<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?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),以實現(xiàn)這些對話框。</SPAN></P>
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<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>
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<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>
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<P class=MsoNormal><SPAN lang=EN-US>BOOL WINAPI PickIconDlg(</SPAN></P>3 R8 p( J A! W8 |2 x2 l+ F c5 J4 a
<P class=MsoNormal><SPAN lang=EN-US>HWND hwndOwner, </SPAN></P>6 C6 ~2 h k5 l4 X3 ~) C9 r/ ~$ s
<P class=MsoNormal><SPAN lang=EN-US>LPSTR lpstrFile, </SPAN></P>$ Y. f' |+ \( V7 D6 V$ e' H
<P class=MsoNormal><SPAN lang=EN-US>DWORD nMaxFile, </SPAN></P>
2 h+ t* G* ]- |) @2 r+ h4 a<P class=MsoNormal><SPAN lang=EN-US>LPDWORD lpdwIconIndex);</SPAN></P>
/ I; F( X4 _) }5 }( H1 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>
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<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(guān)閉選項則返回值為假。</SPAN></P>* X2 h( r9 e R% P. z
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<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?qū)υ捒?lt;/SPAN></P>
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( \0 V- O+ P. q7 d/ v<P class=MsoNormal><SPAN lang=EN-US>void WINAPI RunFileDlg(</SPAN></P>
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<P class=MsoNormal><SPAN lang=EN-US>HICON hIcon, </SPAN></P>
& l' Q6 t% o9 d6 h A1 ]<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrDirectory, </SPAN></P>1 p1 t) ~1 k) y6 R
<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrTitle, </SPAN></P>$ S: a" k. P: \3 H \+ v
<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrDescription,</SPAN></P>
, `) g0 J: x- a/ u% n5 f- r4 g' t<P class=MsoNormal><SPAN lang=EN-US>UINT uFlags);</SPAN></P>9 o; u" e7 A* M8 p) ?/ p# e
<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>. {3 A1 ?! H( G$ v8 L: F
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<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>
0 S% Q& z' c; | n- F( y) V<P class=MsoNormal><SPAN lang=EN-US> <o:p></o:p></SPAN></P>
; _7 u! x, o2 b8 g1 G2 p8 T- G<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>( o% d3 n2 G9 o- [1 D
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<P class=MsoNormal><SPAN lang=EN-US>RFF_NOBROWSE 0x01 Removes the browse button. </SPAN></P>
/ v! c# ^+ i% F5 K<P class=MsoNormal><SPAN lang=EN-US>RFF_NODEFAULT 0x02 No default item selected. </SPAN></P>, |. {6 A: d, K
<P class=MsoNormal><SPAN lang=EN-US>RFF_CALCDIRECTORY 0x04 Calculates the working directory from the file name. </SPAN></P>0 W% U7 f' A, Q4 w" T
<P class=MsoNormal><SPAN lang=EN-US>RFF_NOLABEL 0x08 Removes the edit box label. </SPAN></P>0 {. E. q# B+ i6 b
<P class=MsoNormal><SPAN lang=EN-US>RFF_NOSEPARATEMEM 0x20 Removes the Separate Memory Space check box (Windows NT only). </SPAN></P> |