xcall MIAMEX, MX_CHOOSECOLOR, rgb, status
MX_CHOOSECOLOR (MIAMEX 164) displays the color selection dialog and returns the selected RGB value.
Parameters
rgb (B,4 or F6) [in/out]
The RGB color value. On input, it determines the default color selected in the dialog; on output it returns the newly selected color.
status (F) [out]
is 0 for OK, or else indicates an error. Executing this function in a non-GUI environment should return -1.
