Important Notice
The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
BM_QUERYCHECK (1.2)
◄Message Group► ◄Overview► ◄Up► ◄Next► ◄Previous►
────────────────────────────────────────────────────────────────────────────
#define INCL_WINBUTTONS
BM_QUERYCHECK
mp1 = 0L; /* not used, must be zero */
mp2 = 0L; /* not used, must be zero */
An application sends a BM_QUERYCHECK message to determine the checked state
of a button control.
This message does not use any parameters.
Return Value
The return value from a button control created with the BS_CHECKBOX,
BS_AUTOCHECKBOX, BS_RADIOBUTTON, BS_AUTORADIOBUTTON, BS_3STATE, or
BS_AUTO3STATE style is one of the following values:
Value Meaning
────────────────────────────────────────────────────────────────────────────
0 Button state is unchecked.
1 Button state is checked.
2 Button state is indeterminate.
If the button style is any other value, the return value is zero.
See Also
BM_QUERYHILITE, BM_SETCHECK
♦