DM_SETDEFID message
Changes the identifier of the default push button for a dialog box.
#define WM_USER 0x0400
#define DM_SETDEFID (WM_USER+1)
Parameters
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wParam
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The identifier of a push button control that will become the default.
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lParam
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This parameter is not used.
Return value
The return value is always TRUE.
Remarks
This message is processed by the DefDlgProc function. To set the default push button, the function can send WM_GETDLGCODE and BM_SETSTYLE messages to the specified control and the current default push button.
Using the DM_SETDEFID message can result in more than one button appearing to have the default push button state. When the system brings up a dialog, it draws the first push button in the dialog template with the default state border. Sending a DM_SETDEFID message to change the default button will not always remove the default state border from the first push button. In these cases, the application should send a BM_SETSTYLE message to change the first push button border style.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|
See also
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Reference
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Conceptual
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Other Resources