This should help.
https://www.mpgh.net/forum/31-c-c/111...er-making.html
The values are near the bottom of the first post. It says :
/* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */
/* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */
Tell me if it works.
Edit: Did you mean the hex value like "0x41"?