! U0 D) q; x<P class=MsoNormal><SPAN lang=EN-US>RFF_NODEFAULT 0x02 No default item selected. </SPAN></P>% f$ n0 o/ Y( g. y
      
<P class=MsoNormal><SPAN lang=EN-US>RFF_CALCDIRECTORY 0x04 Calculates the working directory from the file name. </SPAN></P>  Z' Y  H9 B" C" _; J2 Z2 x
      
<P class=MsoNormal><SPAN lang=EN-US>RFF_NOLABEL 0x08 Removes the edit box label. </SPAN></P>  ~; X3 x$ h: L" Z  K" ]
      
<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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