CDE/cde/doc/C/guides/man/m3_Dt/EdSetCFF.sgm

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<RefMeta>
<RefEntryTitle>DtEditorSetContentsFromFile</RefEntryTitle>
<ManVolNum>library call</ManVolNum>
</RefMeta>
<RefNameDiv>
<RefName><Function>DtEditorSetContentsFromFile</Function></RefName>
<RefPurpose>load data from a file into a DtEditor widget
</RefPurpose>
</RefNameDiv>
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<RefSynopsisDiv>
<FuncSynopsis Remap="ANSI">
<FuncSynopsisInfo>#include &lt;Dt/Editor.h>
</FuncSynopsisInfo>
<FuncDef>DtEditorErrorCode <Function>DtEditorSetContentsFromFile</Function></FuncDef>
<ParamDef>Widget <Parameter>widget</Parameter></ParamDef>
<ParamDef>char *<Parameter>fileName</Parameter></ParamDef>
</FuncSynopsis>
</RefSynopsisDiv>
<RefSect1>
<Title>DESCRIPTION</Title>
<Para>The
<Function>DtEditorSetContentsFromFile</Function> function loads the contents of a file into a
DtEditor widget.
Any data currently in the DtEditor widget is lost.
After the data is loaded, the insertion cursor is positioned at the
first character.
</Para>
<Para>The
<Symbol Role="Variable">widget</Symbol> argument specifies the DtEditor widget ID.
</Para>
<Para>The
<Emphasis>fileName</Emphasis> argument is the pathname of the file
relative to the local system.
<![ %CDE.C.CDE; [</Para>
<Para>For a complete definition of the DtEditor widget
and its associated resources, see
&cdeman.DtEditor;. ]]></Para>
</RefSect1>
<RefSect1>
<Title>RETURN VALUE</Title>
<Para>Upon successful completion, the
<Function>DtEditorSetContentsFromFile</Function> function returns one of the following values
when it successfully loads the data into the DtEditor widget:
</Para>
<VariableList>
<VarListEntry>
<Term>DtEDITOR_NO_ERRORS</Term>
<ListItem>
<Para>The file is readable and writable.
</Para>
</ListItem>
</VarListEntry>
<VarListEntry>
<Term>DtEDITOR_READ_ONLY_FILE</Term>
<ListItem>
<Para>The file is read only.
<![ %CDE.C.CDE; [</Para>
</ListItem>
</VarListEntry>
<VarListEntry>
<Term>DtEDITOR_NULLS_REMOVED</Term>
<ListItem>
<Para>The file contained embedded
<SystemItem Class="Constant">NULL</SystemItem> characters, which were removed.
]]></Para>
</ListItem>
</VarListEntry>
</VariableList>
<Para>Otherwise, if it cannot load the data into the DtEditor widget,
the function
returns one of the following values:
</Para>
<VariableList>
<VarListEntry>
<Term>DtEDITOR_NONEXISTENT_FILE</Term>
<ListItem>
<Para>The file does not exist.
</Para>
</ListItem>
</VarListEntry>
<VarListEntry>
<Term>DtEDITOR_DIRECTORY</Term>
<ListItem>
<Para>The file is a directory.
</Para>
</ListItem>
</VarListEntry>
<VarListEntry>
<Term>DtEDITOR_CHAR_SPECIAL_FILE</Term>
<ListItem>
<Para>The file is a character-special device.
</Para>
</ListItem>
</VarListEntry>
<VarListEntry>
<Term>DtEDITOR_BLOCK_MODE_FILE</Term>
<ListItem>
<Para>The file is a block-mode device.
</Para>
</ListItem>
</VarListEntry>
<VarListEntry>
<Term>DtEDITOR_NO_FILE_ACCESS</Term>
<ListItem>
<Para>The file cannot be accessed.
<![ %CDE.C.CDE; [</Para>
</ListItem>
</VarListEntry>
<VarListEntry>
<Term>DtEDITOR_INSUFFICIENT_MEMORY</Term>
<ListItem>
<Para>Not enough system memory is available to load the file.
]]></Para>
</ListItem>
</VarListEntry>
<VarListEntry>
<Term>DtEDITOR_UNREADABLE_FILE</Term>
<ListItem>
<Para>The file is unreadable for an unspecified reason.
</Para>
</ListItem>
</VarListEntry>
</VariableList>
</RefSect1>
<RefSect1>
<Title>APPLICATION USAGE</Title>
<Para>If the data is in memory, rather than a disk file, the application should
use
&cdeman.DtEditorSetContents;.</Para>
</RefSect1>
<RefSect1>
<Title>SEE ALSO</Title>
<Para>&cdeman.Dt.Editor.h;, &cdeman.DtEditor;, &cdeman.DtEditorAppend;, &cdeman.DtEditorAppendFromFile;, &cdeman.DtEditorGetContents;, &cdeman.DtEditorInsert;, &cdeman.DtEditorInsertFromFile;, &cdeman.DtEditorReplace;, &cdeman.DtEditorReplaceFromFile;, &cdeman.DtEditorSaveContentsToFile;, &cdeman.DtEditorSetContents;.</Para>
</RefSect1>
</RefEntry>
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