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The following table shows the button messages, with a description of the purpose of each.
| Programming element | Description |
|---|---|
| BM_CLICK | This message is sent by an application to simulate the user clicking a button. |
| BM_GETCHECK | This message is sent by an application to retrieve the check state of a radio button or check box. |
| BM_GETSTATE | This message is sent by an application to determine the state of a button or check box. |
| BM_SETCHECK | This message is sent by an application to set the check state of a radio button or check box. |
| BM_SETSTATE | This message is sent by an application to change the highlight state of a button. |
| BM_SETSTYLE | This message is sent by an application to change the style of a button. |
| BN_CLICKED | This message is sent when the user taps the pen on the touch screen. |
| BN_KILLFOCUS | This message is sent when a button loses the keyboard focus. |
| BN_SETFOCUS | This message is sent when a button receives the keyboard focus. |
| WM_CTLCOLORBTN | This message is sent to the parent window of a button when the button is about to be drawn. |
See Also
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