if (lParam & 0x40000000)
I could just check first for the first key-press? also, i think i will use your Wind-Proc method, but keep the key-class i made... that way i can organize the keys and allow re-defining keys.
Win32 disable or get around key repeating (only check if up or down once)
Author
DX Just that easy? So how instead of using the
I could just check first for the first key-press? also, i think i will use your Wind-Proc method, but keep the key-class i made... that way i can organize the keys and allow re-defining keys.
I could just check first for the first key-press? also, i think i will use your Wind-Proc method, but keep the key-class i made... that way i can organize the keys and allow re-defining keys.
if (lParam & 0x40000000) tests whether or not the leftmost bit of lParam is set (& is the bitwise AND operator, and should not be confused with the logical AND operator &&)
0x... is a Hexadecimal number. 0x40000000 (hex) = 01000000000000000000000000000000 (binary) = 1073741824 (decimal). In C++, there are ways to natively write numbers in decimal, hexadecimal, and octal (but not binary) formats, and I chose hexadecimal for this case because it's easy to read. Like RulerOfNothing said, the & operator is the bitwise AND operator. Googling "C++ operators" should give you plenty to read, as should "bitwise AND".
Author
Oh! so bits 0-15 (16 bits) is the same as 0x40000000 because the 4 is a power of 2? so the 4 counts for 16 bits?
One thing you should remember about hexadecimal is that each hexadecimal digit corresponds to 4 bits, so if you have a 8-digit hexadecimal number, it is actually 32 bits long.
Oh! so bits 0-15 (16 bits) is the same as 0x40000000 because the 4 is a power of 2? so the 4 counts for 16 bits?
Nope. I'm really not sure what it is you were trying to say there either. You should google hexadecimal and how to convert between hex and binary (and decimal).
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