| Constant | 
Value | 
Description | 
| apYesNo | 
4 | 
Display Yes and No buttons. | 
| apCancel | 
2 | 
Cancel button was pressed. | 
| apAbort | 
3 | 
Abort button was pressed. | 
| apRetry | 
4 | 
Retry button was pressed. | 
| apIgnore | 
5 | 
Ignore button was pressed. | 
| apYes | 
6 | 
Yes button was pressed. | 
| apNo | 
7 | 
No button was pressed. | 
| apOKOnly | 
0 | 
Display OK button only. | 
| apOKCancel | 
1 | 
Display OK and Cancel buttons. | 
| apOk | 
1 | 
OK button was pressed. | 
| apYesNoCancel | 
3 | 
Display Yes, No, and Cancel buttons. | 
| apDefaultButton4 | 
768 | 
Fourth button is the default. | 
| apRetryCancel | 
5 | 
Display Retry and Cancel buttons. | 
| apCritical | 
16 | 
Display Critical Message icon. | 
| apQuestion | 
32 | 
Display Warning Query icon. | 
| apExclamation | 
48 | 
Display Warning Message icon. | 
| apInformation | 
64 | 
Display Information Message icon. | 
| apDefaultButton1 | 
0 | 
First button is the default. | 
| apDefaultButton2 | 
256 | 
Second button is the default. | 
| apDefaultButton3 | 
512 | 
Third button is the default. | 
| apAbortRetryIgnore | 
2 | 
Display Abort, Retry, and Ignore buttons. |