Function UpdateConsoleVars

rEFIt_UEFI/refit/screen.cpp:496–520

//

static VOID UpdateConsoleVars()
{
    UINTN i;

    // get size of text console
	if  (gST->ConOut->QueryMode(gST->ConOut, gST->ConOut->Mode->Mode, &ConWidth, &ConHeight) != EFI_SUCCESS) {
        // use default values on error
        ConWidth = 80;
        ConHeight = 25;
    }

    // free old BlankLine when it exists
    if (BlankLine != NULL) {
        FreePool(BlankLine);
    }

    // make a buffer for a whole text line
    BlankLine = (__typeof__(BlankLine))AllocatePool((ConWidth + 1) * sizeof(CHAR16));
	
	for (i = 0; i < ConWidth; i++) {
        BlankLine[i] = ' ';
	}
	
    BlankLine[i] = 0;
}