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IOCTL_CONSOLE_GETSCREENCOLS (Compact 2013)

  • Artigo

3/28/2014

This I/O control message returns the number of columns visible for a console application. This value does not reflect the number of columns available in the console's buffer. Send this message with DeviceIoControl.

Syntax

BOOL DeviceIoControl(
    HANDLE hDevice,           // handle to device
    DWORD dwIoControlCode,    // use to IOCTL_CONSOLE_GETSCREENCOLS
    LPVOID lpInBuffer,        // pointer to input buffer
    DWORD nInBufferSize,      // input buffer size
    LPVOID lpOutBuffer,       // pointer to output buffer
    DWORD nOutBufferSize,     // output buffer size
    LPDWORD lpBytesReturned,  // number of bytes returned
    OVERLAPPED lpOverlapped   // pointer to OVERLAPPED structure
);

Parameters

  • hDevice
    [in] Handle to the device.
  • dwIoControlCode
    [in] Control code for the operation. Use IOCTL_CONSOLE_GETSCREENCOLS for this operation.
  • lpInBuffer
    [in] Set to NULL.
  • nInBufferSize
    [in] Set to zero.
  • lpOutBuffer
    [out] Not used; set to NULL.
  • nOutBufferSize
    [out] Not used; set to zero.
  • lpBytesReturned
    [out] Not used; set to NULL.
  • lpOverlapped
    [out] Not used; set to NULL.

Return Values

Returns TRUE if successful; otherwise, returns FALSE.

This function copies the number of columns visible in the console to the PBYTE pBufOut.

Requirements

Header

console.h

See Also

Reference

Console IOCTLs

Other Resources

OAL IOCTLs