Default Button


How can I find out if a button has Default set to true programmatically?

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AndyAinscowFreelance programmer / ConsultantCommented:

Call the GetDefID member function to get the ID of the default  pushbutton control for a dialog box.


A 32-bit value (DWORD). If the default pushbutton has an ID value, the  high-order word contains DC_HASDEFID and the low-order word contains the  ID value. If the default pushbutton does not have an ID value, the return value  is 0.
IssacJonesAuthor Commented:
HIya Andy

Can you please give the code, assuming that the button has been given the variable


associated with it.

AndyAinscowFreelance programmer / ConsultantCommented:
DWORD dw = GetDefID();
if(dw != 0)  //is there a default button?
  ASSERT(HIWORD(dw) == DC_HASDEFID);  //safety check
  UINT nID = LOWORD(dw);  //Get the ID of the default button

  if(IDC_MyButton == nID)
    AfxMessageBox("MyButton is the default button !");

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my 2%:

if ( MyButton.GetDlgCtrlID() == nID )
   AfxMessageBox("MyButton is the default button !");
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System Programming

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