diff options
| author | George Hazan <george.hazan@gmail.com> | 2013-03-03 12:25:29 +0000 |
|---|---|---|
| committer | George Hazan <george.hazan@gmail.com> | 2013-03-03 12:25:29 +0000 |
| commit | 1492cd4767bc9c7748455639a8eb4429a2771c34 (patch) | |
| tree | 787e7551eaa81832873055b71ef0fd6473a15f0a /src/mir_core/subclass.cpp | |
| parent | 22f041cb647f9c765004d3295d5a57a7220f55f0 (diff) | |
added mechanism of windows subclassing, proof to dynamic plugin unloading
git-svn-id: http://svn.miranda-ng.org/main/trunk@3869 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'src/mir_core/subclass.cpp')
| -rw-r--r-- | src/mir_core/subclass.cpp | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/mir_core/subclass.cpp b/src/mir_core/subclass.cpp new file mode 100644 index 0000000000..50cc8e3920 --- /dev/null +++ b/src/mir_core/subclass.cpp @@ -0,0 +1,85 @@ +/*
+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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