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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(shí)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┑目嗖钍隆Ｐ液?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(shí)現(xiàn)這些對話框。</SPAN></P>5 w/ u! m0 i9 ^) s  |
          
<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>' g; T9 d. `! a& _4 X
          
<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(gè)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(shí)，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(diǎn)。</SPAN></P>
          
/ r: z' T  {. g- _3 V; h<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>( K1 |; L: T3 n; w
          
<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>
          
& k5 U8 Q# f( t" p<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
          
0 Y( j8 d- @9 e: z, K<P class=MsoNormal><SPAN lang=EN-US>BOOL WINAPI PickIconDlg(</SPAN></P>3 t  v0 S1 I9 S& V* ?( i
          
<P class=MsoNormal><SPAN lang=EN-US>HWND hwndOwner, </SPAN></P>% t7 H! i  B) e
          
<P class=MsoNormal><SPAN lang=EN-US>LPSTR lpstrFile, </SPAN></P>; c8 y9 n) V; ~( x
          
<P class=MsoNormal><SPAN lang=EN-US>DWORD nMaxFile, </SPAN></P>
          
+ ^# D/ I5 z- O$ ]- ]1 [8 T<P class=MsoNormal><SPAN lang=EN-US>LPDWORD lpdwIconIndex);</SPAN></P>
          
7 W$ x+ j' Q6 J+ i3 h5 m<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>* K; b) H( N# g( W0 v) F3 K
          
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>  W) ]- u) P  N2 `1 s+ w
          
<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(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>6 m9 x, w4 M4 f1 S  x
          
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
          
" p1 ^7 C9 ?& G<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>
          
/ g) c" S( @+ g<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>% G: E* D4 q# a  b& v: o
          
<P class=MsoNormal><SPAN lang=EN-US>void WINAPI RunFileDlg(</SPAN></P># l' ]/ b, ~4 Z; x
          
<P class=MsoNormal><SPAN lang=EN-US>HWND hwndOwner, </SPAN></P>
          
5 J- D$ k  _) `) s2 j; i<P class=MsoNormal><SPAN lang=EN-US>HICON hIcon, </SPAN></P>
          
8 F  Q. s4 T: k7 W4 r, T<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrDirectory, </SPAN></P>
          
" I' s/ Z0 s0 Y( j- s<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrTitle, </SPAN></P>
          
# ^$ M2 r' _1 F* a- C- z# ~$ V<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrDescription,</SPAN></P>+ u7 Z3 e' w; e7 n! d
          
<P class=MsoNormal><SPAN lang=EN-US>UINT uFlags);</SPAN></P>
          
3 }- y; S9 Z5 D* A* D# s9 J<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>
          
; g& ]3 [3 I9 Z8 a; f# T, J<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
          
. C2 @' T' V6 }& j$ B) g4 c4 \- V<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>
          
' a5 d" b/ H; p# O7 j8 A<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>
          
  @0 c5 B; F( q) h+ e<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>3 V# \% g% S6 X) ]1 ^; _+ J
          
<P class=MsoNormal><SPAN lang=EN-US>&nbsp;<o:p></o:p></SPAN></P>7 ]% k$ q" }& k* ~2 z% Y
          
<P class=MsoNormal><SPAN lang=EN-US>RFF_NOBROWSE 0x01 Removes the browse button. </SPAN></P>
          
( b; {4 z: T1 X/ {# J0 H* m' H<P class=MsoNormal><SPAN lang=EN-US>RFF_NODEFAULT 0x02 No default item selected. </SPAN></P>
          
8 u6 k4 ^1 L0 s( N+ v- k<P class=MsoNormal><SPAN lang=EN-US>RFF_CALCDIRECTORY 0x04 Calculates the working directory from the file name. </SPAN></P>  z  B+ A2 Y1 L/ A1 C# p
          
<P class=MsoNormal><SPAN lang=EN-US>RFF_NOLABEL 0x08 Removes the edit box label. </SPAN></P>
          
, k8 m6 }$ l" I3 ]+ S<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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