如何将buffer里的每两个字节组成有符号的整数呢
buffer为Pointer类型我现在是这么做,但不知道下一步怎么办
var
Buf: array[0..8191] of Byte;
begin
//pbar.Position := Trunc(Buffer[0]*100);
Move(Buffer^, Buf, Count);
end
请大家请点一下
buffer为Pointer类型我现在是这么做,但不知道下一步怎么办
var
Buf: array[0..8191] of Byte;
begin
//pbar.Position := Trunc(Buffer[0]*100);
Move(Buffer^, Buf, Count);
end
请大家请点一下
iValue:Smallint;...
iValue:= Buf[0]*$100 + Buf[1];
Buf : array[0..8191] of Byte;
Buffer: PSmallint;
iLoop : Integer;
begin
Buf[0] := 1;
Buf[1] := 0;
Buf[2] := 2;
Buf[3] := 0; ...... Buffer := @Buf[0];
for iLoop := 0 to SizeOf(Buf) div SizeOf(Smallint) - 1 do
begin
ShowMessage (IntToStr(Buffer^));
inc(Buffer);
end;
end;
var
value: smallint;
begin
Move(Buffer^,value,2);//拷贝buffer内存块的第一第二字节
end
var
Buf: array[0..8191] of smallint;
begin
//pbar.Position := Trunc(Buffer[0]*100);
for i := 0 to 8191 do begin
Move(Buffer^, Buf, 2);
buffer := pointer(integer(buffer) + 2);
end;
end或者强制类型转换直接使用。
buffer := pointer(interge(buffer)+移位)
siResult := smallint(buffer^);