Write the contents of a buffer to an open file, with an ANSI to OEM conversion option.
XSharp.Core (in XSharp.Core.dll) Version: 2.7
Syntax Request Example
ptrHandle AS IntPtr,
ptrBuffer AS BYTE,
dwBytes AS DWORD,
lAnsi AS LOGIC
) AS DWORD
public static uint FWrite4(
- Type: IntPtr
The handle of the file to write to.
- Type: Byte
A pointer to the buffer to write
- Type: UInt32
The number of bytes in <ptrBuffer> to write, beginning at the current file pointer position.
- Type: Boolean
If FALSE , an ANSI to OEM conversion is made.
The number of bytes written.
If the value returned is equal to <dwBytes>, the operation was successful.
If the return value is less than <dwBytes> or 0, this means that the length of <ptrBuffer> is less than <dwBytes>, or the disk is full, or another error has occurred. FError() can be used to determine the specific error.
FWrite4() is the same as FWrite3() except that it provides the option of doing an ANSI to OEM conversion.
Conversions between OEM en Ansi were relevant in an Ansi environment like Visual Objects.
In a Unicode environment this conversion is noto much a conversion between OEM and Ansi but a
conversion between either Unicode and Ansi or Unicode and OEM. |
For these conversions the runtime uses the current values of the
This example writes the contents of a PSZ to a file while performing an ANSI to OEM conversion:
1LOCAL pszBuff AS PSZ
2LOCAL ptrHandle AS PTR
3pszBuff := "hello"
4ptrHandle := FOpen2("temp.bin", FO_READWRITE)
5IF ptrHandle != F_ERROR
6 FWrite4(ptrHandle, pszBuff,;
7 PszLen(pszBuff), FALSE)