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// 10 april 2015
#include "uipriv_windows.h"
// for maximum safety, all controls that don't have a parent are made children of this, the "initial parent"
// it behaves like other containers due to bugs described in container_windows.c, but is never seen and cannot be interacted with by end users
// despite being called the initial parent, it is used whenever a control has no parent, even if it loses its parent at some later point during the execution of the program
#define uiInitialParentClass L"uiInitialParentClass"
HWND initialParent;
static LRESULT CALLBACK initialParentWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
LRESULT lResult;
if (sharedWndProc(hwnd, uMsg, wParam, lParam, &lResult) != FALSE)
return lResult;
return DefWindowProcW(hwnd, uMsg, wParam, lParam);
}
const char *initInitialParent(HICON hDefaultIcon, HCURSOR hDefaultCursor)
{
WNDCLASSW wc;
ZeroMemory(&wc, sizeof (WNDCLASSW));
wc.lpszClassName = uiInitialParentClass;
wc.lpfnWndProc = initialParentWndProc;
wc.hInstance = hInstance;
wc.hIcon = hDefaultIcon;
wc.hCursor = hDefaultCursor;
wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1);
if (RegisterClassW(&wc) == 0)
return "registering initial parent window class";
initialParent = CreateWindowExW(0,
uiInitialParentClass, L"",
WS_OVERLAPPEDWINDOW,
0, 0,
100, 100,
NULL, NULL, hInstance, NULL);
if (initialParent == NULL)
return "creating initial parent window";
// TODO disable?
return NULL;
}
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