LRESULT wmNotifyChild(NMHDR hdr, int /*long*/ wParam, int /*long*/ lParam) {
if (OS.COMCTL32_MAJOR >= 6) {
switch (hdr.code) {
case OS.NM_RETURN:
case OS.NM_CLICK:
NMLINK item = new NMLINK();
OS.MoveMemory(item, lParam, NMLINK.sizeof);
Event event = new Event();
event.text = ids[item.iLink];
sendSelectionEvent(SWT.Selection, event, true);
break;
}
}
return super.wmNotifyChild(hdr, wParam, lParam);
}
static {
if (OS.COMCTL32_MAJOR >= 6) {
WNDCLASS lpWndClass = new WNDCLASS();
OS.GetClassInfo(0, LinkClass, lpWndClass);
LinkProc = lpWndClass.lpfnWndProc;
/*
* Feature in Windows. The SysLink window class
* does not include CS_DBLCLKS. This means that these
* controls will not get double click messages such as
* WM_LBUTTONDBLCLK. The fix is to register a new
* window class with CS_DBLCLKS.
*
* NOTE: Screen readers look for the exact class name
* of the control in order to provide the correct kind
* of assistance. Therefore, it is critical that the
* new window class have the same name. It is possible
* to register a local window class with the same name
* as a global class. Since bits that affect the class
* are being changed, it is possible that other native
* code, other than SWT, could create a control with
* this class name, and fail unexpectedly.
*/
int /*long*/ hInstance = OS.GetModuleHandle(null);
int /*long*/ hHeap = OS.GetProcessHeap();
lpWndClass.hInstance = hInstance;
lpWndClass.style &= ~OS.CS_GLOBALCLASS;
lpWndClass.style |= OS.CS_DBLCLKS;
int byteCount = LinkClass.length() * TCHAR.sizeof;
int /*long*/ lpszClassName = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
OS.MoveMemory(lpszClassName, LinkClass, byteCount);
lpWndClass.lpszClassName = lpszClassName;
OS.RegisterClass(lpWndClass);
OS.HeapFree(hHeap, 0, lpszClassName);
} else {
LinkProc = 0;
}
}