Differences

This shows you the differences between two versions of the page.

--- en:docs:fapi:doschdir [2018/09/02 03:51] – prokushev
+++ en:docs:fapi:doschdir [2021/09/17 03:42] (current) – prokushev
@@ Line 1: / Line 1: @@
-{{logos:os2.gif?35x35}} {{logos:dos.gif?35x35}}
+{{page>en:templates:fapiint}}
 ====== DosChDir ======
 This call defines the current directory for the requesting process.
-==Syntax==
+===== Syntax =====
-  DosChDir (DirName, Reserved)
+<code c>
+DosChDir (DirName, Reserved)
+</code>
-==Parameters==
+===== Parameters =====
-  *DirName (PSZ) - input : Address of the ASCIIZ directory path name.
-  *Reserved (ULONG) - input : Reserved and must be set to zero.
-==Return Code==
+  *DirName ([[PSZ]]) - input : Address of the ASCIIZ directory path name.
+  *Reserved ([[ULONG]]) - input : Reserved and must be set to zero.
-  rc (USHORT) - return
+===== Return Code =====
+rc ([[USHORT]]) - return
 Return code descriptions are:
@@ Line 28: / Line 32: @@
   * 206  ERROR_FILENAME_EXCED_RANGE
-==Remarks==
+===== Remarks =====
 The directory path is not changed if any member of the path does not exist. The current directory changes only for the requesting process.
-For FSDs, the case of the current directory is set according to the DirName passed in, not according to the case of the directories on disk. For example, if the directory "c:\bin" is created and DosChDir is called with DirName "c:\bin", the current directory returned by DosQCurDir will be "c:\bin".
+For FSDs, the case of the current directory is set according to the DirName passed in, not according to the case of the directories on disk. For example, if the directory "c:\bin" is created and DosChDir is called with DirName "c:\bin", the current directory returned by [[DosQCurDir]] will be "c:\bin".
 Programs running without the NEWFILES bit set are allowed to DosChDir to a non-8.3 filename format directory.
-DosQSysInfo must be used by an application to determine the maximum path length supported by OS/2. The returned value should be used to dynamically allocate buffers that are to be used to store paths.
+[[DosQSysInfo]] must be used by an application to determine the maximum path length supported by OS/2. The returned value should be used to dynamically allocate buffers that are to be used to store paths.
-==Example Code==
+===== Example Code =====
-===C Binding===
-  #define INCL_DOSFILEMGR
+==== C Binding ====
-  USHORT  rc = DosChDir(DirName, Reserved);
+<code c>
+#define INCL_DOSFILEMGR
-  PSZ              DirName;       /* Directory path name *
-  ULONG            0;             /* Reserved (must be zero) */
+USHORT  rc = DosChDir(DirName, Reserved);
-  USHORT           rc;            /* return code */
+PSZ              DirName;       /* Directory path name */
+ULONG            0;             /* Reserved (must be zero) */
+USHORT           rc;            /* return code */
+</code>
 This example changes directories to \os2\system.
+<code c>
+#define INCL_DOSFILEMGR
-  #define INCL_DOSFILEMGR
+#define PATH "\\os2\\system"
+#define RESERVED 0L
-  #define PATH "\\os2\\system"
-  #define RESERVED 0L
-  USHORT rc;
-     rc = DosChDir(PATH, RESERVED);
-===MASM Binding===
+USHORT rc;
-  EXTRN  DosChDir:FAR
+rc = DosChDir(PATH, RESERVED);
-  INCL_DOSFILEMGR     EQU 1
+</code>
+==== MASM Binding ====
+<code asm>
+EXTRN  DosChDir:FAR
+INCL_DOSFILEMGR     EQU 1
-  PUSH@  ASCIIZ  DirName       ;Directory path name string
+PUSH@  ASCIIZ  DirName       ;Directory path name string
-  PUSH   DWORD   0             ;Reserved (must be zero)
+PUSH   DWORD   0             ;Reserved (must be zero)
-  CALL   DosChDir
+CALL   DosChDir
+</code>
 Returns WORD
-=== Note ===
+===== Note =====
 Text based on http://www.edm2.com/index.php/DosChDir