Button_SetState macro (windowsx.h)

Sets the highlight state of a button. The highlight state indicates whether the button is highlighted as if the user had pushed it. You can use this macro or send the BM_SETSTATE message explicitly.

LRESULT Button_SetState(
   HWND hwndCtl,
   BOOL state
);

hwndCtl

Type: HWND

A handle to the button control.

state

Type: BOOL

TRUE to highlight the button; otherwise FALSE.

Type: LRESULT

The return value is always zero.

Highlighting affects only the appearance of a button. It has no effect on the check state of a radio button or check box.

A button is automatically highlighted when the user positions the cursor over it and presses and holds the left mouse button. The highlighting is removed when the user releases the mouse button.