The GetNextDlgGroupItem function retrieves the handle of the first control in a group of controls that precedes (or follows) the specified control in a dialog box.
HWND GetNextDlgGroupItem(
HWND hDlg, |
// handle of dialog box |
HWND hCtl, |
// handle of control |
BOOL bPrevious |
// direction flag |
); |
If GetNextDlgGroupItem succeeds, the return value is the handle of the previous (or next) control in the group of controls.
If the function fails, the return value is NULL. To get extended error information, call GetLastError.
The GetNextDlgGroupItem function searches controls in the order (or reverse order) they were created in the dialog box template. The first control in the group must have the WS_GROUP style; all other controls in the group must have been consecutively created and must not have the WS_GROUP style.
When searching for the previous control, the function returns the first control it locates that is visible and not disabled. If the control given by hCtl has the WS_GROUP style, the function temporarily reverses the search to locate the first control having the WS_GROUP style, then resumes the search in the original direction, returning the first control it locates that is visible and not disabled, or returning hwndCtrl if no such control is found.
When searching for the next control, the function returns the first control it locates that is visible, not disabled, and does not have the WS_GROUP style. If it encounters a control having the WS_GROUP style, the function reverses the search, locates the first control having the WS_GROUP style, and returns this control if it is visible and not disabled. Otherwise, the function resumes the search in the original direction and returns the first control it locates that is visible and not disabled, or returns hCtl if no such control is found.
file: /Techref/os/win/api/win32/func/src/f35_13.htm, 4KB, , updated: 2000/4/7 11:19, local time: 2024/12/24 17:56,
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