Hello, I dont know how to extract data from a LParam value from a WM_KEYDOWN message. Documentation says that LPARAM "Specifies the repeat count, scan code, extended-key flag, context code, previous key-state flag, and transition-state flag" well all I get is one big number. Since this statement used "and" instead of "or" this makes me wonder if there is some type of byte calculations that need to be done to extract each piece? Here are the values
0-15 Specifies the repeat count. The value is the number of times the keystroke is repeated as a result of the user holding down the key. 16-23 Specifies the scan code. The value depends on the original equipment manufacturer (OEM). 24 Specifies whether the key is an extended key, such as the right-hand ALT and CTRL keys that appear on an enhanced 101- or 102-key keyboard. The value is 1 if it is an extended key; otherwise, it is 0. 25-28 Reserved; do not use. 29 Specifies the context code. The value is always 0 for a WM_KEYDOWN message. 30 Specifies the previous key state. The value is 1 if the key is down before the message is sent, or it is 0 if the key is up. 31 Specifies the transition state. The value is always 0 for a WM_KEYDOWN message. The lparam value I get in my function that hooks key strokes returns 983041. Is this bogus data or should it have returned a 2 digit number as above? __________________________________________________ Delphi-Talk mailing list -> [email protected] http://www.elists.org/mailman/listinfo/delphi-talk
