introduce the ability to modify the hotkey

* also, I've discovered that I can manually edit resource files.
alzwded · Nov 9, 2014 · f8d1da8 · f8d1da8
1 parent dd0b6b1
commit f8d1da8
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Showing 3 changed files with 103 additions and 2 deletions.
diff --git a/AltTabber/AltTabber.cpp b/AltTabber/AltTabber.cpp
@@ -53,6 +53,11 @@ struct {
     signed long activeSlot;
     BOOL logging;
     FILE* freopened;
+    struct {
+        UINT modifiers;
+        UINT key;
+    } hotkey;
+
     HWND hWnd;
     std::map<HMONITOR, std::vector<AppThumb_t> > thumbnails;
     std::vector<SlotThing_t> slots;
@@ -63,6 +68,7 @@ struct {
     -1,
     FALSE,
     NULL,
+    { MOD_ALT | MOD_CONTROL, '3' },
 };
 
 // Global Variables:
@@ -252,6 +258,88 @@ static MonitorGeom_t GetMonitorGeometry()
     return ret;
 }
 
+void SynchronizeWithRegistry()
+{
+#define SUBKEY (_T("Software\\jakkal\\AltTabber"))
+    HKEY phk = NULL;
+    DWORD disposition = 0;
+    auto hr = RegCreateKeyEx(HKEY_CURRENT_USER,
+        SUBKEY,
+        0, 
+        NULL,
+        0,
+        KEY_READ | KEY_QUERY_VALUE | KEY_SET_VALUE | KEY_WRITE,
+        NULL,
+        &phk,
+        &disposition);
+
+    if(hr != ERROR_SUCCESS) {
+        log(_T("RegCreateKey failed %d: errno: %d\n"), hr, GetLastError());
+        return;
+    }
+
+    DWORD dModifiers = (DWORD)g_programState.hotkey.modifiers;
+    DWORD dKey = (DWORD)g_programState.hotkey.key;
+    DWORD dSize = sizeof(DWORD);
+
+    switch(disposition) {
+    case REG_CREATED_NEW_KEY: {
+        // set default values
+        hr = RegSetValueEx(phk,
+            _T("modifiers"),
+            0,
+            REG_DWORD,
+            (BYTE*)&dModifiers,
+            sizeof(DWORD));
+        if(hr != ERROR_SUCCESS) {
+            log(_T("RegSetValue failed %d: errno %d\n"), hr, GetLastError());
+            goto finished;
+        }
+        hr = RegSetValueEx(phk,
+            _T("key"),
+            0,
+            REG_DWORD,
+            (BYTE*)&dKey,
+            sizeof(DWORD));
+        if(hr != ERROR_SUCCESS) {
+            log(_T("RegSetValue failed %d: errno %d\n"), hr, GetLastError());
+            goto finished;
+        }
+        break; }
+    case REG_OPENED_EXISTING_KEY:
+        // read values
+        dSize = sizeof(DWORD);
+        hr = RegQueryValueEx(phk,
+            _T("modifiers"),
+            0,
+            NULL,
+            (BYTE*)&dModifiers,
+            &dSize);
+        if(hr != ERROR_SUCCESS) {
+            log(_T("RegQueryValue failed %d: errno %d\n"), hr, GetLastError());
+            goto finished;
+        }
+        dSize = sizeof(DWORD);
+        hr = RegQueryValueEx(phk,
+            _T("key"),
+            0,
+            NULL,
+            (BYTE*)&dKey,
+            &dSize);
+        if(hr != ERROR_SUCCESS) {
+            log(_T("RegQueryValue failed %d: errno %d\n"), hr, GetLastError());
+            goto finished;
+        }
+
+        g_programState.hotkey.modifiers = (UINT)(ULONG)dModifiers;
+        g_programState.hotkey.key = (UINT)(ULONG)dKey;
+        break;
+    }
+
+finished:
+    RegCloseKey(phk);
+}
+
 //
 //   FUNCTION: InitInstance(HINSTANCE, int)
 //
@@ -291,11 +379,13 @@ BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
     ShowWindow(hWnd, SW_HIDE);
     UpdateWindow(hWnd);
 
+    SynchronizeWithRegistry();
+
     if(RegisterHotKey(
                 hWnd,
                 1,
-                MOD_ALT | MOD_CONTROL,
-                '3'))
+                g_programState.hotkey.modifiers,
+                g_programState.hotkey.key))
     {
         log(_T("win+caps registered\n"));
     }

diff --git a/AltTabber/AltTabber.rc b/AltTabber/AltTabber.rc
diff --git a/README.md b/README.md
@@ -16,6 +16,17 @@ The keys and functionality:
 | start/stop logging | `F2` | this is a debug log; it writes it somewhere in `%TEMP%` in a  file with a name like `alt????.tmp` |
 | search | any printable characters | starts filtering the windows by name and/or image path in order to help find your window |
 
+Changing the hotkey
+-------------------
+
+The hotkey can be changed from `Ctrl`-`Alt`-`3` by going in the registry under `HKEY_CURRENT_USER\Software\jakkal\AltTabber` and modifying the `modifiers` and `key` values.
+
+The `modifiers` value is a combination of [the values described for fsModifeirs here](http://msdn.microsoft.com/en-us/library/windows/desktop/ms646309.aspx) things.
+
+The `key` value is one of [these](http://msdn.microsoft.com/en-us/library/windows/desktop/dd375731.aspx) things.
+
+If you mess something up, just delete the `HKEY_CURRENT_USER\Software\jakka\AltTabber` key and the app will make sure to recreate it again from defaults.
+
 Disclaimer
 ==========