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/*
Copyright (C) 2012-13 Miranda NG team (http://miranda-ng.org)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation version 2
of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "commonheaders.h"
struct MSubclassData
{
HWND m_hWnd;
int m_iHooks;
WNDPROC *m_hooks;
WNDPROC m_origWndProc;
~MSubclassData()
{
free(m_hooks);
}
};
static LIST<MSubclassData> arSubclass(10, LIST<MSubclassData>::FTSortFunc(HandleKeySortT));
static LRESULT CALLBACK MSubclassWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
MSubclassData *p = arSubclass.find((MSubclassData*)&hwnd);
if (p != NULL) {
for (int i=0; i < p->m_iHooks; i++) {
LRESULT res = p->m_hooks[i](hwnd, uMsg, wParam, lParam);
if (res != 0)
return res;
}
if (uMsg == WM_DESTROY) {
SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR)p->m_origWndProc);
arSubclass.remove(p);
delete p;
}
}
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
MIR_CORE_DLL(void) mir_subclassWindow(HWND hWnd, WNDPROC wndProc)
{
MSubclassData *p = arSubclass.find((MSubclassData*)&hWnd);
if (p == NULL) {
p = new MSubclassData;
p->m_hWnd = hWnd;
p->m_origWndProc = (WNDPROC)SetWindowLongPtr(hWnd, GWLP_WNDPROC, (LONG_PTR)MSubclassWndProc);
p->m_iHooks = 0;
p->m_hooks = (WNDPROC*)malloc( sizeof(WNDPROC));
arSubclass.insert(p);
}
else p->m_hooks = (WNDPROC*)realloc(p->m_hooks, (p->m_iHooks+1)*sizeof(WNDPROC));
p->m_hooks[p->m_iHooks++] = wndProc;
}
MIR_CORE_DLL(void) KillModuleSubclassing(HMODULE hInst)
{
for (int i=0; i < arSubclass.getCount(); i++) {
MSubclassData *p = arSubclass[i];
for (int j=0; j < p->m_iHooks; ) {
if ( GetInstByAddress(p->m_hooks[j]) == hInst) {
for (int k=j+1; k < p->m_iHooks; k++)
p->m_hooks[k-1] = p->m_hooks[k];
p->m_iHooks--;
}
else j++;
}
}
}
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