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Gets the current minimum and maximum allowable system times for a date and time picker (DTP) control. You can send this message explicitly or use the DateTime_GetRange macro.
Parameters
-
wParam
- Must be zero.
-
lParam
-
A pointer to a two-element array of SYSTEMTIME structures.
Return value
Returns a DWORD value that is a combination of GDTR_MIN or GDTR_MAX. The first element of the SYSTEMTIME array contains the minimum allowable time if GDTR_MIN is set. The second element of the SYSTEMTIME array contains the maximum allowable time if GDTR_MAX is set.
Remarks
The date and time picker displays only dates/times that fall within the specified range, preventing the user from selecting a date and time that falls outside the range. If the DTM_SETSYSTEMTIME message specifies a date and time that falls outside the range, it will fail.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2003 [desktop apps only] |
| Header |
|