BOOL UnregisterHotKey(HWND hWnd, int id)
{
MWHOTKEY *pHotkey = MwFindHotkey(id);
if (!pHotkey) return FALSE;
GdListRemove(&mwHotkeyHead, &pHotkey->link);
GdItemFree(pHotkey);
return TRUE;
}
BOOL WINAPI
UnregisterClass(LPCSTR lpClassName, HINSTANCE hInstance)
{
PWNDCLASS pClass;
pClass = MwFindClassByName(lpClassName);
if(!pClass)
return FALSE;
GdListRemove(&mwClassHead, &pClass->link);
DeleteObject(pClass->hbrBackground);
GdItemFree(pClass);
return TRUE;
}
static BOOL MwRemoveWndFromHotkeys (HWND hWnd)
{
PMWLIST p, pNext;
MWHOTKEY *pHotkey;
BOOL bRet = FALSE;
for (p=mwHotkeyHead.head; p; p=pNext) {
pNext = p->next;
pHotkey = GdItemAddr (p, MWHOTKEY, link);
if (pHotkey->hWnd == hWnd) {
GdListRemove(&mwHotkeyHead, &pHotkey->link);
GdItemFree(pHotkey);
bRet = TRUE;
}
}
return bRet;
}
/**
* Destroy an image.
*
* @param id Image to free.
*/
void
GdFreeImage(int id)
{
PIMAGEITEM pItem;
PMWIMAGEHDR pimage;
pItem = findimage(id);
if (pItem) {
GdListRemove(&imagehead, &pItem->link);
pimage = pItem->pimage;
/* delete image bits*/
if(pimage->imagebits)
free(pimage->imagebits);
if(pimage->palette)
free(pimage->palette);
free(pimage);
GdItemFree(pItem);
}
}
BOOL WINAPI
PeekMessage(LPMSG lpMsg, HWND hwnd, UINT uMsgFilterMin, UINT uMsgFilterMax,
UINT wRemoveMsg)
{
HWND wp;
PMSG pNxtMsg;
/* check if no messages in queue*/
if(mwMsgHead.head == NULL) {
#if PAINTONCE
/* check all windows for pending paint messages*/
for(wp=listwp; wp; wp=wp->next) {
if(!(wp->style & WS_CHILD)) {
if(chkPaintMsg(wp, lpMsg))
return TRUE;
}
}
for(wp=listwp; wp; wp=wp->next) {
if(wp->style & WS_CHILD) {
if(chkPaintMsg(wp, lpMsg))
return TRUE;
}
}
#endif
MwSelect(FALSE);
}
if(mwMsgHead.head == NULL)
return FALSE;
pNxtMsg = (PMSG)mwMsgHead.head;
if(wRemoveMsg & PM_REMOVE)
GdListRemove(&mwMsgHead, &pNxtMsg->link);
*lpMsg = *pNxtMsg;
if(wRemoveMsg & PM_REMOVE)
GdItemFree(pNxtMsg);
return TRUE;
}
HANDLE WINAPI
RemoveProp(HWND hWnd, LPCSTR lpString)
{
ATOM Atom;
PMWLIST p;
MWPROP *pProp;
HANDLE hRet;
if (HIWORD(lpString))
Atom = GlobalFindAtom(lpString);
else
Atom = LOWORD((DWORD)lpString);
for(p=hWnd->props.head; p; p=p->next) {
pProp = GdItemAddr(p, MWPROP, link);
if (pProp->Atom == Atom) {
hRet = pProp->hData;
GdListRemove(&hWnd->props, &pProp->link);
GdItemFree(pProp);
return hRet;
}
}
return NULL;
}
/*
* Destroy the specified window, and all of its children.
* This is a recursive routine.
*/
void
MwDestroyWindow(HWND hwnd,BOOL bSendMsg)
{
HWND wp = hwnd;
HWND prevwp;
PMWLIST p;
PMSG pmsg;
if (wp == rootwp || !IsWindow (hwnd))
return;
/*
* Unmap the window.
*/
if (wp->unmapcount == 0)
MwHideWindow(wp, FALSE, FALSE);
if(bSendMsg)
SendMessage(hwnd, WM_DESTROY, 0, 0L);
/*
* Remove from timers
*/
MwRemoveWndFromTimers(hwnd);
/*
* Remove hotkeys
*/
MwRemoveWndFromHotkeys(hwnd);
/*
* Disable all sendmessages to this window.
*/
wp->lpfnWndProc = NULL;
/*
* Destroy all children, sending WM_DESTROY messages.
*/
while (wp->children)
MwDestroyWindow(wp->children, bSendMsg);
wp->pClass = NULL;
/*
* Free any cursor associated with the window.
*/
if (wp->cursor->usecount-- == 1) {
free(wp->cursor);
wp->cursor = NULL;
}
/*
* Remove this window from the child list of its parent.
*/
prevwp = wp->parent->children;
if (prevwp == wp)
wp->parent->children = wp->siblings;
else {
while (prevwp && prevwp->siblings != wp)
prevwp = prevwp->siblings;
if (prevwp) prevwp->siblings = wp->siblings;
}
wp->siblings = NULL;
/*
* Remove this window from the complete list of windows.
*/
prevwp = listwp;
if (prevwp == wp)
listwp = wp->next;
else {
while (prevwp->next && prevwp->next != wp)
prevwp = prevwp->next;
prevwp->next = wp->next;
}
wp->next = NULL;
/*
* Forget various information related to this window.
* Then finally free the structure.
*/
/* Remove all messages from msg queue for this window*/
for(p=mwMsgHead.head; p; ) {
pmsg = GdItemAddr(p, MSG, link);
if(pmsg->hwnd == wp) {
p = p->next;
GdListRemove(&mwMsgHead, &pmsg->link);
GdItemFree(pmsg);
} else
p = p->next;
}
/*
* Remove all properties from this window.
*/
for(p=hwnd->props.head; p; ) {
MWPROP *pProp = GdItemAddr(p, MWPROP, link);
p = p->next;
GdListRemove (&hwnd->props, &pProp->link);
GdItemFree (pProp);
}
/* FIXME: destroy hdc's relating to window?*/
if (wp == capturewp) {
capturewp = NULL;
MwCheckMouseWindow();
}
if (wp == MwGetTopWindow(focuswp))
SetFocus(rootwp->children? rootwp->children: rootwp);
/* destroy private DC*/
if(wp->owndc) {
HDC hdc = wp->owndc;
wp->owndc = NULL; /* force destroy with ReleaseDC*/
ReleaseDC(wp, hdc);
}
if (wp->szTitle) {
free(wp->szTitle);
wp->szTitle = NULL;
}
#if UPDATEREGIONS
if (wp->update) {
GdDestroyRegion(wp->update);
wp->update = NULL;
}
#endif
GdItemFree(wp);
}
